8810 lines
248 KiB
Text
8810 lines
248 KiB
Text
# Copyright 1992-2022 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file was written by Fred Fish. (fnf@cygnus.com)
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# Generic gdb subroutines that should work for any target. If these
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# need to be modified for any target, it can be done with a variable
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# or by passing arguments.
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if {$tool == ""} {
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# Tests would fail, logs on get_compiler_info() would be missing.
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send_error "`site.exp' not found, run `make site.exp'!\n"
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exit 2
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}
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# If GDB is built with ASAN (and because there are leaks), it will output a
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# leak report when exiting as well as exit with a non-zero (failure) status.
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# This can affect tests that are sensitive to what GDB prints on stderr or its
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# exit status. Add `detect_leaks=0` to the ASAN_OPTIONS environment variable
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# (which will affect any spawned sub-process) to avoid this.
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append ::env(ASAN_OPTIONS) ",detect_leaks=0"
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# List of procs to run in gdb_finish.
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set gdb_finish_hooks [list]
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# Variable in which we keep track of globals that are allowed to be live
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# across test-cases.
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array set gdb_persistent_globals {}
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# Mark variable names in ARG as a persistent global, and declare them as
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# global in the calling context. Can be used to rewrite "global var_a var_b"
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# into "gdb_persistent_global var_a var_b".
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proc gdb_persistent_global { args } {
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global gdb_persistent_globals
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foreach varname $args {
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uplevel 1 global $varname
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set gdb_persistent_globals($varname) 1
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}
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}
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# Mark variable names in ARG as a persistent global.
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proc gdb_persistent_global_no_decl { args } {
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global gdb_persistent_globals
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foreach varname $args {
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set gdb_persistent_globals($varname) 1
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}
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}
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# Override proc load_lib.
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rename load_lib saved_load_lib
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# Run the runtest version of load_lib, and mark all variables that were
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# created by this call as persistent.
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proc load_lib { file } {
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array set known_global {}
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foreach varname [info globals] {
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set known_globals($varname) 1
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}
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set code [catch "saved_load_lib $file" result]
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foreach varname [info globals] {
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if { ![info exists known_globals($varname)] } {
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gdb_persistent_global_no_decl $varname
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}
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}
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if {$code == 1} {
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global errorInfo errorCode
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return -code error -errorinfo $errorInfo -errorcode $errorCode $result
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} elseif {$code > 1} {
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return -code $code $result
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}
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return $result
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}
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load_lib libgloss.exp
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load_lib cache.exp
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load_lib gdb-utils.exp
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load_lib memory.exp
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load_lib check-test-names.exp
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# The path to the GDB binary to test.
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global GDB
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# The data directory to use for testing. If this is the empty string,
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# then we let GDB use its own configured data directory.
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global GDB_DATA_DIRECTORY
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# The spawn ID used for I/O interaction with the inferior. For native
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# targets, or remote targets that can do I/O through GDB
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# (semi-hosting) this will be the same as the host/GDB's spawn ID.
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# Otherwise, the board may set this to some other spawn ID. E.g.,
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# when debugging with GDBserver, this is set to GDBserver's spawn ID,
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# so input/output is done on gdbserver's tty.
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global inferior_spawn_id
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if [info exists TOOL_EXECUTABLE] {
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set GDB $TOOL_EXECUTABLE
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}
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if ![info exists GDB] {
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if ![is_remote host] {
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set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
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} else {
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set GDB [transform gdb]
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}
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} else {
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# If the user specifies GDB on the command line, and doesn't
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# specify GDB_DATA_DIRECTORY, then assume we're testing an
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# installed GDB, and let it use its own configured data directory.
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if ![info exists GDB_DATA_DIRECTORY] {
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set GDB_DATA_DIRECTORY ""
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}
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}
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verbose "using GDB = $GDB" 2
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# The data directory the testing GDB will use. By default, assume
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# we're testing a non-installed GDB in the build directory. Users may
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# also explictly override the -data-directory from the command line.
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if ![info exists GDB_DATA_DIRECTORY] {
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set GDB_DATA_DIRECTORY "[pwd]/../data-directory"
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}
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verbose "using GDB_DATA_DIRECTORY = $GDB_DATA_DIRECTORY" 2
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# GDBFLAGS is available for the user to set on the command line.
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# E.g. make check RUNTESTFLAGS=GDBFLAGS=mumble
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# Testcases may use it to add additional flags, but they must:
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# - append new flags, not overwrite
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# - restore the original value when done
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global GDBFLAGS
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if ![info exists GDBFLAGS] {
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set GDBFLAGS ""
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}
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verbose "using GDBFLAGS = $GDBFLAGS" 2
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# Append the -data-directory option to pass to GDB to CMDLINE and
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# return the resulting string. If GDB_DATA_DIRECTORY is empty,
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# nothing is appended.
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proc append_gdb_data_directory_option {cmdline} {
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global GDB_DATA_DIRECTORY
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if { $GDB_DATA_DIRECTORY != "" } {
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return "$cmdline -data-directory $GDB_DATA_DIRECTORY"
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} else {
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return $cmdline
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}
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}
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# INTERNAL_GDBFLAGS contains flags that the testsuite requires.
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# `-nw' disables any of the windowed interfaces.
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# `-nx' disables ~/.gdbinit, so that it doesn't interfere with the tests.
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# `-iex "set {height,width} 0"' disables pagination.
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# `-data-directory' points to the data directory, usually in the build
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# directory.
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global INTERNAL_GDBFLAGS
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if ![info exists INTERNAL_GDBFLAGS] {
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set INTERNAL_GDBFLAGS \
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[join [list \
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"-nw" \
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"-nx" \
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{-iex "set height 0"} \
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{-iex "set width 0"}]]
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set INTERNAL_GDBFLAGS [append_gdb_data_directory_option $INTERNAL_GDBFLAGS]
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}
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# The variable gdb_prompt is a regexp which matches the gdb prompt.
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# Set it if it is not already set. This is also set by default_gdb_init
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# but it's not clear what removing one of them will break.
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# See with_gdb_prompt for more details on prompt handling.
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global gdb_prompt
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if ![info exists gdb_prompt] then {
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set gdb_prompt "\\(gdb\\)"
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}
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# A regexp that matches the pagination prompt.
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set pagination_prompt \
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"--Type <RET> for more, q to quit, c to continue without paging--"
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# The variable fullname_syntax_POSIX is a regexp which matches a POSIX
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# absolute path ie. /foo/
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set fullname_syntax_POSIX {/[^\n]*/}
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# The variable fullname_syntax_UNC is a regexp which matches a Windows
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# UNC path ie. \\D\foo\
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set fullname_syntax_UNC {\\\\[^\\]+\\[^\n]+\\}
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# The variable fullname_syntax_DOS_CASE is a regexp which matches a
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# particular DOS case that GDB most likely will output
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# ie. \foo\, but don't match \\.*\
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set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\}
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# The variable fullname_syntax_DOS is a regexp which matches a DOS path
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# ie. a:\foo\ && a:foo\
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set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\}
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# The variable fullname_syntax is a regexp which matches what GDB considers
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# an absolute path. It is currently debatable if the Windows style paths
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# d:foo and \abc should be considered valid as an absolute path.
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# Also, the purpse of this regexp is not to recognize a well formed
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# absolute path, but to say with certainty that a path is absolute.
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set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
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# Needed for some tests under Cygwin.
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global EXEEXT
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global env
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if ![info exists env(EXEEXT)] {
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set EXEEXT ""
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} else {
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set EXEEXT $env(EXEEXT)
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}
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set octal "\[0-7\]+"
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set inferior_exited_re "(?:\\\[Inferior \[0-9\]+ \\(\[^\n\r\]*\\) exited)"
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# A regular expression that matches a value history number.
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# E.g., $1, $2, etc.
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set valnum_re "\\\$$decimal"
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### Only procedures should come after this point.
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#
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# gdb_version -- extract and print the version number of GDB
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#
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proc default_gdb_version {} {
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global GDB
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global INTERNAL_GDBFLAGS GDBFLAGS
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global gdb_prompt
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global inotify_pid
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if {[info exists inotify_pid]} {
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eval exec kill $inotify_pid
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}
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set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"]
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set tmp [lindex $output 1]
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set version ""
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regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
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if ![is_remote host] {
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clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
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} else {
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clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
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}
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}
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proc gdb_version { } {
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return [default_gdb_version]
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}
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#
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# gdb_unload -- unload a file if one is loaded
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# Return 0 on success, -1 on error.
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#
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proc gdb_unload {} {
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global GDB
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global gdb_prompt
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send_gdb "file\n"
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gdb_expect 60 {
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-re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
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-re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
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-re "A program is being debugged already.*Are you sure you want to change the file.*y or n. $" {
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send_gdb "y\n" answer
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exp_continue
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}
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-re "Discard symbol table from .*y or n.*$" {
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send_gdb "y\n" answer
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exp_continue
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}
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-re "$gdb_prompt $" {}
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-re "A problem internal to GDB has been detected" {
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perror "Couldn't unload file in $GDB (GDB internal error)."
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gdb_internal_error_resync
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return -1
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}
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timeout {
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perror "couldn't unload file in $GDB (timeout)."
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return -1
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}
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}
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return 0
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}
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# Many of the tests depend on setting breakpoints at various places and
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# running until that breakpoint is reached. At times, we want to start
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# with a clean-slate with respect to breakpoints, so this utility proc
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# lets us do this without duplicating this code everywhere.
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#
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proc delete_breakpoints {} {
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global gdb_prompt
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# we need a larger timeout value here or this thing just confuses
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# itself. May need a better implementation if possible. - guo
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#
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set timeout 100
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set msg "delete all breakpoints in delete_breakpoints"
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set deleted 0
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gdb_test_multiple "delete breakpoints" "$msg" {
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-re "Delete all breakpoints.*y or n.*$" {
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send_gdb "y\n" answer
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exp_continue
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}
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-re "$gdb_prompt $" {
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set deleted 1
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}
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}
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if {$deleted} {
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# Confirm with "info breakpoints".
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set deleted 0
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set msg "info breakpoints"
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gdb_test_multiple $msg $msg {
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-re "No breakpoints or watchpoints..*$gdb_prompt $" {
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set deleted 1
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}
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-re "$gdb_prompt $" {
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}
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}
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}
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if {!$deleted} {
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perror "breakpoints not deleted"
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}
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}
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# Returns true iff the target supports using the "run" command.
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proc target_can_use_run_cmd {} {
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if [target_info exists use_gdb_stub] {
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# In this case, when we connect, the inferior is already
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# running.
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return 0
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}
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# Assume yes.
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return 1
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}
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# Generic run command.
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#
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# Return 0 if we could start the program, -1 if we could not.
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#
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# The second pattern below matches up to the first newline *only*.
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# Using ``.*$'' could swallow up output that we attempt to match
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# elsewhere.
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#
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# INFERIOR_ARGS is passed as arguments to the start command, so may contain
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# inferior arguments.
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#
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# N.B. This function does not wait for gdb to return to the prompt,
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# that is the caller's responsibility.
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proc gdb_run_cmd { {inferior_args {}} } {
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global gdb_prompt use_gdb_stub
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foreach command [gdb_init_commands] {
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send_gdb "$command\n"
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gdb_expect 30 {
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-re "$gdb_prompt $" { }
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default {
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perror "gdb_init_command for target failed"
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return
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}
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}
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}
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if $use_gdb_stub {
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if [target_info exists gdb,do_reload_on_run] {
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if { [gdb_reload $inferior_args] != 0 } {
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return -1
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}
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send_gdb "continue\n"
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gdb_expect 60 {
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-re "Continu\[^\r\n\]*\[\r\n\]" {}
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default {}
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}
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return 0
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}
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if [target_info exists gdb,start_symbol] {
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set start [target_info gdb,start_symbol]
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} else {
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set start "start"
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}
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send_gdb "jump *$start\n"
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set start_attempt 1
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while { $start_attempt } {
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# Cap (re)start attempts at three to ensure that this loop
|
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# always eventually fails. Don't worry about trying to be
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# clever and not send a command when it has failed.
|
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if [expr $start_attempt > 3] {
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perror "Jump to start() failed (retry count exceeded)"
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return -1
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}
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set start_attempt [expr $start_attempt + 1]
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gdb_expect 30 {
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-re "Continuing at \[^\r\n\]*\[\r\n\]" {
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set start_attempt 0
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}
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-re "No symbol \"_start\" in current.*$gdb_prompt $" {
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perror "Can't find start symbol to run in gdb_run"
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return -1
|
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}
|
||
-re "No symbol \"start\" in current.*$gdb_prompt $" {
|
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send_gdb "jump *_start\n"
|
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}
|
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-re "No symbol.*context.*$gdb_prompt $" {
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set start_attempt 0
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}
|
||
-re "Line.* Jump anyway.*y or n. $" {
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send_gdb "y\n" answer
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}
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-re "The program is not being run.*$gdb_prompt $" {
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if { [gdb_reload $inferior_args] != 0 } {
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return -1
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}
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send_gdb "jump *$start\n"
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}
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||
timeout {
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perror "Jump to start() failed (timeout)"
|
||
return -1
|
||
}
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
if [target_info exists gdb,do_reload_on_run] {
|
||
if { [gdb_reload $inferior_args] != 0 } {
|
||
return -1
|
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}
|
||
}
|
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send_gdb "run $inferior_args\n"
|
||
# This doesn't work quite right yet.
|
||
# Use -notransfer here so that test cases (like chng-sym.exp)
|
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# may test for additional start-up messages.
|
||
gdb_expect 60 {
|
||
-re "The program .* has been started already.*y or n. $" {
|
||
send_gdb "y\n" answer
|
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exp_continue
|
||
}
|
||
-notransfer -re "Starting program: \[^\r\n\]*" {}
|
||
-notransfer -re "$gdb_prompt $" {
|
||
# There is no more input expected.
|
||
}
|
||
-notransfer -re "A problem internal to GDB has been detected" {
|
||
# Let caller handle this.
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Generic start command. Return 0 if we could start the program, -1
|
||
# if we could not.
|
||
#
|
||
# INFERIOR_ARGS is passed as arguments to the start command, so may contain
|
||
# inferior arguments.
|
||
#
|
||
# N.B. This function does not wait for gdb to return to the prompt,
|
||
# that is the caller's responsibility.
|
||
|
||
proc gdb_start_cmd { {inferior_args {}} } {
|
||
global gdb_prompt use_gdb_stub
|
||
|
||
foreach command [gdb_init_commands] {
|
||
send_gdb "$command\n"
|
||
gdb_expect 30 {
|
||
-re "$gdb_prompt $" { }
|
||
default {
|
||
perror "gdb_init_command for target failed"
|
||
return -1
|
||
}
|
||
}
|
||
}
|
||
|
||
if $use_gdb_stub {
|
||
return -1
|
||
}
|
||
|
||
send_gdb "start $inferior_args\n"
|
||
# Use -notransfer here so that test cases (like chng-sym.exp)
|
||
# may test for additional start-up messages.
|
||
gdb_expect 60 {
|
||
-re "The program .* has been started already.*y or n. $" {
|
||
send_gdb "y\n" answer
|
||
exp_continue
|
||
}
|
||
-notransfer -re "Starting program: \[^\r\n\]*" {
|
||
return 0
|
||
}
|
||
}
|
||
return -1
|
||
}
|
||
|
||
# Generic starti command. Return 0 if we could start the program, -1
|
||
# if we could not.
|
||
#
|
||
# INFERIOR_ARGS is passed as arguments to the starti command, so may contain
|
||
# inferior arguments.
|
||
#
|
||
# N.B. This function does not wait for gdb to return to the prompt,
|
||
# that is the caller's responsibility.
|
||
|
||
proc gdb_starti_cmd { {inferior_args {}} } {
|
||
global gdb_prompt use_gdb_stub
|
||
|
||
foreach command [gdb_init_commands] {
|
||
send_gdb "$command\n"
|
||
gdb_expect 30 {
|
||
-re "$gdb_prompt $" { }
|
||
default {
|
||
perror "gdb_init_command for target failed"
|
||
return -1
|
||
}
|
||
}
|
||
}
|
||
|
||
if $use_gdb_stub {
|
||
return -1
|
||
}
|
||
|
||
send_gdb "starti $inferior_args\n"
|
||
gdb_expect 60 {
|
||
-re "The program .* has been started already.*y or n. $" {
|
||
send_gdb "y\n" answer
|
||
exp_continue
|
||
}
|
||
-re "Starting program: \[^\r\n\]*" {
|
||
return 0
|
||
}
|
||
}
|
||
return -1
|
||
}
|
||
|
||
# Set a breakpoint using LINESPEC.
|
||
#
|
||
# If there is an additional argument it is a list of options; the supported
|
||
# options are allow-pending, temporary, message, no-message and qualified.
|
||
#
|
||
# The result is 1 for success, 0 for failure.
|
||
#
|
||
# Note: The handling of message vs no-message is messed up, but it's based
|
||
# on historical usage. By default this function does not print passes,
|
||
# only fails.
|
||
# no-message: turns off printing of fails (and passes, but they're already off)
|
||
# message: turns on printing of passes (and fails, but they're already on)
|
||
|
||
proc gdb_breakpoint { linespec args } {
|
||
global gdb_prompt
|
||
global decimal
|
||
|
||
set pending_response n
|
||
if {[lsearch -exact $args allow-pending] != -1} {
|
||
set pending_response y
|
||
}
|
||
|
||
set break_command "break"
|
||
set break_message "Breakpoint"
|
||
if {[lsearch -exact $args temporary] != -1} {
|
||
set break_command "tbreak"
|
||
set break_message "Temporary breakpoint"
|
||
}
|
||
|
||
if {[lsearch -exact $args qualified] != -1} {
|
||
append break_command " -qualified"
|
||
}
|
||
|
||
set print_pass 0
|
||
set print_fail 1
|
||
set no_message_loc [lsearch -exact $args no-message]
|
||
set message_loc [lsearch -exact $args message]
|
||
# The last one to appear in args wins.
|
||
if { $no_message_loc > $message_loc } {
|
||
set print_fail 0
|
||
} elseif { $message_loc > $no_message_loc } {
|
||
set print_pass 1
|
||
}
|
||
|
||
set test_name "gdb_breakpoint: set breakpoint at $linespec"
|
||
|
||
send_gdb "$break_command $linespec\n"
|
||
# The first two regexps are what we get with -g, the third is without -g.
|
||
gdb_expect 30 {
|
||
-re "$break_message \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
|
||
-re "$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
|
||
-re "$break_message \[0-9\]* at .*$gdb_prompt $" {}
|
||
-re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
|
||
if {$pending_response == "n"} {
|
||
if { $print_fail } {
|
||
fail $test_name
|
||
}
|
||
return 0
|
||
}
|
||
}
|
||
-re "Make breakpoint pending.*y or \\\[n\\\]. $" {
|
||
send_gdb "$pending_response\n"
|
||
exp_continue
|
||
}
|
||
-re "A problem internal to GDB has been detected" {
|
||
if { $print_fail } {
|
||
fail "$test_name (GDB internal error)"
|
||
}
|
||
gdb_internal_error_resync
|
||
return 0
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
if { $print_fail } {
|
||
fail $test_name
|
||
}
|
||
return 0
|
||
}
|
||
eof {
|
||
perror "GDB process no longer exists"
|
||
global gdb_spawn_id
|
||
set wait_status [wait -i $gdb_spawn_id]
|
||
verbose -log "GDB process exited with wait status $wait_status"
|
||
if { $print_fail } {
|
||
fail "$test_name (eof)"
|
||
}
|
||
return 0
|
||
}
|
||
timeout {
|
||
if { $print_fail } {
|
||
fail "$test_name (timeout)"
|
||
}
|
||
return 0
|
||
}
|
||
}
|
||
if { $print_pass } {
|
||
pass $test_name
|
||
}
|
||
return 1
|
||
}
|
||
|
||
# Set breakpoint at function and run gdb until it breaks there.
|
||
# Since this is the only breakpoint that will be set, if it stops
|
||
# at a breakpoint, we will assume it is the one we want. We can't
|
||
# just compare to "function" because it might be a fully qualified,
|
||
# single quoted C++ function specifier.
|
||
#
|
||
# If there are additional arguments, pass them to gdb_breakpoint.
|
||
# We recognize no-message/message ourselves.
|
||
#
|
||
# no-message is messed up here, like gdb_breakpoint: to preserve
|
||
# historical usage fails are always printed by default.
|
||
# no-message: turns off printing of fails (and passes, but they're already off)
|
||
# message: turns on printing of passes (and fails, but they're already on)
|
||
|
||
proc runto { linespec args } {
|
||
global gdb_prompt
|
||
global decimal
|
||
|
||
delete_breakpoints
|
||
|
||
set print_pass 0
|
||
set print_fail 1
|
||
set no_message_loc [lsearch -exact $args no-message]
|
||
set message_loc [lsearch -exact $args message]
|
||
# The last one to appear in args wins.
|
||
if { $no_message_loc > $message_loc } {
|
||
set print_fail 0
|
||
} elseif { $message_loc > $no_message_loc } {
|
||
set print_pass 1
|
||
}
|
||
|
||
set test_name "runto: run to $linespec"
|
||
|
||
# We need to use eval here to pass our varargs args to gdb_breakpoint
|
||
# which is also a varargs function.
|
||
# But we also have to be careful because $linespec may have multiple
|
||
# elements, and we don't want Tcl to move the remaining elements after
|
||
# the first to $args. That is why $linespec is wrapped in {}.
|
||
if ![eval gdb_breakpoint {$linespec} $args] {
|
||
return 0
|
||
}
|
||
|
||
gdb_run_cmd
|
||
|
||
# the "at foo.c:36" output we get with -g.
|
||
# the "in func" output we get without -g.
|
||
gdb_expect 30 {
|
||
-re "Break.* at .*:$decimal.*$gdb_prompt $" {
|
||
if { $print_pass } {
|
||
pass $test_name
|
||
}
|
||
return 1
|
||
}
|
||
-re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" {
|
||
if { $print_pass } {
|
||
pass $test_name
|
||
}
|
||
return 1
|
||
}
|
||
-re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" {
|
||
if { $print_fail } {
|
||
unsupported "non-stop mode not supported"
|
||
}
|
||
return 0
|
||
}
|
||
-re ".*A problem internal to GDB has been detected" {
|
||
# Always emit a FAIL if we encounter an internal error: internal
|
||
# errors are never expected.
|
||
fail "$test_name (GDB internal error)"
|
||
gdb_internal_error_resync
|
||
return 0
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
if { $print_fail } {
|
||
fail $test_name
|
||
}
|
||
return 0
|
||
}
|
||
eof {
|
||
if { $print_fail } {
|
||
fail "$test_name (eof)"
|
||
}
|
||
return 0
|
||
}
|
||
timeout {
|
||
if { $print_fail } {
|
||
fail "$test_name (timeout)"
|
||
}
|
||
return 0
|
||
}
|
||
}
|
||
if { $print_pass } {
|
||
pass $test_name
|
||
}
|
||
return 1
|
||
}
|
||
|
||
# Ask gdb to run until we hit a breakpoint at main.
|
||
#
|
||
# N.B. This function deletes all existing breakpoints.
|
||
# If you don't want that, use gdb_start_cmd.
|
||
|
||
proc runto_main { } {
|
||
return [runto main qualified]
|
||
}
|
||
|
||
### Continue, and expect to hit a breakpoint.
|
||
### Report a pass or fail, depending on whether it seems to have
|
||
### worked. Use NAME as part of the test name; each call to
|
||
### continue_to_breakpoint should use a NAME which is unique within
|
||
### that test file.
|
||
proc gdb_continue_to_breakpoint {name {location_pattern .*}} {
|
||
global gdb_prompt
|
||
set full_name "continue to breakpoint: $name"
|
||
|
||
set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
|
||
gdb_test_multiple "continue" $full_name {
|
||
-re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
|
||
pass $full_name
|
||
}
|
||
-re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
|
||
kfail "gdb/25038" $full_name
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
# gdb_internal_error_resync:
|
||
#
|
||
# Answer the questions GDB asks after it reports an internal error
|
||
# until we get back to a GDB prompt. Decline to quit the debugging
|
||
# session, and decline to create a core file. Return non-zero if the
|
||
# resync succeeds.
|
||
#
|
||
# This procedure just answers whatever questions come up until it sees
|
||
# a GDB prompt; it doesn't require you to have matched the input up to
|
||
# any specific point. However, it only answers questions it sees in
|
||
# the output itself, so if you've matched a question, you had better
|
||
# answer it yourself before calling this.
|
||
#
|
||
# You can use this function thus:
|
||
#
|
||
# gdb_expect {
|
||
# ...
|
||
# -re ".*A problem internal to GDB has been detected" {
|
||
# gdb_internal_error_resync
|
||
# }
|
||
# ...
|
||
# }
|
||
#
|
||
proc gdb_internal_error_resync {} {
|
||
global gdb_prompt
|
||
|
||
verbose -log "Resyncing due to internal error."
|
||
|
||
set count 0
|
||
while {$count < 10} {
|
||
gdb_expect {
|
||
-re "Recursive internal problem\\." {
|
||
perror "Could not resync from internal error (recursive internal problem)"
|
||
return 0
|
||
}
|
||
-re "Quit this debugging session\\? \\(y or n\\) $" {
|
||
send_gdb "n\n" answer
|
||
incr count
|
||
}
|
||
-re "Create a core file of GDB\\? \\(y or n\\) $" {
|
||
send_gdb "n\n" answer
|
||
incr count
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
# We're resynchronized.
|
||
return 1
|
||
}
|
||
timeout {
|
||
perror "Could not resync from internal error (timeout)"
|
||
return 0
|
||
}
|
||
eof {
|
||
perror "Could not resync from internal error (eof)"
|
||
return 0
|
||
}
|
||
}
|
||
}
|
||
perror "Could not resync from internal error (resync count exceeded)"
|
||
return 0
|
||
}
|
||
|
||
# Fill in the default prompt if PROMPT_REGEXP is empty.
|
||
proc fill_in_default_prompt {prompt_regexp} {
|
||
if { "$prompt_regexp" == "" } {
|
||
return "$::gdb_prompt $"
|
||
}
|
||
return $prompt_regexp
|
||
}
|
||
|
||
# gdb_test_multiple COMMAND MESSAGE [ -prompt PROMPT_REGEXP] [ -lbl ]
|
||
# EXPECT_ARGUMENTS
|
||
# Send a command to gdb; test the result.
|
||
#
|
||
# COMMAND is the command to execute, send to GDB with send_gdb. If
|
||
# this is the null string no command is sent.
|
||
# MESSAGE is a message to be printed with the built-in failure patterns
|
||
# if one of them matches. If MESSAGE is empty COMMAND will be used.
|
||
# -prompt PROMPT_REGEXP specifies a regexp matching the expected prompt
|
||
# after the command output. If empty, defaults to "$gdb_prompt $".
|
||
# -lbl specifies that line-by-line matching will be used.
|
||
# EXPECT_ARGUMENTS will be fed to expect in addition to the standard
|
||
# patterns. Pattern elements will be evaluated in the caller's
|
||
# context; action elements will be executed in the caller's context.
|
||
# Unlike patterns for gdb_test, these patterns should generally include
|
||
# the final newline and prompt.
|
||
#
|
||
# Returns:
|
||
# 1 if the test failed, according to a built-in failure pattern
|
||
# 0 if only user-supplied patterns matched
|
||
# -1 if there was an internal error.
|
||
#
|
||
# You can use this function thus:
|
||
#
|
||
# gdb_test_multiple "print foo" "test foo" {
|
||
# -re "expected output 1" {
|
||
# pass "test foo"
|
||
# }
|
||
# -re "expected output 2" {
|
||
# fail "test foo"
|
||
# }
|
||
# }
|
||
#
|
||
# Within action elements you can also make use of the variable
|
||
# gdb_test_name. This variable is setup automatically by
|
||
# gdb_test_multiple, and contains the value of MESSAGE. You can then
|
||
# write this, which is equivalent to the above:
|
||
#
|
||
# gdb_test_multiple "print foo" "test foo" {
|
||
# -re "expected output 1" {
|
||
# pass $gdb_test_name
|
||
# }
|
||
# -re "expected output 2" {
|
||
# fail $gdb_test_name
|
||
# }
|
||
# }
|
||
#
|
||
# Like with "expect", you can also specify the spawn id to match with
|
||
# -i "$id". Interesting spawn ids are $inferior_spawn_id and
|
||
# $gdb_spawn_id. The former matches inferior I/O, while the latter
|
||
# matches GDB I/O. E.g.:
|
||
#
|
||
# send_inferior "hello\n"
|
||
# gdb_test_multiple "continue" "test echo" {
|
||
# -i "$inferior_spawn_id" -re "^hello\r\nhello\r\n$" {
|
||
# pass "got echo"
|
||
# }
|
||
# -i "$gdb_spawn_id" -re "Breakpoint.*$gdb_prompt $" {
|
||
# fail "hit breakpoint"
|
||
# }
|
||
# }
|
||
#
|
||
# The standard patterns, such as "Inferior exited..." and "A problem
|
||
# ...", all being implicitly appended to that list. These are always
|
||
# expected from $gdb_spawn_id. IOW, callers do not need to worry
|
||
# about resetting "-i" back to $gdb_spawn_id explicitly.
|
||
#
|
||
# In EXPECT_ARGUMENTS we can use a -wrap pattern flag, that wraps the regexp
|
||
# pattern as gdb_test wraps its message argument.
|
||
# This allows us to rewrite:
|
||
# gdb_test <command> <pattern> <message>
|
||
# into:
|
||
# gdb_test_multiple <command> <message> {
|
||
# -re -wrap <pattern> {
|
||
# pass $gdb_test_name
|
||
# }
|
||
# }
|
||
#
|
||
# In EXPECT_ARGUMENTS, a pattern flag -early can be used. It makes sure the
|
||
# pattern is inserted before any implicit pattern added by gdb_test_multiple.
|
||
# Using this pattern flag, we can f.i. setup a kfail for an assertion failure
|
||
# <assert> during gdb_continue_to_breakpoint by the rewrite:
|
||
# gdb_continue_to_breakpoint <msg> <pattern>
|
||
# into:
|
||
# set breakpoint_pattern "(?:Breakpoint|Temporary breakpoint) .* (at|in)"
|
||
# gdb_test_multiple "continue" "continue to breakpoint: <msg>" {
|
||
# -early -re "internal-error: <assert>" {
|
||
# setup_kfail gdb/nnnnn "*-*-*"
|
||
# exp_continue
|
||
# }
|
||
# -re "$breakpoint_pattern <pattern>\r\n$gdb_prompt $" {
|
||
# pass $gdb_test_name
|
||
# }
|
||
# }
|
||
#
|
||
proc gdb_test_multiple { command message args } {
|
||
global verbose use_gdb_stub
|
||
global gdb_prompt pagination_prompt
|
||
global GDB
|
||
global gdb_spawn_id
|
||
global inferior_exited_re
|
||
upvar timeout timeout
|
||
upvar expect_out expect_out
|
||
global any_spawn_id
|
||
|
||
set line_by_line 0
|
||
set prompt_regexp ""
|
||
for {set i 0} {$i < [llength $args]} {incr i} {
|
||
set arg [lindex $args $i]
|
||
if { $arg == "-prompt" } {
|
||
incr i
|
||
set prompt_regexp [lindex $args $i]
|
||
} elseif { $arg == "-lbl" } {
|
||
set line_by_line 1
|
||
} else {
|
||
set user_code $arg
|
||
break
|
||
}
|
||
}
|
||
if { [expr $i + 1] < [llength $args] } {
|
||
error "Too many arguments to gdb_test_multiple"
|
||
} elseif { ![info exists user_code] } {
|
||
error "Too few arguments to gdb_test_multiple"
|
||
}
|
||
|
||
set prompt_regexp [fill_in_default_prompt $prompt_regexp]
|
||
|
||
if { $message == "" } {
|
||
set message $command
|
||
}
|
||
|
||
if [string match "*\[\r\n\]" $command] {
|
||
error "Invalid trailing newline in \"$message\" test"
|
||
}
|
||
|
||
if [string match "*\[\r\n\]*" $message] {
|
||
error "Invalid newline in \"$message\" test"
|
||
}
|
||
|
||
if {$use_gdb_stub
|
||
&& [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
|
||
$command]} {
|
||
error "gdbserver does not support $command without extended-remote"
|
||
}
|
||
|
||
# TCL/EXPECT WART ALERT
|
||
# Expect does something very strange when it receives a single braced
|
||
# argument. It splits it along word separators and performs substitutions.
|
||
# This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
|
||
# evaluated as "\[ab\]". But that's not how TCL normally works; inside a
|
||
# double-quoted list item, "\[ab\]" is just a long way of representing
|
||
# "[ab]", because the backslashes will be removed by lindex.
|
||
|
||
# Unfortunately, there appears to be no easy way to duplicate the splitting
|
||
# that expect will do from within TCL. And many places make use of the
|
||
# "\[0-9\]" construct, so we need to support that; and some places make use
|
||
# of the "[func]" construct, so we need to support that too. In order to
|
||
# get this right we have to substitute quoted list elements differently
|
||
# from braced list elements.
|
||
|
||
# We do this roughly the same way that Expect does it. We have to use two
|
||
# lists, because if we leave unquoted newlines in the argument to uplevel
|
||
# they'll be treated as command separators, and if we escape newlines
|
||
# we mangle newlines inside of command blocks. This assumes that the
|
||
# input doesn't contain a pattern which contains actual embedded newlines
|
||
# at this point!
|
||
|
||
regsub -all {\n} ${user_code} { } subst_code
|
||
set subst_code [uplevel list $subst_code]
|
||
|
||
set processed_code ""
|
||
set early_processed_code ""
|
||
# The variable current_list holds the name of the currently processed
|
||
# list, either processed_code or early_processed_code.
|
||
set current_list "processed_code"
|
||
set patterns ""
|
||
set expecting_action 0
|
||
set expecting_arg 0
|
||
set wrap_pattern 0
|
||
foreach item $user_code subst_item $subst_code {
|
||
if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
|
||
lappend $current_list $item
|
||
continue
|
||
}
|
||
if { $item == "-indices" || $item == "-re" || $item == "-ex" } {
|
||
lappend $current_list $item
|
||
continue
|
||
}
|
||
if { $item == "-early" } {
|
||
set current_list "early_processed_code"
|
||
continue
|
||
}
|
||
if { $item == "-timeout" || $item == "-i" } {
|
||
set expecting_arg 1
|
||
lappend $current_list $item
|
||
continue
|
||
}
|
||
if { $item == "-wrap" } {
|
||
set wrap_pattern 1
|
||
continue
|
||
}
|
||
if { $expecting_arg } {
|
||
set expecting_arg 0
|
||
lappend $current_list $subst_item
|
||
continue
|
||
}
|
||
if { $expecting_action } {
|
||
lappend $current_list "uplevel [list $item]"
|
||
set expecting_action 0
|
||
# Cosmetic, no effect on the list.
|
||
append $current_list "\n"
|
||
# End the effect of -early, it only applies to one action.
|
||
set current_list "processed_code"
|
||
continue
|
||
}
|
||
set expecting_action 1
|
||
if { $wrap_pattern } {
|
||
# Wrap subst_item as is done for the gdb_test PATTERN argument.
|
||
lappend $current_list \
|
||
"\[\r\n\]*(?:$subst_item)\[\r\n\]+$gdb_prompt $"
|
||
set wrap_pattern 0
|
||
} else {
|
||
lappend $current_list $subst_item
|
||
}
|
||
if {$patterns != ""} {
|
||
append patterns "; "
|
||
}
|
||
append patterns "\"$subst_item\""
|
||
}
|
||
|
||
# Also purely cosmetic.
|
||
regsub -all {\r} $patterns {\\r} patterns
|
||
regsub -all {\n} $patterns {\\n} patterns
|
||
|
||
if $verbose>2 then {
|
||
send_user "Sending \"$command\" to gdb\n"
|
||
send_user "Looking to match \"$patterns\"\n"
|
||
send_user "Message is \"$message\"\n"
|
||
}
|
||
|
||
set result -1
|
||
set string "${command}\n"
|
||
if { $command != "" } {
|
||
set multi_line_re "\[\r\n\] *>"
|
||
while { "$string" != "" } {
|
||
set foo [string first "\n" "$string"]
|
||
set len [string length "$string"]
|
||
if { $foo < [expr $len - 1] } {
|
||
set str [string range "$string" 0 $foo]
|
||
if { [send_gdb "$str"] != "" } {
|
||
perror "Couldn't send $command to GDB."
|
||
}
|
||
# since we're checking if each line of the multi-line
|
||
# command are 'accepted' by GDB here,
|
||
# we need to set -notransfer expect option so that
|
||
# command output is not lost for pattern matching
|
||
# - guo
|
||
gdb_expect 2 {
|
||
-notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
|
||
timeout { verbose "partial: timeout" 3 }
|
||
}
|
||
set string [string range "$string" [expr $foo + 1] end]
|
||
set multi_line_re "$multi_line_re.*\[\r\n\] *>"
|
||
} else {
|
||
break
|
||
}
|
||
}
|
||
if { "$string" != "" } {
|
||
if { [send_gdb "$string"] != "" } {
|
||
perror "Couldn't send $command to GDB."
|
||
}
|
||
}
|
||
}
|
||
|
||
set code $early_processed_code
|
||
append code {
|
||
-re ".*A problem internal to GDB has been detected" {
|
||
fail "$message (GDB internal error)"
|
||
gdb_internal_error_resync
|
||
set result -1
|
||
}
|
||
-re "\\*\\*\\* DOSEXIT code.*" {
|
||
if { $message != "" } {
|
||
fail "$message"
|
||
}
|
||
set result -1
|
||
}
|
||
}
|
||
append code $processed_code
|
||
|
||
# Reset the spawn id, in case the processed code used -i.
|
||
append code {
|
||
-i "$gdb_spawn_id"
|
||
}
|
||
|
||
append code {
|
||
-re "Ending remote debugging.*$prompt_regexp" {
|
||
if ![isnative] then {
|
||
warning "Can`t communicate to remote target."
|
||
}
|
||
gdb_exit
|
||
gdb_start
|
||
set result -1
|
||
}
|
||
-re "Undefined\[a-z\]* command:.*$prompt_regexp" {
|
||
perror "Undefined command \"$command\"."
|
||
fail "$message"
|
||
set result 1
|
||
}
|
||
-re "Ambiguous command.*$prompt_regexp" {
|
||
perror "\"$command\" is not a unique command name."
|
||
fail "$message"
|
||
set result 1
|
||
}
|
||
-re "$inferior_exited_re with code \[0-9\]+.*$prompt_regexp" {
|
||
if ![string match "" $message] then {
|
||
set errmsg "$message (the program exited)"
|
||
} else {
|
||
set errmsg "$command (the program exited)"
|
||
}
|
||
fail "$errmsg"
|
||
set result -1
|
||
}
|
||
-re "$inferior_exited_re normally.*$prompt_regexp" {
|
||
if ![string match "" $message] then {
|
||
set errmsg "$message (the program exited)"
|
||
} else {
|
||
set errmsg "$command (the program exited)"
|
||
}
|
||
fail "$errmsg"
|
||
set result -1
|
||
}
|
||
-re "The program is not being run.*$prompt_regexp" {
|
||
if ![string match "" $message] then {
|
||
set errmsg "$message (the program is no longer running)"
|
||
} else {
|
||
set errmsg "$command (the program is no longer running)"
|
||
}
|
||
fail "$errmsg"
|
||
set result -1
|
||
}
|
||
-re "\r\n$prompt_regexp" {
|
||
if ![string match "" $message] then {
|
||
fail "$message"
|
||
}
|
||
set result 1
|
||
}
|
||
-re "$pagination_prompt" {
|
||
send_gdb "\n"
|
||
perror "Window too small."
|
||
fail "$message"
|
||
set result -1
|
||
}
|
||
-re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
|
||
send_gdb "n\n" answer
|
||
gdb_expect -re "$prompt_regexp"
|
||
fail "$message (got interactive prompt)"
|
||
set result -1
|
||
}
|
||
-re "\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" {
|
||
send_gdb "0\n"
|
||
gdb_expect -re "$prompt_regexp"
|
||
fail "$message (got breakpoint menu)"
|
||
set result -1
|
||
}
|
||
|
||
-i $gdb_spawn_id
|
||
eof {
|
||
perror "GDB process no longer exists"
|
||
set wait_status [wait -i $gdb_spawn_id]
|
||
verbose -log "GDB process exited with wait status $wait_status"
|
||
if { $message != "" } {
|
||
fail "$message"
|
||
}
|
||
return -1
|
||
}
|
||
}
|
||
|
||
if {$line_by_line} {
|
||
append code {
|
||
-re "\r\n\[^\r\n\]*(?=\r\n)" {
|
||
exp_continue
|
||
}
|
||
}
|
||
}
|
||
|
||
# Now patterns that apply to any spawn id specified.
|
||
append code {
|
||
-i $any_spawn_id
|
||
eof {
|
||
perror "Process no longer exists"
|
||
if { $message != "" } {
|
||
fail "$message"
|
||
}
|
||
return -1
|
||
}
|
||
full_buffer {
|
||
perror "internal buffer is full."
|
||
fail "$message"
|
||
set result -1
|
||
}
|
||
timeout {
|
||
if ![string match "" $message] then {
|
||
fail "$message (timeout)"
|
||
}
|
||
set result 1
|
||
}
|
||
}
|
||
|
||
# remote_expect calls the eof section if there is an error on the
|
||
# expect call. We already have eof sections above, and we don't
|
||
# want them to get called in that situation. Since the last eof
|
||
# section becomes the error section, here we define another eof
|
||
# section, but with an empty spawn_id list, so that it won't ever
|
||
# match.
|
||
append code {
|
||
-i "" eof {
|
||
# This comment is here because the eof section must not be
|
||
# the empty string, otherwise remote_expect won't realize
|
||
# it exists.
|
||
}
|
||
}
|
||
|
||
# Create gdb_test_name in the parent scope. If this variable
|
||
# already exists, which it might if we have nested calls to
|
||
# gdb_test_multiple, then preserve the old value, otherwise,
|
||
# create a new variable in the parent scope.
|
||
upvar gdb_test_name gdb_test_name
|
||
if { [info exists gdb_test_name] } {
|
||
set gdb_test_name_old "$gdb_test_name"
|
||
}
|
||
set gdb_test_name "$message"
|
||
|
||
set result 0
|
||
set code [catch {gdb_expect $code} string]
|
||
|
||
# Clean up the gdb_test_name variable. If we had a
|
||
# previous value then restore it, otherwise, delete the variable
|
||
# from the parent scope.
|
||
if { [info exists gdb_test_name_old] } {
|
||
set gdb_test_name "$gdb_test_name_old"
|
||
} else {
|
||
unset gdb_test_name
|
||
}
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
|
||
} elseif {$code > 1} {
|
||
return -code $code $string
|
||
}
|
||
return $result
|
||
}
|
||
|
||
# Usage: gdb_test_multiline NAME INPUT RESULT {INPUT RESULT} ...
|
||
# Run a test named NAME, consisting of multiple lines of input.
|
||
# After each input line INPUT, search for result line RESULT.
|
||
# Succeed if all results are seen; fail otherwise.
|
||
|
||
proc gdb_test_multiline { name args } {
|
||
global gdb_prompt
|
||
set inputnr 0
|
||
foreach {input result} $args {
|
||
incr inputnr
|
||
if {[gdb_test_multiple $input "$name: input $inputnr: $input" {
|
||
-re "\[\r\n\]*($result)\[\r\n\]+($gdb_prompt | *>)$" {
|
||
pass $gdb_test_name
|
||
}
|
||
}]} {
|
||
return 1
|
||
}
|
||
}
|
||
return 0
|
||
}
|
||
|
||
|
||
# gdb_test [-prompt PROMPT_REGEXP] [-lbl]
|
||
# COMMAND [PATTERN] [MESSAGE] [QUESTION RESPONSE]
|
||
# Send a command to gdb; test the result.
|
||
#
|
||
# COMMAND is the command to execute, send to GDB with send_gdb. If
|
||
# this is the null string no command is sent.
|
||
# PATTERN is the pattern to match for a PASS, and must NOT include
|
||
# the \r\n sequence immediately before the gdb prompt. This argument
|
||
# may be omitted to just match the prompt, ignoring whatever output
|
||
# precedes it.
|
||
# MESSAGE is an optional message to be printed. If this is
|
||
# omitted, then the pass/fail messages use the command string as the
|
||
# message. (If this is the empty string, then sometimes we don't
|
||
# call pass or fail at all; I don't understand this at all.)
|
||
# QUESTION is a question GDB should ask in response to COMMAND, like
|
||
# "are you sure?" If this is specified, the test fails if GDB
|
||
# doesn't print the question.
|
||
# RESPONSE is the response to send when QUESTION appears.
|
||
#
|
||
# -prompt PROMPT_REGEXP specifies a regexp matching the expected prompt
|
||
# after the command output. If empty, defaults to "$gdb_prompt $".
|
||
# -lbl specifies that line-by-line matching will be used.
|
||
# -nopass specifies that a PASS should not be issued.
|
||
#
|
||
# Returns:
|
||
# 1 if the test failed,
|
||
# 0 if the test passes,
|
||
# -1 if there was an internal error.
|
||
#
|
||
proc gdb_test { args } {
|
||
global gdb_prompt
|
||
upvar timeout timeout
|
||
|
||
parse_args {
|
||
{prompt ""}
|
||
{lbl}
|
||
{nopass}
|
||
}
|
||
|
||
lassign $args command pattern message question response
|
||
|
||
# Can't have a question without a response.
|
||
if { $question != "" && $response == "" || [llength $args] > 5 } {
|
||
error "Unexpected arguments: $args"
|
||
}
|
||
|
||
if { $message == "" } {
|
||
set message $command
|
||
}
|
||
|
||
set prompt [fill_in_default_prompt $prompt]
|
||
|
||
set saw_question 0
|
||
|
||
set user_code {}
|
||
lappend user_code {
|
||
-re "\[\r\n\]*(?:$pattern)\[\r\n\]+$prompt" {
|
||
if { $question != "" & !$saw_question} {
|
||
fail $message
|
||
} elseif {!$nopass} {
|
||
pass $message
|
||
}
|
||
}
|
||
}
|
||
|
||
if { $question != "" } {
|
||
lappend user_code {
|
||
-re "$question$" {
|
||
set saw_question 1
|
||
send_gdb "$response\n"
|
||
exp_continue
|
||
}
|
||
}
|
||
}
|
||
|
||
set user_code [join $user_code]
|
||
|
||
set opts {}
|
||
lappend opts "-prompt" "$prompt"
|
||
if {$lbl} {
|
||
lappend opts "-lbl"
|
||
}
|
||
|
||
return [gdb_test_multiple $command $message {*}$opts $user_code]
|
||
}
|
||
|
||
# Return 1 if version MAJOR.MINOR is at least AT_LEAST_MAJOR.AT_LEAST_MINOR.
|
||
proc version_at_least { major minor at_least_major at_least_minor} {
|
||
if { $major > $at_least_major } {
|
||
return 1
|
||
} elseif { $major == $at_least_major \
|
||
&& $minor >= $at_least_minor } {
|
||
return 1
|
||
} else {
|
||
return 0
|
||
}
|
||
}
|
||
|
||
# Return 1 if tcl version used is at least MAJOR.MINOR
|
||
proc tcl_version_at_least { major minor } {
|
||
global tcl_version
|
||
regexp {^([0-9]+)\.([0-9]+)$} $tcl_version \
|
||
dummy tcl_version_major tcl_version_minor
|
||
return [version_at_least $tcl_version_major $tcl_version_minor \
|
||
$major $minor]
|
||
}
|
||
|
||
if { [tcl_version_at_least 8 5] == 0 } {
|
||
# lrepeat was added in tcl 8.5. Only add if missing.
|
||
proc lrepeat { n element } {
|
||
if { [string is integer -strict $n] == 0 } {
|
||
error "expected integer but got \"$n\""
|
||
}
|
||
if { $n < 0 } {
|
||
error "bad count \"$n\": must be integer >= 0"
|
||
}
|
||
set res [list]
|
||
for {set i 0} {$i < $n} {incr i} {
|
||
lappend res $element
|
||
}
|
||
return $res
|
||
}
|
||
}
|
||
|
||
# gdb_test_no_output [-prompt PROMPT_REGEXP] [-nopass] COMMAND [MESSAGE]
|
||
# Send a command to GDB and verify that this command generated no output.
|
||
#
|
||
# See gdb_test for a description of the -prompt, -nopass, COMMAND, and
|
||
# MESSAGE parameters.
|
||
|
||
proc gdb_test_no_output { args } {
|
||
global gdb_prompt
|
||
|
||
parse_args {
|
||
{prompt_re ""}
|
||
{nopass}
|
||
}
|
||
|
||
lassign $args command message
|
||
|
||
set prompt_re [fill_in_default_prompt $prompt_re]
|
||
|
||
set command_regex [string_to_regexp $command]
|
||
gdb_test_multiple $command $message -prompt $prompt_re {
|
||
-re "^$command_regex\r\n$prompt_re" {
|
||
if {!$nopass} {
|
||
pass $gdb_test_name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# Send a command and then wait for a sequence of outputs.
|
||
# This is useful when the sequence is long and contains ".*", a single
|
||
# regexp to match the entire output can get a timeout much easier.
|
||
#
|
||
# COMMAND is the command to execute, send to GDB with send_gdb. If
|
||
# this is the null string no command is sent.
|
||
# TEST_NAME is passed to pass/fail. COMMAND is used if TEST_NAME is "".
|
||
# EXPECTED_OUTPUT_LIST is a list of regexps of expected output, which are
|
||
# processed in order, and all must be present in the output.
|
||
#
|
||
# The -prompt switch can be used to override the prompt expected at the end of
|
||
# the output sequence.
|
||
#
|
||
# It is unnecessary to specify ".*" at the beginning or end of any regexp,
|
||
# there is an implicit ".*" between each element of EXPECTED_OUTPUT_LIST.
|
||
# There is also an implicit ".*" between the last regexp and the gdb prompt.
|
||
#
|
||
# Like gdb_test and gdb_test_multiple, the output is expected to end with the
|
||
# gdb prompt, which must not be specified in EXPECTED_OUTPUT_LIST.
|
||
#
|
||
# Returns:
|
||
# 1 if the test failed,
|
||
# 0 if the test passes,
|
||
# -1 if there was an internal error.
|
||
|
||
proc gdb_test_sequence { args } {
|
||
global gdb_prompt
|
||
|
||
parse_args {{prompt ""}}
|
||
|
||
if { $prompt == "" } {
|
||
set prompt "$gdb_prompt $"
|
||
}
|
||
|
||
if { [llength $args] != 3 } {
|
||
error "Unexpected # of arguments, expecting: COMMAND TEST_NAME EXPECTED_OUTPUT_LIST"
|
||
}
|
||
|
||
lassign $args command test_name expected_output_list
|
||
|
||
if { $test_name == "" } {
|
||
set test_name $command
|
||
}
|
||
|
||
lappend expected_output_list ""; # implicit ".*" before gdb prompt
|
||
|
||
if { $command != "" } {
|
||
send_gdb "$command\n"
|
||
}
|
||
|
||
return [gdb_expect_list $test_name $prompt $expected_output_list]
|
||
}
|
||
|
||
|
||
# Match output of COMMAND using RE. Read output line-by-line.
|
||
# Report pass/fail with MESSAGE.
|
||
# For a command foo with output:
|
||
# (gdb) foo^M
|
||
# <line1>^M
|
||
# <line2>^M
|
||
# (gdb)
|
||
# the portion matched using RE is:
|
||
# '<line1>^M
|
||
# <line2>^M
|
||
# '
|
||
#
|
||
# Optionally, additional -re-not <regexp> arguments can be specified, to
|
||
# ensure that a regexp is not match by the COMMAND output.
|
||
# Such an additional argument generates an additional PASS/FAIL of the form:
|
||
# PASS: test-case.exp: $message: pattern not matched: <regexp>
|
||
|
||
proc gdb_test_lines { command message re args } {
|
||
set re_not [list]
|
||
|
||
for {set i 0} {$i < [llength $args]} {incr i} {
|
||
set arg [lindex $args $i]
|
||
if { $arg == "-re-not" } {
|
||
incr i
|
||
if { [llength $args] == $i } {
|
||
error "Missing argument for -re-not"
|
||
break
|
||
}
|
||
set arg [lindex $args $i]
|
||
lappend re_not $arg
|
||
} else {
|
||
error "Unhandled argument: $arg"
|
||
}
|
||
}
|
||
|
||
if { $message == ""} {
|
||
set message $command
|
||
}
|
||
|
||
set lines ""
|
||
gdb_test_multiple $command $message {
|
||
-re "\r\n(\[^\r\n\]*)(?=\r\n)" {
|
||
set line $expect_out(1,string)
|
||
if { $lines eq "" } {
|
||
append lines "$line"
|
||
} else {
|
||
append lines "\r\n$line"
|
||
}
|
||
exp_continue
|
||
}
|
||
-re -wrap "" {
|
||
append lines "\r\n"
|
||
}
|
||
}
|
||
|
||
gdb_assert { [regexp $re $lines] } $message
|
||
|
||
foreach re $re_not {
|
||
gdb_assert { ![regexp $re $lines] } "$message: pattern not matched: $re"
|
||
}
|
||
}
|
||
|
||
# Test that a command gives an error. For pass or fail, return
|
||
# a 1 to indicate that more tests can proceed. However a timeout
|
||
# is a serious error, generates a special fail message, and causes
|
||
# a 0 to be returned to indicate that more tests are likely to fail
|
||
# as well.
|
||
|
||
proc test_print_reject { args } {
|
||
global gdb_prompt
|
||
global verbose
|
||
|
||
if [llength $args]==2 then {
|
||
set expectthis [lindex $args 1]
|
||
} else {
|
||
set expectthis "should never match this bogus string"
|
||
}
|
||
set sendthis [lindex $args 0]
|
||
if $verbose>2 then {
|
||
send_user "Sending \"$sendthis\" to gdb\n"
|
||
send_user "Looking to match \"$expectthis\"\n"
|
||
}
|
||
send_gdb "$sendthis\n"
|
||
#FIXME: Should add timeout as parameter.
|
||
gdb_expect {
|
||
-re "A .* in expression.*\\.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "Invalid syntax in expression.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "Junk after end of expression.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "Invalid number.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "Invalid character constant.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "No symbol table is loaded.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "No symbol .* in current context.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "Unmatched single quote.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "A character constant must contain at least one character.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re "$expectthis.*$gdb_prompt $" {
|
||
pass "reject $sendthis"
|
||
return 1
|
||
}
|
||
-re ".*$gdb_prompt $" {
|
||
fail "reject $sendthis"
|
||
return 1
|
||
}
|
||
default {
|
||
fail "reject $sendthis (eof or timeout)"
|
||
return 0
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
# Same as gdb_test, but the second parameter is not a regexp,
|
||
# but a string that must match exactly.
|
||
|
||
proc gdb_test_exact { args } {
|
||
upvar timeout timeout
|
||
|
||
set command [lindex $args 0]
|
||
|
||
# This applies a special meaning to a null string pattern. Without
|
||
# this, "$pattern\r\n$gdb_prompt $" will match anything, including error
|
||
# messages from commands that should have no output except a new
|
||
# prompt. With this, only results of a null string will match a null
|
||
# string pattern.
|
||
|
||
set pattern [lindex $args 1]
|
||
if [string match $pattern ""] {
|
||
set pattern [string_to_regexp [lindex $args 0]]
|
||
} else {
|
||
set pattern [string_to_regexp [lindex $args 1]]
|
||
}
|
||
|
||
# It is most natural to write the pattern argument with only
|
||
# embedded \n's, especially if you are trying to avoid Tcl quoting
|
||
# problems. But gdb_expect really wants to see \r\n in patterns. So
|
||
# transform the pattern here. First transform \r\n back to \n, in
|
||
# case some users of gdb_test_exact already do the right thing.
|
||
regsub -all "\r\n" $pattern "\n" pattern
|
||
regsub -all "\n" $pattern "\r\n" pattern
|
||
if [llength $args]==3 then {
|
||
set message [lindex $args 2]
|
||
return [gdb_test $command $pattern $message]
|
||
}
|
||
|
||
return [gdb_test $command $pattern]
|
||
}
|
||
|
||
# Wrapper around gdb_test_multiple that looks for a list of expected
|
||
# output elements, but which can appear in any order.
|
||
# CMD is the gdb command.
|
||
# NAME is the name of the test.
|
||
# ELM_FIND_REGEXP specifies how to partition the output into elements to
|
||
# compare.
|
||
# ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare.
|
||
# RESULT_MATCH_LIST is a list of exact matches for each expected element.
|
||
# All elements of RESULT_MATCH_LIST must appear for the test to pass.
|
||
#
|
||
# A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line
|
||
# of text per element and then strip trailing \r\n's.
|
||
# Example:
|
||
# gdb_test_list_exact "foo" "bar" \
|
||
# "\[^\r\n\]+\[\r\n\]+" \
|
||
# "\[^\r\n\]+" \
|
||
# { \
|
||
# {expected result 1} \
|
||
# {expected result 2} \
|
||
# }
|
||
|
||
proc gdb_test_list_exact { cmd name elm_find_regexp elm_extract_regexp result_match_list } {
|
||
global gdb_prompt
|
||
|
||
set matches [lsort $result_match_list]
|
||
set seen {}
|
||
gdb_test_multiple $cmd $name {
|
||
"$cmd\[\r\n\]" { exp_continue }
|
||
-re $elm_find_regexp {
|
||
set str $expect_out(0,string)
|
||
verbose -log "seen: $str" 3
|
||
regexp -- $elm_extract_regexp $str elm_seen
|
||
verbose -log "extracted: $elm_seen" 3
|
||
lappend seen $elm_seen
|
||
exp_continue
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
set failed ""
|
||
foreach got [lsort $seen] have $matches {
|
||
if {![string equal $got $have]} {
|
||
set failed $have
|
||
break
|
||
}
|
||
}
|
||
if {[string length $failed] != 0} {
|
||
fail "$name ($failed not found)"
|
||
} else {
|
||
pass $name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# gdb_test_stdio COMMAND INFERIOR_PATTERN GDB_PATTERN MESSAGE
|
||
# Send a command to gdb; expect inferior and gdb output.
|
||
#
|
||
# See gdb_test_multiple for a description of the COMMAND and MESSAGE
|
||
# parameters.
|
||
#
|
||
# INFERIOR_PATTERN is the pattern to match against inferior output.
|
||
#
|
||
# GDB_PATTERN is the pattern to match against gdb output, and must NOT
|
||
# include the \r\n sequence immediately before the gdb prompt, nor the
|
||
# prompt. The default is empty.
|
||
#
|
||
# Both inferior and gdb patterns must match for a PASS.
|
||
#
|
||
# If MESSAGE is ommitted, then COMMAND will be used as the message.
|
||
#
|
||
# Returns:
|
||
# 1 if the test failed,
|
||
# 0 if the test passes,
|
||
# -1 if there was an internal error.
|
||
#
|
||
|
||
proc gdb_test_stdio {command inferior_pattern {gdb_pattern ""} {message ""}} {
|
||
global inferior_spawn_id gdb_spawn_id
|
||
global gdb_prompt
|
||
|
||
if {$message == ""} {
|
||
set message $command
|
||
}
|
||
|
||
set inferior_matched 0
|
||
set gdb_matched 0
|
||
|
||
# Use an indirect spawn id list, and remove the inferior spawn id
|
||
# from the expected output as soon as it matches, in case
|
||
# $inferior_pattern happens to be a prefix of the resulting full
|
||
# gdb pattern below (e.g., "\r\n").
|
||
global gdb_test_stdio_spawn_id_list
|
||
set gdb_test_stdio_spawn_id_list "$inferior_spawn_id"
|
||
|
||
# Note that if $inferior_spawn_id and $gdb_spawn_id are different,
|
||
# then we may see gdb's output arriving before the inferior's
|
||
# output.
|
||
set res [gdb_test_multiple $command $message {
|
||
-i gdb_test_stdio_spawn_id_list -re "$inferior_pattern" {
|
||
set inferior_matched 1
|
||
if {!$gdb_matched} {
|
||
set gdb_test_stdio_spawn_id_list ""
|
||
exp_continue
|
||
}
|
||
}
|
||
-i $gdb_spawn_id -re "$gdb_pattern\r\n$gdb_prompt $" {
|
||
set gdb_matched 1
|
||
if {!$inferior_matched} {
|
||
exp_continue
|
||
}
|
||
}
|
||
}]
|
||
if {$res == 0} {
|
||
pass $message
|
||
} else {
|
||
verbose -log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched"
|
||
}
|
||
return $res
|
||
}
|
||
|
||
# Wrapper around gdb_test_multiple to be used when testing expression
|
||
# evaluation while 'set debug expression 1' is in effect.
|
||
# Looks for some patterns that indicates the expression was rejected.
|
||
#
|
||
# CMD is the command to execute, which should include an expression
|
||
# that GDB will need to parse.
|
||
#
|
||
# OUTPUT is the expected output pattern.
|
||
#
|
||
# TESTNAME is the name to be used for the test, defaults to CMD if not
|
||
# given.
|
||
proc gdb_test_debug_expr { cmd output {testname "" }} {
|
||
global gdb_prompt
|
||
|
||
if { ${testname} == "" } {
|
||
set testname $cmd
|
||
}
|
||
|
||
gdb_test_multiple $cmd $testname {
|
||
-re ".*Invalid expression.*\r\n$gdb_prompt $" {
|
||
fail $gdb_test_name
|
||
}
|
||
-re ".*\[\r\n\]$output\r\n$gdb_prompt $" {
|
||
pass $gdb_test_name
|
||
}
|
||
}
|
||
}
|
||
|
||
# get_print_expr_at_depths EXP OUTPUTS
|
||
#
|
||
# Used for testing 'set print max-depth'. Prints the expression EXP
|
||
# with 'set print max-depth' set to various depths. OUTPUTS is a list
|
||
# of `n` different patterns to match at each of the depths from 0 to
|
||
# (`n` - 1).
|
||
#
|
||
# This proc does one final check with the max-depth set to 'unlimited'
|
||
# which is tested against the last pattern in the OUTPUTS list. The
|
||
# OUTPUTS list is therefore required to match every depth from 0 to a
|
||
# depth where the whole of EXP is printed with no ellipsis.
|
||
#
|
||
# This proc leaves the 'set print max-depth' set to 'unlimited'.
|
||
proc gdb_print_expr_at_depths {exp outputs} {
|
||
for { set depth 0 } { $depth <= [llength $outputs] } { incr depth } {
|
||
if { $depth == [llength $outputs] } {
|
||
set expected_result [lindex $outputs [expr [llength $outputs] - 1]]
|
||
set depth_string "unlimited"
|
||
} else {
|
||
set expected_result [lindex $outputs $depth]
|
||
set depth_string $depth
|
||
}
|
||
|
||
with_test_prefix "exp='$exp': depth=${depth_string}" {
|
||
gdb_test_no_output "set print max-depth ${depth_string}"
|
||
gdb_test "p $exp" "$expected_result"
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
# Issue a PASS and return true if evaluating CONDITION in the caller's
|
||
# frame returns true, and issue a FAIL and return false otherwise.
|
||
# MESSAGE is the pass/fail message to be printed. If MESSAGE is
|
||
# omitted or is empty, then the pass/fail messages use the condition
|
||
# string as the message.
|
||
|
||
proc gdb_assert { condition {message ""} } {
|
||
if { $message == ""} {
|
||
set message $condition
|
||
}
|
||
|
||
set code [catch {uplevel 1 expr $condition} res]
|
||
if {$code == 1} {
|
||
# If code is 1 (TCL_ERROR), it means evaluation failed and res contains
|
||
# an error message. Print the error message, and set res to 0 since we
|
||
# want to return a boolean.
|
||
warning "While evaluating expression in gdb_assert: $res"
|
||
unresolved $message
|
||
set res 0
|
||
} elseif { !$res } {
|
||
fail $message
|
||
} else {
|
||
pass $message
|
||
}
|
||
return $res
|
||
}
|
||
|
||
proc gdb_reinitialize_dir { subdir } {
|
||
global gdb_prompt
|
||
|
||
if [is_remote host] {
|
||
return ""
|
||
}
|
||
send_gdb "dir\n"
|
||
gdb_expect 60 {
|
||
-re "Reinitialize source path to empty.*y or n. " {
|
||
send_gdb "y\n" answer
|
||
gdb_expect 60 {
|
||
-re "Source directories searched.*$gdb_prompt $" {
|
||
send_gdb "dir $subdir\n"
|
||
gdb_expect 60 {
|
||
-re "Source directories searched.*$gdb_prompt $" {
|
||
verbose "Dir set to $subdir"
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
perror "Dir \"$subdir\" failed."
|
||
}
|
||
}
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
perror "Dir \"$subdir\" failed."
|
||
}
|
||
}
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
perror "Dir \"$subdir\" failed."
|
||
}
|
||
}
|
||
}
|
||
|
||
#
|
||
# gdb_exit -- exit the GDB, killing the target program if necessary
|
||
#
|
||
proc default_gdb_exit {} {
|
||
global GDB
|
||
global INTERNAL_GDBFLAGS GDBFLAGS
|
||
global gdb_spawn_id inferior_spawn_id
|
||
global inotify_log_file
|
||
|
||
if ![info exists gdb_spawn_id] {
|
||
return
|
||
}
|
||
|
||
verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
|
||
|
||
if {[info exists inotify_log_file] && [file exists $inotify_log_file]} {
|
||
set fd [open $inotify_log_file]
|
||
set data [read -nonewline $fd]
|
||
close $fd
|
||
|
||
if {[string compare $data ""] != 0} {
|
||
warning "parallel-unsafe file creations noticed"
|
||
|
||
# Clear the log.
|
||
set fd [open $inotify_log_file w]
|
||
close $fd
|
||
}
|
||
}
|
||
|
||
if { [is_remote host] && [board_info host exists fileid] } {
|
||
send_gdb "quit\n"
|
||
gdb_expect 10 {
|
||
-re "y or n" {
|
||
send_gdb "y\n" answer
|
||
exp_continue
|
||
}
|
||
-re "DOSEXIT code" { }
|
||
default { }
|
||
}
|
||
}
|
||
|
||
if ![is_remote host] {
|
||
remote_close host
|
||
}
|
||
unset gdb_spawn_id
|
||
unset ::gdb_tty_name
|
||
unset inferior_spawn_id
|
||
}
|
||
|
||
# Load a file into the debugger.
|
||
# The return value is 0 for success, -1 for failure.
|
||
#
|
||
# This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
|
||
# to one of these values:
|
||
#
|
||
# debug file was loaded successfully and has debug information
|
||
# nodebug file was loaded successfully and has no debug information
|
||
# lzma file was loaded, .gnu_debugdata found, but no LZMA support
|
||
# compiled in
|
||
# fail file was not loaded
|
||
#
|
||
# This procedure also set the global variable GDB_FILE_CMD_MSG to the
|
||
# output of the file command in case of success.
|
||
#
|
||
# I tried returning this information as part of the return value,
|
||
# but ran into a mess because of the many re-implementations of
|
||
# gdb_load in config/*.exp.
|
||
#
|
||
# TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
|
||
# this if they can get more information set.
|
||
|
||
proc gdb_file_cmd { arg } {
|
||
global gdb_prompt
|
||
global GDB
|
||
global last_loaded_file
|
||
|
||
# GCC for Windows target may create foo.exe given "-o foo".
|
||
if { ![file exists $arg] && [file exists "$arg.exe"] } {
|
||
set arg "$arg.exe"
|
||
}
|
||
|
||
# Save this for the benefit of gdbserver-support.exp.
|
||
set last_loaded_file $arg
|
||
|
||
# Set whether debug info was found.
|
||
# Default to "fail".
|
||
global gdb_file_cmd_debug_info gdb_file_cmd_msg
|
||
set gdb_file_cmd_debug_info "fail"
|
||
|
||
if [is_remote host] {
|
||
set arg [remote_download host $arg]
|
||
if { $arg == "" } {
|
||
perror "download failed"
|
||
return -1
|
||
}
|
||
}
|
||
|
||
# The file command used to kill the remote target. For the benefit
|
||
# of the testsuite, preserve this behavior. Mark as optional so it doesn't
|
||
# get written to the stdin log.
|
||
send_gdb "kill\n" optional
|
||
gdb_expect 120 {
|
||
-re "Kill the program being debugged. .y or n. $" {
|
||
send_gdb "y\n" answer
|
||
verbose "\t\tKilling previous program being debugged"
|
||
exp_continue
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
# OK.
|
||
}
|
||
}
|
||
|
||
send_gdb "file $arg\n"
|
||
set new_symbol_table 0
|
||
set basename [file tail $arg]
|
||
gdb_expect 120 {
|
||
-re "(Reading symbols from.*LZMA support was disabled.*$gdb_prompt $)" {
|
||
verbose "\t\tLoaded $arg into $GDB; .gnu_debugdata found but no LZMA available"
|
||
set gdb_file_cmd_msg $expect_out(1,string)
|
||
set gdb_file_cmd_debug_info "lzma"
|
||
return 0
|
||
}
|
||
-re "(Reading symbols from.*no debugging symbols found.*$gdb_prompt $)" {
|
||
verbose "\t\tLoaded $arg into $GDB with no debugging symbols"
|
||
set gdb_file_cmd_msg $expect_out(1,string)
|
||
set gdb_file_cmd_debug_info "nodebug"
|
||
return 0
|
||
}
|
||
-re "(Reading symbols from.*$gdb_prompt $)" {
|
||
verbose "\t\tLoaded $arg into $GDB"
|
||
set gdb_file_cmd_msg $expect_out(1,string)
|
||
set gdb_file_cmd_debug_info "debug"
|
||
return 0
|
||
}
|
||
-re "Load new symbol table from \".*\".*y or n. $" {
|
||
if { $new_symbol_table > 0 } {
|
||
perror [join [list "Couldn't load $basename,"
|
||
"interactive prompt loop detected."]]
|
||
return -1
|
||
}
|
||
send_gdb "y\n" answer
|
||
incr new_symbol_table
|
||
set suffix "-- with new symbol table"
|
||
set arg "$arg $suffix"
|
||
set basename "$basename $suffix"
|
||
exp_continue
|
||
}
|
||
-re "No such file or directory.*$gdb_prompt $" {
|
||
perror "($basename) No such file or directory"
|
||
return -1
|
||
}
|
||
-re "A problem internal to GDB has been detected" {
|
||
perror "Couldn't load $basename into GDB (GDB internal error)."
|
||
gdb_internal_error_resync
|
||
return -1
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
perror "Couldn't load $basename into GDB."
|
||
return -1
|
||
}
|
||
timeout {
|
||
perror "Couldn't load $basename into GDB (timeout)."
|
||
return -1
|
||
}
|
||
eof {
|
||
# This is an attempt to detect a core dump, but seems not to
|
||
# work. Perhaps we need to match .* followed by eof, in which
|
||
# gdb_expect does not seem to have a way to do that.
|
||
perror "Couldn't load $basename into GDB (eof)."
|
||
return -1
|
||
}
|
||
}
|
||
}
|
||
|
||
# The expect "spawn" function puts the tty name into the spawn_out
|
||
# array; but dejagnu doesn't export this globally. So, we have to
|
||
# wrap spawn with our own function and poke in the built-in spawn
|
||
# so that we can capture this value.
|
||
#
|
||
# If available, the TTY name is saved to the LAST_SPAWN_TTY_NAME global.
|
||
# Otherwise, LAST_SPAWN_TTY_NAME is unset.
|
||
|
||
proc spawn_capture_tty_name { args } {
|
||
set result [uplevel builtin_spawn $args]
|
||
upvar spawn_out spawn_out
|
||
if { [info exists spawn_out(slave,name)] } {
|
||
set ::last_spawn_tty_name $spawn_out(slave,name)
|
||
} else {
|
||
# If a process is spawned as part of a pipe line (e.g. passing
|
||
# -leaveopen to the spawn proc) then the spawned process is no
|
||
# assigned a tty and spawn_out(slave,name) will not be set.
|
||
# In that case we want to ensure that last_spawn_tty_name is
|
||
# not set.
|
||
#
|
||
# If the previous process spawned was also not assigned a tty
|
||
# (e.g. multiple processed chained in a pipeline) then
|
||
# last_spawn_tty_name will already be unset, so, if we don't
|
||
# use -nocomplain here we would otherwise get an error.
|
||
unset -nocomplain ::last_spawn_tty_name
|
||
}
|
||
return $result
|
||
}
|
||
|
||
rename spawn builtin_spawn
|
||
rename spawn_capture_tty_name spawn
|
||
|
||
# Default gdb_spawn procedure.
|
||
|
||
proc default_gdb_spawn { } {
|
||
global use_gdb_stub
|
||
global GDB
|
||
global INTERNAL_GDBFLAGS GDBFLAGS
|
||
global gdb_spawn_id
|
||
|
||
# Set the default value, it may be overriden later by specific testfile.
|
||
#
|
||
# Use `set_board_info use_gdb_stub' for the board file to flag the inferior
|
||
# is already started after connecting and run/attach are not supported.
|
||
# This is used for the "remote" protocol. After GDB starts you should
|
||
# check global $use_gdb_stub instead of the board as the testfile may force
|
||
# a specific different target protocol itself.
|
||
set use_gdb_stub [target_info exists use_gdb_stub]
|
||
|
||
verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
|
||
gdb_write_cmd_file "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
|
||
|
||
if [info exists gdb_spawn_id] {
|
||
return 0
|
||
}
|
||
|
||
if ![is_remote host] {
|
||
if { [which $GDB] == 0 } then {
|
||
perror "$GDB does not exist."
|
||
exit 1
|
||
}
|
||
}
|
||
|
||
# Put GDBFLAGS last so that tests can put "--args ..." in it.
|
||
set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS [host_info gdb_opts] $GDBFLAGS"]
|
||
if { $res < 0 || $res == "" } {
|
||
perror "Spawning $GDB failed."
|
||
return 1
|
||
}
|
||
|
||
set gdb_spawn_id $res
|
||
set ::gdb_tty_name $::last_spawn_tty_name
|
||
return 0
|
||
}
|
||
|
||
# Default gdb_start procedure.
|
||
|
||
proc default_gdb_start { } {
|
||
global gdb_prompt
|
||
global gdb_spawn_id
|
||
global inferior_spawn_id
|
||
|
||
if [info exists gdb_spawn_id] {
|
||
return 0
|
||
}
|
||
|
||
# Keep track of the number of times GDB has been launched.
|
||
global gdb_instances
|
||
incr gdb_instances
|
||
|
||
gdb_stdin_log_init
|
||
|
||
set res [gdb_spawn]
|
||
if { $res != 0} {
|
||
return $res
|
||
}
|
||
|
||
# Default to assuming inferior I/O is done on GDB's terminal.
|
||
if {![info exists inferior_spawn_id]} {
|
||
set inferior_spawn_id $gdb_spawn_id
|
||
}
|
||
|
||
# When running over NFS, particularly if running many simultaneous
|
||
# tests on different hosts all using the same server, things can
|
||
# get really slow. Give gdb at least 3 minutes to start up.
|
||
gdb_expect 360 {
|
||
-re "\[\r\n\]$gdb_prompt $" {
|
||
verbose "GDB initialized."
|
||
}
|
||
-re "\[\r\n\]\033\\\[.2004h$gdb_prompt $" {
|
||
# This special case detects what happens when GDB is
|
||
# started with bracketed paste mode enabled. This mode is
|
||
# usually forced off (see setting of INPUTRC in
|
||
# default_gdb_init), but for at least one test we turn
|
||
# bracketed paste mode back on, and then start GDB. In
|
||
# that case, this case is hit.
|
||
verbose "GDB initialized."
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
perror "GDB never initialized."
|
||
unset gdb_spawn_id
|
||
return -1
|
||
}
|
||
timeout {
|
||
perror "(timeout) GDB never initialized after 10 seconds."
|
||
remote_close host
|
||
unset gdb_spawn_id
|
||
return -1
|
||
}
|
||
eof {
|
||
perror "(eof) GDB never initialized."
|
||
unset gdb_spawn_id
|
||
return -1
|
||
}
|
||
}
|
||
|
||
# force the height to "unlimited", so no pagers get used
|
||
|
||
send_gdb "set height 0\n"
|
||
gdb_expect 10 {
|
||
-re "$gdb_prompt $" {
|
||
verbose "Setting height to 0." 2
|
||
}
|
||
timeout {
|
||
warning "Couldn't set the height to 0"
|
||
}
|
||
}
|
||
# force the width to "unlimited", so no wraparound occurs
|
||
send_gdb "set width 0\n"
|
||
gdb_expect 10 {
|
||
-re "$gdb_prompt $" {
|
||
verbose "Setting width to 0." 2
|
||
}
|
||
timeout {
|
||
warning "Couldn't set the width to 0."
|
||
}
|
||
}
|
||
|
||
gdb_debug_init
|
||
return 0
|
||
}
|
||
|
||
# Utility procedure to give user control of the gdb prompt in a script. It is
|
||
# meant to be used for debugging test cases, and should not be left in the
|
||
# test cases code.
|
||
|
||
proc gdb_interact { } {
|
||
global gdb_spawn_id
|
||
set spawn_id $gdb_spawn_id
|
||
|
||
send_user "+------------------------------------------+\n"
|
||
send_user "| Script interrupted, you can now interact |\n"
|
||
send_user "| with by gdb. Type >>> to continue. |\n"
|
||
send_user "+------------------------------------------+\n"
|
||
|
||
interact {
|
||
">>>" return
|
||
}
|
||
}
|
||
|
||
# Examine the output of compilation to determine whether compilation
|
||
# failed or not. If it failed determine whether it is due to missing
|
||
# compiler or due to compiler error. Report pass, fail or unsupported
|
||
# as appropriate.
|
||
|
||
proc gdb_compile_test {src output} {
|
||
set msg "compilation [file tail $src]"
|
||
|
||
if { $output == "" } {
|
||
pass $msg
|
||
return
|
||
}
|
||
|
||
if { [regexp {^[a-zA-Z_0-9]+: Can't find [^ ]+\.$} $output]
|
||
|| [regexp {.*: command not found[\r|\n]*$} $output]
|
||
|| [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } {
|
||
unsupported "$msg (missing compiler)"
|
||
return
|
||
}
|
||
|
||
set gcc_re ".*: error: unrecognized command line option "
|
||
set clang_re ".*: error: unsupported option "
|
||
if { [regexp "(?:$gcc_re|$clang_re)(\[^ \t;\r\n\]*)" $output dummy option]
|
||
&& $option != "" } {
|
||
unsupported "$msg (unsupported option $option)"
|
||
return
|
||
}
|
||
|
||
# Unclassified compilation failure, be more verbose.
|
||
verbose -log "compilation failed: $output" 2
|
||
fail "$msg"
|
||
}
|
||
|
||
# Return a 1 for configurations for which we don't even want to try to
|
||
# test C++.
|
||
|
||
proc skip_cplus_tests {} {
|
||
if { [istarget "h8300-*-*"] } {
|
||
return 1
|
||
}
|
||
|
||
# The C++ IO streams are too large for HC11/HC12 and are thus not
|
||
# available. The gdb C++ tests use them and don't compile.
|
||
if { [istarget "m6811-*-*"] } {
|
||
return 1
|
||
}
|
||
if { [istarget "m6812-*-*"] } {
|
||
return 1
|
||
}
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 for configurations for which don't have both C++ and the STL.
|
||
|
||
proc skip_stl_tests {} {
|
||
return [skip_cplus_tests]
|
||
}
|
||
|
||
# Return a 1 if I don't even want to try to test FORTRAN.
|
||
|
||
proc skip_fortran_tests {} {
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 if I don't even want to try to test ada.
|
||
|
||
proc skip_ada_tests {} {
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 if I don't even want to try to test GO.
|
||
|
||
proc skip_go_tests {} {
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 if I don't even want to try to test D.
|
||
|
||
proc skip_d_tests {} {
|
||
return 0
|
||
}
|
||
|
||
# Return 1 to skip Rust tests, 0 to try them.
|
||
proc skip_rust_tests {} {
|
||
if { ![isnative] } {
|
||
return 1
|
||
}
|
||
|
||
# The rust compiler does not support "-m32", skip.
|
||
global board board_info
|
||
set board [target_info name]
|
||
if {[board_info $board exists multilib_flags]} {
|
||
foreach flag [board_info $board multilib_flags] {
|
||
if { $flag == "-m32" } {
|
||
return 1
|
||
}
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 for configurations that do not support Python scripting.
|
||
# PROMPT_REGEXP is the expected prompt.
|
||
|
||
proc skip_python_tests_prompt { prompt_regexp } {
|
||
gdb_test_multiple "python print ('test')" "verify python support" \
|
||
-prompt "$prompt_regexp" {
|
||
-re "not supported.*$prompt_regexp" {
|
||
unsupported "Python support is disabled."
|
||
return 1
|
||
}
|
||
-re "$prompt_regexp" {}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 for configurations that do not support Python scripting.
|
||
# Note: This also sets various globals that specify which version of Python
|
||
# is in use. See skip_python_tests_prompt.
|
||
|
||
proc skip_python_tests {} {
|
||
global gdb_prompt
|
||
return [skip_python_tests_prompt "$gdb_prompt $"]
|
||
}
|
||
|
||
# Return a 1 if we should skip shared library tests.
|
||
|
||
proc skip_shlib_tests {} {
|
||
# Run the shared library tests on native systems.
|
||
if {[isnative]} {
|
||
return 0
|
||
}
|
||
|
||
# An abbreviated list of remote targets where we should be able to
|
||
# run shared library tests.
|
||
if {([istarget *-*-linux*]
|
||
|| [istarget *-*-*bsd*]
|
||
|| [istarget *-*-solaris2*]
|
||
|| [istarget *-*-mingw*]
|
||
|| [istarget *-*-cygwin*]
|
||
|| [istarget *-*-pe*])} {
|
||
return 0
|
||
}
|
||
|
||
return 1
|
||
}
|
||
|
||
# Return 1 if we should skip tui related tests.
|
||
|
||
proc skip_tui_tests {} {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "help layout" "verify tui support" {
|
||
-re "Undefined command: \"layout\".*$gdb_prompt $" {
|
||
return 1
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Test files shall make sure all the test result lines in gdb.sum are
|
||
# unique in a test run, so that comparing the gdb.sum files of two
|
||
# test runs gives correct results. Test files that exercise
|
||
# variations of the same tests more than once, shall prefix the
|
||
# different test invocations with different identifying strings in
|
||
# order to make them unique.
|
||
#
|
||
# About test prefixes:
|
||
#
|
||
# $pf_prefix is the string that dejagnu prints after the result (FAIL,
|
||
# PASS, etc.), and before the test message/name in gdb.sum. E.g., the
|
||
# underlined substring in
|
||
#
|
||
# PASS: gdb.base/mytest.exp: some test
|
||
# ^^^^^^^^^^^^^^^^^^^^
|
||
#
|
||
# is $pf_prefix.
|
||
#
|
||
# The easiest way to adjust the test prefix is to append a test
|
||
# variation prefix to the $pf_prefix, using the with_test_prefix
|
||
# procedure. E.g.,
|
||
#
|
||
# proc do_tests {} {
|
||
# gdb_test ... ... "test foo"
|
||
# gdb_test ... ... "test bar"
|
||
#
|
||
# with_test_prefix "subvariation a" {
|
||
# gdb_test ... ... "test x"
|
||
# }
|
||
#
|
||
# with_test_prefix "subvariation b" {
|
||
# gdb_test ... ... "test x"
|
||
# }
|
||
# }
|
||
#
|
||
# with_test_prefix "variation1" {
|
||
# ...do setup for variation 1...
|
||
# do_tests
|
||
# }
|
||
#
|
||
# with_test_prefix "variation2" {
|
||
# ...do setup for variation 2...
|
||
# do_tests
|
||
# }
|
||
#
|
||
# Results in:
|
||
#
|
||
# PASS: gdb.base/mytest.exp: variation1: test foo
|
||
# PASS: gdb.base/mytest.exp: variation1: test bar
|
||
# PASS: gdb.base/mytest.exp: variation1: subvariation a: test x
|
||
# PASS: gdb.base/mytest.exp: variation1: subvariation b: test x
|
||
# PASS: gdb.base/mytest.exp: variation2: test foo
|
||
# PASS: gdb.base/mytest.exp: variation2: test bar
|
||
# PASS: gdb.base/mytest.exp: variation2: subvariation a: test x
|
||
# PASS: gdb.base/mytest.exp: variation2: subvariation b: test x
|
||
#
|
||
# If for some reason more flexibility is necessary, one can also
|
||
# manipulate the pf_prefix global directly, treating it as a string.
|
||
# E.g.,
|
||
#
|
||
# global pf_prefix
|
||
# set saved_pf_prefix
|
||
# append pf_prefix "${foo}: bar"
|
||
# ... actual tests ...
|
||
# set pf_prefix $saved_pf_prefix
|
||
#
|
||
|
||
# Run BODY in the context of the caller, with the current test prefix
|
||
# (pf_prefix) appended with one space, then PREFIX, and then a colon.
|
||
# Returns the result of BODY.
|
||
#
|
||
proc with_test_prefix { prefix body } {
|
||
global pf_prefix
|
||
|
||
set saved $pf_prefix
|
||
append pf_prefix " " $prefix ":"
|
||
set code [catch {uplevel 1 $body} result]
|
||
set pf_prefix $saved
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Wrapper for foreach that calls with_test_prefix on each iteration,
|
||
# including the iterator's name and current value in the prefix.
|
||
|
||
proc foreach_with_prefix {var list body} {
|
||
upvar 1 $var myvar
|
||
foreach myvar $list {
|
||
with_test_prefix "$var=$myvar" {
|
||
set code [catch {uplevel 1 $body} result]
|
||
}
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} elseif {$code == 3} {
|
||
break
|
||
} elseif {$code == 2} {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
}
|
||
|
||
# Like TCL's native proc, but defines a procedure that wraps its body
|
||
# within 'with_test_prefix "$proc_name" { ... }'.
|
||
proc proc_with_prefix {name arguments body} {
|
||
# Define the advertised proc.
|
||
proc $name $arguments [list with_test_prefix $name $body]
|
||
}
|
||
|
||
# Return an id corresponding to the test prefix stored in $pf_prefix, which
|
||
# is more suitable for use in a file name.
|
||
# F.i., for a pf_prefix:
|
||
# gdb.dwarf2/dw2-lines.exp: \
|
||
# cv=5: cdw=64: lv=5: ldw=64: string_form=line_strp:
|
||
# return an id:
|
||
# cv-5-cdw-32-lv-5-ldw-64-string_form-line_strp
|
||
|
||
proc prefix_id {} {
|
||
global pf_prefix
|
||
set id $pf_prefix
|
||
|
||
# Strip ".exp: " prefix.
|
||
set id [regsub {.*\.exp: } $id {}]
|
||
|
||
# Strip colon suffix.
|
||
set id [regsub {:$} $id {}]
|
||
|
||
# Strip spaces.
|
||
set id [regsub -all { } $id {}]
|
||
|
||
# Replace colons, equal signs.
|
||
set id [regsub -all \[:=\] $id -]
|
||
|
||
return $id
|
||
}
|
||
|
||
# Run BODY in the context of the caller. After BODY is run, the variables
|
||
# listed in VARS will be reset to the values they had before BODY was run.
|
||
#
|
||
# This is useful for providing a scope in which it is safe to temporarily
|
||
# modify global variables, e.g.
|
||
#
|
||
# global INTERNAL_GDBFLAGS
|
||
# global env
|
||
#
|
||
# set foo GDBHISTSIZE
|
||
#
|
||
# save_vars { INTERNAL_GDBFLAGS env($foo) env(HOME) } {
|
||
# append INTERNAL_GDBFLAGS " -nx"
|
||
# unset -nocomplain env(GDBHISTSIZE)
|
||
# gdb_start
|
||
# gdb_test ...
|
||
# }
|
||
#
|
||
# Here, although INTERNAL_GDBFLAGS, env(GDBHISTSIZE) and env(HOME) may be
|
||
# modified inside BODY, this proc guarantees that the modifications will be
|
||
# undone after BODY finishes executing.
|
||
|
||
proc save_vars { vars body } {
|
||
array set saved_scalars { }
|
||
array set saved_arrays { }
|
||
set unset_vars { }
|
||
|
||
foreach var $vars {
|
||
# First evaluate VAR in the context of the caller in case the variable
|
||
# name may be a not-yet-interpolated string like env($foo)
|
||
set var [uplevel 1 list $var]
|
||
|
||
if [uplevel 1 [list info exists $var]] {
|
||
if [uplevel 1 [list array exists $var]] {
|
||
set saved_arrays($var) [uplevel 1 [list array get $var]]
|
||
} else {
|
||
set saved_scalars($var) [uplevel 1 [list set $var]]
|
||
}
|
||
} else {
|
||
lappend unset_vars $var
|
||
}
|
||
}
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
foreach {var value} [array get saved_scalars] {
|
||
uplevel 1 [list set $var $value]
|
||
}
|
||
|
||
foreach {var value} [array get saved_arrays] {
|
||
uplevel 1 [list unset $var]
|
||
uplevel 1 [list array set $var $value]
|
||
}
|
||
|
||
foreach var $unset_vars {
|
||
uplevel 1 [list unset -nocomplain $var]
|
||
}
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# As save_vars, but for variables stored in the board_info for the
|
||
# target board.
|
||
#
|
||
# Usage example:
|
||
#
|
||
# save_target_board_info { multilib_flags } {
|
||
# global board
|
||
# set board [target_info name]
|
||
# unset_board_info multilib_flags
|
||
# set_board_info multilib_flags "$multilib_flags"
|
||
# ...
|
||
# }
|
||
|
||
proc save_target_board_info { vars body } {
|
||
global board board_info
|
||
set board [target_info name]
|
||
|
||
array set saved_target_board_info { }
|
||
set unset_target_board_info { }
|
||
|
||
foreach var $vars {
|
||
if { [info exists board_info($board,$var)] } {
|
||
set saved_target_board_info($var) [board_info $board $var]
|
||
} else {
|
||
lappend unset_target_board_info $var
|
||
}
|
||
}
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
foreach {var value} [array get saved_target_board_info] {
|
||
unset_board_info $var
|
||
set_board_info $var $value
|
||
}
|
||
|
||
foreach var $unset_target_board_info {
|
||
unset_board_info $var
|
||
}
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Run tests in BODY with the current working directory (CWD) set to
|
||
# DIR. When BODY is finished, restore the original CWD. Return the
|
||
# result of BODY.
|
||
#
|
||
# This procedure doesn't check if DIR is a valid directory, so you
|
||
# have to make sure of that.
|
||
|
||
proc with_cwd { dir body } {
|
||
set saved_dir [pwd]
|
||
verbose -log "Switching to directory $dir (saved CWD: $saved_dir)."
|
||
cd $dir
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
verbose -log "Switching back to $saved_dir."
|
||
cd $saved_dir
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Run tests in BODY with GDB prompt and variable $gdb_prompt set to
|
||
# PROMPT. When BODY is finished, restore GDB prompt and variable
|
||
# $gdb_prompt.
|
||
# Returns the result of BODY.
|
||
#
|
||
# Notes:
|
||
#
|
||
# 1) If you want to use, for example, "(foo)" as the prompt you must pass it
|
||
# as "(foo)", and not the regexp form "\(foo\)" (expressed as "\\(foo\\)" in
|
||
# TCL). PROMPT is internally converted to a suitable regexp for matching.
|
||
# We do the conversion from "(foo)" to "\(foo\)" here for a few reasons:
|
||
# a) It's more intuitive for callers to pass the plain text form.
|
||
# b) We need two forms of the prompt:
|
||
# - a regexp to use in output matching,
|
||
# - a value to pass to the "set prompt" command.
|
||
# c) It's easier to convert the plain text form to its regexp form.
|
||
#
|
||
# 2) Don't add a trailing space, we do that here.
|
||
|
||
proc with_gdb_prompt { prompt body } {
|
||
global gdb_prompt
|
||
|
||
# Convert "(foo)" to "\(foo\)".
|
||
# We don't use string_to_regexp because while it works today it's not
|
||
# clear it will work tomorrow: the value we need must work as both a
|
||
# regexp *and* as the argument to the "set prompt" command, at least until
|
||
# we start recording both forms separately instead of just $gdb_prompt.
|
||
# The testsuite is pretty-much hardwired to interpret $gdb_prompt as the
|
||
# regexp form.
|
||
regsub -all {[]*+.|()^$\[\\]} $prompt {\\&} prompt
|
||
|
||
set saved $gdb_prompt
|
||
|
||
verbose -log "Setting gdb prompt to \"$prompt \"."
|
||
set gdb_prompt $prompt
|
||
gdb_test_no_output "set prompt $prompt " ""
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
verbose -log "Restoring gdb prompt to \"$saved \"."
|
||
set gdb_prompt $saved
|
||
gdb_test_no_output "set prompt $saved " ""
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Run tests in BODY with target-charset setting to TARGET_CHARSET. When
|
||
# BODY is finished, restore target-charset.
|
||
|
||
proc with_target_charset { target_charset body } {
|
||
global gdb_prompt
|
||
|
||
set saved ""
|
||
gdb_test_multiple "show target-charset" "" {
|
||
-re "The target character set is \".*; currently (.*)\"\..*$gdb_prompt " {
|
||
set saved $expect_out(1,string)
|
||
}
|
||
-re "The target character set is \"(.*)\".*$gdb_prompt " {
|
||
set saved $expect_out(1,string)
|
||
}
|
||
-re ".*$gdb_prompt " {
|
||
fail "get target-charset"
|
||
}
|
||
}
|
||
|
||
gdb_test_no_output -nopass "set target-charset $target_charset"
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
gdb_test_no_output -nopass "set target-charset $saved"
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Switch the default spawn id to SPAWN_ID, so that gdb_test,
|
||
# mi_gdb_test etc. default to using it.
|
||
|
||
proc switch_gdb_spawn_id {spawn_id} {
|
||
global gdb_spawn_id
|
||
global board board_info
|
||
|
||
set gdb_spawn_id $spawn_id
|
||
set board [host_info name]
|
||
set board_info($board,fileid) $spawn_id
|
||
}
|
||
|
||
# Clear the default spawn id.
|
||
|
||
proc clear_gdb_spawn_id {} {
|
||
global gdb_spawn_id
|
||
global board board_info
|
||
|
||
unset -nocomplain gdb_spawn_id
|
||
set board [host_info name]
|
||
unset -nocomplain board_info($board,fileid)
|
||
}
|
||
|
||
# Run BODY with SPAWN_ID as current spawn id.
|
||
|
||
proc with_spawn_id { spawn_id body } {
|
||
global gdb_spawn_id
|
||
|
||
if [info exists gdb_spawn_id] {
|
||
set saved_spawn_id $gdb_spawn_id
|
||
}
|
||
|
||
switch_gdb_spawn_id $spawn_id
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
if [info exists saved_spawn_id] {
|
||
switch_gdb_spawn_id $saved_spawn_id
|
||
} else {
|
||
clear_gdb_spawn_id
|
||
}
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Select the largest timeout from all the timeouts:
|
||
# - the local "timeout" variable of the scope two levels above,
|
||
# - the global "timeout" variable,
|
||
# - the board variable "gdb,timeout".
|
||
|
||
proc get_largest_timeout {} {
|
||
upvar #0 timeout gtimeout
|
||
upvar 2 timeout timeout
|
||
|
||
set tmt 0
|
||
if [info exists timeout] {
|
||
set tmt $timeout
|
||
}
|
||
if { [info exists gtimeout] && $gtimeout > $tmt } {
|
||
set tmt $gtimeout
|
||
}
|
||
if { [target_info exists gdb,timeout]
|
||
&& [target_info gdb,timeout] > $tmt } {
|
||
set tmt [target_info gdb,timeout]
|
||
}
|
||
if { $tmt == 0 } {
|
||
# Eeeeew.
|
||
set tmt 60
|
||
}
|
||
|
||
return $tmt
|
||
}
|
||
|
||
# Run tests in BODY with timeout increased by factor of FACTOR. When
|
||
# BODY is finished, restore timeout.
|
||
|
||
proc with_timeout_factor { factor body } {
|
||
global timeout
|
||
|
||
set savedtimeout $timeout
|
||
|
||
set timeout [expr [get_largest_timeout] * $factor]
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
set timeout $savedtimeout
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
# Run BODY with timeout factor FACTOR if check-read1 is used.
|
||
|
||
proc with_read1_timeout_factor { factor body } {
|
||
if { [info exists ::env(READ1)] == 1 && $::env(READ1) == 1 } {
|
||
# Use timeout factor
|
||
} else {
|
||
# Reset timeout factor
|
||
set factor 1
|
||
}
|
||
return [uplevel [list with_timeout_factor $factor $body]]
|
||
}
|
||
|
||
# Return 1 if _Complex types are supported, otherwise, return 0.
|
||
|
||
gdb_caching_proc support_complex_tests {
|
||
|
||
if { [gdb_skip_float_test] } {
|
||
# If floating point is not supported, _Complex is not
|
||
# supported.
|
||
return 0
|
||
}
|
||
|
||
# Compile a test program containing _Complex types.
|
||
|
||
return [gdb_can_simple_compile complex {
|
||
int main() {
|
||
_Complex float cf;
|
||
_Complex double cd;
|
||
_Complex long double cld;
|
||
return 0;
|
||
}
|
||
} executable]
|
||
}
|
||
|
||
# Return 1 if compiling go is supported.
|
||
gdb_caching_proc support_go_compile {
|
||
|
||
return [gdb_can_simple_compile go-hello {
|
||
package main
|
||
import "fmt"
|
||
func main() {
|
||
fmt.Println("hello world")
|
||
}
|
||
} executable go]
|
||
}
|
||
|
||
# Return 1 if GDB can get a type for siginfo from the target, otherwise
|
||
# return 0.
|
||
|
||
proc supports_get_siginfo_type {} {
|
||
if { [istarget "*-*-linux*"] } {
|
||
return 1
|
||
} else {
|
||
return 0
|
||
}
|
||
}
|
||
|
||
# Return 1 if memory tagging is supported at runtime, otherwise return 0.
|
||
|
||
gdb_caching_proc supports_memtag {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "memory-tag check" "" {
|
||
-re "Memory tagging not supported or disabled by the current architecture\..*$gdb_prompt $" {
|
||
return 0
|
||
}
|
||
-re "Argument required \\(address or pointer\\).*$gdb_prompt $" {
|
||
return 1
|
||
}
|
||
}
|
||
return 0
|
||
}
|
||
|
||
# Return 1 if the target supports hardware single stepping.
|
||
|
||
proc can_hardware_single_step {} {
|
||
|
||
if { [istarget "arm*-*-*"] || [istarget "mips*-*-*"]
|
||
|| [istarget "tic6x-*-*"] || [istarget "sparc*-*-linux*"]
|
||
|| [istarget "nios2-*-*"] || [istarget "riscv*-*-linux*"] } {
|
||
return 0
|
||
}
|
||
|
||
return 1
|
||
}
|
||
|
||
# Return 1 if target hardware or OS supports single stepping to signal
|
||
# handler, otherwise, return 0.
|
||
|
||
proc can_single_step_to_signal_handler {} {
|
||
# Targets don't have hardware single step. On these targets, when
|
||
# a signal is delivered during software single step, gdb is unable
|
||
# to determine the next instruction addresses, because start of signal
|
||
# handler is one of them.
|
||
return [can_hardware_single_step]
|
||
}
|
||
|
||
# Return 1 if target supports process record, otherwise return 0.
|
||
|
||
proc supports_process_record {} {
|
||
|
||
if [target_info exists gdb,use_precord] {
|
||
return [target_info gdb,use_precord]
|
||
}
|
||
|
||
if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
|
||
|| [istarget "i\[34567\]86-*-linux*"]
|
||
|| [istarget "aarch64*-*-linux*"]
|
||
|| [istarget "powerpc*-*-linux*"]
|
||
|| [istarget "s390*-*-linux*"] } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return 1 if target supports reverse debugging, otherwise return 0.
|
||
|
||
proc supports_reverse {} {
|
||
|
||
if [target_info exists gdb,can_reverse] {
|
||
return [target_info gdb,can_reverse]
|
||
}
|
||
|
||
if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
|
||
|| [istarget "i\[34567\]86-*-linux*"]
|
||
|| [istarget "aarch64*-*-linux*"]
|
||
|| [istarget "powerpc*-*-linux*"]
|
||
|| [istarget "s390*-*-linux*"] } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return 1 if readline library is used.
|
||
|
||
proc readline_is_used { } {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "show editing" "" {
|
||
-re ".*Editing of command lines as they are typed is on\..*$gdb_prompt $" {
|
||
return 1
|
||
}
|
||
-re ".*$gdb_prompt $" {
|
||
return 0
|
||
}
|
||
}
|
||
}
|
||
|
||
# Return 1 if target is ELF.
|
||
gdb_caching_proc is_elf_target {
|
||
set me "is_elf_target"
|
||
|
||
set src { int foo () {return 0;} }
|
||
if {![gdb_simple_compile elf_target $src]} {
|
||
return 0
|
||
}
|
||
|
||
set fp_obj [open $obj "r"]
|
||
fconfigure $fp_obj -translation binary
|
||
set data [read $fp_obj]
|
||
close $fp_obj
|
||
|
||
file delete $obj
|
||
|
||
set ELFMAG "\u007FELF"
|
||
|
||
if {[string compare -length 4 $data $ELFMAG] != 0} {
|
||
verbose "$me: returning 0" 2
|
||
return 0
|
||
}
|
||
|
||
verbose "$me: returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Return 1 if the memory at address zero is readable.
|
||
|
||
gdb_caching_proc is_address_zero_readable {
|
||
global gdb_prompt
|
||
|
||
set ret 0
|
||
gdb_test_multiple "x 0" "" {
|
||
-re "Cannot access memory at address 0x0.*$gdb_prompt $" {
|
||
set ret 0
|
||
}
|
||
-re ".*$gdb_prompt $" {
|
||
set ret 1
|
||
}
|
||
}
|
||
|
||
return $ret
|
||
}
|
||
|
||
# Produce source file NAME and write SOURCES into it.
|
||
|
||
proc gdb_produce_source { name sources } {
|
||
set index 0
|
||
set f [open $name "w"]
|
||
|
||
puts $f $sources
|
||
close $f
|
||
}
|
||
|
||
# Return 1 if target is ILP32.
|
||
# This cannot be decided simply from looking at the target string,
|
||
# as it might depend on externally passed compiler options like -m64.
|
||
gdb_caching_proc is_ilp32_target {
|
||
return [gdb_can_simple_compile is_ilp32_target {
|
||
int dummy[sizeof (int) == 4
|
||
&& sizeof (void *) == 4
|
||
&& sizeof (long) == 4 ? 1 : -1];
|
||
}]
|
||
}
|
||
|
||
# Return 1 if target is LP64.
|
||
# This cannot be decided simply from looking at the target string,
|
||
# as it might depend on externally passed compiler options like -m64.
|
||
gdb_caching_proc is_lp64_target {
|
||
return [gdb_can_simple_compile is_lp64_target {
|
||
int dummy[sizeof (int) == 4
|
||
&& sizeof (void *) == 8
|
||
&& sizeof (long) == 8 ? 1 : -1];
|
||
}]
|
||
}
|
||
|
||
# Return 1 if target has 64 bit addresses.
|
||
# This cannot be decided simply from looking at the target string,
|
||
# as it might depend on externally passed compiler options like -m64.
|
||
gdb_caching_proc is_64_target {
|
||
return [gdb_can_simple_compile is_64_target {
|
||
int function(void) { return 3; }
|
||
int dummy[sizeof (&function) == 8 ? 1 : -1];
|
||
}]
|
||
}
|
||
|
||
# Return 1 if target has x86_64 registers - either amd64 or x32.
|
||
# x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
|
||
# just from the target string.
|
||
gdb_caching_proc is_amd64_regs_target {
|
||
if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
|
||
return 0
|
||
}
|
||
|
||
return [gdb_can_simple_compile is_amd64_regs_target {
|
||
int main (void) {
|
||
asm ("incq %rax");
|
||
asm ("incq %r15");
|
||
|
||
return 0;
|
||
}
|
||
}]
|
||
}
|
||
|
||
# Return 1 if this target is an x86 or x86-64 with -m32.
|
||
proc is_x86_like_target {} {
|
||
if {![istarget "x86_64-*-*"] && ![istarget i?86-*]} {
|
||
return 0
|
||
}
|
||
return [expr [is_ilp32_target] && ![is_amd64_regs_target]]
|
||
}
|
||
|
||
# Return 1 if this target is an arm or aarch32 on aarch64.
|
||
|
||
gdb_caching_proc is_aarch32_target {
|
||
if { [istarget "arm*-*-*"] } {
|
||
return 1
|
||
}
|
||
|
||
if { ![istarget "aarch64*-*-*"] } {
|
||
return 0
|
||
}
|
||
|
||
set list {}
|
||
foreach reg \
|
||
{r0 r1 r2 r3} {
|
||
lappend list "\tmov $reg, $reg"
|
||
}
|
||
|
||
return [gdb_can_simple_compile aarch32 [join $list \n]]
|
||
}
|
||
|
||
# Return 1 if this target is an aarch64, either lp64 or ilp32.
|
||
|
||
proc is_aarch64_target {} {
|
||
if { ![istarget "aarch64*-*-*"] } {
|
||
return 0
|
||
}
|
||
|
||
return [expr ![is_aarch32_target]]
|
||
}
|
||
|
||
# Return 1 if displaced stepping is supported on target, otherwise, return 0.
|
||
proc support_displaced_stepping {} {
|
||
|
||
if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
|
||
|| [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
|
||
|| [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"]
|
||
|| [istarget "aarch64*-*-linux*"] || [istarget "loongarch*-*-linux*"] } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Run a test on the target to see if it supports vmx hardware. Return 0 if so,
|
||
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_altivec_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_altivec_tests"
|
||
|
||
# Some simulators are known to not support VMX instructions.
|
||
if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
|
||
verbose "$me: target known to not support VMX, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Make sure we have a compiler that understands altivec.
|
||
if [test_compiler_info gcc*] {
|
||
set compile_flags "additional_flags=-maltivec"
|
||
} elseif [test_compiler_info xlc*] {
|
||
set compile_flags "additional_flags=-qaltivec"
|
||
} else {
|
||
verbose "Could not compile with altivec support, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Compile a test program containing VMX instructions.
|
||
set src {
|
||
int main() {
|
||
#ifdef __MACH__
|
||
asm volatile ("vor v0,v0,v0");
|
||
#else
|
||
asm volatile ("vor 0,0,0");
|
||
#endif
|
||
return 0;
|
||
}
|
||
}
|
||
if {![gdb_simple_compile $me $src executable $compile_flags]} {
|
||
return 1
|
||
}
|
||
|
||
# Compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "\n$me altivec hardware not detected"
|
||
set skip_vmx_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "\n$me: altivec hardware detected"
|
||
set skip_vmx_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken"
|
||
set skip_vmx_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_vmx_tests" 2
|
||
return $skip_vmx_tests
|
||
}
|
||
|
||
# Run a test on the power target to see if it supports ISA 3.1 instructions
|
||
gdb_caching_proc skip_power_isa_3_1_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_power_isa_3_1_tests"
|
||
|
||
# Compile a test program containing ISA 3.1 instructions.
|
||
set src {
|
||
int main() {
|
||
asm volatile ("pnop"); // marker
|
||
asm volatile ("nop");
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if {![gdb_simple_compile $me $src executable ]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "\n$me Power ISA 3.1 hardware not detected"
|
||
set skip_power_isa_3_1_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "\n$me: Power ISA 3.1 hardware detected"
|
||
set skip_power_isa_3_1_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken"
|
||
set skip_power_isa_3_1_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_power_isa_3_1_tests" 2
|
||
return $skip_power_isa_3_1_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports vmx hardware. Return 0 if so,
|
||
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_vsx_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_vsx_tests"
|
||
|
||
# Some simulators are known to not support Altivec instructions, so
|
||
# they won't support VSX instructions as well.
|
||
if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
|
||
verbose "$me: target known to not support VSX, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Make sure we have a compiler that understands altivec.
|
||
if [test_compiler_info gcc*] {
|
||
set compile_flags "additional_flags=-mvsx"
|
||
} elseif [test_compiler_info xlc*] {
|
||
set compile_flags "additional_flags=-qasm=gcc"
|
||
} else {
|
||
verbose "Could not compile with vsx support, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Compile a test program containing VSX instructions.
|
||
set src {
|
||
int main() {
|
||
double a[2] = { 1.0, 2.0 };
|
||
#ifdef __MACH__
|
||
asm volatile ("lxvd2x v0,v0,%[addr]" : : [addr] "r" (a));
|
||
#else
|
||
asm volatile ("lxvd2x 0,0,%[addr]" : : [addr] "r" (a));
|
||
#endif
|
||
return 0;
|
||
}
|
||
}
|
||
if {![gdb_simple_compile $me $src executable $compile_flags]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "\n$me VSX hardware not detected"
|
||
set skip_vsx_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "\n$me: VSX hardware detected"
|
||
set skip_vsx_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken"
|
||
set skip_vsx_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_vsx_tests" 2
|
||
return $skip_vsx_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports TSX hardware. Return 0 if so,
|
||
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_tsx_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_tsx_tests"
|
||
|
||
# Compile a test program.
|
||
set src {
|
||
int main() {
|
||
asm volatile ("xbegin .L0");
|
||
asm volatile ("xend");
|
||
asm volatile (".L0: nop");
|
||
return 0;
|
||
}
|
||
}
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "$me: TSX hardware not detected."
|
||
set skip_tsx_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "$me: TSX hardware detected."
|
||
set skip_tsx_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken."
|
||
set skip_tsx_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_tsx_tests" 2
|
||
return $skip_tsx_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports avx512bf16. Return 0 if so,
|
||
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_avx512bf16_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_avx512bf16_tests"
|
||
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
|
||
verbose "$me: target does not support avx512bf16, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Compile a test program.
|
||
set src {
|
||
int main() {
|
||
asm volatile ("vcvtne2ps2bf16 %xmm0, %xmm1, %xmm0");
|
||
return 0;
|
||
}
|
||
}
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "$me: avx512bf16 hardware not detected."
|
||
set skip_avx512bf16_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "$me: avx512bf16 hardware detected."
|
||
set skip_avx512bf16_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken."
|
||
set skip_avx512bf16_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_avx512bf16_tests" 2
|
||
return $skip_avx512bf16_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports avx512fp16. Return 0 if so,
|
||
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_avx512fp16_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_avx512fp16_tests"
|
||
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
|
||
verbose "$me: target does not support avx512fp16, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Compile a test program.
|
||
set src {
|
||
int main() {
|
||
asm volatile ("vcvtps2phx %xmm1, %xmm0");
|
||
return 0;
|
||
}
|
||
}
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "$me: avx512fp16 hardware not detected."
|
||
set skip_avx512fp16_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "$me: avx512fp16 hardware detected."
|
||
set skip_avx512fp16_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken."
|
||
set skip_avx512fp16_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_avx512fp16_tests" 2
|
||
return $skip_avx512fp16_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports btrace hardware. Return 0 if so,
|
||
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_btrace_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_btrace_tests"
|
||
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
|
||
verbose "$me: target does not support btrace, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Compile a test program.
|
||
set src { int main() { return 0; } }
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load $obj
|
||
if ![runto_main] {
|
||
return 1
|
||
}
|
||
# In case of an unexpected output, we return 2 as a fail value.
|
||
set skip_btrace_tests 2
|
||
gdb_test_multiple "record btrace" "check btrace support" {
|
||
-re "You can't do that when your target is.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "^record btrace\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 0
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_btrace_tests" 2
|
||
return $skip_btrace_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports btrace pt hardware.
|
||
# Return 0 if so, 1 if it does not. Based on 'check_vmx_hw_available'
|
||
# from the GCC testsuite.
|
||
|
||
gdb_caching_proc skip_btrace_pt_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_btrace_tests"
|
||
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
|
||
verbose "$me: target does not support btrace, returning 1" 2
|
||
return 1
|
||
}
|
||
|
||
# Compile a test program.
|
||
set src { int main() { return 0; } }
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 1
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load $obj
|
||
if ![runto_main] {
|
||
return 1
|
||
}
|
||
# In case of an unexpected output, we return 2 as a fail value.
|
||
set skip_btrace_tests 2
|
||
gdb_test_multiple "record btrace pt" "check btrace pt support" {
|
||
-re "You can't do that when your target is.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "support was disabled at compile time.*\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 1
|
||
}
|
||
-re "^record btrace pt\r\n$gdb_prompt $" {
|
||
set skip_btrace_tests 0
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_btrace_tests" 2
|
||
return $skip_btrace_tests
|
||
}
|
||
|
||
# Run a test on the target to see if it supports Aarch64 SVE hardware.
|
||
# Return 0 if so, 1 if it does not. Note this causes a restart of GDB.
|
||
|
||
gdb_caching_proc skip_aarch64_sve_tests {
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set me "skip_aarch64_sve_tests"
|
||
|
||
if { ![is_aarch64_target]} {
|
||
return 1
|
||
}
|
||
|
||
set compile_flags "{additional_flags=-march=armv8-a+sve}"
|
||
|
||
# Compile a test program containing SVE instructions.
|
||
set src {
|
||
int main() {
|
||
asm volatile ("ptrue p0.b");
|
||
return 0;
|
||
}
|
||
}
|
||
if {![gdb_simple_compile $me $src executable $compile_flags]} {
|
||
return 1
|
||
}
|
||
|
||
# Compilation succeeded so now run it via gdb.
|
||
clean_restart $obj
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Illegal instruction.*${gdb_prompt} $" {
|
||
verbose -log "\n$me sve hardware not detected"
|
||
set skip_sve_tests 1
|
||
}
|
||
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
|
||
verbose -log "\n$me: sve hardware detected"
|
||
set skip_sve_tests 0
|
||
}
|
||
default {
|
||
warning "\n$me: default case taken"
|
||
set skip_sve_tests 1
|
||
}
|
||
}
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $skip_sve_tests" 2
|
||
return $skip_sve_tests
|
||
}
|
||
|
||
|
||
# A helper that compiles a test case to see if __int128 is supported.
|
||
proc gdb_int128_helper {lang} {
|
||
return [gdb_can_simple_compile "i128-for-$lang" {
|
||
__int128 x;
|
||
int main() { return 0; }
|
||
} executable $lang]
|
||
}
|
||
|
||
# Return true if the C compiler understands the __int128 type.
|
||
gdb_caching_proc has_int128_c {
|
||
return [gdb_int128_helper c]
|
||
}
|
||
|
||
# Return true if the C++ compiler understands the __int128 type.
|
||
gdb_caching_proc has_int128_cxx {
|
||
return [gdb_int128_helper c++]
|
||
}
|
||
|
||
# Return true if the IFUNC feature is unsupported.
|
||
gdb_caching_proc skip_ifunc_tests {
|
||
if [gdb_can_simple_compile ifunc {
|
||
extern void f_ ();
|
||
typedef void F (void);
|
||
F* g (void) { return &f_; }
|
||
void f () __attribute__ ((ifunc ("g")));
|
||
} object] {
|
||
return 0
|
||
} else {
|
||
return 1
|
||
}
|
||
}
|
||
|
||
# Return whether we should skip tests for showing inlined functions in
|
||
# backtraces. Requires get_compiler_info and get_debug_format.
|
||
|
||
proc skip_inline_frame_tests {} {
|
||
# GDB only recognizes inlining information in DWARF.
|
||
if { ! [test_debug_format "DWARF \[0-9\]"] } {
|
||
return 1
|
||
}
|
||
|
||
# GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line.
|
||
if { ([test_compiler_info "gcc-2-*"]
|
||
|| [test_compiler_info "gcc-3-*"]
|
||
|| [test_compiler_info "gcc-4-0-*"]) } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return whether we should skip tests for showing variables from
|
||
# inlined functions. Requires get_compiler_info and get_debug_format.
|
||
|
||
proc skip_inline_var_tests {} {
|
||
# GDB only recognizes inlining information in DWARF.
|
||
if { ! [test_debug_format "DWARF \[0-9\]"] } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 if we should skip tests that require hardware breakpoints
|
||
|
||
proc skip_hw_breakpoint_tests {} {
|
||
# Skip tests if requested by the board (note that no_hardware_watchpoints
|
||
# disables both watchpoints and breakpoints)
|
||
if { [target_info exists gdb,no_hardware_watchpoints]} {
|
||
return 1
|
||
}
|
||
|
||
# These targets support hardware breakpoints natively
|
||
if { [istarget "i?86-*-*"]
|
||
|| [istarget "x86_64-*-*"]
|
||
|| [istarget "ia64-*-*"]
|
||
|| [istarget "arm*-*-*"]
|
||
|| [istarget "aarch64*-*-*"]
|
||
|| [istarget "s390*-*-*"] } {
|
||
return 0
|
||
}
|
||
|
||
return 1
|
||
}
|
||
|
||
# Return a 1 if we should skip tests that require hardware watchpoints
|
||
|
||
proc skip_hw_watchpoint_tests {} {
|
||
# Skip tests if requested by the board
|
||
if { [target_info exists gdb,no_hardware_watchpoints]} {
|
||
return 1
|
||
}
|
||
|
||
# These targets support hardware watchpoints natively
|
||
# Note, not all Power 9 processors support hardware watchpoints due to a HW
|
||
# bug. Use has_hw_wp_support to check do a runtime check for hardware
|
||
# watchpoint support on Powerpc.
|
||
if { [istarget "i?86-*-*"]
|
||
|| [istarget "x86_64-*-*"]
|
||
|| [istarget "ia64-*-*"]
|
||
|| [istarget "arm*-*-*"]
|
||
|| [istarget "aarch64*-*-*"]
|
||
|| ([istarget "powerpc*-*-linux*"] && [has_hw_wp_support])
|
||
|| [istarget "s390*-*-*"] } {
|
||
return 0
|
||
}
|
||
|
||
return 1
|
||
}
|
||
|
||
# Return a 1 if we should skip tests that require *multiple* hardware
|
||
# watchpoints to be active at the same time
|
||
|
||
proc skip_hw_watchpoint_multi_tests {} {
|
||
if { [skip_hw_watchpoint_tests] } {
|
||
return 1
|
||
}
|
||
|
||
# These targets support just a single hardware watchpoint
|
||
if { [istarget "arm*-*-*"]
|
||
|| [istarget "powerpc*-*-linux*"] } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return a 1 if we should skip tests that require read/access watchpoints
|
||
|
||
proc skip_hw_watchpoint_access_tests {} {
|
||
if { [skip_hw_watchpoint_tests] } {
|
||
return 1
|
||
}
|
||
|
||
# These targets support just write watchpoints
|
||
if { [istarget "s390*-*-*"] } {
|
||
return 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return 1 if we should skip tests that require the runtime unwinder
|
||
# hook. This must be invoked while gdb is running, after shared
|
||
# libraries have been loaded. This is needed because otherwise a
|
||
# shared libgcc won't be visible.
|
||
|
||
proc skip_unwinder_tests {} {
|
||
global gdb_prompt
|
||
|
||
set ok 0
|
||
gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
|
||
-re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
|
||
}
|
||
-re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
|
||
set ok 1
|
||
}
|
||
-re "No symbol .* in current context.\r\n$gdb_prompt $" {
|
||
}
|
||
}
|
||
if {!$ok} {
|
||
gdb_test_multiple "info probe" "check for stap probe in unwinder" {
|
||
-re ".*libgcc.*unwind.*\r\n$gdb_prompt $" {
|
||
set ok 1
|
||
}
|
||
-re "\r\n$gdb_prompt $" {
|
||
}
|
||
}
|
||
}
|
||
return $ok
|
||
}
|
||
|
||
# Return 1 if we should skip tests that require the libstdc++ stap
|
||
# probes. This must be invoked while gdb is running, after shared
|
||
# libraries have been loaded. PROMPT_REGEXP is the expected prompt.
|
||
|
||
proc skip_libstdcxx_probe_tests_prompt { prompt_regexp } {
|
||
set supported 0
|
||
gdb_test_multiple "info probe" "check for stap probe in libstdc++" \
|
||
-prompt "$prompt_regexp" {
|
||
-re ".*libstdcxx.*catch.*\r\n$prompt_regexp" {
|
||
set supported 1
|
||
}
|
||
-re "\r\n$prompt_regexp" {
|
||
}
|
||
}
|
||
set skip [expr !$supported]
|
||
return $skip
|
||
}
|
||
|
||
# As skip_libstdcxx_probe_tests_prompt, with gdb_prompt.
|
||
|
||
proc skip_libstdcxx_probe_tests {} {
|
||
global gdb_prompt
|
||
return [skip_libstdcxx_probe_tests_prompt "$gdb_prompt $"]
|
||
}
|
||
|
||
# Return 1 if we should skip tests of the "compile" feature.
|
||
# This must be invoked after the inferior has been started.
|
||
|
||
proc skip_compile_feature_tests {} {
|
||
global gdb_prompt
|
||
|
||
set result 0
|
||
gdb_test_multiple "compile code -- ;" "check for working compile command" {
|
||
"Could not load libcc1.*\r\n$gdb_prompt $" {
|
||
set result 1
|
||
}
|
||
-re "Command not supported on this host\\..*\r\n$gdb_prompt $" {
|
||
set result 1
|
||
}
|
||
-re "\r\n$gdb_prompt $" {
|
||
}
|
||
}
|
||
return $result
|
||
}
|
||
|
||
# Helper for gdb_is_target_* procs. TARGET_NAME is the name of the target
|
||
# we're looking for (used to build the test name). TARGET_STACK_REGEXP
|
||
# is a regexp that will match the output of "maint print target-stack" if
|
||
# the target in question is currently pushed. PROMPT_REGEXP is a regexp
|
||
# matching the expected prompt after the command output.
|
||
#
|
||
# NOTE: GDB must be running BEFORE this procedure is called!
|
||
|
||
proc gdb_is_target_1 { target_name target_stack_regexp prompt_regexp } {
|
||
global gdb_spawn_id
|
||
|
||
# Throw a Tcl error if gdb isn't already started.
|
||
if {![info exists gdb_spawn_id]} {
|
||
error "gdb_is_target_1 called with no running gdb instance"
|
||
}
|
||
|
||
set test "probe for target ${target_name}"
|
||
gdb_test_multiple "maint print target-stack" $test \
|
||
-prompt "$prompt_regexp" {
|
||
-re "${target_stack_regexp}${prompt_regexp}" {
|
||
pass $test
|
||
return 1
|
||
}
|
||
-re "$prompt_regexp" {
|
||
pass $test
|
||
}
|
||
}
|
||
return 0
|
||
}
|
||
|
||
# Helper for gdb_is_target_remote where the expected prompt is variable.
|
||
#
|
||
# NOTE: GDB must be running BEFORE this procedure is called!
|
||
|
||
proc gdb_is_target_remote_prompt { prompt_regexp } {
|
||
return [gdb_is_target_1 "remote" ".*emote target using gdb-specific protocol.*" $prompt_regexp]
|
||
}
|
||
|
||
# Check whether we're testing with the remote or extended-remote
|
||
# targets.
|
||
#
|
||
# NOTE: GDB must be running BEFORE this procedure is called!
|
||
|
||
proc gdb_is_target_remote { } {
|
||
global gdb_prompt
|
||
|
||
return [gdb_is_target_remote_prompt "$gdb_prompt $"]
|
||
}
|
||
|
||
# Check whether we're testing with the native target.
|
||
#
|
||
# NOTE: GDB must be running BEFORE this procedure is called!
|
||
|
||
proc gdb_is_target_native { } {
|
||
global gdb_prompt
|
||
|
||
return [gdb_is_target_1 "native" ".*native \\(Native process\\).*" "$gdb_prompt $"]
|
||
}
|
||
|
||
# Return the effective value of use_gdb_stub.
|
||
#
|
||
# If the use_gdb_stub global has been set (it is set when the gdb process is
|
||
# spawned), return that. Otherwise, return the value of the use_gdb_stub
|
||
# property from the board file.
|
||
#
|
||
# This is the preferred way of checking use_gdb_stub, since it allows to check
|
||
# the value before the gdb has been spawned and it will return the correct value
|
||
# even when it was overriden by the test.
|
||
#
|
||
# Note that stub targets are not able to spawn new inferiors. Use this
|
||
# check for skipping respective tests.
|
||
|
||
proc use_gdb_stub {} {
|
||
global use_gdb_stub
|
||
|
||
if [info exists use_gdb_stub] {
|
||
return $use_gdb_stub
|
||
}
|
||
|
||
return [target_info exists use_gdb_stub]
|
||
}
|
||
|
||
# Return 1 if the current remote target is an instance of our GDBserver, 0
|
||
# otherwise. Return -1 if there was an error and we can't tell.
|
||
|
||
gdb_caching_proc target_is_gdbserver {
|
||
global gdb_prompt
|
||
|
||
set is_gdbserver -1
|
||
set test "probing for GDBserver"
|
||
|
||
gdb_test_multiple "monitor help" $test {
|
||
-re "The following monitor commands are supported.*Quit GDBserver.*$gdb_prompt $" {
|
||
set is_gdbserver 1
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
set is_gdbserver 0
|
||
}
|
||
}
|
||
|
||
if { $is_gdbserver == -1 } {
|
||
verbose -log "Unable to tell whether we are using GDBserver or not."
|
||
}
|
||
|
||
return $is_gdbserver
|
||
}
|
||
|
||
# N.B. compiler_info is intended to be local to this file.
|
||
# Call test_compiler_info with no arguments to fetch its value.
|
||
# Yes, this is counterintuitive when there's get_compiler_info,
|
||
# but that's the current API.
|
||
if [info exists compiler_info] {
|
||
unset compiler_info
|
||
}
|
||
|
||
# Figure out what compiler I am using.
|
||
# The result is cached so only the first invocation runs the compiler.
|
||
#
|
||
# ARG can be empty or "C++". If empty, "C" is assumed.
|
||
#
|
||
# There are several ways to do this, with various problems.
|
||
#
|
||
# [ gdb_compile -E $ifile -o $binfile.ci ]
|
||
# source $binfile.ci
|
||
#
|
||
# Single Unix Spec v3 says that "-E -o ..." together are not
|
||
# specified. And in fact, the native compiler on hp-ux 11 (among
|
||
# others) does not work with "-E -o ...". Most targets used to do
|
||
# this, and it mostly worked, because it works with gcc.
|
||
#
|
||
# [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ]
|
||
# source $binfile.ci
|
||
#
|
||
# This avoids the problem with -E and -o together. This almost works
|
||
# if the build machine is the same as the host machine, which is
|
||
# usually true of the targets which are not gcc. But this code does
|
||
# not figure which compiler to call, and it always ends up using the C
|
||
# compiler. Not good for setting hp_aCC_compiler. Target
|
||
# hppa*-*-hpux* used to do this.
|
||
#
|
||
# [ gdb_compile -E $ifile > $binfile.ci ]
|
||
# source $binfile.ci
|
||
#
|
||
# dejagnu target_compile says that it supports output redirection,
|
||
# but the code is completely different from the normal path and I
|
||
# don't want to sweep the mines from that path. So I didn't even try
|
||
# this.
|
||
#
|
||
# set cppout [ gdb_compile $ifile "" preprocess $args quiet ]
|
||
# eval $cppout
|
||
#
|
||
# I actually do this for all targets now. gdb_compile runs the right
|
||
# compiler, and TCL captures the output, and I eval the output.
|
||
#
|
||
# Unfortunately, expect logs the output of the command as it goes by,
|
||
# and dejagnu helpfully prints a second copy of it right afterwards.
|
||
# So I turn off expect logging for a moment.
|
||
#
|
||
# [ gdb_compile $ifile $ciexe_file executable $args ]
|
||
# [ remote_exec $ciexe_file ]
|
||
# [ source $ci_file.out ]
|
||
#
|
||
# I could give up on -E and just do this.
|
||
# I didn't get desperate enough to try this.
|
||
#
|
||
# -- chastain 2004-01-06
|
||
|
||
proc get_compiler_info {{language "c"}} {
|
||
|
||
# For compiler.c, compiler.cc and compiler.F90.
|
||
global srcdir
|
||
|
||
# I am going to play with the log to keep noise out.
|
||
global outdir
|
||
global tool
|
||
|
||
# These come from compiler.c, compiler.cc or compiler.F90.
|
||
gdb_persistent_global compiler_info_cache
|
||
|
||
if [info exists compiler_info_cache($language)] {
|
||
# Already computed.
|
||
return 0
|
||
}
|
||
|
||
# Choose which file to preprocess.
|
||
if { $language == "c++" } {
|
||
set ifile "${srcdir}/lib/compiler.cc"
|
||
} elseif { $language == "f90" } {
|
||
set ifile "${srcdir}/lib/compiler.F90"
|
||
} elseif { $language == "c" } {
|
||
set ifile "${srcdir}/lib/compiler.c"
|
||
} else {
|
||
perror "Unable to fetch compiler version for language: $language"
|
||
return -1
|
||
}
|
||
|
||
# Run $ifile through the right preprocessor.
|
||
# Toggle gdb.log to keep the compiler output out of the log.
|
||
set saved_log [log_file -info]
|
||
log_file
|
||
if [is_remote host] {
|
||
# We have to use -E and -o together, despite the comments
|
||
# above, because of how DejaGnu handles remote host testing.
|
||
set ppout "$outdir/compiler.i"
|
||
gdb_compile "${ifile}" "$ppout" preprocess [list "$language" quiet getting_compiler_info]
|
||
set file [open $ppout r]
|
||
set cppout [read $file]
|
||
close $file
|
||
} else {
|
||
# Copy $ifile to temp dir, to work around PR gcc/60447. This will leave the
|
||
# superfluous .s file in the temp dir instead of in the source dir.
|
||
set tofile [file tail $ifile]
|
||
set tofile [standard_temp_file $tofile]
|
||
file copy -force $ifile $tofile
|
||
set ifile $tofile
|
||
set cppout [ gdb_compile "${ifile}" "" preprocess [list "$language" quiet getting_compiler_info] ]
|
||
}
|
||
eval log_file $saved_log
|
||
|
||
# Eval the output.
|
||
set unknown 0
|
||
foreach cppline [ split "$cppout" "\n" ] {
|
||
if { [ regexp "^#" "$cppline" ] } {
|
||
# line marker
|
||
} elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
|
||
# blank line
|
||
} elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
|
||
# eval this line
|
||
verbose "get_compiler_info: $cppline" 2
|
||
eval "$cppline"
|
||
} elseif { [ regexp "flang.*warning.*'-fdiagnostics-color=never'" "$cppline"] } {
|
||
# Both flang preprocessors (llvm flang and classic flang) print a
|
||
# warning for the unused -fdiagnostics-color=never, so we skip this
|
||
# output line here.
|
||
} else {
|
||
# unknown line
|
||
verbose -log "get_compiler_info: $cppline"
|
||
set unknown 1
|
||
}
|
||
}
|
||
|
||
# Set to unknown if for some reason compiler_info didn't get defined.
|
||
if ![info exists compiler_info] {
|
||
verbose -log "get_compiler_info: compiler_info not provided"
|
||
set compiler_info "unknown"
|
||
}
|
||
# Also set to unknown compiler if any diagnostics happened.
|
||
if { $unknown } {
|
||
verbose -log "get_compiler_info: got unexpected diagnostics"
|
||
set compiler_info "unknown"
|
||
}
|
||
|
||
set compiler_info_cache($language) $compiler_info
|
||
|
||
# Log what happened.
|
||
verbose -log "get_compiler_info: $compiler_info"
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return the compiler_info string if no arg is provided.
|
||
# Otherwise the argument is a glob-style expression to match against
|
||
# compiler_info.
|
||
|
||
proc test_compiler_info { {compiler ""} {language "c"} } {
|
||
gdb_persistent_global compiler_info_cache
|
||
|
||
if [get_compiler_info $language] {
|
||
# An error will already have been printed in this case. Just
|
||
# return a suitable result depending on how the user called
|
||
# this function.
|
||
if [string match "" $compiler] {
|
||
return ""
|
||
} else {
|
||
return false
|
||
}
|
||
}
|
||
|
||
# If no arg, return the compiler_info string.
|
||
if [string match "" $compiler] {
|
||
return $compiler_info_cache($language)
|
||
}
|
||
|
||
return [string match $compiler $compiler_info_cache($language)]
|
||
}
|
||
|
||
# Return true if the C compiler is GCC, otherwise, return false.
|
||
|
||
proc is_c_compiler_gcc {} {
|
||
set compiler_info [test_compiler_info]
|
||
set gcc_compiled false
|
||
regexp "^gcc-(\[0-9\]+)-" "$compiler_info" matchall gcc_compiled
|
||
return $gcc_compiled
|
||
}
|
||
|
||
# Return the gcc major version, or -1.
|
||
# For gcc 4.8.5, the major version is 4.8.
|
||
# For gcc 7.5.0, the major version 7.
|
||
# The COMPILER and LANGUAGE arguments are as for test_compiler_info.
|
||
|
||
proc gcc_major_version { {compiler "gcc-*"} {language "c"} } {
|
||
global decimal
|
||
if { ![test_compiler_info $compiler $language] } {
|
||
return -1
|
||
}
|
||
# Strip "gcc-*" to "gcc".
|
||
regsub -- {-.*} $compiler "" compiler
|
||
set res [regexp $compiler-($decimal)-($decimal)- \
|
||
[test_compiler_info "" $language] \
|
||
dummy_var major minor]
|
||
if { $res != 1 } {
|
||
return -1
|
||
}
|
||
if { $major >= 5} {
|
||
return $major
|
||
}
|
||
return $major.$minor
|
||
}
|
||
|
||
proc current_target_name { } {
|
||
global target_info
|
||
if [info exists target_info(target,name)] {
|
||
set answer $target_info(target,name)
|
||
} else {
|
||
set answer ""
|
||
}
|
||
return $answer
|
||
}
|
||
|
||
set gdb_wrapper_initialized 0
|
||
set gdb_wrapper_target ""
|
||
set gdb_wrapper_file ""
|
||
set gdb_wrapper_flags ""
|
||
|
||
proc gdb_wrapper_init { args } {
|
||
global gdb_wrapper_initialized
|
||
global gdb_wrapper_file
|
||
global gdb_wrapper_flags
|
||
global gdb_wrapper_target
|
||
|
||
if { $gdb_wrapper_initialized == 1 } { return; }
|
||
|
||
if {[target_info exists needs_status_wrapper] && \
|
||
[target_info needs_status_wrapper] != "0"} {
|
||
set result [build_wrapper "testglue.o"]
|
||
if { $result != "" } {
|
||
set gdb_wrapper_file [lindex $result 0]
|
||
if ![is_remote host] {
|
||
set gdb_wrapper_file [file join [pwd] $gdb_wrapper_file]
|
||
}
|
||
set gdb_wrapper_flags [lindex $result 1]
|
||
} else {
|
||
warning "Status wrapper failed to build."
|
||
}
|
||
} else {
|
||
set gdb_wrapper_file ""
|
||
set gdb_wrapper_flags ""
|
||
}
|
||
verbose "set gdb_wrapper_file = $gdb_wrapper_file"
|
||
set gdb_wrapper_initialized 1
|
||
set gdb_wrapper_target [current_target_name]
|
||
}
|
||
|
||
# Determine options that we always want to pass to the compiler.
|
||
gdb_caching_proc universal_compile_options {
|
||
set me "universal_compile_options"
|
||
set options {}
|
||
|
||
set src [standard_temp_file ccopts[pid].c]
|
||
set obj [standard_temp_file ccopts[pid].o]
|
||
|
||
gdb_produce_source $src {
|
||
int foo(void) { return 0; }
|
||
}
|
||
|
||
# Try an option for disabling colored diagnostics. Some compilers
|
||
# yield colored diagnostics by default (when run from a tty) unless
|
||
# such an option is specified.
|
||
set opt "additional_flags=-fdiagnostics-color=never"
|
||
set lines [target_compile $src $obj object [list "quiet" $opt]]
|
||
if [string match "" $lines] then {
|
||
# Seems to have worked; use the option.
|
||
lappend options $opt
|
||
}
|
||
file delete $src
|
||
file delete $obj
|
||
|
||
verbose "$me: returning $options" 2
|
||
return $options
|
||
}
|
||
|
||
# Compile the code in $code to a file based on $name, using the flags
|
||
# $compile_flag as well as debug, nowarning and quiet.
|
||
# Return 1 if code can be compiled
|
||
# Leave the file name of the resulting object in the upvar object.
|
||
|
||
proc gdb_simple_compile {name code {type object} {compile_flags {}} {object obj}} {
|
||
upvar $object obj
|
||
|
||
switch -regexp -- $type {
|
||
"executable" {
|
||
set postfix "x"
|
||
}
|
||
"object" {
|
||
set postfix "o"
|
||
}
|
||
"preprocess" {
|
||
set postfix "i"
|
||
}
|
||
"assembly" {
|
||
set postfix "s"
|
||
}
|
||
}
|
||
set ext "c"
|
||
foreach flag $compile_flags {
|
||
if { "$flag" == "go" } {
|
||
set ext "go"
|
||
break
|
||
}
|
||
}
|
||
set src [standard_temp_file $name-[pid].$ext]
|
||
set obj [standard_temp_file $name-[pid].$postfix]
|
||
set compile_flags [concat $compile_flags {debug nowarnings quiet}]
|
||
|
||
gdb_produce_source $src $code
|
||
|
||
verbose "$name: compiling testfile $src" 2
|
||
set lines [gdb_compile $src $obj $type $compile_flags]
|
||
|
||
file delete $src
|
||
|
||
if ![string match "" $lines] then {
|
||
verbose "$name: compilation failed, returning 0" 2
|
||
return 0
|
||
}
|
||
return 1
|
||
}
|
||
|
||
# Compile the code in $code to a file based on $name, using the flags
|
||
# $compile_flag as well as debug, nowarning and quiet.
|
||
# Return 1 if code can be compiled
|
||
# Delete all created files and objects.
|
||
|
||
proc gdb_can_simple_compile {name code {type object} {compile_flags ""}} {
|
||
set ret [gdb_simple_compile $name $code $type $compile_flags temp_obj]
|
||
file delete $temp_obj
|
||
return $ret
|
||
}
|
||
|
||
# Some targets need to always link a special object in. Save its path here.
|
||
global gdb_saved_set_unbuffered_mode_obj
|
||
set gdb_saved_set_unbuffered_mode_obj ""
|
||
|
||
# Compile source files specified by SOURCE into a binary of type TYPE at path
|
||
# DEST. gdb_compile is implemented using DejaGnu's target_compile, so the type
|
||
# parameter and most options are passed directly to it.
|
||
#
|
||
# The type can be one of the following:
|
||
#
|
||
# - object: Compile into an object file.
|
||
# - executable: Compile and link into an executable.
|
||
# - preprocess: Preprocess the source files.
|
||
# - assembly: Generate assembly listing.
|
||
#
|
||
# The following options are understood and processed by gdb_compile:
|
||
#
|
||
# - shlib=so_path: Add SO_PATH to the sources, and enable some target-specific
|
||
# quirks to be able to use shared libraries.
|
||
# - shlib_load: Link with appropriate libraries to allow the test to
|
||
# dynamically load libraries at runtime. For example, on Linux, this adds
|
||
# -ldl so that the test can use dlopen.
|
||
# - nowarnings: Inhibit all compiler warnings.
|
||
# - pie: Force creation of PIE executables.
|
||
# - nopie: Prevent creation of PIE executables.
|
||
# - macros: Add the required compiler flag to include macro information in
|
||
# debug information
|
||
# - text_segment=addr: Tell the linker to place the text segment at ADDR.
|
||
#
|
||
# And here are some of the not too obscure options understood by DejaGnu that
|
||
# influence the compilation:
|
||
#
|
||
# - additional_flags=flag: Add FLAG to the compiler flags.
|
||
# - libs=library: Add LIBRARY to the libraries passed to the linker. The
|
||
# argument can be a file, in which case it's added to the sources, or a
|
||
# linker flag.
|
||
# - ldflags=flag: Add FLAG to the linker flags.
|
||
# - incdir=path: Add PATH to the searched include directories.
|
||
# - libdir=path: Add PATH to the linker searched directories.
|
||
# - ada, c++, f90, go, rust: Compile the file as Ada, C++,
|
||
# Fortran 90, Go or Rust.
|
||
# - debug: Build with debug information.
|
||
# - optimize: Build with optimization.
|
||
|
||
proc gdb_compile {source dest type options} {
|
||
global GDB_TESTCASE_OPTIONS
|
||
global gdb_wrapper_file
|
||
global gdb_wrapper_flags
|
||
global srcdir
|
||
global objdir
|
||
global gdb_saved_set_unbuffered_mode_obj
|
||
|
||
set outdir [file dirname $dest]
|
||
|
||
# If this is set, calling test_compiler_info will cause recursion.
|
||
if { [lsearch -exact $options getting_compiler_info] == -1 } {
|
||
set getting_compiler_info false
|
||
} else {
|
||
set getting_compiler_info true
|
||
}
|
||
|
||
# Add platform-specific options if a shared library was specified using
|
||
# "shlib=librarypath" in OPTIONS.
|
||
set new_options {}
|
||
if {[lsearch -exact $options rust] != -1} {
|
||
# -fdiagnostics-color is not a rustcc option.
|
||
} else {
|
||
set new_options [universal_compile_options]
|
||
}
|
||
|
||
# Some C/C++ testcases unconditionally pass -Wno-foo as additional
|
||
# options to disable some warning. That is OK with GCC, because
|
||
# by design, GCC accepts any -Wno-foo option, even if it doesn't
|
||
# support -Wfoo. Clang however warns about unknown -Wno-foo by
|
||
# default, unless you pass -Wno-unknown-warning-option as well.
|
||
# We do that here, so that individual testcases don't have to
|
||
# worry about it.
|
||
if {!$getting_compiler_info
|
||
&& [lsearch -exact $options rust] == -1
|
||
&& [lsearch -exact $options ada] == -1
|
||
&& [lsearch -exact $options f90] == -1
|
||
&& [lsearch -exact $options go] == -1
|
||
&& [test_compiler_info "clang-*"]} {
|
||
lappend new_options "additional_flags=-Wno-unknown-warning-option"
|
||
}
|
||
|
||
# Treating .c input files as C++ is deprecated in Clang, so
|
||
# explicitly force C++ language.
|
||
if { !$getting_compiler_info
|
||
&& [lsearch -exact $options c++] != -1
|
||
&& [string match *.c $source] != 0 } {
|
||
|
||
# gdb_compile cannot handle this combination of options, the
|
||
# result is a command like "clang -x c++ foo.c bar.so -o baz"
|
||
# which tells Clang to treat bar.so as C++. The solution is
|
||
# to call gdb_compile twice--once to compile, once to link--
|
||
# either directly, or via build_executable_from_specs.
|
||
if { [lsearch $options shlib=*] != -1 } {
|
||
error "incompatible gdb_compile options"
|
||
}
|
||
|
||
if {[test_compiler_info "clang-*"]} {
|
||
lappend new_options early_flags=-x\ c++
|
||
}
|
||
}
|
||
|
||
# Place (and look for) Fortran `.mod` files in the output
|
||
# directory for this specific test. For Intel compilers the -J
|
||
# option is not supported so instead use the -module flag.
|
||
# Additionally, Intel compilers need the -debug-parameters flag set to
|
||
# emit debug info for all parameters in modules.
|
||
if { !$getting_compiler_info && [lsearch -exact $options f90] != -1 } {
|
||
# Fortran compile.
|
||
set mod_path [standard_output_file ""]
|
||
if { [test_compiler_info {gfortran-*} f90] } {
|
||
lappend new_options "additional_flags=-J${mod_path}"
|
||
} elseif { [test_compiler_info {ifort-*} f90]
|
||
|| [test_compiler_info {ifx-*} f90] } {
|
||
lappend new_options "additional_flags=-module ${mod_path}"
|
||
lappend new_options "additional_flags=-debug-parameters all"
|
||
}
|
||
}
|
||
|
||
set shlib_found 0
|
||
set shlib_load 0
|
||
foreach opt $options {
|
||
if {[regexp {^shlib=(.*)} $opt dummy_var shlib_name]
|
||
&& $type == "executable"} {
|
||
if [test_compiler_info "xlc-*"] {
|
||
# IBM xlc compiler doesn't accept shared library named other
|
||
# than .so: use "-Wl," to bypass this
|
||
lappend source "-Wl,$shlib_name"
|
||
} elseif { ([istarget "*-*-mingw*"]
|
||
|| [istarget *-*-cygwin*]
|
||
|| [istarget *-*-pe*])} {
|
||
lappend source "${shlib_name}.a"
|
||
} else {
|
||
lappend source $shlib_name
|
||
}
|
||
if { $shlib_found == 0 } {
|
||
set shlib_found 1
|
||
if { ([istarget "*-*-mingw*"]
|
||
|| [istarget *-*-cygwin*]) } {
|
||
lappend new_options "additional_flags=-Wl,--enable-auto-import"
|
||
}
|
||
if { [test_compiler_info "gcc-*"] || [test_compiler_info "clang-*"] } {
|
||
# Undo debian's change in the default.
|
||
# Put it at the front to not override any user-provided
|
||
# value, and to make sure it appears in front of all the
|
||
# shlibs!
|
||
lappend new_options "early_flags=-Wl,--no-as-needed"
|
||
}
|
||
}
|
||
} elseif { $opt == "shlib_load" && $type == "executable" } {
|
||
set shlib_load 1
|
||
} elseif { $opt == "getting_compiler_info" } {
|
||
# Ignore this setting here as it has been handled earlier in this
|
||
# procedure. Do not append it to new_options as this will cause
|
||
# recursion.
|
||
} elseif {[regexp "^text_segment=(.*)" $opt dummy_var addr]} {
|
||
if { [linker_supports_Ttext_segment_flag] } {
|
||
# For GNU ld.
|
||
lappend new_options "ldflags=-Wl,-Ttext-segment=$addr"
|
||
} elseif { [linker_supports_image_base_flag] } {
|
||
# For LLVM's lld.
|
||
lappend new_options "ldflags=-Wl,--image-base=$addr"
|
||
} elseif { [linker_supports_Ttext_flag] } {
|
||
# For old GNU gold versions.
|
||
lappend new_options "ldflags=-Wl,-Ttext=$addr"
|
||
} else {
|
||
error "Don't know how to handle text_segment option."
|
||
}
|
||
} else {
|
||
lappend new_options $opt
|
||
}
|
||
}
|
||
|
||
# Ensure stack protector is disabled for GCC, as this causes problems with
|
||
# DWARF line numbering.
|
||
# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88432
|
||
# This option defaults to on for Debian/Ubuntu.
|
||
if { !$getting_compiler_info
|
||
&& [test_compiler_info {gcc-*-*}]
|
||
&& !([test_compiler_info {gcc-[0-3]-*}]
|
||
|| [test_compiler_info {gcc-4-0-*}])
|
||
&& [lsearch -exact $options rust] == -1} {
|
||
# Put it at the front to not override any user-provided value.
|
||
lappend new_options "early_flags=-fno-stack-protector"
|
||
}
|
||
|
||
# Because we link with libraries using their basename, we may need
|
||
# (depending on the platform) to set a special rpath value, to allow
|
||
# the executable to find the libraries it depends on.
|
||
if { $shlib_load || $shlib_found } {
|
||
if { ([istarget "*-*-mingw*"]
|
||
|| [istarget *-*-cygwin*]
|
||
|| [istarget *-*-pe*]) } {
|
||
# Do not need anything.
|
||
} elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
|
||
lappend new_options "ldflags=-Wl,-rpath,${outdir}"
|
||
} else {
|
||
if { $shlib_load } {
|
||
lappend new_options "libs=-ldl"
|
||
}
|
||
lappend new_options "ldflags=-Wl,-rpath,\\\$ORIGIN"
|
||
}
|
||
}
|
||
set options $new_options
|
||
|
||
if [info exists GDB_TESTCASE_OPTIONS] {
|
||
lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"
|
||
}
|
||
verbose "options are $options"
|
||
verbose "source is $source $dest $type $options"
|
||
|
||
gdb_wrapper_init
|
||
|
||
if {[target_info exists needs_status_wrapper] && \
|
||
[target_info needs_status_wrapper] != "0" && \
|
||
$gdb_wrapper_file != "" } {
|
||
lappend options "libs=${gdb_wrapper_file}"
|
||
lappend options "ldflags=${gdb_wrapper_flags}"
|
||
}
|
||
|
||
# Replace the "nowarnings" option with the appropriate additional_flags
|
||
# to disable compiler warnings.
|
||
set nowarnings [lsearch -exact $options nowarnings]
|
||
if {$nowarnings != -1} {
|
||
if [target_info exists gdb,nowarnings_flag] {
|
||
set flag "additional_flags=[target_info gdb,nowarnings_flag]"
|
||
} else {
|
||
set flag "additional_flags=-w"
|
||
}
|
||
set options [lreplace $options $nowarnings $nowarnings $flag]
|
||
}
|
||
|
||
# Replace the "pie" option with the appropriate compiler and linker flags
|
||
# to enable PIE executables.
|
||
set pie [lsearch -exact $options pie]
|
||
if {$pie != -1} {
|
||
if [target_info exists gdb,pie_flag] {
|
||
set flag "additional_flags=[target_info gdb,pie_flag]"
|
||
} else {
|
||
# For safety, use fPIE rather than fpie. On AArch64, m68k, PowerPC
|
||
# and SPARC, fpie can cause compile errors due to the GOT exceeding
|
||
# a maximum size. On other architectures the two flags are
|
||
# identical (see the GCC manual). Note Debian9 and Ubuntu16.10
|
||
# onwards default GCC to using fPIE. If you do require fpie, then
|
||
# it can be set using the pie_flag.
|
||
set flag "additional_flags=-fPIE"
|
||
}
|
||
set options [lreplace $options $pie $pie $flag]
|
||
|
||
if [target_info exists gdb,pie_ldflag] {
|
||
set flag "ldflags=[target_info gdb,pie_ldflag]"
|
||
} else {
|
||
set flag "ldflags=-pie"
|
||
}
|
||
lappend options "$flag"
|
||
}
|
||
|
||
# Replace the "nopie" option with the appropriate compiler and linker
|
||
# flags to disable PIE executables.
|
||
set nopie [lsearch -exact $options nopie]
|
||
if {$nopie != -1} {
|
||
if [target_info exists gdb,nopie_flag] {
|
||
set flag "additional_flags=[target_info gdb,nopie_flag]"
|
||
} else {
|
||
set flag "additional_flags=-fno-pie"
|
||
}
|
||
set options [lreplace $options $nopie $nopie $flag]
|
||
|
||
if [target_info exists gdb,nopie_ldflag] {
|
||
set flag "ldflags=[target_info gdb,nopie_ldflag]"
|
||
} else {
|
||
set flag "ldflags=-no-pie"
|
||
}
|
||
lappend options "$flag"
|
||
}
|
||
|
||
set macros [lsearch -exact $options macros]
|
||
if {$macros != -1} {
|
||
if { [test_compiler_info "clang-*"] } {
|
||
set flag "additional_flags=-fdebug-macro"
|
||
} else {
|
||
set flag "additional_flags=-g3"
|
||
}
|
||
|
||
set options [lreplace $options $macros $macros $flag]
|
||
}
|
||
|
||
if { $type == "executable" } {
|
||
if { ([istarget "*-*-mingw*"]
|
||
|| [istarget "*-*-*djgpp"]
|
||
|| [istarget "*-*-cygwin*"])} {
|
||
# Force output to unbuffered mode, by linking in an object file
|
||
# with a global contructor that calls setvbuf.
|
||
#
|
||
# Compile the special object separately for two reasons:
|
||
# 1) Insulate it from $options.
|
||
# 2) Avoid compiling it for every gdb_compile invocation,
|
||
# which is time consuming, especially if we're remote
|
||
# host testing.
|
||
#
|
||
if { $gdb_saved_set_unbuffered_mode_obj == "" } {
|
||
verbose "compiling gdb_saved_set_unbuffered_obj"
|
||
set unbuf_src ${srcdir}/lib/set_unbuffered_mode.c
|
||
set unbuf_obj ${objdir}/set_unbuffered_mode.o
|
||
|
||
set result [gdb_compile "${unbuf_src}" "${unbuf_obj}" object {nowarnings}]
|
||
if { $result != "" } {
|
||
return $result
|
||
}
|
||
if {[is_remote host]} {
|
||
set gdb_saved_set_unbuffered_mode_obj set_unbuffered_mode_saved.o
|
||
} else {
|
||
set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o
|
||
}
|
||
# Link a copy of the output object, because the
|
||
# original may be automatically deleted.
|
||
remote_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
|
||
} else {
|
||
verbose "gdb_saved_set_unbuffered_obj already compiled"
|
||
}
|
||
|
||
# Rely on the internal knowledge that the global ctors are ran in
|
||
# reverse link order. In that case, we can use ldflags to
|
||
# avoid copying the object file to the host multiple
|
||
# times.
|
||
# This object can only be added if standard libraries are
|
||
# used. Thus, we need to disable it if -nostdlib option is used
|
||
if {[lsearch -regexp $options "-nostdlib"] < 0 } {
|
||
lappend options "ldflags=$gdb_saved_set_unbuffered_mode_obj"
|
||
}
|
||
}
|
||
}
|
||
|
||
set result [target_compile $source $dest $type $options]
|
||
|
||
# Prune uninteresting compiler (and linker) output.
|
||
regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
|
||
|
||
regsub "\[\r\n\]*$" "$result" "" result
|
||
regsub "^\[\r\n\]*" "$result" "" result
|
||
|
||
if { $type == "executable" && $result == "" \
|
||
&& ($nopie != -1 || $pie != -1) } {
|
||
set is_pie [exec_is_pie "$dest"]
|
||
if { $nopie != -1 && $is_pie == 1 } {
|
||
set result "nopie failed to prevent PIE executable"
|
||
} elseif { $pie != -1 && $is_pie == 0 } {
|
||
set result "pie failed to generate PIE executable"
|
||
}
|
||
}
|
||
|
||
if {[lsearch $options quiet] < 0} {
|
||
if { $result != "" } {
|
||
clone_output "gdb compile failed, $result"
|
||
}
|
||
}
|
||
return $result
|
||
}
|
||
|
||
|
||
# This is just like gdb_compile, above, except that it tries compiling
|
||
# against several different thread libraries, to see which one this
|
||
# system has.
|
||
proc gdb_compile_pthreads {source dest type options} {
|
||
if {$type != "executable"} {
|
||
return [gdb_compile $source $dest $type $options]
|
||
}
|
||
set built_binfile 0
|
||
set why_msg "unrecognized error"
|
||
foreach lib {-lpthreads -lpthread -lthread ""} {
|
||
# This kind of wipes out whatever libs the caller may have
|
||
# set. Or maybe theirs will override ours. How infelicitous.
|
||
set options_with_lib [concat $options [list libs=$lib quiet]]
|
||
set ccout [gdb_compile $source $dest $type $options_with_lib]
|
||
switch -regexp -- $ccout {
|
||
".*no posix threads support.*" {
|
||
set why_msg "missing threads include file"
|
||
break
|
||
}
|
||
".*cannot open -lpthread.*" {
|
||
set why_msg "missing runtime threads library"
|
||
}
|
||
".*Can't find library for -lpthread.*" {
|
||
set why_msg "missing runtime threads library"
|
||
}
|
||
{^$} {
|
||
pass "successfully compiled posix threads test case"
|
||
set built_binfile 1
|
||
break
|
||
}
|
||
}
|
||
}
|
||
if {!$built_binfile} {
|
||
unsupported "couldn't compile [file tail $source]: ${why_msg}"
|
||
return -1
|
||
}
|
||
}
|
||
|
||
# Build a shared library from SOURCES.
|
||
|
||
proc gdb_compile_shlib_1 {sources dest options} {
|
||
set obj_options $options
|
||
|
||
set ada 0
|
||
if { [lsearch -exact $options "ada"] >= 0 } {
|
||
set ada 1
|
||
}
|
||
|
||
if { [lsearch -exact $options "c++"] >= 0 } {
|
||
set info_options "c++"
|
||
} elseif { [lsearch -exact $options "f90"] >= 0 } {
|
||
set info_options "f90"
|
||
} else {
|
||
set info_options "c"
|
||
}
|
||
|
||
switch -glob [test_compiler_info "" ${info_options}] {
|
||
"xlc-*" {
|
||
lappend obj_options "additional_flags=-qpic"
|
||
}
|
||
"clang-*" {
|
||
if { [istarget "*-*-cygwin*"]
|
||
|| [istarget "*-*-mingw*"] } {
|
||
lappend obj_options "additional_flags=-fPIC"
|
||
} else {
|
||
lappend obj_options "additional_flags=-fpic"
|
||
}
|
||
}
|
||
"gcc-*" {
|
||
if { [istarget "powerpc*-*-aix*"]
|
||
|| [istarget "rs6000*-*-aix*"]
|
||
|| [istarget "*-*-cygwin*"]
|
||
|| [istarget "*-*-mingw*"]
|
||
|| [istarget "*-*-pe*"] } {
|
||
lappend obj_options "additional_flags=-fPIC"
|
||
} else {
|
||
lappend obj_options "additional_flags=-fpic"
|
||
}
|
||
}
|
||
"icc-*" {
|
||
lappend obj_options "additional_flags=-fpic"
|
||
}
|
||
default {
|
||
# don't know what the compiler is...
|
||
lappend obj_options "additional_flags=-fPIC"
|
||
}
|
||
}
|
||
|
||
set outdir [file dirname $dest]
|
||
set objects ""
|
||
foreach source $sources {
|
||
if {[file extension $source] == ".o"} {
|
||
# Already a .o file.
|
||
lappend objects $source
|
||
continue
|
||
}
|
||
|
||
set sourcebase [file tail $source]
|
||
|
||
if { $ada } {
|
||
# Gnatmake doesn't like object name foo.adb.o, use foo.o.
|
||
set sourcebase [file rootname $sourcebase]
|
||
}
|
||
set object ${outdir}/${sourcebase}.o
|
||
|
||
if { $ada } {
|
||
# Use gdb_compile_ada_1 instead of gdb_compile_ada to avoid the
|
||
# PASS message.
|
||
if {[gdb_compile_ada_1 $source $object object \
|
||
$obj_options] != ""} {
|
||
return -1
|
||
}
|
||
} else {
|
||
if {[gdb_compile $source $object object \
|
||
$obj_options] != ""} {
|
||
return -1
|
||
}
|
||
}
|
||
|
||
lappend objects $object
|
||
}
|
||
|
||
set link_options $options
|
||
if { $ada } {
|
||
# If we try to use gnatmake for the link, it will interpret the
|
||
# object file as an .adb file. Remove ada from the options to
|
||
# avoid it.
|
||
set idx [lsearch $link_options "ada"]
|
||
set link_options [lreplace $link_options $idx $idx]
|
||
}
|
||
if [test_compiler_info "xlc-*"] {
|
||
lappend link_options "additional_flags=-qmkshrobj"
|
||
} else {
|
||
lappend link_options "additional_flags=-shared"
|
||
|
||
if { ([istarget "*-*-mingw*"]
|
||
|| [istarget *-*-cygwin*]
|
||
|| [istarget *-*-pe*]) } {
|
||
if { [is_remote host] } {
|
||
set name [file tail ${dest}]
|
||
} else {
|
||
set name ${dest}
|
||
}
|
||
lappend link_options "additional_flags=-Wl,--out-implib,${name}.a"
|
||
} else {
|
||
# Set the soname of the library. This causes the linker on ELF
|
||
# systems to create the DT_NEEDED entry in the executable referring
|
||
# to the soname of the library, and not its absolute path. This
|
||
# (using the absolute path) would be problem when testing on a
|
||
# remote target.
|
||
#
|
||
# In conjunction with setting the soname, we add the special
|
||
# rpath=$ORIGIN value when building the executable, so that it's
|
||
# able to find the library in its own directory.
|
||
set destbase [file tail $dest]
|
||
lappend link_options "additional_flags=-Wl,-soname,$destbase"
|
||
}
|
||
}
|
||
if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
|
||
return -1
|
||
}
|
||
if { [is_remote host]
|
||
&& ([istarget "*-*-mingw*"]
|
||
|| [istarget *-*-cygwin*]
|
||
|| [istarget *-*-pe*]) } {
|
||
set dest_tail_name [file tail ${dest}]
|
||
remote_upload host $dest_tail_name.a ${dest}.a
|
||
remote_file host delete $dest_tail_name.a
|
||
}
|
||
|
||
return ""
|
||
}
|
||
|
||
# Build a shared library from SOURCES. Ignore target boards PIE-related
|
||
# multilib_flags.
|
||
|
||
proc gdb_compile_shlib {sources dest options} {
|
||
global board
|
||
|
||
# Ignore PIE-related setting in multilib_flags.
|
||
set board [target_info name]
|
||
set multilib_flags_orig [board_info $board multilib_flags]
|
||
set multilib_flags ""
|
||
foreach op $multilib_flags_orig {
|
||
if { $op == "-pie" || $op == "-no-pie" \
|
||
|| $op == "-fPIE" || $op == "-fno-PIE"} {
|
||
} else {
|
||
append multilib_flags " $op"
|
||
}
|
||
}
|
||
|
||
save_target_board_info { multilib_flags } {
|
||
unset_board_info multilib_flags
|
||
set_board_info multilib_flags "$multilib_flags"
|
||
set result [gdb_compile_shlib_1 $sources $dest $options]
|
||
}
|
||
|
||
return $result
|
||
}
|
||
|
||
# This is just like gdb_compile_shlib, above, except that it tries compiling
|
||
# against several different thread libraries, to see which one this
|
||
# system has.
|
||
proc gdb_compile_shlib_pthreads {sources dest options} {
|
||
set built_binfile 0
|
||
set why_msg "unrecognized error"
|
||
foreach lib {-lpthreads -lpthread -lthread ""} {
|
||
# This kind of wipes out whatever libs the caller may have
|
||
# set. Or maybe theirs will override ours. How infelicitous.
|
||
set options_with_lib [concat $options [list libs=$lib quiet]]
|
||
set ccout [gdb_compile_shlib $sources $dest $options_with_lib]
|
||
switch -regexp -- $ccout {
|
||
".*no posix threads support.*" {
|
||
set why_msg "missing threads include file"
|
||
break
|
||
}
|
||
".*cannot open -lpthread.*" {
|
||
set why_msg "missing runtime threads library"
|
||
}
|
||
".*Can't find library for -lpthread.*" {
|
||
set why_msg "missing runtime threads library"
|
||
}
|
||
{^$} {
|
||
pass "successfully compiled posix threads shlib test case"
|
||
set built_binfile 1
|
||
break
|
||
}
|
||
}
|
||
}
|
||
if {!$built_binfile} {
|
||
unsupported "couldn't compile $sources: ${why_msg}"
|
||
return -1
|
||
}
|
||
}
|
||
|
||
# This is just like gdb_compile_pthreads, above, except that we always add the
|
||
# objc library for compiling Objective-C programs
|
||
proc gdb_compile_objc {source dest type options} {
|
||
set built_binfile 0
|
||
set why_msg "unrecognized error"
|
||
foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
|
||
# This kind of wipes out whatever libs the caller may have
|
||
# set. Or maybe theirs will override ours. How infelicitous.
|
||
if { $lib == "solaris" } {
|
||
set lib "-lpthread -lposix4"
|
||
}
|
||
if { $lib != "-lobjc" } {
|
||
set lib "-lobjc $lib"
|
||
}
|
||
set options_with_lib [concat $options [list libs=$lib quiet]]
|
||
set ccout [gdb_compile $source $dest $type $options_with_lib]
|
||
switch -regexp -- $ccout {
|
||
".*no posix threads support.*" {
|
||
set why_msg "missing threads include file"
|
||
break
|
||
}
|
||
".*cannot open -lpthread.*" {
|
||
set why_msg "missing runtime threads library"
|
||
}
|
||
".*Can't find library for -lpthread.*" {
|
||
set why_msg "missing runtime threads library"
|
||
}
|
||
{^$} {
|
||
pass "successfully compiled objc with posix threads test case"
|
||
set built_binfile 1
|
||
break
|
||
}
|
||
}
|
||
}
|
||
if {!$built_binfile} {
|
||
unsupported "couldn't compile [file tail $source]: ${why_msg}"
|
||
return -1
|
||
}
|
||
}
|
||
|
||
# Build an OpenMP program from SOURCE. See prefatory comment for
|
||
# gdb_compile, above, for discussion of the parameters to this proc.
|
||
|
||
proc gdb_compile_openmp {source dest type options} {
|
||
lappend options "additional_flags=-fopenmp"
|
||
return [gdb_compile $source $dest $type $options]
|
||
}
|
||
|
||
# Send a command to GDB.
|
||
# For options for TYPE see gdb_stdin_log_write
|
||
|
||
proc send_gdb { string {type standard}} {
|
||
gdb_stdin_log_write $string $type
|
||
return [remote_send host "$string"]
|
||
}
|
||
|
||
# Send STRING to the inferior's terminal.
|
||
|
||
proc send_inferior { string } {
|
||
global inferior_spawn_id
|
||
|
||
if {[catch "send -i $inferior_spawn_id -- \$string" errorInfo]} {
|
||
return "$errorInfo"
|
||
} else {
|
||
return ""
|
||
}
|
||
}
|
||
|
||
#
|
||
#
|
||
|
||
proc gdb_expect { args } {
|
||
if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
|
||
set atimeout [lindex $args 0]
|
||
set expcode [list [lindex $args 1]]
|
||
} else {
|
||
set expcode $args
|
||
}
|
||
|
||
# A timeout argument takes precedence, otherwise of all the timeouts
|
||
# select the largest.
|
||
if [info exists atimeout] {
|
||
set tmt $atimeout
|
||
} else {
|
||
set tmt [get_largest_timeout]
|
||
}
|
||
|
||
set code [catch \
|
||
{uplevel remote_expect host $tmt $expcode} string]
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
|
||
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
|
||
} else {
|
||
return -code $code $string
|
||
}
|
||
}
|
||
|
||
# gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs
|
||
#
|
||
# Check for long sequence of output by parts.
|
||
# TEST: is the test message to be printed with the test success/fail.
|
||
# SENTINEL: Is the terminal pattern indicating that output has finished.
|
||
# LIST: is the sequence of outputs to match.
|
||
# If the sentinel is recognized early, it is considered an error.
|
||
#
|
||
# Returns:
|
||
# 1 if the test failed,
|
||
# 0 if the test passes,
|
||
# -1 if there was an internal error.
|
||
|
||
proc gdb_expect_list {test sentinel list} {
|
||
global gdb_prompt
|
||
set index 0
|
||
set ok 1
|
||
|
||
while { ${index} < [llength ${list}] } {
|
||
set pattern [lindex ${list} ${index}]
|
||
set index [expr ${index} + 1]
|
||
verbose -log "gdb_expect_list pattern: /$pattern/" 2
|
||
if { ${index} == [llength ${list}] } {
|
||
if { ${ok} } {
|
||
gdb_expect {
|
||
-re "${pattern}${sentinel}" {
|
||
# pass "${test}, pattern ${index} + sentinel"
|
||
}
|
||
-re "${sentinel}" {
|
||
fail "${test} (pattern ${index} + sentinel)"
|
||
set ok 0
|
||
}
|
||
-re ".*A problem internal to GDB has been detected" {
|
||
fail "${test} (GDB internal error)"
|
||
set ok 0
|
||
gdb_internal_error_resync
|
||
}
|
||
timeout {
|
||
fail "${test} (pattern ${index} + sentinel) (timeout)"
|
||
set ok 0
|
||
}
|
||
}
|
||
} else {
|
||
# unresolved "${test}, pattern ${index} + sentinel"
|
||
}
|
||
} else {
|
||
if { ${ok} } {
|
||
gdb_expect {
|
||
-re "${pattern}" {
|
||
# pass "${test}, pattern ${index}"
|
||
}
|
||
-re "${sentinel}" {
|
||
fail "${test} (pattern ${index})"
|
||
set ok 0
|
||
}
|
||
-re ".*A problem internal to GDB has been detected" {
|
||
fail "${test} (GDB internal error)"
|
||
set ok 0
|
||
gdb_internal_error_resync
|
||
}
|
||
timeout {
|
||
fail "${test} (pattern ${index}) (timeout)"
|
||
set ok 0
|
||
}
|
||
}
|
||
} else {
|
||
# unresolved "${test}, pattern ${index}"
|
||
}
|
||
}
|
||
}
|
||
if { ${ok} } {
|
||
pass "${test}"
|
||
return 0
|
||
} else {
|
||
return 1
|
||
}
|
||
}
|
||
|
||
# Spawn the gdb process.
|
||
#
|
||
# This doesn't expect any output or do any other initialization,
|
||
# leaving those to the caller.
|
||
#
|
||
# Overridable function -- you can override this function in your
|
||
# baseboard file.
|
||
|
||
proc gdb_spawn { } {
|
||
default_gdb_spawn
|
||
}
|
||
|
||
# Spawn GDB with CMDLINE_FLAGS appended to the GDBFLAGS global.
|
||
|
||
proc gdb_spawn_with_cmdline_opts { cmdline_flags } {
|
||
global GDBFLAGS
|
||
|
||
set saved_gdbflags $GDBFLAGS
|
||
|
||
if {$GDBFLAGS != ""} {
|
||
append GDBFLAGS " "
|
||
}
|
||
append GDBFLAGS $cmdline_flags
|
||
|
||
set res [gdb_spawn]
|
||
|
||
set GDBFLAGS $saved_gdbflags
|
||
|
||
return $res
|
||
}
|
||
|
||
# Start gdb running, wait for prompt, and disable the pagers.
|
||
|
||
# Overridable function -- you can override this function in your
|
||
# baseboard file.
|
||
|
||
proc gdb_start { } {
|
||
default_gdb_start
|
||
}
|
||
|
||
proc gdb_exit { } {
|
||
catch default_gdb_exit
|
||
}
|
||
|
||
# Return true if we can spawn a program on the target and attach to
|
||
# it.
|
||
|
||
proc can_spawn_for_attach { } {
|
||
# We use exp_pid to get the inferior's pid, assuming that gives
|
||
# back the pid of the program. On remote boards, that would give
|
||
# us instead the PID of e.g., the ssh client, etc.
|
||
if [is_remote target] then {
|
||
verbose -log "can't spawn for attach (target is remote)"
|
||
return 0
|
||
}
|
||
|
||
# The "attach" command doesn't make sense when the target is
|
||
# stub-like, where GDB finds the program already started on
|
||
# initial connection.
|
||
if {[target_info exists use_gdb_stub]} {
|
||
verbose -log "can't spawn for attach (target is stub)"
|
||
return 0
|
||
}
|
||
|
||
# Assume yes.
|
||
return 1
|
||
}
|
||
|
||
# Centralize the failure checking of "attach" command.
|
||
# Return 0 if attach failed, otherwise return 1.
|
||
|
||
proc gdb_attach { testpid args } {
|
||
parse_args {
|
||
{pattern ""}
|
||
}
|
||
|
||
if { [llength $args] != 0 } {
|
||
error "Unexpected arguments: $args"
|
||
}
|
||
|
||
gdb_test_multiple "attach $testpid" "attach" {
|
||
-re -wrap "Attaching to.*ptrace: Operation not permitted\\." {
|
||
unsupported "$gdb_test_name (Operation not permitted)"
|
||
return 0
|
||
}
|
||
-re -wrap "$pattern" {
|
||
pass $gdb_test_name
|
||
return 1
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Start gdb with "--pid $TESTPID" on the command line and wait for the prompt.
|
||
# Return 1 if GDB managed to start and attach to the process, 0 otherwise.
|
||
|
||
proc_with_prefix gdb_spawn_attach_cmdline { testpid } {
|
||
if ![can_spawn_for_attach] {
|
||
# The caller should have checked can_spawn_for_attach itself
|
||
# before getting here.
|
||
error "can't spawn for attach with this target/board"
|
||
}
|
||
|
||
set test "start gdb with --pid"
|
||
set res [gdb_spawn_with_cmdline_opts "-quiet --pid=$testpid"]
|
||
if { $res != 0 } {
|
||
fail $test
|
||
return 0
|
||
}
|
||
|
||
gdb_test_multiple "" "$test" {
|
||
-re -wrap "ptrace: Operation not permitted\\." {
|
||
unsupported "$gdb_test_name (operation not permitted)"
|
||
return 0
|
||
}
|
||
-re -wrap "ptrace: No such process\\." {
|
||
fail "$gdb_test_name (no such process)"
|
||
return 0
|
||
}
|
||
-re -wrap "Attaching to process $testpid\r\n.*" {
|
||
pass $gdb_test_name
|
||
}
|
||
}
|
||
|
||
# Check that we actually attached to a process, in case the
|
||
# error message is not caught by the patterns above.
|
||
gdb_test_multiple "info thread" "" {
|
||
-re -wrap "No threads\\." {
|
||
fail "$gdb_test_name (no thread)"
|
||
}
|
||
-re -wrap "Id.*" {
|
||
pass $gdb_test_name
|
||
return 1
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Kill a progress previously started with spawn_wait_for_attach, and
|
||
# reap its wait status. PROC_SPAWN_ID is the spawn id associated with
|
||
# the process.
|
||
|
||
proc kill_wait_spawned_process { proc_spawn_id } {
|
||
set pid [exp_pid -i $proc_spawn_id]
|
||
|
||
verbose -log "killing ${pid}"
|
||
remote_exec build "kill -9 ${pid}"
|
||
|
||
verbose -log "closing ${proc_spawn_id}"
|
||
catch "close -i $proc_spawn_id"
|
||
verbose -log "waiting for ${proc_spawn_id}"
|
||
|
||
# If somehow GDB ends up still attached to the process here, a
|
||
# blocking wait hangs until gdb is killed (or until gdb / the
|
||
# ptracer reaps the exit status too, but that won't happen because
|
||
# something went wrong.) Passing -nowait makes expect tell Tcl to
|
||
# wait for the PID in the background. That's fine because we
|
||
# don't care about the exit status. */
|
||
wait -nowait -i $proc_spawn_id
|
||
}
|
||
|
||
# Returns the process id corresponding to the given spawn id.
|
||
|
||
proc spawn_id_get_pid { spawn_id } {
|
||
set testpid [exp_pid -i $spawn_id]
|
||
|
||
if { [istarget "*-*-cygwin*"] } {
|
||
# testpid is the Cygwin PID, GDB uses the Windows PID, which
|
||
# might be different due to the way fork/exec works.
|
||
set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
|
||
}
|
||
|
||
return $testpid
|
||
}
|
||
|
||
# Start a set of programs running and then wait for a bit, to be sure
|
||
# that they can be attached to. Return a list of processes spawn IDs,
|
||
# one element for each process spawned. It's a test error to call
|
||
# this when [can_spawn_for_attach] is false.
|
||
|
||
proc spawn_wait_for_attach { executable_list } {
|
||
set spawn_id_list {}
|
||
|
||
if ![can_spawn_for_attach] {
|
||
# The caller should have checked can_spawn_for_attach itself
|
||
# before getting here.
|
||
error "can't spawn for attach with this target/board"
|
||
}
|
||
|
||
foreach {executable} $executable_list {
|
||
# Note we use Expect's spawn, not Tcl's exec, because with
|
||
# spawn we control when to wait for/reap the process. That
|
||
# allows killing the process by PID without being subject to
|
||
# pid-reuse races.
|
||
lappend spawn_id_list [remote_spawn target $executable]
|
||
}
|
||
|
||
sleep 2
|
||
|
||
return $spawn_id_list
|
||
}
|
||
|
||
#
|
||
# gdb_load_cmd -- load a file into the debugger.
|
||
# ARGS - additional args to load command.
|
||
# return a -1 if anything goes wrong.
|
||
#
|
||
proc gdb_load_cmd { args } {
|
||
global gdb_prompt
|
||
|
||
if [target_info exists gdb_load_timeout] {
|
||
set loadtimeout [target_info gdb_load_timeout]
|
||
} else {
|
||
set loadtimeout 1600
|
||
}
|
||
send_gdb "load $args\n"
|
||
verbose "Timeout is now $loadtimeout seconds" 2
|
||
gdb_expect $loadtimeout {
|
||
-re "Loading section\[^\r\]*\r\n" {
|
||
exp_continue
|
||
}
|
||
-re "Start address\[\r\]*\r\n" {
|
||
exp_continue
|
||
}
|
||
-re "Transfer rate\[\r\]*\r\n" {
|
||
exp_continue
|
||
}
|
||
-re "Memory access error\[^\r\]*\r\n" {
|
||
perror "Failed to load program"
|
||
return -1
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
return 0
|
||
}
|
||
-re "(.*)\r\n$gdb_prompt " {
|
||
perror "Unexpected reponse from 'load' -- $expect_out(1,string)"
|
||
return -1
|
||
}
|
||
timeout {
|
||
perror "Timed out trying to load $args."
|
||
return -1
|
||
}
|
||
}
|
||
return -1
|
||
}
|
||
|
||
# Invoke "gcore". CORE is the name of the core file to write. TEST
|
||
# is the name of the test case. This will return 1 if the core file
|
||
# was created, 0 otherwise. If this fails to make a core file because
|
||
# this configuration of gdb does not support making core files, it
|
||
# will call "unsupported", not "fail". However, if this fails to make
|
||
# a core file for some other reason, then it will call "fail".
|
||
|
||
proc gdb_gcore_cmd {core test} {
|
||
global gdb_prompt
|
||
|
||
set result 0
|
||
gdb_test_multiple "gcore $core" $test {
|
||
-re "Saved corefile .*\[\r\n\]+$gdb_prompt $" {
|
||
pass $test
|
||
set result 1
|
||
}
|
||
-re "(?:Can't create a corefile|Target does not support core file generation\\.)\[\r\n\]+$gdb_prompt $" {
|
||
unsupported $test
|
||
}
|
||
}
|
||
|
||
return $result
|
||
}
|
||
|
||
# Load core file CORE. TEST is the name of the test case.
|
||
# This will record a pass/fail for loading the core file.
|
||
# Returns:
|
||
# 1 - core file is successfully loaded
|
||
# 0 - core file loaded but has a non fatal error
|
||
# -1 - core file failed to load
|
||
|
||
proc gdb_core_cmd { core test } {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "core $core" "$test" {
|
||
-re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
|
||
exp_continue
|
||
}
|
||
-re " is not a core dump:.*\r\n$gdb_prompt $" {
|
||
fail "$test (bad file format)"
|
||
return -1
|
||
}
|
||
-re -wrap "[string_to_regexp $core]: No such file or directory.*" {
|
||
fail "$test (file not found)"
|
||
return -1
|
||
}
|
||
-re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
|
||
fail "$test (incomplete note section)"
|
||
return 0
|
||
}
|
||
-re "Core was generated by .*\r\n$gdb_prompt $" {
|
||
pass "$test"
|
||
return 1
|
||
}
|
||
-re ".*$gdb_prompt $" {
|
||
fail "$test"
|
||
return -1
|
||
}
|
||
timeout {
|
||
fail "$test (timeout)"
|
||
return -1
|
||
}
|
||
}
|
||
fail "unsupported output from 'core' command"
|
||
return -1
|
||
}
|
||
|
||
# Return the filename to download to the target and load on the target
|
||
# for this shared library. Normally just LIBNAME, unless shared libraries
|
||
# for this target have separate link and load images.
|
||
|
||
proc shlib_target_file { libname } {
|
||
return $libname
|
||
}
|
||
|
||
# Return the filename GDB will load symbols from when debugging this
|
||
# shared library. Normally just LIBNAME, unless shared libraries for
|
||
# this target have separate link and load images.
|
||
|
||
proc shlib_symbol_file { libname } {
|
||
return $libname
|
||
}
|
||
|
||
# Return the filename to download to the target and load for this
|
||
# executable. Normally just BINFILE unless it is renamed to something
|
||
# else for this target.
|
||
|
||
proc exec_target_file { binfile } {
|
||
return $binfile
|
||
}
|
||
|
||
# Return the filename GDB will load symbols from when debugging this
|
||
# executable. Normally just BINFILE unless executables for this target
|
||
# have separate files for symbols.
|
||
|
||
proc exec_symbol_file { binfile } {
|
||
return $binfile
|
||
}
|
||
|
||
# Rename the executable file. Normally this is just BINFILE1 being renamed
|
||
# to BINFILE2, but some targets require multiple binary files.
|
||
proc gdb_rename_execfile { binfile1 binfile2 } {
|
||
file rename -force [exec_target_file ${binfile1}] \
|
||
[exec_target_file ${binfile2}]
|
||
if { [exec_target_file ${binfile1}] != [exec_symbol_file ${binfile1}] } {
|
||
file rename -force [exec_symbol_file ${binfile1}] \
|
||
[exec_symbol_file ${binfile2}]
|
||
}
|
||
}
|
||
|
||
# "Touch" the executable file to update the date. Normally this is just
|
||
# BINFILE, but some targets require multiple files.
|
||
proc gdb_touch_execfile { binfile } {
|
||
set time [clock seconds]
|
||
file mtime [exec_target_file ${binfile}] $time
|
||
if { [exec_target_file ${binfile}] != [exec_symbol_file ${binfile}] } {
|
||
file mtime [exec_symbol_file ${binfile}] $time
|
||
}
|
||
}
|
||
|
||
# Like remote_download but provides a gdb-specific behavior.
|
||
#
|
||
# If the destination board is remote, the local file FROMFILE is transferred as
|
||
# usual with remote_download to TOFILE on the remote board. The destination
|
||
# filename is added to the CLEANFILES global, so it can be cleaned up at the
|
||
# end of the test.
|
||
#
|
||
# If the destination board is local, the destination path TOFILE is passed
|
||
# through standard_output_file, and FROMFILE is copied there.
|
||
#
|
||
# In both cases, if TOFILE is omitted, it defaults to the [file tail] of
|
||
# FROMFILE.
|
||
|
||
proc gdb_remote_download {dest fromfile {tofile {}}} {
|
||
# If TOFILE is not given, default to the same filename as FROMFILE.
|
||
if {[string length $tofile] == 0} {
|
||
set tofile [file tail $fromfile]
|
||
}
|
||
|
||
if {[is_remote $dest]} {
|
||
# When the DEST is remote, we simply send the file to DEST.
|
||
global cleanfiles
|
||
|
||
set destname [remote_download $dest $fromfile $tofile]
|
||
lappend cleanfiles $destname
|
||
|
||
return $destname
|
||
} else {
|
||
# When the DEST is local, we copy the file to the test directory (where
|
||
# the executable is).
|
||
#
|
||
# Note that we pass TOFILE through standard_output_file, regardless of
|
||
# whether it is absolute or relative, because we don't want the tests
|
||
# to be able to write outside their standard output directory.
|
||
|
||
set tofile [standard_output_file $tofile]
|
||
|
||
file copy -force $fromfile $tofile
|
||
|
||
return $tofile
|
||
}
|
||
}
|
||
|
||
# gdb_load_shlib LIB...
|
||
#
|
||
# Copy the listed library to the target.
|
||
|
||
proc gdb_load_shlib { file } {
|
||
global gdb_spawn_id
|
||
|
||
if ![info exists gdb_spawn_id] {
|
||
perror "gdb_load_shlib: GDB is not running"
|
||
}
|
||
|
||
set dest [gdb_remote_download target [shlib_target_file $file]]
|
||
|
||
if {[is_remote target]} {
|
||
# If the target is remote, we need to tell gdb where to find the
|
||
# libraries.
|
||
#
|
||
# We could set this even when not testing remotely, but a user
|
||
# generally won't set it unless necessary. In order to make the tests
|
||
# more like the real-life scenarios, we don't set it for local testing.
|
||
gdb_test "set solib-search-path [file dirname $file]" "" ""
|
||
}
|
||
|
||
return $dest
|
||
}
|
||
|
||
#
|
||
# gdb_load -- load a file into the debugger. Specifying no file
|
||
# defaults to the executable currently being debugged.
|
||
# The return value is 0 for success, -1 for failure.
|
||
# Many files in config/*.exp override this procedure.
|
||
#
|
||
proc gdb_load { arg } {
|
||
if { $arg != "" } {
|
||
return [gdb_file_cmd $arg]
|
||
}
|
||
return 0
|
||
}
|
||
|
||
#
|
||
# with_complaints -- Execute BODY and set complaints temporary to N for the
|
||
# duration.
|
||
#
|
||
proc with_complaints { n body } {
|
||
global decimal
|
||
|
||
# Save current setting of complaints.
|
||
set save ""
|
||
set show_complaints_re \
|
||
"Max number of complaints about incorrect symbols is ($decimal)\\."
|
||
gdb_test_multiple "show complaints" "" {
|
||
-re -wrap $show_complaints_re {
|
||
set save $expect_out(1,string)
|
||
}
|
||
}
|
||
|
||
if { $save == "" } {
|
||
perror "Did not manage to set complaints"
|
||
} else {
|
||
# Set complaints.
|
||
gdb_test_no_output -nopass "set complaints $n"
|
||
}
|
||
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
# Restore saved setting of complaints.
|
||
if { $save != "" } {
|
||
gdb_test_no_output -nopass "set complaints $save"
|
||
}
|
||
|
||
if {$code == 1} {
|
||
global errorInfo errorCode
|
||
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} else {
|
||
return -code $code $result
|
||
}
|
||
}
|
||
|
||
#
|
||
# gdb_load_no_complaints -- As gdb_load, but in addition verifies that
|
||
# loading caused no symbol reading complaints.
|
||
#
|
||
proc gdb_load_no_complaints { arg } {
|
||
global gdb_prompt gdb_file_cmd_msg decimal
|
||
|
||
# Temporarily set complaint to a small non-zero number.
|
||
with_complaints 5 {
|
||
gdb_load $arg
|
||
}
|
||
|
||
# Verify that there were no complaints.
|
||
set re \
|
||
[multi_line \
|
||
"^(Reading symbols from \[^\r\n\]*" \
|
||
")+(Expanding full symbols from \[^\r\n\]*" \
|
||
")?$gdb_prompt $"]
|
||
gdb_assert {[regexp $re $gdb_file_cmd_msg]} "No complaints"
|
||
}
|
||
|
||
# gdb_reload -- load a file into the target. Called before "running",
|
||
# either the first time or after already starting the program once,
|
||
# for remote targets. Most files that override gdb_load should now
|
||
# override this instead.
|
||
#
|
||
# INFERIOR_ARGS contains the arguments to pass to the inferiors, as a
|
||
# single string to get interpreted by a shell. If the target board
|
||
# overriding gdb_reload is a "stub", then it should arrange things such
|
||
# these arguments make their way to the inferior process.
|
||
|
||
proc gdb_reload { {inferior_args {}} } {
|
||
# For the benefit of existing configurations, default to gdb_load.
|
||
# Specifying no file defaults to the executable currently being
|
||
# debugged.
|
||
return [gdb_load ""]
|
||
}
|
||
|
||
proc gdb_continue { function } {
|
||
global decimal
|
||
|
||
return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
|
||
}
|
||
|
||
# Default implementation of gdb_init.
|
||
proc default_gdb_init { test_file_name } {
|
||
global gdb_wrapper_initialized
|
||
global gdb_wrapper_target
|
||
global gdb_test_file_name
|
||
global cleanfiles
|
||
global pf_prefix
|
||
|
||
# Reset the timeout value to the default. This way, any testcase
|
||
# that changes the timeout value without resetting it cannot affect
|
||
# the timeout used in subsequent testcases.
|
||
global gdb_test_timeout
|
||
global timeout
|
||
set timeout $gdb_test_timeout
|
||
|
||
if { [regexp ".*gdb\.reverse\/.*" $test_file_name]
|
||
&& [target_info exists gdb_reverse_timeout] } {
|
||
set timeout [target_info gdb_reverse_timeout]
|
||
}
|
||
|
||
# If GDB_INOTIFY is given, check for writes to '.'. This is a
|
||
# debugging tool to help confirm that the test suite is
|
||
# parallel-safe. You need "inotifywait" from the
|
||
# inotify-tools package to use this.
|
||
global GDB_INOTIFY inotify_pid
|
||
if {[info exists GDB_INOTIFY] && ![info exists inotify_pid]} {
|
||
global outdir tool inotify_log_file
|
||
|
||
set exclusions {outputs temp gdb[.](log|sum) cache}
|
||
set exclusion_re ([join $exclusions |])
|
||
|
||
set inotify_log_file [standard_temp_file inotify.out]
|
||
set inotify_pid [exec inotifywait -r -m -e move,create,delete . \
|
||
--exclude $exclusion_re \
|
||
|& tee -a $outdir/$tool.log $inotify_log_file &]
|
||
|
||
# Wait for the watches; hopefully this is long enough.
|
||
sleep 2
|
||
|
||
# Clear the log so that we don't emit a warning the first time
|
||
# we check it.
|
||
set fd [open $inotify_log_file w]
|
||
close $fd
|
||
}
|
||
|
||
# Block writes to all banned variables, and invocation of all
|
||
# banned procedures...
|
||
global banned_variables
|
||
global banned_procedures
|
||
global banned_traced
|
||
if (!$banned_traced) {
|
||
foreach banned_var $banned_variables {
|
||
global "$banned_var"
|
||
trace add variable "$banned_var" write error
|
||
}
|
||
foreach banned_proc $banned_procedures {
|
||
global "$banned_proc"
|
||
trace add execution "$banned_proc" enter error
|
||
}
|
||
set banned_traced 1
|
||
}
|
||
|
||
# We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same
|
||
# messages as expected.
|
||
setenv LC_ALL C
|
||
setenv LC_CTYPE C
|
||
setenv LANG C
|
||
|
||
# Don't let a .inputrc file or an existing setting of INPUTRC mess
|
||
# up the test results. Certain tests (style tests and TUI tests)
|
||
# want to set the terminal to a non-"dumb" value, and for those we
|
||
# want to disable bracketed paste mode. Versions of Readline
|
||
# before 8.0 will not understand this and will issue a warning.
|
||
# We tried using a $if to guard it, but Readline 8.1 had a bug in
|
||
# its version-comparison code that prevented this for working.
|
||
setenv INPUTRC [cached_file inputrc "set enable-bracketed-paste off"]
|
||
|
||
# This disables style output, which would interfere with many
|
||
# tests.
|
||
setenv TERM "dumb"
|
||
|
||
# If DEBUGINFOD_URLS is set, gdb will try to download sources and
|
||
# debug info for f.i. system libraries. Prevent this.
|
||
unset -nocomplain ::env(DEBUGINFOD_URLS)
|
||
|
||
# Ensure that GDBHISTFILE and GDBHISTSIZE are removed from the
|
||
# environment, we don't want these modifications to the history
|
||
# settings.
|
||
unset -nocomplain ::env(GDBHISTFILE)
|
||
unset -nocomplain ::env(GDBHISTSIZE)
|
||
|
||
# Ensure that XDG_CONFIG_HOME is not set. Some tests setup a fake
|
||
# home directory in order to test loading settings from gdbinit.
|
||
# If XDG_CONFIG_HOME is set then GDB will load a gdbinit from
|
||
# there (if one is present) rather than the home directory setup
|
||
# in the test.
|
||
unset -nocomplain ::env(XDG_CONFIG_HOME)
|
||
|
||
# Initialize GDB's pty with a fixed size, to make sure we avoid pagination
|
||
# during startup. See "man expect" for details about stty_init.
|
||
global stty_init
|
||
set stty_init "rows 25 cols 80"
|
||
|
||
# Some tests (for example gdb.base/maint.exp) shell out from gdb to use
|
||
# grep. Clear GREP_OPTIONS to make the behavior predictable,
|
||
# especially having color output turned on can cause tests to fail.
|
||
setenv GREP_OPTIONS ""
|
||
|
||
# Clear $gdbserver_reconnect_p.
|
||
global gdbserver_reconnect_p
|
||
set gdbserver_reconnect_p 1
|
||
unset gdbserver_reconnect_p
|
||
|
||
# Clear $last_loaded_file
|
||
global last_loaded_file
|
||
unset -nocomplain last_loaded_file
|
||
|
||
# Reset GDB number of instances
|
||
global gdb_instances
|
||
set gdb_instances 0
|
||
|
||
set cleanfiles {}
|
||
|
||
set gdb_test_file_name [file rootname [file tail $test_file_name]]
|
||
|
||
# Make sure that the wrapper is rebuilt
|
||
# with the appropriate multilib option.
|
||
if { $gdb_wrapper_target != [current_target_name] } {
|
||
set gdb_wrapper_initialized 0
|
||
}
|
||
|
||
# Unlike most tests, we have a small number of tests that generate
|
||
# a very large amount of output. We therefore increase the expect
|
||
# buffer size to be able to contain the entire test output. This
|
||
# is especially needed by gdb.base/info-macros.exp.
|
||
match_max -d 65536
|
||
# Also set this value for the currently running GDB.
|
||
match_max [match_max -d]
|
||
|
||
# We want to add the name of the TCL testcase to the PASS/FAIL messages.
|
||
set pf_prefix "[file tail [file dirname $test_file_name]]/[file tail $test_file_name]:"
|
||
|
||
global gdb_prompt
|
||
if [target_info exists gdb_prompt] {
|
||
set gdb_prompt [target_info gdb_prompt]
|
||
} else {
|
||
set gdb_prompt "\\(gdb\\)"
|
||
}
|
||
global use_gdb_stub
|
||
if [info exists use_gdb_stub] {
|
||
unset use_gdb_stub
|
||
}
|
||
|
||
gdb_setup_known_globals
|
||
|
||
if { [info procs ::gdb_tcl_unknown] != "" } {
|
||
# Dejagnu overrides proc unknown. The dejagnu version may trigger in a
|
||
# test-case but abort the entire test run. To fix this, we install a
|
||
# local version here, which reverts dejagnu's override, and restore
|
||
# dejagnu's version in gdb_finish.
|
||
rename ::unknown ::dejagnu_unknown
|
||
proc unknown { args } {
|
||
# Use tcl's unknown.
|
||
set cmd [lindex $args 0]
|
||
unresolved "testcase aborted due to invalid command name: $cmd"
|
||
return [uplevel 1 ::gdb_tcl_unknown $args]
|
||
}
|
||
}
|
||
}
|
||
|
||
# Return a path using GDB_PARALLEL.
|
||
# ARGS is a list of path elements to append to "$objdir/$GDB_PARALLEL".
|
||
# GDB_PARALLEL must be defined, the caller must check.
|
||
#
|
||
# The default value for GDB_PARALLEL is, canonically, ".".
|
||
# The catch is that tests don't expect an additional "./" in file paths so
|
||
# omit any directory for the default case.
|
||
# GDB_PARALLEL is written as "yes" for the default case in Makefile.in to mark
|
||
# its special handling.
|
||
|
||
proc make_gdb_parallel_path { args } {
|
||
global GDB_PARALLEL objdir
|
||
set joiner [list "file" "join" $objdir]
|
||
if { [info exists GDB_PARALLEL] && $GDB_PARALLEL != "yes" } {
|
||
lappend joiner $GDB_PARALLEL
|
||
}
|
||
set joiner [concat $joiner $args]
|
||
return [eval $joiner]
|
||
}
|
||
|
||
# Turn BASENAME into a full file name in the standard output
|
||
# directory. It is ok if BASENAME is the empty string; in this case
|
||
# the directory is returned.
|
||
|
||
proc standard_output_file {basename} {
|
||
global objdir subdir gdb_test_file_name
|
||
|
||
set dir [make_gdb_parallel_path outputs $subdir $gdb_test_file_name]
|
||
file mkdir $dir
|
||
# If running on MinGW, replace /c/foo with c:/foo
|
||
if { [ishost *-*-mingw*] } {
|
||
set dir [exec sh -c "cd ${dir} && pwd -W"]
|
||
}
|
||
return [file join $dir $basename]
|
||
}
|
||
|
||
# Turn BASENAME into a full file name in the standard output directory. If
|
||
# GDB has been launched more than once then append the count, starting with
|
||
# a ".1" postfix.
|
||
|
||
proc standard_output_file_with_gdb_instance {basename} {
|
||
global gdb_instances
|
||
set count $gdb_instances
|
||
|
||
if {$count == 0} {
|
||
return [standard_output_file $basename]
|
||
}
|
||
return [standard_output_file ${basename}.${count}]
|
||
}
|
||
|
||
# Return the name of a file in our standard temporary directory.
|
||
|
||
proc standard_temp_file {basename} {
|
||
# Since a particular runtest invocation is only executing a single test
|
||
# file at any given time, we can use the runtest pid to build the
|
||
# path of the temp directory.
|
||
set dir [make_gdb_parallel_path temp [pid]]
|
||
file mkdir $dir
|
||
return [file join $dir $basename]
|
||
}
|
||
|
||
# Rename file A to file B, if B does not already exists. Otherwise, leave B
|
||
# as is and delete A. Return 1 if rename happened.
|
||
|
||
proc tentative_rename { a b } {
|
||
global errorInfo errorCode
|
||
set code [catch {file rename -- $a $b} result]
|
||
if { $code == 1 && [lindex $errorCode 0] == "POSIX" \
|
||
&& [lindex $errorCode 1] == "EEXIST" } {
|
||
file delete $a
|
||
return 0
|
||
}
|
||
if {$code == 1} {
|
||
return -code error -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} elseif {$code > 1} {
|
||
return -code $code $result
|
||
}
|
||
return 1
|
||
}
|
||
|
||
# Create a file with name FILENAME and contents TXT in the cache directory.
|
||
# If EXECUTABLE, mark the new file for execution.
|
||
|
||
proc cached_file { filename txt {executable 0}} {
|
||
set filename [make_gdb_parallel_path cache $filename]
|
||
|
||
if { [file exists $filename] } {
|
||
return $filename
|
||
}
|
||
|
||
set dir [file dirname $filename]
|
||
file mkdir $dir
|
||
|
||
set tmp_filename $filename.[pid]
|
||
set fd [open $tmp_filename w]
|
||
puts $fd $txt
|
||
close $fd
|
||
|
||
if { $executable } {
|
||
exec chmod +x $tmp_filename
|
||
}
|
||
tentative_rename $tmp_filename $filename
|
||
|
||
return $filename
|
||
}
|
||
|
||
# Set 'testfile', 'srcfile', and 'binfile'.
|
||
#
|
||
# ARGS is a list of source file specifications.
|
||
# Without any arguments, the .exp file's base name is used to
|
||
# compute the source file name. The ".c" extension is added in this case.
|
||
# If ARGS is not empty, each entry is a source file specification.
|
||
# If the specification starts with a "." or "-", it is treated as a suffix
|
||
# to append to the .exp file's base name.
|
||
# If the specification is the empty string, it is treated as if it
|
||
# were ".c".
|
||
# Otherwise it is a file name.
|
||
# The first file in the list is used to set the 'srcfile' global.
|
||
# Each subsequent name is used to set 'srcfile2', 'srcfile3', etc.
|
||
#
|
||
# Most tests should call this without arguments.
|
||
#
|
||
# If a completely different binary file name is needed, then it
|
||
# should be handled in the .exp file with a suitable comment.
|
||
|
||
proc standard_testfile {args} {
|
||
global gdb_test_file_name
|
||
global subdir
|
||
global gdb_test_file_last_vars
|
||
|
||
# Outputs.
|
||
global testfile binfile
|
||
|
||
set testfile $gdb_test_file_name
|
||
set binfile [standard_output_file ${testfile}]
|
||
|
||
if {[llength $args] == 0} {
|
||
set args .c
|
||
}
|
||
|
||
# Unset our previous output variables.
|
||
# This can help catch hidden bugs.
|
||
if {[info exists gdb_test_file_last_vars]} {
|
||
foreach varname $gdb_test_file_last_vars {
|
||
global $varname
|
||
catch {unset $varname}
|
||
}
|
||
}
|
||
# 'executable' is often set by tests.
|
||
set gdb_test_file_last_vars {executable}
|
||
|
||
set suffix ""
|
||
foreach arg $args {
|
||
set varname srcfile$suffix
|
||
global $varname
|
||
|
||
# Handle an extension.
|
||
if {$arg == ""} {
|
||
set arg $testfile.c
|
||
} else {
|
||
set first [string range $arg 0 0]
|
||
if { $first == "." || $first == "-" } {
|
||
set arg $testfile$arg
|
||
}
|
||
}
|
||
|
||
set $varname $arg
|
||
lappend gdb_test_file_last_vars $varname
|
||
|
||
if {$suffix == ""} {
|
||
set suffix 2
|
||
} else {
|
||
incr suffix
|
||
}
|
||
}
|
||
}
|
||
|
||
# The default timeout used when testing GDB commands. We want to use
|
||
# the same timeout as the default dejagnu timeout, unless the user has
|
||
# already provided a specific value (probably through a site.exp file).
|
||
global gdb_test_timeout
|
||
if ![info exists gdb_test_timeout] {
|
||
set gdb_test_timeout $timeout
|
||
}
|
||
|
||
# A list of global variables that GDB testcases should not use.
|
||
# We try to prevent their use by monitoring write accesses and raising
|
||
# an error when that happens.
|
||
set banned_variables { bug_id prms_id }
|
||
|
||
# A list of procedures that GDB testcases should not use.
|
||
# We try to prevent their use by monitoring invocations and raising
|
||
# an error when that happens.
|
||
set banned_procedures { strace }
|
||
|
||
# gdb_init is called by runtest at start, but also by several
|
||
# tests directly; gdb_finish is only called from within runtest after
|
||
# each test source execution.
|
||
# Placing several traces by repetitive calls to gdb_init leads
|
||
# to problems, as only one trace is removed in gdb_finish.
|
||
# To overcome this possible problem, we add a variable that records
|
||
# if the banned variables and procedures are already traced.
|
||
set banned_traced 0
|
||
|
||
# Global array that holds the name of all global variables at the time
|
||
# a test script is started. After the test script has completed any
|
||
# global not in this list is deleted.
|
||
array set gdb_known_globals {}
|
||
|
||
# Setup the GDB_KNOWN_GLOBALS array with the names of all current
|
||
# global variables.
|
||
proc gdb_setup_known_globals {} {
|
||
global gdb_known_globals
|
||
|
||
array set gdb_known_globals {}
|
||
foreach varname [info globals] {
|
||
set gdb_known_globals($varname) 1
|
||
}
|
||
}
|
||
|
||
# Cleanup the global namespace. Any global not in the
|
||
# GDB_KNOWN_GLOBALS array is unset, this ensures we don't "leak"
|
||
# globals from one test script to another.
|
||
proc gdb_cleanup_globals {} {
|
||
global gdb_known_globals gdb_persistent_globals
|
||
|
||
foreach varname [info globals] {
|
||
if {![info exists gdb_known_globals($varname)]} {
|
||
if { [info exists gdb_persistent_globals($varname)] } {
|
||
continue
|
||
}
|
||
uplevel #0 unset $varname
|
||
}
|
||
}
|
||
}
|
||
|
||
# Create gdb_tcl_unknown, a copy tcl's ::unknown, provided it's present as a
|
||
# proc.
|
||
set temp [interp create]
|
||
if { [interp eval $temp "info procs ::unknown"] != "" } {
|
||
set old_args [interp eval $temp "info args ::unknown"]
|
||
set old_body [interp eval $temp "info body ::unknown"]
|
||
eval proc gdb_tcl_unknown {$old_args} {$old_body}
|
||
}
|
||
interp delete $temp
|
||
unset temp
|
||
|
||
# GDB implementation of ${tool}_init. Called right before executing the
|
||
# test-case.
|
||
# Overridable function -- you can override this function in your
|
||
# baseboard file.
|
||
proc gdb_init { args } {
|
||
# A baseboard file overriding this proc and calling the default version
|
||
# should behave the same as this proc. So, don't add code here, but to
|
||
# the default version instead.
|
||
return [default_gdb_init {*}$args]
|
||
}
|
||
|
||
# GDB implementation of ${tool}_finish. Called right after executing the
|
||
# test-case.
|
||
proc gdb_finish { } {
|
||
global gdbserver_reconnect_p
|
||
global gdb_prompt
|
||
global cleanfiles
|
||
global known_globals
|
||
|
||
if { [info procs ::gdb_tcl_unknown] != "" } {
|
||
# Restore dejagnu's version of proc unknown.
|
||
rename ::unknown ""
|
||
rename ::dejagnu_unknown ::unknown
|
||
}
|
||
|
||
# Exit first, so that the files are no longer in use.
|
||
gdb_exit
|
||
|
||
if { [llength $cleanfiles] > 0 } {
|
||
eval remote_file target delete $cleanfiles
|
||
set cleanfiles {}
|
||
}
|
||
|
||
# Unblock write access to the banned variables. Dejagnu typically
|
||
# resets some of them between testcases.
|
||
global banned_variables
|
||
global banned_procedures
|
||
global banned_traced
|
||
if ($banned_traced) {
|
||
foreach banned_var $banned_variables {
|
||
global "$banned_var"
|
||
trace remove variable "$banned_var" write error
|
||
}
|
||
foreach banned_proc $banned_procedures {
|
||
global "$banned_proc"
|
||
trace remove execution "$banned_proc" enter error
|
||
}
|
||
set banned_traced 0
|
||
}
|
||
|
||
global gdb_finish_hooks
|
||
foreach gdb_finish_hook $gdb_finish_hooks {
|
||
$gdb_finish_hook
|
||
}
|
||
set gdb_finish_hooks [list]
|
||
|
||
gdb_cleanup_globals
|
||
}
|
||
|
||
global debug_format
|
||
set debug_format "unknown"
|
||
|
||
# Run the gdb command "info source" and extract the debugging format
|
||
# information from the output and save it in debug_format.
|
||
|
||
proc get_debug_format { } {
|
||
global gdb_prompt
|
||
global expect_out
|
||
global debug_format
|
||
|
||
set debug_format "unknown"
|
||
send_gdb "info source\n"
|
||
gdb_expect 10 {
|
||
-re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
|
||
set debug_format $expect_out(1,string)
|
||
verbose "debug format is $debug_format"
|
||
return 1
|
||
}
|
||
-re "No current source file.\r\n$gdb_prompt $" {
|
||
perror "get_debug_format used when no current source file"
|
||
return 0
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
warning "couldn't check debug format (no valid response)."
|
||
return 1
|
||
}
|
||
timeout {
|
||
warning "couldn't check debug format (timeout)."
|
||
return 1
|
||
}
|
||
}
|
||
}
|
||
|
||
# Return true if FORMAT matches the debug format the current test was
|
||
# compiled with. FORMAT is a shell-style globbing pattern; it can use
|
||
# `*', `[...]', and so on.
|
||
#
|
||
# This function depends on variables set by `get_debug_format', above.
|
||
|
||
proc test_debug_format {format} {
|
||
global debug_format
|
||
|
||
return [expr [string match $format $debug_format] != 0]
|
||
}
|
||
|
||
# Like setup_xfail, but takes the name of a debug format (DWARF 1,
|
||
# COFF, stabs, etc). If that format matches the format that the
|
||
# current test was compiled with, then the next test is expected to
|
||
# fail for any target. Returns 1 if the next test or set of tests is
|
||
# expected to fail, 0 otherwise (or if it is unknown). Must have
|
||
# previously called get_debug_format.
|
||
proc setup_xfail_format { format } {
|
||
set ret [test_debug_format $format]
|
||
|
||
if {$ret} then {
|
||
setup_xfail "*-*-*"
|
||
}
|
||
return $ret
|
||
}
|
||
|
||
# gdb_get_line_number TEXT [FILE]
|
||
#
|
||
# Search the source file FILE, and return the line number of the
|
||
# first line containing TEXT. If no match is found, an error is thrown.
|
||
#
|
||
# TEXT is a string literal, not a regular expression.
|
||
#
|
||
# The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
|
||
# specified, and does not start with "/", then it is assumed to be in
|
||
# "$srcdir/$subdir". This is awkward, and can be fixed in the future,
|
||
# by changing the callers and the interface at the same time.
|
||
# In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
|
||
# gdb.base/ena-dis-br.exp.
|
||
#
|
||
# Use this function to keep your test scripts independent of the
|
||
# exact line numbering of the source file. Don't write:
|
||
#
|
||
# send_gdb "break 20"
|
||
#
|
||
# This means that if anyone ever edits your test's source file,
|
||
# your test could break. Instead, put a comment like this on the
|
||
# source file line you want to break at:
|
||
#
|
||
# /* breakpoint spot: frotz.exp: test name */
|
||
#
|
||
# and then write, in your test script (which we assume is named
|
||
# frotz.exp):
|
||
#
|
||
# send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
|
||
#
|
||
# (Yes, Tcl knows how to handle the nested quotes and brackets.
|
||
# Try this:
|
||
# $ tclsh
|
||
# % puts "foo [lindex "bar baz" 1]"
|
||
# foo baz
|
||
# %
|
||
# Tcl is quite clever, for a little stringy language.)
|
||
#
|
||
# ===
|
||
#
|
||
# The previous implementation of this procedure used the gdb search command.
|
||
# This version is different:
|
||
#
|
||
# . It works with MI, and it also works when gdb is not running.
|
||
#
|
||
# . It operates on the build machine, not the host machine.
|
||
#
|
||
# . For now, this implementation fakes a current directory of
|
||
# $srcdir/$subdir to be compatible with the old implementation.
|
||
# This will go away eventually and some callers will need to
|
||
# be changed.
|
||
#
|
||
# . The TEXT argument is literal text and matches literally,
|
||
# not a regular expression as it was before.
|
||
#
|
||
# . State changes in gdb, such as changing the current file
|
||
# and setting $_, no longer happen.
|
||
#
|
||
# After a bit of time we can forget about the differences from the
|
||
# old implementation.
|
||
#
|
||
# --chastain 2004-08-05
|
||
|
||
proc gdb_get_line_number { text { file "" } } {
|
||
global srcdir
|
||
global subdir
|
||
global srcfile
|
||
|
||
if { "$file" == "" } then {
|
||
set file "$srcfile"
|
||
}
|
||
if { ! [regexp "^/" "$file"] } then {
|
||
set file "$srcdir/$subdir/$file"
|
||
}
|
||
|
||
if { [ catch { set fd [open "$file"] } message ] } then {
|
||
error "$message"
|
||
}
|
||
|
||
set found -1
|
||
for { set line 1 } { 1 } { incr line } {
|
||
if { [ catch { set nchar [gets "$fd" body] } message ] } then {
|
||
error "$message"
|
||
}
|
||
if { $nchar < 0 } then {
|
||
break
|
||
}
|
||
if { [string first "$text" "$body"] >= 0 } then {
|
||
set found $line
|
||
break
|
||
}
|
||
}
|
||
|
||
if { [ catch { close "$fd" } message ] } then {
|
||
error "$message"
|
||
}
|
||
|
||
if {$found == -1} {
|
||
error "undefined tag \"$text\""
|
||
}
|
||
|
||
return $found
|
||
}
|
||
|
||
# Continue the program until it ends.
|
||
#
|
||
# MSSG is the error message that gets printed. If not given, a
|
||
# default is used.
|
||
# COMMAND is the command to invoke. If not given, "continue" is
|
||
# used.
|
||
# ALLOW_EXTRA is a flag indicating whether the test should expect
|
||
# extra output between the "Continuing." line and the program
|
||
# exiting. By default it is zero; if nonzero, any extra output
|
||
# is accepted.
|
||
|
||
proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} {
|
||
global inferior_exited_re use_gdb_stub
|
||
|
||
if {$mssg == ""} {
|
||
set text "continue until exit"
|
||
} else {
|
||
set text "continue until exit at $mssg"
|
||
}
|
||
if {$allow_extra} {
|
||
set extra ".*"
|
||
} else {
|
||
set extra ""
|
||
}
|
||
|
||
# By default, we don't rely on exit() behavior of remote stubs --
|
||
# it's common for exit() to be implemented as a simple infinite
|
||
# loop, or a forced crash/reset. For native targets, by default, we
|
||
# assume process exit is reported as such. If a non-reliable target
|
||
# is used, we set a breakpoint at exit, and continue to that.
|
||
if { [target_info exists exit_is_reliable] } {
|
||
set exit_is_reliable [target_info exit_is_reliable]
|
||
} else {
|
||
set exit_is_reliable [expr ! $use_gdb_stub]
|
||
}
|
||
|
||
if { ! $exit_is_reliable } {
|
||
if {![gdb_breakpoint "exit"]} {
|
||
return 0
|
||
}
|
||
gdb_test $command "Continuing..*Breakpoint .*exit.*" \
|
||
$text
|
||
} else {
|
||
# Continue until we exit. Should not stop again.
|
||
# Don't bother to check the output of the program, that may be
|
||
# extremely tough for some remote systems.
|
||
gdb_test $command \
|
||
"Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\
|
||
$text
|
||
}
|
||
}
|
||
|
||
proc rerun_to_main {} {
|
||
global gdb_prompt use_gdb_stub
|
||
|
||
if $use_gdb_stub {
|
||
gdb_run_cmd
|
||
gdb_expect {
|
||
-re ".*Breakpoint .*main .*$gdb_prompt $"\
|
||
{pass "rerun to main" ; return 0}
|
||
-re "$gdb_prompt $"\
|
||
{fail "rerun to main" ; return 0}
|
||
timeout {fail "(timeout) rerun to main" ; return 0}
|
||
}
|
||
} else {
|
||
send_gdb "run\n"
|
||
gdb_expect {
|
||
-re "The program .* has been started already.*y or n. $" {
|
||
send_gdb "y\n" answer
|
||
exp_continue
|
||
}
|
||
-re "Starting program.*$gdb_prompt $"\
|
||
{pass "rerun to main" ; return 0}
|
||
-re "$gdb_prompt $"\
|
||
{fail "rerun to main" ; return 0}
|
||
timeout {fail "(timeout) rerun to main" ; return 0}
|
||
}
|
||
}
|
||
}
|
||
|
||
# Return true if EXECUTABLE contains a .gdb_index or .debug_names index section.
|
||
|
||
proc exec_has_index_section { executable } {
|
||
set readelf_program [gdb_find_readelf]
|
||
set res [catch {exec $readelf_program -S $executable \
|
||
| grep -E "\.gdb_index|\.debug_names" }]
|
||
if { $res == 0 } {
|
||
return 1
|
||
}
|
||
return 0
|
||
}
|
||
|
||
# Return list with major and minor version of readelf, or an empty list.
|
||
gdb_caching_proc readelf_version {
|
||
set readelf_program [gdb_find_readelf]
|
||
set res [catch {exec $readelf_program --version} output]
|
||
if { $res != 0 } {
|
||
return [list]
|
||
}
|
||
set lines [split $output \n]
|
||
set line [lindex $lines 0]
|
||
set res [regexp {[ \t]+([0-9]+)[.]([0-9]+)[^ \t]*$} \
|
||
$line dummy major minor]
|
||
if { $res != 1 } {
|
||
return [list]
|
||
}
|
||
return [list $major $minor]
|
||
}
|
||
|
||
# Return 1 if readelf prints the PIE flag, 0 if is doesn't, and -1 if unknown.
|
||
proc readelf_prints_pie { } {
|
||
set version [readelf_version]
|
||
if { [llength $version] == 0 } {
|
||
return -1
|
||
}
|
||
set major [lindex $version 0]
|
||
set minor [lindex $version 1]
|
||
# It would be better to construct a PIE executable and test if the PIE
|
||
# flag is printed by readelf, but we cannot reliably construct a PIE
|
||
# executable if the multilib_flags dictate otherwise
|
||
# (--target_board=unix/-no-pie/-fno-PIE).
|
||
return [version_at_least $major $minor 2 26]
|
||
}
|
||
|
||
# Return 1 if EXECUTABLE is a Position Independent Executable, 0 if it is not,
|
||
# and -1 if unknown.
|
||
|
||
proc exec_is_pie { executable } {
|
||
set res [readelf_prints_pie]
|
||
if { $res != 1 } {
|
||
return -1
|
||
}
|
||
set readelf_program [gdb_find_readelf]
|
||
# We're not testing readelf -d | grep "FLAGS_1.*Flags:.*PIE"
|
||
# because the PIE flag is not set by all versions of gold, see PR
|
||
# binutils/26039.
|
||
set res [catch {exec $readelf_program -h $executable} output]
|
||
if { $res != 0 } {
|
||
return -1
|
||
}
|
||
set res [regexp -line {^[ \t]*Type:[ \t]*DYN \((Position-Independent Executable|Shared object) file\)$} \
|
||
$output]
|
||
if { $res == 1 } {
|
||
return 1
|
||
}
|
||
return 0
|
||
}
|
||
|
||
# Return true if a test should be skipped due to lack of floating
|
||
# point support or GDB can't fetch the contents from floating point
|
||
# registers.
|
||
|
||
gdb_caching_proc gdb_skip_float_test {
|
||
if [target_info exists gdb,skip_float_tests] {
|
||
return 1
|
||
}
|
||
|
||
# There is an ARM kernel ptrace bug that hardware VFP registers
|
||
# are not updated after GDB ptrace set VFP registers. The bug
|
||
# was introduced by kernel commit 8130b9d7b9d858aa04ce67805e8951e3cb6e9b2f
|
||
# in 2012 and is fixed in e2dfb4b880146bfd4b6aa8e138c0205407cebbaf
|
||
# in May 2016. In other words, kernels older than 4.6.3, 4.4.14,
|
||
# 4.1.27, 3.18.36, and 3.14.73 have this bug.
|
||
# This kernel bug is detected by check how does GDB change the
|
||
# program result by changing one VFP register.
|
||
if { [istarget "arm*-*-linux*"] } {
|
||
|
||
set compile_flags {debug nowarnings }
|
||
|
||
# Set up, compile, and execute a test program having VFP
|
||
# operations.
|
||
set src [standard_temp_file arm_vfp[pid].c]
|
||
set exe [standard_temp_file arm_vfp[pid].x]
|
||
|
||
gdb_produce_source $src {
|
||
int main() {
|
||
double d = 4.0;
|
||
int ret;
|
||
|
||
asm ("vldr d0, [%0]" : : "r" (&d));
|
||
asm ("vldr d1, [%0]" : : "r" (&d));
|
||
asm (".global break_here\n"
|
||
"break_here:");
|
||
asm ("vcmp.f64 d0, d1\n"
|
||
"vmrs APSR_nzcv, fpscr\n"
|
||
"bne L_value_different\n"
|
||
"movs %0, #0\n"
|
||
"b L_end\n"
|
||
"L_value_different:\n"
|
||
"movs %0, #1\n"
|
||
"L_end:\n" : "=r" (ret) :);
|
||
|
||
/* Return $d0 != $d1. */
|
||
return ret;
|
||
}
|
||
}
|
||
|
||
verbose "compiling testfile $src" 2
|
||
set lines [gdb_compile $src $exe executable $compile_flags]
|
||
file delete $src
|
||
|
||
if ![string match "" $lines] then {
|
||
verbose "testfile compilation failed, returning 1" 2
|
||
return 0
|
||
}
|
||
|
||
# No error message, compilation succeeded so now run it via gdb.
|
||
# Run the test up to 5 times to detect whether ptrace can
|
||
# correctly update VFP registers or not.
|
||
set skip_vfp_test 0
|
||
for {set i 0} {$i < 5} {incr i} {
|
||
global gdb_prompt srcdir subdir
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$exe"
|
||
|
||
runto_main
|
||
gdb_test "break *break_here"
|
||
gdb_continue_to_breakpoint "break_here"
|
||
|
||
# Modify $d0 to a different value, so the exit code should
|
||
# be 1.
|
||
gdb_test "set \$d0 = 5.0"
|
||
|
||
set test "continue to exit"
|
||
gdb_test_multiple "continue" "$test" {
|
||
-re "exited with code 01.*$gdb_prompt $" {
|
||
}
|
||
-re "exited normally.*$gdb_prompt $" {
|
||
# However, the exit code is 0. That means something
|
||
# wrong in setting VFP registers.
|
||
set skip_vfp_test 1
|
||
break
|
||
}
|
||
}
|
||
}
|
||
|
||
gdb_exit
|
||
remote_file build delete $exe
|
||
|
||
return $skip_vfp_test
|
||
}
|
||
return 0
|
||
}
|
||
|
||
# Print a message and return true if a test should be skipped
|
||
# due to lack of stdio support.
|
||
|
||
proc gdb_skip_stdio_test { msg } {
|
||
if [target_info exists gdb,noinferiorio] {
|
||
verbose "Skipping test '$msg': no inferior i/o."
|
||
return 1
|
||
}
|
||
return 0
|
||
}
|
||
|
||
proc gdb_skip_bogus_test { msg } {
|
||
return 0
|
||
}
|
||
|
||
# Return true if a test should be skipped due to lack of XML support
|
||
# in the host GDB.
|
||
# NOTE: This must be called while gdb is *not* running.
|
||
|
||
gdb_caching_proc gdb_skip_xml_test {
|
||
global gdb_spawn_id
|
||
global gdb_prompt
|
||
global srcdir
|
||
|
||
if { [info exists gdb_spawn_id] } {
|
||
error "GDB must not be running in gdb_skip_xml_tests."
|
||
}
|
||
|
||
set xml_file [gdb_remote_download host "${srcdir}/gdb.xml/trivial.xml"]
|
||
|
||
gdb_start
|
||
set xml_missing 0
|
||
gdb_test_multiple "set tdesc filename $xml_file" "" {
|
||
-re ".*XML support was disabled at compile time.*$gdb_prompt $" {
|
||
set xml_missing 1
|
||
}
|
||
-re ".*$gdb_prompt $" { }
|
||
}
|
||
gdb_exit
|
||
return $xml_missing
|
||
}
|
||
|
||
# Return true if argv[0] is available.
|
||
|
||
gdb_caching_proc gdb_has_argv0 {
|
||
set result 0
|
||
|
||
# Compile and execute a test program to check whether argv[0] is available.
|
||
gdb_simple_compile has_argv0 {
|
||
int main (int argc, char **argv) {
|
||
return 0;
|
||
}
|
||
} executable
|
||
|
||
|
||
# Helper proc.
|
||
proc gdb_has_argv0_1 { exe } {
|
||
global srcdir subdir
|
||
global gdb_prompt hex
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$exe"
|
||
|
||
# Set breakpoint on main.
|
||
gdb_test_multiple "break -q main" "break -q main" {
|
||
-re "Breakpoint.*${gdb_prompt} $" {
|
||
}
|
||
-re "${gdb_prompt} $" {
|
||
return 0
|
||
}
|
||
}
|
||
|
||
# Run to main.
|
||
gdb_run_cmd
|
||
gdb_test_multiple "" "run to main" {
|
||
-re "Breakpoint.*${gdb_prompt} $" {
|
||
}
|
||
-re "${gdb_prompt} $" {
|
||
return 0
|
||
}
|
||
}
|
||
|
||
set old_elements "200"
|
||
set test "show print elements"
|
||
gdb_test_multiple $test $test {
|
||
-re "Limit on string chars or array elements to print is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
|
||
set old_elements $expect_out(1,string)
|
||
}
|
||
}
|
||
set old_repeats "200"
|
||
set test "show print repeats"
|
||
gdb_test_multiple $test $test {
|
||
-re "Threshold for repeated print elements is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
|
||
set old_repeats $expect_out(1,string)
|
||
}
|
||
}
|
||
gdb_test_no_output "set print elements unlimited" ""
|
||
gdb_test_no_output "set print repeats unlimited" ""
|
||
|
||
set retval 0
|
||
# Check whether argc is 1.
|
||
gdb_test_multiple "p argc" "p argc" {
|
||
-re " = 1\r\n${gdb_prompt} $" {
|
||
|
||
gdb_test_multiple "p argv\[0\]" "p argv\[0\]" {
|
||
-re " = $hex \".*[file tail $exe]\"\r\n${gdb_prompt} $" {
|
||
set retval 1
|
||
}
|
||
-re "${gdb_prompt} $" {
|
||
}
|
||
}
|
||
}
|
||
-re "${gdb_prompt} $" {
|
||
}
|
||
}
|
||
|
||
gdb_test_no_output "set print elements $old_elements" ""
|
||
gdb_test_no_output "set print repeats $old_repeats" ""
|
||
|
||
return $retval
|
||
}
|
||
|
||
set result [gdb_has_argv0_1 $obj]
|
||
|
||
gdb_exit
|
||
file delete $obj
|
||
|
||
if { !$result
|
||
&& ([istarget *-*-linux*]
|
||
|| [istarget *-*-freebsd*] || [istarget *-*-kfreebsd*]
|
||
|| [istarget *-*-netbsd*] || [istarget *-*-knetbsd*]
|
||
|| [istarget *-*-openbsd*]
|
||
|| [istarget *-*-darwin*]
|
||
|| [istarget *-*-solaris*]
|
||
|| [istarget *-*-aix*]
|
||
|| [istarget *-*-gnu*]
|
||
|| [istarget *-*-cygwin*] || [istarget *-*-mingw32*]
|
||
|| [istarget *-*-*djgpp*] || [istarget *-*-go32*]
|
||
|| [istarget *-wince-pe] || [istarget *-*-mingw32ce*]
|
||
|| [istarget *-*-osf*]
|
||
|| [istarget *-*-dicos*]
|
||
|| [istarget *-*-nto*]
|
||
|| [istarget *-*-*vms*]
|
||
|| [istarget *-*-lynx*178]) } {
|
||
fail "argv\[0\] should be available on this target"
|
||
}
|
||
|
||
return $result
|
||
}
|
||
|
||
# Note: the procedure gdb_gnu_strip_debug will produce an executable called
|
||
# ${binfile}.dbglnk, which is just like the executable ($binfile) but without
|
||
# the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
|
||
# the name of a debuginfo only file. This file will be stored in the same
|
||
# subdirectory.
|
||
|
||
# Functions for separate debug info testing
|
||
|
||
# starting with an executable:
|
||
# foo --> original executable
|
||
|
||
# at the end of the process we have:
|
||
# foo.stripped --> foo w/o debug info
|
||
# foo.debug --> foo's debug info
|
||
# foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
|
||
|
||
# Fetch the build id from the file.
|
||
# Returns "" if there is none.
|
||
|
||
proc get_build_id { filename } {
|
||
if { ([istarget "*-*-mingw*"]
|
||
|| [istarget *-*-cygwin*]) } {
|
||
set objdump_program [gdb_find_objdump]
|
||
set result [catch {set data [exec $objdump_program -p $filename | grep signature | cut "-d " -f4]} output]
|
||
verbose "result is $result"
|
||
verbose "output is $output"
|
||
if {$result == 1} {
|
||
return ""
|
||
}
|
||
return $data
|
||
} else {
|
||
set tmp [standard_output_file "${filename}-tmp"]
|
||
set objcopy_program [gdb_find_objcopy]
|
||
set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $filename $tmp" output]
|
||
verbose "result is $result"
|
||
verbose "output is $output"
|
||
if {$result == 1} {
|
||
return ""
|
||
}
|
||
set fi [open $tmp]
|
||
fconfigure $fi -translation binary
|
||
# Skip the NOTE header.
|
||
read $fi 16
|
||
set data [read $fi]
|
||
close $fi
|
||
file delete $tmp
|
||
if ![string compare $data ""] then {
|
||
return ""
|
||
}
|
||
# Convert it to hex.
|
||
binary scan $data H* data
|
||
return $data
|
||
}
|
||
}
|
||
|
||
# Return the build-id hex string (usually 160 bits as 40 hex characters)
|
||
# converted to the form: .build-id/ab/cdef1234...89.debug
|
||
# Return "" if no build-id found.
|
||
proc build_id_debug_filename_get { filename } {
|
||
set data [get_build_id $filename]
|
||
if { $data == "" } {
|
||
return ""
|
||
}
|
||
regsub {^..} $data {\0/} data
|
||
return ".build-id/${data}.debug"
|
||
}
|
||
|
||
# Create stripped files for DEST, replacing it. If ARGS is passed, it is a
|
||
# list of optional flags. The only currently supported flag is no-main,
|
||
# which removes the symbol entry for main from the separate debug file.
|
||
#
|
||
# Function returns zero on success. Function will return non-zero failure code
|
||
# on some targets not supporting separate debug info (such as i386-msdos).
|
||
|
||
proc gdb_gnu_strip_debug { dest args } {
|
||
|
||
# Use the first separate debug info file location searched by GDB so the
|
||
# run cannot be broken by some stale file searched with higher precedence.
|
||
set debug_file "${dest}.debug"
|
||
|
||
set strip_to_file_program [transform strip]
|
||
set objcopy_program [gdb_find_objcopy]
|
||
|
||
set debug_link [file tail $debug_file]
|
||
set stripped_file "${dest}.stripped"
|
||
|
||
# Get rid of the debug info, and store result in stripped_file
|
||
# something like gdb/testsuite/gdb.base/blah.stripped.
|
||
set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
|
||
verbose "result is $result"
|
||
verbose "output is $output"
|
||
if {$result == 1} {
|
||
return 1
|
||
}
|
||
|
||
# Workaround PR binutils/10802:
|
||
# Preserve the 'x' bit also for PIEs (Position Independent Executables).
|
||
set perm [file attributes ${dest} -permissions]
|
||
file attributes ${stripped_file} -permissions $perm
|
||
|
||
# Get rid of everything but the debug info, and store result in debug_file
|
||
# This will be in the .debug subdirectory, see above.
|
||
set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
|
||
verbose "result is $result"
|
||
verbose "output is $output"
|
||
if {$result == 1} {
|
||
return 1
|
||
}
|
||
|
||
# If no-main is passed, strip the symbol for main from the separate
|
||
# file. This is to simulate the behavior of elfutils's eu-strip, which
|
||
# leaves the symtab in the original file only. There's no way to get
|
||
# objcopy or strip to remove the symbol table without also removing the
|
||
# debugging sections, so this is as close as we can get.
|
||
if { [llength $args] == 1 && [lindex $args 0] == "no-main" } {
|
||
set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
|
||
verbose "result is $result"
|
||
verbose "output is $output"
|
||
if {$result == 1} {
|
||
return 1
|
||
}
|
||
file delete "${debug_file}"
|
||
file rename "${debug_file}-tmp" "${debug_file}"
|
||
}
|
||
|
||
# Link the two previous output files together, adding the .gnu_debuglink
|
||
# section to the stripped_file, containing a pointer to the debug_file,
|
||
# save the new file in dest.
|
||
# This will be the regular executable filename, in the usual location.
|
||
set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
|
||
verbose "result is $result"
|
||
verbose "output is $output"
|
||
if {$result == 1} {
|
||
return 1
|
||
}
|
||
|
||
# Workaround PR binutils/10802:
|
||
# Preserve the 'x' bit also for PIEs (Position Independent Executables).
|
||
set perm [file attributes ${stripped_file} -permissions]
|
||
file attributes ${dest} -permissions $perm
|
||
|
||
return 0
|
||
}
|
||
|
||
# Test the output of GDB_COMMAND matches the pattern obtained
|
||
# by concatenating all elements of EXPECTED_LINES. This makes
|
||
# it possible to split otherwise very long string into pieces.
|
||
# If third argument TESTNAME is not empty, it's used as the name of the
|
||
# test to be printed on pass/fail.
|
||
proc help_test_raw { gdb_command expected_lines {testname {}} } {
|
||
set expected_output [join $expected_lines ""]
|
||
if {$testname != {}} {
|
||
gdb_test "${gdb_command}" "${expected_output}" $testname
|
||
return
|
||
}
|
||
|
||
gdb_test "${gdb_command}" "${expected_output}"
|
||
}
|
||
|
||
# A regexp that matches the end of help CLASS|PREFIX_COMMAND
|
||
set help_list_trailer {
|
||
"Type \"apropos word\" to search for commands related to \"word\"\.[\r\n]+"
|
||
"Type \"apropos -v word\" for full documentation of commands related to \"word\"\.[\r\n]+"
|
||
"Command name abbreviations are allowed if unambiguous\."
|
||
}
|
||
|
||
# Test the output of "help COMMAND_CLASS". EXPECTED_INITIAL_LINES
|
||
# are regular expressions that should match the beginning of output,
|
||
# before the list of commands in that class.
|
||
# LIST_OF_COMMANDS are regular expressions that should match the
|
||
# list of commands in that class. If empty, the command list will be
|
||
# matched automatically. The presence of standard epilogue will be tested
|
||
# automatically.
|
||
# If last argument TESTNAME is not empty, it's used as the name of the
|
||
# test to be printed on pass/fail.
|
||
# Notice that the '[' and ']' characters don't need to be escaped for strings
|
||
# wrapped in {} braces.
|
||
proc test_class_help { command_class expected_initial_lines {list_of_commands {}} {testname {}} } {
|
||
global help_list_trailer
|
||
if {[llength $list_of_commands]>0} {
|
||
set l_list_of_commands {"List of commands:[\r\n]+[\r\n]+"}
|
||
set l_list_of_commands [concat $l_list_of_commands $list_of_commands]
|
||
set l_list_of_commands [concat $l_list_of_commands {"[\r\n]+[\r\n]+"}]
|
||
} else {
|
||
set l_list_of_commands {"List of commands\:.*[\r\n]+"}
|
||
}
|
||
set l_stock_body {
|
||
"Type \"help\" followed by command name for full documentation\.[\r\n]+"
|
||
}
|
||
set l_entire_body [concat $expected_initial_lines $l_list_of_commands \
|
||
$l_stock_body $help_list_trailer]
|
||
|
||
help_test_raw "help ${command_class}" $l_entire_body $testname
|
||
}
|
||
|
||
# Like test_class_help but specialised to test "help user-defined".
|
||
proc test_user_defined_class_help { {list_of_commands {}} {testname {}} } {
|
||
test_class_help "user-defined" {
|
||
"User-defined commands\.[\r\n]+"
|
||
"The commands in this class are those defined by the user\.[\r\n]+"
|
||
"Use the \"define\" command to define a command\.[\r\n]+"
|
||
} $list_of_commands $testname
|
||
}
|
||
|
||
|
||
# COMMAND_LIST should have either one element -- command to test, or
|
||
# two elements -- abbreviated command to test, and full command the first
|
||
# element is abbreviation of.
|
||
# The command must be a prefix command. EXPECTED_INITIAL_LINES
|
||
# are regular expressions that should match the beginning of output,
|
||
# before the list of subcommands. The presence of
|
||
# subcommand list and standard epilogue will be tested automatically.
|
||
proc test_prefix_command_help { command_list expected_initial_lines args } {
|
||
global help_list_trailer
|
||
set command [lindex $command_list 0]
|
||
if {[llength $command_list]>1} {
|
||
set full_command [lindex $command_list 1]
|
||
} else {
|
||
set full_command $command
|
||
}
|
||
# Use 'list' and not just {} because we want variables to
|
||
# be expanded in this list.
|
||
set l_stock_body [list\
|
||
"List of $full_command subcommands\:.*\[\r\n\]+"\
|
||
"Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"]
|
||
set l_entire_body [concat $expected_initial_lines $l_stock_body $help_list_trailer]
|
||
if {[llength $args]>0} {
|
||
help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
|
||
} else {
|
||
help_test_raw "help ${command}" $l_entire_body
|
||
}
|
||
}
|
||
|
||
# Build executable named EXECUTABLE from specifications that allow
|
||
# different options to be passed to different sub-compilations.
|
||
# TESTNAME is the name of the test; this is passed to 'untested' if
|
||
# something fails.
|
||
# OPTIONS is passed to the final link, using gdb_compile. If OPTIONS
|
||
# contains the option "pthreads", then gdb_compile_pthreads is used.
|
||
# ARGS is a flat list of source specifications, of the form:
|
||
# { SOURCE1 OPTIONS1 [ SOURCE2 OPTIONS2 ]... }
|
||
# Each SOURCE is compiled to an object file using its OPTIONS,
|
||
# using gdb_compile.
|
||
# Returns 0 on success, -1 on failure.
|
||
proc build_executable_from_specs {testname executable options args} {
|
||
global subdir
|
||
global srcdir
|
||
|
||
set binfile [standard_output_file $executable]
|
||
|
||
set func gdb_compile
|
||
set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads|openmp)$}]
|
||
if {$func_index != -1} {
|
||
set func "${func}_[lindex $options $func_index]"
|
||
}
|
||
|
||
# gdb_compile_shlib and gdb_compile_shlib_pthreads do not use the 3rd
|
||
# parameter. They also requires $sources while gdb_compile and
|
||
# gdb_compile_pthreads require $objects. Moreover they ignore any options.
|
||
if [string match gdb_compile_shlib* $func] {
|
||
set sources_path {}
|
||
foreach {s local_options} $args {
|
||
if { [regexp "^/" "$s"] } then {
|
||
lappend sources_path "$s"
|
||
} else {
|
||
lappend sources_path "$srcdir/$subdir/$s"
|
||
}
|
||
}
|
||
set ret [$func $sources_path "${binfile}" $options]
|
||
} elseif {[lsearch -exact $options rust] != -1} {
|
||
set sources_path {}
|
||
foreach {s local_options} $args {
|
||
if { [regexp "^/" "$s"] } then {
|
||
lappend sources_path "$s"
|
||
} else {
|
||
lappend sources_path "$srcdir/$subdir/$s"
|
||
}
|
||
}
|
||
set ret [gdb_compile_rust $sources_path "${binfile}" $options]
|
||
} else {
|
||
set objects {}
|
||
set i 0
|
||
foreach {s local_options} $args {
|
||
if { ! [regexp "^/" "$s"] } then {
|
||
set s "$srcdir/$subdir/$s"
|
||
}
|
||
if { [$func "${s}" "${binfile}${i}.o" object $local_options] != "" } {
|
||
untested $testname
|
||
return -1
|
||
}
|
||
lappend objects "${binfile}${i}.o"
|
||
incr i
|
||
}
|
||
set ret [$func $objects "${binfile}" executable $options]
|
||
}
|
||
if { $ret != "" } {
|
||
untested $testname
|
||
return -1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Build executable named EXECUTABLE, from SOURCES. If SOURCES are not
|
||
# provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test
|
||
# to pass to untested, if something is wrong. OPTIONS are passed
|
||
# to gdb_compile directly.
|
||
proc build_executable { testname executable {sources ""} {options {debug}} } {
|
||
if {[llength $sources]==0} {
|
||
set sources ${executable}.c
|
||
}
|
||
|
||
set arglist [list $testname $executable $options]
|
||
foreach source $sources {
|
||
lappend arglist $source $options
|
||
}
|
||
|
||
return [eval build_executable_from_specs $arglist]
|
||
}
|
||
|
||
# Starts fresh GDB binary and loads an optional executable into GDB.
|
||
# Usage: clean_restart [executable]
|
||
# EXECUTABLE is the basename of the binary.
|
||
# Return -1 if starting gdb or loading the executable failed.
|
||
|
||
proc clean_restart { args } {
|
||
global srcdir
|
||
global subdir
|
||
global errcnt
|
||
global warncnt
|
||
|
||
if { [llength $args] > 1 } {
|
||
error "bad number of args: [llength $args]"
|
||
}
|
||
|
||
gdb_exit
|
||
|
||
# This is a clean restart, so reset error and warning count.
|
||
set errcnt 0
|
||
set warncnt 0
|
||
|
||
# We'd like to do:
|
||
# if { [gdb_start] == -1 } {
|
||
# return -1
|
||
# }
|
||
# but gdb_start is a ${tool}_start proc, which doesn't have a defined
|
||
# return value. So instead, we test for errcnt.
|
||
gdb_start
|
||
if { $errcnt > 0 } {
|
||
return -1
|
||
}
|
||
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
|
||
if { [llength $args] >= 1 } {
|
||
set executable [lindex $args 0]
|
||
set binfile [standard_output_file ${executable}]
|
||
return [gdb_load ${binfile}]
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Prepares for testing by calling build_executable_full, then
|
||
# clean_restart.
|
||
# TESTNAME is the name of the test.
|
||
# Each element in ARGS is a list of the form
|
||
# { EXECUTABLE OPTIONS SOURCE_SPEC... }
|
||
# These are passed to build_executable_from_specs, which see.
|
||
# The last EXECUTABLE is passed to clean_restart.
|
||
# Returns 0 on success, non-zero on failure.
|
||
proc prepare_for_testing_full {testname args} {
|
||
foreach spec $args {
|
||
if {[eval build_executable_from_specs [list $testname] $spec] == -1} {
|
||
return -1
|
||
}
|
||
set executable [lindex $spec 0]
|
||
}
|
||
clean_restart $executable
|
||
return 0
|
||
}
|
||
|
||
# Prepares for testing, by calling build_executable, and then clean_restart.
|
||
# Please refer to build_executable for parameter description.
|
||
proc prepare_for_testing { testname executable {sources ""} {options {debug}}} {
|
||
|
||
if {[build_executable $testname $executable $sources $options] == -1} {
|
||
return -1
|
||
}
|
||
clean_restart $executable
|
||
|
||
return 0
|
||
}
|
||
|
||
# Retrieve the value of EXP in the inferior, represented in format
|
||
# specified in FMT (using "printFMT"). DEFAULT is used as fallback if
|
||
# print fails. TEST is the test message to use. It can be omitted,
|
||
# in which case a test message is built from EXP.
|
||
|
||
proc get_valueof { fmt exp default {test ""} } {
|
||
global gdb_prompt
|
||
|
||
if {$test == "" } {
|
||
set test "get valueof \"${exp}\""
|
||
}
|
||
|
||
set val ${default}
|
||
gdb_test_multiple "print${fmt} ${exp}" "$test" {
|
||
-re "\\$\[0-9\]* = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
|
||
set val $expect_out(1,string)
|
||
pass "$test"
|
||
}
|
||
timeout {
|
||
fail "$test (timeout)"
|
||
}
|
||
}
|
||
return ${val}
|
||
}
|
||
|
||
# Retrieve the value of local var EXP in the inferior. DEFAULT is used as
|
||
# fallback if print fails. TEST is the test message to use. It can be
|
||
# omitted, in which case a test message is built from EXP.
|
||
|
||
proc get_local_valueof { exp default {test ""} } {
|
||
global gdb_prompt
|
||
|
||
if {$test == "" } {
|
||
set test "get local valueof \"${exp}\""
|
||
}
|
||
|
||
set val ${default}
|
||
gdb_test_multiple "info locals ${exp}" "$test" {
|
||
-re "$exp = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
|
||
set val $expect_out(1,string)
|
||
pass "$test"
|
||
}
|
||
timeout {
|
||
fail "$test (timeout)"
|
||
}
|
||
}
|
||
return ${val}
|
||
}
|
||
|
||
# Retrieve the value of EXP in the inferior, as a signed decimal value
|
||
# (using "print /d"). DEFAULT is used as fallback if print fails.
|
||
# TEST is the test message to use. It can be omitted, in which case
|
||
# a test message is built from EXP.
|
||
|
||
proc get_integer_valueof { exp default {test ""} } {
|
||
global gdb_prompt
|
||
|
||
if {$test == ""} {
|
||
set test "get integer valueof \"${exp}\""
|
||
}
|
||
|
||
set val ${default}
|
||
gdb_test_multiple "print /d ${exp}" "$test" {
|
||
-re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
|
||
set val $expect_out(1,string)
|
||
pass "$test"
|
||
}
|
||
timeout {
|
||
fail "$test (timeout)"
|
||
}
|
||
}
|
||
return ${val}
|
||
}
|
||
|
||
# Retrieve the value of EXP in the inferior, as an hexadecimal value
|
||
# (using "print /x"). DEFAULT is used as fallback if print fails.
|
||
# TEST is the test message to use. It can be omitted, in which case
|
||
# a test message is built from EXP.
|
||
|
||
proc get_hexadecimal_valueof { exp default {test ""} } {
|
||
global gdb_prompt
|
||
|
||
if {$test == ""} {
|
||
set test "get hexadecimal valueof \"${exp}\""
|
||
}
|
||
|
||
set val ${default}
|
||
gdb_test_multiple "print /x ${exp}" $test {
|
||
-re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
|
||
set val $expect_out(1,string)
|
||
pass "$test"
|
||
}
|
||
}
|
||
return ${val}
|
||
}
|
||
|
||
# Retrieve the size of TYPE in the inferior, as a decimal value. DEFAULT
|
||
# is used as fallback if print fails. TEST is the test message to use.
|
||
# It can be omitted, in which case a test message is 'sizeof (TYPE)'.
|
||
|
||
proc get_sizeof { type default {test ""} } {
|
||
return [get_integer_valueof "sizeof (${type})" $default $test]
|
||
}
|
||
|
||
proc get_target_charset { } {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "show target-charset" "" {
|
||
-re "The target character set is \"auto; currently (\[^\"\]*)\".*$gdb_prompt $" {
|
||
return $expect_out(1,string)
|
||
}
|
||
-re "The target character set is \"(\[^\"\]*)\".*$gdb_prompt $" {
|
||
return $expect_out(1,string)
|
||
}
|
||
}
|
||
|
||
# Pick a reasonable default.
|
||
warning "Unable to read target-charset."
|
||
return "UTF-8"
|
||
}
|
||
|
||
# Get the address of VAR.
|
||
|
||
proc get_var_address { var } {
|
||
global gdb_prompt hex
|
||
|
||
# Match output like:
|
||
# $1 = (int *) 0x0
|
||
# $5 = (int (*)()) 0
|
||
# $6 = (int (*)()) 0x24 <function_bar>
|
||
|
||
gdb_test_multiple "print &${var}" "get address of ${var}" {
|
||
-re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $"
|
||
{
|
||
pass "get address of ${var}"
|
||
if { $expect_out(1,string) == "0" } {
|
||
return "0x0"
|
||
} else {
|
||
return $expect_out(1,string)
|
||
}
|
||
}
|
||
}
|
||
return ""
|
||
}
|
||
|
||
# Return the frame number for the currently selected frame
|
||
proc get_current_frame_number {{test_name ""}} {
|
||
global gdb_prompt
|
||
|
||
if { $test_name == "" } {
|
||
set test_name "get current frame number"
|
||
}
|
||
set frame_num -1
|
||
gdb_test_multiple "frame" $test_name {
|
||
-re "#(\[0-9\]+) .*$gdb_prompt $" {
|
||
set frame_num $expect_out(1,string)
|
||
}
|
||
}
|
||
return $frame_num
|
||
}
|
||
|
||
# Get the current value for remotetimeout and return it.
|
||
proc get_remotetimeout { } {
|
||
global gdb_prompt
|
||
global decimal
|
||
|
||
gdb_test_multiple "show remotetimeout" "" {
|
||
-re "Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
|
||
return $expect_out(1,string)
|
||
}
|
||
}
|
||
|
||
# Pick the default that gdb uses
|
||
warning "Unable to read remotetimeout"
|
||
return 300
|
||
}
|
||
|
||
# Set the remotetimeout to the specified timeout. Nothing is returned.
|
||
proc set_remotetimeout { timeout } {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "set remotetimeout $timeout" "" {
|
||
-re "$gdb_prompt $" {
|
||
verbose "Set remotetimeout to $timeout\n"
|
||
}
|
||
}
|
||
}
|
||
|
||
# Get the target's current endianness and return it.
|
||
proc get_endianness { } {
|
||
global gdb_prompt
|
||
|
||
gdb_test_multiple "show endian" "determine endianness" {
|
||
-re ".* (little|big) endian.*\r\n$gdb_prompt $" {
|
||
# Pass silently.
|
||
return $expect_out(1,string)
|
||
}
|
||
}
|
||
return "little"
|
||
}
|
||
|
||
# Get the target's default endianness and return it.
|
||
gdb_caching_proc target_endianness {
|
||
global gdb_prompt
|
||
|
||
set me "target_endianness"
|
||
|
||
set src { int main() { return 0; } }
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 0
|
||
}
|
||
|
||
clean_restart $obj
|
||
if ![runto_main] {
|
||
return 0
|
||
}
|
||
set res [get_endianness]
|
||
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
return $res
|
||
}
|
||
|
||
# ROOT and FULL are file names. Returns the relative path from ROOT
|
||
# to FULL. Note that FULL must be in a subdirectory of ROOT.
|
||
# For example, given ROOT = /usr/bin and FULL = /usr/bin/ls, this
|
||
# will return "ls".
|
||
|
||
proc relative_filename {root full} {
|
||
set root_split [file split $root]
|
||
set full_split [file split $full]
|
||
|
||
set len [llength $root_split]
|
||
|
||
if {[eval file join $root_split]
|
||
!= [eval file join [lrange $full_split 0 [expr {$len - 1}]]]} {
|
||
error "$full not a subdir of $root"
|
||
}
|
||
|
||
return [eval file join [lrange $full_split $len end]]
|
||
}
|
||
|
||
# If GDB_PARALLEL exists, then set up the parallel-mode directories.
|
||
if {[info exists GDB_PARALLEL]} {
|
||
if {[is_remote host]} {
|
||
unset GDB_PARALLEL
|
||
} else {
|
||
file mkdir \
|
||
[make_gdb_parallel_path outputs] \
|
||
[make_gdb_parallel_path temp] \
|
||
[make_gdb_parallel_path cache]
|
||
}
|
||
}
|
||
|
||
# Set the inferior's cwd to the output directory, in order to have it
|
||
# dump core there. This must be called before the inferior is
|
||
# started.
|
||
|
||
proc set_inferior_cwd_to_output_dir {} {
|
||
# Note this sets the inferior's cwd ("set cwd"), not GDB's ("cd").
|
||
# If GDB crashes, we want its core dump in gdb/testsuite/, not in
|
||
# the testcase's dir, so we can detect the unexpected core at the
|
||
# end of the test run.
|
||
if {![is_remote host]} {
|
||
set output_dir [standard_output_file ""]
|
||
gdb_test_no_output "set cwd $output_dir" \
|
||
"set inferior cwd to test directory"
|
||
}
|
||
}
|
||
|
||
# Get the inferior's PID.
|
||
|
||
proc get_inferior_pid {} {
|
||
set pid -1
|
||
gdb_test_multiple "inferior" "get inferior pid" {
|
||
-re "process (\[0-9\]*).*$::gdb_prompt $" {
|
||
set pid $expect_out(1,string)
|
||
pass $gdb_test_name
|
||
}
|
||
}
|
||
return $pid
|
||
}
|
||
|
||
# Find the kernel-produced core file dumped for the current testfile
|
||
# program. PID was the inferior's pid, saved before the inferior
|
||
# exited with a signal, or -1 if not known. If not on a remote host,
|
||
# this assumes the core was generated in the output directory.
|
||
# Returns the name of the core dump, or empty string if not found.
|
||
|
||
proc find_core_file {pid} {
|
||
# For non-remote hosts, since cores are assumed to be in the
|
||
# output dir, which we control, we use a laxer "core.*" glob. For
|
||
# remote hosts, as we don't know whether the dir is being reused
|
||
# for parallel runs, we use stricter names with no globs. It is
|
||
# not clear whether this is really important, but it preserves
|
||
# status quo ante.
|
||
set files {}
|
||
if {![is_remote host]} {
|
||
lappend files core.*
|
||
} elseif {$pid != -1} {
|
||
lappend files core.$pid
|
||
}
|
||
lappend files [list ${::testfile}.core core]
|
||
|
||
foreach file $files {
|
||
if {![is_remote host]} {
|
||
set names [glob -nocomplain [standard_output_file $file]]
|
||
if {[llength $names] == 1} {
|
||
return [lindex $names 0]
|
||
}
|
||
} else {
|
||
if {[remote_file host exists $file]} {
|
||
return $file
|
||
}
|
||
}
|
||
}
|
||
return ""
|
||
}
|
||
|
||
# Check for production of a core file and remove it. PID is the
|
||
# inferior's pid or -1 if not known. TEST is the test's message.
|
||
|
||
proc remove_core {pid {test ""}} {
|
||
if {$test == ""} {
|
||
set test "cleanup core file"
|
||
}
|
||
|
||
set file [find_core_file $pid]
|
||
if {$file != ""} {
|
||
remote_file host delete $file
|
||
pass "$test (removed)"
|
||
} else {
|
||
pass "$test (not found)"
|
||
}
|
||
}
|
||
|
||
proc core_find {binfile {deletefiles {}} {arg ""}} {
|
||
global objdir subdir
|
||
|
||
set destcore "$binfile.core"
|
||
file delete $destcore
|
||
|
||
# Create a core file named "$destcore" rather than just "core", to
|
||
# avoid problems with sys admin types that like to regularly prune all
|
||
# files named "core" from the system.
|
||
#
|
||
# Arbitrarily try setting the core size limit to "unlimited" since
|
||
# this does not hurt on systems where the command does not work and
|
||
# allows us to generate a core on systems where it does.
|
||
#
|
||
# Some systems append "core" to the name of the program; others append
|
||
# the name of the program to "core"; still others (like Linux, as of
|
||
# May 2003) create cores named "core.PID". In the latter case, we
|
||
# could have many core files lying around, and it may be difficult to
|
||
# tell which one is ours, so let's run the program in a subdirectory.
|
||
set found 0
|
||
set coredir [standard_output_file coredir.[getpid]]
|
||
file mkdir $coredir
|
||
catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\""
|
||
# remote_exec host "${binfile}"
|
||
foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
|
||
if [remote_file build exists $i] {
|
||
remote_exec build "mv $i $destcore"
|
||
set found 1
|
||
}
|
||
}
|
||
# Check for "core.PID", "core.EXEC.PID.HOST.TIME", etc. It's fine
|
||
# to use a glob here as we're looking inside a directory we
|
||
# created. Also, this procedure only works on non-remote hosts.
|
||
if { $found == 0 } {
|
||
set names [glob -nocomplain -directory $coredir core.*]
|
||
if {[llength $names] == 1} {
|
||
set corefile [file join $coredir [lindex $names 0]]
|
||
remote_exec build "mv $corefile $destcore"
|
||
set found 1
|
||
}
|
||
}
|
||
if { $found == 0 } {
|
||
# The braindamaged HPUX shell quits after the ulimit -c above
|
||
# without executing ${binfile}. So we try again without the
|
||
# ulimit here if we didn't find a core file above.
|
||
# Oh, I should mention that any "braindamaged" non-Unix system has
|
||
# the same problem. I like the cd bit too, it's really neat'n stuff.
|
||
catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
|
||
foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
|
||
if [remote_file build exists $i] {
|
||
remote_exec build "mv $i $destcore"
|
||
set found 1
|
||
}
|
||
}
|
||
}
|
||
|
||
# Try to clean up after ourselves.
|
||
foreach deletefile $deletefiles {
|
||
remote_file build delete [file join $coredir $deletefile]
|
||
}
|
||
remote_exec build "rmdir $coredir"
|
||
|
||
if { $found == 0 } {
|
||
warning "can't generate a core file - core tests suppressed - check ulimit -c"
|
||
return ""
|
||
}
|
||
return $destcore
|
||
}
|
||
|
||
# gdb_target_symbol_prefix compiles a test program and then examines
|
||
# the output from objdump to determine the prefix (such as underscore)
|
||
# for linker symbol prefixes.
|
||
|
||
gdb_caching_proc gdb_target_symbol_prefix {
|
||
# Compile a simple test program...
|
||
set src { int main() { return 0; } }
|
||
if {![gdb_simple_compile target_symbol_prefix $src executable]} {
|
||
return 0
|
||
}
|
||
|
||
set prefix ""
|
||
|
||
set objdump_program [gdb_find_objdump]
|
||
set result [catch "exec $objdump_program --syms $obj" output]
|
||
|
||
if { $result == 0 \
|
||
&& ![regexp -lineanchor \
|
||
{ ([^ a-zA-Z0-9]*)main$} $output dummy prefix] } {
|
||
verbose "gdb_target_symbol_prefix: Could not find main in objdump output; returning null prefix" 2
|
||
}
|
||
|
||
file delete $obj
|
||
|
||
return $prefix
|
||
}
|
||
|
||
# Return 1 if target supports scheduler locking, otherwise return 0.
|
||
|
||
gdb_caching_proc target_supports_scheduler_locking {
|
||
global gdb_prompt
|
||
|
||
set me "gdb_target_supports_scheduler_locking"
|
||
|
||
set src { int main() { return 0; } }
|
||
if {![gdb_simple_compile $me $src executable]} {
|
||
return 0
|
||
}
|
||
|
||
clean_restart $obj
|
||
if ![runto_main] {
|
||
return 0
|
||
}
|
||
|
||
set supports_schedule_locking -1
|
||
set current_schedule_locking_mode ""
|
||
|
||
set test "reading current scheduler-locking mode"
|
||
gdb_test_multiple "show scheduler-locking" $test {
|
||
-re "Mode for locking scheduler during execution is \"(\[\^\"\]*)\".*$gdb_prompt" {
|
||
set current_schedule_locking_mode $expect_out(1,string)
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
set supports_schedule_locking 0
|
||
}
|
||
timeout {
|
||
set supports_schedule_locking 0
|
||
}
|
||
}
|
||
|
||
if { $supports_schedule_locking == -1 } {
|
||
set test "checking for scheduler-locking support"
|
||
gdb_test_multiple "set scheduler-locking $current_schedule_locking_mode" $test {
|
||
-re "Target '\[^'\]+' cannot support this command\..*$gdb_prompt $" {
|
||
set supports_schedule_locking 0
|
||
}
|
||
-re "$gdb_prompt $" {
|
||
set supports_schedule_locking 1
|
||
}
|
||
timeout {
|
||
set supports_schedule_locking 0
|
||
}
|
||
}
|
||
}
|
||
|
||
if { $supports_schedule_locking == -1 } {
|
||
set supports_schedule_locking 0
|
||
}
|
||
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
verbose "$me: returning $supports_schedule_locking" 2
|
||
return $supports_schedule_locking
|
||
}
|
||
|
||
# Return 1 if compiler supports use of nested functions. Otherwise,
|
||
# return 0.
|
||
|
||
gdb_caching_proc support_nested_function_tests {
|
||
# Compile a test program containing a nested function
|
||
return [gdb_can_simple_compile nested_func {
|
||
int main () {
|
||
int foo () {
|
||
return 0;
|
||
}
|
||
return foo ();
|
||
}
|
||
} executable]
|
||
}
|
||
|
||
# gdb_target_symbol returns the provided symbol with the correct prefix
|
||
# prepended. (See gdb_target_symbol_prefix, above.)
|
||
|
||
proc gdb_target_symbol { symbol } {
|
||
set prefix [gdb_target_symbol_prefix]
|
||
return "${prefix}${symbol}"
|
||
}
|
||
|
||
# gdb_target_symbol_prefix_flags_asm returns a string that can be
|
||
# added to gdb_compile options to define the C-preprocessor macro
|
||
# SYMBOL_PREFIX with a value that can be prepended to symbols
|
||
# for targets which require a prefix, such as underscore.
|
||
#
|
||
# This version (_asm) defines the prefix without double quotes
|
||
# surrounding the prefix. It is used to define the macro
|
||
# SYMBOL_PREFIX for assembly language files. Another version, below,
|
||
# is used for symbols in inline assembler in C/C++ files.
|
||
#
|
||
# The lack of quotes in this version (_asm) makes it possible to
|
||
# define supporting macros in the .S file. (The version which
|
||
# uses quotes for the prefix won't work for such files since it's
|
||
# impossible to define a quote-stripping macro in C.)
|
||
#
|
||
# It's possible to use this version (_asm) for C/C++ source files too,
|
||
# but a string is usually required in such files; providing a version
|
||
# (no _asm) which encloses the prefix with double quotes makes it
|
||
# somewhat easier to define the supporting macros in the test case.
|
||
|
||
proc gdb_target_symbol_prefix_flags_asm {} {
|
||
set prefix [gdb_target_symbol_prefix]
|
||
if {$prefix ne ""} {
|
||
return "additional_flags=-DSYMBOL_PREFIX=$prefix"
|
||
} else {
|
||
return "";
|
||
}
|
||
}
|
||
|
||
# gdb_target_symbol_prefix_flags returns the same string as
|
||
# gdb_target_symbol_prefix_flags_asm, above, but with the prefix
|
||
# enclosed in double quotes if there is a prefix.
|
||
#
|
||
# See the comment for gdb_target_symbol_prefix_flags_asm for an
|
||
# extended discussion.
|
||
|
||
proc gdb_target_symbol_prefix_flags {} {
|
||
set prefix [gdb_target_symbol_prefix]
|
||
if {$prefix ne ""} {
|
||
return "additional_flags=-DSYMBOL_PREFIX=\"$prefix\""
|
||
} else {
|
||
return "";
|
||
}
|
||
}
|
||
|
||
# A wrapper for 'remote_exec host' that passes or fails a test.
|
||
# Returns 0 if all went well, nonzero on failure.
|
||
# TEST is the name of the test, other arguments are as for remote_exec.
|
||
|
||
proc run_on_host { test program args } {
|
||
verbose -log "run_on_host: $program $args"
|
||
# remote_exec doesn't work properly if the output is set but the
|
||
# input is the empty string -- so replace an empty input with
|
||
# /dev/null.
|
||
if {[llength $args] > 1 && [lindex $args 1] == ""} {
|
||
set args [lreplace $args 1 1 "/dev/null"]
|
||
}
|
||
set result [eval remote_exec host [list $program] $args]
|
||
verbose "result is $result"
|
||
set status [lindex $result 0]
|
||
set output [lindex $result 1]
|
||
if {$status == 0} {
|
||
pass $test
|
||
return 0
|
||
} else {
|
||
verbose -log "run_on_host failed: $output"
|
||
if { $output == "spawn failed" } {
|
||
unsupported $test
|
||
} else {
|
||
fail $test
|
||
}
|
||
return -1
|
||
}
|
||
}
|
||
|
||
# Return non-zero if "board_info debug_flags" mentions Fission.
|
||
# http://gcc.gnu.org/wiki/DebugFission
|
||
# Fission doesn't support everything yet.
|
||
# This supports working around bug 15954.
|
||
|
||
proc using_fission { } {
|
||
set debug_flags [board_info [target_info name] debug_flags]
|
||
return [regexp -- "-gsplit-dwarf" $debug_flags]
|
||
}
|
||
|
||
# Search LISTNAME in uplevel LEVEL caller and set variables according to the
|
||
# list of valid options with prefix PREFIX described by ARGSET.
|
||
#
|
||
# The first member of each one- or two-element list in ARGSET defines the
|
||
# name of a variable that will be added to the caller's scope.
|
||
#
|
||
# If only one element is given to describe an option, it the value is
|
||
# 0 if the option is not present in (the caller's) ARGS or 1 if
|
||
# it is.
|
||
#
|
||
# If two elements are given, the second element is the default value of
|
||
# the variable. This is then overwritten if the option exists in ARGS.
|
||
# If EVAL, then subst is called on the value, which allows variables
|
||
# to be used.
|
||
#
|
||
# Any parse_args elements in (the caller's) ARGS will be removed, leaving
|
||
# any optional components.
|
||
#
|
||
# Example:
|
||
# proc myproc {foo args} {
|
||
# parse_list args 1 {{bar} {baz "abc"} {qux}} "-" false
|
||
# # ...
|
||
# }
|
||
# myproc ABC -bar -baz DEF peanut butter
|
||
# will define the following variables in myproc:
|
||
# foo (=ABC), bar (=1), baz (=DEF), and qux (=0)
|
||
# args will be the list {peanut butter}
|
||
|
||
proc parse_list { level listname argset prefix eval } {
|
||
upvar $level $listname args
|
||
|
||
foreach argument $argset {
|
||
if {[llength $argument] == 1} {
|
||
# Normalize argument, strip leading/trailing whitespace.
|
||
# Allows us to treat {foo} and { foo } the same.
|
||
set argument [string trim $argument]
|
||
|
||
# No default specified, so we assume that we should set
|
||
# the value to 1 if the arg is present and 0 if it's not.
|
||
# It is assumed that no value is given with the argument.
|
||
set pattern "$prefix$argument"
|
||
set result [lsearch -exact $args $pattern]
|
||
|
||
if {$result != -1} then {
|
||
set value 1
|
||
set args [lreplace $args $result $result]
|
||
} else {
|
||
set value 0
|
||
}
|
||
uplevel $level [list set $argument $value]
|
||
} elseif {[llength $argument] == 2} {
|
||
# There are two items in the argument. The second is a
|
||
# default value to use if the item is not present.
|
||
# Otherwise, the variable is set to whatever is provided
|
||
# after the item in the args.
|
||
set arg [lindex $argument 0]
|
||
set pattern "$prefix[lindex $arg 0]"
|
||
set result [lsearch -exact $args $pattern]
|
||
|
||
if {$result != -1} then {
|
||
set value [lindex $args [expr $result+1]]
|
||
if { $eval } {
|
||
set value [uplevel [expr $level + 1] [list subst $value]]
|
||
}
|
||
set args [lreplace $args $result [expr $result+1]]
|
||
} else {
|
||
set value [lindex $argument 1]
|
||
if { $eval } {
|
||
set value [uplevel $level [list subst $value]]
|
||
}
|
||
}
|
||
uplevel $level [list set $arg $value]
|
||
} else {
|
||
error "Badly formatted argument \"$argument\" in argument set"
|
||
}
|
||
}
|
||
}
|
||
|
||
# Search the caller's args variable and set variables according to the list of
|
||
# valid options described by ARGSET.
|
||
|
||
proc parse_args { argset } {
|
||
parse_list 2 args $argset "-" false
|
||
|
||
# The remaining args should be checked to see that they match the
|
||
# number of items expected to be passed into the procedure...
|
||
}
|
||
|
||
# Process the caller's options variable and set variables according
|
||
# to the list of valid options described by OPTIONSET.
|
||
|
||
proc parse_options { optionset } {
|
||
parse_list 2 options $optionset "" true
|
||
|
||
# Require no remaining options.
|
||
upvar 1 options options
|
||
if { [llength $options] != 0 } {
|
||
error "Options left unparsed: $options"
|
||
}
|
||
}
|
||
|
||
# Capture the output of COMMAND in a string ignoring PREFIX (a regexp);
|
||
# return that string.
|
||
|
||
proc capture_command_output { command prefix } {
|
||
global gdb_prompt
|
||
global expect_out
|
||
|
||
set output_string ""
|
||
gdb_test_multiple "$command" "capture_command_output for $command" {
|
||
-re "[string_to_regexp ${command}]\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
|
||
set output_string $expect_out(1,string)
|
||
}
|
||
}
|
||
return $output_string
|
||
}
|
||
|
||
# A convenience function that joins all the arguments together, with a
|
||
# regexp that matches exactly one end of line in between each argument.
|
||
# This function is ideal to write the expected output of a GDB command
|
||
# that generates more than a couple of lines, as this allows us to write
|
||
# each line as a separate string, which is easier to read by a human
|
||
# being.
|
||
|
||
proc multi_line { args } {
|
||
if { [llength $args] == 1 } {
|
||
set hint "forgot {*} before list argument?"
|
||
error "multi_line called with one argument ($hint)"
|
||
}
|
||
return [join $args "\r\n"]
|
||
}
|
||
|
||
# Similar to the above, but while multi_line is meant to be used to
|
||
# match GDB output, this one is meant to be used to build strings to
|
||
# send as GDB input.
|
||
|
||
proc multi_line_input { args } {
|
||
return [join $args "\n"]
|
||
}
|
||
|
||
# Return the version of the DejaGnu framework.
|
||
#
|
||
# The return value is a list containing the major, minor and patch version
|
||
# numbers. If the version does not contain a minor or patch number, they will
|
||
# be set to 0. For example:
|
||
#
|
||
# 1.6 -> {1 6 0}
|
||
# 1.6.1 -> {1 6 1}
|
||
# 2 -> {2 0 0}
|
||
|
||
proc dejagnu_version { } {
|
||
# The frame_version variable is defined by DejaGnu, in runtest.exp.
|
||
global frame_version
|
||
|
||
verbose -log "DejaGnu version: $frame_version"
|
||
verbose -log "Expect version: [exp_version]"
|
||
verbose -log "Tcl version: [info tclversion]"
|
||
|
||
set dg_ver [split $frame_version .]
|
||
|
||
while { [llength $dg_ver] < 3 } {
|
||
lappend dg_ver 0
|
||
}
|
||
|
||
return $dg_ver
|
||
}
|
||
|
||
# Define user-defined command COMMAND using the COMMAND_LIST as the
|
||
# command's definition. The terminating "end" is added automatically.
|
||
|
||
proc gdb_define_cmd {command command_list} {
|
||
global gdb_prompt
|
||
|
||
set input [multi_line_input {*}$command_list "end"]
|
||
set test "define $command"
|
||
|
||
gdb_test_multiple "define $command" $test {
|
||
-re "End with" {
|
||
gdb_test_multiple $input $test {
|
||
-re "\r\n$gdb_prompt " {
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# Override the 'cd' builtin with a version that ensures that the
|
||
# log file keeps pointing at the same file. We need this because
|
||
# unfortunately the path to the log file is recorded using an
|
||
# relative path name, and, we sometimes need to close/reopen the log
|
||
# after changing the current directory. See get_compiler_info.
|
||
|
||
rename cd builtin_cd
|
||
|
||
proc cd { dir } {
|
||
|
||
# Get the existing log file flags.
|
||
set log_file_info [log_file -info]
|
||
|
||
# Split the flags into args and file name.
|
||
set log_file_flags ""
|
||
set log_file_file ""
|
||
foreach arg [ split "$log_file_info" " "] {
|
||
if [string match "-*" $arg] {
|
||
lappend log_file_flags $arg
|
||
} else {
|
||
lappend log_file_file $arg
|
||
}
|
||
}
|
||
|
||
# If there was an existing file, ensure it is an absolute path, and then
|
||
# reset logging.
|
||
if { $log_file_file != "" } {
|
||
set log_file_file [file normalize $log_file_file]
|
||
log_file
|
||
log_file $log_file_flags "$log_file_file"
|
||
}
|
||
|
||
# Call the builtin version of cd.
|
||
builtin_cd $dir
|
||
}
|
||
|
||
# Return a list of all languages supported by GDB, suitable for use in
|
||
# 'set language NAME'. This doesn't include either the 'local' or
|
||
# 'auto' keywords.
|
||
proc gdb_supported_languages {} {
|
||
return [list c objective-c c++ d go fortran modula-2 asm pascal \
|
||
opencl rust minimal ada]
|
||
}
|
||
|
||
# Check if debugging is enabled for gdb.
|
||
|
||
proc gdb_debug_enabled { } {
|
||
global gdbdebug
|
||
|
||
# If not already read, get the debug setting from environment or board setting.
|
||
if {![info exists gdbdebug]} {
|
||
global env
|
||
if [info exists env(GDB_DEBUG)] {
|
||
set gdbdebug $env(GDB_DEBUG)
|
||
} elseif [target_info exists gdb,debug] {
|
||
set gdbdebug [target_info gdb,debug]
|
||
} else {
|
||
return 0
|
||
}
|
||
}
|
||
|
||
# Ensure it not empty.
|
||
return [expr { $gdbdebug != "" }]
|
||
}
|
||
|
||
# Turn on debugging if enabled, or reset if already on.
|
||
|
||
proc gdb_debug_init { } {
|
||
|
||
global gdb_prompt
|
||
|
||
if ![gdb_debug_enabled] {
|
||
return;
|
||
}
|
||
|
||
# First ensure logging is off.
|
||
send_gdb "set logging enabled off\n"
|
||
|
||
set debugfile [standard_output_file gdb.debug]
|
||
send_gdb "set logging file $debugfile\n"
|
||
|
||
send_gdb "set logging debugredirect\n"
|
||
|
||
global gdbdebug
|
||
foreach entry [split $gdbdebug ,] {
|
||
send_gdb "set debug $entry 1\n"
|
||
}
|
||
|
||
# Now that everything is set, enable logging.
|
||
send_gdb "set logging enabled on\n"
|
||
gdb_expect 10 {
|
||
-re "Copying output to $debugfile.*Redirecting debug output to $debugfile.*$gdb_prompt $" {}
|
||
timeout { warning "Couldn't set logging file" }
|
||
}
|
||
}
|
||
|
||
# Check if debugging is enabled for gdbserver.
|
||
|
||
proc gdbserver_debug_enabled { } {
|
||
# Always disabled for GDB only setups.
|
||
return 0
|
||
}
|
||
|
||
# Open the file for logging gdb input
|
||
|
||
proc gdb_stdin_log_init { } {
|
||
gdb_persistent_global in_file
|
||
|
||
if {[info exists in_file]} {
|
||
# Close existing file.
|
||
catch "close $in_file"
|
||
}
|
||
|
||
set logfile [standard_output_file_with_gdb_instance gdb.in]
|
||
set in_file [open $logfile w]
|
||
}
|
||
|
||
# Write to the file for logging gdb input.
|
||
# TYPE can be one of the following:
|
||
# "standard" : Default. Standard message written to the log
|
||
# "answer" : Answer to a question (eg "Y"). Not written the log.
|
||
# "optional" : Optional message. Not written to the log.
|
||
|
||
proc gdb_stdin_log_write { message {type standard} } {
|
||
|
||
global in_file
|
||
if {![info exists in_file]} {
|
||
return
|
||
}
|
||
|
||
# Check message types.
|
||
switch -regexp -- $type {
|
||
"answer" {
|
||
return
|
||
}
|
||
"optional" {
|
||
return
|
||
}
|
||
}
|
||
|
||
# Write to the log and make sure the output is there, even in case
|
||
# of crash.
|
||
puts -nonewline $in_file "$message"
|
||
flush $in_file
|
||
}
|
||
|
||
# Write the command line used to invocate gdb to the cmd file.
|
||
|
||
proc gdb_write_cmd_file { cmdline } {
|
||
set logfile [standard_output_file_with_gdb_instance gdb.cmd]
|
||
set cmd_file [open $logfile w]
|
||
puts $cmd_file $cmdline
|
||
catch "close $cmd_file"
|
||
}
|
||
|
||
# Compare contents of FILE to string STR. Pass with MSG if equal, otherwise
|
||
# fail with MSG.
|
||
|
||
proc cmp_file_string { file str msg } {
|
||
if { ![file exists $file]} {
|
||
fail "$msg"
|
||
return
|
||
}
|
||
|
||
set caught_error [catch {
|
||
set fp [open "$file" r]
|
||
set file_contents [read $fp]
|
||
close $fp
|
||
} error_message]
|
||
if { $caught_error } then {
|
||
error "$error_message"
|
||
fail "$msg"
|
||
return
|
||
}
|
||
|
||
if { $file_contents == $str } {
|
||
pass "$msg"
|
||
} else {
|
||
fail "$msg"
|
||
}
|
||
}
|
||
|
||
# Does the compiler support CTF debug output using '-gctf' compiler
|
||
# flag? If not then we should skip these tests. We should also
|
||
# skip them if libctf was explicitly disabled.
|
||
|
||
gdb_caching_proc skip_ctf_tests {
|
||
global enable_libctf
|
||
|
||
if {$enable_libctf eq "no"} {
|
||
return 1
|
||
}
|
||
|
||
set can_ctf [gdb_can_simple_compile ctfdebug {
|
||
int main () {
|
||
return 0;
|
||
}
|
||
} executable "additional_flags=-gctf"]
|
||
|
||
return [expr {!$can_ctf}]
|
||
}
|
||
|
||
# Return 1 if compiler supports -gstatement-frontiers. Otherwise,
|
||
# return 0.
|
||
|
||
gdb_caching_proc supports_statement_frontiers {
|
||
return [gdb_can_simple_compile supports_statement_frontiers {
|
||
int main () {
|
||
return 0;
|
||
}
|
||
} executable "additional_flags=-gstatement-frontiers"]
|
||
}
|
||
|
||
# Return 1 if compiler supports -mmpx -fcheck-pointer-bounds. Otherwise,
|
||
# return 0.
|
||
|
||
gdb_caching_proc supports_mpx_check_pointer_bounds {
|
||
set flags "additional_flags=-mmpx additional_flags=-fcheck-pointer-bounds"
|
||
return [gdb_can_simple_compile supports_mpx_check_pointer_bounds {
|
||
int main () {
|
||
return 0;
|
||
}
|
||
} executable $flags]
|
||
}
|
||
|
||
# Return 1 if compiler supports -fcf-protection=. Otherwise,
|
||
# return 0.
|
||
|
||
gdb_caching_proc supports_fcf_protection {
|
||
return [gdb_can_simple_compile supports_fcf_protection {
|
||
int main () {
|
||
return 0;
|
||
}
|
||
} executable "additional_flags=-fcf-protection=full"]
|
||
}
|
||
|
||
# Return 1 if symbols were read in using -readnow. Otherwise, return 0.
|
||
|
||
proc readnow { args } {
|
||
if { [llength $args] == 1 } {
|
||
set re [lindex $args 0]
|
||
} else {
|
||
set re ""
|
||
}
|
||
|
||
set readnow_p 0
|
||
# Given the listing from the following command can be very verbose, match
|
||
# the patterns line-by-line. This prevents timeouts from waiting for
|
||
# too much data to come at once.
|
||
set cmd "maint print objfiles $re"
|
||
gdb_test_multiple $cmd "" -lbl {
|
||
-re "\r\n.gdb_index: faked for \"readnow\"" {
|
||
# Record the we've seen the above pattern.
|
||
set readnow_p 1
|
||
exp_continue
|
||
}
|
||
-re -wrap "" {
|
||
# We don't care about any other input.
|
||
}
|
||
}
|
||
|
||
return $readnow_p
|
||
}
|
||
|
||
# Return index name if symbols were read in using an index.
|
||
# Otherwise, return "".
|
||
|
||
proc have_index { objfile } {
|
||
|
||
set res ""
|
||
set cmd "maint print objfiles $objfile"
|
||
gdb_test_multiple $cmd "" -lbl {
|
||
-re "\r\n.gdb_index: faked for \"readnow\"" {
|
||
set res ""
|
||
exp_continue
|
||
}
|
||
-re "\r\n.gdb_index:" {
|
||
set res "gdb_index"
|
||
exp_continue
|
||
}
|
||
-re "\r\n.debug_names:" {
|
||
set res "debug_names"
|
||
exp_continue
|
||
}
|
||
-re -wrap "" {
|
||
# We don't care about any other input.
|
||
}
|
||
}
|
||
|
||
return $res
|
||
}
|
||
|
||
# Return 1 if partial symbols are available. Otherwise, return 0.
|
||
|
||
proc psymtabs_p { } {
|
||
global gdb_prompt
|
||
|
||
set cmd "maint info psymtab"
|
||
gdb_test_multiple $cmd "" {
|
||
-re "$cmd\r\n$gdb_prompt $" {
|
||
return 0
|
||
}
|
||
-re -wrap "" {
|
||
return 1
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Verify that partial symtab expansion for $filename has state $readin.
|
||
|
||
proc verify_psymtab_expanded { filename readin } {
|
||
global gdb_prompt
|
||
|
||
set cmd "maint info psymtab"
|
||
set test "$cmd: $filename: $readin"
|
||
set re [multi_line \
|
||
" \{ psymtab \[^\r\n\]*$filename\[^\r\n\]*" \
|
||
" readin $readin" \
|
||
".*"]
|
||
|
||
gdb_test_multiple $cmd $test {
|
||
-re "$cmd\r\n$gdb_prompt $" {
|
||
unsupported $gdb_test_name
|
||
}
|
||
-re -wrap $re {
|
||
pass $gdb_test_name
|
||
}
|
||
}
|
||
}
|
||
|
||
# Add a .gdb_index section to PROGRAM.
|
||
# PROGRAM is assumed to be the output of standard_output_file.
|
||
# Returns the 0 if there is a failure, otherwise 1.
|
||
#
|
||
# STYLE controls which style of index to add, if needed. The empty
|
||
# string (the default) means .gdb_index; "-dwarf-5" means .debug_names.
|
||
|
||
proc add_gdb_index { program {style ""} } {
|
||
global srcdir GDB env
|
||
set contrib_dir "$srcdir/../contrib"
|
||
set env(GDB) [append_gdb_data_directory_option $GDB]
|
||
set result [catch "exec $contrib_dir/gdb-add-index.sh $style $program" output]
|
||
if { $result != 0 } {
|
||
verbose -log "result is $result"
|
||
verbose -log "output is $output"
|
||
return 0
|
||
}
|
||
|
||
return 1
|
||
}
|
||
|
||
# Add a .gdb_index section to PROGRAM, unless it alread has an index
|
||
# (.gdb_index/.debug_names). Gdb doesn't support building an index from a
|
||
# program already using one. Return 1 if a .gdb_index was added, return 0
|
||
# if it already contained an index, and -1 if an error occurred.
|
||
#
|
||
# STYLE controls which style of index to add, if needed. The empty
|
||
# string (the default) means .gdb_index; "-dwarf-5" means .debug_names.
|
||
|
||
proc ensure_gdb_index { binfile {style ""} } {
|
||
global decimal
|
||
|
||
set testfile [file tail $binfile]
|
||
set test "check if index present"
|
||
set has_index 0
|
||
set has_readnow 0
|
||
gdb_test_multiple "mt print objfiles ${testfile}" $test -lbl {
|
||
-re "\r\n\\.gdb_index: version ${decimal}(?=\r\n)" {
|
||
set has_index 1
|
||
gdb_test_lines "" $gdb_test_name ".*"
|
||
}
|
||
-re "\r\n\\.debug_names: exists(?=\r\n)" {
|
||
set has_index 1
|
||
gdb_test_lines "" $gdb_test_name ".*"
|
||
}
|
||
-re "\r\n(Cooked index in use|Psymtabs)(?=\r\n)" {
|
||
gdb_test_lines "" $gdb_test_name ".*"
|
||
}
|
||
-re ".gdb_index: faked for \"readnow\"" {
|
||
set has_readnow 1
|
||
gdb_test_lines "" $gdb_test_name ".*"
|
||
}
|
||
-re -wrap "" {
|
||
fail $gdb_test_name
|
||
}
|
||
}
|
||
|
||
if { $has_index } {
|
||
return 0
|
||
}
|
||
|
||
if { $has_readnow } {
|
||
return -1
|
||
}
|
||
|
||
if { [add_gdb_index $binfile $style] == "1" } {
|
||
return 1
|
||
}
|
||
|
||
return -1
|
||
}
|
||
|
||
# Return 1 if executable contains .debug_types section. Otherwise, return 0.
|
||
|
||
proc debug_types { } {
|
||
global hex
|
||
|
||
set cmd "maint info sections"
|
||
gdb_test_multiple $cmd "" {
|
||
-re -wrap "at $hex: .debug_types.*" {
|
||
return 1
|
||
}
|
||
-re -wrap "" {
|
||
return 0
|
||
}
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
# Return the addresses in the line table for FILE for which is_stmt is true.
|
||
|
||
proc is_stmt_addresses { file } {
|
||
global decimal
|
||
global hex
|
||
|
||
set is_stmt [list]
|
||
|
||
gdb_test_multiple "maint info line-table $file" "" {
|
||
-re "\r\n$decimal\[ \t\]+$decimal\[ \t\]+($hex)\[ \t\]+Y\[^\r\n\]*" {
|
||
lappend is_stmt $expect_out(1,string)
|
||
exp_continue
|
||
}
|
||
-re -wrap "" {
|
||
}
|
||
}
|
||
|
||
return $is_stmt
|
||
}
|
||
|
||
# Return 1 if hex number VAL is an element of HEXLIST.
|
||
|
||
proc hex_in_list { val hexlist } {
|
||
# Normalize val by removing 0x prefix, and leading zeros.
|
||
set val [regsub ^0x $val ""]
|
||
set val [regsub ^0+ $val "0"]
|
||
|
||
set re 0x0*$val
|
||
set index [lsearch -regexp $hexlist $re]
|
||
return [expr $index != -1]
|
||
}
|
||
|
||
# Override proc NAME to proc OVERRIDE for the duration of the execution of
|
||
# BODY.
|
||
|
||
proc with_override { name override body } {
|
||
# Implementation note: It's possible to implement the override using
|
||
# rename, like this:
|
||
# rename $name save_$name
|
||
# rename $override $name
|
||
# set code [catch {uplevel 1 $body} result]
|
||
# rename $name $override
|
||
# rename save_$name $name
|
||
# but there are two issues here:
|
||
# - the save_$name might clash with an existing proc
|
||
# - the override is no longer available under its original name during
|
||
# the override
|
||
# So, we use this more elaborate but cleaner mechanism.
|
||
|
||
# Save the old proc, if it exists.
|
||
if { [info procs $name] != "" } {
|
||
set old_args [info args $name]
|
||
set old_body [info body $name]
|
||
set existed true
|
||
} else {
|
||
set existed false
|
||
}
|
||
|
||
# Install the override.
|
||
set new_args [info args $override]
|
||
set new_body [info body $override]
|
||
eval proc $name {$new_args} {$new_body}
|
||
|
||
# Execute body.
|
||
set code [catch {uplevel 1 $body} result]
|
||
|
||
# Restore old proc if it existed on entry, else delete it.
|
||
if { $existed } {
|
||
eval proc $name {$old_args} {$old_body}
|
||
} else {
|
||
rename $name ""
|
||
}
|
||
|
||
# Return as appropriate.
|
||
if { $code == 1 } {
|
||
global errorInfo errorCode
|
||
return -code error -errorinfo $errorInfo -errorcode $errorCode $result
|
||
} elseif { $code > 1 } {
|
||
return -code $code $result
|
||
}
|
||
|
||
return $result
|
||
}
|
||
|
||
# Setup tuiterm.exp environment. To be used in test-cases instead of
|
||
# "load_lib tuiterm.exp". Calls initialization function and schedules
|
||
# finalization function.
|
||
proc tuiterm_env { } {
|
||
load_lib tuiterm.exp
|
||
}
|
||
|
||
# Dejagnu has a version of note, but usage is not allowed outside of dejagnu.
|
||
# Define a local version.
|
||
proc gdb_note { message } {
|
||
verbose -- "NOTE: $message" 0
|
||
}
|
||
|
||
# Return 1 if compiler supports -fuse-ld=gold, otherwise return 0.
|
||
gdb_caching_proc have_fuse_ld_gold {
|
||
set me "have_fuse_ld_gold"
|
||
set flags "additional_flags=-fuse-ld=gold"
|
||
set src { int main() { return 0; } }
|
||
return [gdb_simple_compile $me $src executable $flags]
|
||
}
|
||
|
||
# Return 1 if linker supports -Ttext-segment, otherwise return 0.
|
||
gdb_caching_proc linker_supports_Ttext_segment_flag {
|
||
set me "linker_supports_Ttext_segment_flag"
|
||
set flags additional_flags="-Wl,-Ttext-segment=0x7000000"
|
||
set src { int main() { return 0; } }
|
||
return [gdb_simple_compile $me $src executable $flags]
|
||
}
|
||
|
||
# Return 1 if linker supports -Ttext, otherwise return 0.
|
||
gdb_caching_proc linker_supports_Ttext_flag {
|
||
set me "linker_supports_Ttext_flag"
|
||
set flags additional_flags="-Wl,-Ttext=0x7000000"
|
||
set src { int main() { return 0; } }
|
||
return [gdb_simple_compile $me $src executable $flags]
|
||
}
|
||
|
||
# Return 1 if linker supports --image-base, otherwise 0.
|
||
gdb_caching_proc linker_supports_image_base_flag {
|
||
set me "linker_supports_image_base_flag"
|
||
set flags additional_flags="-Wl,--image-base=0x7000000"
|
||
set src { int main() { return 0; } }
|
||
return [gdb_simple_compile $me $src executable $flags]
|
||
}
|
||
|
||
|
||
# Return 1 if compiler supports scalar_storage_order attribute, otherwise
|
||
# return 0.
|
||
gdb_caching_proc supports_scalar_storage_order_attribute {
|
||
set me "supports_scalar_storage_order_attribute"
|
||
set src {
|
||
#include <string.h>
|
||
struct sle {
|
||
int v;
|
||
} __attribute__((scalar_storage_order("little-endian")));
|
||
struct sbe {
|
||
int v;
|
||
} __attribute__((scalar_storage_order("big-endian")));
|
||
struct sle sle;
|
||
struct sbe sbe;
|
||
int main () {
|
||
sle.v = sbe.v = 0x11223344;
|
||
int same = memcmp (&sle, &sbe, sizeof (int)) == 0;
|
||
int sso = !same;
|
||
return sso;
|
||
}
|
||
}
|
||
if { ![gdb_simple_compile $me $src executable ""] } {
|
||
return 0
|
||
}
|
||
|
||
set result [remote_exec target $obj]
|
||
set status [lindex $result 0]
|
||
set output [lindex $result 1]
|
||
if { $output != "" } {
|
||
return 0
|
||
}
|
||
|
||
return $status
|
||
}
|
||
|
||
# Return 1 if compiler supports __GNUC__, otherwise return 0.
|
||
gdb_caching_proc supports_gnuc {
|
||
set me "supports_gnuc"
|
||
set src {
|
||
#ifndef __GNUC__
|
||
#error "No gnuc"
|
||
#endif
|
||
}
|
||
return [gdb_simple_compile $me $src object ""]
|
||
}
|
||
|
||
# Return 1 if target supports mpx, otherwise return 0.
|
||
gdb_caching_proc have_mpx {
|
||
global srcdir
|
||
|
||
set me "have_mpx"
|
||
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
|
||
verbose "$me: target does not support mpx, returning 0" 2
|
||
return 0
|
||
}
|
||
|
||
# Compile a test program.
|
||
set src {
|
||
#include "nat/x86-cpuid.h"
|
||
|
||
int main() {
|
||
unsigned int eax, ebx, ecx, edx;
|
||
|
||
if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
|
||
return 0;
|
||
|
||
if ((ecx & bit_OSXSAVE) == bit_OSXSAVE)
|
||
{
|
||
if (__get_cpuid_max (0, (void *)0) < 7)
|
||
return 0;
|
||
|
||
__cpuid_count (7, 0, eax, ebx, ecx, edx);
|
||
|
||
if ((ebx & bit_MPX) == bit_MPX)
|
||
return 1;
|
||
|
||
}
|
||
return 0;
|
||
}
|
||
}
|
||
set compile_flags "incdir=${srcdir}/.."
|
||
if {![gdb_simple_compile $me $src executable $compile_flags]} {
|
||
return 0
|
||
}
|
||
|
||
set result [remote_exec target $obj]
|
||
set status [lindex $result 0]
|
||
set output [lindex $result 1]
|
||
if { $output != "" } {
|
||
set status 0
|
||
}
|
||
|
||
remote_file build delete $obj
|
||
|
||
if { $status == 0 } {
|
||
verbose "$me: returning $status" 2
|
||
return $status
|
||
}
|
||
|
||
# Compile program with -mmpx -fcheck-pointer-bounds, try to trigger
|
||
# 'No MPX support', in other words, see if kernel supports mpx.
|
||
set src { int main (void) { return 0; } }
|
||
set comp_flags {}
|
||
append comp_flags " additional_flags=-mmpx"
|
||
append comp_flags " additional_flags=-fcheck-pointer-bounds"
|
||
if {![gdb_simple_compile $me-2 $src executable $comp_flags]} {
|
||
return 0
|
||
}
|
||
|
||
set result [remote_exec target $obj]
|
||
set status [lindex $result 0]
|
||
set output [lindex $result 1]
|
||
set status [expr ($status == 0) \
|
||
&& ![regexp "^No MPX support\r\n" $output]]
|
||
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $status" 2
|
||
return $status
|
||
}
|
||
|
||
# Return 1 if target supports avx, otherwise return 0.
|
||
gdb_caching_proc have_avx {
|
||
global srcdir
|
||
|
||
set me "have_avx"
|
||
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
|
||
verbose "$me: target does not support avx, returning 0" 2
|
||
return 0
|
||
}
|
||
|
||
# Compile a test program.
|
||
set src {
|
||
#include "nat/x86-cpuid.h"
|
||
|
||
int main() {
|
||
unsigned int eax, ebx, ecx, edx;
|
||
|
||
if (!x86_cpuid (1, &eax, &ebx, &ecx, &edx))
|
||
return 0;
|
||
|
||
if ((ecx & (bit_AVX | bit_OSXSAVE)) == (bit_AVX | bit_OSXSAVE))
|
||
return 1;
|
||
else
|
||
return 0;
|
||
}
|
||
}
|
||
set compile_flags "incdir=${srcdir}/.."
|
||
if {![gdb_simple_compile $me $src executable $compile_flags]} {
|
||
return 0
|
||
}
|
||
|
||
set result [remote_exec target $obj]
|
||
set status [lindex $result 0]
|
||
set output [lindex $result 1]
|
||
if { $output != "" } {
|
||
set status 0
|
||
}
|
||
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $status" 2
|
||
return $status
|
||
}
|
||
|
||
# Called as either:
|
||
# - require EXPR VAL
|
||
# - require EXPR OP VAL
|
||
# In the first case, OP is ==.
|
||
#
|
||
# Require EXPR OP VAL, where EXPR is evaluated in caller context. If not,
|
||
# return in the caller's context.
|
||
|
||
proc require { fn arg1 {arg2 ""} } {
|
||
if { $arg2 == "" } {
|
||
set op ==
|
||
set val $arg1
|
||
} else {
|
||
set op $arg1
|
||
set val $arg2
|
||
}
|
||
set res [uplevel 1 $fn]
|
||
if { [expr $res $op $val] } {
|
||
return
|
||
}
|
||
|
||
switch "$fn $op $val" {
|
||
"gdb_skip_xml_test == 0" { set msg "missing xml support" }
|
||
"ensure_gdb_index $binfile != -1" -
|
||
"ensure_gdb_index $binfile -dwarf-5 != -1" {
|
||
set msg "Couldn't ensure index in binfile"
|
||
}
|
||
"use_gdb_stub == 0" {
|
||
set msg "Remote stub used"
|
||
}
|
||
default { set msg "$fn != $val" }
|
||
}
|
||
|
||
untested $msg
|
||
return -code return 0
|
||
}
|
||
|
||
# Wait up to ::TIMEOUT seconds for file PATH to exist on the target system.
|
||
# Return 1 if it does exist, 0 otherwise.
|
||
|
||
proc target_file_exists_with_timeout { path } {
|
||
for {set i 0} {$i < $::timeout} {incr i} {
|
||
if { [remote_file target exists $path] } {
|
||
return 1
|
||
}
|
||
|
||
sleep 1
|
||
}
|
||
|
||
return 0
|
||
}
|
||
|
||
gdb_caching_proc has_hw_wp_support {
|
||
# Power 9, proc rev 2.2 does not support HW watchpoints due to HW bug.
|
||
# Need to use a runtime test to determine if the Power processor has
|
||
# support for HW watchpoints.
|
||
global srcdir subdir gdb_prompt inferior_exited_re
|
||
|
||
set compile_flags {debug nowarnings quiet}
|
||
set me "has_hw_wp_support"
|
||
|
||
# Compile a test program to test if HW watchpoints are supported
|
||
set src {
|
||
int main (void) {
|
||
volatile int local;
|
||
local = 1;
|
||
if (local == 1)
|
||
return 1;
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if {![gdb_simple_compile $me $src executable $compile_flags]} {
|
||
return 0
|
||
}
|
||
|
||
gdb_exit
|
||
gdb_start
|
||
gdb_reinitialize_dir $srcdir/$subdir
|
||
gdb_load "$obj"
|
||
|
||
if ![runto_main] {
|
||
set has_hw_wp_support 0
|
||
return $has_hw_wp_support
|
||
}
|
||
|
||
# The goal is to determine if HW watchpoints are available in general.
|
||
# Use "watch" and then check if gdb responds with hardware watch point.
|
||
set test "watch local"
|
||
|
||
gdb_test_multiple $test "Check for HW watchpoint support" {
|
||
-re ".*Hardware watchpoint.*" {
|
||
# HW watchpoint supported by platform
|
||
verbose -log "\n$me: Hardware watchpoint detected"
|
||
set has_hw_wp_support 1
|
||
}
|
||
-re ".*$gdb_prompt $" {
|
||
set has_hw_wp_support 0
|
||
verbose -log "\n$me: Default, hardware watchpoint not deteced"
|
||
}
|
||
}
|
||
|
||
gdb_exit
|
||
remote_file build delete $obj
|
||
|
||
verbose "$me: returning $has_hw_wp_support" 2
|
||
return $has_hw_wp_support
|
||
}
|
||
|
||
# Return a list of all the accepted values of the set command SET_CMD.
|
||
|
||
proc get_set_option_choices {set_cmd} {
|
||
global gdb_prompt
|
||
|
||
set values {}
|
||
|
||
set test "complete $set_cmd"
|
||
gdb_test_multiple "complete $set_cmd " "$test" {
|
||
-re "$set_cmd (\[^\r\n\]+)\r\n" {
|
||
lappend values $expect_out(1,string)
|
||
exp_continue
|
||
}
|
||
-re "$gdb_prompt " {
|
||
pass $test
|
||
}
|
||
}
|
||
return $values
|
||
}
|
||
|
||
# Return the compiler that can generate 32-bit ARM executables. Used
|
||
# when testing biarch support on Aarch64. If ARM_CC_FOR_TARGET is
|
||
# set, use that. If not, try a few common compiler names, making sure
|
||
# that the executable they produce can run.
|
||
|
||
gdb_caching_proc arm_cc_for_target {
|
||
if {[info exists ::ARM_CC_FOR_TARGET]} {
|
||
# If the user specified the compiler explicitly, then don't
|
||
# check whether the resulting binary runs outside GDB. Assume
|
||
# that it does, and if it turns out it doesn't, then the user
|
||
# should get loud FAILs, instead of UNSUPPORTED.
|
||
return $::ARM_CC_FOR_TARGET
|
||
}
|
||
|
||
# Fallback to a few common compiler names. Also confirm the
|
||
# produced binary actually runs on the system before declaring
|
||
# we've found the right compiler.
|
||
|
||
if [istarget "*-linux*-*"] {
|
||
set compilers {
|
||
arm-linux-gnueabi-gcc
|
||
arm-none-linux-gnueabi-gcc
|
||
arm-linux-gnueabihf-gcc
|
||
}
|
||
} else {
|
||
set compilers {}
|
||
}
|
||
|
||
foreach compiler $compilers {
|
||
if {![is_remote host] && [which $compiler] == 0} {
|
||
# Avoid "default_target_compile: Can't find
|
||
# $compiler." warning issued from gdb_compile.
|
||
continue
|
||
}
|
||
|
||
set src { int main() { return 0; } }
|
||
if {[gdb_simple_compile aarch64-32bit \
|
||
$src \
|
||
executable [list compiler=$compiler]]} {
|
||
|
||
set result [remote_exec target $obj]
|
||
set status [lindex $result 0]
|
||
set output [lindex $result 1]
|
||
|
||
file delete $obj
|
||
|
||
if { $output == "" && $status == 0} {
|
||
return $compiler
|
||
}
|
||
}
|
||
}
|
||
|
||
return ""
|
||
}
|
||
|
||
# Always load compatibility stuff.
|
||
load_lib future.exp
|