198 lines
7.2 KiB
Text
198 lines
7.2 KiB
Text
# Copyright 2019-2022 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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# Test the -catch-throw, -catch-rethrow, and -catch-catch MI commands.
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if { [skip_cplus_tests] } { return }
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load_lib mi-support.exp
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set MIFLAGS "-i=mi"
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standard_testfile .cc
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
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untested "failed to compile"
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return -1
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}
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mi_clean_restart $binfile
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if {[mi_runto_main] < 0} {
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return -1
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}
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set libstdcxx_probe_tests_supported [expr ![mi_skip_libstdcxx_probe_tests]]
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# Grab some line numbers we'll need.
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set catch_1_lineno [gdb_get_line_number "Catch 1"]
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set catch_2_lineno [gdb_get_line_number "Catch 2"]
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set throw_1_lineno [gdb_get_line_number "Throw 1"]
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set throw_2_lineno [gdb_get_line_number "Throw 2"]
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set main_lineno [gdb_get_line_number "Stop here"]
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# Restart this test, load the test binary and set a breakpoint in
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# main.
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proc restart_for_test {} {
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global srcdir subdir binfile srcfile
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global main_lineno
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if {[mi_gdb_start]} {
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return
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}
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mi_delete_breakpoints
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mi_gdb_reinitialize_dir $srcdir/$subdir
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mi_gdb_load ${binfile}
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mi_runto_main
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mi_create_breakpoint \
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"$srcfile:${main_lineno}" "break before exiting program" \
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-disp keep -func "main.*" \
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-file ".*mi-catch-cpp-exceptions.cc" -line ${main_lineno}
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}
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# Issue an -exec-continue then wait for GDB to catch a C++ exception
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# event in FUNC on LINE. Use TESTNAME to make tests unique.
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proc continue_to_next_exception { func line testname } {
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global hex
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mi_send_resuming_command "exec-continue" \
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"exec-continue"
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mi_expect_stop "exception-caught" ".*" ".*" ".*" ".*" \
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{} "run until an exception is caught: $testname"
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mi_gdb_test "-stack-list-frames 1 1" \
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"\\^done,stack=\\\[frame=\{level=\"1\",addr=\"$hex\",func=\"${func}\",.*,line=\"${line}\".*\}\\\]" \
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"check previous frame: $testname"
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}
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# Issue an -exec-continue and stop at the breakpoint in main.
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proc continue_to_breakpoint_in_main {} {
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global main_lineno
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mi_send_resuming_command "exec-continue" "exec-continue to main"
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mi_expect_stop "breakpoint-hit" "main" ".*" ".*" "${main_lineno}" \
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{.* disp="keep"} "run until breakpoint in main"
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}
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# TYPE is one of throw, rethrow, or catch. This proc creates a catch
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# point using -catch-TYPE. The optional string EXTRA is any extra
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# arguments to pass when setting up the catchpoint.
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proc setup_catchpoint {type {extra ""}} {
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global decimal
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mi_gdb_test "-catch-${type} ${extra}" \
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"\\^done,bkpt=\{number=\"$decimal\",type=\"catchpoint\".*what=\"exception ${type}\",catch-type=\"${type}\".*\}" \
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"Setup -catch-${type}"
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}
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# Ensure that -catch-throw will catch only throws and nothing else.
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with_test_prefix "-catch-throw" {
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restart_for_test
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setup_catchpoint "throw"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 1"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 2"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 3"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 4"
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continue_to_breakpoint_in_main
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}
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# Ensure that -catch-rethrow catches only rethrows and nothing else.
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with_test_prefix "-catch-rethrow" {
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restart_for_test
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setup_catchpoint "rethrow"
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continue_to_next_exception "foo" "${throw_2_lineno}" "rethrow 1"
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continue_to_next_exception "foo" "${throw_2_lineno}" "rethrow 2"
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continue_to_breakpoint_in_main
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}
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# Ensure that -catch-catch catches only catch points, and nothing
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# else.
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with_test_prefix "-catch-catch" {
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restart_for_test
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setup_catchpoint "catch"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 1"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 2"
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continue_to_next_exception "main" "${catch_2_lineno}" "catch 3"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 4"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 5"
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continue_to_next_exception "main" "${catch_2_lineno}" "catch 6"
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continue_to_breakpoint_in_main
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}
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if { $libstdcxx_probe_tests_supported == 1 } {
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# Now check that all of the command with a regexp that doesn't match,
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# don't trigger.
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with_test_prefix "all with invalid regexp" {
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restart_for_test
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setup_catchpoint "throw" "-r blahblah"
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setup_catchpoint "rethrow" "-r woofwoof"
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setup_catchpoint "catch" "-r miowmiow"
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continue_to_breakpoint_in_main
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}
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} else {
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unsupported "all with invalid regexp"
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}
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if { $libstdcxx_probe_tests_supported == 1 } {
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# Now check that all of the commands with a regexp that does match,
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# still trigger.
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with_test_prefix "all with valid regexp" {
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restart_for_test
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setup_catchpoint "throw" "-r my_ex"
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setup_catchpoint "rethrow" "-r _except"
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setup_catchpoint "catch" "-r my_exception"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 1"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 1"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 2"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 2"
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continue_to_next_exception "foo" "${throw_2_lineno}" "rethrow 1"
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continue_to_next_exception "main" "${catch_2_lineno}" "catch 3"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 3"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 4"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 4"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 5"
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continue_to_next_exception "foo" "${throw_2_lineno}" "rethrow 2"
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continue_to_next_exception "main" "${catch_2_lineno}" "catch 6"
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continue_to_breakpoint_in_main
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}
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} else {
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unsupported "all with valid regexp"
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}
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# Check that the temporary switch works on its own.
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with_test_prefix "all with -t" {
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restart_for_test
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setup_catchpoint "throw" "-t"
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setup_catchpoint "rethrow" "-t"
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setup_catchpoint "catch" "-t"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 1"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 1"
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continue_to_next_exception "foo" "${throw_2_lineno}" "rethrow 1"
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continue_to_breakpoint_in_main
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}
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if { $libstdcxx_probe_tests_supported == 1 } {
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# Check that the temporary switch works when used with a regexp.
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with_test_prefix "all with -t and regexp" {
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restart_for_test
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setup_catchpoint "throw" "-t -r my_ex"
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setup_catchpoint "rethrow" "-t -r _except"
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setup_catchpoint "catch" "-t -r my_exception"
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continue_to_next_exception "bar" "${throw_1_lineno}" "throw 1"
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continue_to_next_exception "foo" "${catch_1_lineno}" "catch 1"
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continue_to_next_exception "foo" "${throw_2_lineno}" "rethrow 1"
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continue_to_breakpoint_in_main
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}
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} else {
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unsupported "all with -t and regexp"
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}
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