129 lines
3.6 KiB
Text
129 lines
3.6 KiB
Text
# Copyright 2021-2022 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 is a basic first test for using the testsuite's Dwarf assembler to
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# create split debug information. There's not unique feature of GDB being
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# tested here, this exists only as a basic test for the testsuite
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# infrastructure.
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load_lib dwarf.exp
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# This test can only be run on targets which support DWARF-2 and use gas.
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if {![dwarf2_support]} {
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return 0
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}
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standard_testfile .c -dw.S
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set asm_file [standard_output_file $srcfile2]
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Dwarf::assemble $asm_file {
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global srcfile binfile objdir
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set debug_addr_lbl ".unknown!!"
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# The information that will be split out into the .dwo file.
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cu {fission 1} {
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# Capture a label to the current start of the .debug_addr
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# section. This will be passed to DW_AT_GNU_addr_base in the
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# non-split CU later.
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set debug_addr_lbl [debug_addr_label]
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compile_unit {
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{language @DW_LANG_C}
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{name ${srcfile}}
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{DW_AT_comp_dir ${objdir}}
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{DW_AT_GNU_dwo_id 0x1234 DW_FORM_data8}
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} {
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declare_labels int4_type struct_type
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int4_type: DW_TAG_base_type {
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{DW_AT_byte_size 4 DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name integer}
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}
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struct_type: DW_TAG_structure_type {
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{DW_AT_name "foo_t"}
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{DW_AT_byte_size 12 DW_FORM_sdata}
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} {
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member {
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{name "aa"}
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{type :$int4_type}
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{data_member_location 0 data1}
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}
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member {
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{name "bb"}
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{type :$int4_type}
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{data_member_location 4 data1}
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}
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member {
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{name "cc"}
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{type :$int4_type}
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{data_member_location 8 data1}
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}
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}
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DW_TAG_variable {
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{DW_AT_name global_var}
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{DW_AT_type :$struct_type}
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{DW_AT_location {
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DW_OP_GNU_addr_index [gdb_target_symbol global_var]
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} SPECIAL_expr}
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{external 1 flag}
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}
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subprogram {
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{external 1 flag}
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{DW_AT_name main DW_FORM_string}
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{MACRO_AT_func {main}}
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}
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}
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}
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# The information that will remain in the .o file.
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cu {} {
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compile_unit {
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{DW_AT_GNU_dwo_name ${binfile}.dwo DW_FORM_strp}
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{DW_AT_comp_dir ${objdir}}
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{DW_AT_GNU_dwo_id 0x1234 DW_FORM_data8}
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{DW_AT_GNU_addr_base $debug_addr_lbl}
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} {
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# Nothing.
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}
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}
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}
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# Compile both source files to create the executable. As we compile
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# ASM_FILE we split out the debug information into the dwo file.
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set object_file [standard_output_file ${testfile}.o]
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if { [build_executable_and_dwo_files "${testfile}.exp" ${binfile} {nodebug} \
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[list $asm_file {nodebug split-dwo} ${object_file}] \
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[list $srcfile {nodebug}]] } {
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perror "failed to compile ${gdb_test_file_name}"
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return -1
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}
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# Now we can start GDB.
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clean_restart ${testfile}
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if ![runto_main] {
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return -1
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}
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# Print the type of global_var. This type information is entirely
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# fictional, it only exists in the DWARF. If we don't have the DWARF
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# information then there's no way we can print this.
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gdb_test "p global_var" " = \\{aa = 0, bb = 0, cc = 0\\}"
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