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4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
92 lines
2.4 KiB
Plaintext
92 lines
2.4 KiB
Plaintext
# Copyright 2020-2022 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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# Some compilers give anonymous structures a linkage name, and that
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# linkage name doesn't demangle (within GDB calling gdb_demangle
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# return NULL). At one point this caused GDB to crash due to
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# dereferencing a NULL pointer.
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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 -debug.S
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# Set up the DWARF for the test.
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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
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cu {} {
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DW_TAG_compile_unit {
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{DW_AT_language @DW_LANG_C_plus_plus}
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{DW_AT_name $srcfile}
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{DW_AT_comp_dir /tmp}
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} {
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declare_labels a_l b_l
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a_l: DW_TAG_base_type {
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{DW_AT_byte_size 4 DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name int}
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}
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# To expose the bug that existed at one point this
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# structure must have a linkage name, but no name, and the
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# linkage name is something that doesn't demangle.
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b_l: DW_TAG_structure_type {
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{DW_AT_byte_size 8 DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_linkage_name <anon>}
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} {
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member {
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{name x}
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{type :$a_l}
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{data_member_location 0 data1}
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}
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member {
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{name y}
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{type :$a_l}
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{data_member_location 0 data1}
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}
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}
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DW_TAG_subprogram {
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{MACRO_AT_func {main}}
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{type :$a_l}
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}
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DW_TAG_variable {
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{type :$b_l}
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{external 1 flag}
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{DW_AT_name global_var}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol global_var]
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} SPECIAL_expr}
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}
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}
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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gdb_assert [runto_main] "run to main"
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gdb_test "p global_var" " = {x = 0, y = 0}"
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