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76 lines
2.1 KiB
Plaintext
76 lines
2.1 KiB
Plaintext
# Copyright 2021-2023 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 our workaround for a GCC 11 bug, where it sometimes puts a -1 value for
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# DW_AT_data_member_location:
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#
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# Negative DW_AT_data_member_location
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101378
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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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require dwarf2_support
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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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cu {} {
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DW_TAG_compile_unit {
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{DW_AT_language @DW_LANG_C99}
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{DW_AT_producer "GNU C++17 11.1.0 -mtune=generic -march=x86-64 -g3 -O0"}
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{name ${::srcfile}}
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} {
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declare_labels int_label struct_label
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int_label: DW_TAG_base_type {
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{DW_AT_byte_size 4 DW_FORM_udata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name "int"}
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}
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struct_label: DW_TAG_structure_type {
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{DW_AT_name "the_struct"}
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{DW_AT_byte_size 4 DW_FORM_udata}
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} {
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DW_TAG_member {
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{DW_AT_name "field"}
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{DW_AT_type :$int_label}
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{DW_AT_data_member_location -1 DW_FORM_sdata}
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}
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}
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DW_TAG_variable {
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{DW_AT_name "s"}
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{DW_AT_type :$struct_label}
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{DW_AT_location {DW_OP_addr [gdb_target_symbol "s"]} 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} [list $srcfile $asm_file] {nodebug}] } {
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return
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}
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if { ![runto_main] } {
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return
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}
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gdb_test "print /x s" " = {field = 0x11222211}"
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gdb_test "print /x s.field" " = 0x11222211"
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