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#! /bin/sh
# Copyright (C) 2025 Mark J. Wielaard <mark@klomp.org>
# This file is part of elfutils.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# elfutils is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
. $srcdir/test-subr.sh
# Using GCC 15.0.1 20250310 (experimental)
#
# echo "void foo () { }" | g++ -g -c -x c++ -std=c++20 - -o cpp.o
# echo "int main () { }" | gcc -g -c -x c -std=c23 - -o c.o
# gcc -g -o testfile-lnames cpp.o c.o
#
# Note this version outputs an older DW_AT_language you need to
# see the DW_AT_language_version to see the real std used.
testfiles testfile-lnames
testrun_compare ${abs_top_builddir}/src/readelf --debug-dump=info testfile-lnames <<\EOF
DWARF section [28] '.debug_info' at offset 0x3314:
[Offset]
Compilation unit at offset 0:
Version: 5, Abbreviation section offset: 0, Address size: 8, Offset size: 4
Unit type: compile (1)
[ c] compile_unit abbrev: 1
producer (strp) "GNU C++20 15.0.1 20250310 (experimental) -mtune=generic -march=x86-64 -g -std=c++20"
language (data1) C_plus_plus_14 (33)
language_name (data1) C_plus_plus (4)
language_version (data4) 202002
name (line_strp) "<stdin>"
comp_dir (line_strp) "/tmp"
low_pc (addr) 0x0000000000401106 <_Z3foov>
high_pc (data8) 7 (0x000000000040110d <main>)
stmt_list (sec_offset) 0
[ 33] subprogram abbrev: 2
external (flag_present) yes
name (string) "foo"
decl_file (data1) <stdin> (1)
decl_line (data1) 1
decl_column (data1) 6
linkage_name (strp) "_Z3foov"
low_pc (addr) 0x0000000000401106 <_Z3foov>
high_pc (data8) 7 (0x000000000040110d <main>)
frame_base (exprloc)
[ 0] call_frame_cfa
call_all_calls (flag_present) yes
Compilation unit at offset 82:
Version: 5, Abbreviation section offset: 51, Address size: 8, Offset size: 4
Unit type: compile (1)
[ 5e] compile_unit abbrev: 1
producer (strp) "GNU C23 15.0.1 20250310 (experimental) -mtune=generic -march=x86-64 -g -std=c23"
language (data1) C11 (29)
language_name (data1) C (3)
language_version (data4) 202311
name (line_strp) "<stdin>"
comp_dir (line_strp) "/tmp"
low_pc (addr) 0x000000000040110d <main>
high_pc (data8) 11 (0x0000000000401118 <_fini>)
stmt_list (sec_offset) 76
[ 85] subprogram abbrev: 2
external (flag_present) yes
name (strp) "main"
decl_file (data1) <stdin> (1)
decl_line (data1) 1
decl_column (data1) 5
prototyped (flag_present) yes
type (ref4) [ a3]
low_pc (addr) 0x000000000040110d <main>
high_pc (data8) 11 (0x0000000000401118 <_fini>)
frame_base (exprloc)
[ 0] call_frame_cfa
call_all_calls (flag_present) yes
[ a3] base_type abbrev: 3
byte_size (data1) 4
encoding (data1) signed (5)
name (string) "int"
EOF
exit 0
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