forked from Imagelibrary/binutils-gdb
4983bb052d
Before now, we were relying on gcc -B to repoint GCC at our freshly-built linker, and assuming we could use this to run tests that do linker dedup. This is, alas, not reliable (building --with-ld=/an/absolute/path bypasses -B searches for the linker), and we would like the libctf tests in particular to not fail if the compiler uses a linker that cannot deduplicate (simply skipping such tests). Add a new testsuite function that tries to link one of the lookup tests' testcases (which is known to produce conflicting types, i.e. a dict with per-translation-unit children) and then does an objdump and greps it for signs of the per-translation-unit children. If there are none, the linker probably just concatenated the sections: i.e., it is not a linker that can deduplicate CTF. libctf/ PR libctf/33162 * testsuite/config/default.exp (objdump): Introduce. (OBJDUMPFLAGS): Likewise. * testsuite/lib/ctf-lib.exp (check_ctf_linker_dedup): New. * testsuite/libctf-lookup/lookup.exp: Use it. * testsuite/libctf-regression/libctf-repeat-cu.exp: Likewise. * testsuite/libctf-regression/regression.exp: Likewise.
54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
# Copyright (C) 2021-2025 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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if {![check_ctf_available]} {
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unsupported "no CTF format support in the compiler"
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return 0
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}
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if {![check_ctf_linker_dedup]} {
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unsupported "no CTF deduplication support in the linker"
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return 0
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}
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if ![is_elf_format] {
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unsupported "CTF needs bfd changes to be emitted on non-ELF"
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return 0
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}
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if {[info exists env(LC_ALL)]} {
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set old_lc_all $env(LC_ALL)
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}
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set env(LC_ALL) "C"
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set ctf_test_list [lsort [glob -nocomplain $srcdir/$subdir/*.lk]]
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foreach ctf_test $ctf_test_list {
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verbose [file rootname $ctf_test]
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verbose running lookup test on $ctf_test
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run_lookup_test [file rootname $ctf_test]
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}
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if {[info exists old_lc_all]} {
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set env(LC_ALL) $old_lc_all
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} else {
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unset env(LC_ALL)
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}
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