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.
79 lines
2.4 KiB
Plaintext
79 lines
2.4 KiB
Plaintext
# Basic expect script for libctf lookup tests
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# Copyright (C) 1993-2025 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 file 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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# Written by Jeffrey Wheat (cassidy@cygnus.com)
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#
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# Don't run anything if Tcl is too old to have try / catch.
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if { ! $have_tcl_try } {
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log_and_exit
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}
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if ![info exists ld] then {
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set ld [findfile $base_dir/../ld/ld-new $base_dir/../ld/ld-new [transform ld]]
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}
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if ![info exists as] then {
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set as [findfile $base_dir/../gas/as-new $base_dir/../gas/as-new [transform as]]
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}
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if ![info exists objdump] then {
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set objdump [findfile $base_dir/../binutils/objdump]
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}
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remote_exec host "mkdir -p tmpdir"
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# Make symlinks from tmpdir/libctf to the linker and assembler in the
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# build tree, so that we can use a -B option to gcc to force it to use
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# the newly built linker and assembler.
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if {![file isdirectory tmpdir/libctf]} then {
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catch "exec mkdir tmpdir/libctf" status
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catch "exec ln -s ../../../ld/ld-new tmpdir/libctf/ld" status
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catch "exec ln -s ld tmpdir/libctf/collect-ld" status
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catch "exec ln -s ../../../gas/as-new tmpdir/libctf/as" status
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}
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set gcc_B_opt "-B[pwd]/tmpdir/libctf/"
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set ld_L_opt ""
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if {![info exists CC]} {
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set CC gcc
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}
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if {![info exists CFLAGS]} {
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set CFLAGS "-g -O2"
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}
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if {![info exists CC_FOR_TARGET]} {
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set CC_FOR_TARGET [find_gcc]
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}
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if {![info exists CFLAGS_FOR_TARGET]} {
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set CFLAGS_FOR_TARGET $CFLAGS
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}
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if ![info exists AR] then {
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set AR [findfile $base_dir/../binutils/ar]
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}
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if {![info exists OBJDUMP]} {
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set OBJDUMP [findfile $base_dir/../binutils/objdump]
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}
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if ![info exists OBJDUMPFLAGS] then {
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set OBJDUMPFLAGS {}
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}
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# load the utility procedures
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load_lib ctf-lib.exp
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