109 lines
3.6 KiB
Text
109 lines
3.6 KiB
Text
# Test handling of weak undefined symbols
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# Copyright (C) 2001-2016 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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# The linker should accept references to undefined weaks without error,
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# and resolve them to zero in a static executable. Ought to work for
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# some a.out targets too.
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set testname "weak undefined data symbols"
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if { ![is_elf_format] && ![is_pecoff_format] } then {
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unsupported $testname
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} elseif {![ld_assemble $as $srcdir/$subdir/weak-undef.s \
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tmpdir/weak-undef.o]} then {
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# It's OK if .weak doesn't work on this target.
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unresolved $testname
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} elseif {![ld_simple_link $ld tmpdir/weak-undef \
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"tmpdir/weak-undef.o -T $srcdir/$subdir/weak-undef.t"]} then {
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# Weak symbols are broken for non-i386 PE targets.
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if {! [istarget i?86-*-*]} {
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setup_xfail *-*-pe*
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}
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setup_xfail pj-*-*
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fail $testname
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} elseif {![is_remote host] && [which $objdump] == 0} then {
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unresolved $testname
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} else {
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set exec_output [run_host_cmd "$objdump" "-s tmpdir/weak-undef"]
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set exec_output [prune_warnings $exec_output]
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verbose -log $exec_output
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set output_regexp ".*Contents of section .data:.*0000 00000000 11111111.*"
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if {[regexp $output_regexp $exec_output]} then {
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pass $testname
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} else {
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fail $testname
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}
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}
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# When linking a shared lib, weak undefined symbols should become dynamic.
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set testname "weak undefined function symbols in shared lib"
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set asflags ""
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switch -glob $target_triplet {
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aarch64* -
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arm* -
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powerpc* { set asflags "--defsym BL=1" }
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hppa* { set asflags "--defsym HPPA=1" }
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i\[3-7\]86* -
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x86_64* { set asflags "--defsym CALLPLT=1" }
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}
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if { $asflags == "" || ![is_elf_format] || ![check_shared_lib_support]} then {
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unsupported $testname
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} elseif {![ld_assemble $as "$asflags $srcdir/$subdir/weak-fundef.s" \
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tmpdir/weak-fundef.o]} then {
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fail $testname
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} elseif {![ld_simple_link $ld tmpdir/weak-fundef.so \
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"--shared tmpdir/weak-fundef.o"]} then {
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fail $testname
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} elseif {![is_remote host] && [which $nm] == 0} then {
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unresolved $testname
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} else {
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set exec_output [run_host_cmd "$nm" "-D tmpdir/weak-fundef.so"]
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set exec_output [prune_warnings $exec_output]
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verbose -log $exec_output
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set output_regexp ".*w undef_weak_fun.*"
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if {[regexp $output_regexp $exec_output]} then {
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pass $testname
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} else {
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fail $testname
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}
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# When linking a dynamic executable, weak undefined symbols become dynamic.
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set testname "weak undefined function symbols in dynamic exe"
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if {![ld_simple_link $ld tmpdir/weak-fundef \
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"--no-as-needed tmpdir/weak-fundef.o tmpdir/weak-fundef.so"]} then {
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fail $testname
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} else {
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set exec_output [run_host_cmd "$nm" "-D tmpdir/weak-fundef"]
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set exec_output [prune_warnings $exec_output]
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verbose -log $exec_output
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if {[regexp $output_regexp $exec_output]} then {
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pass $testname
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} else {
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fail $testname
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}
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}
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}
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