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# Test handling of weak undefined symbols
# Copyright 2001, 2004
# Free Software Foundation, Inc.
#
# 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 2 of the License, or
# (at your option) any later version.
#
# This program 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
set testname "weak undefined symbols"
# This test only works for ELF targets. It ought to work for some
# a.out targets, but it doesn't.
if { ![istarget *-*-sysv4*] \
&& ![istarget *-*-unixware*] \
&& ![istarget *-*-elf*] \
&& ![istarget *-*-eabi*] \
&& ![istarget hppa*64*-*-hpux*] \
&& ![istarget *-*-linux*] \
&& ![istarget *-*-irix5*] \
&& ![istarget *-*-irix6*] \
&& ![is_pecoff_format] \
&& ![istarget *-*-solaris2*] } then {
unsupported $testname
return
}
if { [istarget *-*-linux*aout*] \
|| [istarget *-*-linux*oldld*] } {
unsupported $testname
return
}
# Weak symbols are broken for non-i386 PE targets.
if {! [istarget i?86-*-*]} {
setup_xfail *-*-pe*
}
if {! [ld_assemble $as $srcdir/$subdir/weak-undef.s tmpdir/weak-undef.o]} then {
# It's OK if .weak doesn't work on this target.
unresolved $testname
return
}
# The linker should accept references to undefined weaks without error,
# and resolve them to zero.
set output_regexp \
".*Contents of section .data:.*0000 00000000 11111111.*"
if {! [ld_simple_link $ld tmpdir/weak-undef "$flags tmpdir/weak-undef.o -T $srcdir/$subdir/weak-undef.t"] } then {
fail $testname
} else {
if {[which $objdump] == 0} then {
unresolved $testname
return
}
verbose -log "$objdump -s tmpdir/weak-undef"
catch "exec $objdump -s tmpdir/weak-undef" exec_output
set exec_output [prune_warnings $exec_output]
verbose -log $exec_output
if {[regexp $output_regexp $exec_output]} then {
pass $testname
} else {
fail $testname
}
}
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