1 # Test weak symbols. 2 # By Ian Lance Taylor, Cygnus Solutions. 3 # Copyright (C) 1999-2014 Free Software Foundation, Inc. 4 # 5 # This file is part of the GNU Binutils. 6 # 7 # This program is free software; you can redistribute it and/or modify 8 # it under the terms of the GNU General Public License as published by 9 # the Free Software Foundation; either version 3 of the License, or 10 # (at your option) any later version. 11 # 12 # This program is distributed in the hope that it will be useful, 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 # GNU General Public License for more details. 16 # 17 # You should have received a copy of the GNU General Public License 18 # along with this program; if not, write to the Free Software 19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 # MA 02110-1301, USA. 21 22 set testname "weak symbols" 23 24 # This test only works for ELF targets and some PE targets. 25 # It ought to work for some a.out targets, but it doesn't. 26 if {! [is_elf_format] && ! [is_pecoff_format]} { 27 unsupported $testname 28 return 29 } 30 31 # Weak symbols are broken for most PE targets. 32 if {! [istarget i?86-*-*] && ! [istarget sh-*-*]} { 33 setup_xfail *-*-pe* 34 } 35 36 # hppa64 is incredibly broken 37 setup_xfail hppa64-*-* 38 39 if {! [ld_assemble $as $srcdir/$subdir/weak1.s tmpdir/weak1.o] 40 || ! [ld_assemble $as $srcdir/$subdir/weak2.s tmpdir/weak2.o]} then { 41 # It's OK if .weak doesn't work on this target. 42 unresolved $testname 43 return 44 } 45 46 global LDFLAGS 47 set saved_LDFLAGS "$LDFLAGS" 48 if [istarget "x86_64-*-mingw*"] then { 49 set LDFLAGS "$LDFLAGS --image-base 0" 50 } 51 52 set weak_regexp_big \ 53 ".*Contents of section .text:.*1000 00001008 0000200c 12121212 34343434.*Contents of section .data:.*2000 00001008 0000200c 56565656 78787878.*" 54 55 set weak_regexp_little \ 56 ".*Contents of section .text:.*1000 08100000 0c200000 12121212 34343434.*Contents of section .data:.*2000 08100000 0c200000 56565656 78787878.*" 57 58 if {! [ld_simple_link $ld tmpdir/weak "$flags -T $srcdir/$subdir/weak.t tmpdir/weak1.o tmpdir/weak2.o"] } then { 59 fail $testname 60 } else { 61 if {![is_remote host] && [which $objdump] == 0} then { 62 unresolved $testname 63 set LDFLAGS "$saved_LDFLAGS" 64 return 65 } 66 67 set exec_output [run_host_cmd "$objdump" "-s tmpdir/weak"] 68 set exec_output [prune_warnings $exec_output] 69 verbose -log $exec_output 70 71 if {[regexp $weak_regexp_big $exec_output] \ 72 || [regexp $weak_regexp_little $exec_output] } then { 73 pass $testname 74 } else { 75 fail $testname 76 } 77 } 78 79 set LDFLAGS "$saved_LDFLAGS" 80
