1 # Expect script for common symbol override. 2 # 3 # Copyright (C) 2011-2016 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 23 # 24 # Written by Maciej W. Rozycki <macro (at) codesourcery.com> 25 # 26 27 # This test is for ELF shared-library targets. 28 if { ![is_elf_format] || ![check_shared_lib_support] } { 29 return 30 } 31 32 # This target requires extra GAS options when building code for shared 33 # libraries. 34 set AFLAGS_PIC "" 35 if [istarget "tic6x-*-*"] { 36 append AFLAGS_PIC " -mpic -mpid=near" 37 } 38 # This target requires a non-default emulation for successful shared 39 # library/executable builds. 40 set LFLAGS "" 41 if [istarget "tic6x-*-*"] { 42 append LFLAGS " -melf32_tic6x_le" 43 } 44 45 set testname "Common symbol override test" 46 47 # Define a global symbol. 48 run_ld_link_tests [list \ 49 [list \ 50 "$testname (auxiliary shared object build)" \ 51 "$LFLAGS -shared" "" \ 52 "$AFLAGS_PIC" \ 53 { comm-data1.s } \ 54 { \ 55 { readelf -s comm-data1.sd } \ 56 } \ 57 "libcomm-data.so" \ 58 ] \ 59 ] 60 61 # Set the pointer size according to the ELF flavor. 62 set AFLAGS "" 63 if [is_elf64 "tmpdir/libcomm-data.so"] { 64 append AFLAGS " --defsym ELF64=1" 65 } 66 # HPUX targets use a different .comm syntax. 67 if [istarget "*-*-hpux*"] { 68 append AFLAGS " --defsym HPUX=1" 69 } 70 71 # bfin does not currently support copy relocs. 72 setup_xfail "bfin-*-*" 73 74 setup_xfail "arm*-*-*" "ld/13802" 75 76 # List targets here that keep copy relocs rather than eliminating 77 # them where possible in favour to dynamic relocs in the relevant 78 # loadable sections; see also the "-z nocopyreloc" command-line 79 # option and the ELIMINATE_COPY_RELOCS macro some backends use. 80 set copy_reloc [expr [istarget mn10300-*-*] || [istarget vax-*-*]] 81 82 # Verify that a common symbol has been converted to an undefined 83 # reference to the global symbol of the same name defined above 84 # and that the debug reference has been dropped. 85 run_ld_link_tests [list \ 86 [list \ 87 "$testname" \ 88 "$LFLAGS -T comm-data2.ld -Ltmpdir -lcomm-data" "" \ 89 "$AFLAGS" \ 90 { comm-data2.s } \ 91 [list \ 92 [list readelf -s \ 93 [expr { $copy_reloc ? "comm-data2r.sd" : "comm-data2.sd"}]] \ 94 [list readelf -r \ 95 [expr { $copy_reloc ? "comm-data2r.rd" : "comm-data2.rd"}]] \ 96 [list readelf "-x .debug_foo" \ 97 [expr { $copy_reloc ? "comm-data2r.xd" : "comm-data2.xd"}]]] \ 98 "comm-data" \ 99 ] \ 100 [list \ 101 "$testname 3a" \ 102 "-static" "" \ 103 "" \ 104 { comm-data3a.s comm-data3b.s } \ 105 { \ 106 { readelf -s comm-data3.sd } \ 107 } \ 108 "comm-data3a" \ 109 ] \ 110 [list \ 111 "$testname 3b" \ 112 "-static" "" \ 113 "" \ 114 { comm-data3b.s comm-data3a.s } \ 115 { \ 116 { readelf -s comm-data3.sd } \ 117 } \ 118 "comm-data3b" \ 119 ] \ 120 ] 121
