1 #!/bin/sh 2 3 # debug_msg.sh -- a test case for printing debug info for missing symbols. 4 5 # Copyright (C) 2006-2016 Free Software Foundation, Inc. 6 # Written by Ian Lance Taylor <iant (at] google.com>. 7 8 # This file is part of gold. 9 10 # This program is free software; you can redistribute it and/or modify 11 # it under the terms of the GNU General Public License as published by 12 # the Free Software Foundation; either version 3 of the License, or 13 # (at your option) any later version. 14 15 # This program is distributed in the hope that it will be useful, 16 # but WITHOUT ANY WARRANTY; without even the implied warranty of 17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 # GNU General Public License for more details. 19 20 # You should have received a copy of the GNU General Public License 21 # along with this program; if not, write to the Free Software 22 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 23 # MA 02110-1301, USA. 24 25 # This file goes with debug_msg.cc, a C++ source file constructed to 26 # have undefined references. We compile that file with debug 27 # information and then try to link it, and make sure the proper errors 28 # are displayed. The errors will be found in debug_msg.err. 29 30 check() 31 { 32 if ! grep -q "$2" "$1" 33 then 34 echo "Did not find expected error in $1:" 35 echo " $2" 36 echo "" 37 echo "Actual error output below:" 38 cat "$1" 39 exit 1 40 fi 41 } 42 43 check_missing() 44 { 45 if grep -q "$2" "$1" 46 then 47 echo "Found unexpected error in $1:" 48 echo " $2" 49 echo "" 50 echo "Actual error output below:" 51 cat "$1" 52 exit 1 53 fi 54 } 55 56 # We don't know how the compiler might order these variables, so we 57 # can't test for the actual offset from .data, hence the regexp. 58 check debug_msg.err "debug_msg.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn1()'" 59 check debug_msg.err "debug_msg.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn2()'" 60 check debug_msg.err "debug_msg.o:debug_msg.cc:badref1: error: undefined reference to 'undef_int'" 61 62 # These tests check only for the source file's file name (not the complete 63 # path) because use of -fdebug-prefix-map may change the path to the source 64 # file recorded in the objects. 65 check debug_msg.err ".*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'" 66 check debug_msg.err ".*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'" 67 check debug_msg.err ".*/debug_msg.cc:4[356]: error: undefined reference to 'undef_fn1()'" 68 check debug_msg.err ".*/debug_msg.cc:4[456]: error: undefined reference to 'undef_fn2()'" 69 if test "$DEFAULT_TARGET" != "powerpc" 70 then 71 check debug_msg.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'" 72 fi 73 74 # Check we detected the ODR (One Definition Rule) violation. 75 check debug_msg.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):" 76 check debug_msg.err "odr_violation1.cc:6" 77 check debug_msg.err "odr_violation2.cc:1[256]" 78 79 # Check we don't have ODR false positives: 80 check_missing debug_msg.err "OdrDerived::~OdrDerived()" 81 check_missing debug_msg.err "__adjust_heap" 82 # We block ODR detection for combinations of C weak and strong 83 # symbols, to allow people to use the linker to override things. We 84 # still flag it for C++ symbols since those are more likely to be 85 # unintentional. 86 check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):" 87 check_missing debug_msg.err "odr_violation1.cc:1[6-8]" 88 check_missing debug_msg.err "odr_violation2.cc:2[3-5]" 89 check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):" 90 check debug_msg.err "debug_msg.cc:6[89]" 91 check debug_msg.err "odr_violation2.cc:2[7-9]" 92 93 # Check for the same error messages when using --compressed-debug-sections. 94 if test -r debug_msg_cdebug.err 95 then 96 check debug_msg_cdebug.err "debug_msg_cdebug.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn1()'" 97 check debug_msg_cdebug.err "debug_msg_cdebug.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn2()'" 98 check debug_msg_cdebug.err "debug_msg_cdebug.o:debug_msg.cc:badref1: error: undefined reference to 'undef_int'" 99 check debug_msg_cdebug.err ".*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'" 100 check debug_msg_cdebug.err ".*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'" 101 check debug_msg_cdebug.err ".*/debug_msg.cc:4[356]: error: undefined reference to 'undef_fn1()'" 102 check debug_msg_cdebug.err ".*/debug_msg.cc:4[456]: error: undefined reference to 'undef_fn2()'" 103 if test "$DEFAULT_TARGET" != "powerpc" 104 then 105 check debug_msg_cdebug.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'" 106 fi 107 check debug_msg_cdebug.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):" 108 check debug_msg_cdebug.err "odr_violation1.cc:6" 109 check debug_msg_cdebug.err "odr_violation2.cc:1[256]" 110 check_missing debug_msg_cdebug.err "OdrDerived::~OdrDerived()" 111 check_missing debug_msg_cdebug.err "__adjust_heap" 112 check_missing debug_msg_cdebug.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):" 113 check_missing debug_msg_cdebug.err "odr_violation1.cc:1[6-8]" 114 check_missing debug_msg_cdebug.err "odr_violation2.cc:2[3-5]" 115 check debug_msg_cdebug.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):" 116 check debug_msg_cdebug.err "debug_msg.cc:6[89]" 117 check debug_msg_cdebug.err "odr_violation2.cc:2[7-9]" 118 fi 119 120 # When linking together .so's, we don't catch the line numbers, but we 121 # still find all the undefined variables, and the ODR violation. 122 check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn1()'" 123 check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn2()'" 124 check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_int'" 125 check debug_msg_so.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):" 126 check debug_msg_so.err "odr_violation1.cc:6" 127 check debug_msg_so.err "odr_violation2.cc:1[256]" 128 check_missing debug_msg_so.err "OdrDerived::~OdrDerived()" 129 check_missing debug_msg_so.err "__adjust_heap" 130 check_missing debug_msg_so.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):" 131 check_missing debug_msg_so.err "odr_violation1.cc:1[6-8]" 132 check_missing debug_msg_so.err "odr_violation2.cc:2[3-5]" 133 check debug_msg_so.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):" 134 check debug_msg_so.err "debug_msg.cc:6[89]" 135 check debug_msg_so.err "odr_violation2.cc:2[7-9]" 136 137 # These messages shouldn't need any debug info to detect: 138 check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn1()'" 139 check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn2()'" 140 check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_int'" 141 # However, we shouldn't detect or declare any ODR violation 142 check_missing debug_msg_ndebug.err "(possible ODR violation)" 143 144 exit 0 145
