gold/testsuite/debug_msg.sh

   1 #!/bin/sh
   2
   3 # debug_msg.sh -- a test case for printing debug info for missing symbols.
   4
   5 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
   6 # Written by Ian Lance Taylor <iant@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:3[0-7]"
  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:3[0-7]"
 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:3[0-7]"
 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