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 2006, 2007, 2008 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: in function fn_array:debug_msg.cc(.data+0x[0-9a-fA-F]*): error: undefined reference to 'undef_fn1()'"
  59 check debug_msg.err "debug_msg.o: in function fn_array:debug_msg.cc(.data+0x[0-9a-fA-F]*): error: undefined reference to 'undef_fn2()'"
  60 check debug_msg.err "debug_msg.o: in function badref1:debug_msg.cc(.data+0x[0-9a-fA-F]*): 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.o: in function Base::virtfn():.*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'"
  66 check debug_msg.err "debug_msg.o: in function Derived::virtfn():.*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'"
  67 check debug_msg.err "debug_msg.o: in function int testfn<int>(int):.*/debug_msg.cc:43: error: undefined reference to 'undef_fn1()'"
  68 check debug_msg.err "debug_msg.o: in function int testfn<int>(int):.*/debug_msg.cc:44: error: undefined reference to 'undef_fn2()'"
  69 check debug_msg.err "debug_msg.o: in function int testfn<int>(int):.*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"
  70 check debug_msg.err "debug_msg.o: in function int testfn<double>(double):.*/debug_msg.cc:43: error: undefined reference to 'undef_fn1()'"
  71 check debug_msg.err "debug_msg.o: in function int testfn<double>(double):.*/debug_msg.cc:44: error: undefined reference to 'undef_fn2()'"
  72 check debug_msg.err "debug_msg.o: in function int testfn<double>(double):.*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"
  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:5"
  77 check debug_msg.err "odr_violation2.cc:5"
  78 # We block ODR detection for combinations of C weak and strong
  79 # symbols, to allow people to use the linker to override things.  We
  80 # still flag it for C++ symbols since those are more likely to be
  81 # unintentional.
  82 check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
  83 check_missing debug_msg.err "odr_violation1.cc:15"
  84 check_missing debug_msg.err "odr_violation2.cc:17"
  85 check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
  86 check debug_msg.err "debug_msg.cc:64"
  87 check debug_msg.err "odr_violation2.cc:21"
  88
  89 # When linking together .so's, we don't catch the line numbers, but we
  90 # still find all the undefined variables, and the ODR violation.
  91 check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn1()'"
  92 check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn2()'"
  93 check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_int'"
  94 check debug_msg_so.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"
  95 check debug_msg_so.err "odr_violation1.cc:5"
  96 check debug_msg_so.err "odr_violation2.cc:5"
  97 check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
  98 check_missing debug_msg.err "odr_violation1.cc:15"
  99 check_missing debug_msg.err "odr_violation2.cc:17"
 100 check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
 101 check debug_msg.err "debug_msg.cc:64"
 102 check debug_msg.err "odr_violation2.cc:21"
 103
 104 # These messages shouldn't need any debug info to detect:
 105 check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn1()'"
 106 check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn2()'"
 107 check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_int'"
 108 # However, we shouldn't detect or declare any ODR violation
 109 check_missing debug_msg_ndebug.err "(possible ODR violation)"
 110
 111 exit 0