1#!/bin/sh
2
3# debug_msg.sh -- a test case for printing debug info for missing symbols.
4
5# Copyright (C) 2006-2014 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
30check()
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
43check_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 "$1"
52	exit 1
53    fi
54}
55
56# We don't know how the compiler might order these variables, so we
57# can't test for the actual offset from .data, hence the regexp.
58check debug_msg.err "debug_msg.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn1()'"
59check debug_msg.err "debug_msg.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn2()'"
60check debug_msg.err "debug_msg.o:debug_msg.cc:badref1: error: undefined reference to 'undef_int'"
61
62# These tests check only for the source file's file name (not the complete
63# path) because use of -fdebug-prefix-map may change the path to the source
64# file recorded in the objects.
65check debug_msg.err ".*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'"
66check debug_msg.err ".*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'"
67check debug_msg.err ".*/debug_msg.cc:43: error: undefined reference to 'undef_fn1()'"
68check debug_msg.err ".*/debug_msg.cc:44: error: undefined reference to 'undef_fn2()'"
69if test "$DEFAULT_TARGET" != "powerpc"
70then
71  check debug_msg.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"
72fi
73
74# Check we detected the ODR (One Definition Rule) violation.
75check debug_msg.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"
76check debug_msg.err "odr_violation1.cc:6"
77check debug_msg.err "odr_violation2.cc:1[25]"
78
79# Check we don't have ODR false positives:
80check_missing debug_msg.err "OdrDerived::~OdrDerived()"
81check_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.
86check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
87check_missing debug_msg.err "odr_violation1.cc:16"
88check_missing debug_msg.err "odr_violation2.cc:23"
89check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
90check debug_msg.err "debug_msg.cc:68"
91check debug_msg.err "odr_violation2.cc:2[78]"
92
93# Check for the same error messages when using --compressed-debug-sections.
94if test -r debug_msg_cdebug.err
95then
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:43: error: undefined reference to 'undef_fn1()'"
102  check debug_msg_cdebug.err ".*/debug_msg.cc:44: 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[25]"
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:16"
114  check_missing debug_msg_cdebug.err "odr_violation2.cc:23"
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:68"
117  check debug_msg_cdebug.err "odr_violation2.cc:2[78]"
118fi
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.
122check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn1()'"
123check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn2()'"
124check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_int'"
125check debug_msg_so.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"
126check debug_msg_so.err "odr_violation1.cc:6"
127check debug_msg_so.err "odr_violation2.cc:1[25]"
128check_missing debug_msg_so.err "OdrDerived::~OdrDerived()"
129check_missing debug_msg_so.err "__adjust_heap"
130check_missing debug_msg_so.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
131check_missing debug_msg_so.err "odr_violation1.cc:16"
132check_missing debug_msg_so.err "odr_violation2.cc:23"
133check debug_msg_so.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
134check debug_msg_so.err "debug_msg.cc:68"
135check debug_msg_so.err "odr_violation2.cc:2[78]"
136
137# These messages shouldn't need any debug info to detect:
138check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn1()'"
139check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn2()'"
140check 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
142check_missing debug_msg_ndebug.err "(possible ODR violation)"
143
144exit 0
145