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145 lines
7.0 KiB
Bash
Executable File
145 lines
7.0 KiB
Bash
Executable File
#!/bin/sh
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# debug_msg.sh -- a test case for printing debug info for missing symbols.
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# Copyright (C) 2006-2017 Free Software Foundation, Inc.
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# Written by Ian Lance Taylor <iant@google.com>.
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# This file is part of gold.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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# This file goes with debug_msg.cc, a C++ source file constructed to
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# have undefined references. We compile that file with debug
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# information and then try to link it, and make sure the proper errors
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# are displayed. The errors will be found in debug_msg.err.
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check()
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{
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if ! grep -q "$2" "$1"
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then
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echo "Did not find expected error in $1:"
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echo " $2"
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echo ""
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echo "Actual error output below:"
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cat "$1"
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exit 1
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fi
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}
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check_missing()
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{
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if grep -q "$2" "$1"
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then
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echo "Found unexpected error in $1:"
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echo " $2"
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echo ""
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echo "Actual error output below:"
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cat "$1"
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exit 1
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fi
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}
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# We don't know how the compiler might order these variables, so we
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# can't test for the actual offset from .data, hence the regexp.
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check debug_msg.err "debug_msg.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn1()'"
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check debug_msg.err "debug_msg.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn2()'"
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check debug_msg.err "debug_msg.o:debug_msg.cc:badref1: error: undefined reference to 'undef_int'"
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# These tests check only for the source file's file name (not the complete
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# path) because use of -fdebug-prefix-map may change the path to the source
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# file recorded in the objects.
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check debug_msg.err ".*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'"
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check debug_msg.err ".*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'"
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check debug_msg.err ".*/debug_msg.cc:4[356]: error: undefined reference to 'undef_fn1()'"
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check debug_msg.err ".*/debug_msg.cc:4[456]: error: undefined reference to 'undef_fn2()'"
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if test "$DEFAULT_TARGET" != "powerpc"
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then
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check debug_msg.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"
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fi
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# Check we detected the ODR (One Definition Rule) violation.
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check debug_msg.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"
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check debug_msg.err "odr_violation1.cc:6"
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check debug_msg.err "odr_violation2.cc:1[256]"
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# Check we don't have ODR false positives:
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check_missing debug_msg.err "OdrDerived::~OdrDerived()"
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check_missing debug_msg.err "__adjust_heap"
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# We block ODR detection for combinations of C weak and strong
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# symbols, to allow people to use the linker to override things. We
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# still flag it for C++ symbols since those are more likely to be
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# unintentional.
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check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
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check_missing debug_msg.err "odr_violation1.cc:1[6-8]"
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check_missing debug_msg.err "odr_violation2.cc:2[3-5]"
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check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
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check debug_msg.err "debug_msg.cc:6[89]"
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check debug_msg.err "odr_violation2.cc:3[0-7]"
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# Check for the same error messages when using --compressed-debug-sections.
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if test -r debug_msg_cdebug.err
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then
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check debug_msg_cdebug.err "debug_msg_cdebug.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn1()'"
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check debug_msg_cdebug.err "debug_msg_cdebug.o:debug_msg.cc:fn_array: error: undefined reference to 'undef_fn2()'"
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check debug_msg_cdebug.err "debug_msg_cdebug.o:debug_msg.cc:badref1: error: undefined reference to 'undef_int'"
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check debug_msg_cdebug.err ".*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'"
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check debug_msg_cdebug.err ".*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'"
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check debug_msg_cdebug.err ".*/debug_msg.cc:4[356]: error: undefined reference to 'undef_fn1()'"
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check debug_msg_cdebug.err ".*/debug_msg.cc:4[456]: error: undefined reference to 'undef_fn2()'"
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if test "$DEFAULT_TARGET" != "powerpc"
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then
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check debug_msg_cdebug.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"
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fi
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check debug_msg_cdebug.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"
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check debug_msg_cdebug.err "odr_violation1.cc:6"
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check debug_msg_cdebug.err "odr_violation2.cc:1[256]"
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check_missing debug_msg_cdebug.err "OdrDerived::~OdrDerived()"
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check_missing debug_msg_cdebug.err "__adjust_heap"
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check_missing debug_msg_cdebug.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
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check_missing debug_msg_cdebug.err "odr_violation1.cc:1[6-8]"
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check_missing debug_msg_cdebug.err "odr_violation2.cc:2[3-5]"
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check debug_msg_cdebug.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
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check debug_msg_cdebug.err "debug_msg.cc:6[89]"
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check debug_msg_cdebug.err "odr_violation2.cc:3[0-7]"
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fi
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# When linking together .so's, we don't catch the line numbers, but we
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# still find all the undefined variables, and the ODR violation.
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check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn1()'"
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check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn2()'"
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check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_int'"
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check debug_msg_so.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"
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check debug_msg_so.err "odr_violation1.cc:6"
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check debug_msg_so.err "odr_violation2.cc:1[256]"
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check_missing debug_msg_so.err "OdrDerived::~OdrDerived()"
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check_missing debug_msg_so.err "__adjust_heap"
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check_missing debug_msg_so.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"
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check_missing debug_msg_so.err "odr_violation1.cc:1[6-8]"
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check_missing debug_msg_so.err "odr_violation2.cc:2[3-5]"
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check debug_msg_so.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"
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check debug_msg_so.err "debug_msg.cc:6[89]"
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check debug_msg_so.err "odr_violation2.cc:3[0-7]"
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# These messages shouldn't need any debug info to detect:
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check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn1()'"
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check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn2()'"
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check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_int'"
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# However, we shouldn't detect or declare any ODR violation
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check_missing debug_msg_ndebug.err "(possible ODR violation)"
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exit 0
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