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#!/bin/sh

# debug_msg.sh -- a test case for printing debug info for missing symbols.

# Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.

# Written by Ian Lance Taylor <iant@google.com>.

# This file is part of gold.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

# MA 02110-1301, USA.

# This file goes with debug_msg.cc, a C++ source file constructed to

# have undefined references.  We compile that file with debug

# information and then try to link it, and make sure the proper errors

# are displayed.  The errors will be found in debug_msg.err.

check()

{

    if ! grep -q "$2" "$1"

    then

        echo "Did not find expected error in $1:"

        echo "   $2"

        echo ""

        echo "Actual error output below:"

        cat "$1"

        exit 1

    fi

}

check_missing()

{

    if grep -q "$2" "$1"

    then

        echo "Found unexpected error in $1:"

        echo "   $2"

        echo ""

        echo "Actual error output below:"

        cat "$1"

        exit 1

    fi

}

# We don't know how the compiler might order these variables, so we

# can't test for the actual offset from .data, hence the regexp.

check debug_msg.err "debug_msg.o:debug_msg.cc:function fn_array: error: undefined reference to 'undef_fn1()'"

check debug_msg.err "debug_msg.o:debug_msg.cc:function fn_array: error: undefined reference to 'undef_fn2()'"

check debug_msg.err "debug_msg.o:debug_msg.cc:function badref1: error: undefined reference to 'undef_int'"

# These tests check only for the source file's file name (not the complete

# path) because use of -fdebug-prefix-map may change the path to the source

# file recorded in the objects.

check debug_msg.err ".*/debug_msg.cc:50: error: undefined reference to 'undef_fn1()'"

check debug_msg.err ".*/debug_msg.cc:55: error: undefined reference to 'undef_fn2()'"

check debug_msg.err ".*/debug_msg.cc:43: error: undefined reference to 'undef_fn1()'"

check debug_msg.err ".*/debug_msg.cc:44: error: undefined reference to 'undef_fn2()'"

check debug_msg.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"

check debug_msg.err ".*/debug_msg.cc:43: error: undefined reference to 'undef_fn1()'"

check debug_msg.err ".*/debug_msg.cc:44: error: undefined reference to 'undef_fn2()'"

check debug_msg.err ".*/debug_msg.cc:.*: error: undefined reference to 'undef_int'"

# Check we detected the ODR (One Definition Rule) violation.

check debug_msg.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"

check debug_msg.err "odr_violation1.cc:6"

check debug_msg.err "odr_violation2.cc:12"

# Check we don't have ODR false positives:

check_missing debug_msg.err "OdrDerived::~OdrDerived()"

check_missing debug_msg.err "__adjust_heap"

# We block ODR detection for combinations of C weak and strong

# symbols, to allow people to use the linker to override things.  We

# still flag it for C++ symbols since those are more likely to be

# unintentional.

check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"

check_missing debug_msg.err "odr_violation1.cc:16"

check_missing debug_msg.err "odr_violation2.cc:23"

check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"

check debug_msg.err "debug_msg.cc:68"

check debug_msg.err "odr_violation2.cc:27"

# When linking together .so's, we don't catch the line numbers, but we

# still find all the undefined variables, and the ODR violation.

check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn1()'"

check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_fn2()'"

check debug_msg_so.err "debug_msg.so: error: undefined reference to 'undef_int'"

check debug_msg_so.err ": symbol 'Ordering::operator()(int, int)' defined in multiple places (possible ODR violation):"

check debug_msg_so.err "odr_violation1.cc:6"

check debug_msg_so.err "odr_violation2.cc:12"

check_missing debug_msg.err "OdrDerived::~OdrDerived()"

check_missing debug_msg.err "__adjust_heap"

check_missing debug_msg.err ": symbol 'OverriddenCFunction' defined in multiple places (possible ODR violation):"

check_missing debug_msg.err "odr_violation1.cc:16"

check_missing debug_msg.err "odr_violation2.cc:23"

check debug_msg.err ": symbol 'SometimesInlineFunction(int)' defined in multiple places (possible ODR violation):"

check debug_msg.err "debug_msg.cc:68"

check debug_msg.err "odr_violation2.cc:27"

# These messages shouldn't need any debug info to detect:

check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn1()'"

check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_fn2()'"

check debug_msg_ndebug.err "debug_msg_ndebug.so: error: undefined reference to 'undef_int'"

# However, we shouldn't detect or declare any ODR violation

check_missing debug_msg_ndebug.err "(possible ODR violation)"

exit 0