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# Expect script for common symbol tests

#   Copyright 2003, 2005, 2006, 2007 Free Software Foundation, Inc.

#

# This file is part of the GNU Binutils.

#

# 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.

#

# Written by H.J. Lu (hjl@gnu.org)

#

# Make sure that ld correctly handles common symbols in ELF.

# This test can only be run on ELF platforms.

if ![is_elf_format] {

    return

}

set test1       "size/aligment change of common symbols"

set test1w1     "$test1 (warning 1)"

set test1w2     "$test1 (warning 2)"

set test1c1     "$test1 (change 1)"

set test1c2     "$test1 (change 2)"

if { ![is_remote host] && [which $CC] == 0 } {

    untested $test1w1

    untested $test1w2

    untested $test1c1

    untested $test1c2

    return

}

if { [istarget score-*-*] } {

    untested $test1w1

    untested $test1w2

    untested $test1c1

    untested $test1c2

    return

}

proc dump_common1 { testname } {

    global exec_output

    global READELF

    send_log "$READELF --syms tmpdir/common1.o | grep foo\n"

    set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1.o | grep foo"]

    if {   ![regexp "(\[        \]*)(\[0-9\]+):(\[      \]*)(\[0\]*)80(\[       \]+)4(\[        \]+)(COMMON|OBJECT)(\[  \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[     \]+)_?foo2" $exec_output]

        || ![regexp "(\[        \]*)(\[0-9\]+):(\[      \]*)(\[0-9\]+)(\[       \]+)21(\[       \]+)OBJECT(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(\[0-9\]+)(\[       \]+)_?foo1" $exec_output] } {

        verbose $exec_output

        fail $testname

        return 0

    }

    return 1

}

proc stt_common_test { options testname } {

    global exec_output

    global READELF

    global ld

    set options "$options tmpdir/common1a.o"

    if { ! [ld_simple_link $ld tmpdir/common.exe $options] } {

      unresolved $testname

      return 0

    }

    send_log "$READELF --syms tmpdir/common.exe | grep foo\n"

    set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common.exe | grep foo"]

    if {![regexp "(\[   \]*)(\[0-9\]+):(\[      \]*)(\[0-9\]+)(\[       \]+)(\[0-9\]+)(\[       \]+)COMMON(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(\[0-9\]+)(\[       \]+)_?foo2" $exec_output] } {

        fail $testname

        return 0

    }

    pass $testname

    return 1

}

# Check to see if the assembler is generating symbols with the STT_COMMON type.

proc assembler_generates_commons {} {

    global exec_output

    global READELF

    verbose "Check to see if STT_COMMON symbols are being generated:"

    set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1a.o | grep foo"]

    if { ![regexp "(\[  \]*)(\[0-9\]+):(\[      \]*)(\[0\]*)80(\[       \]+).(\[        \]+)COMMON(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[     \]+)_?foo2" $exec_output] } {

        verbose "STT_COMMON not generated"

        return 0

    }

    verbose "STT_COMMON's are generated"

    return 1

}

if {   ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/common1a.c tmpdir/common1a.o]

    || ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/common1b.c tmpdir/common1b.o] } {

    unresolved $test1

    return

}

global ld

global link_output

if { [ld_simple_link $ld tmpdir/common1.o "-r tmpdir/common1a.o tmpdir/common1b.o"] } {

    unresolved $test1w1

    return

}

# This test fails on MIPS because the backend sets type_change_ok.

# The size change warning is suppressed.

if {[istarget mips*-*-*]} {

    if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {

        fail $test1w1

    } else {

        pass $test1w1

    }

} else {

    if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output]

         || ![regexp "Warning: size of symbol \`_?foo1\' changed from 2 in tmpdir/common1a.o to 21 in tmpdir/common1b.o" $link_output] } {

        fail $test1w1

    } else {

        pass $test1w1

    }

}

if { [dump_common1 $test1c1] } {

    pass $test1c1

}

if { [ld_simple_link $ld tmpdir/common1.o "-r tmpdir/common1b.o tmpdir/common1a.o"] } {

    unresolved $test1w2

    return

}

if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {

    fail $test1w2

} else {

    pass $test1w2

}

if { [dump_common1 $test1c2] } {

    pass $test1c2

}

#

# The following tests are for when we are generating STT_COMMON symbols only.

#

if { ![assembler_generates_commons] } {

    return

}

stt_common_test "-static -e 0" "static link of common symbols"

stt_common_test "-shared"      "shared link of common symbols"

stt_common_test "-pie"         "position independent link of common symbols"