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julius |
# Test NOCROSSREFS in a linker script.
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# By Ian Lance Taylor, Cygnus Support.
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# Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2007
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# Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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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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#
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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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#
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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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set test1 "NOCROSSREFS 1"
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set test2 "NOCROSSREFS 2"
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set test3 "NOCROSSREFS 3"
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if { ![is_remote host] && [which $CC] == 0 } {
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untested $test1
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untested $test2
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untested $test3
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return
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}
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# Xtensa targets currently default to putting literal values in a separate
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# section and that requires linker script support, so put literals in text.
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global CFLAGS
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if [istarget xtensa*-*-*] {
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set CFLAGS "$CFLAGS -mtext-section-literals"
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}
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# If we have a compiler that doesn't use/reference dot-symbols, then
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# calls to functions reference the .opd section function descriptor.
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# This makes NOCROSSREFS rather useless on powerpc64.
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if [istarget powerpc64*-*-*] {
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set CFLAGS "$CFLAGS -mcall-aixdesc"
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}
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# Prevent the use of the MeP's small data area which references a symbol
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# called __sdabase which will not be defined by our test linker scripts.
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if [istarget mep*-*-elf] {
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set CFLAGS "-mtiny=0"
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}
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if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
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|| ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
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unresolved $test1
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unresolved $test2
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return
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}
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set flags [big_or_little_endian]
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if [istarget sh64*-*-elf] {
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# This is what gcc passes to ld by default.
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set flags "-mshelf32"
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}
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# IA64 has both ordered and unordered sections in an input file.
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setup_xfail ia64-*-*
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set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
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set exec_output [prune_warnings $exec_output]
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regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
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if [string match "" $exec_output] then {
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fail $test1
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} else {
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verbose -log "$exec_output"
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if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
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pass $test1
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} else {
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fail $test1
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}
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}
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# Check cross references within a single object.
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if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
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unresolved $test2
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return
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}
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set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
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set exec_output [prune_warnings $exec_output]
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regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
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if [string match "" $exec_output] then {
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fail $test2
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} else {
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verbose -log "$exec_output"
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if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
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pass $test2
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} else {
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fail $test2
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}
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}
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# Check cross references for ld -r
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if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
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unresolved $test3
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return
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}
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if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
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unresolved $test3
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return
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}
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set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
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set exec_output [prune_warnings $exec_output]
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regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
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if [string match "" $exec_output] then {
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pass $test3
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} else {
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verbose -log "$exec_output"
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fail $test3
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}
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