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- # Expect script for common symbol tests
- # Copyright (C) 2003-2022 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
- }
- # hpux assembly is weird
- if [istarget "hppa*-*-hpux*"] {
- return
- }
- proc test_sort_common {} {
- global exec_output
- global objdump
- global srcdir
- global subdir
- global as
- global ld
-
- set test "--sort-common (descending)"
-
- verbose "Check to see that --sort-common sorts in descending alignment"
- # We do not run the sort common tests for the DLX target because we know that the linker
- # will seg-fault. The built-in DLX linker script requires that there be something in the
- # .text section and our sort-common.s file does not provide anything.
- if [istarget dlx-*-*] {
- untested "$test"
- return 0
- }
-
- if { ![ld_assemble $as $srcdir/$subdir/sort-common.s tmpdir/sort-common.o] } {
- unsupported "$test"
- return 0
- }
- if { ![ld_link $ld tmpdir/sort-common.dx "--sort-common=descending tmpdir/sort-common.o"] } {
- fail "$test (could not link)"
- return 0
- }
- send_log "$objdump --syms tmpdir/sort-common.dx | grep var | sort\n"
- set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.dx | grep var | sort"]
- # Don't know why, but the CR ports fail this test.
- setup_xfail "cr16-*-*" "crx-*-*"
- # Note: The second regexp is for targets which put small commons in a .sbss
- # section and large commons in a .bss section.
- if { ![regexp ".*var_16.*var_8.*var_4.*var_2.*var_1.*" $exec_output]
- && ![regexp ".*sbss.*var_8.*var_4.*var_2.*var_1.*bss.*var_16.*" $exec_output] } {
- fail "$test (variables in wrong order)"
- } else {
- pass $test
- }
- set test "--sort-common (ascending)"
-
- verbose "Check to see that --sort-common=ascending sorts in ascending alignment"
- if { ![ld_link $ld tmpdir/sort-common.ax "--sort-common=ascending tmpdir/sort-common.o"] } {
- fail "$test (could not link)"
- return 0
- }
- send_log "$objdump --syms tmpdir/sort-common.ax | grep var | sort\n"
- set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.ax | grep var | sort"]
- if {![regexp ".*var_1.*var_2.*var_4.*var_8.*var_16.*" $exec_output]} {
- fail "$test (variables in wrong order)"
- return 0
- }
- pass $test
- return 1
- }
- test_sort_common
- set test1 "size/alignment change of common symbols"
- set test1w1 "$test1 (warning 1)"
- set test1w2 "$test1 (warning 2)"
- set test1c1 "$test1 (change 1)"
- set test1c2 "$test1 (change 2)"
- if { ![check_compiler_available] } {
- 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/common1c.o"
- if { ! [ld_link $ld tmpdir/common.exe $options] } {
- fail $testname
- return 0
- }
- send_log "$READELF --syms tmpdir/common.exe | grep foo\n"
- set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common.exe | grep foo"]
- if {![regexp { +[0-9a-f]+. +[0-9a-f]+ OBJECT + GLOBAL +DEFAULT +[0-9]+ _?foo2} $exec_output] } {
- fail $testname
- return 0
- }
- pass $testname
- return 1
- }
- # Explicitly use "-fcommon" so that even if $CFLAGS includes
- # "-fno-common", these tests are compiled as expected.
- set options "-fcommon $NOSANITIZE_CFLAGS $NOLTO_CFLAGS"
- if [istarget nios2*-*-*] {
- append options " -G0"
- }
- if { ![ld_compile "$CC_FOR_TARGET $options" $srcdir/$subdir/common1a.c tmpdir/common1a.o]
- || ![ld_compile "$CC_FOR_TARGET $options" $srcdir/$subdir/common1b.c tmpdir/common1b.o]
- || ![ld_compile "$CC_FOR_TARGET $options -Wa,--elf-stt-common=yes" $srcdir/$subdir/common1b.c tmpdir/common1c.o] } {
- unsupported $test1
- return
- }
- set options "-r tmpdir/common1a.o tmpdir/common1b.o"
- if { [ld_link $ld tmpdir/common1.o $options] } {
- fail $test1w1
- return
- }
- # This test fails on MIPS because the backend sets type_change_ok.
- # The size change warning is suppressed. Same on hppa64.
- if {[istarget mips*-*-*] || [istarget hppa*64*-*-*]} {
- 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
- }
- set options "-r tmpdir/common1b.o tmpdir/common1a.o"
- if { [ld_link $ld tmpdir/common1.o $options] } {
- fail $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.
- #
- # Handling of -z common and -z nocommon flags is enabled only if
- # $GENERATE_SHLIB_SCRIPT is turned on in emulparams i.e. shared
- # libraries are supported.
- if ![check_shared_lib_support] {
- 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"
- run_ld_link_tests [list \
- [list \
- "Build common-3x.o" \
- "-r" "" "--elf-stt-common=no" \
- {common-1.s} {} "common-3x.o" \
- ] \
- [list \
- "Build common-3y.o" \
- "-r" "" "--elf-stt-common=yes" \
- {common-1.s} {} "common-3y.o" \
- ] \
- [list \
- "Build common-3a.o" \
- "-r tmpdir/common-3x.o tmpdir/common-3y.o" "" "" \
- {dummy.s} {{readelf {-s -W} common-3a.rd}} "common-3a.o" \
- ] \
- [list \
- "Build common-3b.o" \
- "-r tmpdir/common-3y.o tmpdir/common-3x.o" "" "" \
- {dummy.s} {{readelf {-s -W} common-3b.rd}} "common-3b.o" \
- ] \
- [list \
- "Build common-3c.o" \
- "-r -z nocommon tmpdir/common-3x.o tmpdir/common-3y.o" "" "" \
- {dummy.s} {{readelf {-s -W} common-3a.rd}} "common-3c.o" \
- ] \
- [list \
- "Build common-3d.o" \
- "-r -z common tmpdir/common-3x.o tmpdir/common-3y.o" "" "" \
- {dummy.s} {{readelf {-s -W} common-3b.rd}} "common-3b.o" \
- ] \
- [list \
- "Build common-3e.o" \
- "-r -z common tmpdir/common-3y.o tmpdir/common-3x.o" "" "" \
- {dummy.s} {{readelf {-s -W} common-3b.rd}} "common-3e.o" \
- ] \
- [list \
- "Build common-3f.o" \
- "-r -z nocommon tmpdir/common-3y.o tmpdir/common-3x.o" "" "" \
- {dummy.s} {{readelf {-s -W} common-3a.rd}} "common-3f.o" \
- ] \
- ]
- set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
- foreach t $test_list {
- # We need to strip the ".d", but can leave the dirname.
- verbose [file rootname $t]
- run_dump_test [file rootname $t]
- }
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