old-cross-binutils/binutils/testsuite/binutils-all/objcopy.exp
Andrew Burgess d3e5f6c8f1 objcopy/strip: Add option --remove-relocations=SECTIONPATTERN
The objcopy and strip tools make use of the bfd library to manipulate
the state of the input file (to produce an output file).  Within the
input file (for ELF at least), relocations are held within a section,
and so, if the user wanted to remove the relocations, but keep the
section to which the relocations would have been applied, it is tempting
to think that specifying the name of a relocation section to objcopy's
--remove-section option might do what you want, for example:

   objcopy --remove-section=.rela.text input.elf output.elf

However, this does not work.  The reason is that when the input file is
loaded, relocations are not managed as sections, but are, instead,
loaded as data associated with the section to which the relocations
would be applied.  In our example above the relocations in '.rela.text'
are held as data on the section '.text' once 'input.elf' is loaded.

One task that objcopy and strip do is copy the relocations from the
input file to the output file if the section is also being copied from
the input file to the output file.

This commit adds a new command line option for objcopy and strip,
--remove-relocations, which can be used to remove the relocations, while
keeping the section that the relocations would have been applied to, for
example:

    objcopy --remove-relocations=.text input.elf output.elf

in this case the section '.text' will appear in both 'input.elf' and
'output.elf', but any relocations in 'input.elf' that apply to '.text'
will not be present in 'output.elf'.

I have also added a special case to the handling of --remove-section
that spots if a user tries to remove a relocation section (currently
this is done by spotting the '.rela.' or '.rel.' prefix) and forwards
the request to --remove-relocations.

As with --remove-section and --only-section the --remove-relocations
option supports the '!' prefix on the section-patterns it takes to allow
for sections to be specifically not matched.

There are tests for all the new functionality.

binutils/ChangeLog:

	* doc/binutils.texi (objcopy): Document 'remove-relocations'.
	(strip): Likewise.
	* objcopy.c (SECTION_CONTEXT_REMOVE_RELOCS): Define.
	(enum command_line_switch): Add 'OPTION_REMOVE_RELOCS'.
	(struct option strip_options): Add 'remove-relocations'.
	(struct option copy_options): Likewise.
	(copy_usage): Likewise.
	(strip_usage): Likewise.
	(handle_remove_relocations_option): New function.
	(discard_relocations): New function.
	(handle_remove_section_option): New function.
	(copy_relocations_in_section): Use discard_relocations.
	(strip_main): Use handle_remove_section_option for
	'remove-section', and handle 'remove-relocations' option.
	(copy_main): Likewise.
	* testsuite/binutils-all/objcopy.exp: Run new tests.
	* testsuite/binutils-all/remove-relocs-01.d: New file.
	* testsuite/binutils-all/remove-relocs-01.s: New file.
	* testsuite/binutils-all/remove-relocs-02.d: New file.
	* testsuite/binutils-all/remove-relocs-03.d: New file.
	* testsuite/binutils-all/remove-relocs-04.d: New file.
	* testsuite/binutils-all/remove-relocs-05.d: New file.
	* testsuite/binutils-all/remove-relocs-06.d: New file.
2016-07-14 11:34:10 +01:00

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# Copyright (C) 1994-2016 Free Software Foundation, Inc.
# 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.
# Please email any bugs, comments, and/or additions to this file to:
# bug-dejagnu@prep.ai.mit.edu
# Written by Ian Lance Taylor <ian@cygnus.com>
if ![is_remote host] {
if {[which $OBJCOPY] == 0} then {
perror "$OBJCOPY does not exist"
return
}
}
send_user "Version [binutil_version $OBJCOPY]"
if ![is_remote host] {
set tempfile tmpdir/bintest.o
set copyfile tmpdir/copy
} else {
set tempfile [remote_download host tmpdir/bintest.o]
set copyfile copy
}
# Test that objcopy does not modify a file when copying it.
proc objcopy_test {testname srcfile} {
global OBJCOPY
global OBJCOPYFLAGS
global srcdir
global subdir
global tempfile
global copyfile
if {![binutils_assemble $srcdir/$subdir/${srcfile} $tempfile]} then {
perror "unresolved $testname"
unresolved "objcopy ($testname)"
remote_file host delete $tempfile
return
}
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS $tempfile ${copyfile}.o"]
if ![string equal "" $got] then {
fail "objcopy ($testname)"
} else {
send_log "cmp $tempfile ${copyfile}.o\n"
verbose "cmp $tempfile ${copyfile}.o"
if [is_remote host] {
set src1 tmpdir/bintest.o
set src2 tmpdir/copy.o
remote_upload host $tempfile $src1
remote_upload host ${copyfile}.o $src2
} else {
set src1 ${tempfile}
set src2 ${copyfile}.o
}
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
# On some systems the result of objcopy will not be identical.
# Usually this is just because gas isn't using bfd to write the
# files in the first place, and may order things a little
# differently. Those systems should use setup_xfail here.
setup_xfail "h8300-*-coff"
setup_xfail "h8500-*-rtems*" "h8500-*-coff"
setup_xfail "hppa*-*-*"
setup_xfail "i960-*"
setup_xfail "m68*-*-*coff" "m68*-*-hpux*" "m68*-*-lynxos*"
setup_xfail "m68*-*-sysv*" "m68*-apple-aux*"
setup_xfail "m8*-*"
setup_xfail "sh-*-coff*"
setup_xfail "tic80-*-*" "w65-*"
clear_xfail "hppa*64*-*-hpux*" "hppa*-*-linux*" "hppa*-*-lites*"
clear_xfail "hppa*-*-*n*bsd*" "hppa*-*-rtems*" "*-*-*elf*"
clear_xfail "m68*-*-sysv4*"
if [string equal "" $exec_output] then {
pass "objcopy ($testname)"
} else {
send_log "$exec_output\n"
verbose "$exec_output" 1
# On OSF/1, this succeeds with gas and fails with /bin/as.
setup_xfail "alpha*-*-osf*"
fail "objcopy ($testname)"
}
}
}
objcopy_test "simple copy" bintest.s
if { [file exists $tempfile] } {
# Test reversing bytes in a section.
set reversed ${tempfile}-reversed
set sect_names [get_standard_section_names]
if { $sect_names != "" } {
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -j [lindex $sect_names 1] --reverse-bytes=4 $tempfile $reversed"]
} else {
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -j .data --reverse-bytes=4 $tempfile $reversed"]
}
if ![string equal "" $got] then {
fail "objcopy --reverse-bytes"
} else {
if [is_remote host] {
remote_upload host ${reversed} tmpdir/copy-reversed.o
set reversed tmpdir/copy-reversed.o
}
set origdata [binutils_run $OBJDUMP "$OBJDUMPFLAGS -s -j .data $tempfile"]
set revdata [binutils_run $OBJDUMP "$OBJDUMPFLAGS -s -j .data $reversed"]
set want "^ \[0-9\]+ (\[0-9\]+)"
set found_orig [regexp -lineanchor $want $origdata -> origdata]
set found_rev [regexp -lineanchor $want $revdata -> revdata]
if {$found_orig == 0 || $found_rev == 0} then {
# som doesn't have a .data section
setup_xfail "hppa*-*-hpux*"
clear_xfail "hppa*64*-*-hpux*"
fail "objcopy --reverse-bytes"
} else {
scan $origdata "%2x%2x%2x%2x" b1 b2 b3 b4
scan $revdata "%2x%2x%2x%2x" c4 c3 c2 c1
if {$b1 == $c1 && $b2 == $c2 && $b3 == $c3 && $b4 == $c4} then {
pass "objcopy --reverse-bytes"
} else {
fail "objcopy --reverse-bytes"
}
}
}
}
# Test interleaved copy of multiple byte width
set sequence_file sequence_file
set file [open ${sequence_file} w]
puts ${file} "12345678"
close ${file}
if [is_remote host] {
remote_upload host ${sequence_file} tmpdir/sequence_file
set sequence_file tmpdir/sequence_file
}
set got [binutils_run $OBJCOPY "-I binary -i 4 -b 0 --interleave-width 2 ${sequence_file} ${copyfile}"]
if ![string equal "" $got] then {
fail "objcopy -i --interleave-width"
} else {
if [is_remote host] {
remote_upload host ${copyfile} tmpdir/interleave_output
set interleave_output tmpdir/interleave_output
} else {
set interleave_output ${copyfile}
}
set file [open ${interleave_output} r]
gets $file line
send_log "$line\n"
verbose $line
if ![string equal "1256" $line] then {
fail "objcopy -i --interleave-width"
}
pass "objcopy -i --interleave-width"
close $file
}
# Test generating S records.
if { [file exists $tempfile] } {
# We make the srec filename 8.3 compatible. Note that the header string
# matched against depends on the name of the file. Ugh.
if [is_remote host] {
set srecfile copy.sre
set header_string S00B0000636F70792E737265C1
} else {
set srecfile ${copyfile}.srec
set header_string S0130000746D706469722F636F70792E7372656397
}
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -O srec $tempfile ${srecfile}"]
if ![string equal "" $got] then {
fail "objcopy -O srec"
} else {
if [is_remote host] {
remote_upload host ${srecfile} tmpdir/copy.srec
set srecfile tmpdir/copy.srec
}
set file [open ${srecfile} r]
# The first S record is fixed by the file name we are using.
gets $file line
send_log "$line\n"
verbose $line
if ![regexp "$header_string.*" $line] {
send_log "bad header\n"
fail "objcopy -O srec"
} else {
while {[gets $file line] != -1 \
&& [regexp "^S\[123\]\[0-9a-fA-F\]+\[\r\n\]*$" $line]} {
send_log "$line\n"
verbose $line
set line "**EOF**"
}
send_log "$line\n"
verbose $line
if ![regexp "^S\[789\]\[0-9a-fA-F\]+\[\r\n\]*$" $line] then {
send_log "bad trailer\n"
fail "objcopy -O srec"
} else {
if {[gets $file line] != -1} then {
send_log "garbage at end\n"
send_log "$line\n"
verbose $line
fail "objcopy -O srec"
} else {
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -f ${srecfile}"]
if ![regexp "file format srec" $got] then {
send_log "objdump failed\n"
fail "objcopy -O srec"
} else {
pass "objcopy -O srec"
}
}
}
}
close $file
}
}
# Test setting and adjusting the start address. We only test this
# while generating S records, because we may not be able to set the
# start address for other object file formats, and the S record case
# is the only useful one anyhow.
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -f $tempfile"]
if ![regexp "start address (\[0-9a-fA-FxX\]+)" $got all origstart] then {
perror "objdump can not recognize bintest.o"
set origstart ""
} else {
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -O srec --set-start 0x7654 $tempfile ${copyfile}.srec"]
if ![string equal "" $got] then {
fail "objcopy --set-start"
} else {
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -f ${copyfile}.srec"]
if ![regexp "file format srec.*start address (\[0-9a-fA-FxX\]+)" $got all srecstart] then {
fail "objcopy --set-start"
} else {
if {$srecstart != 0x7654} then {
send_log "$srecstart != 0x7654\n"
fail "objcopy --set-start"
} else {
pass "objcopy --set-start"
}
}
}
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -O srec --adjust-start 0x123 $tempfile ${copyfile}.srec"]
if ![string equal "" $got] then {
fail "objcopy --adjust-start"
} else {
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -f ${copyfile}.srec"]
if ![regexp "file format srec.*start address (\[0-9a-fA-FxX\]+)" $got all srecstart] then {
fail "objcopy --adjust-start"
} else {
if {$srecstart != $origstart + 0x123} then {
send_log "$srecstart != $origstart + 0x123\n"
fail "objcopy --adjust-start"
} else {
pass "objcopy --adjust-start"
}
}
}
}
# Test adjusting the overall VMA, and adjusting the VMA of a
# particular section. We again only test this when generating S
# records.
set low ""
set lowname ""
set headers [binutils_run $OBJDUMP "$OBJDUMPFLAGS -h $tempfile"]
set headers_regexp "\[ 0-9\]+(\[^ \]+)\[ \]*(\[0-9a-fA-F\]+)\[ \]+\[0-9a-fA-F\]+\[ \]+(\[0-9a-fA-F\]+)\[ \]+\[0-9a-fA-F\]+\[ \]+2\[*\]\[*\]\[0-9\]+(.*)"
set got $headers
while {[regexp $headers_regexp $got all name size vma rest]} {
set vma 0x$vma
set size 0x$size
if {$size != 0} {
if {$low == "" || $vma < $low} {
set low $vma
set lowname $name
}
}
set got $rest
}
if {$low == "" || $origstart == ""} then {
perror "objdump can not recognize bintest.o"
} else {
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -O srec --adjust-vma 0x123 $tempfile ${copyfile}.srec"]
if ![string equal "" $got] then {
fail "objcopy --adjust-vma"
} else {
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -fh ${copyfile}.srec"]
set want "file format srec.*start address\[ \]*(\[0-9a-fA-FxX\]+).*sec1\[ \]+\[0-9a-fA-F\]+\[ \]+(\[0-9a-fA-F\]+)"
if ![regexp $want $got all start vma] then {
fail "objcopy --adjust-vma"
} else {
set vma 0x$vma
if {$vma != $low + 0x123} then {
send_log "$vma != $low + 0x123\n"
fail "objcopy --adjust-vma"
} else {
if {$start != $origstart + 0x123} then {
send_log "$start != $origstart + 0x123\n"
fail "objcopy --adjust-vma"
} else {
pass "objcopy --adjust-vma"
}
}
}
}
set arg ""
set got $headers
while {[regexp $headers_regexp $got all name size vma rest]} {
set vma 0x$vma
if {$vma == $low} then {
set arg "$arg --adjust-section-vma $name+4"
}
set got $rest
}
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -O srec $arg $tempfile ${copyfile}.srec"]
if ![string equal "" $got] then {
fail "objcopy --adjust-section-vma +"
} else {
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -h ${copyfile}.srec"]
set want "file format srec.*sec1\[ \]+\[0-9a-fA-F\]+\[ \]+(\[0-9a-fA-F\]+)"
if ![regexp $want $got all vma] then {
fail "objcopy --adjust-section-vma +"
} else {
set vma 0x$vma
if {$vma != $low + 4} then {
send_log "$vma != $low + 4\n"
fail "objcopy --adjust-section-vma +"
} else {
pass "objcopy --adjust-section-vma +"
}
}
}
regsub -all "\\+4" $arg "=[expr $low + 4]" argeq
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS -O srec $argeq $tempfile ${copyfile}.srec"]
if ![string equal "" $got] then {
fail "objcopy --adjust-section-vma ="
} else {
set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -h ${copyfile}.srec"]
set want "file format srec.*sec1\[ \]+\[0-9a-fA-F\]+\[ \]+(\[0-9a-fA-F\]+)"
if ![regexp $want $got all vma] then {
fail "objcopy --adjust-section-vma ="
} else {
set vma 0x$vma
if {$vma != $low + 4} then {
send_log "$vma != $low + 4\n"
fail "objcopy --adjust-section-vma ="
} else {
pass "objcopy --adjust-section-vma ="
}
}
}
}
# Test stripping an object.
proc strip_test { } {
global AR
global CC
global STRIP
global STRIPFLAGS
global NM
global NMFLAGS
global srcdir
global subdir
global READELF
set test "strip"
if { [target_compile $srcdir/$subdir/testprog.c tmpdir/testprog.o object debug] != "" } {
untested $test
return
}
set osabi_fail "false"
if [is_elf_format] {
verbose -log "$READELF -a tmpdir/testprog.o > tmpdir/osabi.in"
set exec_output [remote_exec host "$READELF -h tmpdir/testprog.o" "" "/dev/null" "tmpdir/osabi.in"]
if { [lindex $exec_output 0] != 0 } then {
unresolved "$test preserving OS/ABI"
set osabi_fail "true"
} else {
verbose -log "grep OS/ABI tmpdir/osabi.in"
catch "exec grep OS/ABI tmpdir/osabi.in" osabi_in
}
}
if [is_remote host] {
set archive libstrip.a
set objfile [remote_download host tmpdir/testprog.o]
remote_file host delete $archive
} else {
set archive tmpdir/libstrip.a
set objfile tmpdir/testprog.o
}
remote_file build delete tmpdir/libstrip.a
set exec_output [binutils_run $AR "rc $archive ${objfile}"]
if ![string equal "" $exec_output] {
fail $test
unresolved "$test preserving OS/ABI"
return
}
set exec_output [binutils_run $STRIP "-g $archive"]
if ![string equal "" $exec_output] {
fail $test
unresolved "$test preserving OS/ABI"
return
}
set exec_output [binutils_run $STRIP "$STRIPFLAGS $archive"]
if ![string equal "" $exec_output] {
fail $test
unresolved "$test preserving OS/ABI"
return
}
if { $osabi_fail != "true" && [is_elf_format] } {
verbose -log "$READELF -a tmpdir/testprog.o > tmpdir/osabi.out"
set exec_output [remote_exec host "$READELF -h tmpdir/testprog.o" "" "/dev/null" "tmpdir/osabi.out"]
if { [lindex $exec_output 0] != 0 } then {
unresolved "$test preserving OS/ABI"
} else {
verbose -log "grep OS/ABI tmpdir/osabi.out"
catch "exec grep OS/ABI tmpdir/osabi.out" osabi_out
if { "$osabi_in" == "$osabi_out" } {
pass "$test preserving OS/ABI"
} else {
fail "$test preserving OS/ABI"
}
}
}
if { [target_compile $srcdir/$subdir/testprog.c tmpdir/testprog.o object debug] != "" } {
untested $test
return
}
if [is_remote host] {
set objfile [remote_download host tmpdir/testprog.o]
} else {
set objfile tmpdir/testprog.o
}
set exec_output [binutils_run $STRIP "$STRIPFLAGS $objfile"]
if ![string equal "" $exec_output] {
fail $test
return
}
set exec_output [binutils_run $NM "-a $NMFLAGS $objfile"]
if ![string match "*: no symbols*" $exec_output] {
fail $test
return
}
pass $test
}
strip_test
# Test stripping an object file with saving a symbol
proc strip_test_with_saving_a_symbol { } {
global CC
global STRIP
global STRIPFLAGS
global NM
global NMFLAGS
global srcdir
global subdir
set test "strip with saving a symbol"
if { [target_compile $srcdir/$subdir/testprog.c tmpdir/testprog.o object debug] != "" } {
untested $test
return
}
if [is_remote host] {
set objfile [remote_download host tmpdir/testprog.o]
} else {
set objfile tmpdir/testprog.o
}
set exec_output [binutils_run $STRIP "$STRIPFLAGS -K main -K _main $objfile"]
if ![string equal "" $exec_output] {
fail $test
return
}
set exec_output [binutils_run $NM "$NMFLAGS $objfile"]
if {![regexp {^([0-9a-fA-F]+)?[ ]+[TD] main} $exec_output] \
&& ![regexp {^([0-9a-fA-F]+)?[ ]+T _main} $exec_output]} {
fail $test
return
}
pass $test
}
strip_test_with_saving_a_symbol
# Build a final executable.
if { [istarget *-*-cygwin] || [istarget *-*-mingw*] } {
set test_prog "testprog.exe"
} else {
set test_prog "testprog"
}
proc copy_setup { } {
global srcdir
global subdir
global gcc_gas_flag
global test_prog
global host_triplet
set res [build_wrapper testglue.o]
set flags { debug }
if { [istarget *-*-uclinux*] && ![istarget tic6x-*-*] } {
return 1
}
if { $res != "" } {
lappend flags "additional_flags=[lindex $res 1]"
set add_libs "testglue.o"
} else {
set add_libs ""
}
if { [istarget *-*-linux*]
|| [istarget *-*-gnu*] } {
foreach i $gcc_gas_flag {
set flags "additional_flags=$i $flags"
}
}
if { [target_compile "$srcdir/$subdir/testprog.c $add_libs" tmpdir/$test_prog executable $flags] != "" } {
return 2
}
set result [remote_load target tmpdir/$test_prog]
set status [lindex $result 0]
if { $status != "pass" } {
send_log "cannot run executable, status = ${status} on ${host_triplet}\n"
return 3
}
return 0
}
# Test copying an executable.
proc copy_executable { prog flags test1 test2 } {
global test_prog
if [is_remote host] {
set testfile [remote_download host tmpdir/$test_prog]
set testcopy copyprog
} else {
set testfile tmpdir/$test_prog
set testcopy tmpdir/copyprog
}
remote_file host delete $testcopy
set exec_output [binutils_run $prog "$flags $testfile $testcopy"]
if ![string equal "" $exec_output] {
fail $test1
if [string equal "" $test2] {
return
}
fail $test2
return
}
if [is_remote host] {
remote_upload host $testcopy tmpdir/copyprog
}
set status [remote_exec build "cmp" "tmpdir/$test_prog tmpdir/copyprog"]
set exec_output [lindex $status 1]
if [string equal "" $exec_output] then {
pass $test1
} else {
send_log "$exec_output\n"
verbose "$exec_output"
# This will fail for many reasons. For example, it will most
# likely fail if a non-GNU linker is used. Therefore, we do
# not insist that it pass. If you are using an assembler and
# linker based on the same BFD as objcopy, it is worth
# investigating to see why this failure occurs. If we are
# cross compiling, we assume that a GNU linker is being used,
# and expect it to succeed.
if {[isnative]} then {
setup_xfail "*-*-*"
}
# This also fails for some mips targets. See elf32-mips.c
# mips_elf_sym_is_global.
if { [is_bad_symtab] } then {
setup_xfail "*-*-*"
}
setup_xfail "arm*-*-coff"
setup_xfail "arm*-*-pe"
setup_xfail "*-*-mingw*"
setup_xfail "*-*-cygwin*"
fail $test1
}
if [string equal "" $test2] {
return
}
set output [remote_load target tmpdir/copyprog]
set status [lindex $output 0]
if { $status != "pass" } {
fail $test2
} else {
pass $test2
}
}
# Test stripping an executable
proc strip_executable { prog flags test1 test2 } {
global NM
global NMFLAGS
global READELF
remote_file build delete tmpdir/striprog
remote_download build tmpdir/copyprog tmpdir/striprog
if [is_remote host] {
set copyfile [remote_download host tmpdir/striprog]
} else {
set copyfile tmpdir/striprog
}
set osabi_fail "false"
if [is_elf_format] {
verbose -log "$READELF -a ${copyfile} > tmpdir/osabi.in"
set exec_output [remote_exec host "$READELF -h ${copyfile}" "" "/dev/null" "tmpdir/osabi.in"]
if { [lindex $exec_output 0] != 0 } then {
unresolved "$test1 preserving OS/ABI"
set osabi_fail "true"
} else {
verbose -log "grep OS/ABI tmpdir/osabi.in"
catch "exec grep OS/ABI tmpdir/osabi.in" osabi_in
}
}
set exec_output [binutils_run $prog "$flags ${copyfile}"]
if ![string equal "" $exec_output] {
fail $test1
if [string equal "" $test2] {
return
}
fail $test2
return
}
if [is_remote host] {
remote_upload host ${copyfile} tmpdir/striprog
}
if { $osabi_fail != "true" && [is_elf_format] } {
verbose -log "$READELF -a ${copyfile} > tmpdir/osabi.out"
set exec_output [remote_exec host "$READELF -h ${copyfile}" "" "/dev/null" "tmpdir/osabi.out"]
if { [lindex $exec_output 0] != 0 } then {
unresolved "$test1 preserving OS/ABI"
} else {
verbose -log "grep OS/ABI tmpdir/osabi.out"
catch "exec grep OS/ABI tmpdir/osabi.out" osabi_out
if { "$osabi_in" == "$osabi_out" } {
pass "$test1 preserving OS/ABI"
} else {
fail "$test1 preserving OS/ABI"
}
}
}
set exec_output [binutils_run $NM "$NMFLAGS ${copyfile}"]
if ![string match "*: no symbols*" $exec_output] {
fail $test1
return
}
if [string equal "" $test2] {
return
}
set result [remote_load target tmpdir/striprog]
set status [lindex $result 0]
if { $status != "pass" } {
fail $test2
return
}
pass $test2
}
# Test stripping an executable with saving a symbol
proc strip_executable_with_saving_a_symbol { prog flags test1 test2 } {
global NM
global NMFLAGS
remote_file build delete tmpdir/striprog
remote_download build tmpdir/copyprog tmpdir/striprog
if [is_remote host] {
set copyfile [remote_download host tmpdir/striprog]
} else {
set copyfile tmpdir/striprog
}
set exec_output [binutils_run $prog "$flags ${copyfile}"]
if ![string equal "" $exec_output] {
fail $test1
if [string equal "" $test2] {
return
}
fail $test2
return
}
set exec_output [binutils_run $NM "$NMFLAGS ${copyfile}"]
if { [istarget mmix-knuth-mmixware] } {
# Whenever there's a symbol in the mmo format, there's the symbol
# Main, so remove it manually from the expected output for sake of
# this test.
# Using "" not {} to get the \n and \r translated.
regsub "^\[0-9a-fA-F\]+\[ \]+T Main\[\n\r\]+" $exec_output "" exec_output
}
if {![regexp {^([0-9a-fA-F]+)?[ ]+[TD] main} $exec_output] \
&& ![regexp {^([0-9a-fA-F]+)?[ ]+[TD] _main} $exec_output]} {
fail $test1
return
}
if [string equal "" $test2] {
return
}
if [is_remote host] {
remote_upload host ${copyfile} tmpdir/striprog
}
set result [remote_load target tmpdir/striprog]
set status [lindex $result 0]
if { $status != "pass" } {
fail $test2
return
}
pass $test2
}
# Test keeping only debug symbols of an executable
proc keep_debug_symbols_and_test_copy { prog1 flags1 test1 prog2 flags2 test2 } {
remote_file build delete tmpdir/striprog
remote_download build tmpdir/copyprog tmpdir/striprog
if [is_remote host] {
set copyfile [remote_download host tmpdir/striprog]
} else {
set copyfile tmpdir/striprog
}
set exec_output [binutils_run $prog1 "$flags1 ${copyfile}"]
if ![string equal "" $exec_output] {
fail $test1
return
}
pass $test1
set exec_output [binutils_run $prog2 "$flags2 ${copyfile}"]
if ![string equal "" $exec_output] {
fail $test2
return
}
pass $test2
}
# Tests that in a debug only copy of a file the sections
# headers whoes types have been changed to NOBITS still
# retain their sh_link fields.
proc keep_debug_symbols_and_check_links { prog flags test } {
global READELF
remote_file build delete tmpdir/striprog
remote_download build tmpdir/copyprog tmpdir/striprog
if [is_remote host] {
set copyfile [remote_download host tmpdir/striprog]
} else {
set copyfile tmpdir/striprog
}
set exec_output [binutils_run $prog "$flags ${copyfile}"]
if ![string equal "" $exec_output] {
fail $test
return
}
set got [binutils_run $READELF "-S --wide ${copyfile}"]
set fails 0
# Regexp to match a section with NOBITS type and extract its name and sh_link fields
while {[regexp \
{[^a-zA-Z]+([a-zA-Z0-9_\.]+)[ ]+NOBITS[ ]+[0-9a-fA-F]+ [0-9a-fA-F]+ [0-9a-fA-F]+ [0-9]+[ A]+([0-9]+)(.*)} \
$got all name link rest]} {
set sh_link 0x$link
if {$sh_link == 0} {
# Only some NOBITS sections should have a non-zero sh_link field.
# Look for them by name.
verbose "NOBITS section .$name has a 0 sh_link field\n"
switch $name {
"rela.*" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"rel.*" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"hash" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"gnu_version" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"dynsym" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"gnu.version_r" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"dynamic" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
"symtab" { set fails 1 ; send_log "Expected non-zero sh_link for .$name\n" }
}
}
set got $rest
}
if {$fails == 0} {
pass $test
} else {
fail $test
}
}
set test1 "simple objcopy of executable"
set test1r "run objcopy of executable"
set test2 "strip executable"
set test2r "run stripped executable"
set test3 "strip executable with saving a symbol"
set test3r "run stripped executable with saving a symbol"
set test4 "keep only debug data"
set test5 "simple objcopy of debug data"
if [is_elf_format] {
set test6 "NOBITS sections retain sh_link field"
}
switch [copy_setup] {
"1" {
# do nothing
}
"2" {
untested $test1
untested $test1r
untested $test2
untested $test2r
untested $test3
untested $test3r
untested $test4
untested $test5
if [is_elf_format] {
untested $test6
}
}
"3" {
copy_executable "$OBJCOPY" "$OBJCOPYFLAGS" "$test1" ""
unsupported $test1r
strip_executable "$STRIP" "$STRIPFLAGS" "$test2" ""
unsupported $test2r
strip_executable_with_saving_a_symbol "$STRIP" "-K main -K _main $STRIPFLAGS" "$test3" ""
unsupported $test3r
keep_debug_symbols_and_test_copy "$STRIP" "--only-keep-debug $STRIPFLAGS" "$test4" \
"$OBJCOPY" "$OBJCOPYFLAGS" "$test5"
if [is_elf_format] {
keep_debug_symbols_and_check_links "$STRIP" "--only-keep-debug $STRIPFLAGS" "$test6"
}
}
"0" {
copy_executable "$OBJCOPY" "$OBJCOPYFLAGS" "$test1" "$test1r"
strip_executable "$STRIP" "$STRIPFLAGS" "$test2" "$test2r"
strip_executable_with_saving_a_symbol "$STRIP" "-K main -K _main $STRIPFLAGS" "$test3" "$test3r"
keep_debug_symbols_and_test_copy "$STRIP" "--only-keep-debug $STRIPFLAGS" "$test4" \
"$OBJCOPY" "$OBJCOPYFLAGS" "$test5"
if [is_elf_format] {
keep_debug_symbols_and_check_links "$STRIP" "--only-keep-debug $STRIPFLAGS" "$test6"
}
}
}
proc objcopy_test_readelf {testname srcfile} {
global OBJCOPY
global OBJCOPYFLAGS
global READELF
global srcdir
global subdir
if {![binutils_assemble $srcdir/$subdir/${srcfile} tmpdir/bintest.o]} then {
unresolved "objcopy ($testname)"
return
}
verbose -log "$OBJCOPY $OBJCOPYFLAGS tmpdir/bintest.o tmpdir/copy.o"
set exec_output [remote_exec host "$OBJCOPY $OBJCOPYFLAGS tmpdir/bintest.o tmpdir/copy.o"]
if { [lindex $exec_output 0] != 0
|| ![string equal "" [lindex $exec_output 1]] } then {
fail "objcopy ($testname)"
return
}
verbose -log "$READELF -a tmpdir/bintest.o > tmpdir/bintest.o.out"
set exec_output [remote_exec host "$READELF -a tmpdir/bintest.o" "" "/dev/null" "tmpdir/bintest.o.out"]
if { [lindex $exec_output 0] != 0 } then {
unresolved "objcopy ($testname)"
return
}
set exec_output [prune_warnings [lindex $exec_output 1]]
if ![string equal "" $exec_output] then {
unresolved "objcopy ($testname)"
return
}
verbose -log "$READELF -a tmpdir/copy.o > tmpdir/copy.o.out"
set exec_output [remote_exec host "$READELF -a tmpdir/copy.o" "" "/dev/null" "tmpdir/copy.o.out"]
if { [lindex $exec_output 0] != 0 } then {
unresolved "objcopy ($testname)"
return
}
set exec_output [prune_warnings [lindex $exec_output 1]]
if ![string equal "" $exec_output] then {
unresolved "objcopy ($testname)"
return
}
verbose -log "diff tmpdir/bintest.o.out tmpdir/copy.o.out"
catch "exec diff tmpdir/bintest.o.out tmpdir/copy.o.out" exec_output
set exec_output [prune_warnings $exec_output]
if [string equal "" $exec_output] then {
pass "objcopy ($testname)"
} else {
fail "objcopy ($testname)"
}
}
proc objcopy_test_symbol_manipulation {} {
global srcdir
global subdir
set test_list [lsort [glob -nocomplain $srcdir/$subdir/symbols-*.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]
}
}
proc objcopy_test_elf_common_symbols {} {
global srcdir
global subdir
# hpux has a non-standard common directive.
if { [istarget "*-*-hpux*"] } then {
return
}
set test_list [lsort [glob -nocomplain $srcdir/$subdir/common-*.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]
}
}
# ia64 specific tests
if { ([istarget "ia64-*-elf*"]
|| [istarget "ia64-*-linux*"]) } {
objcopy_test "ia64 link order" link-order.s
}
# ELF specific tests
if [is_elf_format] {
objcopy_test_symbol_manipulation
objcopy_test_elf_common_symbols
objcopy_test "ELF unknown section type" unknown.s
objcopy_test_readelf "ELF group" group.s
objcopy_test_readelf "ELF group" group-2.s
objcopy_test_readelf "ELF group" group-3.s
objcopy_test_readelf "ELF group" group-4.s
run_dump_test "group-5"
run_dump_test "group-6"
run_dump_test "copy-1"
run_dump_test "note-1"
}
run_dump_test "copy-2"
run_dump_test "copy-3"
run_dump_test "copy-4"
run_dump_test "pr19020a"
run_dump_test "pr19020b"
if [is_elf_format] {
run_dump_test "strip-1"
run_dump_test "strip-2"
run_dump_test "strip-3"
run_dump_test "strip-4"
run_dump_test "strip-5"
run_dump_test "strip-6"
run_dump_test "strip-7"
run_dump_test "strip-8"
run_dump_test "strip-9"
run_dump_test "strip-12"
# This requires STB_GNU_UNIQUE support with OSABI set to GNU.
if { [supports_gnu_unique] } {
run_dump_test "strip-10"
}
set extra_strip11 ""
if { [istarget "sh64*-*"] } {
# pr17755 testcase
set extra_strip11 { { "as" "--isa=SHmedia --abi=64" } }
}
run_dump_test "strip-11" $extra_strip11
if { [istarget "i*86-*"] || [istarget "x86_64-*-*"] } {
# Check to make sure we don't strip a symbol named in relocations.
set test "objcopy keeps symbols needed by relocs"
set srcfile $srcdir/$subdir/needed-by-reloc.s
if {![binutils_assemble $srcfile tmpdir/bintest.o]} then {
unresolved $test
} else {
set got [binutils_run $OBJCOPY "$OBJCOPYFLAGS --strip-symbol=foo tmpdir/bintest.o ${copyfile}.o"]
if [regexp "not stripping symbol `foo' because it is named in a relocation" $got] {
pass $test
} else {
fail $test
}
}
}
# The symbol table for some MIPS targets is sorted differently than
# the ELF canonical order, so the regexps in localize-hidden-1.d fail
# to match.
if { [is_bad_symtab] } then {
setup_xfail "*-*-*"
}
run_dump_test "localize-hidden-1"
run_dump_test "testranges"
run_dump_test "testranges-ia64"
run_dump_test "add-section"
run_dump_test "add-symbol"
run_dump_test "add-empty-section"
run_dump_test "exclude-1a"
run_dump_test "exclude-1b"
run_dump_test "only-section-01"
run_dump_test "remove-section-01"
# Test the remove relocation functionality
set test_list [lsort [glob -nocomplain $srcdir/$subdir/remove-relocs-*.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]
}
}
run_dump_test "localize-hidden-2"
# Test objcopying an object file without global symbol
proc objcopy_test_without_global_symbol { } {
global OBJCOPY
global OBJCOPYFLAGS
global OBJDUMP
global OBJDUMPFLAGS
global srcdir
global subdir
set test "strip without global symbol "
if { [target_compile $srcdir/$subdir/pr19547.c tmpdir/pr19547.o object debug] != "" } {
untested $test
return
}
if [is_remote host] {
set objfile [remote_download host tmpdir/pr19547.o]
} else {
set objfile tmpdir/pr19547.o
}
set exec_output [binutils_run $OBJCOPY "$OBJCOPYFLAGS --strip-unneeded $objfile"]
if ![string equal "" $exec_output] {
fail $test
return
}
set exec_output [binutils_run $OBJDUMP "$OBJDUMPFLAGS -t $objfile"]
if {![regexp "no symbols" $exec_output]} {
fail $test
return
}
pass $test
}
# The AArch64 and ARM targets preserve mapping symbols
# in object files, so they will fail this test.
setup_xfail aarch64*-*-* arm*-*-*
objcopy_test_without_global_symbol