# Support routines for LD testsuite.
# Copyright (C) 1994-2020 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This file 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.
proc load_common_lib { name } {
global srcdir
load_file $srcdir/../../binutils/testsuite/lib/$name
}
load_common_lib binutils-common.exp
# Returns 1 if the gcc for the target is at least version MAJOR.MINOR
# Returns 0 otherwise.
#
proc at_least_gcc_version { major minor } {
global CC
if {![info exists CC]} {
set CC [find_gcc]
}
if { $CC == "" } {
return 0
}
# Filter out -Wl, options.
regsub -all -- "-Wl,\[^ ^\t\]+" $CC "" cc_cmd
set state [remote_exec host $cc_cmd --version]
if { [lindex $state 0] != 0 } {
return 0;
}
set tmp "[lindex $state 1]\n"
# Look for (eg) 4.6.1 in the version output.
set ver_re "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?"
regexp $ver_re $tmp fred maj min
verbose "gcc version: $tmp"
if { ![info exists maj] || ![info exists min] } then {
perror "can't decipher gcc version number, fix the framework!"
return 0
}
verbose "major gcc version is $maj, want at least $major"
if { $maj == $major } then {
verbose "minor gcc version is $min, want at least $minor"
return [expr $min >= $minor]
} else {
return [expr $maj > $major]
}
}
# Extract and print the version number of ld.
#
proc default_ld_version { ld } {
global host_triplet
if { ![is_remote host] && [which $ld] == 0 } then {
perror "$ld does not exist"
exit 1
}
remote_exec host "$ld --version" "" "/dev/null" "ld.version"
remote_upload host "ld.version"
set tmp [prune_warnings [file_contents "ld.version"]]
remote_file build delete "ld.version"
remote_file host delete "ld.version"
regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
if [info exists number] then {
clone_output "$ld $number\n"
}
}
proc run_host_cmd { prog command } {
global link_output
global gcc_B_opt
global ld_L_opt
global gcc_ld_B_opt_tested
global ld
if { ![is_remote host] && [which "$prog"] == 0 } then {
perror "$prog does not exist"
return 0
}
# If we are compiling with gcc, we want to add gcc_B_opt and
# ld_L_opt to flags. However, if $prog already has -B options,
# which might be the case when running gcc out of a build
# directory, we want our -B options to come first.
set gccexe $prog
set gccparm [string first " " $gccexe]
set gccflags ""
if { $gccparm > 0 } then {
set gccflags [string range $gccexe $gccparm end]
set gccexe [string range $gccexe 0 $gccparm]
set prog $gccexe
}
set gccexe [string replace $gccexe 0 [string last "/" $gccexe] ""]
if {[string match "*cc*" $gccexe] || [string match "*++*" $gccexe]} then {
set gccflags "$gcc_B_opt $gccflags $ld_L_opt"
if {![info exists gcc_ld_B_opt_tested]} {
set gcc_ld_B_opt_tested 1
set ld_version_message [run_host_cmd "$ld" "--version"]
set gcc_ld_version_message [run_host_cmd "$prog" "$gccflags -Wl,--version"]
if {[string first $ld_version_message $gcc_ld_version_message] < 0} {
perror "************************************************************************"
perror "Your compiler driver ignores -B when choosing ld."
perror "You will not be testing the new ld in many of the following tests."
set gcc_ld_version [run_host_cmd "$prog" "$gccflags --print-prog-name=ld"]
if {![string match "" $gcc_ld_version] && ![string match "ld" $gcc_ld_version]} {
perror "It seems you will be testing $gcc_ld_version instead."
}
perror "************************************************************************"
}
}
}
verbose -log "$prog $gccflags $command"
set status [remote_exec host [concat sh -c [list "$prog $gccflags $command 2>&1"]] "" "/dev/null" "ld.tmp"]
remote_upload host "ld.tmp"
set link_output [file_contents "ld.tmp"]
regsub "\n$" $link_output "" link_output
if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
append link_output "child process exited abnormally"
}
remote_file build delete ld.tmp
remote_file host delete ld.tmp
if [string match "" $link_output] then {
return ""
}
verbose -log "$link_output"
return "$link_output"
}
proc run_host_cmd_yesno { prog command } {
global exec_output
global errcnt warncnt
set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
# Ignore error and warning.
set errcnt 0
set warncnt 0
if [string match "" $exec_output] then {
return 1;
}
return 0;
}
# Link an object using relocation.
#
proc default_ld_relocate { ld target objects } {
global HOSTING_EMU
remote_file host delete $target
return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
}
# Check to see if ld is being invoked with a non-endian output format
#
proc is_endian_output_format { object_flags } {
if {[string match "*-oformat binary*" $object_flags] || \
[string match "*-oformat ieee*" $object_flags] || \
[string match "*-oformat ihex*" $object_flags] || \
[string match "*-oformat netbsd-core*" $object_flags] || \
[string match "*-oformat srec*" $object_flags] || \
[string match "*-oformat tekhex*" $object_flags] || \
[string match "*-oformat trad-core*" $object_flags] } then {
return 0
} else {
return 1
}
}
# Link a program using ld
#
proc default_ld_link { ld target objects } {
global host_triplet
global exec_output
set flags ""
if [is_endian_output_format $objects] then {
set flags [big_or_little_endian]
}
remote_file host delete $target
set exec_output [run_host_cmd "$ld" "$flags -o $target $objects"]
set exec_output [prune_warnings $exec_output]
# We don't care if we get a warning about a non-existent start
# symbol, since the default linker script might use ENTRY.
regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
return [string match "" $exec_output]
}
# Compile an object using cc.
#
proc default_ld_compile { cc source object } {
global CFLAGS
global CXXFLAGS
global srcdir
global subdir
global host_triplet
global gcc_B_opt
set cc_prog $cc
if {[llength $cc_prog] > 1} then {
set cc_prog [lindex $cc_prog 0]
}
if {![is_remote host] && [which $cc_prog] == 0} then {
perror "$cc_prog does not exist"
return 0
}
remote_file build delete "$object"
remote_file host delete "$object"
set flags "$gcc_B_opt -I$srcdir/$subdir"
# If we are compiling with gcc, we want to add gcc_B_opt to flags.
# However, if $prog already has -B options, which might be the
# case when running gcc out of a build directory, we want our -B
# options to come first.
set ccexe $cc
set ccparm [string first " " $cc]
set ccflags ""
if { $ccparm > 0 } then {
set ccflags [string range $cc $ccparm end]
set ccexe [string range $cc 0 $ccparm]
set cc $ccexe
}
set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
if {[string match "*++*" $ccexe]} {
append flags " $CXXFLAGS"
} else {
append flags " $CFLAGS"
}
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists multilib_flags] {
append flags " [board_info [target_info name] multilib_flags]"
}
set cmd "$cc $flags $ccflags -c $source -o $object"
verbose -log "$cmd"
set status [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
remote_upload host "ld.tmp"
set exec_output [file_contents "ld.tmp"]
remote_file build delete "ld.tmp"
remote_file host delete "ld.tmp"
set exec_output [prune_warnings $exec_output]
# Versions of gcc up to and including pre-release gcc-7, at least on
# some targets, generate .section directives with incorrect type.
# Ignore warnings from the assembler about this.
regsub -all "(^|\n)\[^\n\]*: ignoring incorrect section type \[^\n\]*" $exec_output "" exec_output
regsub -all "^\[^\n\]*: Assembler messages:\n" $exec_output "" exec_output
if [string match "" $exec_output] then {
if {![file exists $object]} then {
regexp ".*/(\[^/\]*)$" $source all dobj
regsub "\\.c" $dobj ".o" realobj
verbose "looking for $realobj"
if {[remote_file host exists $realobj]} then {
verbose -log "mv $realobj $object"
remote_upload "$realobj" "$object"
} else {
perror "$object not found after compilation"
return 0
}
}
return 1
} else {
verbose -log "$exec_output"
return 0
}
}
# Assemble a file.
#
proc default_ld_assemble { as in_flags source object } {
global ASFLAGS
global host_triplet
global srcdir
global subdir
if ![info exists ASFLAGS] { set ASFLAGS "" }
set flags "[big_or_little_endian] -I$srcdir/$subdir"
set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
set exec_output [prune_warnings $exec_output]
if [string match "" $exec_output] then {
return 1
} else {
return 0
}
}
# Run nm on a file, putting the result in the array nm_output.
#
proc default_ld_nm { nm nmflags object } {
global NMFLAGS
global nm_output
global host_triplet
if {[info exists nm_output]} {
unset nm_output
}
if ![info exists NMFLAGS] { set NMFLAGS "" }
# Ensure consistent sorting of symbols
if {[info exists env(LC_ALL)]} {
set old_lc_all $env(LC_ALL)
}
set env(LC_ALL) "C"
verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
if {[info exists old_lc_all]} {
set env(LC_ALL) $old_lc_all
} else {
unset env(LC_ALL)
}
remote_upload host "ld.stderr"
remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
set exec_output [prune_warnings [file_contents "ld.stderr"]]
remote_file host delete "ld.stderr"
remote_file build delete "ld.stderr"
if [string match "" $exec_output] then {
set file [open tmpdir/nm.out r]
while { [gets $file line] != -1 } {
verbose "$line" 2
if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
set name [string trimleft $name "_"]
verbose "Setting nm_output($name) to 0x$value" 2
set nm_output($name) 0x$value
}
}
close $file
return 1
} else {
verbose -log "$exec_output"
return 0
}
}
# Define various symbols needed when not linking against all
# target libs.
proc ld_link_defsyms {} {
set flags "--defsym __stack_chk_fail=0"
# ARM targets call __gccmain
if {[istarget arm*-*-*]} {
append flags " --defsym __gccmain=0"
}
# Windows targets need __main, some prefixed with underscore.
if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
append flags " --defsym __main=main --defsym ___main=main"
}
# PowerPC EABI code calls __eabi.
if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
append flags " --defsym __eabi=0"
}
# mn10200 code calls __truncsipsi2_d0_d2.
if {[istarget mn10200*-*-*]} then {
append flags " --defsym __truncsipsi2_d0_d2=0"
}
# m6811/m6812 code has references to soft registers.
if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
append flags " --defsym _.d3=0 --defsym _.d4=0"
append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
}
# Some OpenBSD targets have ProPolice and reference __guard and
# __stack_smash_handler.
if [istarget *-*-openbsd*] {
append flags " --defsym __guard=0"
append flags " --defsym __stack_smash_handler=0"
}
return $flags
}
# Create an archive using ar
#
proc ar_simple_create { ar aropts target objects } {
remote_file host delete $target
set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
set exec_output [prune_warnings $exec_output]
if [string match "" $exec_output] then {
send_log "$exec_output\n"
return 1
} else {
return 0
}
}
# List contains test-items with 3 items followed by 2 lists, one item and
# one optional item:
# 0:name
# 1:ld/ar leading options, placed before object files
# 2:ld/ar trailing options, placed after object files
# 3:assembler options
# 4:filenames of assembler files
# 5:list of actions, options and expected outputs.
# 6:name of output file
# 7:compiler flags (optional)
#
# Actions: { command command-line-options file-containg-expected-output-regexps }
# Commands:
# objdump: Apply objdump options on result.
# nm: Apply nm options on result.
# readelf: Apply readelf options on result.
# ld: Don't apply anything on result. Compare output during linking with
# the file containing regexps (which is the second arg, not the third).
# Note that this *must* be the first action if it is to be used at all;
# in all other cases, any output from the linker during linking is
# treated as a sign of an error and FAILs the test.
#
# args is an optional list of target triplets to be xfailed.
#
proc run_ld_link_tests { ldtests args } {
global ld
global as
global nm
global ar
global objdump
global READELF
global srcdir
global subdir
global env
global CC
global CFLAGS
global runtests
global exec_output
set ld_extra_opt ""
if [check_relro_support] {
set ld_extra_opt "-z norelro"
}
foreach testitem $ldtests {
set testname [lindex $testitem 0]
if ![runtest_file_p $runtests $testname] then {
continue
}
foreach target $args {
if [match_target $target] {
setup_xfail "*-*-*"
break
}
}
set ld_options [lindex $testitem 1]
set ld_after [lindex $testitem 2]
set as_options [lindex $testitem 3]
set src_files [lindex $testitem 4]
set actions [lindex $testitem 5]
set binfile tmpdir/[lindex $testitem 6]
set cflags [lindex $testitem 7]
set objfiles {}
set is_unresolved 0
set failed 0
set maybe_failed 0
set ld_output ""
# verbose -log "Testname is $testname"
# verbose -log "ld_options is $ld_options"
# verbose -log "ld_after is $ld_after"
# verbose -log "as_options is $as_options"
# verbose -log "src_files is $src_files"
# verbose -log "actions is $actions"
# verbose -log "binfile is $binfile"
# Assemble each file in the test.
foreach src_file $src_files {
set fileroot "[file rootname [file tail $src_file]]"
set objfile "tmpdir/$fileroot.o"
lappend objfiles $objfile
if { [file extension $src_file] == ".c" } {
set as_file "tmpdir/$fileroot.s"
if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
set is_unresolved 1
break
}
} else {
set as_file "$srcdir/$subdir/$src_file"
}
if ![ld_assemble $as "$as_options $as_file" $objfile] {
set failed 1
break
}
}
# Catch assembler errors.
if { $failed } {
fail $testname
continue
}
# Catch compiler errors.
if { $is_unresolved } {
unresolved $testname
continue
}
if { $binfile eq "tmpdir/" } {
# compile only
} elseif { [regexp ".*\\.a$" $binfile] } {
if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
set failed 1
}
} elseif { ![ld_link $ld $binfile "$ld_extra_opt -L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
set maybe_failed 1
set ld_output "$exec_output"
}
if { !$failed } {
foreach actionlist $actions {
set action [lindex $actionlist 0]
set progopts [lindex $actionlist 1]
# There are actions where we run regexp_diff on the
# output, and there are other actions (presumably).
# Handling of the former look the same.
set dump_prog ""
switch -- $action {
objdump
{ set dump_prog $objdump }
nm
{ set dump_prog $nm }
readelf
{ set dump_prog $READELF }
ld
{ set dump_prog "ld" }
default
{
perror "Unrecognized action $action"
set is_unresolved 1
break
}
}
if { $action == "ld" } {
set regexpfile $progopts
verbose "regexpfile is $srcdir/$subdir/$regexpfile"
set_file_contents "tmpdir/ld.messages" "$ld_output"
verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
verbose "output is $ld_output" 2
set failed 1
break
}
set maybe_failed 0
} elseif { !$maybe_failed && $dump_prog != "" } {
set dumpfile [lindex $actionlist 2]
set binary $dump_prog
# Ensure consistent sorting of symbols
if {[info exists env(LC_ALL)]} {
set old_lc_all $env(LC_ALL)
}
set env(LC_ALL) "C"
set cmd "$binary $progopts $binfile"
set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
send_log "$cmd\n"
remote_upload host "ld.stderr"
set comp_output [prune_warnings [file_contents "ld.stderr"]]
remote_file host delete "ld.stderr"
remote_file build delete "ld.stderr"
if {[info exists old_lc_all]} {
set env(LC_ALL) $old_lc_all
} else {
unset env(LC_ALL)
}
if ![string match "" $comp_output] then {
send_log "$comp_output\n"
set failed 1
break
}
remote_upload host "dump.out"
if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
verbose "output is [file_contents "dump.out"]" 2
set failed 1
remote_file build delete "dump.out"
remote_file host delete "dump.out"
break
}
remote_file build delete "dump.out"
remote_file host delete "dump.out"
}
}
}
if { $is_unresolved } {
unresolved $testname
} elseif { $maybe_failed || $failed } {
fail $testname
} else {
pass $testname
}
}
}
# ldtests contains test-items with 3 items followed by 1 lists, 2 items
# and 3 optional items:
# 0:name
# 1:ld leading options, placed before object files
# 2:assembler options
# 3:filenames of source files
# 4:name of output file
# 5:expected output
# 6:compiler flags (optional)
# 7:language (optional)
# 8:linker warning (optional)
# 9:ld trailing options, placed after object files (optional)
# args is an optional list of target triplets to be xfailed.
proc run_ld_link_exec_tests { ldtests args } {
global ld
global as
global srcdir
global subdir
global env
global CC
global CXX
global CFLAGS
global CXXFLAGS
global errcnt
global exec_output
global board_cflags
global STATIC_LDFLAGS
# When using GCC as the linker driver, we need to specify board cflags when
# linking because cflags may contain linker options. For example when
# linker options are included in GCC spec files then we need the -specs
# option.
if [board_info [target_info name] exists cflags] {
set board_cflags " [board_info [target_info name] cflags]"
} else {
set board_cflags ""
}
foreach testitem $ldtests {
set testname [lindex $testitem 0]
set ld_options [lindex $testitem 1]
set as_options [lindex $testitem 2]
set src_files [lindex $testitem 3]
set binfile tmpdir/[lindex $testitem 4]
set expfile [lindex $testitem 5]
set cflags [lindex $testitem 6]
set lang [lindex $testitem 7]
set warning [lindex $testitem 8]
set ld_after [lindex $testitem 9]
set objfiles {}
set failed 0
if { ![check_compiler_available] } {
unsupported $testname
continue
}
# Add -fno-lto. LTO should be tested explicitly by $cflags.
if {[check_lto_available]} {
set cflags "-fno-lto $cflags"
}
foreach target $args {
if [match_target $target] {
setup_xfail "*-*-*"
break
}
}
# verbose -log "Testname is $testname"
# verbose -log "ld_options is $ld_options"
# verbose -log "as_options is $as_options"
# verbose -log "src_files is $src_files"
# verbose -log "binfile is $binfile"
# Assemble each file in the test.
foreach src_file $src_files {
set fileroot "[file rootname [file tail $src_file]]"
set objfile "tmpdir/$fileroot.o"
lappend objfiles $objfile
if { [ string match "c++" $lang ] } {
set cmd "$CXX -c $CXXFLAGS $cflags"
} else {
set cmd "$CC -c $CFLAGS $cflags"
}
if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
set failed 1
break
}
}
if { $failed != 0 } {
unresolved $testname
continue
}
if { [ string match "asm" $lang ] } {
set link_proc ld_link
set link_cmd $ld
} elseif { [ string match "c++" $lang ] } {
set link_proc ld_link
set link_cmd $CXX
} else {
set link_proc ld_link
set link_cmd $CC
}
if { $binfile eq "tmpdir/" } {
# compile only
pass $testname
continue;
} else {
if { [string match "" $STATIC_LDFLAGS] \
&& [regexp -- ".* \[-\]+static .*" " $board_cflags $ld_options $objfiles $ld_after "] } {
untested $testname
continue
}
if ![$link_proc $link_cmd $binfile "$board_cflags -L$srcdir/$subdir $ld_options $objfiles $ld_after"] {
set failed 1
}
}
# Check if exec_output is expected.
if { $warning != "" } then {
verbose -log "returned with: <$exec_output>, expected: <$warning>"
if { [regexp $warning $exec_output] } then {
set failed 0
} else {
set failed 1
}
}
if { $failed == 0 && [isnative] } {
send_log "Running: $binfile > $binfile.out\n"
verbose "Running: $binfile > $binfile.out"
catch "exec $binfile > $binfile.out" exec_output
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
set failed 1
} else {
send_log [file_contents $binfile.out]
verbose [file_contents $binfile.out] 2
if [regexp_diff "$binfile.out" "$srcdir/$subdir/$expfile"] {
set failed 1
}
}
}
if { $failed != 0 } {
fail $testname
} elseif ![isnative] {
unsupported $testname
} else {
set errcnt 0
pass $testname
}
}
}
# List contains test-items with 3 items followed by 2 lists, one item and
# one optional item:
# 0:name
# 1:ld or ar options
# 2:compile options
# 3:filenames of source files
# 4:action and options.
# 5:name of output file
# 6:language (optional)
#
# Actions:
# objdump: Apply objdump options on result. Compare with regex (last arg).
# nm: Apply nm options on result. Compare with regex (last arg).
# readelf: Apply readelf options on result. Compare with regex (last arg).
# warning: Check linker output against regex (last arg).
# error: Like 'warning' but checking output in error case.
# warning_output: Check linker output against regex in a file (last arg).
# error_output: Like 'warning_output' but checking output in error case.
#
proc run_cc_link_tests { ldtests } {
global nm
global objdump
global READELF
global srcdir
global subdir
global env
global CC
global CXX
global CFLAGS
global CXXFLAGS
global ar
global exec_output
global board_cflags
global STATIC_LDFLAGS
if [board_info [target_info name] exists cflags] {
set board_cflags " [board_info [target_info name] cflags]"
} else {
set board_cflags ""
}
foreach testitem $ldtests {
set testname [lindex $testitem 0]
set ldflags [lindex $testitem 1]
set cflags [lindex $testitem 2]
set src_files [lindex $testitem 3]
set actions [lindex $testitem 4]
set binfile tmpdir/[lindex $testitem 5]
set lang [lindex $testitem 6]
set objfiles {}
set is_unresolved 0
set failed 0
set check_ld(terminal) 0
set check_ld(source) ""
if { ![check_compiler_available] } {
unsupported $testname
continue
}
# Add -fno-lto. LTO should be tested explicitly by $cflags.
if {[check_lto_available]} {
set cflags "-fno-lto $cflags"
}
#verbose -log "testname is $testname"
#verbose -log "ldflags is $ldflags"
#verbose -log "cflags is $cflags"
#verbose -log "src_files is $src_files"
#verbose -log "actions is $actions"
#verbose -log "binfile is $binfile"
#verbose -log "lang is $lang"
foreach actionlist $actions {
set action [lindex $actionlist 0]
set progopts [lindex $actionlist 1]
# Find actions related to error/warning processing.
switch -- $action {
error
{
set check_ld(source) "regexp"
set check_ld(regexp) $progopts
set check_ld(terminal) 1
}
warning
{
set check_ld(source) "regexp"
set check_ld(regexp) $progopts
}
error_output
{
set check_ld(source) "file"
set check_ld(file) $progopts
set check_ld(terminal) 1
}
warning_output
{
set check_ld(source) "file"
set check_ld(file) $progopts
}
}
}
# Compile each file in the test.
foreach src_file $src_files {
set fileroot "[file rootname [file tail $src_file]]"
set objfile "tmpdir/$fileroot.o"
lappend objfiles $objfile
if { [ string match "c++" $lang ] } {
set cmd "$CXX -c $CXXFLAGS $cflags"
} else {
set cmd "$CC -c $CFLAGS $cflags"
}
if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
set failed 1
break
}
}
if { $failed != 0 } {
unresolved $testname
continue
}
# Clear error and warning counts.
reset_vars
if { [ string match "c++" $lang ] } {
set cc_cmd $CXX
} else {
set cc_cmd $CC
}
if { $binfile eq "tmpdir/" } {
# compile only
set binfile $objfile
} elseif { [regexp ".*\\.a$" $binfile] } {
if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
set failed 1
}
} else {
if { [string match "" $STATIC_LDFLAGS] \
&& [regexp -- ".* \[-\]+static .*" " $board_cflags $ldflags $objfiles "] } {
untested $testname
continue
}
ld_link $cc_cmd $binfile "$board_cflags -L$srcdir/$subdir $ldflags $objfiles"
set ld_output "$exec_output"
if { $check_ld(source) == "regexp" } then {
# Match output against regexp argument.
verbose -log "returned with: <$ld_output>, expected: <$check_ld(regexp)>"
if { ![regexp $check_ld(regexp) $ld_output] } then {
set failed 1
}
} elseif { $check_ld(source) == "file" } then {
# Match output against patterns in a file.
set_file_contents "tmpdir/ld.messages" "$ld_output"
verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$check_ld(file)"] } then {
verbose "output is $ld_output" 2
set failed 1
}
}
if { $check_ld(source) != "" } then {
if { $ld_output == "" } then {
verbose -log "Linker was expected to give error or warning"
set failed 1
}
} else {
if { $ld_output != "" } then {
verbose -log "Unexpected linker warning or error"
set failed 1
}
}
}
if { $failed == 0 } {
foreach actionlist $actions {
set action [lindex $actionlist 0]
set progopts [lindex $actionlist 1]
# There are actions where we run regexp_diff on the
# output, and there are other actions (presumably).
# Handling of the former look the same.
set dump_prog ""
switch -- $action {
objdump
{ set dump_prog $objdump }
nm
{ set dump_prog $nm }
readelf
{ set dump_prog $READELF }
error {}
warning {}
error_output {}
warning_output {}
default
{
perror "Unrecognized action $action"
set is_unresolved 1
break
}
}
if { $dump_prog != "" } {
set dumpfile [lindex $actionlist 2]
set binary $dump_prog
# Ensure consistent sorting of symbols
if {[info exists env(LC_ALL)]} {
set old_lc_all $env(LC_ALL)
}
set env(LC_ALL) "C"
set cmd "$binary $progopts $binfile > dump.out"
send_log "$cmd\n"
catch "exec $cmd" comp_output
if {[info exists old_lc_all]} {
set env(LC_ALL) $old_lc_all
} else {
unset env(LC_ALL)
}
set comp_output [prune_warnings $comp_output]
if ![string match "" $comp_output] then {
send_log "$comp_output\n"
set failed 1
break
}
if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
verbose "output is [file_contents "dump.out"]" 2
set failed 1
break
}
}
}
}
if { $failed } {
fail $testname
} elseif { $is_unresolved } {
unresolved $testname
} else {
pass $testname
}
}
}
# Returns true if --gc-sections is supported on the target.
proc check_gc_sections_available { } {
global gc_sections_available_saved
global ld
if {![info exists gc_sections_available_saved]} {
# Some targets don't support gc-sections despite whatever's
# advertised by ld's options.
if { [istarget alpha-*-*]
|| [istarget bpf-*-*]
|| [istarget d30v-*-*]
|| [istarget dlx-*-*]
|| [istarget hppa*64-*-*]
|| [istarget ia64-*-*]
|| [istarget mep-*-*]
|| [istarget mn10200-*-*]
|| [istarget pj*-*-*]
|| [istarget pru*-*-*]
|| [istarget s12z-*-*]
|| [istarget xgate-*-*]
|| [istarget z80-*-*] } {
set gc_sections_available_saved 0
return 0
}
# elf2flt uses -q (--emit-relocs), which is incompatible with
# --gc-sections.
if { [board_info target exists ldflags]
&& [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
set gc_sections_available_saved 0
return 0
}
# Check if the ld used by gcc supports --gc-sections.
# FIXME: this test is useless since ld --help always says
# --gc-sections is available
set ld_output [remote_exec host $ld "--help"]
if { [ string first "--gc-sections" $ld_output ] >= 0 } {
set gc_sections_available_saved 1
} else {
set gc_sections_available_saved 0
}
}
return $gc_sections_available_saved
}
# Return true if target uses genelf.em.
proc uses_genelf { } {
if { [istarget "d30v-*-*"]
|| [istarget "dlx-*-*"]
|| [istarget "fr30-*-*"]
|| ([istarget "frv-*-*"] && ![istarget "frv-*-linux*"])
|| [istarget "ft32-*-*"]
|| [istarget "iq2000-*-*"]
|| [istarget "mn10200-*-*"]
|| [istarget "msp430-*-*"]
|| [istarget "mt-*-*"]
|| [istarget "pj*-*-*"]
|| [istarget "s12z-*-*"]
|| [istarget "xgate-*-*"] } {
return 1
}
return 0
}
proc is_underscore_target { } {
global is_underscore_target_saved
global target_triplet
global srcdir
if { ![info exists is_underscore_target_saved] } {
set cmd "targ=$target_triplet . $srcdir/../../bfd/config.bfd &&"
append cmd { echo "$targ_underscore"}
verbose -log "$cmd"
set status [catch {exec sh -c $cmd} result]
if { $status == 0 && [string match "yes" $result] } {
set is_underscore_target_saved 1
} else {
set is_underscore_target_saved 0
}
}
return $is_underscore_target_saved
}
# Returns true if the target ld supports the plugin API.
proc check_plugin_api_available { } {
global plugin_api_available_saved
global ld
if {![info exists plugin_api_available_saved]} {
# Check if the ld used by gcc supports --plugin.
set ld_output [remote_exec host $ld "--help"]
if { [regexp -- "-plugin PLUGIN \[^\n\r\]*" $ld_output line]
&& ![regexp "ignored" $line] } {
set plugin_api_available_saved 1
} else {
set plugin_api_available_saved 0
}
}
return $plugin_api_available_saved
}
# Sets ld_sysroot to the current sysroot (empty if not supported) and
# returns true if the target ld supports sysroot.
proc check_sysroot_available { } {
global ld_sysroot_available_saved ld ld_sysroot
if {![info exists ld_sysroot_available_saved]} {
# Check if ld supports --sysroot *other* than empty.
set ld_sysroot [string trimright [lindex [remote_exec host $ld "--print-sysroot"] 1]]
if { $ld_sysroot == "" } {
set ld_sysroot_available_saved 0
} else {
set ld_sysroot_available_saved 1
}
}
return $ld_sysroot_available_saved
}
# Return true if we can build a program with the compiler.
# On some targets, CC might be defined, but libraries and startup
# code might be missing or require special options that the ld test
# harness doesn't know about.
proc check_compiler_available { } {
global compiler_available_saved
global CC
if {![info exists compiler_available_saved]} {
if { [which $CC] == 0 } {
set compiler_available_saved 0
return 0
}
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/compiler[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
puts $f "int main (void)"
puts $f "{"
puts $f " return 0; "
puts $f "}"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set compiler_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $compiler_available_saved
}
# Returns 1 if plugin is enabled in gcc. Returns 0 otherwise.
proc check_gcc_plugin_enabled { } {
global CC
if {![info exists CC]} {
set CC [find_gcc]
}
if { $CC == ""} {
return 0
}
# Filter out -Wl, options.
regsub -all -- "-Wl,\[^ ^\t\]+" $CC "" cc_cmd
set state [remote_exec host $cc_cmd -v]
if { [lindex $state 0] != 0 } {
return 0;
}
for { set i 1 } { $i < [llength $state] } { incr i } {
set v [lindex $state $i]
if { [ string match "*--disable-plugin*" $v ] } {
verbose "plugin is disabled by $v"
return 0;
}
}
return 1;
}
# Returns true if the target compiler supports LTO
proc check_lto_available { } {
global lto_available_saved
global CC
if {![info exists lto_available_saved]} {
if { ![check_gcc_plugin_enabled] } {
set lto_available_saved 0
return 0
}
# This test will hide LTO bugs in ld. Since GCC 4.9 adds
# -ffat-lto-objects, we always run LTO tests on Linux with
# GCC 4.9 or newer.
if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
set lto_available_saved 1
return 1
}
# Check if gcc supports -flto -fuse-linker-plugin
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/lto[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
puts $f "int main() { return 0; }"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -fuse-linker-plugin $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $lto_available_saved
}
# Returns true if the target compiler supports LTO -ffat-lto-objects
proc check_lto_fat_available { } {
global lto_fat_available_saved
global CC
if {![info exists lto_fat_available_saved]} {
if { ![check_gcc_plugin_enabled] } {
set lto_fat_available_saved 0
return 0
}
# This test will hide LTO bugs in ld. Since GCC 4.9 adds
# -ffat-lto-objects, we always run LTO tests on Linux with
# GCC 4.9 or newer.
if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
set lto_fat_available_saved 1
return 1
}
# Check if gcc supports -flto -fuse-linker-plugin
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/lto[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
puts $f "int main() { return 0; }"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set lto_fat_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $lto_fat_available_saved
}
# Returns true if the target compiler supports LTO and -shared
proc check_lto_shared_available { } {
global lto_shared_available_saved
global CC
if {![info exists lto_shared_available_saved]} {
if { ![check_gcc_plugin_enabled] } {
set lto_shared_available_saved 0
return 0
}
# This test will hide LTO bugs in ld. Since GCC 4.9 adds
# -ffat-lto-objects, we always run LTO tests on Linux with
# GCC 4.9 or newer.
if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
set lto_shared_available_saved 1
return 1
}
# Check if gcc supports -flto -fuse-linker-plugin -shared
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/lto_shared[pid]"
set src ${basename}.c
set output ${basename}.so
set f [open $src "w"]
puts $f ""
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set lto_shared_available_saved [run_host_cmd_yesno "$CC" "$flags -shared -fPIC -flto -fuse-linker-plugin $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $lto_shared_available_saved
}
# Check if the assembler supports CFI statements.
proc check_as_cfi { } {
global check_as_cfi_result
global as
if [info exists check_as_cfi_result] {
return $check_as_cfi_result
}
set as_file "tmpdir/check_as_cfi.s"
set as_fh [open $as_file w 0666]
puts $as_fh "# Generated file. DO NOT EDIT"
puts $as_fh "\t.cfi_startproc"
puts $as_fh "\t.cfi_endproc"
close $as_fh
remote_download host $as_file
verbose -log "Checking CFI support:"
set success [ld_assemble $as $as_file "/dev/null"]
#remote_file host delete $as_file
set check_as_cfi_result $success
return $success
}
# Returns true if IFUNC works.
proc check_ifunc_available { } {
global ifunc_available_saved
global CC
if {![info exists ifunc_available_saved]} {
if { ![check_compiler_available] } {
set ifunc_available_saved 0
return 0
}
# Check if gcc supports -flto -fuse-linker-plugin
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/ifunc[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
puts $f "extern int library_func2 (void);"
puts $f "int main (void)"
puts $f "{"
puts $f " if (library_func2 () != 2) __builtin_abort ();"
puts $f " return 0; "
puts $f "}"
puts $f "static int library_func1 (void) {return 2; }"
puts $f "void *foo (void) __asm__ (\"library_func2\");"
puts $f "void *foo (void) { return library_func1; }"
puts $f "__asm__(\".type library_func2, %gnu_indirect_function\");"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set ifunc_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
if { [isnative] && $ifunc_available_saved == 1 } {
set ifunc_available_saved [run_host_cmd_yesno "$output" ""]
}
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $ifunc_available_saved
}
# Returns true if ifunc attribute works.
proc check_ifunc_attribute_available { } {
global ifunc_attribute_available_saved
global CC
if {![info exists ifunc_attribute_available_saved]} {
if { ![check_compiler_available] } {
set ifunc_attribute_available_saved 0
return 0
}
# Check if gcc supports -flto -fuse-linker-plugin
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/ifunc[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
puts $f "extern int library_func2 (void) __attribute__ ((ifunc (\"foo\")));"
puts $f "int main (void)"
puts $f "{"
puts $f " if (library_func2 () != 2) __builtin_abort ();"
puts $f " return 0; "
puts $f "}"
puts $f "static int library_func1 (void) {return 2; }"
puts $f "void *foo (void) { return library_func1; }"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set ifunc_attribute_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
if { [isnative] && $ifunc_attribute_available_saved == 1 } {
set ifunc_attribute_available_saved [run_host_cmd_yesno "$output" ""]
}
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $ifunc_attribute_available_saved
}
# Return true if libdl is supported.
proc check_libdl_available { } {
global libdl_available_saved
global CC
if {![info exists libdl_available_saved]} {
if { ![check_compiler_available] } {
set libdl_available_saved 0
return 0
}
set basename "tmpdir/dl_avail_test[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
# Sample test file.
puts $f "#include <dlfcn.h>"
puts $f "int main (void)"
puts $f "{"
puts $f " dlopen (\"dummy.so\", RTLD_NOW);"
puts $f " return 0; "
puts $f "}"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set libdl_available_saved [run_host_cmd_yesno "$CC" "$src -o $output -ldl"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $libdl_available_saved
}
# Returns true if GNU2 TLS works.
proc check_gnu2_tls_available { } {
global gnu2_tls_available_saved
global CC
global GNU2_CFLAGS
if {![info exists gnu2_tls_available_saved]} {
if { ![check_compiler_available] || "$GNU2_CFLAGS" == "" } {
set gnu2_tls_available_saved 0
return 0
}
# Check if GNU2 TLS works.
set flags "$GNU2_CFLAGS"
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/gnu2_tls[pid]"
set src1 ${basename}1.c
set output1 ${basename}.so
set f [open $src1 "w"]
puts $f "extern __thread int zzz;"
puts $f "int foo (void)"
puts $f "{"
puts $f " return zzz;"
puts $f "}"
close $f
if [is_remote host] {
set src1 [remote_download host $src1]
}
set src2 ${basename}2.c
set output2 ${basename}.exe
set f [open $src2 "w"]
puts $f "__thread int zzz = 20;"
puts $f "extern int foo (void);"
puts $f "int main (void)"
puts $f "{"
puts $f " if (foo () != 20) __builtin_abort ();"
puts $f " return 0; "
puts $f "}"
close $f
if [is_remote host] {
set src2 [remote_download host $src2]
}
set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "-fPIC -shared $flags $src1 -o $output1"]
if { $gnu2_tls_available_saved == 1 } {
set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "$flags $src2 $output1 -o $output2"]
if { $gnu2_tls_available_saved == 1 } {
set gnu2_tls_available_saved [run_host_cmd_yesno "$output2" ""]
}
}
remote_file host delete $src1
remote_file host delete $output1
remote_file host delete $src2
remote_file host delete $output2
file delete $src1 $src2
}
return $gnu2_tls_available_saved
}
# Compile a C source file, with the specified additional_flags.
proc compile_one_cc { src output additional_flags } {
global CC
global CFLAGS
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
if [is_remote host] {
set src [remote_download host $src]
}
return [run_host_cmd_yesno "$CC" "$flags $CFLAGS $additional_flags $src -o $output"]
}
# Returns true if the target compiler supports -gt
proc check_ctf_available { } {
global ctf_available_saved
if {![info exists ctf_available_saved]} {
if { ![check_compiler_available] } {
set ctf_available_saved 0
} else {
set basename "tmpdir/ctf_available[pid]"
set src ${basename}.c
set output ${basename}.o
set f [open $src "w"]
puts $f "int main() { return 0; }"
close $f
set ctf_available_saved [compile_one_cc $src $output "-gt -c"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
}
return $ctf_available_saved
}
proc skip_ctf_tests { } {
global enable_libctf
if {$enable_libctf eq "no"} {
return 1
}
if [check_ctf_available] {
return 0
}
return 1
}