| # Support routines for LD testsuite. |
| # Copyright (C) 1994-2021 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. |
| |
| load_file $srcdir/../../binutils/testsuite/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_FOR_TARGET |
| |
| if {![info exists CC_FOR_TARGET]} { |
| set CC_FOR_TARGET [find_gcc] |
| } |
| if { $CC_FOR_TARGET == "" } { |
| return 0 |
| } |
| # Filter out -Wl, options. |
| regsub -all -- "-Wl,\[^ ^\t\]+" $CC_FOR_TARGET "" 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] || |
| [string match "clang*" $gccexe]} then { |
| set gccflags "$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 ver "-Wl,--version" |
| if [check_lto_available] { |
| set ver "-fno-lto $ver" |
| } |
| set gcc_ld_version_message [run_host_cmd "$prog" "$gccflags $ver"] |
| if {[string first $ld_version_message $gcc_ld_version_message] < 0} { |
| perror "************************************************************************" |
| perror "Your compiler apparently ignores -B when choosing ld." |
| set gcc_v [run_host_cmd "$prog" "$gccflags -v"] |
| if { [string first "--with-ld=" $gcc_v] >= 0 } { |
| perror "Hint: don't configure gcc using --with-ld (or --with-as)" |
| } |
| perror "You will not be testing the new ld in many of the following tests." |
| set gcc_ld_version [run_host_cmd "$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_FOR_TARGET |
| global CXXFLAGS_FOR_TARGET |
| 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_FOR_TARGET" |
| } else { |
| append flags " $CFLAGS_FOR_TARGET" |
| } |
| |
| if [board_info [target_info name] exists cflags] { |
| append flags " [board_info [target_info name] cflags]" |
| } |
| |
| if [board_info [target_info name] exists multilib_flags] { |
| append flags " [board_info [target_info name] multilib_flags]" |
| } |
| |
| set cmd "$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 "$exec_output" |
| return 0 |
| } |
| } |
| |
| # Assemble a file. |
| # |
| proc default_ld_assemble { as in_flags source object } { |
| global ASFLAGS |
| global host_triplet |
| global srcdir |
| global subdir |
| |
| if ![info exists ASFLAGS] { set ASFLAGS "" } |
| |
| set flags [big_or_little_endian] |
| if [info exists subdir] { |
| append flags " -I$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 [is_pecoff_format] { |
| 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 LDFLAGS |
| global as |
| global nm |
| global ar |
| global objdump |
| global READELF |
| global srcdir |
| global subdir |
| global env |
| global CC_FOR_TARGET |
| global CFLAGS_FOR_TARGET |
| global runtests |
| global exec_output |
| |
| set ld_extra_opt $LDFLAGS |
| if [check_relro_support] { |
| append 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_unsupported 0 |
| set failed 0 |
| set maybe_failed 0 |
| set ld_output "" |
| |
| # 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 "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]]" |
| |
| if { [file extension $src_file] == ".bz2" } { |
| set objfile tmpdir/[file rootname $src_file] |
| set unbzip2 "system \"bzip2 -dc $srcdir/$subdir/$src_file > $objfile\"" |
| send_log "$unbzip2\n" |
| catch "$unbzip2" exec_output |
| if ![string match "" $exec_output] then { |
| send_log "$exec_output\n" |
| set is_unsupported 1 |
| break |
| } |
| } else { |
| set objfile "tmpdir/$fileroot.o" |
| if { [file extension $src_file] == ".c" } { |
| set as_file "tmpdir/$fileroot.s" |
| if ![ld_compile "$CC_FOR_TARGET -S $CFLAGS_FOR_TARGET $cflags" $srcdir/$subdir/$src_file $as_file] { |
| set is_unsupported 1 |
| break |
| } |
| } else { |
| set as_file "$srcdir/$subdir/$src_file" |
| } |
| if ![ld_assemble $as "$as_options $as_file" $objfile] { |
| set failed 1 |
| break |
| } |
| } |
| lappend objfiles $objfile |
| } |
| |
| # Catch assembler errors. |
| if { $failed } { |
| fail $testname |
| continue |
| } |
| # Catch compiler errors. |
| if { $is_unsupported } { |
| unsupported $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" |
| } |
| |
| set is_unresolved 0 |
| 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_FOR_TARGET |
| global CXX_FOR_TARGET |
| global CFLAGS_FOR_TARGET |
| global CXXFLAGS_FOR_TARGET |
| 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_FOR_TARGET -c $CXXFLAGS_FOR_TARGET $cflags" |
| } else { |
| set cmd "$CC_FOR_TARGET -c $CFLAGS_FOR_TARGET $cflags" |
| } |
| if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] { |
| set failed 1 |
| break |
| } |
| } |
| if { $failed != 0 } { |
| unsupported $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_FOR_TARGET |
| } else { |
| set link_proc ld_link |
| set link_cmd $CC_FOR_TARGET |
| } |
| |
| 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_FOR_TARGET |
| global CXX_FOR_TARGET |
| global CFLAGS_FOR_TARGET |
| global CXXFLAGS_FOR_TARGET |
| 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_FOR_TARGET -c $CXXFLAGS_FOR_TARGET $cflags" |
| } else { |
| set cmd "$CC_FOR_TARGET -c $CFLAGS_FOR_TARGET $cflags" |
| } |
| if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] { |
| set failed 1 |
| break |
| } |
| } |
| if { $failed != 0 } { |
| unsupported $testname |
| continue |
| } |
| |
| # Clear error and warning counts. |
| reset_vars |
| |
| if { [ string match "c++" $lang ] } { |
| set cc_cmd $CXX_FOR_TARGET |
| } else { |
| set cc_cmd $CC_FOR_TARGET |
| } |
| |
| 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 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_FOR_TARGET |
| |
| if {![info exists compiler_available_saved]} { |
| if { [which $CC_FOR_TARGET] == 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_FOR_TARGET" "$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_FOR_TARGET |
| |
| if {![info exists CC_FOR_TARGET]} { |
| set CC_FOR_TARGET [find_gcc] |
| } |
| if { $CC_FOR_TARGET == ""} { |
| return 0 |
| } |
| # Filter out -Wl, options. |
| regsub -all -- "-Wl,\[^ ^\t\]+" $CC_FOR_TARGET "" 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_FOR_TARGET |
| |
| 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_FOR_TARGET" "$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_FOR_TARGET |
| |
| 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_FOR_TARGET" "$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_FOR_TARGET |
| |
| 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_FOR_TARGET" "$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_FOR_TARGET |
| |
| 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_FOR_TARGET" "$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_FOR_TARGET |
| |
| 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_FOR_TARGET" "$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_FOR_TARGET |
| |
| 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_FOR_TARGET" "$src -o $output -ldl"] |
| remote_file host delete $src |
| remote_file host delete $output |
| file delete $src |
| } |
| return $libdl_available_saved |
| } |
| |
| # Returns true if GNU2 TLS works. |
| |
| proc check_gnu2_tls_available { } { |
| global gnu2_tls_available_saved |
| global CC_FOR_TARGET |
| global GNU2_CFLAGS |
| |
| if {![info exists gnu2_tls_available_saved]} { |
| if { ![check_compiler_available] || "$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_FOR_TARGET" "-fPIC -shared $flags $src1 -o $output1"] |
| if { $gnu2_tls_available_saved == 1 } { |
| set gnu2_tls_available_saved [run_host_cmd_yesno "$CC_FOR_TARGET" "$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_FOR_TARGET |
| global CFLAGS_FOR_TARGET |
| |
| 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_FOR_TARGET" "$flags $CFLAGS_FOR_TARGET $additional_flags $src -o $output"] |
| } |
| |
| # Returns true if the target compiler supports -gctf |
| 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 "-gctf -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 |
| } |