# Support routines for LD testsuite.
-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
+# Copyright (C) 1994-2019 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# Returns 0 otherwise.
#
proc at_least_gcc_version { major minor } {
+ global CC
if {![info exists CC]} {
set CC [find_gcc]
}
if { $CC == "" } {
- return 0
+ return 0
}
set state [remote_exec host $CC --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 "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?"
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"
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 $command"
proc run_host_cmd_yesno { prog command } {
global exec_output
+ global errcnt warncnt
set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
+ # Ignore error and warning.
+ set errcnt 0
+ set warncnt 0
if [string match "" $exec_output] then {
return 1;
}
}
}
-# Look for big-endian or little-endian switches in the multlib
-# options and translate these into a -EB or -EL switch. Note
-# we cannot rely upon proc process_multilib_options to do this
-# for us because for some targets the compiler does not support
-# -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
-# the site.exp file will include the switch "-mbig-endian"
-# (rather than "big-endian") which is not detected by proc
-# process_multilib_options.
-#
-proc big_or_little_endian {} {
-
- if [board_info [target_info name] exists multilib_flags] {
- set tmp_flags " [board_info [target_info name] multilib_flags]"
-
- foreach x $tmp_flags {
- case $x in {
- {*big*endian eb EB -eb -EB -mb -meb} {
- set flags " -EB"
- return $flags
- }
- {*little*endian el EL -el -EL -ml -mel} {
- set flags " -EL"
- return $flags
- }
- }
- }
- }
-
- set flags ""
- return $flags
-}
-
-# Link a program using ld.
+# Link a program using ld
#
proc default_ld_link { ld target objects } {
- global HOSTING_EMU
- global HOSTING_CRT0
- global HOSTING_SCRT0
- global HOSTING_LIBS
- global HOSTING_SLIBS
- global LIBS
- global host_triplet
- global link_output
- global exec_output
-
- if { [ string match "* -pie *" $objects ] } {
- set objs "$HOSTING_SCRT0 $objects"
- set libs "$LIBS $HOSTING_SLIBS"
- } else {
- set objs "$HOSTING_CRT0 $objects"
- set libs "$LIBS $HOSTING_LIBS"
- }
-
- if [is_endian_output_format $objects] then {
- set flags [big_or_little_endian]
- } else {
- set flags ""
- }
-
- remote_file host delete $target
-
- return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
-}
-
-# Link a program using ld, without including any libraries.
-#
-proc default_ld_simple_link { ld target objects } {
global host_triplet
global exec_output
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
# Define various symbols needed when not linking against all
# target libs.
-proc ld_simple_link_defsyms {} {
+proc ld_link_defsyms {} {
set flags "--defsym __stack_chk_fail=0"
append flags " --defsym __gccmain=0"
}
- # Windows targets need __main, prefixed with underscore.
+ # Windows targets need __main, some prefixed with underscore.
if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
- append flags " --defsym ___main=0"
+ append flags " --defsym __main=0 --defsym ___main=0"
}
# PowerPC EABI code calls __eabi.
return $flags
}
-# run_dump_test FILE (optional:) EXTRA_OPTIONS
-# Copied from gas testsuite, tweaked and further extended.
-#
-# Assemble a .s file, then run some utility on it and check the output.
-#
-# There should be an assembly language file named FILE.s in the test
-# suite directory, and a pattern file called FILE.d. `run_dump_test'
-# will assemble FILE.s, run some tool like `objdump', `objcopy', or
-# `nm' on the .o file to produce textual output, and then analyze that
-# with regexps. The FILE.d file specifies what program to run, and
-# what to expect in its output.
-#
-# The FILE.d file begins with zero or more option lines, which specify
-# flags to pass to the assembler, the program to run to dump the
-# assembler's output, and the options it wants. The option lines have
-# the syntax:
-#
-# # OPTION: VALUE
-#
-# OPTION is the name of some option, like "name" or "objdump", and
-# VALUE is OPTION's value. The valid options are described below.
-# Whitespace is ignored everywhere, except within VALUE. The option
-# list ends with the first line that doesn't match the above syntax
-# (hmm, not great for error detection).
-#
-# The optional EXTRA_OPTIONS argument to `run_dump_test' is a list of
-# two-element lists. The first element of each is an option name, and
-# the second additional arguments to be added on to the end of the
-# option list as given in FILE.d. (If omitted, no additional options
-# are added.)
-#
-# The interesting options are:
-#
-# name: TEST-NAME
-# The name of this test, passed to DejaGNU's `pass' and `fail'
-# commands. If omitted, this defaults to FILE, the root of the
-# .s and .d files' names.
-#
-# as: FLAGS
-# When assembling, pass FLAGS to the assembler.
-# If assembling several files, you can pass different assembler
-# options in the "source" directives. See below.
-#
-# ld: FLAGS
-# Link assembled files using FLAGS, in the order of the "source"
-# directives, when using multiple files.
-#
-# ld_after_inputfiles: FLAGS
-# Similar to "ld", but put after all input files.
-#
-# objcopy_objects: FLAGS
-# Run objcopy with the specified flags after assembling any source
-# that has the special marker RUN_OBJCOPY in the source specific
-# flags.
-#
-# objcopy_linked_file: FLAGS
-# Run objcopy on the linked file with the specified flags.
-# This lets you transform the linked file using objcopy, before the
-# result is analyzed by an analyzer program specified below (which
-# may in turn *also* be objcopy).
-#
-# PROG: PROGRAM-NAME
-# The name of the program to run to analyze the .o file produced
-# by the assembler or the linker output. This can be omitted;
-# run_dump_test will guess which program to run by seeing which of
-# the flags options below is present.
-#
-# objdump: FLAGS
-# nm: FLAGS
-# objcopy: FLAGS
-# Use the specified program to analyze the assembler or linker
-# output file, and pass it FLAGS, in addition to the output name.
-# Note that they are run with LC_ALL=C in the environment to give
-# consistent sorting of symbols.
-#
-# source: SOURCE [FLAGS]
-# Assemble the file SOURCE.s using the flags in the "as" directive
-# and the (optional) FLAGS. If omitted, the source defaults to
-# FILE.s.
-# This is useful if several .d files want to share a .s file.
-# More than one "source" directive can be given, which is useful
-# when testing linking.
-#
-# dump: DUMP
-# Match against DUMP.d. If omitted, this defaults to FILE.d. This
-# is useful if several .d files differ by options only. Options are
-# always read from FILE.d.
-#
-# xfail: TARGET
-# The test is expected to fail on TARGET. This may occur more than
-# once.
-#
-# target: TARGET
-# Only run the test for TARGET. This may occur more than once; the
-# target being tested must match at least one. You may provide target
-# name "cfi" for any target supporting the CFI statements.
-#
-# notarget: TARGET
-# Do not run the test for TARGET. This may occur more than once;
-# the target being tested must not match any of them.
-#
-# error: REGEX
-# An error with message matching REGEX must be emitted for the test
-# to pass. The PROG, objdump, nm and objcopy options have no
-# meaning and need not supplied if this is present. Multiple "error"
-# directives append to the expected linker error message.
-#
-# warning: REGEX
-# Expect a linker warning matching REGEX. It is an error to issue
-# both "error" and "warning". Multiple "warning" directives
-# append to the expected linker warning message.
-#
-# Each option may occur at most once unless otherwise mentioned.
-#
-# After the option lines come regexp lines. `run_dump_test' calls
-# `regexp_diff' to compare the output of the dumping tool against the
-# regexps in FILE.d. `regexp_diff' is defined in binutils-common.exp;
-# see further comments there.
-#
-proc run_dump_test { name {extra_options {}} } {
- global subdir srcdir
- global OBJDUMP NM AS OBJCOPY READELF LD
- global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
- global host_triplet runtests
- global env verbose
-
- if [string match "*/*" $name] {
- set file $name
- set name [file tail $name]
- } else {
- set file "$srcdir/$subdir/$name"
- }
-
- if ![runtest_file_p $runtests $name] then {
- return
- }
-
- set opt_array [slurp_options "${file}.d"]
- if { $opt_array == -1 } {
- perror "error reading options from $file.d"
- unresolved $subdir/$name
- return
- }
- set dumpfile tmpdir/dump.out
- set run_ld 0
- set run_objcopy 0
- set opts(as) {}
- set opts(ld) {}
- set opts(ld_after_inputfiles) {}
- set opts(xfail) {}
- set opts(target) {}
- set opts(notarget) {}
- set opts(objdump) {}
- set opts(nm) {}
- set opts(objcopy) {}
- set opts(readelf) {}
- set opts(name) {}
- set opts(PROG) {}
- set opts(source) {}
- set opts(dump) {}
- set opts(error) {}
- set opts(warning) {}
- set opts(objcopy_linked_file) {}
- set opts(objcopy_objects) {}
-
- foreach i $opt_array {
- set opt_name [lindex $i 0]
- set opt_val [lindex $i 1]
- if ![info exists opts($opt_name)] {
- perror "unknown option $opt_name in file $file.d"
- unresolved $subdir/$name
- return
- }
-
- switch -- $opt_name {
- xfail {}
- target {}
- notarget {}
- warning {}
- error {}
- source {
- # Move any source-specific as-flags to a separate list to
- # simplify processing.
- if { [llength $opt_val] > 1 } {
- lappend asflags [lrange $opt_val 1 end]
- set opt_val [lindex $opt_val 0]
- } else {
- lappend asflags {}
- }
- }
- default {
- if [string length $opts($opt_name)] {
- perror "option $opt_name multiply set in $file.d"
- unresolved $subdir/$name
- return
- }
-
- # A single "# ld:" with no options should do the right thing.
- if { $opt_name == "ld" } {
- set run_ld 1
- }
- # Likewise objcopy_linked_file.
- if { $opt_name == "objcopy_linked_file" } {
- set run_objcopy 1
- }
- }
- }
- if { $opt_name == "as" || $opt_name == "ld" } {
- set opt_val [subst $opt_val]
- }
-
- # Append differently whether it's a message (without space) or
- # an option or list (with space).
- switch -- $opt_name {
- warning -
- error {
- append opts($opt_name) $opt_val
- }
- default {
- set opts($opt_name) [concat $opts($opt_name) $opt_val]
- }
- }
- }
-
- foreach i $extra_options {
- set opt_name [lindex $i 0]
- set opt_val [lindex $i 1]
- if ![info exists opts($opt_name)] {
- perror "unknown option $opt_name given in extra_opts"
- unresolved $subdir/$name
- return
- }
- # Add extra option to end of existing option, adding space
- # if necessary.
- if { ![regexp "warning|error" $opt_name]
- && [string length $opts($opt_name)] } {
- append opts($opt_name) " "
- }
- append opts($opt_name) $opt_val
- }
-
- foreach opt { as ld } {
- regsub {\[big_or_little_endian\]} $opts($opt) \
- [big_or_little_endian] opts($opt)
- }
-
- # Decide early whether we should run the test for this target.
- if { [llength $opts(target)] > 0 } {
- set targmatch 0
- foreach targ $opts(target) {
- if [istarget $targ] {
- set targmatch 1
- break
- }
- }
- if { $targmatch == 0 } {
- return
- }
- }
- foreach targ $opts(notarget) {
- if [istarget $targ] {
- return
- }
- }
-
- set program ""
- # It's meaningless to require an output-testing method when we
- # expect an error.
- if { $opts(error) == "" } {
- if {$opts(PROG) != ""} {
- switch -- $opts(PROG) {
- objdump { set program objdump }
- nm { set program nm }
- objcopy { set program objcopy }
- readelf { set program readelf }
- default
- { perror "unrecognized program option $opts(PROG) in $file.d"
- unresolved $subdir/$name
- return }
- }
- } else {
- # Guess which program to run, by seeing which option was specified.
- foreach p {objdump objcopy nm readelf} {
- if {$opts($p) != ""} {
- if {$program != ""} {
- perror "ambiguous dump program in $file.d"
- unresolved $subdir/$name
- return
- } else {
- set program $p
- }
- }
- }
- }
- if { $program == "" && $opts(warning) == "" } {
- perror "dump program unspecified in $file.d"
- unresolved $subdir/$name
- return
- }
- }
-
- if { $opts(name) == "" } {
- set testname "$subdir/$name"
- } else {
- set testname $opts(name)
- }
-
- if { $opts(source) == "" } {
- set sourcefiles [list ${file}.s]
- set asflags [list ""]
- } else {
- set sourcefiles {}
- foreach sf $opts(source) {
- if { [string match "/*" $sf] } {
- lappend sourcefiles "$sf"
- } else {
- lappend sourcefiles "$srcdir/$subdir/$sf"
- }
- }
- }
-
- if { $opts(dump) == "" } {
- set dfile ${file}.d
- } else {
- set dfile $srcdir/$subdir/$opts(dump)
- }
-
- if { [string match "*--compress-debug-sections*" $opts(as)] \
- && ![is_zlib_supported] } {
- unsupported $testname
- return
- }
-
- # Time to setup xfailures.
- foreach targ $opts(xfail) {
- setup_xfail $targ
- }
-
- # Assemble each file.
- set objfiles {}
- for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
- set sourcefile [lindex $sourcefiles $i]
- set sourceasflags [lindex $asflags $i]
- set run_objcopy_objects 0
-
- if { [string match "*RUN_OBJCOPY*" $sourceasflags] } {
- set run_objcopy_objects 1
- }
- regsub "RUN_OBJCOPY" $sourceasflags "" sourceasflags
-
- set objfile "tmpdir/dump$i.o"
- catch "exec rm -f $objfile" exec_output
- lappend objfiles $objfile
- set cmd "$AS $ASFLAGS $opts(as) $sourceasflags -o $objfile $sourcefile"
-
- send_log "$cmd\n"
- set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
- remote_upload host "ld.tmp"
- set comp_output [prune_warnings [file_contents "ld.tmp"]]
- remote_file host delete "ld.tmp"
- remote_file build delete "ld.tmp"
-
- if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
- send_log "$comp_output\n"
- verbose "$comp_output" 3
-
- set exitstat "succeeded"
- if { $cmdret != 0 } { set exitstat "failed" }
- verbose -log "$exitstat with: <$comp_output>"
- fail $testname
- return
- }
-
- if { $run_objcopy_objects } {
- set cmd "$OBJCOPY $opts(objcopy_objects) $objfile"
-
- send_log "$cmd\n"
- set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] \
- "" "/dev/null" "objcopy.tmp"]
- remote_upload host "objcopy.tmp"
- set comp_output [prune_warnings [file_contents "objcopy.tmp"]]
- remote_file host delete "objcopy.tmp"
- remote_file build delete "objcopy.tmp"
-
- if { [lindex $cmdret 0] != 0 \
- || ![string match "" $comp_output] } {
- send_log "$comp_output\n"
- verbose "$comp_output" 3
-
- set exitstat "succeeded"
- if { $cmdret != 0 } { set exitstat "failed" }
- verbose -log "$exitstat with: <$comp_output>"
- fail $testname
- return
- }
- }
- }
-
- set expmsg $opts(error)
- if { $opts(warning) != "" } {
- if { $expmsg != "" } {
- perror "$testname: mixing error and warning test-directives"
- return
- }
- set expmsg $opts(warning)
- }
-
- # Perhaps link the file(s).
- if { $run_ld } {
- set objfile "tmpdir/dump"
- catch "exec rm -f $objfile" exec_output
-
- # Add -L$srcdir/$subdir so that the linker command can use
- # linker scripts in the source directory.
- set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
- $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
-
- send_log "$cmd\n"
- set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
- remote_upload host "ld.tmp"
- set comp_output [file_contents "ld.tmp"]
- remote_file host delete "ld.tmp"
- remote_file build delete "ld.tmp"
- set cmdret [lindex $cmdret 0]
-
- if { $cmdret == 0 && $run_objcopy } {
- set infile $objfile
- set objfile "tmpdir/dump1"
- remote_file host delete $objfile
-
- # Note that we don't use OBJCOPYFLAGS here; any flags must be
- # explicitly specified.
- set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
-
- send_log "$cmd\n"
- set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
- remote_upload host "ld.tmp"
- append comp_output [file_contents "ld.tmp"]
- remote_file host delete "ld.tmp"
- remote_file build delete "ld.tmp"
- set cmdret [lindex $cmdret 0]
- }
-
- regsub "\n$" $comp_output "" comp_output
- if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
- set exitstat "succeeded"
- if { $cmdret != 0 } { set exitstat "failed" }
- verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
- send_log "$comp_output\n"
- verbose "$comp_output" 3
-
- if { ($expmsg == "") == ($comp_output == "") \
- && [regexp $expmsg $comp_output] \
- && (($cmdret == 0) == ($opts(error) == "")) } {
- # We have the expected output from ld.
- if { $opts(error) != "" || $program == "" } {
- pass $testname
- return
- }
- } else {
- verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
- fail $testname
- return
- }
- }
- } else {
- set objfile "tmpdir/dump0.o"
- }
-
- # We must not have expected failure if we get here.
- if { $opts(error) != "" } {
- fail $testname
- return
- }
-
- set progopts1 $opts($program)
- eval set progopts \$[string toupper $program]FLAGS
- eval set binary \$[string toupper $program]
-
- if { ![is_remote host] && [which $binary] == 0 } {
- untested $testname
- return
- }
-
- if { $progopts1 == "" } { set $progopts1 "-r" }
- verbose "running $binary $progopts $progopts1" 3
-
- # Objcopy, unlike the other two, won't send its output to stdout,
- # so we have to run it specially.
- set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
- if { $program == "objcopy" } {
- set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
- }
-
- # Ensure consistent sorting of symbols
- if {[info exists env(LC_ALL)]} {
- set old_lc_all $env(LC_ALL)
- }
- set env(LC_ALL) "C"
- send_log "$cmd\n"
- set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
- set cmdret [lindex $cmdret 0]
- remote_upload host "ld.tmp"
- set comp_output [prune_warnings [file_contents "ld.tmp"]]
- remote_file host delete "ld.tmp"
- remote_file build delete "ld.tmp"
- if {[info exists old_lc_all]} {
- set env(LC_ALL) $old_lc_all
- } else {
- unset env(LC_ALL)
- }
- if { $cmdret != 0 || $comp_output != "" } {
- send_log "exited abnormally with $cmdret, output:$comp_output\n"
- fail $testname
- return
- }
-
- if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
- if { [regexp_diff $dumpfile "${dfile}"] } then {
- fail $testname
- if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
- return
- }
-
- pass $testname
-}
-
-proc slurp_options { file } {
- # If options_regsub(foo) is set to {a b}, then the contents of a
- # "#foo:" line will have regsub -all applied to replace a with b.
- global options_regsub
-
- if [catch { set f [open $file r] } x] {
- #perror "couldn't open `$file': $x"
- perror "$x"
- return -1
- }
- set opt_array {}
- # whitespace expression
- set ws {[ ]*}
- set nws {[^ ]*}
- # whitespace is ignored anywhere except within the options list;
- # option names are alphabetic plus underscore only.
- set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
- while { [gets $f line] != -1 } {
- set line [string trim $line]
- # Whitespace here is space-tab.
- if [regexp $pat $line xxx opt_name opt_val] {
- # match!
- if [info exists options_regsub($opt_name)] {
- set subst $options_regsub($opt_name)
- regsub -all -- [lindex $subst 0] $opt_val [lindex $subst 1] \
- opt_val
- }
- lappend opt_array [list $opt_name $opt_val]
- } else {
- break
- }
- }
- close $f
- return $opt_array
-}
-
-proc file_contents { filename } {
- set file [open $filename r]
- set contents [read $file]
- close $file
- return $contents
-}
-
-proc set_file_contents { filename contents } {
- set file [open $filename w]
- puts $file "$contents"
- close $file
-}
-
# 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 $objects"]
+ set exec_output [run_host_cmd "$ar" "-rc $aropts $target $objects"]
set exec_output [prune_warnings $exec_output]
if [string match "" $exec_output] then {
# in all other cases, any output from the linker during linking is
# treated as a sign of an error and FAILs the test.
#
-proc run_ld_link_tests { ldtests } {
+# args is an optional list of target triplets to be xfailed.
+#
+proc run_ld_link_tests { ldtests args } {
global ld
global as
global nm
global CFLAGS
global runtests
global exec_output
+ global ld_elf_shared_opt
+
+ if { [is_elf_format] && [check_shared_lib_support] } {
+ set ld_extra_opt "$ld_elf_shared_opt"
+ } else {
+ set ld_extra_opt ""
+ }
foreach testitem $ldtests {
set testname [lindex $testitem 0]
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]
if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
set failed 1
}
- } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
+ } 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"
}
}
}
-# This definition is taken from an unreleased version of DejaGnu. Once
-# that version gets released, and has been out in the world for a few
-# months at least, it may be safe to delete this copy.
-if ![string length [info proc prune_warnings]] {
- #
- # prune_warnings -- delete various system verbosities from TEXT
- #
- # An example is:
- # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
- #
- # Sites with particular verbose os's may wish to override this in site.exp.
- #
- proc prune_warnings { text } {
- # This is from sun4's. Do it for all machines for now.
- # The "\\1" is to try to preserve a "\n" but only if necessary.
- regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
-
- # It might be tempting to get carried away and delete blank lines, etc.
- # Just delete *exactly* what we're ask to, and that's it.
- return $text
- }
-}
-
-# targets_to_xfail is a list of target triplets to be xfailed.
# ldtests contains test-items with 3 items followed by 1 lists, 2 items
# and 3 optional items:
# 0:name
-# 1:ld options
+# 1:ld leading options, placed before object files
# 2:assembler options
# 3:filenames of source files
# 4:name of output file
# 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 { targets_to_xfail ldtests } {
+proc run_ld_link_exec_tests { ldtests args } {
global ld
global as
global srcdir
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 {
- foreach target $targets_to_xfail {
- setup_xfail $target
- }
set testname [lindex $testitem 0]
set ld_options [lindex $testitem 1]
set as_options [lindex $testitem 2]
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
+ }
+
+ 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 $as_options"
set objfile "tmpdir/$fileroot.o"
lappend objfiles $objfile
- # We ignore warnings since some compilers may generate
- # incorrect section attributes and the assembler will warn
- # them.
if { [ string match "c++" $lang ] } {
- ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ set cmd "$CXX -c $CXXFLAGS $cflags"
} else {
- ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ set cmd "$CC -c $CFLAGS $cflags"
+ }
+ if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
+ set failed 1
+ break
}
}
+ if { $failed != 0 } {
+ unresolved $testname
+ continue
+ }
- # We have to use $CC to build PIE and shared library.
- if { [ string match "c" $lang ] } {
- set link_proc ld_simple_link
- set link_cmd $CC
+ if { [ string match "asm" $lang ] } {
+ set link_proc ld_link
+ set link_cmd $ld
} elseif { [ string match "c++" $lang ] } {
- set link_proc ld_simple_link
+ set link_proc ld_link
set link_cmd $CXX
- } elseif { [ string match "-shared" $ld_options ] \
- || [ string match "-pie" $ld_options ] } {
- set link_proc ld_simple_link
- set link_cmd $CC
} else {
set link_proc ld_link
- set link_cmd $ld
+ set link_cmd $CC
}
if { $binfile eq "tmpdir/" } {
# compile only
pass $testname
continue;
- } elseif ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
- set failed 1
+ } 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 { $failed == 0 } {
+ if { $failed == 0 && [isnative] } {
send_log "Running: $binfile > $binfile.out\n"
verbose "Running: $binfile > $binfile.out"
catch "exec $binfile > $binfile.out" exec_output
if { $failed != 0 } {
fail $testname
+ } elseif ![isnative] {
+ unsupported $testname
} else {
set errcnt 0
pass $testname
# 4:action and options.
# 5:name of output file
# 6:language (optional)
-# 7:linker warnings (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 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 actions [lindex $testitem 4]
set binfile tmpdir/[lindex $testitem 5]
set lang [lindex $testitem 6]
- set warnings [lindex $testitem 7]
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
+ }
+
+ #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 $src_files {
set objfile "tmpdir/$fileroot.o"
lappend objfiles $objfile
- # We ignore warnings since some compilers may generate
- # incorrect section attributes and the assembler will warn
- # them.
if { [ string match "c++" $lang ] } {
- ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ set cmd "$CXX -c $CXXFLAGS $cflags"
} else {
- ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ set cmd "$CC -c $CFLAGS $cflags"
+ }
+ if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
+ set failed 1
+ break
}
}
+ if { $failed != 0 } {
+ unresolved $testname
+ continue
+ }
# Clear error and warning counts.
reset_vars
# compile only
} elseif { [regexp ".*\\.a$" $binfile] } {
if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
- fail $testname
set failed 1
}
} else {
- if { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
- set failed 1
+ 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"
- # Check if exec_output is expected.
- if { $warnings != "" } then {
- verbose -log "returned with: <$exec_output>, expected: <$warnings>"
- if { [regexp $warnings $exec_output] } then {
- set failed 0
- } else {
+ 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 { $failed == 1 } {
- fail $testname
+ 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
+ }
}
}
{ set dump_prog $nm }
readelf
{ set dump_prog $READELF }
+ error {}
+ warning {}
+ error_output {}
+ warning_output {}
default
{
perror "Unrecognized action $action"
}
}
- if { $failed != 0 } {
+ if { $failed } {
fail $testname
- } elseif { $is_unresolved == 0 } {
- pass $testname
- } else {
+ } elseif { $is_unresolved } {
unresolved $testname
- continue
+ } else {
+ pass $testname
}
}
}
if {![info exists gc_sections_available_saved]} {
# Some targets don't support gc-sections despite whatever's
# advertised by ld's options.
- if { [istarget arc-*-*]
+ if { [istarget alpha-*-*]
+ || [istarget bpf-*-*]
|| [istarget d30v-*-*]
|| [istarget dlx-*-*]
- || [istarget i960-*-*]
- || [istarget pj*-*-*]
- || [istarget alpha-*-*]
|| [istarget hppa*64-*-*]
- || [istarget i370-*-*]
- || [istarget i860-*-*]
|| [istarget ia64-*-*]
|| [istarget mep-*-*]
|| [istarget mn10200-*-*]
- || [istarget *-*-cygwin]
- || [istarget *-*-mingw*] } {
+ || [istarget pj*-*-*]
+ || [istarget pru*-*-*]
+ || [istarget s12z-*-*]
+ || [istarget xgate-*-*] } {
set gc_sections_available_saved 0
return 0
}
return $gc_sections_available_saved
}
-# Returns true if -shared is supported on the target
-# Only used and accurate for ELF targets at the moment
-
-proc check_shared_lib_support { } {
- if {![istarget aarch64*-*-elf]
- && ![istarget arc-*-*]
- && ![istarget arm*-*-elf]
- && ![istarget avr-*-*]
- && ![istarget cr16-*-*]
- && ![istarget cris*-*-elf]
- && ![istarget crx-*-*]
- && ![istarget d10v-*-*]
- && ![istarget d30v-*-*]
- && ![istarget dlx-*-*]
- && ![istarget epiphany-*-*]
- && ![istarget fr30-*-*]
- && ![istarget frv-*-*]
- && ![istarget h8300-*-*]
- && ![istarget i860-*-*]
- && ![istarget i960-*-*]
- && ![istarget ip2k-*-*]
- && ![istarget iq2000-*-*]
- && ![istarget lm32-*-*]
- && ![istarget m32c-*-*]
- && ![istarget m32r-*-*]
- && ![istarget m6811-*-*]
- && ![istarget m6812-*-*]
- && ![istarget m68hc1*-*-*]
- && ![istarget mcore*-*-*]
- && ![istarget mep-*-*]
- && ![istarget microblaze-*-*]
- && ![istarget mips*-*-elf]
- && ![istarget mn10200-*-*]
- && ![istarget moxie-*-*]
- && ![istarget msp430-*-*]
- && ![istarget mt-*-*]
- && ![istarget nds32*-*-*]
- && ![istarget or1k*-*-*]
- && ![istarget pj-*-*]
- && ![istarget rl78-*-*]
- && ![istarget rx-*-*]
- && ![istarget spu-*-*]
- && ![istarget v850*-*-*]
- && ![istarget xstormy16-*-*]
- && ![istarget *-*-irix*]
- && ![istarget *-*-rtems] } {
+# Return true if target uses the generic_link_hash_table linker.
+proc is_generic { } {
+ if { [istarget "d30v-*-*"]
+ || [istarget "dlx-*-*"]
+ || [istarget "pj*-*-*"]
+ || [istarget "s12z-*-*"]
+ || [istarget "xgate-*-*"] } {
+ return 1
+ }
+ return 0
+}
+
+# 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
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 { [ string first "-plugin" $ld_output ] >= 0 } {
+ if { [ string first "-plugin PLUGIN" $ld_output ] >= 0 } {
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
+ }
+ set state [remote_exec host $CC -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 { [which $CC] == 0 } {
+ 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] {
set f [open $src "w"]
puts $f "int main() { return 0; }"
close $f
- remote_download host $src
- set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
+ 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 { [which $CC] == 0 } {
+ 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] {
set f [open $src "w"]
puts $f ""
close $f
- remote_download host $src
+ 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
return $success
}
-# Provide virtual target "cfi" for targets supporting CFI.
+# 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 $ifunc_attribute_available_saved
+}
+
+# Return true if libdl is supported.
+
+proc check_libdl_available { } {
+ global libdl_available_saved
+ global CC
-rename "istarget" "istarget_ld"
-proc istarget { target } {
- if {$target == "cfi"} {
- return [check_as_cfi]
+ 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 [istarget_ld $target]
+ return $gnu2_tls_available_saved
}
projects / deliverable / binutils-gdb.git / blobdiff