mirror of
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e6a6c7676a
LTO can be used to build binutils with $ CC="gcc -flto -ffat-lto-objects -Wl,--as-needed" CXX="g++ -flto -ffat-lto-objects -Wl,--as-needed" .../configure But not all linker tests are compatible with LTO. Pass -fno-lto to CC to disable LTO on linker tests by default. -flto is passed explicitly to CC in linker LTO tests. * testsuite/ld-elf/indirect.exp: Append -fno-lto to CC. * testsuite/ld-elfvers/vers.exp: Likewise. * testsuite/ld-elfweak/elfweak.exp: Likewise. * testsuite/ld-ifunc/ifunc.exp: Likewise. * testsuite/ld-plugin/lto.exp (no_lto): New. Add $no_lto to build pr15146c.so. * testsuite/lib/ld-lib.exp (at_least_gcc_version): Filter out -Wl,xxx options. (check_gcc_plugin_enabled): Likewise. (run_ld_link_exec_tests): Prepend -fno-lto to $cflags. (run_cc_link_tests): Likewise.
1642 lines
45 KiB
Plaintext
1642 lines
45 KiB
Plaintext
# Support routines for LD testsuite.
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# Copyright (C) 1994-2020 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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proc load_common_lib { name } {
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global srcdir
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load_file $srcdir/../../binutils/testsuite/lib/$name
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}
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load_common_lib binutils-common.exp
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# Returns 1 if the gcc for the target is at least version MAJOR.MINOR
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# Returns 0 otherwise.
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#
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proc at_least_gcc_version { major minor } {
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global CC
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if {![info exists CC]} {
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set CC [find_gcc]
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}
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if { $CC == "" } {
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return 0
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}
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# Filter out -Wl, options.
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regsub -all -- "-Wl,\[^ ^\t\]+" $CC "" cc_cmd
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set state [remote_exec host $cc_cmd --version]
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if { [lindex $state 0] != 0 } {
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return 0;
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}
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set tmp "[lindex $state 1]\n"
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# Look for (eg) 4.6.1 in the version output.
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set ver_re "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?"
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regexp $ver_re $tmp fred maj min
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verbose "gcc version: $tmp"
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if { ![info exists maj] || ![info exists min] } then {
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perror "can't decipher gcc version number, fix the framework!"
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return 0
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}
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verbose "major gcc version is $maj, want at least $major"
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if { $maj == $major } then {
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verbose "minor gcc version is $min, want at least $minor"
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return [expr $min >= $minor]
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} else {
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return [expr $maj > $major]
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}
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}
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# Extract and print the version number of ld.
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#
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proc default_ld_version { ld } {
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global host_triplet
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if { ![is_remote host] && [which $ld] == 0 } then {
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perror "$ld does not exist"
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exit 1
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}
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remote_exec host "$ld --version" "" "/dev/null" "ld.version"
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remote_upload host "ld.version"
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set tmp [prune_warnings [file_contents "ld.version"]]
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remote_file build delete "ld.version"
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remote_file host delete "ld.version"
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regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
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if [info exists number] then {
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clone_output "$ld $number\n"
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}
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}
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proc run_host_cmd { prog command } {
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global link_output
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global gcc_B_opt
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global ld_L_opt
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global gcc_ld_B_opt_tested
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global ld
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if { ![is_remote host] && [which "$prog"] == 0 } then {
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perror "$prog does not exist"
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return 0
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}
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# If we are compiling with gcc, we want to add gcc_B_opt and
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# ld_L_opt to flags. However, if $prog already has -B options,
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# which might be the case when running gcc out of a build
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# directory, we want our -B options to come first.
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set gccexe $prog
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set gccparm [string first " " $gccexe]
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set gccflags ""
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if { $gccparm > 0 } then {
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set gccflags [string range $gccexe $gccparm end]
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set gccexe [string range $gccexe 0 $gccparm]
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set prog $gccexe
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}
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set gccexe [string replace $gccexe 0 [string last "/" $gccexe] ""]
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if {[string match "*cc*" $gccexe] || [string match "*++*" $gccexe]} then {
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set gccflags "$gcc_B_opt $gccflags $ld_L_opt"
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if {![info exists gcc_ld_B_opt_tested]} {
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set gcc_ld_B_opt_tested 1
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set ld_version_message [run_host_cmd "$ld" "--version"]
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set gcc_ld_version_message [run_host_cmd "$prog" "$gccflags -Wl,--version"]
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if {[string first $ld_version_message $gcc_ld_version_message] < 0} {
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perror "************************************************************************"
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perror "Your compiler driver ignores -B when choosing ld."
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perror "You will not be testing the new ld in many of the following tests."
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set gcc_ld_version [run_host_cmd "$prog" "$gccflags --print-prog-name=ld"]
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if {![string match "" $gcc_ld_version] && ![string match "ld" $gcc_ld_version]} {
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perror "It seems you will be testing $gcc_ld_version instead."
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}
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perror "************************************************************************"
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}
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}
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}
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verbose -log "$prog $gccflags $command"
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set status [remote_exec host [concat sh -c [list "$prog $gccflags $command 2>&1"]] "" "/dev/null" "ld.tmp"]
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remote_upload host "ld.tmp"
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set link_output [file_contents "ld.tmp"]
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regsub "\n$" $link_output "" link_output
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if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
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append link_output "child process exited abnormally"
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}
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remote_file build delete ld.tmp
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remote_file host delete ld.tmp
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if [string match "" $link_output] then {
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return ""
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}
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verbose -log "$link_output"
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return "$link_output"
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}
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proc run_host_cmd_yesno { prog command } {
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global exec_output
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global errcnt warncnt
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set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
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# Ignore error and warning.
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set errcnt 0
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set warncnt 0
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if [string match "" $exec_output] then {
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return 1;
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}
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return 0;
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}
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# Link an object using relocation.
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#
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proc default_ld_relocate { ld target objects } {
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global HOSTING_EMU
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remote_file host delete $target
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return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
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}
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# Check to see if ld is being invoked with a non-endian output format
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#
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proc is_endian_output_format { object_flags } {
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if {[string match "*-oformat binary*" $object_flags] || \
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[string match "*-oformat ieee*" $object_flags] || \
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[string match "*-oformat ihex*" $object_flags] || \
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[string match "*-oformat netbsd-core*" $object_flags] || \
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[string match "*-oformat srec*" $object_flags] || \
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[string match "*-oformat tekhex*" $object_flags] || \
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[string match "*-oformat trad-core*" $object_flags] } then {
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return 0
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} else {
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return 1
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}
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}
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# Link a program using ld
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#
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proc default_ld_link { ld target objects } {
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global host_triplet
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global exec_output
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set flags ""
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if [is_endian_output_format $objects] then {
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set flags [big_or_little_endian]
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}
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remote_file host delete $target
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set exec_output [run_host_cmd "$ld" "$flags -o $target $objects"]
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set exec_output [prune_warnings $exec_output]
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# We don't care if we get a warning about a non-existent start
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# symbol, since the default linker script might use ENTRY.
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regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
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return [string match "" $exec_output]
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}
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# Compile an object using cc.
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#
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proc default_ld_compile { cc source object } {
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global CFLAGS
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global CXXFLAGS
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global srcdir
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global subdir
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global host_triplet
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global gcc_B_opt
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set cc_prog $cc
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if {[llength $cc_prog] > 1} then {
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set cc_prog [lindex $cc_prog 0]
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}
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if {![is_remote host] && [which $cc_prog] == 0} then {
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perror "$cc_prog does not exist"
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return 0
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}
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remote_file build delete "$object"
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remote_file host delete "$object"
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set flags "$gcc_B_opt -I$srcdir/$subdir"
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# If we are compiling with gcc, we want to add gcc_B_opt to flags.
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# However, if $prog already has -B options, which might be the
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# case when running gcc out of a build directory, we want our -B
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# options to come first.
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set ccexe $cc
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set ccparm [string first " " $cc]
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set ccflags ""
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if { $ccparm > 0 } then {
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set ccflags [string range $cc $ccparm end]
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set ccexe [string range $cc 0 $ccparm]
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set cc $ccexe
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}
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set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
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if {[string match "*++*" $ccexe]} {
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append flags " $CXXFLAGS"
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} else {
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append flags " $CFLAGS"
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}
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if [board_info [target_info name] exists cflags] {
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append flags " [board_info [target_info name] cflags]"
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}
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if [board_info [target_info name] exists multilib_flags] {
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append flags " [board_info [target_info name] multilib_flags]"
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}
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set cmd "$cc $flags $ccflags -c $source -o $object"
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verbose -log "$cmd"
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set status [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
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remote_upload host "ld.tmp"
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set exec_output [file_contents "ld.tmp"]
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remote_file build delete "ld.tmp"
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remote_file host delete "ld.tmp"
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set exec_output [prune_warnings $exec_output]
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# Versions of gcc up to and including pre-release gcc-7, at least on
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# some targets, generate .section directives with incorrect type.
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# Ignore warnings from the assembler about this.
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regsub -all "(^|\n)\[^\n\]*: ignoring incorrect section type \[^\n\]*" $exec_output "" exec_output
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regsub -all "^\[^\n\]*: Assembler messages:\n" $exec_output "" exec_output
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if [string match "" $exec_output] then {
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if {![file exists $object]} then {
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regexp ".*/(\[^/\]*)$" $source all dobj
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regsub "\\.c" $dobj ".o" realobj
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verbose "looking for $realobj"
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if {[remote_file host exists $realobj]} then {
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verbose -log "mv $realobj $object"
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remote_upload "$realobj" "$object"
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} else {
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perror "$object not found after compilation"
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return 0
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}
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}
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return 1
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} else {
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verbose -log "$exec_output"
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return 0
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}
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}
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# Assemble a file.
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#
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proc default_ld_assemble { as in_flags source object } {
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global ASFLAGS
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global host_triplet
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global srcdir
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global subdir
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if ![info exists ASFLAGS] { set ASFLAGS "" }
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set flags "[big_or_little_endian] -I$srcdir/$subdir"
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set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"]
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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return 1
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} else {
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return 0
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}
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}
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# Run nm on a file, putting the result in the array nm_output.
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#
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proc default_ld_nm { nm nmflags object } {
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global NMFLAGS
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global nm_output
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global host_triplet
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if {[info exists nm_output]} {
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unset nm_output
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}
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if ![info exists NMFLAGS] { set NMFLAGS "" }
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# Ensure consistent sorting of symbols
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if {[info exists env(LC_ALL)]} {
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set old_lc_all $env(LC_ALL)
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}
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set env(LC_ALL) "C"
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verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
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set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
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if {[info exists old_lc_all]} {
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set env(LC_ALL) $old_lc_all
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} else {
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unset env(LC_ALL)
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}
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remote_upload host "ld.stderr"
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remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
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set exec_output [prune_warnings [file_contents "ld.stderr"]]
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remote_file host delete "ld.stderr"
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remote_file build delete "ld.stderr"
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if [string match "" $exec_output] then {
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set file [open tmpdir/nm.out r]
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while { [gets $file line] != -1 } {
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verbose "$line" 2
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if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
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set name [string trimleft $name "_"]
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verbose "Setting nm_output($name) to 0x$value" 2
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set nm_output($name) 0x$value
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}
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}
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close $file
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return 1
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} else {
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verbose -log "$exec_output"
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return 0
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}
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}
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# Define various symbols needed when not linking against all
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# target libs.
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proc ld_link_defsyms {} {
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set flags "--defsym __stack_chk_fail=0"
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# ARM targets call __gccmain
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if {[istarget arm*-*-*]} {
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append flags " --defsym __gccmain=0"
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}
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# Windows targets need __main, some prefixed with underscore.
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if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
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append flags " --defsym __main=0 --defsym ___main=0"
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}
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# PowerPC EABI code calls __eabi.
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if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
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append flags " --defsym __eabi=0"
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}
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# mn10200 code calls __truncsipsi2_d0_d2.
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if {[istarget mn10200*-*-*]} then {
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append flags " --defsym __truncsipsi2_d0_d2=0"
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}
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# m6811/m6812 code has references to soft registers.
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if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
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append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
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append flags " --defsym _.d3=0 --defsym _.d4=0"
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append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
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}
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# Some OpenBSD targets have ProPolice and reference __guard and
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# __stack_smash_handler.
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if [istarget *-*-openbsd*] {
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append flags " --defsym __guard=0"
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append flags " --defsym __stack_smash_handler=0"
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}
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return $flags
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}
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# Create an archive using ar
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#
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proc ar_simple_create { ar aropts target objects } {
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remote_file host delete $target
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set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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send_log "$exec_output\n"
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return 1
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} else {
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return 0
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}
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}
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# List contains test-items with 3 items followed by 2 lists, one item and
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# one optional item:
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# 0:name
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# 1:ld/ar leading options, placed before object files
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# 2:ld/ar trailing options, placed after object files
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# 3:assembler options
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# 4:filenames of assembler files
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# 5:list of actions, options and expected outputs.
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# 6:name of output file
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# 7:compiler flags (optional)
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#
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# Actions: { command command-line-options file-containg-expected-output-regexps }
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# Commands:
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# objdump: Apply objdump options on result.
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# nm: Apply nm options on result.
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# readelf: Apply readelf options on result.
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# ld: Don't apply anything on result. Compare output during linking with
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# the file containing regexps (which is the second arg, not the third).
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# Note that this *must* be the first action if it is to be used at all;
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# in all other cases, any output from the linker during linking is
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# treated as a sign of an error and FAILs the test.
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#
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# args is an optional list of target triplets to be xfailed.
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#
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proc run_ld_link_tests { ldtests args } {
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global ld
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global as
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global nm
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global ar
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global objdump
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global READELF
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global srcdir
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global subdir
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global env
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global CC
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global CFLAGS
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global runtests
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global exec_output
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set ld_extra_opt ""
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if [check_relro_support] {
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set ld_extra_opt "-z norelro"
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}
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foreach testitem $ldtests {
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set testname [lindex $testitem 0]
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if ![runtest_file_p $runtests $testname] then {
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continue
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}
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foreach target $args {
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if [match_target $target] {
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setup_xfail "*-*-*"
|
|
break
|
|
}
|
|
}
|
|
|
|
set ld_options [lindex $testitem 1]
|
|
set ld_after [lindex $testitem 2]
|
|
set as_options [lindex $testitem 3]
|
|
set src_files [lindex $testitem 4]
|
|
set actions [lindex $testitem 5]
|
|
set binfile tmpdir/[lindex $testitem 6]
|
|
set cflags [lindex $testitem 7]
|
|
set objfiles {}
|
|
set is_unresolved 0
|
|
set failed 0
|
|
set maybe_failed 0
|
|
set ld_output ""
|
|
|
|
# verbose -log "Testname is $testname"
|
|
# verbose -log "ld_options is $ld_options"
|
|
# verbose -log "ld_after is $ld_after"
|
|
# verbose -log "as_options is $as_options"
|
|
# verbose -log "src_files is $src_files"
|
|
# verbose -log "actions is $actions"
|
|
# verbose -log "binfile is $binfile"
|
|
|
|
# Assemble each file in the test.
|
|
foreach src_file $src_files {
|
|
set fileroot "[file rootname [file tail $src_file]]"
|
|
set objfile "tmpdir/$fileroot.o"
|
|
lappend objfiles $objfile
|
|
|
|
if { [file extension $src_file] == ".c" } {
|
|
set as_file "tmpdir/$fileroot.s"
|
|
if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
|
|
set is_unresolved 1
|
|
break
|
|
}
|
|
} else {
|
|
set as_file "$srcdir/$subdir/$src_file"
|
|
}
|
|
if ![ld_assemble $as "$as_options $as_file" $objfile] {
|
|
set failed 1
|
|
break
|
|
}
|
|
}
|
|
|
|
# Catch assembler errors.
|
|
if { $failed } {
|
|
fail $testname
|
|
continue
|
|
}
|
|
# Catch compiler errors.
|
|
if { $is_unresolved } {
|
|
unresolved $testname
|
|
continue
|
|
}
|
|
|
|
if { $binfile eq "tmpdir/" } {
|
|
# compile only
|
|
} elseif { [regexp ".*\\.a$" $binfile] } {
|
|
if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
|
|
set failed 1
|
|
}
|
|
} elseif { ![ld_link $ld $binfile "$ld_extra_opt -L$srcdir/$subdir $ld_options $objfiles $ld_after"] } {
|
|
set maybe_failed 1
|
|
set ld_output "$exec_output"
|
|
}
|
|
|
|
if { !$failed } {
|
|
foreach actionlist $actions {
|
|
set action [lindex $actionlist 0]
|
|
set progopts [lindex $actionlist 1]
|
|
|
|
# There are actions where we run regexp_diff on the
|
|
# output, and there are other actions (presumably).
|
|
# Handling of the former look the same.
|
|
set dump_prog ""
|
|
switch -- $action {
|
|
objdump
|
|
{ set dump_prog $objdump }
|
|
nm
|
|
{ set dump_prog $nm }
|
|
readelf
|
|
{ set dump_prog $READELF }
|
|
ld
|
|
{ set dump_prog "ld" }
|
|
default
|
|
{
|
|
perror "Unrecognized action $action"
|
|
set is_unresolved 1
|
|
break
|
|
}
|
|
}
|
|
|
|
if { $action == "ld" } {
|
|
set regexpfile $progopts
|
|
verbose "regexpfile is $srcdir/$subdir/$regexpfile"
|
|
set_file_contents "tmpdir/ld.messages" "$ld_output"
|
|
verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
|
|
if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then {
|
|
verbose "output is $ld_output" 2
|
|
set failed 1
|
|
break
|
|
}
|
|
set maybe_failed 0
|
|
} elseif { !$maybe_failed && $dump_prog != "" } {
|
|
set dumpfile [lindex $actionlist 2]
|
|
set binary $dump_prog
|
|
|
|
# Ensure consistent sorting of symbols
|
|
if {[info exists env(LC_ALL)]} {
|
|
set old_lc_all $env(LC_ALL)
|
|
}
|
|
set env(LC_ALL) "C"
|
|
set cmd "$binary $progopts $binfile"
|
|
set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
|
|
send_log "$cmd\n"
|
|
remote_upload host "ld.stderr"
|
|
set comp_output [prune_warnings [file_contents "ld.stderr"]]
|
|
remote_file host delete "ld.stderr"
|
|
remote_file build delete "ld.stderr"
|
|
|
|
if {[info exists old_lc_all]} {
|
|
set env(LC_ALL) $old_lc_all
|
|
} else {
|
|
unset env(LC_ALL)
|
|
}
|
|
|
|
if ![string match "" $comp_output] then {
|
|
send_log "$comp_output\n"
|
|
set failed 1
|
|
break
|
|
}
|
|
|
|
remote_upload host "dump.out"
|
|
|
|
if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
|
|
verbose "output is [file_contents "dump.out"]" 2
|
|
set failed 1
|
|
remote_file build delete "dump.out"
|
|
remote_file host delete "dump.out"
|
|
break
|
|
}
|
|
remote_file build delete "dump.out"
|
|
remote_file host delete "dump.out"
|
|
}
|
|
}
|
|
}
|
|
|
|
if { $is_unresolved } {
|
|
unresolved $testname
|
|
} elseif { $maybe_failed || $failed } {
|
|
fail $testname
|
|
} else {
|
|
pass $testname
|
|
}
|
|
}
|
|
}
|
|
|
|
# ldtests contains test-items with 3 items followed by 1 lists, 2 items
|
|
# and 3 optional items:
|
|
# 0:name
|
|
# 1:ld leading options, placed before object files
|
|
# 2:assembler options
|
|
# 3:filenames of source files
|
|
# 4:name of output file
|
|
# 5:expected output
|
|
# 6:compiler flags (optional)
|
|
# 7:language (optional)
|
|
# 8:linker warning (optional)
|
|
# 9:ld trailing options, placed after object files (optional)
|
|
# args is an optional list of target triplets to be xfailed.
|
|
|
|
proc run_ld_link_exec_tests { ldtests args } {
|
|
global ld
|
|
global as
|
|
global srcdir
|
|
global subdir
|
|
global env
|
|
global CC
|
|
global CXX
|
|
global CFLAGS
|
|
global CXXFLAGS
|
|
global errcnt
|
|
global exec_output
|
|
global board_cflags
|
|
global STATIC_LDFLAGS
|
|
|
|
# When using GCC as the linker driver, we need to specify board cflags when
|
|
# linking because cflags may contain linker options. For example when
|
|
# linker options are included in GCC spec files then we need the -specs
|
|
# option.
|
|
if [board_info [target_info name] exists cflags] {
|
|
set board_cflags " [board_info [target_info name] cflags]"
|
|
} else {
|
|
set board_cflags ""
|
|
}
|
|
|
|
foreach testitem $ldtests {
|
|
set testname [lindex $testitem 0]
|
|
set ld_options [lindex $testitem 1]
|
|
set as_options [lindex $testitem 2]
|
|
set src_files [lindex $testitem 3]
|
|
set binfile tmpdir/[lindex $testitem 4]
|
|
set expfile [lindex $testitem 5]
|
|
set cflags [lindex $testitem 6]
|
|
set lang [lindex $testitem 7]
|
|
set warning [lindex $testitem 8]
|
|
set ld_after [lindex $testitem 9]
|
|
set objfiles {}
|
|
set failed 0
|
|
|
|
if { ![check_compiler_available] } {
|
|
unsupported $testname
|
|
continue
|
|
}
|
|
|
|
# Add -fno-lto. LTO should be tested explicitly by $cflags.
|
|
if {[check_lto_available]} {
|
|
set cflags "-fno-lto $cflags"
|
|
}
|
|
|
|
foreach target $args {
|
|
if [match_target $target] {
|
|
setup_xfail "*-*-*"
|
|
break
|
|
}
|
|
}
|
|
|
|
# verbose -log "Testname is $testname"
|
|
# verbose -log "ld_options is $ld_options"
|
|
# verbose -log "as_options is $as_options"
|
|
# verbose -log "src_files is $src_files"
|
|
# verbose -log "binfile is $binfile"
|
|
|
|
# Assemble each file in the test.
|
|
foreach src_file $src_files {
|
|
set fileroot "[file rootname [file tail $src_file]]"
|
|
set objfile "tmpdir/$fileroot.o"
|
|
lappend objfiles $objfile
|
|
|
|
if { [ string match "c++" $lang ] } {
|
|
set cmd "$CXX -c $CXXFLAGS $cflags"
|
|
} else {
|
|
set cmd "$CC -c $CFLAGS $cflags"
|
|
}
|
|
if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
|
|
set failed 1
|
|
break
|
|
}
|
|
}
|
|
if { $failed != 0 } {
|
|
unresolved $testname
|
|
continue
|
|
}
|
|
|
|
if { [ string match "asm" $lang ] } {
|
|
set link_proc ld_link
|
|
set link_cmd $ld
|
|
} elseif { [ string match "c++" $lang ] } {
|
|
set link_proc ld_link
|
|
set link_cmd $CXX
|
|
} else {
|
|
set link_proc ld_link
|
|
set link_cmd $CC
|
|
}
|
|
|
|
if { $binfile eq "tmpdir/" } {
|
|
# compile only
|
|
pass $testname
|
|
continue;
|
|
} else {
|
|
if { [string match "" $STATIC_LDFLAGS] \
|
|
&& [regexp -- ".* \[-\]+static .*" " $board_cflags $ld_options $objfiles $ld_after "] } {
|
|
untested $testname
|
|
continue
|
|
}
|
|
if ![$link_proc $link_cmd $binfile "$board_cflags -L$srcdir/$subdir $ld_options $objfiles $ld_after"] {
|
|
set failed 1
|
|
}
|
|
}
|
|
|
|
# Check if exec_output is expected.
|
|
if { $warning != "" } then {
|
|
verbose -log "returned with: <$exec_output>, expected: <$warning>"
|
|
if { [regexp $warning $exec_output] } then {
|
|
set failed 0
|
|
} else {
|
|
set failed 1
|
|
}
|
|
}
|
|
|
|
if { $failed == 0 && [isnative] } {
|
|
send_log "Running: $binfile > $binfile.out\n"
|
|
verbose "Running: $binfile > $binfile.out"
|
|
catch "exec $binfile > $binfile.out" exec_output
|
|
|
|
if ![string match "" $exec_output] then {
|
|
send_log "$exec_output\n"
|
|
verbose "$exec_output" 1
|
|
set failed 1
|
|
} else {
|
|
send_log [file_contents $binfile.out]
|
|
verbose [file_contents $binfile.out] 2
|
|
if [regexp_diff "$binfile.out" "$srcdir/$subdir/$expfile"] {
|
|
set failed 1
|
|
}
|
|
}
|
|
}
|
|
|
|
if { $failed != 0 } {
|
|
fail $testname
|
|
} elseif ![isnative] {
|
|
unsupported $testname
|
|
} else {
|
|
set errcnt 0
|
|
pass $testname
|
|
}
|
|
}
|
|
}
|
|
|
|
# List contains test-items with 3 items followed by 2 lists, one item and
|
|
# one optional item:
|
|
# 0:name
|
|
# 1:ld or ar options
|
|
# 2:compile options
|
|
# 3:filenames of source files
|
|
# 4:action and options.
|
|
# 5:name of output file
|
|
# 6:language (optional)
|
|
#
|
|
# Actions:
|
|
# objdump: Apply objdump options on result. Compare with regex (last arg).
|
|
# nm: Apply nm options on result. Compare with regex (last arg).
|
|
# readelf: Apply readelf options on result. Compare with regex (last arg).
|
|
# warning: Check linker output against regex (last arg).
|
|
# error: Like 'warning' but checking output in error case.
|
|
# warning_output: Check linker output against regex in a file (last arg).
|
|
# error_output: Like 'warning_output' but checking output in error case.
|
|
#
|
|
proc run_cc_link_tests { ldtests } {
|
|
global nm
|
|
global objdump
|
|
global READELF
|
|
global srcdir
|
|
global subdir
|
|
global env
|
|
global CC
|
|
global CXX
|
|
global CFLAGS
|
|
global CXXFLAGS
|
|
global ar
|
|
global exec_output
|
|
global board_cflags
|
|
global STATIC_LDFLAGS
|
|
|
|
if [board_info [target_info name] exists cflags] {
|
|
set board_cflags " [board_info [target_info name] cflags]"
|
|
} else {
|
|
set board_cflags ""
|
|
}
|
|
|
|
foreach testitem $ldtests {
|
|
set testname [lindex $testitem 0]
|
|
set ldflags [lindex $testitem 1]
|
|
set cflags [lindex $testitem 2]
|
|
set src_files [lindex $testitem 3]
|
|
set actions [lindex $testitem 4]
|
|
set binfile tmpdir/[lindex $testitem 5]
|
|
set lang [lindex $testitem 6]
|
|
set objfiles {}
|
|
set is_unresolved 0
|
|
set failed 0
|
|
set check_ld(terminal) 0
|
|
set check_ld(source) ""
|
|
|
|
if { ![check_compiler_available] } {
|
|
unsupported $testname
|
|
continue
|
|
}
|
|
|
|
# Add -fno-lto. LTO should be tested explicitly by $cflags.
|
|
if {[check_lto_available]} {
|
|
set cflags "-fno-lto $cflags"
|
|
}
|
|
|
|
#verbose -log "testname is $testname"
|
|
#verbose -log "ldflags is $ldflags"
|
|
#verbose -log "cflags is $cflags"
|
|
#verbose -log "src_files is $src_files"
|
|
#verbose -log "actions is $actions"
|
|
#verbose -log "binfile is $binfile"
|
|
#verbose -log "lang is $lang"
|
|
|
|
foreach actionlist $actions {
|
|
set action [lindex $actionlist 0]
|
|
set progopts [lindex $actionlist 1]
|
|
|
|
# Find actions related to error/warning processing.
|
|
switch -- $action {
|
|
error
|
|
{
|
|
set check_ld(source) "regexp"
|
|
set check_ld(regexp) $progopts
|
|
set check_ld(terminal) 1
|
|
}
|
|
warning
|
|
{
|
|
set check_ld(source) "regexp"
|
|
set check_ld(regexp) $progopts
|
|
}
|
|
error_output
|
|
{
|
|
set check_ld(source) "file"
|
|
set check_ld(file) $progopts
|
|
set check_ld(terminal) 1
|
|
}
|
|
warning_output
|
|
{
|
|
set check_ld(source) "file"
|
|
set check_ld(file) $progopts
|
|
}
|
|
}
|
|
}
|
|
|
|
# Compile each file in the test.
|
|
foreach src_file $src_files {
|
|
set fileroot "[file rootname [file tail $src_file]]"
|
|
set objfile "tmpdir/$fileroot.o"
|
|
lappend objfiles $objfile
|
|
|
|
if { [ string match "c++" $lang ] } {
|
|
set cmd "$CXX -c $CXXFLAGS $cflags"
|
|
} else {
|
|
set cmd "$CC -c $CFLAGS $cflags"
|
|
}
|
|
if ![ld_compile $cmd $srcdir/$subdir/$src_file $objfile] {
|
|
set failed 1
|
|
break
|
|
}
|
|
}
|
|
if { $failed != 0 } {
|
|
unresolved $testname
|
|
continue
|
|
}
|
|
|
|
# Clear error and warning counts.
|
|
reset_vars
|
|
|
|
if { [ string match "c++" $lang ] } {
|
|
set cc_cmd $CXX
|
|
} else {
|
|
set cc_cmd $CC
|
|
}
|
|
|
|
if { $binfile eq "tmpdir/" } {
|
|
# compile only
|
|
set binfile $objfile
|
|
} elseif { [regexp ".*\\.a$" $binfile] } {
|
|
if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
|
|
set failed 1
|
|
}
|
|
} else {
|
|
if { [string match "" $STATIC_LDFLAGS] \
|
|
&& [regexp -- ".* \[-\]+static .*" " $board_cflags $ldflags $objfiles "] } {
|
|
untested $testname
|
|
continue
|
|
}
|
|
ld_link $cc_cmd $binfile "$board_cflags -L$srcdir/$subdir $ldflags $objfiles"
|
|
set ld_output "$exec_output"
|
|
|
|
if { $check_ld(source) == "regexp" } then {
|
|
# Match output against regexp argument.
|
|
verbose -log "returned with: <$ld_output>, expected: <$check_ld(regexp)>"
|
|
if { ![regexp $check_ld(regexp) $ld_output] } then {
|
|
set failed 1
|
|
}
|
|
} elseif { $check_ld(source) == "file" } then {
|
|
# Match output against patterns in a file.
|
|
set_file_contents "tmpdir/ld.messages" "$ld_output"
|
|
verbose "ld.messages has '[file_contents tmpdir/ld.messages]'"
|
|
if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$check_ld(file)"] } then {
|
|
verbose "output is $ld_output" 2
|
|
set failed 1
|
|
}
|
|
}
|
|
|
|
if { $check_ld(source) != "" } then {
|
|
if { $ld_output == "" } then {
|
|
verbose -log "Linker was expected to give error or warning"
|
|
set failed 1
|
|
}
|
|
} else {
|
|
if { $ld_output != "" } then {
|
|
verbose -log "Unexpected linker warning or error"
|
|
set failed 1
|
|
}
|
|
}
|
|
}
|
|
|
|
if { $failed == 0 } {
|
|
foreach actionlist $actions {
|
|
set action [lindex $actionlist 0]
|
|
set progopts [lindex $actionlist 1]
|
|
|
|
# There are actions where we run regexp_diff on the
|
|
# output, and there are other actions (presumably).
|
|
# Handling of the former look the same.
|
|
set dump_prog ""
|
|
switch -- $action {
|
|
objdump
|
|
{ set dump_prog $objdump }
|
|
nm
|
|
{ set dump_prog $nm }
|
|
readelf
|
|
{ set dump_prog $READELF }
|
|
error {}
|
|
warning {}
|
|
error_output {}
|
|
warning_output {}
|
|
default
|
|
{
|
|
perror "Unrecognized action $action"
|
|
set is_unresolved 1
|
|
break
|
|
}
|
|
}
|
|
|
|
if { $dump_prog != "" } {
|
|
set dumpfile [lindex $actionlist 2]
|
|
set binary $dump_prog
|
|
|
|
# Ensure consistent sorting of symbols
|
|
if {[info exists env(LC_ALL)]} {
|
|
set old_lc_all $env(LC_ALL)
|
|
}
|
|
set env(LC_ALL) "C"
|
|
set cmd "$binary $progopts $binfile > dump.out"
|
|
send_log "$cmd\n"
|
|
catch "exec $cmd" comp_output
|
|
if {[info exists old_lc_all]} {
|
|
set env(LC_ALL) $old_lc_all
|
|
} else {
|
|
unset env(LC_ALL)
|
|
}
|
|
set comp_output [prune_warnings $comp_output]
|
|
|
|
if ![string match "" $comp_output] then {
|
|
send_log "$comp_output\n"
|
|
set failed 1
|
|
break
|
|
}
|
|
|
|
if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
|
|
verbose "output is [file_contents "dump.out"]" 2
|
|
set failed 1
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if { $failed } {
|
|
fail $testname
|
|
} elseif { $is_unresolved } {
|
|
unresolved $testname
|
|
} else {
|
|
pass $testname
|
|
}
|
|
}
|
|
}
|
|
|
|
# Returns true if --gc-sections is supported on the target.
|
|
|
|
proc check_gc_sections_available { } {
|
|
global gc_sections_available_saved
|
|
global ld
|
|
|
|
if {![info exists gc_sections_available_saved]} {
|
|
# Some targets don't support gc-sections despite whatever's
|
|
# advertised by ld's options.
|
|
if { [istarget alpha-*-*]
|
|
|| [istarget bpf-*-*]
|
|
|| [istarget d30v-*-*]
|
|
|| [istarget dlx-*-*]
|
|
|| [istarget hppa*64-*-*]
|
|
|| [istarget ia64-*-*]
|
|
|| [istarget mep-*-*]
|
|
|| [istarget mn10200-*-*]
|
|
|| [istarget pj*-*-*]
|
|
|| [istarget pru*-*-*]
|
|
|| [istarget s12z-*-*]
|
|
|| [istarget xgate-*-*]
|
|
|| [istarget z80-*-*] } {
|
|
set gc_sections_available_saved 0
|
|
return 0
|
|
}
|
|
|
|
# elf2flt uses -q (--emit-relocs), which is incompatible with
|
|
# --gc-sections.
|
|
if { [board_info target exists ldflags]
|
|
&& [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
|
|
set gc_sections_available_saved 0
|
|
return 0
|
|
}
|
|
|
|
# Check if the ld used by gcc supports --gc-sections.
|
|
# FIXME: this test is useless since ld --help always says
|
|
# --gc-sections is available
|
|
set ld_output [remote_exec host $ld "--help"]
|
|
if { [ string first "--gc-sections" $ld_output ] >= 0 } {
|
|
set gc_sections_available_saved 1
|
|
} else {
|
|
set gc_sections_available_saved 0
|
|
}
|
|
}
|
|
return $gc_sections_available_saved
|
|
}
|
|
|
|
# Return true if target uses genelf.em.
|
|
proc uses_genelf { } {
|
|
if { [istarget "d30v-*-*"]
|
|
|| [istarget "dlx-*-*"]
|
|
|| [istarget "fr30-*-*"]
|
|
|| ([istarget "frv-*-*"] && ![istarget "frv-*-linux*"])
|
|
|| [istarget "ft32-*-*"]
|
|
|| [istarget "iq2000-*-*"]
|
|
|| [istarget "mn10200-*-*"]
|
|
|| [istarget "msp430-*-*"]
|
|
|| [istarget "mt-*-*"]
|
|
|| [istarget "pj*-*-*"]
|
|
|| [istarget "s12z-*-*"]
|
|
|| [istarget "xgate-*-*"] } {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
proc is_underscore_target { } {
|
|
global is_underscore_target_saved
|
|
global target_triplet
|
|
global srcdir
|
|
|
|
if { ![info exists is_underscore_target_saved] } {
|
|
set cmd "targ=$target_triplet . $srcdir/../../bfd/config.bfd &&"
|
|
append cmd { echo "$targ_underscore"}
|
|
verbose -log "$cmd"
|
|
set status [catch {exec sh -c $cmd} result]
|
|
if { $status == 0 && [string match "yes" $result] } {
|
|
set is_underscore_target_saved 1
|
|
} else {
|
|
set is_underscore_target_saved 0
|
|
}
|
|
}
|
|
return $is_underscore_target_saved
|
|
}
|
|
|
|
# Returns true if the target ld supports the plugin API.
|
|
proc check_plugin_api_available { } {
|
|
global plugin_api_available_saved
|
|
global ld
|
|
if {![info exists plugin_api_available_saved]} {
|
|
# Check if the ld used by gcc supports --plugin.
|
|
set ld_output [remote_exec host $ld "--help"]
|
|
if { [regexp -- "-plugin PLUGIN \[^\n\r\]*" $ld_output line]
|
|
&& ![regexp "ignored" $line] } {
|
|
set plugin_api_available_saved 1
|
|
} else {
|
|
set plugin_api_available_saved 0
|
|
}
|
|
}
|
|
return $plugin_api_available_saved
|
|
}
|
|
|
|
# Sets ld_sysroot to the current sysroot (empty if not supported) and
|
|
# returns true if the target ld supports sysroot.
|
|
proc check_sysroot_available { } {
|
|
global ld_sysroot_available_saved ld ld_sysroot
|
|
if {![info exists ld_sysroot_available_saved]} {
|
|
# Check if ld supports --sysroot *other* than empty.
|
|
set ld_sysroot [string trimright [lindex [remote_exec host $ld "--print-sysroot"] 1]]
|
|
if { $ld_sysroot == "" } {
|
|
set ld_sysroot_available_saved 0
|
|
} else {
|
|
set ld_sysroot_available_saved 1
|
|
}
|
|
}
|
|
return $ld_sysroot_available_saved
|
|
}
|
|
|
|
# Return true if we can build a program with the compiler.
|
|
# On some targets, CC might be defined, but libraries and startup
|
|
# code might be missing or require special options that the ld test
|
|
# harness doesn't know about.
|
|
|
|
proc check_compiler_available { } {
|
|
global compiler_available_saved
|
|
global CC
|
|
|
|
if {![info exists compiler_available_saved]} {
|
|
if { [which $CC] == 0 } {
|
|
set compiler_available_saved 0
|
|
return 0
|
|
}
|
|
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/compiler[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.out
|
|
set f [open $src "w"]
|
|
puts $f "int main (void)"
|
|
puts $f "{"
|
|
puts $f " return 0; "
|
|
puts $f "}"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set compiler_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $compiler_available_saved
|
|
}
|
|
|
|
# Returns 1 if plugin is enabled in gcc. Returns 0 otherwise.
|
|
proc check_gcc_plugin_enabled { } {
|
|
global CC
|
|
|
|
if {![info exists CC]} {
|
|
set CC [find_gcc]
|
|
}
|
|
if { $CC == ""} {
|
|
return 0
|
|
}
|
|
# Filter out -Wl, options.
|
|
regsub -all -- "-Wl,\[^ ^\t\]+" $CC "" cc_cmd
|
|
set state [remote_exec host $cc_cmd -v]
|
|
if { [lindex $state 0] != 0 } {
|
|
return 0;
|
|
}
|
|
for { set i 1 } { $i < [llength $state] } { incr i } {
|
|
set v [lindex $state $i]
|
|
if { [ string match "*--disable-plugin*" $v ] } {
|
|
verbose "plugin is disabled by $v"
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
# Returns true if the target compiler supports LTO
|
|
proc check_lto_available { } {
|
|
global lto_available_saved
|
|
global CC
|
|
|
|
if {![info exists lto_available_saved]} {
|
|
if { ![check_gcc_plugin_enabled] } {
|
|
set lto_available_saved 0
|
|
return 0
|
|
}
|
|
# This test will hide LTO bugs in ld. Since GCC 4.9 adds
|
|
# -ffat-lto-objects, we always run LTO tests on Linux with
|
|
# GCC 4.9 or newer.
|
|
if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
|
|
set lto_available_saved 1
|
|
return 1
|
|
}
|
|
# Check if gcc supports -flto -fuse-linker-plugin
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/lto[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.out
|
|
set f [open $src "w"]
|
|
puts $f "int main() { return 0; }"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -fuse-linker-plugin $src -o $output"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $lto_available_saved
|
|
}
|
|
|
|
# Returns true if the target compiler supports LTO -ffat-lto-objects
|
|
proc check_lto_fat_available { } {
|
|
global lto_fat_available_saved
|
|
global CC
|
|
|
|
if {![info exists lto_fat_available_saved]} {
|
|
if { ![check_gcc_plugin_enabled] } {
|
|
set lto_fat_available_saved 0
|
|
return 0
|
|
}
|
|
# This test will hide LTO bugs in ld. Since GCC 4.9 adds
|
|
# -ffat-lto-objects, we always run LTO tests on Linux with
|
|
# GCC 4.9 or newer.
|
|
if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
|
|
set lto_fat_available_saved 1
|
|
return 1
|
|
}
|
|
# Check if gcc supports -flto -fuse-linker-plugin
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/lto[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.out
|
|
set f [open $src "w"]
|
|
puts $f "int main() { return 0; }"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set lto_fat_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $lto_fat_available_saved
|
|
}
|
|
|
|
# Returns true if the target compiler supports LTO and -shared
|
|
proc check_lto_shared_available { } {
|
|
global lto_shared_available_saved
|
|
global CC
|
|
|
|
if {![info exists lto_shared_available_saved]} {
|
|
if { ![check_gcc_plugin_enabled] } {
|
|
set lto_shared_available_saved 0
|
|
return 0
|
|
}
|
|
# This test will hide LTO bugs in ld. Since GCC 4.9 adds
|
|
# -ffat-lto-objects, we always run LTO tests on Linux with
|
|
# GCC 4.9 or newer.
|
|
if { [istarget "*-*-linux*"] && [at_least_gcc_version 4 9] } {
|
|
set lto_shared_available_saved 1
|
|
return 1
|
|
}
|
|
# Check if gcc supports -flto -fuse-linker-plugin -shared
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/lto_shared[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.so
|
|
set f [open $src "w"]
|
|
puts $f ""
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set lto_shared_available_saved [run_host_cmd_yesno "$CC" "$flags -shared -fPIC -flto -fuse-linker-plugin $src -o $output"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $lto_shared_available_saved
|
|
}
|
|
|
|
# Check if the assembler supports CFI statements.
|
|
|
|
proc check_as_cfi { } {
|
|
global check_as_cfi_result
|
|
global as
|
|
if [info exists check_as_cfi_result] {
|
|
return $check_as_cfi_result
|
|
}
|
|
set as_file "tmpdir/check_as_cfi.s"
|
|
set as_fh [open $as_file w 0666]
|
|
puts $as_fh "# Generated file. DO NOT EDIT"
|
|
puts $as_fh "\t.cfi_startproc"
|
|
puts $as_fh "\t.cfi_endproc"
|
|
close $as_fh
|
|
remote_download host $as_file
|
|
verbose -log "Checking CFI support:"
|
|
set success [ld_assemble $as $as_file "/dev/null"]
|
|
#remote_file host delete $as_file
|
|
set check_as_cfi_result $success
|
|
return $success
|
|
}
|
|
|
|
# Returns true if IFUNC works.
|
|
|
|
proc check_ifunc_available { } {
|
|
global ifunc_available_saved
|
|
global CC
|
|
|
|
if {![info exists ifunc_available_saved]} {
|
|
if { ![check_compiler_available] } {
|
|
set ifunc_available_saved 0
|
|
return 0
|
|
}
|
|
# Check if gcc supports -flto -fuse-linker-plugin
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/ifunc[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.out
|
|
set f [open $src "w"]
|
|
puts $f "extern int library_func2 (void);"
|
|
puts $f "int main (void)"
|
|
puts $f "{"
|
|
puts $f " if (library_func2 () != 2) __builtin_abort ();"
|
|
puts $f " return 0; "
|
|
puts $f "}"
|
|
puts $f "static int library_func1 (void) {return 2; }"
|
|
puts $f "void *foo (void) __asm__ (\"library_func2\");"
|
|
puts $f "void *foo (void) { return library_func1; }"
|
|
puts $f "__asm__(\".type library_func2, %gnu_indirect_function\");"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set ifunc_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
|
|
if { [isnative] && $ifunc_available_saved == 1 } {
|
|
set ifunc_available_saved [run_host_cmd_yesno "$output" ""]
|
|
}
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $ifunc_available_saved
|
|
}
|
|
|
|
# Returns true if ifunc attribute works.
|
|
|
|
proc check_ifunc_attribute_available { } {
|
|
global ifunc_attribute_available_saved
|
|
global CC
|
|
|
|
if {![info exists ifunc_attribute_available_saved]} {
|
|
if { ![check_compiler_available] } {
|
|
set ifunc_attribute_available_saved 0
|
|
return 0
|
|
}
|
|
# Check if gcc supports -flto -fuse-linker-plugin
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/ifunc[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.out
|
|
set f [open $src "w"]
|
|
puts $f "extern int library_func2 (void) __attribute__ ((ifunc (\"foo\")));"
|
|
puts $f "int main (void)"
|
|
puts $f "{"
|
|
puts $f " if (library_func2 () != 2) __builtin_abort ();"
|
|
puts $f " return 0; "
|
|
puts $f "}"
|
|
puts $f "static int library_func1 (void) {return 2; }"
|
|
puts $f "void *foo (void) { return library_func1; }"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set ifunc_attribute_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
|
|
if { [isnative] && $ifunc_attribute_available_saved == 1 } {
|
|
set ifunc_attribute_available_saved [run_host_cmd_yesno "$output" ""]
|
|
}
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $ifunc_attribute_available_saved
|
|
}
|
|
|
|
# Return true if libdl is supported.
|
|
|
|
proc check_libdl_available { } {
|
|
global libdl_available_saved
|
|
global CC
|
|
|
|
if {![info exists libdl_available_saved]} {
|
|
if { ![check_compiler_available] } {
|
|
set libdl_available_saved 0
|
|
return 0
|
|
}
|
|
|
|
set basename "tmpdir/dl_avail_test[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.out
|
|
set f [open $src "w"]
|
|
# Sample test file.
|
|
puts $f "#include <dlfcn.h>"
|
|
puts $f "int main (void)"
|
|
puts $f "{"
|
|
puts $f " dlopen (\"dummy.so\", RTLD_NOW);"
|
|
puts $f " return 0; "
|
|
puts $f "}"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
set libdl_available_saved [run_host_cmd_yesno "$CC" "$src -o $output -ldl"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
return $libdl_available_saved
|
|
}
|
|
|
|
# Returns true if GNU2 TLS works.
|
|
|
|
proc check_gnu2_tls_available { } {
|
|
global gnu2_tls_available_saved
|
|
global CC
|
|
global GNU2_CFLAGS
|
|
|
|
if {![info exists gnu2_tls_available_saved]} {
|
|
if { ![check_compiler_available] || "$GNU2_CFLAGS" == "" } {
|
|
set gnu2_tls_available_saved 0
|
|
return 0
|
|
}
|
|
# Check if GNU2 TLS works.
|
|
set flags "$GNU2_CFLAGS"
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/gnu2_tls[pid]"
|
|
set src1 ${basename}1.c
|
|
set output1 ${basename}.so
|
|
set f [open $src1 "w"]
|
|
puts $f "extern __thread int zzz;"
|
|
puts $f "int foo (void)"
|
|
puts $f "{"
|
|
puts $f " return zzz;"
|
|
puts $f "}"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src1 [remote_download host $src1]
|
|
}
|
|
set src2 ${basename}2.c
|
|
set output2 ${basename}.exe
|
|
set f [open $src2 "w"]
|
|
puts $f "__thread int zzz = 20;"
|
|
puts $f "extern int foo (void);"
|
|
puts $f "int main (void)"
|
|
puts $f "{"
|
|
puts $f " if (foo () != 20) __builtin_abort ();"
|
|
puts $f " return 0; "
|
|
puts $f "}"
|
|
close $f
|
|
if [is_remote host] {
|
|
set src2 [remote_download host $src2]
|
|
}
|
|
set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "-fPIC -shared $flags $src1 -o $output1"]
|
|
if { $gnu2_tls_available_saved == 1 } {
|
|
set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "$flags $src2 $output1 -o $output2"]
|
|
if { $gnu2_tls_available_saved == 1 } {
|
|
set gnu2_tls_available_saved [run_host_cmd_yesno "$output2" ""]
|
|
}
|
|
}
|
|
remote_file host delete $src1
|
|
remote_file host delete $output1
|
|
remote_file host delete $src2
|
|
remote_file host delete $output2
|
|
file delete $src1 $src2
|
|
}
|
|
return $gnu2_tls_available_saved
|
|
}
|
|
|
|
# Compile a C source file, with the specified additional_flags.
|
|
proc compile_one_cc { src output additional_flags } {
|
|
global CC
|
|
global CFLAGS
|
|
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
if [is_remote host] {
|
|
set src [remote_download host $src]
|
|
}
|
|
return [run_host_cmd_yesno "$CC" "$flags $CFLAGS $additional_flags $src -o $output"]
|
|
}
|
|
|
|
# Returns true if the target compiler supports -gt
|
|
proc check_ctf_available { } {
|
|
global ctf_available_saved
|
|
|
|
if {![info exists ctf_available_saved]} {
|
|
if { ![check_compiler_available] } {
|
|
set ctf_available_saved 0
|
|
} else {
|
|
set basename "tmpdir/ctf_available[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.o
|
|
set f [open $src "w"]
|
|
puts $f "int main() { return 0; }"
|
|
close $f
|
|
set ctf_available_saved [compile_one_cc $src $output "-gt -c"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
}
|
|
}
|
|
return $ctf_available_saved
|
|
}
|
|
|
|
proc skip_ctf_tests { } {
|
|
global enable_libctf
|
|
|
|
if {$enable_libctf eq "no"} {
|
|
return 1
|
|
}
|
|
|
|
if [check_ctf_available] {
|
|
return 0
|
|
}
|
|
|
|
return 1
|
|
}
|