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https://sourceware.org/git/binutils-gdb.git
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0aa99dcd70
GCC LTO wrapper is needed to extract real symbols from LTO IR objects. This patch does the following: 1. Set up GCC LTO wrapper for each LTO IR object. 2. Run GCC LTO wrapper to get the real object. 3. Extract symbol info from the real object. 4. Cleanup afterwards. bfd/ PR binutils/25355 * configure.ac (HAVE_EXECUTABLE_SUFFIX): New AC_DEFINE. (EXECUTABLE_SUFFIX): Likewise. * config.in: Regenerated. * configure: Likewise. * plugin.c (bfd_plugin_close_and_cleanup): Removed. (plugin_list_entry): Add all_symbols_read, cleanup_handler, gcc, lto_wrapper, resolution_file, resolution_option, gcc_env, real_bfd, real_nsyms, real_syms, lto_nsyms and lto_syms. (get_lto_wrapper): New. (setup_lto_wrapper_env): Likewise. (current_plugin): Likewise. (register_all_symbols_read): Likewise. (register_cleanup): Likewise. (get_symbols): Likewise. (add_input_file): Likewise. (bfd_plugin_close_and_cleanup): Likewise. (claim_file): Removed. (register_claim_file): Set current_plugin->claim_file. (add_symbols): Make a copy of LTO symbols. Set lto_nsyms and lto_syms in current_plugin. (try_claim): Use current_plugin->claim_file. Call LTO plugin all_symbols_read handler. Copy real symbols to plugin_data. Call LTO plugin cleanup handler. Clean up for LTO wrapper. (try_load_plugin): Don't reuse the previous plugin for LTO wrapper. Set up GCC LTO wrapper if possible. Don't set plugin_list_iter->claim_file. (bfd_plugin_canonicalize_symtab): Use real LTO symbols if possible. * plugin.h (plugin_data_struct): Add real_bfd, real_nsyms and real_syms. ld/ PR binutils/25355 * testsuite/ld-plugin/lto.exp: Run PR binutils/25355 test. * testsuite/ld-plugin/pr25355.c: New file. * testsuite/ld-plugin/pr25355.d: Likewise. * testsuite/lib/ld-lib.exp (run_cc_link_tests): Support compile only dump.
1580 lines
44 KiB
Plaintext
1580 lines
44 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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set state [remote_exec host $CC --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 "$exec_output"
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perror "$source: compilation failed"
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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 "" $exec_output] then {
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return 1
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} else {
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perror "$source: assembly failed"
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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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perror "$object: nm failed"
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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" "-rc $aropts $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
|
|
global subdir
|
|
global env
|
|
global CC
|
|
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]
|
|
|
|
if ![runtest_file_p $runtests $testname] then {
|
|
continue
|
|
}
|
|
|
|
foreach target $args {
|
|
if [match_target $target] {
|
|
setup_xfail "*-*-*"
|
|
break
|
|
}
|
|
}
|
|
|
|
set ld_options [lindex $testitem 1]
|
|
set ld_after [lindex $testitem 2]
|
|
set as_options [lindex $testitem 3]
|
|
set src_files [lindex $testitem 4]
|
|
set actions [lindex $testitem 5]
|
|
set binfile tmpdir/[lindex $testitem 6]
|
|
set cflags [lindex $testitem 7]
|
|
set objfiles {}
|
|
set is_unresolved 0
|
|
set failed 0
|
|
set maybe_failed 0
|
|
set ld_output ""
|
|
|
|
# verbose -log "Testname is $testname"
|
|
# verbose -log "ld_options is $ld_options"
|
|
# verbose -log "ld_after is $ld_after"
|
|
# verbose -log "as_options is $as_options"
|
|
# verbose -log "src_files is $src_files"
|
|
# verbose -log "actions is $actions"
|
|
# verbose -log "binfile is $binfile"
|
|
|
|
# Assemble each file in the test.
|
|
foreach src_file $src_files {
|
|
set fileroot "[file rootname [file tail $src_file]]"
|
|
set objfile "tmpdir/$fileroot.o"
|
|
lappend objfiles $objfile
|
|
|
|
if { [file extension $src_file] == ".c" } {
|
|
set as_file "tmpdir/$fileroot.s"
|
|
if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
|
|
set is_unresolved 1
|
|
break
|
|
}
|
|
} else {
|
|
set as_file "$srcdir/$subdir/$src_file"
|
|
}
|
|
if ![ld_assemble $as "$as_options $as_file" $objfile] {
|
|
set is_unresolved 1
|
|
break
|
|
}
|
|
}
|
|
|
|
# Catch assembler 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
|
|
}
|
|
|
|
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 "diff $binfile.out $srcdir/$subdir/$expfile\n"
|
|
verbose "diff $binfile.out $srcdir/$subdir/$expfile"
|
|
catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
|
|
set exec_output [prune_warnings $exec_output]
|
|
|
|
if ![string match "" $exec_output] then {
|
|
send_log "$exec_output\n"
|
|
verbose "$exec_output" 1
|
|
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
|
|
}
|
|
|
|
#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 { [ 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 { ![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:"
|
|
rename "perror" "check_as_cfi_perror"
|
|
proc perror { args } { }
|
|
set success [ld_assemble $as $as_file "/dev/null"]
|
|
rename "perror" ""
|
|
rename "check_as_cfi_perror" "perror"
|
|
#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
|
|
}
|