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# Copyright (C) 2013-2016 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# Return 1 if compilation with -fsanitize=thread is error-free for trivial
# code, 0 otherwise. Also set what to do by default here, depending on the
# result of a runtime test.
proc check_effective_target_fsanitize_thread {} {
global individual_timeout
global dg-do-what-default
if ![check_no_compiler_messages fsanitize_thread executable {
int main (void) { return 0; }
}] {
return 0
}
# Lower timeout value in case test does not terminate properly.
set individual_timeout 20
if [check_runtime_nocache tsan_works {
int main () { return 0; }
}] {
set dg-do-what-default run
} else {
set dg-do-what-default link
}
unset individual_timeout
return 1
}
#
# tsan_link_flags -- compute library path and flags to find libtsan.
# (originally from g++.exp)
#
proc tsan_link_flags { paths } {
global srcdir
global ld_library_path
global shlib_ext
global tsan_saved_library_path
set gccpath ${paths}
set flags ""
set shlib_ext [get_shlib_extension]
set tsan_saved_library_path $ld_library_path
if { $gccpath != "" } {
if { [file exists "${gccpath}/libsanitizer/tsan/.libs/libtsan.a"]
|| [file exists "${gccpath}/libsanitizer/tsan/.libs/libtsan.${shlib_ext}"] } {
append flags " -B${gccpath}/libsanitizer/tsan/ "
append flags " -L${gccpath}/libsanitizer/tsan/.libs "
append ld_library_path ":${gccpath}/libsanitizer/tsan/.libs"
}
} else {
global tool_root_dir
set libtsan [lookfor_file ${tool_root_dir} libtsan]
if { $libtsan != "" } {
append flags "-L${libtsan} "
append ld_library_path ":${libtsan}"
}
}
set_ld_library_path_env_vars
return "$flags"
}
#
# tsan_init -- called at the start of each subdir of tests
#
proc tsan_init { args } {
global TEST_ALWAYS_FLAGS
global ALWAYS_CXXFLAGS
global TOOL_OPTIONS
global tsan_saved_TEST_ALWAYS_FLAGS
global tsan_saved_ALWAYS_CXXFLAGS
global dg-do-what-default
global tsan_saved_dg-do-what-default
set link_flags ""
if ![is_remote host] {
if [info exists TOOL_OPTIONS] {
set link_flags "[tsan_link_flags [get_multilibs ${TOOL_OPTIONS}]]"
} else {
set link_flags "[tsan_link_flags [get_multilibs]]"
}
}
if [info exists dg-do-what-default] {
set tsan_saved_dg-do-what-default ${dg-do-what-default}
}
if [info exists TEST_ALWAYS_FLAGS] {
set tsan_saved_TEST_ALWAYS_FLAGS $TEST_ALWAYS_FLAGS
}
if [info exists ALWAYS_CXXFLAGS] {
set tsan_saved_ALWAYS_CXXFLAGS $ALWAYS_CXXFLAGS
set ALWAYS_CXXFLAGS [concat "{ldflags=$link_flags}" $ALWAYS_CXXFLAGS]
set ALWAYS_CXXFLAGS [concat "{additional_flags=-fsanitize=thread -g}" $ALWAYS_CXXFLAGS]
} else {
if [info exists TEST_ALWAYS_FLAGS] {
set TEST_ALWAYS_FLAGS "$link_flags -fsanitize=thread -g $TEST_ALWAYS_FLAGS"
} else {
set TEST_ALWAYS_FLAGS "$link_flags -fsanitize=thread -g"
}
}
}
#
# tsan_finish -- called at the end of each subdir of tests
#
proc tsan_finish { args } {
global TEST_ALWAYS_FLAGS
global tsan_saved_TEST_ALWAYS_FLAGS
global tsan_saved_ALWAYS_CXXFLAGS
global dg-do-what-default
global tsan_saved_dg-do-what-default
global tsan_saved_library_path
global ld_library_path
if [info exists tsan_saved_ALWAYS_CXXFLAGS ] {
set ALWAYS_CXXFLAGS $tsan_saved_ALWAYS_CXXFLAGS
} else {
if [info exists tsan_saved_TEST_ALWAYS_FLAGS] {
set TEST_ALWAYS_FLAGS $tsan_saved_TEST_ALWAYS_FLAGS
} else {
unset TEST_ALWAYS_FLAGS
}
}
if [info exists tsan_saved_dg-do-what-default] {
set dg-do-what-default ${tsan_saved_dg-do-what-default}
} else {
unset dg-do-what-default
}
set ld_library_path $tsan_saved_library_path
set_ld_library_path_env_vars
clear_effective_target_cache
}
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