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| author | Kostya Serebryany <kcc@google.com> | 2013-03-28 08:41:49 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2013-03-28 08:41:49 +0000 |
| commit | 83b47072ff373766b8f424e31c278cfa31ab46a3 (patch) | |
| tree | e48bf7558a33dc52da3bf130db4136eacdde9cdf /lib | |
| parent | c446611d505593bb8e79ea98df87479e24cce68b (diff) | |
| download | compiler-rt-83b47072ff373766b8f424e31c278cfa31ab46a3.tar.gz compiler-rt-83b47072ff373766b8f424e31c278cfa31ab46a3.tar.bz2 compiler-rt-83b47072ff373766b8f424e31c278cfa31ab46a3.tar.xz | |
[tsan] don't use -fno-builtin for tests; add a test for a false negative bug (inlined memcpy is not instrumented)
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@178228 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/tsan/lit_tests/inlined_memcpy_race.cc | 27 | ||||
| -rw-r--r-- | lib/tsan/lit_tests/lit.cfg | 1 | ||||
| -rwxr-xr-x | lib/tsan/lit_tests/test_output.sh | 2 |
3 files changed, 28 insertions, 2 deletions
diff --git a/lib/tsan/lit_tests/inlined_memcpy_race.cc b/lib/tsan/lit_tests/inlined_memcpy_race.cc new file mode 100644 index 00000000..33dbf189 --- /dev/null +++ b/lib/tsan/lit_tests/inlined_memcpy_race.cc @@ -0,0 +1,27 @@ +// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s +// Currently, we don't report a race here: +// http://code.google.com/p/thread-sanitizer/issues/detail?id=16 +#include <pthread.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +int x[4], y[4]; + +void *Thread1(void *unused) { + memcpy(x, y, 16); + return NULL; +} + +int main() { + pthread_t t[2]; + pthread_create(&t[0], NULL, Thread1, NULL); + pthread_create(&t[1], NULL, Thread1, NULL); + pthread_join(t[0], NULL); + pthread_join(t[1], NULL); + printf("PASS\n"); + return 0; +} + +// CHECK-NOT: ThreadSanitizer diff --git a/lib/tsan/lit_tests/lit.cfg b/lib/tsan/lit_tests/lit.cfg index 7e2db7b8..e2d2bae4 100644 --- a/lib/tsan/lit_tests/lit.cfg +++ b/lib/tsan/lit_tests/lit.cfg @@ -70,7 +70,6 @@ config.environment['TSAN_OPTIONS'] = tsan_options # FIXME: Review the set of required flags and check if it can be reduced. clang_tsan_cflags = ("-fsanitize=thread " + "-fPIE " - + "-fno-builtin " + "-g " + "-Wall " + "-pie " diff --git a/lib/tsan/lit_tests/test_output.sh b/lib/tsan/lit_tests/test_output.sh index f4f8a5c8..cffc026e 100755 --- a/lib/tsan/lit_tests/test_output.sh +++ b/lib/tsan/lit_tests/test_output.sh @@ -12,7 +12,7 @@ BLACKLIST=$ROOTDIR/lit_tests/Helpers/blacklist.txt : ${FILECHECK:=FileCheck} # TODO: add testing for all of -O0...-O3 -CFLAGS="-fsanitize=thread -fsanitize-blacklist=$BLACKLIST -fPIE -O1 -g -fno-builtin -Wall" +CFLAGS="-fsanitize=thread -fsanitize-blacklist=$BLACKLIST -fPIE -O1 -g -Wall" LDFLAGS="-pie -lpthread -ldl $ROOTDIR/rtl/libtsan.a" test_file() { |