libsanitizer/

	* tsan: New directory. Import tsan runtime from llvm.
	* configure.ac: Add 64 bits tsan build.
	* Makefile.am: Likewise.
	* configure: Regenerated.
	* Makefile.in: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193737 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 52 insertions, 0 deletions

diff --git a/libsanitizer/tsan/tsan_interceptors.h b/libsanitizer/tsan/tsan_interceptors.h
new file mode 100644
index 00000000000..2e8c553172c
--- /dev/null
+++ b/libsanitizer/tsan/tsan_interceptors.h
@@ -0,0 +1,52 @@
+//===-- tsan_interceptors.h -------------------------------------*- C++ -*-===//
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of ThreadSanitizer (TSan), a race detector.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TSAN_INTERCEPTORS_H
+#define TSAN_INTERCEPTORS_H
+
+#include "interception/interception.h"
+#include "sanitizer_common/sanitizer_stacktrace.h"
+#include "tsan_rtl.h"
+
+namespace __tsan {
+
+class ScopedInterceptor {
+ public:
+  ScopedInterceptor(ThreadState *thr, const char *fname, uptr pc);
+  ~ScopedInterceptor();
+ private:
+  ThreadState *const thr_;
+  const int in_rtl_;
+};
+
+#define SCOPED_INTERCEPTOR_RAW(func, ...) \
+    ThreadState *thr = cur_thread(); \
+    StatInc(thr, StatInterceptor); \
+    StatInc(thr, StatInt_##func); \
+    const uptr caller_pc = GET_CALLER_PC(); \
+    ScopedInterceptor si(thr, #func, caller_pc); \
+    /* Subtract one from pc as we need current instruction address */ \
+    const uptr pc = __sanitizer::StackTrace::GetCurrentPc() - 1; \
+    (void)pc; \
+/**/
+
+#define SCOPED_TSAN_INTERCEPTOR(func, ...) \
+    SCOPED_INTERCEPTOR_RAW(func, __VA_ARGS__); \
+    if (thr->in_rtl > 1) \
+      return REAL(func)(__VA_ARGS__); \
+/**/
+
+#define TSAN_INTERCEPTOR(ret, func, ...) INTERCEPTOR(ret, func, __VA_ARGS__)
+#define TSAN_INTERCEPT(func) INTERCEPT_FUNCTION(func)
+
+}  // namespace __tsan
+
+#endif  // TSAN_INTERCEPTORS_H