From bc3a7e3fe2dcc1679672e37faeaca727f2634eec Mon Sep 17 00:00:00 2001
From: Alexey Samsonov <samsonov@google.com>
Date: Wed, 6 Jun 2012 06:47:26 +0000
Subject: [PATCH] [Sanitizer] add sanitizer_common.h for routines shared
 between TSan and ASan runtimes. Use __sanitizer::Die() in TSan.

llvm-svn: 158050
---
 .../lib/sanitizer_common/sanitizer_common.h   | 28 +++++++++++++++++++
 .../lib/sanitizer_common/sanitizer_libc.h     |  4 ---
 .../lib/tsan/rtl/tsan_platform_linux.cc       | 12 +++++---
 compiler-rt/lib/tsan/rtl/tsan_rtl.h           |  2 +-
 4 files changed, 37 insertions(+), 9 deletions(-)
 create mode 100644 compiler-rt/lib/sanitizer_common/sanitizer_common.h

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common.h b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
new file mode 100644
index 000000000000..8e18d3f8867c
--- /dev/null
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
@@ -0,0 +1,28 @@
+//===-- sanitizer_common.h --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is shared between AddressSanitizer and ThreadSanitizer
+// run-time libraries.
+// It defines common functions and classes that are used in both runtimes.
+// Implementation of some functions are provided in sanitizer_common, while
+// others must be defined by run-time library itself.
+//===----------------------------------------------------------------------===//
+#ifndef SANITIZER_COMMON_H
+#define SANITIZER_COMMON_H
+
+#include "sanitizer_internal_defs.h"
+
+namespace __sanitizer {
+
+// NOTE: Functions below must be defined in each run-time.
+void NORETURN Die();
+
+}  // namespace __sanitizer
+
+#endif  // SANITIZER_COMMON_H
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_libc.h b/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
index 5b42df997a32..c167079b4f6d 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
@@ -11,16 +11,12 @@
 // run-time libraries.
 // These tools can not use some of the libc functions directly because those
 // functions are intercepted. Instead, we implement a tiny subset of libc here.
-//
-// We also define several basic types here to avoid using system headers
-// as the latter complicate portability of this low-level code.
 //===----------------------------------------------------------------------===//
 #ifndef SANITIZER_LIBC_H
 #define SANITIZER_LIBC_H
 
 #include "sanitizer_internal_defs.h"
 
-// No code here yet. Will move more code in the next changes.
 namespace __sanitizer {
 
 void MiniLibcStub();
diff --git a/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc b/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc
index 6d6290adfdb8..e60b821ec14f 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc
@@ -39,6 +39,14 @@
 
 extern "C" int arch_prctl(int code, __sanitizer::uptr *addr);
 
+namespace __sanitizer {
+
+void Die() {
+  _exit(1);
+}
+
+}  // namespace __sanitizer
+
 namespace __tsan {
 
 static uptr g_tls_size;
@@ -56,10 +64,6 @@ ScopedInRtl::~ScopedInRtl() {
   CHECK_EQ(in_rtl_, thr_->in_rtl);
 }
 
-void Die() {
-  _exit(1);
-}
-
 uptr GetShadowMemoryConsumption() {
   return 0;
 }
diff --git a/compiler-rt/lib/tsan/rtl/tsan_rtl.h b/compiler-rt/lib/tsan/rtl/tsan_rtl.h
index fc5852434776..f89f2420b57a 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_rtl.h
+++ b/compiler-rt/lib/tsan/rtl/tsan_rtl.h
@@ -26,6 +26,7 @@
 #ifndef TSAN_RTL_H
 #define TSAN_RTL_H
 
+#include "sanitizer_common/sanitizer_common.h"
 #include "tsan_clock.h"
 #include "tsan_defs.h"
 #include "tsan_flags.h"
@@ -390,7 +391,6 @@ void ALWAYS_INLINE INLINE StatInc(ThreadState *thr, StatType typ, u64 n = 1) {
 void InitializeShadowMemory();
 void InitializeInterceptors();
 void InitializeDynamicAnnotations();
-void Die() NORETURN;
 
 void ReportRace(ThreadState *thr);
 bool OutputReport(const ScopedReport &srep,