From: Kostya Serebryany <kcc@google.com>
Date: Fri, 15 Nov 2013 10:31:14 +0000 (+0000)
Subject: fix PR sanitizer/58994
X-Git-Tag: releases/gcc-4.9.0~2770
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c8e1377bf99a81141b2216e7826ea69978968627;p=thirdparty%2Fgcc.git

fix PR sanitizer/58994

From-SVN: r204838
---

diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
index 47f93db4e7d0..a0a8a8e6db05 100644
--- a/libsanitizer/ChangeLog
+++ b/libsanitizer/ChangeLog
@@ -1,3 +1,11 @@
+2013-11-15  Kostya Serebryany  <kcc@google.com>
+
+	PR sanitizer/58994
+        Backport from upstream revision 194573
+        * asan/asan_interceptors.cc (COMMON_INTERCEPTOR_ENTER): Fall
+        back to the original functions in the common libsanitizer
+        interceptors and the __cxa_atexit() interceptor on Darwin.
+
 2013-11-13  Peter Bergner  <bergner@vnet.ibm.com>
 
 	PR sanitizer/59009
diff --git a/libsanitizer/asan/asan_interceptors.cc b/libsanitizer/asan/asan_interceptors.cc
index 6fa968da0a38..72f7aae814a9 100644
--- a/libsanitizer/asan/asan_interceptors.cc
+++ b/libsanitizer/asan/asan_interceptors.cc
@@ -106,12 +106,13 @@ DECLARE_REAL_AND_INTERCEPTOR(void, free, void *)
 #define COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, size) \
   ASAN_WRITE_RANGE(ptr, size)
 #define COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, size) ASAN_READ_RANGE(ptr, size)
-#define COMMON_INTERCEPTOR_ENTER(ctx, func, ...)              \
-  do {                                                        \
-    if (asan_init_is_running) return REAL(func)(__VA_ARGS__); \
-    ctx = 0;                                                  \
-    (void) ctx;                                               \
-    ENSURE_ASAN_INITED();                                     \
+#define COMMON_INTERCEPTOR_ENTER(ctx, func, ...)                       \
+  do {                                                                 \
+    if (asan_init_is_running) return REAL(func)(__VA_ARGS__);          \
+    ctx = 0;                                                           \
+    (void) ctx;                                                        \
+    if (SANITIZER_MAC && !asan_inited) return REAL(func)(__VA_ARGS__); \
+    ENSURE_ASAN_INITED();                                              \
   } while (false)
 #define COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd) \
   do {                                         \
@@ -634,6 +635,9 @@ static void AtCxaAtexit(void *unused) {
 #if ASAN_INTERCEPT___CXA_ATEXIT
 INTERCEPTOR(int, __cxa_atexit, void (*func)(void *), void *arg,
             void *dso_handle) {
+#if SANITIZER_MAC
+  if (!asan_inited) return REAL(__cxa_atexit)(func, arg, dso_handle);
+#endif
   ENSURE_ASAN_INITED();
   int res = REAL(__cxa_atexit)(func, arg, dso_handle);
   REAL(__cxa_atexit)(AtCxaAtexit, 0, 0);