[PATCH] D15287: [tsan] Fix memcmp interceptor to correctly use COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED

Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 8 06:51:32 PST 2015


This revision was automatically updated to reflect the committed changes.
Closed by commit rL255019: [tsan] Fix memcmp interceptor to correctly useā€¦ (authored by kuba.brecka).

Changed prior to commit:
  http://reviews.llvm.org/D15287?vs=42060&id=42173#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D15287

Files:
  compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc

Index: compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
===================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
@@ -403,10 +403,10 @@
                               const void *s1, const void *s2, uptr n)
 
 INTERCEPTOR(int, memcmp, const void *a1, const void *a2, uptr size) {
-  void *ctx;
-  COMMON_INTERCEPTOR_ENTER(ctx, memcmp, a1, a2, size);
   if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
     return internal_memcmp(a1, a2, size);
+  void *ctx;
+  COMMON_INTERCEPTOR_ENTER(ctx, memcmp, a1, a2, size);
   CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), a1,
                              a2, size);
   if (common_flags()->intercept_memcmp) {


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