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[ASan] Fix use-after-scope in COMMON_INTERCEPTOR_ENTER implementation.
author
Alexey Samsonov
<vonosmas@gmail.com>
Tue, 27 Jan 2015 22:50:19 +0000
(22:50 +0000)
committer
Alexey Samsonov
<vonosmas@gmail.com>
Tue, 27 Jan 2015 22:50:19 +0000
(22:50 +0000)
Make sure "void *ctx" doesn't point to an object which already went out
of scope. This might also fix -Wuninitialized warnings GCC 4.7 produces
while building ASan runtime.
llvm-svn: 227258
compiler-rt/lib/asan/asan_interceptors.cc
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diff --git
a/compiler-rt/lib/asan/asan_interceptors.cc
b/compiler-rt/lib/asan/asan_interceptors.cc
index
2074968
..
e18790a
100644
(file)
--- a/
compiler-rt/lib/asan/asan_interceptors.cc
+++ b/
compiler-rt/lib/asan/asan_interceptors.cc
@@
-142,10
+142,10
@@
DECLARE_REAL_AND_INTERCEPTOR(void, free, void *)
#define COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, size) \
ASAN_READ_RANGE(ctx, ptr, size)
#define COMMON_INTERCEPTOR_ENTER(ctx, func, ...) \
+ ASAN_INTERCEPTOR_ENTER(ctx, func); \
do { \
if (asan_init_is_running) \
return REAL(func)(__VA_ARGS__); \
- ASAN_INTERCEPTOR_ENTER(ctx, func); \
if (SANITIZER_MAC && UNLIKELY(!asan_inited)) \
return REAL(func)(__VA_ARGS__); \
ENSURE_ASAN_INITED(); \