Module Name: src
Committed By: christos
Date: Thu Jan 17 20:37:20 UTC 2019
Modified Files:
src/external/gpl3/gcc/dist/libsanitizer/asan: asan_thread.cc
Log Message:
Use the proper stack aligment for the architecture. Fixes broken asan
tests on i386.
To generate a diff of this commit:
cvs rdiff -u -r1.1.1.3 -r1.2 \
src/external/gpl3/gcc/dist/libsanitizer/asan/asan_thread.cc
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/external/gpl3/gcc/dist/libsanitizer/asan/asan_thread.cc
diff -u src/external/gpl3/gcc/dist/libsanitizer/asan/asan_thread.cc:1.1.1.3 src/external/gpl3/gcc/dist/libsanitizer/asan/asan_thread.cc:1.2
--- src/external/gpl3/gcc/dist/libsanitizer/asan/asan_thread.cc:1.1.1.3 Thu Feb 1 20:58:47 2018
+++ src/external/gpl3/gcc/dist/libsanitizer/asan/asan_thread.cc Thu Jan 17 15:37:20 2019
@@ -9,6 +9,10 @@
//
// Thread-related code.
//===----------------------------------------------------------------------===//
+
+#define __EXPOSE_STACK
+#include <sys/param.h>
+
#include "asan_allocator.h"
#include "asan_interceptors.h"
#include "asan_poisoning.h"
@@ -221,7 +225,10 @@ bool AsanThread::GetStackFrameAccessByAd
access->frame_descr = (const char *)((uptr*)bottom)[1];
return true;
}
- uptr aligned_addr = addr & ~(SANITIZER_WORDSIZE/8 - 1); // align addr.
+#ifndef STACK_ALIGNBYTES
+# define STACK_ALIGNBYTES (~(SANITIZER_WORDSIZE/8 - 1))
+#endif
+ uptr aligned_addr = addr & STACK_ALIGNBYTES; // align addr.
u8 *shadow_ptr = (u8*)MemToShadow(aligned_addr);
u8 *shadow_bottom = (u8*)MemToShadow(bottom);
