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authorKostya Serebryany <kcc@google.com>2016-08-26 00:06:03 +0000
committerKostya Serebryany <kcc@google.com>2016-08-26 00:06:03 +0000
commit7c5ae7cbc60f1196bd4cde77c68f4b6995596215 (patch)
treefee79146dcf4b8db1758bfb4111e88854541e704 /compiler-rt/lib/scudo/scudo_allocator.cpp
parent1426f59a76591ed507d81f1593e34fd3894b8231 (diff)
downloadbcm5719-llvm-7c5ae7cbc60f1196bd4cde77c68f4b6995596215.tar.gz
bcm5719-llvm-7c5ae7cbc60f1196bd4cde77c68f4b6995596215.zip
[sanitizer] enable random shuffling the memory chunks inside the allocator, under a flag. Set this flag for the scudo allocator, add a test.
llvm-svn: 279793
Diffstat (limited to 'compiler-rt/lib/scudo/scudo_allocator.cpp')
-rw-r--r--compiler-rt/lib/scudo/scudo_allocator.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler-rt/lib/scudo/scudo_allocator.cpp b/compiler-rt/lib/scudo/scudo_allocator.cpp
index b5d8fc8bf87..d5284a53e12 100644
--- a/compiler-rt/lib/scudo/scudo_allocator.cpp
+++ b/compiler-rt/lib/scudo/scudo_allocator.cpp
@@ -38,6 +38,8 @@ struct AP {
static const uptr kMetadataSize = 0;
typedef DefaultSizeClassMap SizeClassMap;
typedef NoOpMapUnmapCallback MapUnmapCallback;
+ static const uptr kFlags =
+ SizeClassAllocator64FlagMasks::kRandomShuffleChunks;
};
typedef SizeClassAllocator64<AP> PrimaryAllocator;
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