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tsan: better diagnostics for invalid addresses passed to free() 

llvm-svn: 187980
This commit is contained in:
Dmitry Vyukov 2013-08-08 13:47:50 +00:00
parent 938f68816a
commit 87bf47894c
1 changed files with 4 additions and 1 deletions
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5
compiler-rt/lib/sanitizer_common/sanitizer_allocator.h
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@ -1016,7 +1016,10 @@ class LargeMmapAllocator {
// At least page_size_/2 metadata bytes is available.
void *GetMetaData(const void *p) {
// Too slow: CHECK_EQ(p, GetBlockBegin(p));
CHECK(IsAligned(reinterpret_cast<uptr>(p), page_size_));
if (!IsAligned(reinterpret_cast<uptr>(p), page_size_)) {
Printf("%s: bad pointer %p\n", SanitizerToolName, p);
CHECK(IsAligned(reinterpret_cast<uptr>(p), page_size_));
}
return GetHeader(p) + 1;
}