when trying to free memory that actually belongs to the system purgeable zone, use malloc_zone_free(malloc_default_purgeable_zone(), ptr) instead of asan_free().

llvm-svn: 161661

llvm-svn: 161576

Test that child threads use the ASan allocator, that allocated memory can be passed to another thread and deallocated on it.
This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=81

llvm-svn: 160630

llvm-svn: 159933

llvm-svn: 159824

do so by factoring the CFAllocator logic into ReplaceCFAllocator(), which is called from
either the __CFInitialize wrapper or __asan_init(), depending on which of them is called later.

llvm-svn: 159822

A portable way to check whether __CFInitialize has been called: compare kCFAllocatorSystemDefault._base._cfisa to 0.
This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=87 on both Lion and Snow Leopard.

llvm-svn: 159821

This change may cause http://code.google.com/p/address-sanitizer/issues/detail?id=87 to re-appear on Lion.

llvm-svn: 159819

Fix http://code.google.com/p/address-sanitizer/issues/detail?id=87 by making sure we replace the default CFAllocator only after __CFInitialize has been called.

llvm-svn: 159749

These callbacks assume that the memory belongs to asan_zone, so it's incorrect to pass it to another one.
If a need for this appears (e.g. system libraries free the memory using wrong zone), it should be documented.

llvm-svn: 159713

Introduce the mac_ignore_invalid_free flag (0 by default) which makes both cf_free and mz_free ignore invalid free invocations and leak memory.

llvm-svn: 158885

Actually intercept free() to ensure that the deallocations caused by other functions directly calling it are routed to our allocator.
For the allocations that do not belong to any malloc zone check whether they're padded with a pointer to ASan's CFAllocator. If so, free the original (unpadded) pointer.
This should fix AddressSanitizerMac.NSURLDeallocation and issue 70.

llvm-svn: 158863

[Sanitizer]: Introduce a common internal printf function. For now, also use tool-specific wrappers TsanPrintf (its output is controlled by TSan flags) and AsanPrintf (which copies its results to the ASan-private buffer). Supported formats: %[z]{d,u,x}, %s, %p. Re-write all format strings in TSan according to this format (this should have no effect on 64-bit platforms).

llvm-svn: 158065

llvm-svn: 157927

llvm-svn: 157746

llvm-svn: 153641

Make sure to properly ifdef out an unused function on OSX < 10.6.  PR12136.  Patch from Jeremy Huddleston.

llvm-svn: 152085

llvm-svn: 150083

llvm-svn: 150073

llvm-svn: 148287

llvm-svn: 145645

llvm-svn: 145631

AddressSanitizer run-time library. Not yet integrated with the compiler-rt build system, but can be built using the old makefile. See details in README.txt

llvm-svn: 145463