llvm-svn: 172059

[asan] asan_allocator2: do less work under the quarantine lock; make the strcasecmp test more resistant to the contents of unaddressable memory 

llvm-svn: 172048

llvm-svn: 172045

llvm-svn: 171223

[asan] add a new interface function __asan_describe_address, useful for running asan-ified binary under a debugger (e.g. gdb)

llvm-svn: 171217

llvm-svn: 171200

[asan] implement more strict checking for memset/etc parameters. Instead of checking the first and the last byte, we check the entire shadow region. This costs ~10 slowdown for the instrumented functions. Motivated by a nasty memset-buffer-overflow-by-140-bytes in chrome which was reported as a use-after-free or not at all

llvm-svn: 171198

llvm-svn: 171188

llvm-svn: 171181

llvm-svn: 171161

Define COMPILER_RT_CAN_EXECUTE_TESTS variable on platforms where we can produce working binaries and use it in build rules for sanitizers tests

llvm-svn: 171160

llvm-svn: 171147

[asan] relax asan/lit_tests/malloc_delete_mismatch.cc to make it pass on Mac 10.7 (where extra frames creep in between malloc and main)

llvm-svn: 171145

[asan/tsan] when unmapping a chunk of user memory, apply madvise(MADV_DONTNEED) to the corresponding chunk of shadow memory. Also update sanitizer_allocator64_testlib.cc

llvm-svn: 171144

llvm-svn: 171112

[asan] asan_allocator2: do not align the requested size to the redzone size (saves a bit more memory)

llvm-svn: 171111

[asan] asan_allocator2: implement adaptive redzones. Now with asan_allocator2 allocations <= 48 bytes have 16 byte redzone, allocations of 48-96 bytes -- have 32 bytes redzone, etc (max redzone is 2048). If ASAN_OPTIONS=redzone=n is set, it changes the minimal redzone size

llvm-svn: 171107

[asan] asan_allocator2: by default use the StackDepot to store the stack traces instead of storing them in the redzones

llvm-svn: 171099

[asan] asan_allocator2: store the user requested size in just 32 bits (larger sizes use metadata). This allows to put one more 32-bit field into the chunk header

llvm-svn: 171089

[asan] add a test for right OOB with special large sizes. Fix this test in asan_allocator2. More test tweaking for allocator2

llvm-svn: 171058

[asan] properly define ASAN_LOW_MEMORY. Due to a mistake it has been always true causing redzone and quarantine sizes to be smaller than it was some time before (and out of sync with the documentation). Also make one test less greedy

llvm-svn: 171052

llvm-svn: 171036

[asan] asan_allocator2 fix two asserts that happen on full chrome: a) memalign called with 0 size and large alignment and b) malloc called after TSD has been destructed

llvm-svn: 170900

[Sanitizer] CMake build rules for unittests: depend on headers when compiling a file with custom clang.

llvm-svn: 170897

llvm-svn: 170888

llvm-svn: 170878

[Sanitizer] Don't implicitly add object files to the list of dependencies when building compiler_rt unittests. Fix sanitizer_common and asan build rules accordingly. This also fixes check-sanitizer command on Ninja.

llvm-svn: 170870

[asan] add a flag alloc_dealloc_mismatch (off by default for now) which finds malloc/delete, new/free, new/delete[], etc mismatches

llvm-svn: 170869

llvm-svn: 170843

llvm-svn: 170701

llvm-svn: 170697

This test didn't pass for me locally because of "T0's stack" being converted to "T0'short stack" by c++filt.
Strange enough this doesn't show up on our bots.

llvm-svn: 170690

llvm-svn: 170687

[asan] add a flag poison_heap to allow better allocator benchmarking, implemenet malloc_stats() on Linux

llvm-svn: 170685

llvm-svn: 170680

llvm-svn: 170677

llvm-svn: 170670

llvm-svn: 170552

llvm-svn: 170549

llvm-svn: 170548