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: 171151

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

llvm-svn: 171106

llvm-svn: 171105

llvm-svn: 171104

Check for conflicting memory mappings before attempting to map shadow.
Helps avoid segfault on Linux with disabled ASLR.

llvm-svn: 171100

[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

llvm-svn: 171071

llvm-svn: 171065

llvm-svn: 171062

llvm-svn: 171059

[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

llvm-svn: 171057

[sanitizer] increase the maximum size class of the fast allocator. This should save quite a bit of memory in tsan/msan (and later in asan). This also puts more stress on the large allocator. Add a couple of checks

llvm-svn: 171055

(the old code won't work with new allocator)

llvm-svn: 171054

[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

llvm-svn: 171035

llvm-svn: 171034

(this breaks RPM packages)

llvm-svn: 171033

[sanitizer] rework the size class map in the sanitizer allocator: make the differences between size classes more uniform.

llvm-svn: 171031

to prevent assertion failures on code like "write(-1, ...)"

llvm-svn: 171030

[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: 170896

llvm-svn: 170895

llvm-svn: 170894

llvm-svn: 170893

llvm-svn: 170892

llvm-svn: 170891

llvm-svn: 170889

llvm-svn: 170888

llvm-svn: 170885