llvm-svn: 170666

llvm-svn: 170514

[asan] asan_allocator2: improve FindHeapChunkByAddress to find memory chunks to the left of a given address. Almost all tests pass with the new allocator now, only 6 are left to fix.

llvm-svn: 170511

llvm-svn: 170507

llvm-svn: 170498

llvm-svn: 170434

[Sanitizer] Expose StackTrace::GetPreviousInstructionPc() to get PC of call instruction from return address

llvm-svn: 170424

llvm-svn: 170418

llvm-svn: 170413

[sanitizer] fix a bug that has crept into the sanitizer allocator and caused SEGV on allocations between 1Mb and 2Mb, improve the test

llvm-svn: 170274

llvm-svn: 170208

llvm-svn: 170206

llvm-svn: 170204

llvm-svn: 170202

llvm-svn: 170191

llvm-svn: 170190

[Sanitizer] use INTERCEPT_FUNCTION(foo) instead of CHECK(INTERCEPT_FUNCTION(foo)) - this check may fail on Linux if user program defines its own version of library function foo

llvm-svn: 170189

llvm-svn: 170187

llvm-svn: 170186

llvm-svn: 170124

llvm-svn: 170123

[asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder

llvm-svn: 170117

[Sanitizer] Add new header - sanitizer_platform_interceptors.h, which should define whether or not given function should be intercepted on a given platform.

llvm-svn: 170115

llvm-svn: 170114

llvm-svn: 170112

[sanitizer] replace size_t with SIZE_T in interceptors (same for ssize_t, off_t and off64_t). This is done to avoid confusion and to make the code work with compilers that define size_t w/o any includes (MSVC)

llvm-svn: 170103

llvm-svn: 170101

llvm-svn: 170099

llvm-svn: 170098

[sanitizer] change the way SizeClassAllocator64 allocated memory from the system: instead of one huge mmap(NORESERVE) it does one huge mprotect and then does small on-demand mmaps. This allows us to call OnMap callbacks which are required to poison newly allocated memory in asan

llvm-svn: 170097

llvm-svn: 169985

llvm-svn: 169969

llvm-svn: 169968

[asan] add sanitizer_common/sanitizer_common_interceptors.h with pread/pread64/read interceptors. Use it in asan. Add asan tests for pread/etc. Add FIXME to tsan/msan interceptors

llvm-svn: 169966

llvm-svn: 169864

llvm-svn: 169861

llvm-svn: 169836

the client programs to notify the tools that sandboxing is about to be turned on.

llvm-svn: 169732

llvm-svn: 169620

llvm-svn: 169606