llvm-svn: 176938

llvm-svn: 176937

llvm-svn: 176935

llvm-svn: 176932

[Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev.

llvm-svn: 176931

[sanitizer] use fewer size classes in the allocator to reduce the memory footprint. There is no all-size-fits-all constant here, but this change is positive or neutral on several large apps I've tested

llvm-svn: 176855

[sanitizer] simplify the allocator's SizeClassMap: do not require an extra template parameter, instead compute it in flight. No functionality change

llvm-svn: 176853

llvm-svn: 176805

[ASan] Reduce the local buffer size in Report() not to fail the check enforced when building TSan runtime.

llvm-svn: 176804

[ASan] Try to use a small (512 bytes) stack-local buffer in Report() for short messages, fall back to MmapOrDie() in the case of a failure.
This shall eliminate most of the cryptic "ERROR: failed to mmap" messages caused by recursively calling MmapOrDie() from MmapOrDie().

llvm-svn: 176802

llvm-svn: 176800

llvm-svn: 176799

pthread_join() returns an error code, not the result of the
pthread_create() function like I thought.

llvm-svn: 176554

Summary:
Adds a test for this case, which was reduced from a chromium build of
WebKit's DumpRenderTree.

Reviewers: eugenis

CC: glider

Differential Revision: http://llvm-reviews.chandlerc.com/D495

llvm-svn: 176552

llvm-svn: 176479

llvm-svn: 176478

llvm-svn: 176338

[Sanitizer] Relax ThreadLister tests to allow possible pre-existing threads. Do proper mutex destruction. Patch by Sergey Matveev

llvm-svn: 176249

llvm-svn: 176183

[UBSan] Use common report decorator to print colorful diagnostics in UBSan, and be more consistent w/ Printf/RawWrite

llvm-svn: 176182

ThreadLister is a Linux-specific class for obtaining the thread IDs of a process from procfs (/proc/<pid>/task/). It will be used by leak checking code.
Also add several syscall wrappers which will be required by the same code that uses ThreadLister, but are not used in ThreadLister itself.
Patch by Sergey Matveev

llvm-svn: 176179

llvm-svn: 176175

llvm-svn: 176091

[sanitizer] A low-level vector implementation to be used in leak checking code. Patch by Sergey Matveev

llvm-svn: 176089

llvm-svn: 176085

llvm-svn: 176077

llvm-svn: 176020

[Sanitizer] fix signed/unsigned compare warnings in sanitizer_stacktrace_test. Build sanitizer_common tests with -Werror as we use predictable just-built Clang for building them

llvm-svn: 176014

Summary:
The test sets up fake x86-style fp+retaddr frames, since that's all the
unwinder works with.

Reviewers: kcc

CC: eugenis

Differential Revision: http://llvm-reviews.chandlerc.com/D445

llvm-svn: 175893

Using > instead of >= ensures that each frame deref makes progress and
that we eventually terminate.

Issue: https://code.google.com/p/address-sanitizer/issues/detail?id=162
llvm-svn: 175661

llvm-svn: 175629

llvm-svn: 175622

llvm-svn: 175615

llvm-svn: 175515

This way it fits on a random 1G device.

llvm-svn: 175513

llvm-svn: 175511

This patch makes asan instrument memory accesses with unusual sizes (e.g. 5 bytes or 10 bytes), e.g. long double or
packed structures.
Instrumentation is done with two 1-byte checks
(first and last bytes) and if the error is found
__asan_report_load_n(addr, real_size) or
__asan_report_store_n(addr, real_size)
is called.

asan-rt part

Also fix lint.

llvm-svn: 175508

execle(argv[0], ...) is wrong, because argv[0] may contain a PATH-resolvable
program name. Execute /proc/self/exe instead.

llvm-svn: 175504

llvm-svn: 175503

llvm-svn: 175499