llvm-svn: 182469

Multiple connected changes:
- Ignore reads from nested interceptors.
- Check shadow on reads from common interceptors.
- getaddrinfo interceptor.

llvm-svn: 182466

llvm-svn: 182465

llvm-svn: 182463

[asan] attempting to fix the debian bot (on ubuntu the test builds; on debian it complains that _SC_PAGESIZE is unknown)

llvm-svn: 182462

[asan] fix dlclose-test to work with non-4K pages. Properly disable interface_symbols_linux on non-x86

llvm-svn: 182461

[asan] workaround for asan bug 189 (swapcontext followed by throw gets OOM kill). Also, disable swapcontext_test on non-x86. Fix lint

llvm-svn: 182456

llvm-svn: 182453

llvm-svn: 182435

llvm-svn: 182420

Keeps it consistent between ASan and LSan.

llvm-svn: 182399

llvm-svn: 182389

llvm-svn: 182384

Also, define CAN_SANITIZE_LEAKS.

llvm-svn: 182383

llvm-svn: 182382

llvm-svn: 182380

llvm-svn: 182379

llvm-svn: 182378

llvm-svn: 182376

llvm-svn: 182374

llvm-svn: 182372

llvm-svn: 182369

llvm-svn: 182366

llvm-svn: 182365

[ASan] Don't run fast unwinder tests on 32-bit Linux as fast unwinder may be unexpectedly smart on some hosts

llvm-svn: 182363

llvm-svn: 182361

llvm-svn: 182360

llvm-svn: 182359

llvm-svn: 182355

llvm-svn: 182354

llvm-svn: 182353

[sanitizer] fix asan on the platforms where the page size is not a compile-time constant (or at least where EXEC_PAGESIZE may not be trustworthy), e.g. powerpc64. 

llvm-svn: 182351

GetPageSize wraps sysconf(_SC_PAGESIZE) on POSIX platforms, but
sysconf resides in libc.  To make this libc-independent on Linux,
move the wrapper to sanitizer_mac.cc and return the Linux-specific
constant EXEC_PAGESIZE in the sanitizer_linux.cc implementation.

llvm-svn: 182303

llvm-svn: 182292

__libc_stack_end is made into a weak symbol if possible.  If libc is
not linked, read args and environment from /proc.

llvm-svn: 182276

llvm-svn: 182272

Add missing call to GetUserBegin().

llvm-svn: 182267

[libsanitizer] Introduce INTERCEPTOR_WITH_SUFFIX which is to be used for appending the __DARWIN_ALIAS() version suffixes to function names on Darwin.
This should fix asan/lit_tests/wait.cc under ASan.

llvm-svn: 182259

Separate the notions of user-visible chunk and allocator chunk, to facilitate
ASan integration.

llvm-svn: 182256

See https://code.google.com/p/address-sanitizer/issues/detail?id=187 for the details

llvm-svn: 182255