llvm-svn: 182743

llvm-svn: 182740

In this CL all old tests are removed and one LIT test is added.

llvm-svn: 182730

llvm-svn: 182728

Now compiler-rt tests run correctly if compiler-rt is checked out into
arbitrary directory (not necessarily projects/compiler-rt).
Patch by Greg Fitzgerald!

llvm-svn: 182726

[ASan] Introduce SymbolizerPrepareForSandboxing(), which is a no-op on every platform except Linux (because we don't support sandboxing anywhere else yet)
On Linux we pre-cache the value of readlink("/proc/self/exe"), so that it can be later used when the sandbox has been turned on.

llvm-svn: 182579

llvm-svn: 182576

llvm-svn: 182575

llvm-svn: 182574

llvm-svn: 182573

llvm-svn: 182481

llvm-svn: 182479

llvm-svn: 182475

llvm-svn: 182473

llvm-svn: 182469

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

llvm-svn: 182466

[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: 182374

llvm-svn: 182372

llvm-svn: 182369

llvm-svn: 182366

llvm-svn: 182361

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

[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

llvm-svn: 182250

[sanitizer] factor out ByteMap from SizeClassAllocator32 so that it can be later replaced with a more memory-efficient implementation on 64-bit.

llvm-svn: 182234

llvm-svn: 182218

llvm-svn: 182177

Before, we had an unused internal_getpid function for Linux, and a
platform-independent GetPid function.  To make the naming conventions
consistent for syscall-like functions, the GetPid syscall wrapper
in sanitizer_posix.cc is moved to sanitizer_mac.cc, and GetPid is
renamed to internal_getpid, bringing the Linux variant into use.

llvm-svn: 182132

Introduce a new object library, RTSanitizerCommonLibc, which will contain
the subset of sanitizer_common with libc dependencies. RTSanitizerCommon
contains the remainder of sanitizer_common, and is intended to have no
libc dependencies. Begin moving code to RTSanitizerCommonLibc, starting
with sanitizer_common.cc, whose libc-dependent portion is moved to
sanitizer_common_libcdep.cc, the first member of the new library.

This split affects the CMake build only.  The makefile build continues
to produce the full sanitizer_common library.

llvm-svn: 182118

llvm-svn: 182110

llvm-svn: 182094

llvm-svn: 182093

llvm-svn: 182087

llvm-svn: 182006

[asan] symbolize when possible, even if ASAN_SYMBOLIZER_PATH is not provided. On Linux this will use dl_iterate_phdr instead of /proc/self/maps, even if the symbolizer is not installed

llvm-svn: 182005