a flag to skip cache update for cases when that's unacceptable (e.g. lsan).

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 178000

llvm-svn: 177998

llvm-svn: 177927

The hook can be overriden in frontend to print to e.g. a file.

llvm-svn: 177864

[Sanitizer] Compile sanitizer runtimes with -Wno-non-virtual-dtor. Virtual dtors may be a problem for us, as sanitizer runtime should not generally assume libstdc++ presence.

llvm-svn: 177860

llvm-svn: 177857

llvm-svn: 177854

llvm-svn: 177851

tsan: use a single background thread for memory profiler and memory flush (and later for symbolizer flush)

llvm-svn: 177627

 * libclang_rt-san-* is sanitizer_common, and is linked in only if no other
   sanitizer runtime is present.
 * libclang_rt-ubsan-* is the piece of the runtime which doesn't depend on
   a C++ ABI library, and is always linked in.
 * libclang_rt-ubsan_cxx-* is the piece of the runtime which depends on a
   C++ ABI library, and is only linked in when linking a C++ binary.

The Darwin ubsan runtime is unchanged.

For more details, see Clang change r177605.

llvm-svn: 177606

llvm-svn: 177510

256 blocks (which is 512 in reallity) seems to be too big cache,
reducing the size reduces memory consumption but does not degrade performance.

llvm-svn: 177502

llvm-svn: 177497

llvm-svn: 177401

llvm-svn: 177400

llvm-svn: 177397

llvm-svn: 177395

tsan: flush dead thread info earlier (when another thread is finished rather than new thread is created)

llvm-svn: 177394

llvm-svn: 177388

llvm-svn: 177384

Moved this code to sanitizer_common.

llvm-svn: 177383

Clang does not like classes with virtual functions but w/o virtual dtor.
Go does not like libstdc++ (operator delete).

llvm-svn: 177267

llvm-svn: 177260

llvm-svn: 177255

llvm-svn: 177251

llvm-svn: 177246

llvm-svn: 177245

StopTheWorld puts the process in a suspended state before running the
user-supplied callback. To be used in TSan and in leak checking code.

Linux implementation provided.

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 177156

[Sanitizer] Don't intercept frexpf and frexpl on Windows. Add frexp declaration to asan_intercepted_functions.h

llvm-svn: 177155

llvm-svn: 177151

llvm-svn: 177149

llvm-svn: 177147

[Sanitizer] Generalize compile/link flags for sanitizer_common tests on Android and on other platforms.

llvm-svn: 177146

llvm-svn: 177143

Patch by Manuel Klimek!

llvm-svn: 177132

[Sanitizer] Fix compiler warnings and style issues in sanitizer_common tests. Use -Werror=sign-compare when building them.

llvm-svn: 177077

[Sanitizer] Add generic ThreadRegistry class for sanitizer runtimes. This class holds basic thread bookkeeping logic and allows specific sanitizer runtimes to create thread contexts and mark threads as created/running/joined etc. The class is based on the way we currently store thread contexts in TSan.

llvm-svn: 177074

llvm-svn: 177072

llvm-svn: 177071

llvm-svn: 177070