With this change, __internal_*stat always expect a "struct stat *" argument.
This avoids stat/stat64 caller-side confusion (sanitizer_common tests already
made this mistake), and allows the use of __internal_fstat() as a drop-in
replacement for libc's fstat().

llvm-svn: 181311

llvm-svn: 181194

Some flags that are common to ASan/MSan/TSan/LSan have been moved to
sanitizer_common.

llvm-svn: 181193

There isn't a speedup when using unbuffered I/O. It slows it down in fact.

llvm-svn: 181060

Use unbuffered I/O. This reduces the runtime by about half. Our implementation is now only about 5 times slower than gcc's.

llvm-svn: 180980

When building compiler-rt on Linux, the "which sw_vers" check fails and
writes an error message into the build log. Apparently on Solaris "which"
writes the error message to stdout, so that the current test won't even
work properly. As far as I know sw_vers always lives in /usr/bin, so just
check for it there instead of using "which".

llvm-svn: 180792

llvm-svn: 180788

llvm-svn: 180787

asan/tsan: fix printf(), on the second pass it prints garbage and crashes on random pointer dereference

llvm-svn: 180784

llvm-svn: 180782

llvm-svn: 180781

llvm-svn: 180780

llvm-svn: 180703

llvm-svn: 180602

llvm-svn: 180599

Otherwise we are picking up an extra libstdc++ dependency.

llvm-svn: 180265

llvm-svn: 180255

llvm-svn: 180251

llvm-svn: 180184

make[3]: make[3]: /bin/sh: ../../../../../bin/clang: Text file busy

llvm-svn: 180183

tsan: disable getpwuid_r() and glob64() interceptors under tsan, because they cause interceptor recursion if user intercepts fopen()

llvm-svn: 180182

llvm-svn: 180180

We now rely on the -mios-simulator-version-min option to identify the iOS
simulator target. I'm not sure if there's anything in compiler-rt where that
matters, but it's the right thing to do regardless.

llvm-svn: 180163

llvm-svn: 180116

llvm-svn: 180113

llvm-svn: 180107

[ASan] Disable strict-init-order checker once we have more than one thread, as this mode is thread-hostile

llvm-svn: 180106

llvm-svn: 180102

llvm-svn: 180101

llvm-svn: 180098

llvm-svn: 180097

See https://code.google.com/p/address-sanitizer/issues/detail?id=131.

llvm-svn: 180093

llvm-svn: 180091

llvm-svn: 180090

llvm-svn: 180082

llvm-svn: 180012

The fread / fwrite calls were happening for each timer. However, that could be
pretty expensive for a large number of timers. Instead, read and write the
timers in one call.

This gives ~10% speedup in compilation time.

llvm-svn: 179990

llvm-svn: 179844

This change adds ASan runtime option "strict-init-order" (off by default)
that makes init-order checker bark if global initializer accesses any global from different
translation unit (even if the latter is already initialized). strict init-order checking
doesn't play well with, e.g. LLVM registration machineries, and causes issue 
https://code.google.com/p/address-sanitizer/issues/detail?id=178.

llvm-svn: 179843

[TSan] Allocate fd table in user heap instead of using internal allocator. We need this to catch races on fds.

llvm-svn: 179841