Because of the way Bionic sets up signal stack frames, libc unwinder is unable
to step through it, resulting in broken SEGV stack traces.

Luckily, libcorkscrew.so on Android implements an unwinder that can start with
a signal context, thus sidestepping the issue.

llvm-svn: 201151

llvm-symbolizer binary and external process handling into separate classes.

No functionality change.

llvm-svn: 201150

llvm-svn: 201147

This change adds a copy of <ucontext.h> for Android found in google-breakpad
that is missing from the official NDK.
ASan SEGV handler is still disabled by default and can be enabled with
ASAN_OPTIONS=handle_segv.

llvm-svn: 201084

llvm-svn: 201074

llvm-svn: 201071

llvm-svn: 201070

llvm-svn: 201069

llvm-svn: 201068

llvm-svn: 201016

llvm-svn: 201015

as required per core issue 1552 and warned about with
-Wimplicit-exception-spec-mismatch.

llvm-svn: 201014

remove TSAN_OPTIONS from the test, so that it runs in the presubmit script
add a CHECK, so that it can run with FileCheck as well

llvm-svn: 200972

when global and thread state are initialized,
this allows to do more things in the callback.

llvm-svn: 200966

llvm-svn: 200945

llvm-svn: 200942

Upgrade the interceptor, and attempt to fix the Android build.

llvm-svn: 200936

llvm-svn: 200926

llvm-svn: 200925

llvm-svn: 200923

This should fix https://code.google.com/p/thread-sanitizer/issues/detail?id=47.

llvm-svn: 200922

we don't use assembly files

llvm-svn: 200916

llvm-svn: 200915

llvm-svn: 200914

llvm-svn: 200910

[asan] introduce two functions that will allow implementations of C++ garbage colection to work with asan's fake stack

llvm-svn: 200908

llvm-svn: 200873

When an unknown ioctl is encountered, try to guess the parameter size from the
request id.

llvm-svn: 200872

[sanitizer] hide two functions in the __sanitizer namespace to avoid exporting them (gold complained)

llvm-svn: 200844

llvm-svn: 200838

llvm-svn: 200833

llvm-svn: 200832

llvm-svn: 200809

llvm-svn: 200804

llvm-svn: 200780

llvm-svn: 200779

llvm-svn: 200778

in preparation for https://codereview.appspot.com/55100044

llvm-svn: 200766

llvm-svn: 200761

llvm-svn: 200757