libsanitizer merge from upstream r196090

[Jakub Jelinek]

On Mon, Dec 02, 2013 at 05:13:45AM -0800, H.J. Lu wrote:
> > =========== libsanitizer/ChangeLog
> >
> > 2013-12-0X  Kostya Serebryany  <kcc@google.com>
> >
> >         * All source files: Merge from upstream r196090.
> >         * tsan/Makefile.am (tsan_files): Added new files.
> >         * tsan/Makefile.in: Regenerate.
> >         * sanitizer_common/Makefile.am (sanitizer_common_files): Added new fles.
> >         * sanitizer_common/Makefile.in: Regenerate.
> >         * lsan/Makefile.am (lsan_files): Added new files.
> >         * lsan/Makefile.in: Regenerate.
> >
> > =========== gcc/testsuite/ChangeLog
> >
> > 2013-12-0X  Kostya Serebryany  <kcc@google.com>
> >
> >         * c-c++-common/asan/null-deref-1.c: Update the test
> >         to match the fresh asan run-time.
> >
> > --kcc
> 
> Does it support using libbacktrace in GCC?

Not on it's own, but the support in the upstream maintained files
is there, so hopefully it will be just a matter of follow-up patch
with configury/Makefile etc. stuff, I'll work on it once the merge is
committed.

What is more important now is to test the patch Kostya posted on non-x86_64
targets and/or older kernel headers (say RHEL5, older SLES, etc.).

	Jakub