just-built Clang binary, and linking them against the just-built ASan
runtime.

This is *very* brittle. I expect it will require tweaking, and I've
pro-actively disabled it on non-Unix builds and on cross-builds.

It is also currently missing dependency edges on GoogleTest header files
and a few other corner cases, but those can be fixed. This is the major
milestone of a mini-bootstrap-like build of the unittest.

llvm-svn: 159255

llvm-svn: 159143

[asan] move tests from asan_interface_test.cc to asan_noinst_test.cc. Now all these tests do not require instrumentation and work directly with asan rt

llvm-svn: 159135

Add the initial support for building ASan tests.

The first change here is to try to get the CFLAGS to more closely match
those used by the old Makefile. There are probably still goofs here,
ASan folks, your review would be appreciated.

The second big change is to add support for building both
instrumentation based an non-instrumentation based unittests for ASan.
They are built a bit differently from how the old makefiles managed
things. Specifically, there are two binaries, one for the
non-instrumented case, and one for the instrumented case.

Also, the instrumented unit tests rely on the host compiler supporting
AddressSanitizer's intrumentation pass. This is kind-of gross, but
I don't know of a better way yet. I've mailed llvmdev to discuss this
issue.

One big caveat is that the detection logic currently doesn't work. I've
commented it out temporarily as I'd like to get feedback from the ASan
developers, etc.

llvm-svn: 159134

llvm-svn: 158922

llvm-svn: 158921

Enable AddressSanitizerMac.CFAllocatorDefaultDoubleFree and AddressSanitizerMac.CFAllocatorMallocDoubleFree, which now work fine.

llvm-svn: 158886

Actually intercept free() to ensure that the deallocations caused by other functions directly calling it are routed to our allocator.
For the allocations that do not belong to any malloc zone check whether they're padded with a pointer to ASan's CFAllocator. If so, free the original (unpadded) pointer.
This should fix AddressSanitizerMac.NSURLDeallocation and issue 70.

llvm-svn: 158863

llvm-svn: 158843

llvm-svn: 158198

[ASan] fix GetFreeBytesTest interface test on 32-bit Linux - delete some assumptions about the behavior of allocator in test code

llvm-svn: 158047

llvm-svn: 157927

llvm-svn: 157747

llvm-svn: 157746

llvm-svn: 157237

llvm-svn: 155344

llvm-svn: 155127

From now on we allow the clients to override signal handlers set by ASan, but print a warning in such a case.

Remove the tests for signal() and sigaction(), because they made little sense even without this change.

llvm-svn: 154390

llvm-svn: 154314

llvm-svn: 153762

llvm-svn: 153637

llvm-svn: 153601

llvm-svn: 153586

llvm-svn: 153444

llvm-svn: 153376

llvm-svn: 153333

llvm-svn: 153332

llvm-svn: 153190

llvm-svn: 152953

llvm-svn: 152467

llvm-svn: 152362

llvm-svn: 151888

Introduce __asan_set_error_report_callback() to allow the client program post-process the error reports.
If the callback is set, Report() and Printf() print the reports into a buffer (together with stderr), which is then passed to the client.

llvm-svn: 151528

llvm-svn: 151526

llvm-svn: 150802

llvm-svn: 150689

llvm-svn: 150414

It is technically reachable on Android, where pthread_exit is not
marked noreturn.

llvm-svn: 150381

llvm-svn: 150367

llvm-svn: 150366