signal handler reads sa_sigaction when a concurrent sigaction call can modify it
as the result in could try to call SIG_DFL or a partially overwritten function pointer
llvm-svn: 224530
Summary:
Always quote suppressions files given to *_OPTIONS.
This will make it not break when given full Windows paths (otherwise,
parsing would stop after the drive's letter + ':').
Also fix one or two cases where the suppression files' extensions were
not *.supp.
Reviewers: samsonov, kcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6680
llvm-svn: 224529
currently it fails in cmake build with weird errors:
/tmp/real_deadlock_detector_stress_test-68a5ae.o: In function `__clang_call_terminate':
/ssd/src/llvm/projects/compiler-rt/test/tsan/real_deadlock_detector_stress_test.cc:(.text.__clang_call_terminate[__clang_call_terminate]+0x12): undefined reference to `__cxa_begin_catch'
/ssd/src/llvm/projects/compiler-rt/test/tsan/real_deadlock_detector_stress_test.cc:(.text.__clang_call_terminate[__clang_call_terminate]+0x17): undefined reference to `std::terminate()'
/tmp/real_deadlock_detector_stress_test-68a5ae.o: In function `std::vector<int, std::allocator<int> >::_M_check_len(unsigned long, char const*) const':
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/bits/stl_vector.h:1339: undefined reference to `std::__throw_length_error(char const*)'
/tmp/real_deadlock_detector_stress_test-68a5ae.o: In function `__gnu_cxx::new_allocator<int>::allocate(unsigned long, void const*)':
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/ext/new_allocator.h:102: undefined reference to `std::__throw_bad_alloc()'
/tmp/real_deadlock_detector_stress_test-68a5ae.o:(.eh_frame+0x63): undefined reference to `__gxx_personality_v0'
clang-3.5: error: linker command failed with exit code 1 (use -v to see invocation)
llvm-svn: 224511
this test is flaky because of ASLR
app memory is 7e8000000000-800000000000,
there may or may not be a 1TB hole depending on
where ASLR will choose to map libraries
llvm-svn: 223469
This commit changes the place where TSan runtime turns full path
to binary or shared library into its basename
(/usr/foo/mybinary -> mybinary). Instead of doing it as early as possible
(when we obtained the full path from the symbolizer), we now do it as
late as possible (right before printing the error report).
This seems like a right thing to do - stripping to basename is a detail
of report formatting implementation, and should belong there. Also, we
might need the full path at some point - for example, to match the
suppressions.
llvm-svn: 221225
The current handling (manual execution of atexit callbacks)
is overly complex and leads to constant problems due to mutual ordering of callbacks.
Instead simply wrap callbacks into our wrapper to establish
the necessary synchronization.
Fixes issue https://code.google.com/p/thread-sanitizer/issues/detail?id=80
llvm-svn: 219675
In debug mode tsan checks that user accesses
access user memory. NULL is not user memory.
So the test fails. Allocate real inaccessible
memory for the test.
llvm-svn: 218069
I don't remember that crash on mmap in internal allocator
ever yielded anything useful, only crashes in rare wierd untested situations.
One of the reasons for crash was to catch if tsan starts allocating
clocks using mmap. Tsan does not allocate clocks using internal_alloc anymore.
Solve it once and for all by allowing mmaps.
llvm-svn: 217929
We are interested in verifying that -gline-tables-only provides enough
debug information for verbose error reports and symbolized stack traces.
llvm-svn: 217284
Vector clocks is the most actively allocated object in tsan runtime.
Current internal allocator is not scalable enough to handle allocation
of clocks in scalable way (too small caches). This changes transforms
clocks to 2-level array with 512-byte blocks. Since all blocks are of
the same size, it's possible to cache them more efficiently in per-thread caches.
llvm-svn: 214912
David Blaikie