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2717 Commits

Author SHA1 Message Date
Kostya Serebryany 442c4e4b1a [asan] introduce run-time flag 'poison_partial' 
llvm-svn: 192793
 2013-10-16 13:49:01 +00:00
Alexey Samsonov fa103da867 [Sanitizer] Fix lint checker script on Mac 
llvm-svn: 192791
 2013-10-16 13:38:23 +00:00
Dmitry Vyukov d8f595edf1 tsan: refactor libignore implementation 
llvm-svn: 192785
 2013-10-16 11:28:12 +00:00
Alexey Samsonov 1fe87e031c [TSan] Extend test for reporting globals with races on them 
llvm-svn: 192782
 2013-10-16 09:56:17 +00:00
Evgeniy Stepanov ec8ec333f0 [asan] Remove CallocOverflow32 test from asan_test. 
The same as with MSan, this test behavior depends on ASAN_OPTIONS, and we've
got a lit_test that covers this.

llvm-svn: 192777
 2013-10-16 08:34:31 +00:00
Evgeniy Stepanov 8df08225e5 [msan] Handle origins in __sanitizer_unaligned_(load|store)*. 
llvm-svn: 192776
 2013-10-16 08:25:13 +00:00
Alexey Samsonov edecc38395 Make some pthread_mutex_* and pthread_cond_* interceptors common. 
Reviewers: eugenis, dvyukov

Reviewed By: dvyukov

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1937

llvm-svn: 192774
 2013-10-16 08:20:31 +00:00
Sergey Matveev 27ef175ef0 [lsan] Fix bug when discovering indirectly leaked objects. 
If an object contains pointers to itself, that doesn't make it indirectly
leaked. D'oh!

llvm-svn: 192716
 2013-10-15 16:00:11 +00:00
Dmitry Vyukov 81f76f6ff7 tsan: introduce __tsan_default_options() function 
The function allows to statically setup default values for flags.
The interafece matches what asan/msan provide.

llvm-svn: 192715
 2013-10-15 15:58:11 +00:00
Dmitry Vyukov 21e99319f4 tsan: be silent if verbosity=0 
Currently tests fail with:
Check failed: 'AAA' == 'AAA ==26017==Could not detach from thread 361395 (errno 3).'

llvm-svn: 192711
 2013-10-15 15:35:56 +00:00
Dmitry Vyukov 7502a3a90c tsan: use verbosity flag in sanitizer_common code directly 
now it's available from common_flags()

llvm-svn: 192705
 2013-10-15 14:12:26 +00:00
Dmitry Vyukov 45baa00dcb tsan: actually parse verbofity flag 
llvm-svn: 192704
 2013-10-15 14:00:28 +00:00
Dmitry Vyukov 52ca74ec61 tsan: move verbosity flag to CommonFlags 
llvm-svn: 192701
 2013-10-15 13:28:51 +00:00
Dmitry Vyukov a55db0a90f tsan: do not leave trash source files in source dir 
llvm-svn: 192700
 2013-10-15 13:23:29 +00:00
Dmitry Vyukov 347f1a5ee0 tsan: refactor overly-complex logical condition 
llvm-svn: 192698
 2013-10-15 13:04:42 +00:00
Dmitry Vyukov a72f6a57e9 tsan: fix Go build 
llvm-svn: 192696
 2013-10-15 13:03:06 +00:00
Dmitry Vyukov f54835f768 tsan: move kernel struct definition from sanitizer_linux.h to sanitizer_platform_limits_posix.h 
llvm-svn: 192695
 2013-10-15 12:57:59 +00:00
Dmitry Vyukov d534fff6af tsan: do not build llvm from scratch on each presubmit 
llvm-svn: 192694
 2013-10-15 12:54:50 +00:00
Dmitry Vyukov 7ac0b2b0e1 tsan: use sanitizer::CommonFlags in tsan 
llvm-svn: 192692
 2013-10-15 12:25:29 +00:00
Evgeniy Stepanov 7a2bbc30a2 [msan] Remove CallocOverflow test. 
This behaviour depends on MSAN_OPTIONS.
All interesting combinations are covered by lit_tests/allocator_returns_null.cc.

llvm-svn: 192691
 2013-10-15 12:20:16 +00:00
Sergey Matveev 14b9924c7b Clean up StopTheWorld code after r192686. 
Remove outdated comments. Also remove code that handled an issue in libc's
sigaction(), which we don't use anymore.

llvm-svn: 192689
 2013-10-15 11:54:38 +00:00
Dmitry Vyukov 6f61206f55 tsan: resolve symlinks for called_from_lib suppressions 
llvm-svn: 192688
 2013-10-15 11:34:59 +00:00
Evgeniy Stepanov 113c646c56 [msan] Implement allocator_may_return_null=1 in MemorySanitizer. 
llvm-svn: 192687
 2013-10-15 11:33:48 +00:00
Dmitry Vyukov 59c850de6d tsan: implement internal syscall-based versions of sigaction/sigprocmask 
use them in stoptheworld
fixes applications that intercept sigaction/sigprocmask

llvm-svn: 192686
 2013-10-15 11:31:51 +00:00
Evgeniy Stepanov 3feb458a56 Fix a typo. 
llvm-svn: 192685
 2013-10-15 11:22:33 +00:00
Alexey Samsonov d2ddcf575d [ASan] Make test from r192581 Linux-only, as wild memory contents is less predictable on Mac 
llvm-svn: 192677
 2013-10-15 07:54:27 +00:00
Evgeniy Stepanov 251d1e5d21 [msan] Test for r192599. 
llvm-svn: 192600
 2013-10-14 15:17:05 +00:00
Sergey Matveev 43d90cbd86 [lsan] Support ASan's stack-use-after-return mode in LSan. 
Treat the fake stack as live memory.

llvm-svn: 192593
 2013-10-14 14:04:50 +00:00
Evgeniy Stepanov 7d7768e032 [msan] Remove a long-outdated comment. 
llvm-svn: 192592
 2013-10-14 13:30:40 +00:00
Sergey Matveev da9f5e7e7f [asan] Improve thread lifetime tracking on POSIX systems. 
Call AsanThread::Destroy() from a late-running TSD destructor.
Previously we called it before any user-registered TSD destructors, which caused
false positives in LeakSanitizer.

llvm-svn: 192585
 2013-10-14 12:01:05 +00:00
Evgeniy Stepanov 7aacd9c172 [msan] Intercept strto(d|f|ld)_l and glibc-specific __strto(d|f|ld)_l. 
llvm-svn: 192583
 2013-10-14 11:52:40 +00:00
Alexey Samsonov df6e6569c0 [ASan] Don't die with internal ASan error on large buffer overflows 
Summary:
Out-of-bound access may touch not-yet allocated or already freed
and recycled from quarantine chunks. We should treat this situation as
a "free-range memory access" and avoid printing any data about that
irrelevant chunk (which may be inconsistent).

This should fix https://code.google.com/p/address-sanitizer/issues/detail?id=183

Reviewers: kcc

Reviewed By: kcc

CC: timurrrr, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1893

llvm-svn: 192581
 2013-10-14 11:13:54 +00:00
Evgeniy Stepanov 054d533d8d [msan] Regression test for r192575. 
llvm-svn: 192577
 2013-10-14 09:53:39 +00:00
Dmitry Vyukov 4314e319ab tsan: allow to override OnPrint() callback in Go runtime 
llvm-svn: 192576
 2013-10-14 09:52:40 +00:00
Alexey Samsonov c7ae7529e7 [Sanitizer] Return implementation of StackTrace::CopyFrom to header 
llvm-svn: 192574
 2013-10-14 07:36:10 +00:00
Dmitry Vyukov abc416f326 tsan: allow to override OnFinalize() in front-ends that does not support weak functions (Go) 
llvm-svn: 192569
 2013-10-14 06:31:03 +00:00
Alexey Samsonov 7f5823844a [Sanitizer] Remove StackTrace::max_depth field 
llvm-svn: 192534
 2013-10-12 12:40:47 +00:00
Alexey Samsonov c129e65661 [Sanitizer] Turn GetStackTrace() into StackTrace::Unwind() 
llvm-svn: 192533
 2013-10-12 12:23:00 +00:00
Sergey Matveev 53e61b1acf [sanitizer] Define kPthreadDestructorIterations on POSIX systems. 
llvm-svn: 192453
 2013-10-11 14:19:14 +00:00
Dmitry Vyukov 6dc0775f1f tsan: catch more races on file descriptors 
llvm-svn: 192452
 2013-10-11 14:13:11 +00:00
Dmitry Vyukov c9f9ada48d tsan: fix epoll_ctl interceptor 
Currently data-race-test unittests fail with the following false positive:


WARNING: ThreadSanitizer: data race (pid=20365)
  Write of size 8 at 0x7da000008050 by thread T54:
    #0 close tsan_interceptors.cc:1483 (racecheck_unittest-linux-amd64-O0+0x0000000eb34a)
    #1 NegativeTests_epoll::Worker2() unittest/posix_tests.cc:1148 (racecheck_unittest-linux-amd64-O0+0x0000000cc6b1)
    #2 MyThread::ThreadBody(MyThread*) unittest/./thread_wrappers_pthread.h:367 (racecheck_unittest-linux-amd64-O0+0x000000097500)

  Previous read of size 8 at 0x7da000008050 by thread T49:
    #0 epoll_ctl tsan_interceptors.cc:1646 (racecheck_unittest-linux-amd64-O0+0x0000000e9fee)
    #1 NegativeTests_epoll::Worker1() unittest/posix_tests.cc:1140 (racecheck_unittest-linux-amd64-O0+0x0000000cc5b5)
    #2 MyThread::ThreadBody(MyThread*) unittest/./thread_wrappers_pthread.h:367 (racecheck_unittest-linux-amd64-O0+0x000000097500)

llvm-svn: 192448
 2013-10-11 13:33:22 +00:00
Sergey Matveev 6c5e943953 [sanitizer] Ninja style fix to r192442. 
llvm-svn: 192443
 2013-10-11 12:15:45 +00:00
Sergey Matveev dc75cf3368 [sanitizer] Move the PTHREAD_DESTRUCTOR_ITERATIONS constant to sanitizer_linux.h. 
Add a test.

llvm-svn: 192442
 2013-10-11 12:09:49 +00:00
Alexey Samsonov 0cd96165f1 [Sanitizer] StackTrace: kill CopyTo and reimplement CopyFrom 
llvm-svn: 192441
 2013-10-11 11:14:20 +00:00
Alexey Samsonov 9d8385453b [Sanitizer] Simplify StackTrace::FastUnwindStack interface and fix a bug with one-frame stack traces 
llvm-svn: 192428
 2013-10-11 09:58:30 +00:00
Dmitry Vyukov 3431b38067 tsan: minor refactoring 
Replace duplicate code snippet with function.

llvm-svn: 192357
 2013-10-10 16:03:24 +00:00
Dmitry Vyukov fbb194ff34 tsan: add annotations to ignore synchronization operations 
The annotations are AnnotateIgnoreSyncBegin/End,
may be useful to ignore some infrastructure synchronization
that introduces lots of false negatives.

llvm-svn: 192355
 2013-10-10 15:58:12 +00:00
Sergey Matveev 6f7fb43ad3 [sanitizer] Fix the parent liveness check in StopTheWorld. 
Comparing the parent PID with 1 isn't sufficient to ensure the parent is alive,
because of prctl(PR_SET_CHILD_SUBREAPER, ...). Compare with the real parent's
recorded PID instead.

llvm-svn: 192295
 2013-10-09 13:36:20 +00:00
Sergey Matveev adef754297 [sanitizer] Fix deadlock in StopTheWorld. 
The tracer thread in StopTheWorld could wait on a mutex forever if the parent
process died before unlocking it. Use PR_SET_PDEATHSIG so that the parent would
kill the child in this scenario.

llvm-svn: 192210
 2013-10-08 18:01:03 +00:00
Sergey Matveev 398fb700a2 [sanitizer] Do not break the CFI unwind chain in clone(). 
Fixes build on clang 3.2, which doesn't support cfi_undefined. This change
doesn't seem to break the slow unwinder. Even if it does, the worst thing that
could happen is that we would not see a backtrace when a fatal error happens
under StopTheWorld.

llvm-svn: 192196
 2013-10-08 16:38:39 +00:00