Commit Graph

2972 Commits

Author SHA1 Message Date
Peter Collingbourne 791e65dcfb Overhaul the symbolizer interface.
This moves away from creating the symbolizer object and initializing the
external symbolizer as separate steps.  Those steps now always take place
together.

Sanitizers with a legacy requirement to specify their own symbolizer path
should use InitSymbolizer to initialize the symbolizer with the desired
path, and GetSymbolizer to access the symbolizer.  Sanitizers with no
such requirement (e.g. UBSan) can use GetOrInitSymbolizer with no need for
initialization.

The symbolizer interface has been made thread-safe (as far as I can
tell) by protecting its member functions with mutexes.

Finally, the symbolizer interface no longer relies on weak externals, the
introduction of which was probably a mistake on my part.

Differential Revision: http://llvm-reviews.chandlerc.com/D1985

llvm-svn: 193448
2013-10-25 23:03:29 +00:00
Peter Collingbourne 8d27910d7d Rename SpinMutex::AssertHeld to CheckLocked, for consistency with BlockingMutex.
llvm-svn: 193447
2013-10-25 23:03:21 +00:00
Evgeniy Stepanov c0fdb3941c [sanitizer] Disable tmpnam_r interceptor on Mac.
llvm-svn: 193417
2013-10-25 16:22:50 +00:00
Evgeniy Stepanov 94042e1ff2 [sanitizer] Intercept tmpnam, tmpnam_r, tempnam.
llvm-svn: 193415
2013-10-25 15:51:48 +00:00
Evgeniy Stepanov a59daaef3e [msandr] Add NATIVE_EXEC macro for building client for running in DynamoRIO hybrid mode only.
When running application in DynamoRIO hybrid mode only, only uninstrumented
modules will run in DynamoRIO and be instrumented by the client, so we do not
need module table in MSanDR.

Patch by Qin Zhao.

llvm-svn: 193411
2013-10-25 14:57:02 +00:00
Evgeniy Stepanov 2acb2470f9 [sanitizer] Remove pthread_attr_getstackaddr interceptor.
The function is deprecated.

llvm-svn: 193409
2013-10-25 14:27:00 +00:00
Evgeniy Stepanov 7f42c6e007 [sanitizer] Fix Android build.
llvm-svn: 193408
2013-10-25 14:24:31 +00:00
Evgeniy Stepanov 07507ffab4 [msan] Zerofill initstate_r buffer in random_r test.
llvm-svn: 193406
2013-10-25 13:03:20 +00:00
Evgeniy Stepanov c2b6cb0747 [sanitizer] Intercept pthread_attr_get*.
llvm-svn: 193405
2013-10-25 13:01:31 +00:00
Evgeniy Stepanov ced9fede02 [msan] Separate access and origin blocks in msan reports with an extra whiteline.
llvm-svn: 193401
2013-10-25 11:17:54 +00:00
Dmitry Vyukov 53491113f0 tsan: do not crash when apparently bogus fd is passed to e.g. close
some tests test libc/filesystem error handling paths (e.g. close(INT_MAX)),
currently such tests fail
with this change they work as expected

llvm-svn: 193400
2013-10-25 09:45:44 +00:00
Evgeniy Stepanov be9cdbb58c [sanitizer] Intercept random_r.
llvm-svn: 193396
2013-10-25 08:58:13 +00:00
Stephen Hines 7633afc960 Switch __ARM_ARCH_7S__ to __ARM_ARCH_EXT_IDIV__ for use of sdiv/udiv assembly.
__ARM_ARCH_EXT_IDIV__ is the define that ARM is using to indicate the presence
of hardware integer divide (sdiv/udiv). Previously, this code was only being
invoked for processors marked 7S. We now can correctly generate hardware
divides on cortex-a15 devices.

llvm-svn: 193392
2013-10-25 06:26:44 +00:00
Evgeniy Stepanov f312b480e2 [sanitizer] Intercept shmctl.
llvm-svn: 193348
2013-10-24 14:47:34 +00:00
Evgeniy Stepanov 7edb87a92c [msan] Unpoison errno in common interceptors.
llvm-svn: 193343
2013-10-24 13:20:34 +00:00
Evgeniy Stepanov d280ee48e8 [msan] Fix invalid origin copying.
Origin copying may destroy valid origin info. This is caused by
__msan_copy_origin widening the address range to the nearest 4-byte aligned
addresses both on the left and on the right. If the target buffer is
uninitialized and the source is fully initialized, this will result in
overriding valid origin of target buffer with stale (possibly 0) origin of the
source buffer.

With this change the widened origin is copied only if corresponding shadow
values are non zero.

llvm-svn: 193338
2013-10-24 11:56:03 +00:00
Evgeniy Stepanov f2fd459a5b [msan] Change wording in the invalid origin message.
llvm-svn: 193335
2013-10-24 11:52:48 +00:00
Peter Collingbourne 50cb32e614 Introduce an operator new for LowLevelAllocator, and convert most users to it.
llvm-svn: 193308
2013-10-24 06:23:39 +00:00
Alexey Samsonov 857e3ece9b [ASan] ASan can be combined with LSan and UBSan, so export symbol from them as well.
llvm-svn: 193245
2013-10-23 15:36:22 +00:00
Evgeniy Stepanov 55a3ba2281 [sanitizer] Fix OSX build.
llvm-svn: 193244
2013-10-23 15:21:10 +00:00
Evgeniy Stepanov 3e6064f9d2 [sanitizer] Intercept ether_* functions.
llvm-svn: 193241
2013-10-23 13:57:47 +00:00
Dmitry Vyukov 1ec0fd4071 tsan: parse symbolize/external_symbolizer_path common flags
llvm-svn: 193236
2013-10-23 09:00:49 +00:00
Nick Lewycky 993f1f38fd Continue to keep 'SUMMARY: ' prefix in lsan. Whoops!
llvm-svn: 193232
2013-10-23 07:58:11 +00:00
Nick Lewycky 622348e693 Hoist the addition of the prefix "SUMMARY: " from
__sanitizer_report_error_summary to ReportErrorSummary.

llvm-svn: 193231
2013-10-23 07:45:53 +00:00
Nick Lewycky d27d668342 Make sure ASan always emits an error summary if it reports an error.
llvm-svn: 193229
2013-10-23 06:19:04 +00:00
Evgeniy Stepanov 2794c47243 [msan] Drain allocator cache when leaving thread.
llvm-svn: 193163
2013-10-22 14:31:30 +00:00
Evgeniy Stepanov 0229c09d43 [sanitizer] Intercept initgroups.
llvm-svn: 193158
2013-10-22 12:24:48 +00:00
Sergey Matveev fd10073aeb [lsan] When detect_leaks=false, be completely silent.
In particular, don't make a fuss if we're passed a malformed suppressions file,
or if we have trouble identifying ld.so. Also, make LSan interface functions
no-ops in this case.

llvm-svn: 193108
2013-10-21 19:35:00 +00:00
Peter Collingbourne b745eec4e4 Use internal_memset to initialize this variable.
Otherwise, the compiler may use memset in non-optimized builds, which is
forbidden in the nolibc part of the runtime.

llvm-svn: 193098
2013-10-21 18:11:57 +00:00
Kostya Serebryany b773785a59 [asan] count the size of QuarantineBatch in the total Quarantine size; make QuarantineBatch fit into 8K, fix a MSVC compile warning
llvm-svn: 193072
2013-10-21 08:36:10 +00:00
Dmitry Vyukov 1e995d4f3e tsan: fix strerror interceptor (eliminate false positives)
llvm-svn: 193070
2013-10-21 07:40:19 +00:00
Peter Collingbourne 90a0876ae7 Runtime support for the indirect function call checker.
Differential Revision: http://llvm-reviews.chandlerc.com/D1339

llvm-svn: 193060
2013-10-20 21:29:46 +00:00
Peter Collingbourne b714e7e12a [ubsan] Introduce %clangxx substitution for all C++ tests.
llvm-svn: 193059
2013-10-20 21:29:32 +00:00
Kostya Serebryany 8bb5d60235 [asan] fix stack trace printing on Mac
llvm-svn: 192990
2013-10-18 17:46:43 +00:00
Kostya Serebryany f11e485d60 [asan] allocate AsanThreadContext using LowLevelAllocator instead of mmap to save space
llvm-svn: 192980
2013-10-18 15:07:07 +00:00
Kostya Serebryany 9628839869 [asan] reduce the size of AsanThreadContext by storing the stack trace in the stack depot
llvm-svn: 192979
2013-10-18 14:50:44 +00:00
Alexander Potapenko e45ca59fd9 [ASan] fix compilation of sanitizer_platform_limits_posix.cc on OSX.
llvm-svn: 192975
2013-10-18 14:16:54 +00:00
Alexander Potapenko 2fe16d720c [ASan] fix compilation of atexit_stats.cc on OSX
llvm-svn: 192973
2013-10-18 14:12:15 +00:00
Evgeniy Stepanov 78c5730bec [sanitizer] Fix OSX build some more.
llvm-svn: 192967
2013-10-18 12:19:23 +00:00
Evgeniy Stepanov b4e501c6ec [sanitizer] Fix OSX build.
llvm-svn: 192966
2013-10-18 11:26:02 +00:00
Evgeniy Stepanov 3cb9df042e [sanitizer] Move statfs/fstatfs to common interceptors and add statvfs/fstatvfs.
llvm-svn: 192965
2013-10-18 11:14:16 +00:00
Kostya Serebryany e2007b706e [asan] fix a test on Mac
llvm-svn: 192960
2013-10-18 09:42:24 +00:00
Evgeniy Stepanov 70d5abfba2 [sanitizer] Intercept getmntent, getmntent_r.
llvm-svn: 192959
2013-10-18 09:41:43 +00:00
Kostya Serebryany 4bf67d99f4 [asan] fix atexit stats
llvm-svn: 192956
2013-10-18 07:57:59 +00:00
Richard Smith c1d5471291 Make the big array in the UBSan C++ runtime be zero-initialized to dramatically
shrink the binary size of the ubsan runtime.

Also fix a bug where long-running processes could eventually trigger a crash in
the runtime by filling up the cache. I've not found a nice way to add a test for
this crasher; ideas welcome.

llvm-svn: 192931
2013-10-17 22:51:04 +00:00
Alexander Potapenko 1f5573cca2 [ASan] fix assign_large_valloc_to_global.cc to use the correct header for valloc() on OSX.
llvm-svn: 192901
2013-10-17 15:48:24 +00:00
Kostya Serebryany 8e2881d0c2 [asan] fix a failure with ASAN_OPTIONS=verbosity=1:use_sigaltstack=1
llvm-svn: 192892
2013-10-17 13:18:21 +00:00
Evgeniy Stepanov 4bbf273173 [sanitizer] Fix unpoisoning of msghdr::msg_name in recvmsg interceptor.
llvm-svn: 192886
2013-10-17 11:32:30 +00:00
Kostya Serebryany f04ae33106 [asan] Fix a deadlock between asan's allocator and lsan
Summary:
This fixes a deadlock which happens in lsan
on a large memalign-allocated chunk that resides in lsan's root set.

Reviewers: samsonov, earthdok

Reviewed By: earthdok

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1957

llvm-svn: 192885
2013-10-17 11:18:11 +00:00
Alexey Samsonov bc7c87a8cb [Sanitizer] Move pthread_cond_signal and pthread_cond_broadcast to common interceptors
llvm-svn: 192876
2013-10-17 09:24:03 +00:00
Dmitry Vyukov 333112a439 tsan: merge 2 similar tests into 1
llvm-svn: 192874
2013-10-17 08:27:24 +00:00
Dmitry Vyukov e88dbe5774 tsan: add a test for __tsan_default_options()
llvm-svn: 192873
2013-10-17 08:13:38 +00:00
Will Dietz ece9ede240 Use configured PYTHON in asan lit tests.
llvm-svn: 192870
2013-10-17 05:33:22 +00:00
Dmitry Vyukov cdc971c03c tsan: revert variable name change in test
It works as is with new llvm-symbolizer.

llvm-svn: 192798
2013-10-16 15:57:23 +00:00
Dmitry Vyukov 464ebbd67b tsan: move shadow stack from thread descriptors to fixed addresses
This allows to increase max shadow stack size to 64K,
and reliably catch shadow stack overflows instead of silently
corrupting memory.

llvm-svn: 192797
2013-10-16 15:35:12 +00:00
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
Alexey Samsonov 50ec07c196 [TSan] Automatically pick up llvm-symbolizer from PATH, as we do in another sanitizers
llvm-svn: 191954
2013-10-04 13:38:35 +00:00
Alexey Samsonov 12f5e639d6 [TSan] Add ValgrindSlowdown to the list of exported symbols
llvm-svn: 191952
2013-10-04 13:12:05 +00:00
Dmitry Vyukov 513a3a6c0b tsan: fix a bug in pthread_once when called from an ignored library
It must set thr->in_rtl = 0 before executing user callback.

llvm-svn: 191946
2013-10-04 10:27:21 +00:00
Alexey Samsonov f2b811a618 Refactor the usage of strip_path_prefix option and make it more consistent across sanitizers
llvm-svn: 191943
2013-10-04 08:55:03 +00:00
Dmitry Vyukov 302ec7b9bc tsan: add memory_limit_mb flag
The flag allows to bound maximum process memory consumption (best effort).
If RSS reaches memory_limit_mb, tsan flushes all shadow memory.

llvm-svn: 191913
2013-10-03 17:14:35 +00:00
Dmitry Vyukov c967d2f49c asan/msan/tsan: fix broken linux syscalls
Currently the following source code:

u64 NanoTime() {
  kernel_timeval tv = {};
  internal_syscall(__NR_gettimeofday, &tv, 0);
  return (u64)tv.tv_sec * 1000*1000*1000 + tv.tv_usec * 1000;
}

generates the following assembly:

Dump of assembler code for function __sanitizer::NanoTime():
=> 0x00007ff30657d380 <+0>:	lea    -0x10(%rsp),%rdi
   0x00007ff30657d385 <+5>:	xor    %esi,%esi
   0x00007ff30657d387 <+7>:	mov    $0x60,%eax
   0x00007ff30657d38c <+12>:	syscall 
   0x00007ff30657d38e <+14>:	mov    $0,%eax
   0x00007ff30657d393 <+19>:	retq   

with this change:

Dump of assembler code for function __sanitizer::NanoTime():
=> 0x00007faab834f380 <+0>:	movq   $0x0,-0x10(%rsp)
   0x00007faab834f389 <+9>:	movq   $0x0,-0x8(%rsp)
   0x00007faab834f392 <+18>:	lea    -0x10(%rsp),%rdi
   0x00007faab834f397 <+23>:	xor    %esi,%esi
   0x00007faab834f399 <+25>:	mov    $0x60,%eax
   0x00007faab834f39e <+30>:	syscall 
   0x00007faab834f3a0 <+32>:	mov    -0x8(%rsp),%rax
   0x00007faab834f3a5 <+37>:	mov    -0x10(%rsp),%rcx
   0x00007faab834f3aa <+42>:	imul   $0x3e8,%rax,%rdx
   0x00007faab834f3b1 <+49>:	imul   $0x3b9aca00,%rcx,%rax
   0x00007faab834f3b8 <+56>:	add    %rdx,%rax
   0x00007faab834f3bb <+59>:	retq   

llvm-svn: 191908
2013-10-03 16:53:50 +00:00
Dmitry Vyukov 19a1302046 asan/msan: fix "unused function 'OnExit'" warning
llvm-svn: 191904
2013-10-03 15:43:59 +00:00
Dmitry Vyukov fdfb2ade8f asan/msan/tsan: move _exit interceptor to common interceptors
llvm-svn: 191903
2013-10-03 15:22:29 +00:00
Dmitry Vyukov bfe7bb7034 tsan: include lsan into presubmit check
llvm-svn: 191902
2013-10-03 14:56:08 +00:00
Dmitry Vyukov 83ebd022d7 tsan: fix false positive in localtime()
llvm-svn: 191899
2013-10-03 14:12:09 +00:00
Dmitry Vyukov e07dc7d1fe tsan: intercept _exit so that we can override exit status
llvm-svn: 191898
2013-10-03 14:00:46 +00:00
Dmitry Vyukov 5ba736457c tsan: ignore interceptors coming from specified libraries
LibIgnore allows to ignore all interceptors called from a particular set
of dynamic libraries. LibIgnore remembers all "called_from_lib" suppressions
from the provided SuppressionContext; finds code ranges for the libraries;
and checks whether the provided PC value belongs to the code ranges.

Also make malloc and friends interceptors use SCOPED_INTERCEPTOR_RAW instead of
SCOPED_TSAN_INTERCEPTOR, because if they are called from an ignored lib,
then must call our internal allocator instead of libc malloc.

llvm-svn: 191897
2013-10-03 13:37:17 +00:00
Evgeniy Stepanov c907a60ffb [sanitizer] Fix localtime and gmtime interceptors to clean tm->tm_zone.
llvm-svn: 191827
2013-10-02 14:30:03 +00:00
Dmitry Vyukov 945397157b tsan: fix the following compiler warning
sanitizer_common_interceptors.inc:1142:53: warning: invoking macro INTERCEPTOR argument 3: empty macro arguments are undefined in ISO C90 and ISO C++98 [enabled by default]

llvm-svn: 191822
2013-10-02 14:04:23 +00:00
Dmitry Vyukov af335eddfe msan: fix compiler warnings about unused variables
llvm-svn: 191821
2013-10-02 14:02:08 +00:00
Dmitry Vyukov 8358c41477 tsan: use ninja instead of make (faster and less output)
llvm-svn: 191819
2013-10-02 12:57:43 +00:00
Nick Lewycky f60d8ae155 This fixme is resolved, fix the test.
llvm-svn: 191810
2013-10-02 05:05:28 +00:00
Nick Lewycky b7aa592c19 Make the InvalidValueData take a SourceLocation.
llvm-svn: 191807
2013-10-02 02:29:47 +00:00
Alexey Samsonov 3b54a83d26 [LSan] Rework r191522 - treat allocations with short stack traces as live
llvm-svn: 191662
2013-09-30 10:57:56 +00:00
Alexey Samsonov f56ddf7fd1 [LSan] Don't report leaks with single-frame stack traces
llvm-svn: 191522
2013-09-27 13:54:20 +00:00
Evgeniy Stepanov 01781722b6 [sanitizer] Intercept backtrace, backtrace_symbols.
llvm-svn: 191516
2013-09-27 12:40:23 +00:00
Kostya Serebryany 3c42ce1516 [asan] introduce run-time flag uar_stack_size_log to control the size of FakeStack; don't crash when the fake stack is exhausted, move some code to .cc file
llvm-svn: 191510
2013-09-27 11:37:23 +00:00
Evgeniy Stepanov 022235cf04 [msan] Unpoison argument shadow for C++ module destructors.
Fixes PR17377.

llvm-svn: 191508
2013-09-27 11:32:21 +00:00
Dmitry Vyukov 439a904515 tsan: support allocator_may_return_null flag
Fixes https://code.google.com/p/thread-sanitizer/issues/detail?id=29

llvm-svn: 191482
2013-09-27 02:31:23 +00:00
Dmitry Vyukov e435f94b69 tsan: fix scanf interceptor
llvm-svn: 191445
2013-09-26 18:38:54 +00:00
Evgeniy Stepanov 8f27f6b549 [sanitizer] A bunch of libc interceptors.
sigwait
sigwaitinfo
sigtimedwait
sigemptyset
sigfillset
sigpending
sigprocmask

llvm-svn: 191374
2013-09-25 14:47:43 +00:00
Alexey Samsonov 4fc53e4c06 [Sanitizer] Don't include wordexp.h on Android
llvm-svn: 191358
2013-09-25 07:41:46 +00:00
Evgeniy Stepanov 2761ee0409 [sanitizer] Intercept wordexp.
llvm-svn: 191305
2013-09-24 14:38:22 +00:00
Alexander Potapenko ae49e8c34a [ASan] Fix GCD tests by spinning forever in the main thread.
Since the error is always reported by one of the GCD workers, this will help avoid premature program termination with exit code 0.

llvm-svn: 191294
2013-09-24 12:42:25 +00:00
Evgeniy Stepanov 46901f613b [msan] Test for atomic handling in MSan.
llvm-svn: 191288
2013-09-24 11:21:16 +00:00
Kostya Serebryany 01ff028814 [asan] remove -fsanitize=use-after-return from the tests (this flag now comes with asan by default)
llvm-svn: 191204
2013-09-23 14:34:06 +00:00
Evgeniy Stepanov ce72b2c20b [msan] Fix a WTF in r191196.
llvm-svn: 191197
2013-09-23 13:34:26 +00:00
Evgeniy Stepanov f497bfee76 [msan] Allow nested symbolizer and loader scopes.
llvm-svn: 191196
2013-09-23 13:26:31 +00:00
Timur Iskhodzhanov 7f92aa687a [ASan/Win] Slightly optimize the DLL thunk
llvm-svn: 191190
2013-09-23 11:40:58 +00:00
Timur Iskhodzhanov e2b207cfd2 [ASan] Fix a compile-time warning
llvm-svn: 191189
2013-09-23 11:19:43 +00:00
Timur Iskhodzhanov d6c93c7b4d [ASan] Add DLL thunks for the new stack UAR interface
llvm-svn: 191188
2013-09-23 11:05:41 +00:00
Alexander Potapenko 92b566b0e4 [ASan] Fix the interface test on Darwin.
llvm-svn: 191187
2013-09-23 10:38:23 +00:00
Kostya Serebryany b997c543fc [asan] disable the detect_stack_use_after_return run-time flag by default and enable it explicitly in tests. This is done in preparation to enabling the -fsanitize=use-after-return compile-time flag by default when -fsanitize=address is present.
llvm-svn: 191184
2013-09-23 08:58:14 +00:00
Dmitry Vyukov 2ea2d9cb29 tsan: remove unneeded ___chkstk_ms function from Go runtime
llvm-svn: 191161
2013-09-22 02:49:56 +00:00
Dmitry Vyukov a2c6e1e80f tsan: allow symbolization of non-native PCs, e.g. coming from JIT/JAVA/etc
llvm-svn: 191157
2013-09-22 00:14:57 +00:00
Dmitry Vyukov 76ec1910ac tsan: ignore malloc/free/strdup when called from libjvm
llvm-svn: 191153
2013-09-21 23:44:19 +00:00
Dmitry Vyukov 150406bbf3 tsan: ignore all interceptors coming directly from JVM
llvm-svn: 191152
2013-09-21 23:06:00 +00:00
Dmitry Vyukov 017015c9ed tsan: improve diagnostics for incorrect usages of mutexes
llvm-svn: 191151
2013-09-21 22:43:27 +00:00
Dmitry Vyukov 4e9c091dd7 tsan: allow to obtain code range for a particular module
this is required to ignore interceptors when called from the module

llvm-svn: 191149
2013-09-21 21:41:08 +00:00
Dmitry Vyukov 1da6b4d5c8 tsan: intercept fork syscall
llvm-svn: 191144
2013-09-21 20:59:04 +00:00
Dmitry Vyukov 3d15bcca1d tsan: do not try to use builtin atomic operations
see the comment in code

llvm-svn: 191132
2013-09-21 04:59:02 +00:00
Dmitry Vyukov a182592aa0 tsan: intercept close syscall
llvm-svn: 191129
2013-09-21 03:47:35 +00:00
Alexander Potapenko 6c49695e7a [ASan] Remove a complex multiline comment that baffles lint.
That comment is repeated in another function below.

llvm-svn: 191085
2013-09-20 11:33:14 +00:00
Alexander Potapenko d1bae72e39 [libsanitizer] Pass an explicit template to mktemp. Running mktemp without a template doesn't work on Darwin.
llvm-svn: 191084
2013-09-20 11:29:44 +00:00
Alexander Potapenko bff7e64a3f [ASan] Fix compilation of asan_str_test.cc on non-Darwin.
llvm-svn: 191083
2013-09-20 11:03:27 +00:00
Alexander Potapenko 7be1a632b2 [ASan] Enforce the memmove semantics for both memcpy() and memmove() interceptors on Darwin.
Due to bugs in the interposition of resolver functions on 10.7 and 10.8 both memcpy() and memmove()
were previously intercepted by INTERCEPTOR(memcpy), which led to false positives and crashes (see http://llvm.org/bugs/show_bug.cgi?id=16362)
We choose to use a memmove-like function in both cases. This effectively disables the overlap checks in memcpy(), but the overlaps
aren't possible in practice, because memcpy() and memmove() are the same function on Darwin.

Once the interposition is fixed in 10.9, we'll need to revisit this issue, see https://code.google.com/p/address-sanitizer/issues/detail?id=226

llvm-svn: 191081
2013-09-20 10:56:34 +00:00
Kostya Serebryany 2ab5a48dbe [asan] nuke yet another async-signal-safety bug in UAR (oh, my)
llvm-svn: 191080
2013-09-20 09:16:21 +00:00
Alexey Samsonov 29d7be1f68 [Sanitizer] Add pthread_cond_init to the list of versioned functions
llvm-svn: 191078
2013-09-20 08:37:57 +00:00
Dmitry Vyukov 481d90c480 tsan: handle memory read/write in syscalls
llvm-svn: 191074
2013-09-20 06:54:14 +00:00
Dmitry Vyukov c7547d0527 tsan: allow to ignore memory accesses in malloc and free
llvm-svn: 191072
2013-09-20 05:37:36 +00:00
Dmitry Vyukov 20f6ff1e66 tsan: do not crash when user intercepts fopen()
llvm-svn: 191066
2013-09-20 02:01:38 +00:00
Dmitry Vyukov b523b9c8d4 tsan: fix linking of tsan runtime into dynamic libraries
versioned symbols can not be linked into dynamic library w/o linker script
also simplifies code as side effect

llvm-svn: 191056
2013-09-19 23:44:51 +00:00
Alexander Potapenko 8f5d907aea [ASan] Fix init-order-dlopen.cc test to not depend on the -Wl,-undefined,dynamic_lookup being passed to the linker.
llvm-svn: 191012
2013-09-19 17:12:45 +00:00
Kostya Serebryany f8bbdfaf95 [asan] fix one more async-signal-safety issue with use-after-return
llvm-svn: 191004
2013-09-19 14:59:52 +00:00
Alexey Samsonov 786ee9b1ad [MSan] Fix -Wempty-body warning
llvm-svn: 190994
2013-09-19 08:35:16 +00:00
Alexey Samsonov 1c5cd7516f [TSan] Fix -Wempty-body warning
llvm-svn: 190993
2013-09-19 07:59:18 +00:00
Dmitry Vyukov d78bc3aa11 asan/tsan/msan: use builtin atomic operations when available
this should fix episodic crashes on ARM/PPC
x86_32 is still broken

llvm-svn: 190991
2013-09-19 06:02:56 +00:00
Dmitry Vyukov f54631dcfe tsan: prevent the following false positive due to __cxa_atexit
WARNING: ThreadSanitizer: data race (pid=29103)
  Write of size 8 at 0x7d64003bbf00 by main thread:
    #0 free tsan_interceptors.cc:477
    #1 __run_exit_handlers <null>:0 (libc.so.6+0x000000050cb7)

  Previous write of size 8 at 0x7d64003bbf00 by thread T78 (mutexes: write M9896):
    #0 calloc tsan_interceptors.cc:449
    #1 ...

llvm-svn: 190989
2013-09-19 04:48:59 +00:00
Dmitry Vyukov c2437ffc23 tsan: consistently use thr instead of cur_thread() in annotations implementation
llvm-svn: 190988
2013-09-19 04:42:25 +00:00
Dmitry Vyukov 1a7ca92006 tsan: refactor internal IgnoreCtl interface
llvm-svn: 190987
2013-09-19 04:39:04 +00:00
Evgeniy Stepanov 91375fd66e [tsan] No-op implementation of AnnotateMemoryIsInitialized.
llvm-svn: 190933
2013-09-18 11:20:31 +00:00
Kostya Serebryany c3d43ca3ec [asan] add a run-time option detect_stack_use_after_return, add verbosity output for fake stack
llvm-svn: 190932
2013-09-18 10:35:12 +00:00
Alexey Samsonov c947eb08b5 [ASan] Don't add SANITIZER_INTERFACE_ATTRIBUTE for internal ASan functions
llvm-svn: 190860
2013-09-17 09:42:03 +00:00
Alexey Samsonov a7f35c06dc [ASan] Enable fake stack test on Mac and Android, as no-instrumentation tests are now fixed
llvm-svn: 190856
2013-09-17 08:40:32 +00:00
Alexey Samsonov 676c109c24 [ASan] Link tests with -pie if ASan runtime uses zero-base shadow
llvm-svn: 190853
2013-09-17 07:50:12 +00:00
Kostya Serebryany 2f5c2be6bd [asan] further speedup use-after-return: simplify deallocation of fake frames. ~ 20% speedup.
llvm-svn: 190852
2013-09-17 07:42:54 +00:00
Nick Lewycky 885136d3b6 Check the function we just called for errors, not an incoming argument. Noticed
by inspection.

llvm-svn: 190828
2013-09-17 00:23:28 +00:00
Alexey Samsonov f71c88910c [ASan] Don't link with pthread on Android
llvm-svn: 190794
2013-09-16 16:51:49 +00:00
Alexey Samsonov 036a5bef2d [ASan] Split ASan unit tests into two different binaries:
(1) instrumented, i.e. compiled and linked with -fsanitize=address
(2) not instrumented, compiled w/o -fsanitize=address and linked with ASan runtime statically.

llvm-svn: 190788
2013-09-16 15:50:53 +00:00
Alexey Samsonov 48e256466a [ASan] Check that getSymbolizer() is defined. Turn magic mapping constants into named variables
llvm-svn: 190787
2013-09-16 15:45:06 +00:00
Alexey Samsonov ad7925e0c1 Minor enhancements for sanitizer_common build rules
llvm-svn: 190786
2013-09-16 15:43:23 +00:00
Evgeniy Stepanov 08d649c024 [msan] Check return value of main: compiler-rt tests.
llvm-svn: 190783
2013-09-16 13:25:26 +00:00
Evgeniy Stepanov 65562f5281 [msan] Fix origin of deallocated memory.
MSan poisons deallocated memory but it used to give it an invalid origin value,
resulting in confusing reports. This change associates deallocation stack trace
with such memory.

Note that MSan does not have quarantine, and use-after-free detection is very
limited.

llvm-svn: 190781
2013-09-16 11:03:31 +00:00
Evgeniy Stepanov 0da35401ce [msan] Add source file:line to stack origin reports.
Test.

llvm-svn: 190690
2013-09-13 12:55:07 +00:00
Evgeniy Stepanov ac5ac34cf7 [msan] Add source file:line to stack origin reports.
Runtime library part.

llvm-svn: 190686
2013-09-13 12:49:13 +00:00
Evgeniy Stepanov 9be91e970e [msan] Intercept tzset.
llvm-svn: 190682
2013-09-13 11:27:38 +00:00
Evgeniy Stepanov 8f0b7feb4c [msandr] Add debugging instructions to README.txt.
llvm-svn: 190680
2013-09-13 11:00:50 +00:00
Kostya Serebryany 3bee8efc95 [asan] Android does not have TLS
llvm-svn: 190669
2013-09-13 08:58:22 +00:00
Alexey Samsonov 70c93d3b1c [ASan] Temporary disable UAR unit test on Android due to https://code.google.com/p/address-sanitizer/issues/detail?id=222
llvm-svn: 190667
2013-09-13 08:07:21 +00:00
Kostya Serebryany 9583b87077 [asan] don't record the class_id in FakeFrame (scratching the last bits of performance)
llvm-svn: 190666
2013-09-13 07:50:44 +00:00
Kostya Serebryany 4117bdbbbc [asan] more performance to FakeStack: a) don't used atomic exchange, instead rely on regular load and store and other signal-safe logic; b) remove allocated_from_size_class_mask_ which is not helping much anyway; Another 10% speedup
llvm-svn: 190664
2013-09-13 07:20:35 +00:00
Kostya Serebryany 43c4493b44 [asan] second attempt to use TLS with fake stack. This time it looks (more) async-signal safe.
llvm-svn: 190663
2013-09-13 06:32:26 +00:00
Kostya Serebryany c19851ab6c [asan] undo the previous commit since TLS hack breaks with signals... :(
llvm-svn: 190662
2013-09-13 06:15:02 +00:00
Kostya Serebryany 096413ba3b [asan] use TLS on Linux to get the FakeStack. Saves 15% performance
llvm-svn: 190661
2013-09-13 06:04:18 +00:00
Kostya Serebryany 77caab4d7b [asan] inline PoisonShadow in FakeStack to get ~10% speedup
llvm-svn: 190660
2013-09-13 05:57:58 +00:00
Peter Collingbourne cdec0a8ad2 [dfsan] Add a few easy functions to the ABI list.
llvm-svn: 190653
2013-09-13 01:38:56 +00:00
Kostya Serebryany 7638aa135e [asan] a bit of performance improvement in fake stack, generalized one test, fixed android build of another test
llvm-svn: 190606
2013-09-12 14:41:10 +00:00
Kostya Serebryany 627ea6391e [asan] add a test for use-after-return and exceptions and fix it. Not 100% sure this is a complete fix, will keep looking for harder cases.
llvm-svn: 190603
2013-09-12 13:25:29 +00:00
Alexander Potapenko 9caa10d0c7 [ASan] Do not build asan_fake_stack_test.cc on OSX until https://code.google.com/p/address-sanitizer/issues/detail?id=222 is fixed.
llvm-svn: 190597
2013-09-12 09:46:56 +00:00
Kostya Serebryany 79d98a851b [asan] limit the size of the fake stack with a reasonable constant. This fixes a failure when the main thread's stack is considered unlimited (very large).
llvm-svn: 190596
2013-09-12 09:08:13 +00:00
Kostya Serebryany 44441cc34b [asan] (part 2) don't lazy-init fake_stack if we only need to check that fake_stack exists (should fix 32-bit builds)
llvm-svn: 190594
2013-09-12 08:47:00 +00:00
Kostya Serebryany 736bd08e05 [asan] don't lazy-init fake_stack if we only need to check that fake_stack exists (should fix 32-bit builds)
llvm-svn: 190593
2013-09-12 08:43:44 +00:00
Kostya Serebryany 628cda7367 [asan] hopefully make the FakeStack async-signal safe, enable the related test
llvm-svn: 190592
2013-09-12 08:34:50 +00:00
Evgeniy Stepanov 58dbe06230 [asan] Fix deadlock in stack unwinder on android/x86.
Fixes PR17116.
Patch by 林作健 (manjian2006 at gmail.com).

llvm-svn: 190590
2013-09-12 08:16:28 +00:00
Kostya Serebryany e8f961e847 [asan] use xchg instead of CAS in FakeStack::Allocate (5% faster for this case)
llvm-svn: 190589
2013-09-12 07:28:42 +00:00
Kostya Serebryany 729c8dc65b [asan] fully re-implement the FakeStack (use-after-return) to make it faster and async-signal-safe. The implementation is not yet complete (see FIXMEs) but the existing tests pass.
llvm-svn: 190588
2013-09-12 07:11:58 +00:00
Bill Wendling a6ec07ce2d Fix typo
llvm-svn: 190543
2013-09-11 19:35:32 +00:00
Daniel Jasper 333e0cb055 Revert r190520 as it wasn't the right fix.
llvm-svn: 190524
2013-09-11 12:53:04 +00:00
Daniel Jasper 2b3f143f23 Add empty virtual destructor...
... as this otherwise triggers -Wnon-virtual-dtor.

llvm-svn: 190520
2013-09-11 12:28:15 +00:00
Alexey Samsonov 4a2447fd81 [TSan] Use --whole-archive around TSan runtime in old TSan makefiles. Fix a Go build
llvm-svn: 190513
2013-09-11 11:06:06 +00:00
Alexey Samsonov 279283c064 [Sanitizer] build sanitizer_common library with -Wglobal-constructors
llvm-svn: 190504
2013-09-11 09:57:15 +00:00
Alexey Samsonov e99a0b9b76 [TSan] Use Clang to compile and link TSan unit tests with TSan runtime
llvm-svn: 190503
2013-09-11 09:56:33 +00:00
Alexey Samsonov d397a9ba1d Fixup for r190410: use lazy initialization for symbolizer as some compilers emit global constructor to setup vptr
llvm-svn: 190414
2013-09-10 16:16:27 +00:00
Timur Iskhodzhanov 92702d8401 [ASan] Remove the explicit function prototypes for intercepted functions on Windows
llvm-svn: 190411
2013-09-10 14:42:15 +00:00
Alexey Samsonov 7a36e6126b [Sanitizer] Refactor symbolization interface: use class instead of several functions. Move some code around to get rid of extra source files
llvm-svn: 190410
2013-09-10 14:36:16 +00:00
Kostya Serebryany 8fc35ca008 [asan] refactor the use-after-return API so that the size class is computed at compile time instead of at run-time. compiler-rt part
llvm-svn: 190406
2013-09-10 13:16:26 +00:00
Evgeniy Stepanov df96e863de [msan] bool -> int to make msan_interface.h C-compatible.
llvm-svn: 190402
2013-09-10 11:04:37 +00:00
Timur Iskhodzhanov 190784b21b [ASan] Don't crash in DescribeHeapAddress if we don't know the current thread's ID
Also make DescribeThread easier to use.
This was firing on Dr.ASan runs, not sure how to repro InvalidTID in a simple test.

llvm-svn: 190392
2013-09-10 08:36:21 +00:00
Eli Friedman abc1a5cb9b Delete unused variables.
llvm-svn: 190383
2013-09-10 03:27:07 +00:00
Peter Collingbourne 0dca2e5ed1 [dfsan] Initial set of DFSAN_OPTIONS flags.
llvm-svn: 190379
2013-09-10 01:51:35 +00:00
Bill Wendling 97c22c3c92 Don't allow a NULL-length file. Try to revert to the buffered version.
llvm-svn: 190359
2013-09-09 22:25:46 +00:00
Evgeniy Stepanov 842fa3f80d [msan] Intercept fstatat / fstatat64.
llvm-svn: 190306
2013-09-09 13:40:41 +00:00
Evgeniy Stepanov cf02f171a9 [sanitizer] Fix PR17138.
strerror_r on OSX returns a positive error code when the errno value is
unknown. Buffer contents are initialized in any case.

llvm-svn: 190295
2013-09-09 08:58:54 +00:00
Evgeniy Stepanov 80cc27857b [sanitizer] Delete extra whitespace.
llvm-svn: 190292
2013-09-09 06:18:07 +00:00
Alexey Samsonov 77029be19a [ASan] fix one more memory leak in test case
llvm-svn: 190277
2013-09-08 14:01:07 +00:00
Alexey Samsonov a302a1affc [Sanitizer] Use generic configs for running sanitizer_common unit tests
llvm-svn: 190276
2013-09-08 13:52:07 +00:00
Alexey Samsonov 071cc9e89d [ASan] turn on leak checking for ASan tests and fix a few discovered leaks
llvm-svn: 190274
2013-09-08 13:23:29 +00:00
Evgeniy Stepanov 73166796a3 [sanitizer] Avoid including any system headers in the system-header-free part of the runtime library.
llvm-svn: 190161
2013-09-06 15:34:17 +00:00
Evgeniy Stepanov 09d33c67e1 [sanitizer] Fix Android build.
Android actually has "__unused" macro defined in <cdefs.h>.

llvm-svn: 190160
2013-09-06 14:58:49 +00:00
Evgeniy Stepanov 5c1035e7fa [sanitizer] A bunch of linux system call handlers.
llvm-svn: 190157
2013-09-06 14:20:01 +00:00
Alexander Potapenko 2a54274c25 [ASan] make the check for NULL more portable.
llvm-svn: 190139
2013-09-06 12:04:37 +00:00
Alexey Samsonov 6985f3f67b Fix compiler warning introduced in r190022
llvm-svn: 190137
2013-09-06 11:08:12 +00:00
Alexey Samsonov 16516b9b00 Migrate ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS to new spelling - ATTRIBUTE_NO_SANITIZE_ADDRESS
llvm-svn: 190136
2013-09-06 11:07:33 +00:00
Kostya Serebryany 895ff83e47 [tsan] make calloc crash instead of returning 0 on overflow (controlled by the allocator_may_return_null flag)
llvm-svn: 190135
2013-09-06 11:04:14 +00:00
Kostya Serebryany 6c5b034d7b [msan] make calloc crash instead of returning 0 on overflow (controlled by the allocator_may_return_null flag)
llvm-svn: 190132
2013-09-06 10:58:55 +00:00
Kostya Serebryany e009ef4ac1 [asan] make calloc crash instead of returning 0 on overflow (controlled by the allocator_may_return_null flag)
llvm-svn: 190128
2013-09-06 09:51:50 +00:00
Kostya Serebryany ada5a7b7ef [sanitizer] make the allocator crash instead of returning 0 on huge size (controlled by the allocator_may_return_null flag)
llvm-svn: 190127
2013-09-06 09:25:11 +00:00
Kostya Serebryany 5e0b2085c8 [tsan] add colors to tsan output
llvm-svn: 190045
2013-09-05 11:23:27 +00:00
Reid Kleckner d483c072af sanitizers: Make sure Visual Studio gets error reports
Visual Studio appears to close stderr before launching a non-console
win32 program.  This means we don't see any sanitizer reports.  If
stderr printing fails, call OutputDebugStringA to get the reports into
the Visual Studio debugger console.

llvm-svn: 190030
2013-09-05 03:19:57 +00:00
Reid Kleckner 0071525492 asan: Add a wcslen interceptor mirroring strlen
Tested on Linux, since I can't build the tests on Windows yet.

llvm-svn: 190022
2013-09-05 01:13:49 +00:00
Kostya Serebryany 2e57127cf7 [asan] add a test that demonstrates why the current use-after-return is not signal-safe
llvm-svn: 189943
2013-09-04 14:39:43 +00:00
Kostya Serebryany 1f13414d45 [asan] make use-after-return handle very deep recursion; fixes 483.xalancbmk in UAR mode
llvm-svn: 189929
2013-09-04 10:59:32 +00:00
Alexey Samsonov 5b2000e4d9 Disable FindPathToBinary test on Android
llvm-svn: 189923
2013-09-04 06:40:48 +00:00
Timur Iskhodzhanov 2eea5894fe [asan] Hopefully un-break the RTL on Windows
llvm-svn: 189821
2013-09-03 15:50:13 +00:00
Timur Iskhodzhanov 2b8d35f8ac [asan] Hopefully fix the RTL build on Windows (part 2)
llvm-svn: 189817
2013-09-03 15:09:21 +00:00
Dmitry Vyukov 4e27d1fdaf tsan: catch races on condition variables
llvm-svn: 189816
2013-09-03 15:04:15 +00:00
Kostya Serebryany 14b7caca13 [asan] attemping to fix the Windows build
llvm-svn: 189814
2013-09-03 14:53:02 +00:00
Timur Iskhodzhanov 8a9f07626f Revert r185536 as it neither fixes any memory leaks, nor is it necessary (see the example from "man pthread_getattr_np")
llvm-svn: 189810
2013-09-03 14:21:21 +00:00
Kostya Serebryany 6bafcd1949 implement PR17059: more visible diagnostics for stack-buffer-overflow
llvm-svn: 189806
2013-09-03 13:58:04 +00:00
Sergey Matveev b9d34443f2 [lsan] Colorize LSan reports.
llvm-svn: 189804
2013-09-03 13:31:03 +00:00