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1059 Commits

Author SHA1 Message Date
Evgeniy Stepanov 8f944b6672 [sanitizer] Fix kernel headers compatibility on powerpc64. 
llvm-svn: 195442
 2013-11-22 11:01:43 +00:00
Kostya Serebryany b1118e5952 Call real pthread_attr_getstack instead of the interceptor 
Summary:
Call real pthread_attr_getstack instead of the interceptor
when we do intercept pthread_attr_getstack.

Reviewers: samsonov, eugenis

Reviewed By: samsonov

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2237

llvm-svn: 195441
 2013-11-22 10:44:31 +00:00
Evgeniy Stepanov db643d7678 [sanitizer] Add kernel_stat definitions for arm. 
llvm-svn: 195436
 2013-11-22 10:09:34 +00:00
Evgeniy Stepanov f3aa5b5257 [sanitizer] Restore perf_event_attr handling. 
This time in a forward/backward compatible way.

llvm-svn: 195434
 2013-11-22 09:32:39 +00:00
Evgeniy Stepanov c53407de3c [sanitizer] Fix build. 
llvm-svn: 195433
 2013-11-22 09:26:10 +00:00
Evgeniy Stepanov 39cc337e20 [sanitizer] Change the way we use certain linux kernel headers. 
Some linux headers are broken on older kernels.
Instead of depending on the constants and types from such headers directly,
we provide our own definitions and then verify them with compile-time
assertions. This makes the dependency on the headers test-only and would allow
switching to some other way of testing on older kernels, or even disable the
tests as the last resort (after all, kernel interfaces are supposed to be
stable).

llvm-svn: 195427
 2013-11-22 09:01:50 +00:00
Evgeniy Stepanov fe8ed4a591 [sanitizer] Add missing header dependencies. 
llvm-svn: 195425
 2013-11-22 08:55:33 +00:00
Peter Collingbourne f09d5d03fd Revert r195381, "Implement a bunch of custom glibc wrappers & corresponding tests." 
It broke a buildbot.

llvm-svn: 195392
 2013-11-21 23:48:19 +00:00
Peter Collingbourne 0a14a71061 Implement a bunch of custom glibc wrappers & corresponding tests. 
- Introduce several new custom glibc wrappers
- Implement some of the not yet implemented wrappers
- Refactor and extend the tests
- Add script to make sure all declare custom glibc wrappers are implemented & tested.

Patch by Lorenzo Martignoni!

Differential Revision: http://llvm-reviews.chandlerc.com/D2234

llvm-svn: 195381
 2013-11-21 23:18:03 +00:00
Dmitry Vyukov 70fcec46e9 tsan: remove debug output from test 
llvm-svn: 195347
 2013-11-21 11:50:45 +00:00
Evgeniy Stepanov 0958ecca7e [msan] Tweak io_submit syscall hook. 
llvm-svn: 195246
 2013-11-20 13:04:23 +00:00
Kostya Serebryany 7b664299f0 [asan] new shadow poison magic for contiguous-container-buffer-overflow, addressed Alexey Samsonov's comments for r195011 
llvm-svn: 195117
 2013-11-19 08:40:07 +00:00
Kostya Serebryany 3d97c2040d [asan] introduce __sanitizer_annotate_contiguous_container 
llvm-svn: 195011
 2013-11-18 14:02:05 +00:00
Bob Wilson 99d8fa92c3 Remove #include of net/ip_mroute.h for SANITIZER_MAC. 
This header has not been supported at all for the last 2 major OS X releases.
Removed its include and the capture of related symbols.

<rdar://problem/15303348>

llvm-svn: 194841
 2013-11-15 19:13:08 +00:00
Dmitry Vyukov 4bbe6dc8a9 tsan: add support for robust mutexes 
llvm-svn: 194823
 2013-11-15 16:58:12 +00:00
Kostya Serebryany b41503253b [asan] helper script to dump/merge coverage data 
llvm-svn: 194809
 2013-11-15 11:51:08 +00:00
Alexey Samsonov a6e8322fb1 [Sanitizer] Make slow unwinder on Linux more robust 
llvm-svn: 194805
 2013-11-15 10:57:56 +00:00
Bob Wilson a08e9ac927 Reapply asan coverage changes 194702-194704. 
I still don't know what is causing our bootstrapped LTO buildbots to fail,
but llvm r194701 seems to be OK and I can't imagine that these changes could
cause the problem.

llvm-svn: 194790
 2013-11-15 07:18:15 +00:00
Bob Wilson abc91eacac Speculatively revert asan coverage changes 194702-194704. 
Apple's bootstrapped LTO builds have been failing, and these changes (along
with llvm 194701) are the only things on the blamelist.  I will either reapply
these changes or help debug the problem, depending on whether this fixes the
buildbots.

llvm-svn: 194779
 2013-11-15 03:26:28 +00:00
Kostya Serebryany c46f281f83 [asan] unbreak dfsan, which includes sanitizer/common_interface_defs.h into internal sources (although it shoudn't) 
llvm-svn: 194704
 2013-11-14 13:44:43 +00:00
Kostya Serebryany 599f0c1309 [asan] disable CovDump on Windows for now (fails to compile) 
llvm-svn: 194703
 2013-11-14 13:37:54 +00:00
Kostya Serebryany 91c52d9552 [asan] Poor man's coverage that works with ASan (compiler-rt part) 
llvm-svn: 194702
 2013-11-14 13:28:17 +00:00
Alexey Samsonov 4d369187ec [Sanitizer] Print symbolized stack frame using a single Printf() call. 
This reduces the number of "write" syscalls performed to print a single
stack frame description, and makes sanitizer output less intermixed with
program output. Also, add a number of unit tests.

llvm-svn: 194686
 2013-11-14 09:41:24 +00:00
Alexey Samsonov 498e5906ad [Sanitizer] Add print_summary runtime flag to disable error summaries (UBSan doesn't need them) 
llvm-svn: 194685
 2013-11-14 08:56:59 +00:00
Alexey Samsonov cf6ac12e23 [Sanitizer] Use same PC threshold in slow unwinder on all platforms 
llvm-svn: 194580
 2013-11-13 15:20:10 +00:00
Alexey Samsonov 9ff4598225 [ASan] Do not rely on malloc context in allocator reports. 
Invoke a fatal stack trace unwinder when ASan prints allocator-relevant
error reports (double-free, alloc-dealloc-mismatch, invalid-free).
Thus we'll be able to print complete stack trace even if allocation/free
stacks are not stored (malloc_context_size=0).

Based on the patch by Yuri Gribov!

llvm-svn: 194579
 2013-11-13 14:46:58 +00:00
Alexander Potapenko fa82ba91f9 [ASan] Don't call __asan_init() from certain interceptors on Darwin. 
Fixes http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58994, which hadn't
manifested in LLVM because libclang_rt.asan_osx_dynamic.dylib used to depend on
the Foundation framework.
Without that dependency some interceptors may be called from the system
libraries before libSystem_initializer() is called, which lead to assertion
failures in sanitizer_mac.cc (_NSGetEnviron() returns NULL).

To fix the problem we fall back to the original functions in the common
libsanitizer interceptors and the __cxa_atexit() interceptor on Darwin.

This patch also prints a better error message in the case _NSGetEnviron()
returns NULL.

llvm-svn: 194573
 2013-11-13 13:34:53 +00:00
Alexey Samsonov 6345150992 [Sanitizer] Specify a default value for each common runtime flag 
llvm-svn: 194479
 2013-11-12 13:59:08 +00:00
Evgeniy Stepanov 90e12a6cb2 [sanitizer] Avoid needless use of stringification (#symver) in INTERCEPT_FUNCTION_VER. 
This is a workaround for clang-format bug (PR17874).

llvm-svn: 194468
 2013-11-12 10:21:52 +00:00
Evgeniy Stepanov b69699eb58 [sanitizer] Warn if interception fails. 
This includes a clang-format pass over common interceptors.

llvm-svn: 194372
 2013-11-11 11:28:30 +00:00
Timur Iskhodzhanov e87f5701bb Remove a FIXME now that I can't reproduce the problem 
llvm-svn: 194331
 2013-11-09 15:01:23 +00:00
Timur Iskhodzhanov 1f1c7ec400 [Sanitizers] Share some stack walking code between Windows and Linux 
Reviewed at http://llvm-reviews.chandlerc.com/D2126

llvm-svn: 194326
 2013-11-09 13:59:12 +00:00
Alexander Potapenko 49034e3c33 [ASan] Add CMake configs for libclang_rt.asan_iossim_dynamic.dylib 
CMake changes to build the ASan runtime for the iOS simulator. This is a universal library targeting the same architectures as the OSX ASan runtime does, thus the iossim version can't live in the same universal libclang_rt.asan_osx_dynamic.dylib

The difference between the OSX and iossim builds is in the -mios-simulator-version-min and -ios_simulator_version_min flags that tell Clang to compile and link iossim code.

The iossim runtime can only be built on a machine with both Xcode and the iOS Simulator SDK installed. If xcodebuild -version -sdk iphonesimulator Path returns a nonempty path, it is used when compiling and linking the iossim runtime.

llvm-svn: 194199
 2013-11-07 10:08:19 +00:00
Alexey Samsonov b3d939902a [Sanitizer] Make StackTrace::Unwind the only public way to unwind a stack trace. 
llvm-svn: 194196
 2013-11-07 07:28:33 +00:00
Alexey Samsonov 5d350b2ab6 [Sanitizer] Presumable fix stack trace unwinding on Windows 
llvm-svn: 194195
 2013-11-07 06:53:41 +00:00
Alexey Samsonov e13f775a63 [Sanitizer] Call Windows unwinder 'slow' and share StackTrace::Unwind across all platforms. No functionality change. 
llvm-svn: 194193
 2013-11-07 06:33:06 +00:00
Kostya Serebryany 82d0679e92 [asan] attempting to fix x32 build (see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59018) 
llvm-svn: 194155
 2013-11-06 17:47:39 +00:00
Alexey Samsonov b0bad7b3b8 [ASan] Make sure slow stack unwinder doesn't return empty stacks. 
llvm-svn: 194107
 2013-11-05 23:29:12 +00:00
Evgeniy Stepanov a6b5eec757 [sanitizer] Intercept strptime. 
llvm-svn: 193903
 2013-11-02 01:01:35 +00:00
Alexey Samsonov 31d4c34433 [Sanitizer] Fix Go build 
llvm-svn: 193873
 2013-11-01 18:00:22 +00:00
Evgeniy Stepanov 7342857825 [sanitizer] Switch to an older version of struct iocb that is found in the latest Android NDK. 
They are binary compatible, and we don't use any of the new fields anyway.

llvm-svn: 193870
 2013-11-01 17:48:35 +00:00
Alexey Samsonov c5e1b16d0c [ASan] Kill use_stack_depot runtime flag and stack trace compression routines. 
llvm-svn: 193868
 2013-11-01 17:23:22 +00:00
Alexey Samsonov 5dc6cff06a [Sanitizer] Unify summary reporting across all sanitizers. 
This change unifies the summary printing across sanitizers:
now each tool uses specific version of ReportErrorSummary() method,
which deals with symbolization of the top frame and formatting a
summary message. This change modifies the summary line for ASan+LSan mode:
now the summary mentions "AddressSanitizer" instead of "LeakSanitizer".

llvm-svn: 193864
 2013-11-01 17:02:14 +00:00
Evgeniy Stepanov 2335879ff1 [sanitizer] Enhance io_submti syscall handler. 
llvm-svn: 193848
 2013-11-01 01:20:39 +00:00
Alexey Samsonov 4708c5912b Consistently use StackTrace::PrintStack in ASan, LSan and MSan 
llvm-svn: 193834
 2013-11-01 00:19:46 +00:00
Alexey Samsonov 627e2c0dd7 [Sanitizer] Add Symbolizer::AddHooks() and use it in TSan and MSan. 
Summary:
TSan and MSan need to know if interceptor was called by the
user code or by the symbolizer and use pre- and post-symbolization hooks
for that. Make Symbolizer class responsible for calling these hooks instead.
This would ensure the hooks are only called when necessary (during
in-process symbolization, they are not needed for out-of-process) and
save specific sanitizers from tracing all places in the code where symbolization
will be performed.

Reviewers: eugenis, dvyukov

Reviewed By: eugenis

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2067

llvm-svn: 193807
 2013-10-31 21:44:07 +00:00
Alexander Potapenko ac501f0250 [libsanitizer] Define SANITIZER_IOS when building for iOS or iOS simulator. 
Do not use struct stat64 and struct statfs64 when building for iOS, where __DARWIN_ONLY_64_BIT_INO_T is set to 1.

llvm-svn: 193775
 2013-10-31 17:38:18 +00:00
Evgeniy Stepanov 1cb37c4ee5 [sanitizer] Intercept getline, getdelim. 
llvm-svn: 193730
 2013-10-31 01:17:41 +00:00
Alexey Samsonov 3c845b6f1b [Sanitizer] Update comment in sanitizer_symbolizer.h 
llvm-svn: 193700
 2013-10-30 17:17:35 +00:00
Alexey Samsonov 78928c1d2a [Sanitizer] Use SpinMutex for Symbolizer initialization (per dvyukov's suggestion) 
llvm-svn: 193697
 2013-10-30 17:05:37 +00:00
Evgeniy Stepanov 60db142d86 [asan] Fix syscall hooks build on Android. 
llvm-svn: 193670
 2013-10-30 00:58:17 +00:00
Evgeniy Stepanov cbe83ea141 [santiizer] Disable sincos interceptor in OSX. 
llvm-svn: 193667
 2013-10-30 00:32:50 +00:00
Evgeniy Stepanov 0bd1f00ec6 [sanitizer] Intercept drand48_r, lrand48_r. 
llvm-svn: 193655
 2013-10-29 22:25:27 +00:00
Evgeniy Stepanov bf60342d47 [sanitizer] Intercept sincos, remquo, lgamma, lgamma_r. 
llvm-svn: 193645
 2013-10-29 19:49:35 +00:00
Evgeniy Stepanov 477f8b73a5 [sanitizer] Ptrace syscall handler. 
llvm-svn: 193633
 2013-10-29 17:59:45 +00:00
Dmitry Vyukov 3e8432ee6c tsan/asan: support pthread_setname_np to set thread names 
llvm-svn: 193602
 2013-10-29 10:30:39 +00:00
Alexey Samsonov a687d2593f [Sanitizer] Simplify StackTrace::PrintStack interface: prefer common flags to turn on/off the symbolization 
llvm-svn: 193587
 2013-10-29 05:31:25 +00:00
Evgeniy Stepanov 451c8de2d8 [msan] Intercept shmat. 
llvm-svn: 193581
 2013-10-29 02:48:49 +00:00
Alexey Samsonov 590fe110f9 [Sanitizer] Revert r193501 and properly fix r193448 
llvm-svn: 193522
 2013-10-28 16:31:39 +00:00
Alexey Samsonov 4cc939e6a6 [Sanitizer] Add pthread_attr_getaffinity_np to the list of versioned functions 
llvm-svn: 193470
 2013-10-26 12:54:03 +00:00
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 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 c2b6cb0747 [sanitizer] Intercept pthread_attr_get*. 
llvm-svn: 193405
 2013-10-25 13:01:31 +00:00
Evgeniy Stepanov be9cdbb58c [sanitizer] Intercept random_r. 
llvm-svn: 193396
 2013-10-25 08:58:13 +00:00
Evgeniy Stepanov f312b480e2 [sanitizer] Intercept shmctl. 
llvm-svn: 193348
 2013-10-24 14:47:34 +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
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 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
Evgeniy Stepanov 0229c09d43 [sanitizer] Intercept initgroups. 
llvm-svn: 193158
 2013-10-22 12:24:48 +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
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
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
Evgeniy Stepanov 70d5abfba2 [sanitizer] Intercept getmntent, getmntent_r. 
llvm-svn: 192959
 2013-10-18 09:41:43 +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
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 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
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 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 7ac0b2b0e1 tsan: use sanitizer::CommonFlags in tsan 
llvm-svn: 192692
 2013-10-15 12:25:29 +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
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
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
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
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
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
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 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 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 fdfb2ade8f asan/msan/tsan: move _exit interceptor to common interceptors 
llvm-svn: 191903
 2013-10-03 15:22:29 +00:00
Dmitry Vyukov 83ebd022d7 tsan: fix false positive in localtime() 
llvm-svn: 191899
 2013-10-03 14:12:09 +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
Evgeniy Stepanov 01781722b6 [sanitizer] Intercept backtrace, backtrace_symbols. 
llvm-svn: 191516
 2013-09-27 12:40:23 +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
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 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
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 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
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 ad7925e0c1 Minor enhancements for sanitizer_common build rules 
llvm-svn: 190786
 2013-09-16 15:43:23 +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 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
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
Eli Friedman abc1a5cb9b Delete unused variables. 
llvm-svn: 190383
 2013-09-10 03:27:07 +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 a302a1affc [Sanitizer] Use generic configs for running sanitizer_common unit tests 
llvm-svn: 190276
 2013-09-08 13:52:07 +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
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 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