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304 Commits

Author SHA1 Message Date
Alexey Samsonov 6322e036aa [Sanitizer] Replace Symbolizer::IsAvailable and Symbolizer::IsExternalAvailable with Symbolizer::CanReturnFileLineInfo. 
Remove now redundant checks in symbolizer initialization in TSan and MSan.

llvm-svn: 198000
 2013-12-25 07:09:44 +00:00
Evgeniy Stepanov 09021e02bc [msan] Add missing visibility attribute to MSan new/delete interceptors. 
llvm-svn: 197809
 2013-12-20 13:18:07 +00:00
Evgeniy Stepanov 42cebb00da [sanitizer] Use the new sanitizer_interception.h header in all interceptors. 
llvm-svn: 197808
 2013-12-20 13:17:31 +00:00
Evgeniy Stepanov 66297cac72 [msan] Wrap indirect calls to REAL(x) in interceptors. 
llvm-svn: 197806
 2013-12-20 12:20:15 +00:00
Evgeniy Stepanov 61628196e4 [msan] Replace wrap_indirect_calls runtime flag with an interface method. 
llvm-svn: 197799
 2013-12-20 11:05:19 +00:00
Alexey Samsonov f2c7659cf8 [ASan] Get rid of ASan-specific functions for printing stack traces 
llvm-svn: 197672
 2013-12-19 11:25:05 +00:00
Evgeniy Stepanov a164bf5e89 [msan] Disable DynamoRio detection. 
This code is not robust enough and triggers when simply linking with
libdynamorio.so, without any code translation at all. Disabling it is safe
(i.e. we may unpoison too much memory and see false negatives, but never false
positives).

llvm-svn: 197568
 2013-12-18 13:25:45 +00:00
Evgeniy Stepanov cb98c5f6f0 [msan] Relax gethostbyname_r test condition. 
Apparently, its return value depends on the glibc version.

llvm-svn: 197390
 2013-12-16 15:01:31 +00:00
Evgeniy Stepanov 43fc44007d [msan] Fix gethostbyname_r and similar interceptors. 
*h_errno is written not on success, but on failure.
In fact, it seems like it can be written even when return value signals
success, so we just unpoison it in all cases.

llvm-svn: 197383
 2013-12-16 13:24:33 +00:00
Evgeniy Stepanov 3158ec4002 [msan] Fix strncat interceptor, add missing tests. 
llvm-svn: 197244
 2013-12-13 16:31:59 +00:00
Evgeniy Stepanov 879c552dd9 [msan] Wrap indirect calls from sanitizer rtl when running under DR. 
llvm-svn: 197226
 2013-12-13 13:13:46 +00:00
Evgeniy Stepanov c8ccef49cc [msan] Add a check for recursive __msan_init. 
llvm-svn: 197218
 2013-12-13 09:11:14 +00:00
Evgeniy Stepanov 86d8fb5ba1 [msan] Clean stack and TLS shadow on thread exit. 
llvm-svn: 197156
 2013-12-12 13:48:47 +00:00
Evgeniy Stepanov cd07898cf8 [msan] Get stack limits with pthread_create interceptor. 
Before we did it lazily on the first stack unwind in the thread.
It resulted in deadlock when the unwind was caused by memory allocation
inside pthread_getattr_np:
  pthread_getattr_np   <<< not reentable
  GetThreadStackTopAndBottom
  __interceptor_realloc
  pthread_getattr_np
  

llvm-svn: 197026
 2013-12-11 10:55:42 +00:00
Evgeniy Stepanov 67bbf967b0 [msan] Allow strlen() (and similar functions) of shadow memory. 
llvm-svn: 196572
 2013-12-06 09:19:07 +00:00
Alexey Samsonov 2d42b1d693 Run TSan/MSan lit tests only on 64-bit platforms 
llvm-svn: 196501
 2013-12-05 12:53:36 +00:00
Sergey Matveev 9be70fbda9 [sanitizer] Introduce VReport and VPrintf macros and use them in sanitizer code. 
Instead of "if (common_flags()->verbosity) Report(...)" we now have macros.

llvm-svn: 196497
 2013-12-05 12:04:51 +00:00
Evgeniy Stepanov c0378e72d1 [sanitizer] Intercept textdomain. 
Patch by Alexander Taran.

llvm-svn: 196098
 2013-12-02 13:43:26 +00:00
Evgeniy Stepanov b56c5cd95e [sanitizer] Intercept times. 
llvm-svn: 195918
 2013-11-28 14:41:22 +00:00
Evgeniy Stepanov 9c1f8323ae [sanitizer] Intercept iconv. 
llvm-svn: 195917
 2013-11-28 14:14:48 +00:00
Evgeniy Stepanov b76b687628 [sanitizer] Intercept __xpg_strerror_r. 
llvm-svn: 195839
 2013-11-27 12:29:10 +00:00
Dmitry Vyukov 7bd319cc08 tsan: fix flags parsing 
- running_on_valgrind was not parsed in some contexts
- refactor code a bit
- add comprehensive tests for flags parsing

llvm-svn: 195831
 2013-11-27 09:54:10 +00:00
Dmitry Vyukov ee882ba4a1 tsan: support synchronization by means of linux aio 
http://llvm-reviews.chandlerc.com/D2269

llvm-svn: 195830
 2013-11-27 09:10:47 +00:00
Evgeniy Stepanov 1bdf5c93e1 [msan] Test for r195349. 
llvm-svn: 195350
 2013-11-21 12:01:07 +00:00
Evgeniy Stepanov 0958ecca7e [msan] Tweak io_submit syscall hook. 
llvm-svn: 195246
 2013-11-20 13:04:23 +00:00
Evgeniy Stepanov 584fd96e9e [msan] Unpoison memory that is returned to the OS and flush its shadow. 
llvm-svn: 195244
 2013-11-20 12:51:14 +00:00
Evgeniy Stepanov bfb2016c83 [msan] Fix origin tracking in unaligned load/store. 
llvm-svn: 195130
 2013-11-19 14:47:56 +00:00
Evgeniy Stepanov 5912fa4c4b [msan] A test for r194697. 
llvm-svn: 194699
 2013-11-14 12:31:18 +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 5a29068b97 [msan] One more test for r194374. 
llvm-svn: 194375
 2013-11-11 13:38:24 +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
Evgeniy Stepanov bfdb9b2ec6 [msan] Sanity check for non-PIE. 
llvm-svn: 194370
 2013-11-11 09:27:20 +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
Evgeniy Stepanov 1c8c3fe4b4 [msan] Fix a very unfortunate typo in origin copying. 
It was causing randomly missing origins.

llvm-svn: 194036
 2013-11-05 01:24:38 +00:00
Evgeniy Stepanov a6b5eec757 [sanitizer] Intercept strptime. 
llvm-svn: 193903
 2013-11-02 01:01:35 +00:00
Evgeniy Stepanov 365bd0c88c [msan] Intercept memccpy. 
llvm-svn: 193897
 2013-11-01 23:49:48 +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 170d70be68 [msan] Check that address is an app region before printing shadow. 
llvm-svn: 193863
 2013-11-01 15:53:25 +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
Evgeniy Stepanov 13322c6eda [msan] Intercept dlerror. 
llvm-svn: 193760
 2013-10-31 16:58:44 +00:00
Evgeniy Stepanov a7add488ae [msan] Disable mlock/mlockall to work around a linux kernel bug. 
The same logic is present in ASan and TSan.

llvm-svn: 193755
 2013-10-31 15:51:22 +00:00
Evgeniy Stepanov 1cb37c4ee5 [sanitizer] Intercept getline, getdelim. 
llvm-svn: 193730
 2013-10-31 01:17:41 +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