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25 Commits

Author SHA1 Message Date
Kostya Serebryany b9e31d7fcd [asan] use some LIKELY/UNLIKELY 
llvm-svn: 208776
 2014-05-14 14:03:31 +00:00
Alexey Samsonov 359c105c92 Fix StackTrace::LocatePcInTrace, add more unit tests for generic StackTrace 
llvm-svn: 202849
 2014-03-04 14:06:11 +00:00
Alexey Samsonov 3d9adc0a73 [ASan] Speed up stack trace unwinding for stacks of size 2. 
Summary:
We don't need to do any work in this case - just take
the current PC and caller PC.

Reviewers: eugenis, ygribov

Reviewed By: eugenis

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2936

llvm-svn: 202845
 2014-03-04 13:12:25 +00:00
Evgeniy Stepanov 769d46f373 [sanitizer] Use system unwinder in signal handlers on Android. 
Because of the way Bionic sets up signal stack frames, libc unwinder is unable
to step through it, resulting in broken SEGV stack traces.

Luckily, libcorkscrew.so on Android implements an unwinder that can start with
a signal context, thus sidestepping the issue.

llvm-svn: 201151
 2014-02-11 13:38:57 +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
Sergey Matveev d8fb4d8f91 [sanitizer] Expose __sanitizer_print_stack_trace(). 
Expose a new interface function for debugging code built with sanitizer tools.
Add an ASan implementation.

llvm-svn: 196302
 2013-12-03 18:24:28 +00:00
Timur Iskhodzhanov a10c46f2ae Fix current stack unwinding when using DRASan 
llvm-svn: 195956
 2013-11-29 12:53:30 +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
Alexey Samsonov c129e65661 [Sanitizer] Turn GetStackTrace() into StackTrace::Unwind() 
llvm-svn: 192533
 2013-10-12 12:23:00 +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
Sergey Matveev af179b8d63 [sanitizer] Move GetStackTrace from ASan to sanitizer_common. 
llvm-svn: 181424
 2013-05-08 12:45:55 +00:00
Sergey Matveev 0c8ed9ce44 [asan] Common flags in ASan. 
Some flags that are common to ASan/MSan/TSan/LSan have been moved to
sanitizer_common.

llvm-svn: 181193
 2013-05-06 11:27:58 +00:00
Kostya Serebryany baf583c443 [asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder 
llvm-svn: 170117
 2012-12-13 09:34:23 +00:00
Kostya Serebryany 7575968aa4 [asan] actually move StackTrace to sanitizer_common 
llvm-svn: 162757
 2012-08-28 14:11:57 +00:00
Kostya Serebryany a57b4e823a [asan] even more refactoring to move StackTrace to sanitizer_common 
llvm-svn: 162754
 2012-08-28 13:49:49 +00:00
Kostya Serebryany ee92877f17 [asan] more refactoring to move StackTrace to sanitizer_common 
llvm-svn: 162752
 2012-08-28 13:25:55 +00:00
Kostya Serebryany 6b0d775229 [asan] some renaming before we move StackTrace into sanitizer_common 
llvm-svn: 162747
 2012-08-28 11:54:30 +00:00
Alexey Samsonov 34efb8e9b9 [ASan] Use common flags parsing machinery. 
llvm-svn: 159933
 2012-07-09 14:36:04 +00:00
Chandler Carruth bbff278c9c Lots of trivial changes to remove extraneous semicolons throughout ASan. 
llvm-svn: 159128
 2012-06-25 06:53:10 +00:00
Kostya Serebryany 1d35d155fd [asan] more renaming 
llvm-svn: 157747
 2012-05-31 15:02:07 +00:00
Kostya Serebryany 8d03204204 [asan] more renaming 
llvm-svn: 157746
 2012-05-31 14:35:53 +00:00
Kostya Serebryany 54a3cac5c5 [asan] fix unwinding inside libc intercepors (asan issue #46) 
llvm-svn: 152768
 2012-03-15 01:36:00 +00:00
Evgeniy Stepanov 84c44a8b8b EHABI-based stack trace on ARM. 
The change removes the unused FLAG_fast_unwind, and forces EHABI-based unwind
on ARM, and fast (FP-based) unwind everywhere else.

llvm-svn: 148468
 2012-01-19 11:34:18 +00:00
Alexey Samsonov 2d3a67b73b AddressSanitizer: create AsanThreadSummary together with AsanThread (in parent thread) 
llvm-svn: 148286
 2012-01-17 06:35:31 +00:00
Kostya Serebryany 019b76f5fd AddressSanitizer run-time library. Not yet integrated with the compiler-rt build system, but can be built using the old makefile. See details in README.txt 
llvm-svn: 145463
 2011-11-30 01:07:02 +00:00