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29 Commits

Author SHA1 Message Date
Kostya Serebryany 7c5ae7cbc6 [sanitizer] enable random shuffling the memory chunks inside the allocator, under a flag. Set this flag for the scudo allocator, add a test. 
llvm-svn: 279793
 2016-08-26 00:06:03 +00:00
Kostya Serebryany 15647b17f3 [sanitizer] change SizeClassAllocator64 to accept just one template parameter instead of 5. First, this will make the mangled names shorter. Second, this will make adding more parameters simpler. 
llvm-svn: 279771
 2016-08-25 20:23:08 +00:00
Kostya Serebryany bf6a04fde8 [sanitizers] introduce yet another API function: __sanitizer_install_malloc_and_free_hooks 
llvm-svn: 272943
 2016-06-16 20:06:06 +00:00
Adhemerval Zanella b0d5dd0199 [lsan] [aarch64] Add support for AArch64 
This patch add support for leak sanitizer for aarch64.  Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).

It also fixes the android build issue.

llvm-svn: 250898
 2015-10-21 13:08:06 +00:00
Evgeniy Stepanov 437615639f Revert "[lsan] [aarch64] Add support for AArch64" 
This reverts commit ea02fa45225c35613bfecab383fb526e24b74497 (r249337).

Reason: broken "ninja AsanUnitTests" on Android/AArch64.
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/20675/steps/build%20compiler-rt%20android%2Faarch64/logs/stdio

llvm-svn: 249730
 2015-10-08 20:08:30 +00:00
Adhemerval Zanella 5ea8dcb8cf [lsan] [aarch64] Add support for AArch64 
This patch add support for leak sanitizer for aarch64.  Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).

llvm-svn: 249337
 2015-10-05 19:16:09 +00:00
Vedant Kumar 59ba7b8cd1 [compiler-rt] Apply modernize-use-nullptr fixes in sanitizers 
- Trim spaces.
- Use nullptr in place of 0 for pointer variables.
- Use '!p' in place of 'p == 0' for null pointer checks.
- Add blank lines to separate function definitions.
- Add 'extern "C"' or 'namespace foo' comments after the appropriate
  closing brackets

This is a continuation of work from 409b7b82. The focus here is on the
various sanitizers (not sanitizer_common, as before).

Patch by Eugene Zelenko!

Differential Revision: http://reviews.llvm.org/D13225

llvm-svn: 248966
 2015-10-01 00:22:21 +00:00
Evgeniy Stepanov 10c9ea51a0 Fix compilation warning in compiler-rt. 
error: width of bit-field 'allocated' (8 bits) exceeds the width of
its type; value will be truncated to 1 bit [-Werror,-Wbitfield-width]

llvm-svn: 247840
 2015-09-16 19:54:36 +00:00
Mohit K. Bhakkad 36f974d76b [LSan] [MIPS] adding support of LSan for mips64/mips64el arch 
Patch by Sagar Thakur

Reviewers: petarj, earthdok, kcc.

Subscribers:  samsonov, dsanders, mohit.bhakkad, Anand.Takale, llvm-commits.

Differential Revision: http://reviews.llvm.org/D7013

llvm-svn: 229830
 2015-02-19 07:30:39 +00:00
Sergey Matveev 8cd909e749 [sanitizer] Rename InitIfLinkerInitialized to InitLinkerInitialized. 
llvm-svn: 224577
 2014-12-19 14:45:19 +00:00
Kostya Serebryany 20f3a52249 [sanitizer] add CombinedAllocator::InitIfLinkerInitialized and use it in lsan: speeds up lsan start-up time by ~25% 
llvm-svn: 224469
 2014-12-17 23:06:36 +00:00
Alexey Samsonov 6334f46db8 [Sanitizer] Introduce Allocator::may_return_null bool flag. 
Summary:
Turn "allocator_may_return_null" common flag into an
Allocator::may_return_null bool flag. We want to make sure
that common flags are immutable after initialization. There
are cases when we want to change this flag in the allocator
at runtime: e.g. in unit tests and during ASan activation
on Android.

Test Plan: regression test suite, real-life applications

Reviewers: kcc, eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6623

llvm-svn: 224148
 2014-12-12 20:07:35 +00:00
Alexey Samsonov 3741ab82ba Change StackDepot interface to use StackTrace more extensively 
llvm-svn: 220637
 2014-10-26 06:23:07 +00:00
Sergey Matveev 08347ca4fd [lsan] Implement the public allocator interface in standalone LSan. 
llvm-svn: 216459
 2014-08-26 14:28:28 +00:00
Kostya Serebryany 2b76278d38 [lsan] handle 'new T[0]' where T is a type with DTOR; fixes https://code.google.com/p/address-sanitizer/issues/detail?id=257 
llvm-svn: 198932
 2014-01-10 10:48:01 +00:00
Sergey Matveev 10548681c0 [lsan] Use real memset to clear memory in standalone LSan. 
Performance improvement. Also, the allocator was using CompactSizeClassMap for
no good reason, so I switched it to DefaultSizeClassMap.

llvm-svn: 195570
 2013-11-24 14:28:18 +00:00
Sergey Matveev 4e0215a71c Revert to C-style callbacks for iteration over allocator chunks. 
Also clean up LSan code, fix some comments and replace void* with uptr
to bring down the number of reinterpret_casts.

llvm-svn: 184700
 2013-06-24 08:34:50 +00:00
Sergey Matveev d28c03c03a [lsan] Increase allocator space; minor fixes. 
llvm-svn: 184554
 2013-06-21 15:10:20 +00:00
Sergey Matveev b94d5e2d1c [asan] Move lsan_disabled out of thread context. 
Fix for the case where disabler is used in pthread key destructor.

llvm-svn: 184553
 2013-06-21 14:51:52 +00:00
Sergey Matveev 978460c12c [lsan] Harmonized some naming inconsistencies. 
llvm-svn: 183748
 2013-06-11 15:26:20 +00:00
Sergey Matveev 1c4e214c32 [lsan] Put SANITIZER_INTERFACE_ATTRIBUTE on LSan interface functions. 
llvm-svn: 183429
 2013-06-06 18:40:55 +00:00
Sergey Matveev ecc4f5ba8e [lsan] Implement __lsan_ignore_object(). 
Leak annotation similar to HeapChecker's IgnoreObject().

llvm-svn: 183412
 2013-06-06 14:17:56 +00:00
Sergey Matveev 17ee1abfa7 [lsan] Add __lsan_disable() and __lsan_enable(). 
Objects allocated after a call to __lsan_disable() will be treated as
live memory. Also add a ScopedDisabler.

llvm-svn: 183099
 2013-06-03 11:21:34 +00:00
Sergey Matveev 69f11803ec [lsan] Use the fast version of GetBlockBegin for leak checking in LSan and ASan. 
llvm-svn: 182994
 2013-05-31 11:13:45 +00:00
Sergey Matveev 39e8a6d87e [lsan] Begin converting LSan tests to output tests. 
In this CL all old tests are removed and one LIT test is added.

llvm-svn: 182730
 2013-05-27 11:41:46 +00:00
Sergey Matveev bb12f840b5 [lsan] Ensure lsan is initialized when interceptors are called. 
Also remove unnecessary ifdefs.

llvm-svn: 182571
 2013-05-23 10:24:44 +00:00
Sergey Matveev 20ccf95f80 [lsan] Invoke leak detection with atexit(). 
Keeps it consistent between ASan and LSan.

llvm-svn: 182399
 2013-05-21 17:56:45 +00:00
Sergey Matveev bcfd838bcb [lsan] GetUserBegin() in LSan. 
Separate the notions of user-visible chunk and allocator chunk, to facilitate
ASan integration.

llvm-svn: 182256
 2013-05-20 13:08:23 +00:00
Sergey Matveev 866abfb3fe [lsan] Allocator for standalone LSan. 
This is the first in a series of CLs implementing LeakSanitizer.
http://clang.llvm.org/docs/LeakSanitizer.html

llvm-svn: 182245
 2013-05-20 10:54:00 +00:00