5864ac39ee
tsan: do not use 64-bit atomics in allocator code
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64-bit atomics make porting of asan to 32-bits platforms problematic.
llvm-svn: 209744
2014-05-28 15:22:12 +00:00
7fe86589f1
[sanitizer] revert r200197: the buggy kernel ( https://bugzilla.kernel.org/show_bug.cgi?id=67651 ) is almost unusable with asan even with this workaround (too slow), so this workaround makes no sense. The asan/msan bootstrap bot was changed to use a non-buggy kernel
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llvm-svn: 200217
2014-01-27 13:05:09 +00:00
0a5049b780
[sanitizer] increase the mmap granularity in sanitizer allocator from 2^16 to 2^18. This is a partial workaround for the fresh Kernel bug https://bugzilla.kernel.org/show_bug.cgi?id=67651
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llvm-svn: 200197
2014-01-27 07:35:32 +00:00
ccfc0481f1
[sanitizer] Implement TwoLevelByteMap and use it for the internal allocator on 64-bit.
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Summary:
Implement TwoLevelByteMap and use it for the internal allocator on 64-bit.
This reduces bss on 64-bit by ~8Mb because we don't use FlatByteMap on 64-bits any more.
Dmitry, please check my understanding of atomics.
Reviewers: dvyukov
Reviewed By: dvyukov
CC: samsonov, llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2259
llvm-svn: 195637
2013-11-25 11:33:41 +00:00
634a75b63e
[sanitizer] Do not clear memory which comes from secondary allocator.
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Secondary allocator is mmap-based, so the memory is already zeroed.
llvm-svn: 195571
2013-11-24 14:45:38 +00:00
a2fde9484f
[sanitizer] use 16-byte aligned bzero in performance critical place (mostly for lsan)
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llvm-svn: 195549
2013-11-23 12:49:19 +00:00
8d27910d7d
Rename SpinMutex::AssertHeld to CheckLocked, for consistency with BlockingMutex.
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llvm-svn: 193447
2013-10-25 23:03:21 +00:00
f04ae33106
[asan] Fix a deadlock between asan's allocator and lsan
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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
ada5a7b7ef
[sanitizer] make the allocator crash instead of returning 0 on huge size (controlled by the allocator_may_return_null flag)
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llvm-svn: 190127
2013-09-06 09:25:11 +00:00
87bf47894c
tsan: better diagnostics for invalid addresses passed to free()
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llvm-svn: 187980
2013-08-08 13:47:50 +00:00
b42ea7ef21
Lint fixes
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llvm-svn: 187726
2013-08-05 13:20:39 +00:00
44b77c26e4
[msan] Allocator statistics interface and malloc hooks.
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llvm-svn: 187653
2013-08-02 14:26:58 +00:00
4e0215a71c
Revert to C-style callbacks for iteration over allocator chunks.
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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
ecc4f5ba8e
[lsan] Implement __lsan_ignore_object().
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Leak annotation similar to HeapChecker's IgnoreObject().
llvm-svn: 183412
2013-06-06 14:17:56 +00:00
69f11803ec
[lsan] Use the fast version of GetBlockBegin for leak checking in LSan and ASan.
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llvm-svn: 182994
2013-05-31 11:13:45 +00:00
831a1d7cec
[sanitizer] introduce LargeMmapAllocator::GetBlockBeginFastSingleThreaded, required for LeakSanitizer to work faster. Also fix lint.
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llvm-svn: 182917
2013-05-30 08:43:30 +00:00
cc61eefd4b
Fix MSVC W3 compiler warnings
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llvm-svn: 182857
2013-05-29 14:11:44 +00:00
3469375e4f
[sanitizer] factor out ByteMap from SizeClassAllocator32 so that it can be later replaced with a more memory-efficient implementation on 64-bit.
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llvm-svn: 182234
2013-05-20 07:29:21 +00:00
21cbaee6a9
[sanitizer] fix gcc build
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llvm-svn: 182006
2013-05-16 13:24:31 +00:00
efb6172cb3
[sanitizer] Fix the region overflow condition in SanitizerAllocator64::PopulateFreeList().
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llvm-svn: 182002
2013-05-16 12:58:34 +00:00
19eb46f4ca
[sanitizer] fix a gcc warning
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llvm-svn: 181992
2013-05-16 08:03:26 +00:00
a551aaa944
[sanitizer] fix the GetBlockBegin overflow bug while preserving the performance optimization (use 32-bit division when possible). Improve the benchmarks that checks for performance of GetBlockBegin/GetMetaData
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llvm-svn: 181989
2013-05-16 07:11:16 +00:00
e6459977b8
[sanitizer] Fix boundary condition in LargeMmapAllocator::GetBlockBegin. Patch by Sergey Matveev
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llvm-svn: 179007
2013-04-08 08:43:22 +00:00
31056968fc
asan/tsan: reduce per-thread memory allocator caches
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256 blocks (which is 512 in reallity) seems to be too big cache,
reducing the size reduces memory consumption but does not degrade performance.
llvm-svn: 177502
2013-03-20 09:26:46 +00:00
b941a2fca4
[asan] Add ForEachChunk() to sanitizer allocators. Patch by Sergey Matveev
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llvm-svn: 177147
2013-03-15 11:39:41 +00:00
d332d42372
[asan] remove one redundant malloc stress test, unify the usage of ASAN_LOW_MEMORY macro in tests, slightly reduce test memory usage (all to make 32-bit runs consume less RAM)
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llvm-svn: 177069
2013-03-14 13:16:09 +00:00
138b155042
[sanitizer] use fewer size classes in the allocator to reduce the memory footprint. There is no all-size-fits-all constant here, but this change is positive or neutral on several large apps I've tested
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llvm-svn: 176855
2013-03-12 08:44:40 +00:00
ba56c8d4f9
[sanitizer] simplify the allocator's SizeClassMap: do not require an extra template parameter, instead compute it in flight. No functionality change
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llvm-svn: 176853
2013-03-12 07:01:27 +00:00
0f5c20b417
[sanitizer] make SizeClassAllocator64::GetBlockBegin more bullet proof (by Sergey Matveev)
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llvm-svn: 176799
2013-03-11 09:43:12 +00:00
66c26e5e96
[sanitizers] Fix check failure on dealloc from new thread
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Summary:
Adds a test for this case, which was reduced from a chromium build of
WebKit's DumpRenderTree.
Reviewers: eugenis
CC: glider
Differential Revision: http://llvm-reviews.chandlerc.com/D495
llvm-svn: 176552
2013-03-06 14:54:08 +00:00
323771b3f1
[sanitizer] Fix check failure in SizeClassMap::Print.
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llvm-svn: 176338
2013-03-01 08:49:14 +00:00
459df6f167
[asan] a bit stricter lint for CHECK vs CHECK_XX (these CHECK_XX really help debugging!)
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llvm-svn: 176085
2013-02-26 12:59:06 +00:00
167f9e4395
[ASan] Switch Windows to allocator v2, also fixing some build errors
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llvm-svn: 174707
2013-02-08 12:02:00 +00:00
39675fe9c8
[sanitizer] always allocate 16-byte aligned chunks of memory
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llvm-svn: 174617
2013-02-07 15:04:06 +00:00
109aa04ea9
[sanitizer_common] Fix lint warnings.
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llvm-svn: 174616
2013-02-07 14:58:04 +00:00
07c740e213
[ASan] Fix a compilation warning.
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llvm-svn: 174604
2013-02-07 12:00:40 +00:00
f444a49310
[ASan] Implement asan_mz_size(), asan_mz_force_lock() and asan_mz_force_unlock() for allocator2.
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Switch to allocator2 on Darwin.
llvm-svn: 174603
2013-02-07 11:40:03 +00:00
7981ea8baa
asan/tsan: fix compilation errors/bugs on Windows where long is 32-bit even in 64-bit mode
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llvm-svn: 174312
2013-02-04 08:07:45 +00:00
6cff9deb16
Use the correct order of NOINLINE vs ret type to fix Windows build
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llvm-svn: 173694
2013-01-28 17:29:50 +00:00
fa79cd65e2
[sanitizer] fix calloc overflow in asan/tsan/msan
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llvm-svn: 173441
2013-01-25 11:46:22 +00:00
6e406cda4b
tsan: implement malloc stats querying
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llvm-svn: 173332
2013-01-24 09:08:03 +00:00
7206a145dd
[sanitizer] increase the minimal mmap size in allocator to 2^16; fix the asan Mac build
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llvm-svn: 173261
2013-01-23 14:07:17 +00:00
45a698eb58
asan: faster thead-local cache for memory allocator
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llvm-svn: 172521
2013-01-15 09:02:20 +00:00
4ebb4e5565
asan/tsan: mmap shadow memory before allocating memory (otherwise other threads can access non yet allocated shadow)
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llvm-svn: 172395
2013-01-14 10:49:11 +00:00
38092f628b
asan/tsan: fix memory allocator statistics
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llvm-svn: 172390
2013-01-14 08:51:08 +00:00
795eb90db5
asan/tsan: faster memory allocator
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1. Increase size classes from 32k to 128k
2. Use lock-free stack in central cache
3. Use blocking mutex when allocate new memory with mmap
llvm-svn: 172388
2013-01-14 08:23:34 +00:00
f22982bf0a
asan/tsan: move blocking mutex from asan to sanitizer_common
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llvm-svn: 172380
2013-01-14 07:51:39 +00:00
ecd73d36d4
asan/tsan: faster memory allocator
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replace lists with arrays
llvm-svn: 172217
2013-01-11 16:41:19 +00:00
008dba6aa0
asan: always pass allocator cache to Allocate()
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llvm-svn: 172193
2013-01-11 11:15:48 +00:00
fdcfbda750
[sanitizer] better statistics for the large allocator
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llvm-svn: 172069
2013-01-10 13:38:38 +00:00
Dmitry Vyukov