b94d5e2d1c
[asan] Move lsan_disabled out of thread context.
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Fix for the case where disabler is used in pthread key destructor.
llvm-svn: 184553
2013-06-21 14:51:52 +00:00
5e6b9eccce
[asan] Define LSan annotations as no-ops if leak detection is not supported.
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llvm-svn: 184422
2013-06-20 13:39:42 +00:00
686c229b03
[ASan] Clear allocation magic value before recycling the chunk. This led to spurious crashes in LSan when it walked through reused chunks. Don't know how to create not-brittle test case for this.
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llvm-svn: 184404
2013-06-20 08:13:06 +00:00
978460c12c
[lsan] Harmonized some naming inconsistencies.
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llvm-svn: 183748
2013-06-11 15:26:20 +00:00
02062becea
[asan] fix Android build (mark asan_malloc_usable_size as an interface function)
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llvm-svn: 183651
2013-06-10 13:28:33 +00:00
e71982d589
[asan] fix the bug with memalign and malloc_usable_size ( http://code.google.com/p/address-sanitizer/issues/detail?id=193 ); also fix lint
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llvm-svn: 183647
2013-06-10 10:46:27 +00:00
1c4e214c32
[lsan] Put SANITIZER_INTERFACE_ATTRIBUTE on LSan interface functions.
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llvm-svn: 183429
2013-06-06 18:40:55 +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
7a75e16c27
[ASan] One more fix for realloc: check that reallocated chunk is valid before calling memcpy
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llvm-svn: 183390
2013-06-06 08:25:31 +00:00
8f5138a23f
Call __asan_free_hook() before marking the chunk quarantinned
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Summary:
With this change, the user may safely call __asan_get_ownership()
from malloc/free hooks and assume it would return "true". If there is a
realloc/free race, free hook might be called twice, but I think it's acceptable,
as it's a data race and would later be reported anyway.
This change also fixes a bug when failing realloc incorrectly marked the
original memory as "quarantinned".
Reviewers: timurrrr, kcc, samsonov
Reviewed By: samsonov
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D913
llvm-svn: 183220
2013-06-04 12:19:31 +00:00
b256ac7584
[asan] Fix invalid thread registry access when checking if LSan is disabled.
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llvm-svn: 183218
2013-06-04 10:39:24 +00:00
17ee1abfa7
[lsan] Add __lsan_disable() and __lsan_enable().
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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
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
39e8a6d87e
[lsan] Begin converting LSan tests to output tests.
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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
49eb5700e2
Revert r182465 and add lsan-common library to makefile-based build
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llvm-svn: 182470
2013-05-22 13:20:37 +00:00
155dd46e04
[ASan] Temporary remove leak checking from ASan, while we don't have makefile-based build for LSan
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llvm-svn: 182465
2013-05-22 12:44:57 +00:00
7159b2a382
[asan] LSan hooks in asan_allocator2.cc
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llvm-svn: 182379
2013-05-21 13:46:41 +00:00
67c918a424
Fix realloc'ing freed/invalid pointers
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See https://code.google.com/p/address-sanitizer/issues/detail?id=187 for the details
llvm-svn: 182255
2013-05-20 13:05:58 +00:00
6a6c5b6dee
[asan] Modify ASan metadata atomically.
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We need this to avoid races when ASan and LSan are used together.
llvm-svn: 182252
2013-05-20 11:25:18 +00:00
667cae7b69
[ASan] Remove an unused ChunkBase field
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Also fix wrong alignment maths and an outdated comment
llvm-svn: 182238
2013-05-20 08:20:17 +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
836a4f3643
Replace CHECK(a == b); with CHECK_EQ(a, b); throughout asan_allocator2.cc
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llvm-svn: 182198
2013-05-18 18:27:33 +00:00
2b42716213
[asan] fix powerpc build and one test; fix lint
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llvm-svn: 181881
2013-05-15 12:36:29 +00:00
0c8ed9ce44
[asan] Common flags in ASan.
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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
eef8bd4355
[asan] nuke the old unused allocator code
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llvm-svn: 178758
2013-04-04 11:32:49 +00:00
13b07733b1
[asan] fill first 4K of malloc-ed memory with garbage, implement flags max_malloc_fill_size and malloc_fill_byte
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llvm-svn: 178757
2013-04-04 11:17:14 +00:00
a88c60b085
[ASan] Speed-up initialization-order checking: create and use fast versions of PoisonShadow functions, store copies of __asan_global descriptors in a vector instead of list of pointers. This gives 3x speedup on both benchmarks and real binaries with lots of globals.
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llvm-svn: 178239
2013-03-28 15:42:43 +00:00
fb74020cea
Revert 177745 as it was incorrect
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llvm-svn: 177746
2013-03-22 18:16:57 +00:00
e117eef77f
Band-aid fix for the Windows build caused by r177710. Long-term, atomic_compare_exchange_strong should be a template on Windows too...
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llvm-svn: 177745
2013-03-22 18:05:28 +00:00
a5eb3cb721
[ASan] Fix an error on invalid deallocation in ASan allocator. When ASan checks if memory freed by user was indeed previously allocated, it first does an atomic write to presumed location of chunk header. This is wrong, as if the free is invalid, we may overwrite some valuable data (like other fields of the chunk header). Fix this by using atomic_compare_exchange instead.
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llvm-svn: 177710
2013-03-22 07:40:34 +00:00
54afba8b62
[ASan] Switch ASan to generic ThreadRegistry from sanitizer_common. Delete ASan-specific AsanThreadRegistry.
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llvm-svn: 177634
2013-03-21 11:23:41 +00:00
920b3b9a0c
[ASan] Move malloc stats collection away from AsanThreadRegistry class.
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llvm-svn: 177508
2013-03-20 10:11:24 +00:00
cf025cb2e6
[ASan] Move GetCurrentThread/SetCurrentThread from AsanThreadRegistry class into plain functions: they don't actually use registry
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llvm-svn: 177501
2013-03-20 09:23:28 +00:00
67b1478914
[asan] use 4Tb of address space for the asan allocator instead of 1Tb. This increases the memory available for a single size class from 16Gb to 64Gb. The total VM footprint becomes 20Tb
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llvm-svn: 176857
2013-03-12 09:04:49 +00:00
8ee2a5adc7
[asan] if calloc returns a freshly-mmaped memory, don't clear it with memset. Speeds up calloc-intensive code
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llvm-svn: 176185
2013-02-27 13:38:19 +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
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
1bc7298c44
[asan] Fix nonsensical reports of partial right OOB.
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In case of partial right OOB, ASan was reporting
X is located 0 bytes to the right of [A, B)
where X was actually inside [A, B).
With this change, ASan will report B as the error address in such case.
llvm-svn: 174373
2013-02-05 14:32:03 +00:00
a0c0da8f51
[ASan] Split ASan interface header into private and public parts. Add a test that makes sure users can include interface header
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llvm-svn: 174058
2013-01-31 13:46:14 +00:00
9aa2e4f5c4
[ASan] fix deallocation hook in allocator2: according to specification, dealloc hook should be called before deallocating memory
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llvm-svn: 173778
2013-01-29 08:19:11 +00:00
615b86cf0a
[ASan] Do allocate memory even for zero-size allocation requests. Explain why we have to do this in comments.
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llvm-svn: 173776
2013-01-29 07:51:34 +00:00
7eda134fa7
[ASan] fix a bug in allocator-v2 which could lead to SEGV on realloc(malloc(0), 4)
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llvm-svn: 173681
2013-01-28 11:24:13 +00:00
61761f182b
[asan] fix a crash in asan stats printing (initialize the allocator in __asan_init)
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llvm-svn: 173676
2013-01-28 08:05:47 +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
8f267137c2
[asan] initialize kHighMemEnd at startup (instead of at compile time) to simplify further changes for various address space layouts. Fix asan_allocator2 for PowerPC (tested on 44-bit address space)
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llvm-svn: 173260
2013-01-23 13:27:43 +00:00
769af07372
[ASan] fix __asan_get_ownership(p) and __asan_get_allocated_size(p) for the p = malloc(0)
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llvm-svn: 172717
2013-01-17 13:25:17 +00:00
b7062cec53
[asan] asan_allocator2: fix the memalign handling (clear the first word of allocated chunk in case there is an old memalign magic)
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llvm-svn: 172603
2013-01-16 09:12:14 +00:00
f5fa4c8a77
asan: weaken memory ordering, it's expensive in current implementation
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llvm-svn: 172210
2013-01-11 16:02:31 +00:00
9a7e8ddb21
[asan] fid asan_allocator2 build
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llvm-svn: 172194
2013-01-11 11:27:42 +00:00
Sergey Matveev