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.
...
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
008dba6aa0
asan: always pass allocator cache to Allocate()
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llvm-svn: 172193
2013-01-11 11:15:48 +00:00
b1c0dbe2c6
asan: faster quarantine
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llvm-svn: 172192
2013-01-11 11:03:35 +00:00
db0cf871d4
asan: Refactor asan memory quarantine.
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llvm-svn: 172183
2013-01-11 08:07:43 +00:00
8cc7b627b4
[asan] asan_allocator2: do less work under the quarantine lock; make the strcasecmp test more resistant to the contents of unaddressable memory
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llvm-svn: 172048
2013-01-10 09:25:16 +00:00
4a42cf69a6
[sanitizer] add statistics to the allocator; fix lint
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llvm-svn: 171161
2012-12-27 14:09:19 +00:00
6f604b5007
[asan/tsan] when unmapping a chunk of user memory, apply madvise(MADV_DONTNEED) to the corresponding chunk of shadow memory. Also update sanitizer_allocator64_testlib.cc
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llvm-svn: 171144
2012-12-27 07:37:24 +00:00
390cf94f88
[asan] asan_allocator2: do not align the requested size to the redzone size (saves a bit more memory)
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llvm-svn: 171111
2012-12-26 12:20:35 +00:00
35cc75876a
[asan] asan_allocator2: implement adaptive redzones. Now with asan_allocator2 allocations <= 48 bytes have 16 byte redzone, allocations of 48-96 bytes -- have 32 bytes redzone, etc (max redzone is 2048). If ASAN_OPTIONS=redzone=n is set, it changes the minimal redzone size
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llvm-svn: 171107
2012-12-26 10:41:24 +00:00
a11cd57a78
[asan] asan_allocator2: by default use the StackDepot to store the stack traces instead of storing them in the redzones
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llvm-svn: 171099
2012-12-26 06:30:02 +00:00
27ad15e165
[asan] asan_allocator2: store the user requested size in just 32 bits (larger sizes use metadata). This allows to put one more 32-bit field into the chunk header
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llvm-svn: 171089
2012-12-26 04:52:07 +00:00
eff9b4b9b1
[asan] add a test for right OOB with special large sizes. Fix this test in asan_allocator2. More test tweaking for allocator2
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llvm-svn: 171058
2012-12-25 09:40:20 +00:00
fe80f080ee
[asan] asan_allocator2 fix two asserts that happen on full chrome: a) memalign called with 0 size and large alignment and b) malloc called after TSD has been destructed
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llvm-svn: 170900
2012-12-21 14:54:46 +00:00
3cc719fdf9
[asan] asan_allocator2: better memory stats
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llvm-svn: 170888
2012-12-21 12:26:31 +00:00
3674c6b13b
[asan] add a flag alloc_dealloc_mismatch (off by default for now) which finds malloc/delete, new/free, new/delete[], etc mismatches
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llvm-svn: 170869
2012-12-21 08:53:59 +00:00
c0d8ca5537
[asan] asan_allocator2: implement memalign
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llvm-svn: 170697
2012-12-20 14:35:06 +00:00
9da3dd0415
[asan] add a flag poison_heap to allow better allocator benchmarking, implemenet malloc_stats() on Linux
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llvm-svn: 170685
2012-12-20 11:54:21 +00:00
ab8d33184d
[asan] asan_allocator2: make all remaining tests pass.
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llvm-svn: 170680
2012-12-20 08:53:41 +00:00
dcdeecb257
[asan] asan_allocator2: add mmap/munmap stats
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llvm-svn: 170548
2012-12-19 14:56:38 +00:00
479f05b276
[asan] asan_allocator2: improve FindHeapChunkByAddress to find memory chunks to the left of a given address. Almost all tests pass with the new allocator now, only 6 are left to fix.
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llvm-svn: 170511
2012-12-19 08:32:50 +00:00
d6aec5a8e0
[asan] asan_allocator2: implement malloc_usable_size and fix 32-bit
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llvm-svn: 170339
2012-12-17 14:57:25 +00:00
ec339f70d6
[asan] asan_allocator2: don't use TLS and fix calloc
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llvm-svn: 170329
2012-12-17 13:43:47 +00:00
1aae0e67fa
[asan] asan_alocator2: implement quarantine and Reallocate
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llvm-svn: 170315
2012-12-17 09:06:25 +00:00
c510015419
[asan] asan_alocator2: implement free() stacks and actually make malloc/free stacks work
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llvm-svn: 170310
2012-12-17 06:31:53 +00:00
025d64a1b9
[asan] more asan_allocator2 code: record the allocation stack trace, implement calloc/etc
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llvm-svn: 170193
2012-12-14 13:16:19 +00:00
7dfb168eb8
[asan] more asan_allocator2 code: actually un/poison shadow on malloc/free
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llvm-svn: 170190
2012-12-14 12:15:09 +00:00
e29883c10a
[sanitizer] add OnMap/OnUmap callbacks to the allocator interface
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llvm-svn: 169985
2012-12-12 14:32:18 +00:00
90a59fafc0
[asan] more code for asan_allocator2: basic Allocate/Deallocate code
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llvm-svn: 169864
2012-12-11 14:41:31 +00:00
5e2a7acdbe
[asan] more sceleton code for asan_allocator2
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llvm-svn: 169836
2012-12-11 09:02:36 +00:00
14282a91d5
[asan] introduce asan_allocator2.cc, which will have the replacement for asan allocator (now, just a bit of boilerplate)
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llvm-svn: 169733
2012-12-10 13:52:55 +00:00
Kostya Serebryany