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32 Commits

Author SHA1 Message Date
Kostya Serebryany b7062cec53 [asan] asan_allocator2: fix the memalign handling (clear the first word of allocated chunk in case there is an old memalign magic) 
llvm-svn: 172603
 2013-01-16 09:12:14 +00:00
Dmitry Vyukov f5fa4c8a77 asan: weaken memory ordering, it's expensive in current implementation 
llvm-svn: 172210
 2013-01-11 16:02:31 +00:00
Kostya Serebryany 9a7e8ddb21 [asan] fid asan_allocator2 build 
llvm-svn: 172194
 2013-01-11 11:27:42 +00:00
Dmitry Vyukov 008dba6aa0 asan: always pass allocator cache to Allocate() 
llvm-svn: 172193
 2013-01-11 11:15:48 +00:00
Dmitry Vyukov b1c0dbe2c6 asan: faster quarantine 
llvm-svn: 172192
 2013-01-11 11:03:35 +00:00
Dmitry Vyukov db0cf871d4 asan: Refactor asan memory quarantine. 
llvm-svn: 172183
 2013-01-11 08:07:43 +00:00
Kostya Serebryany 8cc7b627b4 [asan] asan_allocator2: do less work under the quarantine lock; make the strcasecmp test more resistant to the contents of unaddressable memory 
llvm-svn: 172048
 2013-01-10 09:25:16 +00:00
Kostya Serebryany 4a42cf69a6 [sanitizer] add statistics to the allocator; fix lint 
llvm-svn: 171161
 2012-12-27 14:09:19 +00:00
Kostya Serebryany 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 
llvm-svn: 171144
 2012-12-27 07:37:24 +00:00
Kostya Serebryany 390cf94f88 [asan] asan_allocator2: do not align the requested size to the redzone size (saves a bit more memory) 
llvm-svn: 171111
 2012-12-26 12:20:35 +00:00
Kostya Serebryany 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 
llvm-svn: 171107
 2012-12-26 10:41:24 +00:00
Kostya Serebryany a11cd57a78 [asan] asan_allocator2: by default use the StackDepot to store the stack traces instead of storing them in the redzones 
llvm-svn: 171099
 2012-12-26 06:30:02 +00:00
Kostya Serebryany 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 
llvm-svn: 171089
 2012-12-26 04:52:07 +00:00
Kostya Serebryany eff9b4b9b1 [asan] add a test for right OOB with special large sizes. Fix this test in asan_allocator2. More test tweaking for allocator2 
llvm-svn: 171058
 2012-12-25 09:40:20 +00:00
Kostya Serebryany 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 
llvm-svn: 170900
 2012-12-21 14:54:46 +00:00
Kostya Serebryany 3cc719fdf9 [asan] asan_allocator2: better memory stats 
llvm-svn: 170888
 2012-12-21 12:26:31 +00:00
Kostya Serebryany 3674c6b13b [asan] add a flag alloc_dealloc_mismatch (off by default for now) which finds malloc/delete, new/free, new/delete[], etc mismatches 
llvm-svn: 170869
 2012-12-21 08:53:59 +00:00
Kostya Serebryany c0d8ca5537 [asan] asan_allocator2: implement memalign 
llvm-svn: 170697
 2012-12-20 14:35:06 +00:00
Kostya Serebryany 9da3dd0415 [asan] add a flag poison_heap to allow better allocator benchmarking, implemenet malloc_stats() on Linux 
llvm-svn: 170685
 2012-12-20 11:54:21 +00:00
Kostya Serebryany ab8d33184d [asan] asan_allocator2: make all remaining tests pass. 
llvm-svn: 170680
 2012-12-20 08:53:41 +00:00
Kostya Serebryany dcdeecb257 [asan] asan_allocator2: add mmap/munmap stats 
llvm-svn: 170548
 2012-12-19 14:56:38 +00:00
Kostya Serebryany 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. 
llvm-svn: 170511
 2012-12-19 08:32:50 +00:00
Kostya Serebryany d6aec5a8e0 [asan] asan_allocator2: implement malloc_usable_size and fix 32-bit 
llvm-svn: 170339
 2012-12-17 14:57:25 +00:00
Kostya Serebryany ec339f70d6 [asan] asan_allocator2: don't use TLS and fix calloc 
llvm-svn: 170329
 2012-12-17 13:43:47 +00:00
Kostya Serebryany 1aae0e67fa [asan] asan_alocator2: implement quarantine and Reallocate 
llvm-svn: 170315
 2012-12-17 09:06:25 +00:00
Kostya Serebryany c510015419 [asan] asan_alocator2: implement free() stacks and actually make malloc/free stacks work 
llvm-svn: 170310
 2012-12-17 06:31:53 +00:00
Kostya Serebryany 025d64a1b9 [asan] more asan_allocator2 code: record the allocation stack trace, implement calloc/etc 
llvm-svn: 170193
 2012-12-14 13:16:19 +00:00
Kostya Serebryany 7dfb168eb8 [asan] more asan_allocator2 code: actually un/poison shadow on malloc/free 
llvm-svn: 170190
 2012-12-14 12:15:09 +00:00
Kostya Serebryany e29883c10a [sanitizer] add OnMap/OnUmap callbacks to the allocator interface 
llvm-svn: 169985
 2012-12-12 14:32:18 +00:00
Kostya Serebryany 90a59fafc0 [asan] more code for asan_allocator2: basic Allocate/Deallocate code 
llvm-svn: 169864
 2012-12-11 14:41:31 +00:00
Kostya Serebryany 5e2a7acdbe [asan] more sceleton code for asan_allocator2 
llvm-svn: 169836
 2012-12-11 09:02:36 +00:00
Kostya Serebryany 14282a91d5 [asan] introduce asan_allocator2.cc, which will have the replacement for asan allocator (now, just a bit of boilerplate) 
llvm-svn: 169733
 2012-12-10 13:52:55 +00:00