69852a843c
[asan] add a feature to detect new-delete-size-mismatch (when used with -Xclang -fsized-deallocation). Not yet on Mac. Also, remove some unused code.
...
llvm-svn: 214296
2014-07-30 09:48:23 +00:00
d4b1b2068e
[asan] fix the alloctor code to not use opaque data structure, which was larger than needed. This was a leftover of the allocator1=>allocator2 migration; thanks Yuri Gribov for reminding
...
llvm-svn: 206280
2014-04-15 13:30:32 +00:00
796f6557bf
[asan] *experimental* implementation of invalid-pointer-pair detector (finds when two unrelated pointers are compared or subtracted). This implementation has both false positives and false negatives and is not tuned for performance. A bug report for a proper implementation will follow.
...
llvm-svn: 202389
2014-02-27 12:45:36 +00:00
756e1c1e4b
[asan] Reinitialize allocator quarantine on activation.
...
This is covered by AddressSanitizer.UAF_* tests in asan_test
with start_deactivated=1.
llvm-svn: 200696
2014-02-03 14:19:08 +00:00
db1ad12ae2
asan: fix atomic operations on ARM
...
implement correct atomic load/store for ARM
add test for atomic load/store
http://llvm-reviews.chandlerc.com/D2582
llvm-svn: 199802
2014-01-22 14:13:37 +00:00
e0e31c4a30
[ASan] Clarify that AsanThread objects are allocated only via mmap(). No functionality change.
...
llvm-svn: 195840
2013-11-27 13:22:21 +00:00
9ff4598225
[ASan] Do not rely on malloc context in allocator reports.
...
Invoke a fatal stack trace unwinder when ASan prints allocator-relevant
error reports (double-free, alloc-dealloc-mismatch, invalid-free).
Thus we'll be able to print complete stack trace even if allocation/free
stacks are not stored (malloc_context_size=0).
Based on the patch by Yuri Gribov!
llvm-svn: 194579
2013-11-13 14:46:58 +00:00
df6e6569c0
[ASan] Don't die with internal ASan error on large buffer overflows
...
Summary:
Out-of-bound access may touch not-yet allocated or already freed
and recycled from quarantine chunks. We should treat this situation as
a "free-range memory access" and avoid printing any data about that
irrelevant chunk (which may be inconsistent).
This should fix https://code.google.com/p/address-sanitizer/issues/detail?id=183
Reviewers: kcc
Reviewed By: kcc
CC: timurrrr, llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1893
llvm-svn: 192581
2013-10-14 11:13:54 +00:00
c947eb08b5
[ASan] Don't add SANITIZER_INTERFACE_ATTRIBUTE for internal ASan functions
...
llvm-svn: 190860
2013-09-17 09:42:03 +00:00
eee13914e2
Define SANITIZER_INTERFACE_ATTRIBUTE on Windows and fix all the places where SANITIZER_INTERFACE_ATTRIBUTE or SANITIZER_ATTRIBUTE_WEAK are used
...
llvm-svn: 188261
2013-08-13 11:42:45 +00:00
4e0a33c8be
[asan] move fake stack into a separate .h file; actually disable a failing test
...
llvm-svn: 179273
2013-04-11 11:39:19 +00:00
eef8bd4355
[asan] nuke the old unused allocator code
...
llvm-svn: 178758
2013-04-04 11:32:49 +00:00
6488b2b257
[asan] Switch to allocator2 on Android.
...
llvm-svn: 177263
2013-03-18 09:22:58 +00:00
f5d8c90f57
[asan] Revert r176255, r176264.
...
New allocator has 1.5x memory overhead of the old one.
llvm-svn: 176340
2013-03-01 09:33:05 +00:00
1cb95a17b8
[asan] Enable allocator2 on Android.
...
llvm-svn: 176255
2013-02-28 14:07:01 +00:00
0b805cc75c
[asan] Fix off-by-one in AddrIsAtRight.
...
llvm-svn: 174710
2013-02-08 12:59:42 +00:00
167f9e4395
[ASan] Switch Windows to allocator v2, also fixing some build errors
...
llvm-svn: 174707
2013-02-08 12:02:00 +00:00
659bca56a7
[ASan] Move functions using BitScan/clzl to sanitizer_common
...
llvm-svn: 174706
2013-02-08 11:45:04 +00:00
f444a49310
[ASan] Implement asan_mz_size(), asan_mz_force_lock() and asan_mz_force_unlock() for allocator2.
...
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
61761f182b
[asan] fix a crash in asan stats printing (initialize the allocator in __asan_init)
...
llvm-svn: 173676
2013-01-28 08:05:47 +00:00
d8b1f78296
[asan] enable asan_allocator2 by default on Linux. Will enable it on other platforms and remove the old one later, after additional testing. The new allocator is much faster and uses less memory
...
llvm-svn: 172531
2013-01-15 13:57:39 +00:00
0d46b2b95e
asan: fix the constant for new allocator cache
...
llvm-svn: 172526
2013-01-15 10:45:18 +00:00
9de857a0be
asan: enable allocator version 1 by default
...
llvm-svn: 172392
2013-01-14 09:03:24 +00:00
38092f628b
asan/tsan: fix memory allocator statistics
...
llvm-svn: 172390
2013-01-14 08:51:08 +00:00
0b7bce5ecf
asan: set ASAN_ALLOCATOR_VERSION=1 back
...
llvm-svn: 172184
2013-01-11 08:08:31 +00:00
db0cf871d4
asan: Refactor asan memory quarantine.
...
llvm-svn: 172183
2013-01-11 08:07:43 +00:00
4a42cf69a6
[sanitizer] add statistics to the allocator; fix lint
...
llvm-svn: 171161
2012-12-27 14:09:19 +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
...
llvm-svn: 170869
2012-12-21 08:53:59 +00:00
ec339f70d6
[asan] asan_allocator2: don't use TLS and fix calloc
...
llvm-svn: 170329
2012-12-17 13:43:47 +00:00
41ffe3db59
[asan] implement AsanChunkFifoList via IntrusiveList<AsanChunk>
...
llvm-svn: 170313
2012-12-17 07:54:29 +00:00
602a09fa52
[ASan] Fixed a compiler warning.
...
llvm-svn: 169972
2012-12-12 12:32:57 +00:00
4c97604415
ASan: fix lint problems introduced
...
llvm-svn: 169857
2012-12-11 12:24:41 +00:00
9b1d42a2a9
Hopefully fix the Windows build (2)
...
llvm-svn: 169856
2012-12-11 12:23:00 +00:00
aacd3d79b1
Hopefully fix the Windows build by not including intrin.h
...
llvm-svn: 169855
2012-12-11 12:03:06 +00:00
5e2a7acdbe
[asan] more sceleton code for asan_allocator2
...
llvm-svn: 169836
2012-12-11 09:02:36 +00:00
54af660d2c
[asan] fix the Windows build
...
llvm-svn: 169828
2012-12-11 07:27:59 +00:00
13bdbe698e
[asan] move FakeStack into a separate file
...
llvm-svn: 169734
2012-12-10 14:19:15 +00:00
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
8661465edd
[ASan] Move printing descriptions of heap addresses in error report from allocator internals to asan_report.cc.
...
llvm-svn: 164112
2012-09-18 07:38:10 +00:00
c3a8119a41
Whitespace/lint
...
llvm-svn: 162909
2012-08-30 14:22:21 +00:00
6b0d775229
[asan] some renaming before we move StackTrace into sanitizer_common
...
llvm-svn: 162747
2012-08-28 11:54:30 +00:00
4ce12349d6
[ASan] move some functions that describe addresses to asan_report.cc
...
llvm-svn: 161571
2012-08-09 09:06:52 +00:00
1d35d155fd
[asan] more renaming
...
llvm-svn: 157747
2012-05-31 15:02:07 +00:00
8d03204204
[asan] more renaming
...
llvm-svn: 157746
2012-05-31 14:35:53 +00:00
0be25d562c
Check that the FakeStack size is non-zero before looking into it.
...
Sometimes DescribeStackAddress is called before another thread's FakeStack is initialized, which could previously cause a check to fire.
llvm-svn: 151046
2012-02-21 08:45:41 +00:00
e725478e2f
AddressSanitizer: replace all "real_X" calls with "REAL(X)"
...
llvm-svn: 150073
2012-02-08 13:45:31 +00:00
209c514a1d
AddressSanitizer: add support for malloc_usable_size() function
...
llvm-svn: 148287
2012-01-17 06:39:10 +00:00
72fde3727e
[asan] make use-after-return mode more robust: allow to call instrumented functions while reporting an error
...
llvm-svn: 146231
2011-12-09 01:49:31 +00:00
9d1eee9e2a
fix asan-rt build on Mac. Patch by glider@google.com
...
llvm-svn: 145496
2011-11-30 17:33:13 +00:00
019b76f5fd
AddressSanitizer run-time library. Not yet integrated with the compiler-rt build system, but can be built using the old makefile. See details in README.txt
...
llvm-svn: 145463
2011-11-30 01:07:02 +00:00
Kostya Serebryany