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100 Commits

Author SHA1 Message Date
Alexander Potapenko 33824c54f6 Make strcat() and strncat() more standard-compliant (check for invalid parameters even if zero bytes is copied, more accurate overlap check) 
Fix the tests that were relying on the incorrect behavior.

llvm-svn: 161167
 2012-08-02 10:25:46 +00:00
Alexey Samsonov cc7ea4269a [ASan] cleanup interceptors code - prefer ASAN_INTERCEPT_FUNCTION_NAME macro to _WIN32, __APPLE__ etc. 
llvm-svn: 161109
 2012-08-01 11:17:00 +00:00
Kostya Serebryany 4c38790f70 [asan] ensure that asan_init is called in str[n]cmp. Bug found by Nick Kralevich (thanks) 
llvm-svn: 160853
 2012-07-27 07:09:49 +00:00
Alexander Potapenko 7f3e84c9fd For wild addresses in the shadow or shadow gap areas print an error message instead of crashing on a check. 
Add AddressSanitizer.MemsetWildAddressTest that makes sure a proper error message is printed.

llvm-svn: 160620
 2012-07-23 08:22:27 +00:00
Alexey Samsonov 34efb8e9b9 [ASan] Use common flags parsing machinery. 
llvm-svn: 159933
 2012-07-09 14:36:04 +00:00
Alexey Samsonov 70386aaffa [ASan] cleanup: trailing semicolons, trailing colons in enums 
llvm-svn: 159338
 2012-06-28 08:27:24 +00:00
Alexey Samsonov 156958dd0c [Sanitizer] move all the rest re-implementations of libc functions from ASan runtime to common sanitizer runtime 
llvm-svn: 158519
 2012-06-15 13:09:52 +00:00
Alexey Samsonov 3efd6fc26c [Sanitizer] Use DEFINE_REAL macro in TSan runtime to call libc implementations of functions. Move strchr to sanitizer_libc. 
llvm-svn: 158517
 2012-06-15 12:24:07 +00:00
Alexey Samsonov 96ef49a71e [Sanitizer] Move internal_memcmp to common sanitizer libc 
llvm-svn: 158450
 2012-06-14 14:04:54 +00:00
Alexey Samsonov 59036d2c06 [Sanitizer] add internal_memset and internal_strrchr to sanitizer_common/ 
llvm-svn: 158202
 2012-06-08 14:11:12 +00:00
Alexey Samsonov 99d58521c5 [ASan] allow calls to memmove during rtl initialization 
llvm-svn: 158201
 2012-06-08 14:04:04 +00:00
Alexey Samsonov f26b842ca8 [ASan] add interceptor for strncat 
llvm-svn: 158198
 2012-06-08 13:27:46 +00:00
Kostya Serebryany 79437fe376 [asan] make tid u32 instead of int 
llvm-svn: 158074
 2012-06-06 15:06:58 +00:00
Alexey Samsonov 51ae983718 [Sanitizer]: Introduce a common internal printf function. For now, also use tool-specific wrappers TsanPrintf (its output is controlled by TSan flags) and AsanPrintf (which copies its results to the ASan-private buffer). Supported formats: %[z]{d,u,x}, %s, %p. Re-write all format strings in TSan according to this format (this should have no effect on 64-bit platforms). 
llvm-svn: 158065
 2012-06-06 13:11:29 +00:00
Alexey Samsonov ee07290628 [Sanitizer] Move more functions/constants to sanitizer_common. 
llvm-svn: 158056
 2012-06-06 09:26:25 +00:00
Alexey Samsonov 8602c65719 [Sanitizer] remove using namespace __sanitizer lines 
llvm-svn: 157999
 2012-06-05 14:05:09 +00:00
Alexey Samsonov 7ac77d6b29 [Sanitizer] add sanitizer_posix.cc. Move more various functions into sanitizer_libc: sscanf, munmap, memchr 
llvm-svn: 157994
 2012-06-05 09:49:25 +00:00
Alexey Samsonov 485d3dc363 Remove file-type tags for .cc files in ASan run-time library 
llvm-svn: 157927
 2012-06-04 13:50:10 +00:00
Alexey Samsonov 90f9630c80 [Sanitizer]: move internal_strcmp to sanitizer_common 
llvm-svn: 157926
 2012-06-04 13:27:49 +00:00
Alexey Samsonov 06f2cd38c1 [Sanitizer] Move internal_strncpy to sanitizer_libc (and make its behavior conforming to manual) 
llvm-svn: 157922
 2012-06-04 10:30:16 +00:00
Kostya Serebryany 1d35d155fd [asan] more renaming 
llvm-svn: 157747
 2012-05-31 15:02:07 +00:00
Kostya Serebryany 8d03204204 [asan] more renaming 
llvm-svn: 157746
 2012-05-31 14:35:53 +00:00
Meador Inge 6fef6e6466 Adding back a right parenthesis that was dropped in r157388. 
llvm-svn: 157406
 2012-05-24 18:16:39 +00:00
Dmitry Vyukov 7fb7330469 asan/tsan: weak interceptors 
The idea isthat asan/tsan can survive if user intercepts the same functions. At the same time user has an ability to call back into asan/tsan runtime. See the following tests for examples:
asan/output_tests/interception_failure_test-linux.cc
asan/output_tests/interception_test-linux.cc
asan/output_tests/interception_malloc_test-linux.cc

llvm-svn: 157388
 2012-05-24 13:54:31 +00:00
Alexander Potapenko ec316e5940 Partially revert r154390 (http://llvm.org/viewvc/llvm-project?view=rev&revision=154390) 
Until we work out the solution for http://code.google.com/p/address-sanitizer/issues/detail?id=65 we'd better not allow
the clients to override AddressSanitizer's signal handler.

The second part of r154390 (removing the sighandler-related tests) is not reverted, because those tests were broken
and didn't test anything.

llvm-svn: 154803
 2012-04-16 08:33:01 +00:00
Alexander Potapenko bc42d44112 Change the way ASan interacts with custom signal handlers. 
From now on we allow the clients to override signal handlers set by ASan, but print a warning in such a case.

Remove the tests for signal() and sigaction(), because they made little sense even without this change.

llvm-svn: 154390
 2012-04-10 11:00:26 +00:00
Alexey Samsonov 6a19d5d209 [ASan] move replacements for new/delete to separate file 
llvm-svn: 154167
 2012-04-06 08:21:08 +00:00
Alexey Samsonov 61a331d594 [ASan] use correct C-version of strchr on Windows 
llvm-svn: 154006
 2012-04-04 11:36:47 +00:00
Alexander Potapenko c6eb6a8287 Add internal_memset and replace the uses of REAL(memset) with it where the performance allows. 
llvm-svn: 153641
 2012-03-29 12:20:47 +00:00
Alexey Samsonov b33c87bbb9 [ASan] interceptors for atoi/atol/atoll 
llvm-svn: 153637
 2012-03-29 08:04:35 +00:00
Alexey Samsonov 0a4f8dc0cb [ASan] add interceptor for strtol 
llvm-svn: 153444
 2012-03-26 16:42:22 +00:00
Alexey Samsonov 1fd5dbc140 [ASan] use macro to define if we should intercept signal/sigaction 
llvm-svn: 153430
 2012-03-26 09:07:29 +00:00
Alexey Samsonov f71cb8d307 [ASan] revert r153378 
llvm-svn: 153379
 2012-03-24 10:12:58 +00:00
Alexey Samsonov 01da1055d3 [ASan] simplify ASAN_INTERCEPT_* definitions 
llvm-svn: 153378
 2012-03-24 09:47:56 +00:00
Alexey Samsonov 78481835ae [ASan] use ASAN_INTERCEPT_STRNLEN instead of defined(__APPLE__) 
llvm-svn: 153377
 2012-03-24 09:10:50 +00:00
Alexey Samsonov c8efe828a9 [ASan] add interceptor for strtoll 
llvm-svn: 153376
 2012-03-24 08:39:14 +00:00
Alexey Samsonov b8a047261c [asan] one more try to remove pthread.h from asan_interceptors.cc 
llvm-svn: 153188
 2012-03-21 15:02:39 +00:00
Alexey Samsonov 9113f3e000 [asan] add missing declarations from string.h and remove this header 
llvm-svn: 153187
 2012-03-21 14:33:15 +00:00
Alexey Samsonov abbcccc187 [asan] use extern declaraions of libc functions on Win and on Mac 
llvm-svn: 153186
 2012-03-21 14:22:28 +00:00
Alexey Samsonov ef50dfd6aa [asan]: remove signal.h system header from interceptors 
llvm-svn: 153183
 2012-03-21 13:44:39 +00:00
Alexey Samsonov 9ce04b0c36 [asan] merge mac-specific interceptors into one function 
llvm-svn: 153180
 2012-03-21 12:42:00 +00:00
Alexey Samsonov 5f7048b396 [asan]: remove asan_mac.h 
llvm-svn: 153179
 2012-03-21 12:29:54 +00:00
Alexey Samsonov 1d4145380e [asan]: start removing os-specific asan_mac.h - move inclusion of mac system header to asan_mac.cc 
llvm-svn: 153178
 2012-03-21 12:03:44 +00:00
Alexander Potapenko 1159250518 s/Printf/Report for libc interceptors (need this to debug the potential double interception) 
llvm-svn: 153175
 2012-03-21 09:33:05 +00:00
Alexey Samsonov 1479418407 [ASan] get rid of setjmp.h header in interceptors 
llvm-svn: 153085
 2012-03-20 11:40:09 +00:00
Alexey Samsonov c298b3674f [ASan]: remove GetMacosVersion from asan_mac.h header 
llvm-svn: 153084
 2012-03-20 10:54:40 +00:00
Kostya Serebryany af32a84b24 [asan] added an assert in InitializeAsanInterceptors (it should be run just once) 
llvm-svn: 152945
 2012-03-16 21:02:13 +00:00
Kostya Serebryany 54a3cac5c5 [asan] fix unwinding inside libc intercepors (asan issue #46) 
llvm-svn: 152768
 2012-03-15 01:36:00 +00:00
Kostya Serebryany fd2037162e [asan] performance optimization: make sure the check for poisoned shadow inside inteceptors is inlined 
llvm-svn: 152767
 2012-03-15 01:18:06 +00:00
Timur Iskhodzhanov cf526ff278 [ASan/Win] Fix wrong memmove,memcpy,memset interceptor definitons 
llvm-svn: 152622
 2012-03-13 10:42:34 +00:00