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
cc7ea4269a
[ASan] cleanup interceptors code - prefer ASAN_INTERCEPT_FUNCTION_NAME macro to _WIN32, __APPLE__ etc.
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llvm-svn: 161109
2012-08-01 11:17:00 +00:00
4c38790f70
[asan] ensure that asan_init is called in str[n]cmp. Bug found by Nick Kralevich (thanks)
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llvm-svn: 160853
2012-07-27 07:09:49 +00:00
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
34efb8e9b9
[ASan] Use common flags parsing machinery.
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llvm-svn: 159933
2012-07-09 14:36:04 +00:00
70386aaffa
[ASan] cleanup: trailing semicolons, trailing colons in enums
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llvm-svn: 159338
2012-06-28 08:27:24 +00:00
156958dd0c
[Sanitizer] move all the rest re-implementations of libc functions from ASan runtime to common sanitizer runtime
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llvm-svn: 158519
2012-06-15 13:09:52 +00:00
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
96ef49a71e
[Sanitizer] Move internal_memcmp to common sanitizer libc
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llvm-svn: 158450
2012-06-14 14:04:54 +00:00
59036d2c06
[Sanitizer] add internal_memset and internal_strrchr to sanitizer_common/
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llvm-svn: 158202
2012-06-08 14:11:12 +00:00
99d58521c5
[ASan] allow calls to memmove during rtl initialization
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llvm-svn: 158201
2012-06-08 14:04:04 +00:00
f26b842ca8
[ASan] add interceptor for strncat
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llvm-svn: 158198
2012-06-08 13:27:46 +00:00
79437fe376
[asan] make tid u32 instead of int
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llvm-svn: 158074
2012-06-06 15:06:58 +00:00
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).
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llvm-svn: 158065
2012-06-06 13:11:29 +00:00
ee07290628
[Sanitizer] Move more functions/constants to sanitizer_common.
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llvm-svn: 158056
2012-06-06 09:26:25 +00:00
8602c65719
[Sanitizer] remove using namespace __sanitizer lines
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llvm-svn: 157999
2012-06-05 14:05:09 +00:00
7ac77d6b29
[Sanitizer] add sanitizer_posix.cc. Move more various functions into sanitizer_libc: sscanf, munmap, memchr
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llvm-svn: 157994
2012-06-05 09:49:25 +00:00
485d3dc363
Remove file-type tags for .cc files in ASan run-time library
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llvm-svn: 157927
2012-06-04 13:50:10 +00:00
90f9630c80
[Sanitizer]: move internal_strcmp to sanitizer_common
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llvm-svn: 157926
2012-06-04 13:27:49 +00:00
06f2cd38c1
[Sanitizer] Move internal_strncpy to sanitizer_libc (and make its behavior conforming to manual)
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llvm-svn: 157922
2012-06-04 10:30:16 +00:00
1d35d155fd
[asan] more renaming
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llvm-svn: 157747
2012-05-31 15:02:07 +00:00
8d03204204
[asan] more renaming
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llvm-svn: 157746
2012-05-31 14:35:53 +00:00
6fef6e6466
Adding back a right parenthesis that was dropped in r157388.
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llvm-svn: 157406
2012-05-24 18:16:39 +00:00
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
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
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
6a19d5d209
[ASan] move replacements for new/delete to separate file
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llvm-svn: 154167
2012-04-06 08:21:08 +00:00
61a331d594
[ASan] use correct C-version of strchr on Windows
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llvm-svn: 154006
2012-04-04 11:36:47 +00:00
c6eb6a8287
Add internal_memset and replace the uses of REAL(memset) with it where the performance allows.
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llvm-svn: 153641
2012-03-29 12:20:47 +00:00
b33c87bbb9
[ASan] interceptors for atoi/atol/atoll
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llvm-svn: 153637
2012-03-29 08:04:35 +00:00
0a4f8dc0cb
[ASan] add interceptor for strtol
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llvm-svn: 153444
2012-03-26 16:42:22 +00:00
1fd5dbc140
[ASan] use macro to define if we should intercept signal/sigaction
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llvm-svn: 153430
2012-03-26 09:07:29 +00:00
f71cb8d307
[ASan] revert r153378
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llvm-svn: 153379
2012-03-24 10:12:58 +00:00
01da1055d3
[ASan] simplify ASAN_INTERCEPT_* definitions
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llvm-svn: 153378
2012-03-24 09:47:56 +00:00
78481835ae
[ASan] use ASAN_INTERCEPT_STRNLEN instead of defined(__APPLE__)
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llvm-svn: 153377
2012-03-24 09:10:50 +00:00
c8efe828a9
[ASan] add interceptor for strtoll
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llvm-svn: 153376
2012-03-24 08:39:14 +00:00
b8a047261c
[asan] one more try to remove pthread.h from asan_interceptors.cc
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llvm-svn: 153188
2012-03-21 15:02:39 +00:00
9113f3e000
[asan] add missing declarations from string.h and remove this header
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llvm-svn: 153187
2012-03-21 14:33:15 +00:00
abbcccc187
[asan] use extern declaraions of libc functions on Win and on Mac
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llvm-svn: 153186
2012-03-21 14:22:28 +00:00
ef50dfd6aa
[asan]: remove signal.h system header from interceptors
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llvm-svn: 153183
2012-03-21 13:44:39 +00:00
9ce04b0c36
[asan] merge mac-specific interceptors into one function
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llvm-svn: 153180
2012-03-21 12:42:00 +00:00
5f7048b396
[asan]: remove asan_mac.h
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llvm-svn: 153179
2012-03-21 12:29:54 +00:00
1d4145380e
[asan]: start removing os-specific asan_mac.h - move inclusion of mac system header to asan_mac.cc
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llvm-svn: 153178
2012-03-21 12:03:44 +00:00
1159250518
s/Printf/Report for libc interceptors (need this to debug the potential double interception)
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llvm-svn: 153175
2012-03-21 09:33:05 +00:00
1479418407
[ASan] get rid of setjmp.h header in interceptors
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llvm-svn: 153085
2012-03-20 11:40:09 +00:00
c298b3674f
[ASan]: remove GetMacosVersion from asan_mac.h header
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llvm-svn: 153084
2012-03-20 10:54:40 +00:00
af32a84b24
[asan] added an assert in InitializeAsanInterceptors (it should be run just once)
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llvm-svn: 152945
2012-03-16 21:02:13 +00:00
54a3cac5c5
[asan] fix unwinding inside libc intercepors (asan issue #46 )
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llvm-svn: 152768
2012-03-15 01:36:00 +00:00
fd2037162e
[asan] performance optimization: make sure the check for poisoned shadow inside inteceptors is inlined
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llvm-svn: 152767
2012-03-15 01:18:06 +00:00
cf526ff278
[ASan/Win] Fix wrong memmove,memcpy,memset interceptor definitons
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llvm-svn: 152622
2012-03-13 10:42:34 +00:00
2f48b870f3
[ASan] Add back the support for /MT; intercept statically-linked functions
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llvm-svn: 152557
2012-03-12 11:45:09 +00:00
7e07f56811
Introduce __asan_set_error_report_callback() to allow the client program post-process the error reports.
...
If the callback is set, Report() and Printf() print the reports into a buffer (together with stderr), which is then passed to the client.
llvm-svn: 151528
2012-02-27 14:06:48 +00:00
0f9c9a5332
[ASan] Intercept CreateThread on Windows
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llvm-svn: 151366
2012-02-24 15:28:43 +00:00
36d297d27f
[ASan] Intercept functions on Windows - first version
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llvm-svn: 151161
2012-02-22 13:59:49 +00:00
a5b3130e86
AddressSanitizer: get rid of limits.h, use constants for fixed size integral types instead.
...
llvm-svn: 151159
2012-02-22 12:54:04 +00:00
abaf196be3
[asan] Remove mentions of pthread*_t from interceptors.
...
Some platforms do not define pthread_t in stdlib.h.
llvm-svn: 151158
2012-02-22 12:31:25 +00:00
0d0b406aba
AddressSanitizer: use custom strtol/atoll functions
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llvm-svn: 150812
2012-02-17 16:15:09 +00:00
fbb50f19ad
AddressSanitizer: revert r150683 - we can't get rid of headers that easily
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llvm-svn: 150699
2012-02-16 17:00:45 +00:00
ca37969c24
AddressSanitizer: don't include pthread.h and signal.h in interceptors on Mac
...
llvm-svn: 150683
2012-02-16 11:26:52 +00:00
1e7e2370aa
AddressSanitizer: don't include pthread.h in asan_interceptors.cc on Linux
...
llvm-svn: 150573
2012-02-15 09:14:26 +00:00
d2a9075de0
[ASan] Define an internal implementation of strchr to make stack OOB tests pass on Windows
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llvm-svn: 150499
2012-02-14 19:33:04 +00:00
b25d0d2318
[asan] Return type of index() is char*.
...
This is important for Android, where we can't keep system headers
from leaking into asan_interceptors.cc.
llvm-svn: 150374
2012-02-13 12:12:32 +00:00
da7522b551
[asan] Disable signal&sigaction interceptors on Android.
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llvm-svn: 150373
2012-02-13 12:04:36 +00:00
7ce3e5bb8e
[asan] The first version of the RTL for Windows, reviewed at http://codereview.appspot.com/5647052
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llvm-svn: 150185
2012-02-09 17:20:14 +00:00
0394da7bea
[asan] unpoison the stack before every noreturn call. Fixes asan issue 37. rt part
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llvm-svn: 150101
2012-02-08 21:33:27 +00:00
8489f2a564
AddressSanitizer: start factoring out interception machinery
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llvm-svn: 150083
2012-02-08 19:52:01 +00:00
e725478e2f
AddressSanitizer: replace all "real_X" calls with "REAL(X)"
...
llvm-svn: 150073
2012-02-08 13:45:31 +00:00
23e3b90319
AddressSanitizer: Replace __attribute__ with macro (for Win compatibility). Patch by timurrrr@google.com
...
llvm-svn: 149686
2012-02-03 08:37:19 +00:00
15965f9c3d
AddressSanitizer: Add macro for definition/declaration of interceptors
...
llvm-svn: 149602
2012-02-02 10:39:40 +00:00
c97434ecaf
Disable wrapping memcpy() on Mac OS Lion, where it
...
actually falls back to memmove.
In this case we still need to initialize real_memcpy, so we set it to
real_memmove
We check for MACOS_VERSION_SNOW_LEOPARD, because currently only Snow
Leopard and Lion are supported.
llvm-svn: 149492
2012-02-01 10:07:52 +00:00
2dcef2d2a8
AddressSanitizer: Enforce default visibility for all libc interceptors
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llvm-svn: 149247
2012-01-30 13:42:44 +00:00
f519564d7c
Make compiler-rt/trunk/lib/asan compileable with Visual Studio 2008 on Windows.
...
Patch by Timur Iskhodzhanov (timurrrr@google.com )
To test:
$ cl /c *.c*
in the asan directory.
The code fails to link if you omit the "/c" part but that's one of the
next steps,
as well as a few TODO's I've put into the Windows-specific code.
llvm-svn: 149130
2012-01-27 15:15:04 +00:00
13d95d5e5a
Make compiler-rt/trunk/lib/asan compileable with g++.
...
Patch by Timur Iskhodzhanov (timurrrr@google.com )
The double-extern thing is
http://llvm.org/bugs/show_bug.cgi?id=11869
And the #include <string[s].h> are only needed on Mac (see comments in
the original code)
and also including them might make strchr/index conflict with the g++
system headers (which don't follow the man pages, ouch!)
llvm-svn: 149129
2012-01-27 10:52:37 +00:00
586ade114b
[asan] use internal_strcmp before asan_init is done. *may* fix asan issue #30
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llvm-svn: 148726
2012-01-23 21:20:05 +00:00
046ecc06be
Wrap CFStringCreateCopy to prevent copying constant CF strings.
...
This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=10
llvm-svn: 148696
2012-01-23 10:09:54 +00:00
84c44a8b8b
EHABI-based stack trace on ARM.
...
The change removes the unused FLAG_fast_unwind, and forces EHABI-based unwind
on ARM, and fast (FP-based) unwind everywhere else.
llvm-svn: 148468
2012-01-19 11:34:18 +00:00
5767f0f113
[asan] workaround for bug http://llvm.org/bugs/show_bug.cgi?id=11763 . Do not bark on memcpy(a, a, size).
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llvm-svn: 148318
2012-01-17 18:43:52 +00:00
2d3a67b73b
AddressSanitizer: create AsanThreadSummary together with AsanThread (in parent thread)
...
llvm-svn: 148286
2012-01-17 06:35:31 +00:00
50bf956f29
AddressSanitizer: fix recently introduced lint errors and broken test on Mac.
...
llvm-svn: 148235
2012-01-16 12:38:09 +00:00
bd53f597de
This patch adds two methods, __asan_allocate_island and __asan_deallocate_island
...
and switches our interceptors to using them instead of the default
vm_allocate-based approach used by mach_override_ptr.
To simplify the code, a fixed memory mapping is used for the allocation pool --
note that we can't mmap an arbitrary chunk of memory, because the shadow memory hasn't been mapped yet
(for the reasons discussed in http://code.google.com/p/address-sanitizer/issues/detail?id=24 , we cannot map the shadow earlier)
The patch drops the program startup time from several second to half a second,
which speeds up the execution of ASan tests noticeably.
Because of the virtual memory size occupied by the programs it's hard
to speed up the shutdown time, which would've also helped the tests.
llvm-svn: 148116
2012-01-13 16:13:58 +00:00
0c8fa7b8ed
[asan] remove OS-dependent includes from asan_interceptors.h
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llvm-svn: 147916
2012-01-11 02:32:40 +00:00
332923be32
[asan] get rid of the scary TSD destructor code. Now, we store the leaky AsanThreadSummary in TSD and never remove it from there.
...
llvm-svn: 147910
2012-01-11 02:03:16 +00:00
258d7b4182
[asan] hopefully fix the build on MacOS 10.6 (the code did work on 10.7, where I tested it)
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llvm-svn: 147896
2012-01-10 23:36:59 +00:00
a82f0d4950
[asan] move OS-dependent code away from asan_lock.h
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llvm-svn: 147878
2012-01-10 21:24:40 +00:00
3a55cfacf1
[asan] temporary reinstate string.h/strings.h. Removal of those caused a Mac build failulre which I failed to observe before the commit
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llvm-svn: 147810
2012-01-09 22:45:05 +00:00
d9cb2f13b3
[asan] don't include string.h and strings.h
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llvm-svn: 147809
2012-01-09 22:36:51 +00:00
65518014e2
[asan] don't use strstr/strncat from libc, use our own versions instead
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llvm-svn: 147807
2012-01-09 22:20:49 +00:00
3ab81d1f26
[asan] fix mac build once more
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llvm-svn: 147796
2012-01-09 19:50:06 +00:00
3e559e87a4
[asan]: fix typo from previous commit
...
llvm-svn: 147793
2012-01-09 19:41:15 +00:00
ba41e8d2c5
[asan]: fix mac build
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llvm-svn: 147792
2012-01-09 19:35:11 +00:00
9fd01e5ea5
[asan] refactoring: move all interceptors to a single file
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llvm-svn: 147784
2012-01-09 18:53:15 +00:00
6c4bd806fa
[asan] use custom libc-free getenv; a bit of refactoring around mmap calls
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llvm-svn: 147326
2011-12-28 22:58:01 +00:00
e4a84c4f1f
[asan] better message for parameter overlap bugs
...
llvm-svn: 147317
2011-12-28 19:24:31 +00:00
50bc2a71b2
[asan] interceptor for strcat. Patch by samsonov@google.com
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llvm-svn: 147316
2011-12-28 19:08:49 +00:00
6579e355c0
[asan] interceptor for memcmp. Patch by samsonov@google.com
...
llvm-svn: 147315
2011-12-28 18:56:42 +00:00
809632e28e
[asan] interceptors for strcasecmp and strncasecmp. patch by samsonov@google.com
...
llvm-svn: 147304
2011-12-28 02:24:50 +00:00
d47a91ad2a
[asan] canonicalise the output for double-free and wrong-free. fixes asan issue 18
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llvm-svn: 146501
2011-12-13 19:16:36 +00:00
92ebcadfe4
[asan] cleanup memset/memmove/memcpy interceptors and enable them on Mac. Patch by samsonov@google.com
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llvm-svn: 145826
2011-12-05 18:56:29 +00:00
2d27cdf621
[asan] minimize the use of STL. One bit is still left.
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llvm-svn: 145691
2011-12-02 18:42:04 +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
Alexander Potapenko