dec0f76c14
[sanitizer] Intercept ptrace.
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llvm-svn: 185142
2013-06-28 11:02:43 +00:00
a9db3f9757
[ASan] reimplement strdup() interceptor to get nicer stack traces for memory chunks allocated there
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llvm-svn: 184546
2013-06-21 14:41:59 +00:00
29b9fcf0a8
[ASan] Delete excessive 'extern "C"' around mlock* interceptors.
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llvm-svn: 184294
2013-06-19 11:36:51 +00:00
f67191b4c3
[ASan] mark ioctl test as xfailing on darwin. remove redundant semicolons
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llvm-svn: 183655
2013-06-10 14:17:08 +00:00
6af3fce55e
[ASan] An early return from InitializeAsanInterceptors() on Mac has been considered unobvious.
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Remove it and replace ASAN_INTERCEPT_FUNC with a no-op if SANITIZER_MAC==1.
llvm-svn: 183524
2013-06-07 15:10:02 +00:00
013da5cb37
Replaced 'bool .* = 0;' with '... = false;'
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llvm-svn: 182868
2013-05-29 17:26:25 +00:00
cc61eefd4b
Fix MSVC W3 compiler warnings
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llvm-svn: 182857
2013-05-29 14:11:44 +00:00
08f662845d
[sanitizer] Share TSan accept & accept4 interceptors with other sanitizers.
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llvm-svn: 182835
2013-05-29 09:09:58 +00:00
646ec67e25
Disable init-order checking before destructors are run.
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We don't want to report initialization-order bugs when a destructor of a global
variable accesses dynamically initialized global from another
(not necessarily initialized) module. We do this by intercepting __cxa_atexit and
registrering our own callback that unpoisons shadow for all dynamically initialized
global variables.
llvm-svn: 182637
2013-05-24 11:46:56 +00:00
5c38383205
[ASan] Add allow_user_segv_handler to let users override SEGV handler installed by ASan
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llvm-svn: 180255
2013-04-25 10:52:15 +00:00
bcd32a9525
[ASan] Disable strict-init-order checker once we have more than one thread, as this mode is thread-hostile
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llvm-svn: 180106
2013-04-23 13:57:35 +00:00
755eb32a39
[sanitizer] Add syscall handlers to ASan and TSan runtimes.
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ASan checks addressability of syscall arguments. TSan does nothing for now.
llvm-svn: 179380
2013-04-12 14:57:03 +00:00
460067823b
[sanitizer] Interceptors for wait*.
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llvm-svn: 179096
2013-04-09 14:34:59 +00:00
5b4267f7e7
[sanitizer] found a bug by code inspection: CHECK(a=b) instead of CHECK(a==b). Was puzzled why lint did not catch it. Turns out this check was disabled for asan source. fix all cases and enable the check
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llvm-svn: 178872
2013-04-05 14:40:25 +00:00
21cb74318c
[ASan] Kill the remainders of platform defines in favor of SANITIZER_ defines
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llvm-svn: 178629
2013-04-03 07:29:53 +00:00
a88c60b085
[ASan] Speed-up initialization-order checking: create and use fast versions of PoisonShadow functions, store copies of __asan_global descriptors in a vector instead of list of pointers. This gives 3x speedup on both benchmarks and real binaries with lots of globals.
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llvm-svn: 178239
2013-03-28 15:42:43 +00:00
6f4b34bcf4
asan/tsan: move strcasecmp() interceptor to sanitizer_common
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llvm-svn: 178010
2013-03-26 12:40:23 +00:00
f1311dfce1
[ASan] fix-up for r177634 on Windows.
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llvm-svn: 177711
2013-03-22 07:48:23 +00:00
54afba8b62
[ASan] Switch ASan to generic ThreadRegistry from sanitizer_common. Delete ASan-specific AsanThreadRegistry.
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llvm-svn: 177634
2013-03-21 11:23:41 +00:00
cf025cb2e6
[ASan] Move GetCurrentThread/SetCurrentThread from AsanThreadRegistry class into plain functions: they don't actually use registry
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llvm-svn: 177501
2013-03-20 09:23:28 +00:00
9a8f0f55d5
[asan] s/ASAN_POSIX/SANITIZER_POSIX/
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llvm-svn: 177407
2013-03-19 15:26:41 +00:00
0af672326a
[sanitizer] Replace more platform checks with SANITIZER_ constants.
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llvm-svn: 177400
2013-03-19 14:33:38 +00:00
f1c48eb509
[ASan] Add the memcmp_strict flag (1 by default) that controls the behavior of accessibility checks in memcmp.
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1: memcmp(p1, p2, n) always checks n bytes
0: memcmp checks up to n bytes depending on whether the memory contents differ.
llvm-svn: 176256
2013-02-28 14:09:30 +00:00
8caf654731
[asan] fix the output for range accesses (memset, etc); improve the tests; more strict checking in memcmp
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llvm-svn: 176078
2013-02-26 07:25:18 +00:00
8dbcb98c52
[ASan] Revert the incorrect macro on Linux.
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llvm-svn: 175745
2013-02-21 15:15:43 +00:00
e8ba1c851a
[ASan] Refactoring: nuke the redundant function declarations in asan_intercepted_functions.h
...
that had been used on OS X only.
The INTERCEPTOR() macro on OS X is now responsible for declaring the wrapped function, the wrapper and the
pair of pointers to them in __DATA,__interposition section. Thus adding an interceptor requires editing a single file now.
llvm-svn: 175740
2013-02-21 14:41:16 +00:00
ab5be26af5
[asan] speedup by more than 2x handling of the small memset/memcpy/etc calls
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llvm-svn: 175728
2013-02-21 07:07:39 +00:00
b4c2c5c8a6
[asan] print a short one-line report summary after the full report. Currently, works only if symbolization happens in-process.
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llvm-svn: 174501
2013-02-06 12:36:49 +00:00
34157fc33f
[ASan] Delete the code related to static runtime on OS X.
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Nuke lib/interception/mach_override.
llvm-svn: 174383
2013-02-05 15:57:12 +00:00
1bc7298c44
[asan] Fix nonsensical reports of partial right OOB.
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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
01671c33ff
[sanitizer] lint
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llvm-svn: 172817
2013-01-18 13:12:56 +00:00
a6c4a387ee
[sanitizer] Rename 2 files *.h->*.inc as appropriate.
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Also add a missing include.
llvm-svn: 172814
2013-01-18 13:01:18 +00:00
91181eaa59
[sanitizer] Fix Mac build.
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llvm-svn: 172809
2013-01-18 11:38:23 +00:00
63c36bbe5e
[asan] fix two off-by-one errors that seem to affect only PowerPC because only there the stack top may be equal to the address space top. Noted by Andreas Schwab in http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55975#c11 . Also make swapcontext interceptor a bit more robust
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llvm-svn: 172807
2013-01-18 11:30:36 +00:00
222076e972
[sanitizer] Common *scanf interceptors.
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llvm-svn: 172805
2013-01-18 11:17:23 +00:00
69fe0ba415
[sanitizer] reapply r172719, r172721-172723, r172725, and also fix the warning on Mac.
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llvm-svn: 172791
2013-01-18 06:43:13 +00:00
7956e0094d
Revert r172719, r172721-172723, and r172725.
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The r172719 patch broke the build on Mac, the others depended on it.
compiler-rt/lib/asan/asan_interceptors.cc:78:13: error: unused function
'SetThreadName' [-Werror,-Wunused-function]
static void SetThreadName(const char *name) {
Orignal headlines:
[asan] attempting to fix the Mac build
[asan] restructure read/pread/pread64 tests
[sanitizer] move write/pwrite/pwrite64 interceptors to common
[msan] start using common interceptors in msan
[tsan] move prctl interceptor from asan to common_interceptors thus enabling it for tsan too
llvm-svn: 172763
2013-01-17 22:51:56 +00:00
4f1885a109
[ASan] minor changes to swapcontext handling: don't clear shadow memory if context stack is too large
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llvm-svn: 172727
2013-01-17 15:45:28 +00:00
f7f5566055
[tsan] move prctl interceptor from asan to common_interceptors thus enabling it for tsan too
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llvm-svn: 172719
2013-01-17 13:38:16 +00:00
93ebdb5d64
[sanitizer] a bit more unification for interceptors (merge read/pread/pread64 in asan and tsan)
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llvm-svn: 172713
2013-01-17 13:09:00 +00:00
cb510e50e2
[asan] implement more strict checking for memset/etc parameters. Instead of checking the first and the last byte, we check the entire shadow region. This costs ~10 slowdown for the instrumented functions. Motivated by a nasty memset-buffer-overflow-by-140-bytes in chrome which was reported as a use-after-free or not at all
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llvm-svn: 171198
2012-12-28 15:24:16 +00:00
baf583c443
[asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder
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llvm-svn: 170117
2012-12-13 09:34:23 +00:00
9a58d399c7
[asan] add sanitizer_common/sanitizer_common_interceptors.h with pread/pread64/read interceptors. Use it in asan. Add asan tests for pread/etc. Add FIXME to tsan/msan interceptors
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llvm-svn: 169966
2012-12-12 09:54:35 +00:00
af5a108ea8
[ASan] Typo fix in memcpy() and memmove() interceptors: ASAN_WRITE_RANGE and ASAN_READ_RANGE were swapped.
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This has been spotted by Anna Zaks (ganna@apple.com )
llvm-svn: 169736
2012-12-10 16:02:13 +00:00
fa94fa52ad
ASan: intercept prctl on Linux only
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llvm-svn: 169616
2012-12-07 17:54:38 +00:00
e7108227ca
[asan] intercept prctl(PR_SET_NAME) and set the thread name. Output the thread names (if non-empty) in asan reports
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llvm-svn: 169601
2012-12-07 15:15:01 +00:00
1a6f4d4ba6
[asan] undo the debug printf
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llvm-svn: 169381
2012-12-05 13:39:29 +00:00
571232b8cf
[tsan] get rid of *allocator64* files, moving everything to *allocator* files. This will help with the 32-bit allocator implementation and testing
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llvm-svn: 169368
2012-12-05 10:09:15 +00:00
0d7755ccb5
[ASan] Add interceptor for swapcontext to fight with false positives in some of its use cases.
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llvm-svn: 168508
2012-11-23 09:46:34 +00:00
Evgeniy Stepanov