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
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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
99843d3a29
In the dynamic runtime on Mac OS, do not call internal_strdup() before __asan_init().
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This may result in a crash at startup.
Fixes http://code.google.com/p/address-sanitizer/issues/detail?id=123 .
llvm-svn: 166768
2012-10-26 11:31:14 +00:00
faa9c86fd0
[ASan] Use internal_memmove() in both static and dynamic runtime libraries if asan_inited != 0.
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llvm-svn: 166549
2012-10-24 09:19:16 +00:00
7b03290c43
Implement internal_memmove.
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Use internal_memmove() and internal_memcpy() in the memcpy() and memmove() wrappers
when building the dynamic runtime (OS X only), to work around a bug in resolver functions wrapping.
See also http://code.google.com/p/address-sanitizer/issues/detail?id=116
llvm-svn: 165939
2012-10-15 15:34:41 +00:00
b4db79fc7d
If !asan_inited, call internal versions of libc functions where available.
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This is to remove unnecessary #if directives.
llvm-svn: 165307
2012-10-05 12:11:06 +00:00
d2f6b97417
Avoid calling __asan_init from memcpy(), memmove(), memset() during libSystem initialization.
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Fixes http://code.google.com/p/address-sanitizer/issues/detail?id=117 .
llvm-svn: 165227
2012-10-04 13:41:28 +00:00
694633e19b
[Sanitizer] first effort to start building ASan runtime with -Werror in CMake build
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llvm-svn: 163686
2012-09-12 07:38:47 +00:00
67192d41ee
Allow to call strchr() from __asan_init().
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Fixes PR13794.
llvm-svn: 163493
2012-09-10 08:35:12 +00:00
1aa4fef601
Relocate the external headers provided by ASan and the common sanitizer
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library.
These headers are intended to be available to user code when built with
AddressSanitizer (or one of the other sanitizer's in the future) to
interface with the runtime library. As such, they form stable external
C interfaces, and the headers shouldn't be located within the
implementation.
I've pulled them out into what seem like fairly obvious locations and
names, but I'm wide open to further bikeshedding of these names and
locations.
I've updated the code and the build system to cope with the new
locations, both CMake and Makefile. Please let me know if this breaks
anyone's build.
The eventual goal is to install these headers along side the Clang
builtin headers when we build the ASan runtime and install it. My
current thinking is to locate them at:
<prefix>/lib/clang/X.Y/include/sanitizer/common_interface_defs.h
<prefix>/lib/clang/X.Y/include/sanitizer/asan_interface.h
<prefix>/lib/clang/X.Y/include/sanitizer/...
But maybe others have different suggestions?
Fixing the style of the #include between these headers at least unblocks
experimentation with installing them as they now should work when
installed in these locations.
llvm-svn: 162822
2012-08-29 02:27:54 +00:00
5f487de8a3
Fix lint warnings.
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llvm-svn: 162092
2012-08-17 10:08:51 +00:00
c62210e3ff
Commit the source and CMake changes that will allow to build ASan runtime
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as a shared library on Mac OS. This will provide an alternative to
mach_override.
llvm-svn: 162091
2012-08-17 09:00:08 +00:00
f6344ffe39
Introduce asan_intercepted_functions.h which contains the declarations wrapped functions and their wrappers.
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Those declarations are going to be shared between asan_interceptors.cc and the dynamic runtime library on Mac OS.
llvm-svn: 161952
2012-08-15 15:24:48 +00:00
81a1ec8ea6
Do not attempt to intercept mlock and friends on Windows.
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llvm-svn: 161939
2012-08-15 09:46:45 +00:00
785f8bc4ec
Use the common interception machinery for mlock/munlock/mlockall/munlockall.
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llvm-svn: 161938
2012-08-15 09:22:57 +00:00
c0ff933d8b
[ASan] Move error reporting code away from file with interceptors
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llvm-svn: 161570
2012-08-09 08:32:33 +00:00
33824c54f6
Make strcat() and strncat() more standard-compliant (check for invalid parameters even if zero bytes is copied, more accurate overlap check)
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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.
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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.
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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
Kostya Serebryany