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
07d06d7cf5
Remove all 'static' before ALWAYS_INLINE
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llvm-svn: 178290
2013-03-28 21:16:09 +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
920b3b9a0c
[ASan] Move malloc stats collection away from AsanThreadRegistry class.
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llvm-svn: 177508
2013-03-20 10:11:24 +00:00
95eaa21637
[sanitizer] More renamed macros.
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llvm-svn: 177401
2013-03-19 14:54:17 +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
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
9f298da9bd
[asan] instrument memory accesses with unusual sizes
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This patch makes asan instrument memory accesses with unusual sizes (e.g. 5 bytes or 10 bytes), e.g. long double or
packed structures.
Instrumentation is done with two 1-byte checks
(first and last bytes) and if the error is found
__asan_report_load_n(addr, real_size) or
__asan_report_store_n(addr, real_size)
is called.
asan-rt part
Also fix lint.
llvm-svn: 175508
2013-02-19 11:30:25 +00:00
4544d1fa3d
[ASan] make variables unsigned to silence warnings - attempt 2
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llvm-svn: 175285
2013-02-15 19:22:49 +00:00
f6d7379def
[ASan] make variable unsigned to silence the warning
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llvm-svn: 175284
2013-02-15 19:02:32 +00:00
3182c3e441
[ASan] Fix https://code.google.com/p/address-sanitizer/issues/detail?id=159
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MaybeReexec() does now a tricky job to manage DYLD_INSERT_LIBRARIES in a safe way.
Because we're using library interposition, it's critical for an instrumented app
to be executed with the runtime library present in DYLD_INSERT_LIBRARIES list.
Therefore if it's initially missing in that list, we append the runtime library name
to the value of DYLD_INSERT_LIBRARIES and then exec() ourselves.
On the other hand, some of the apps exec()ed by our program may not want to have
ASan runtime library preloaded, so we remove the runtime library from the
DYLD_INSERT_LIBRARIES if it's already there.
Users may want to preload other libraries using DYLD_INSERT_LIBRARIES, so we preserve those.
llvm-svn: 175276
2013-02-15 16:10:49 +00:00
aa7f2b5aa6
[tsan] disable a failing test until it gets fixed. fix lint
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llvm-svn: 175137
2013-02-14 06:54:51 +00:00
c5ba5ef3c5
[ASan] When re-executing the process on OS X, make sure we update the existing DYLD_INSERT_LIBRARIES correctly.
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Previously ASan used to hang in an exec loop, because it failed to overwrite the env var value
(see https://code.google.com/p/address-sanitizer/issues/detail?id=159 ).
llvm-svn: 175059
2013-02-13 17:52:55 +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
dc00c44d46
[ASan] Remove the declarations of pthread_workqueue_t and pthread_workitem_handle_t, which are used no more.
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Kudos to Jeremy Huddleston Sequoia <jeremyhu@apple.com>
llvm-svn: 173143
2013-01-22 10:32:06 +00:00
cae42d23a6
[ASan] Use dylib interposition to hook memory allocation in the dynamic runtime.
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This CL drastically simplifies the way we're hooking the memory allocation routines in ASan on Mac by using dylib interposition to replace the main malloc_zone_* functions. This allows us to avoid replacing the default CFAllocator and drop the CF dependency at all.
Committing this patch will result in the static runtime being broken. A follow-up CL will switch ASan to use the dynamic runtime library.
llvm-svn: 173134
2013-01-22 09:14:54 +00:00
51794a390f
Remove references to pthread_workqueue_additem_np(), which isn't in the official libdispatch API.
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llvm-svn: 172802
2013-01-18 10:27:31 +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
f22982bf0a
asan/tsan: move blocking mutex from asan to sanitizer_common
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llvm-svn: 172380
2013-01-14 07:51:39 +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
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llvm-svn: 170869
2012-12-21 08:53:59 +00:00
060bfab568
[asan] fix win build
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llvm-svn: 170119
2012-12-13 10:03:50 +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
0dcd6d9468
[ASan] Do not build the interceptors that use ObjC blocks if the compiler does not support blocks.
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Need to define MISSING_BLOCKS_SUPPORT in this case at buildtime.
Patch by Jack Howarth <howarth@bromo.med.uc.edu>
llvm-svn: 169206
2012-12-04 02:41:47 +00:00
df198db1aa
[asan/tsan] get rid of kPageSize completely in favor of GetPageSizeCached(). This makes the code friendly to more platforms
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llvm-svn: 168537
2012-11-24 05:03:11 +00:00
aac36b345a
[ASan] intercept swapcontext on Linux only
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llvm-svn: 168509
2012-11-23 10:14:44 +00:00
734f1eb5f4
[asan/tsan] do not use __WORDSIZE macro, as it is glibc-private thing. Instead, define our own SANITIZER_WORDSIZE
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llvm-svn: 168424
2012-11-21 12:38:58 +00:00
1eef2b813c
[ASan] Rename ReplaceCFAllocator to MaybeReplaceCFAllocator.
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Replace the allocator only if the replace_cfallocator flag is set (in some cases it wasn't checked)
llvm-svn: 166550
2012-10-24 09:35:23 +00:00
e3e80d607f
Do not call ReplaceCFAllocator() before __CFInitialize(), otherwise crashes are possible on 10.8.
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Fixes http://code.google.com/p/address-sanitizer/issues/detail?id=122
llvm-svn: 166029
2012-10-16 16:58:10 +00:00
4a78e1002d
Add MACOS_VERSION_MOUNTAIN_LION.
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llvm-svn: 166026
2012-10-16 16:24:49 +00:00
4787d0fbef
[ASan] more macro/casting magic to suppress warnings
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llvm-svn: 163706
2012-09-12 14:10:14 +00:00
3ecf916c33
Use the return value of dladdr() to avoid Clang warning.
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llvm-svn: 163311
2012-09-06 12:18:45 +00:00
ee92877f17
[asan] more refactoring to move StackTrace to sanitizer_common
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llvm-svn: 162752
2012-08-28 13:25:55 +00:00
6b0d775229
[asan] some renaming before we move StackTrace into sanitizer_common
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llvm-svn: 162747
2012-08-28 11:54:30 +00:00
fefc1e989c
If the program is linked to a dynamic ASan runtime which is not present in DYLD_INSERT_LIBRARIES
...
(which, in turn, is required for our interceptors to take effect), re-exec the program with
DYLD_INSERT_LIBRARIES set.
llvm-svn: 162547
2012-08-24 09:22:05 +00:00
2ebe619340
Re-implement the wrappers for libdispatch functions using blocks where appropriate
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(kudos to Anna Zaks for a good example).
This simplifies the code much and lets us not implement internal parts of libdispatch.
All ASan tests from t32 and t64 should pass with the dylib runtime now.
llvm-svn: 162439
2012-08-23 09:34:40 +00:00
6b745b5281
[asan] fix lint
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llvm-svn: 162258
2012-08-21 06:43:44 +00:00
02e6f03236
Dynamic interceptors for dispatch_async and dispatch_after.
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llvm-svn: 162202
2012-08-20 11:59:26 +00:00
1233d558dc
Minor refactoring: reduce code duplication by introducing a macro for dispatch_sync_f, dispatch_async_f, dispatch_barrier_async_f bodies.
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llvm-svn: 162199
2012-08-20 09:25:10 +00:00
20f9fcc285
Move the prototype of __CFInitialize to asan_mac.h so that asan_malloc_mac.cc may use it in the dynamic library mode.
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llvm-svn: 161945
2012-08-15 12:23:36 +00:00
36d2dff143
[ASan] fix cmake build warning
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llvm-svn: 160957
2012-07-30 10:18:31 +00:00
51e6488b31
Intercept CFAllocator for each thread in the program.
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Test that child threads use the ASan allocator, that allocated memory can be passed to another thread and deallocated on it.
This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=81
llvm-svn: 160630
2012-07-23 14:07:58 +00:00
34efb8e9b9
[ASan] Use common flags parsing machinery.
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llvm-svn: 159933
2012-07-09 14:36:04 +00:00
89f9270366
A portable way to check whether __CFInitialize has been called: compare kCFAllocatorSystemDefault._base._cfisa to 0.
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This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=87 on both Lion and Snow Leopard.
llvm-svn: 159821
2012-07-06 13:04:12 +00:00
d2ff0b087a
Do not check for __CFRuntimeClassTableSize on non-10.6 systems, where this symbol is private.
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This change may cause http://code.google.com/p/address-sanitizer/issues/detail?id=87 to re-appear on Lion.
llvm-svn: 159819
2012-07-06 11:58:54 +00:00
25b567dd0d
Fix http://code.google.com/p/address-sanitizer/issues/detail?id=87 by making sure we replace the default CFAllocator only after __CFInitialize has been called.
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llvm-svn: 159749
2012-07-05 14:46:56 +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
f9f2fbacb3
Actually intercept free() to ensure that the deallocations caused by other functions directly calling it are routed to our allocator.
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For the allocations that do not belong to any malloc zone check whether they're padded with a pointer to ASan's CFAllocator. If so, free the original (unpadded) pointer.
This should fix AddressSanitizerMac.NSURLDeallocation and issue 70.
llvm-svn: 158863
2012-06-20 22:29:09 +00:00
c70d1086f6
[Sanitizer] move rest of mmap routines to common sanitizer runtime
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llvm-svn: 158452
2012-06-14 14:42:58 +00:00
0c53a38abb
[Sanitizer] move portable GetEnv to common sanitizer runtime
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llvm-svn: 158451
2012-06-14 14:07:21 +00:00
Kostya Serebryany