Commit Graph

3934 Commits

Author SHA1 Message Date
Evgeniy Stepanov 8f41674719 [msan] Add new MSan callbacks for instrumentation-with-calls mode.
llvm-svn: 206584
2014-04-18 12:15:24 +00:00
Dmitry Vyukov 10d4b14a16 tsan: add benchmark that allows to investigate shadow memory consumption
llvm-svn: 206578
2014-04-18 10:37:39 +00:00
Alexander Potapenko da1c510ea6 [ASan] Change AddressSanitizer.LoadStoreCallbacks to use asan_malloc and asan_free.
Interceptors don't really work on OSX in asan_noinst_test.cc (this is more or less intentional),
so one shouldn't call intercepted functions in this test -- added a comment about this.

llvm-svn: 206477
2014-04-17 17:29:07 +00:00
Kostya Serebryany 664b1e2f9b [asan] fix a bug in outlined asan checks and in the corresponding test (ouch)
llvm-svn: 206470
2014-04-17 14:38:25 +00:00
Alexey Samsonov aefbec9dfd Move pthread_cond_* interceptors from sanitizer_common with all the ugly hacks to TSan
llvm-svn: 206423
2014-04-16 23:06:46 +00:00
Kostya Serebryany ae401ca5e7 [asan] add __asan_load1/__asan_store1/... callbacks to asan-rt; together with -mllvm -asan-instrumentation-with-call-threshold=N this will be a workaround for PR17409
llvm-svn: 206387
2014-04-16 13:52:28 +00:00
Kostya Serebryany 498b18a01e [asan] try to harden __tls_get_addr interceptor against signals (no good test still); update the comment in a test.
llvm-svn: 206367
2014-04-16 09:07:27 +00:00
Kostya Serebryany d4b1b2068e [asan] fix the alloctor code to not use opaque data structure, which was larger than needed. This was a leftover of the allocator1=>allocator2 migration; thanks Yuri Gribov for reminding
llvm-svn: 206280
2014-04-15 13:30:32 +00:00
Alexander Potapenko 65a6c57013 [ASan] Replace a CHECK for mmap_limit_mb with a RAW_CHECK.
In the case of a CHECK failure the program tries to fork and launch llvm-symbolizer,
but hangs in mz_force_lock because one of the allocator locks is already acquired.

llvm-svn: 206274
2014-04-15 11:36:18 +00:00
Kostya Serebryany b1232474b2 [asan] try fixing the mmap_limit_mb failure on buildbot (tests pass locally)
llvm-svn: 206262
2014-04-15 08:35:43 +00:00
Hans Wennborg 8f80ccc635 sanitizer_atomic_msvc.h: add atomic_fetch_{add,sub} overloads for uintptr_t
This should hopefully unbreak the MSVC build after r206178.

llvm-svn: 206200
2014-04-14 17:43:49 +00:00
Hans Wennborg ec77f619bb sanitizer_deadlock_detector.h: MSVC 2012 doesn't like compound literals
llvm-svn: 206199
2014-04-14 17:43:45 +00:00
Evgeniy Stepanov 81d80f7578 [asan] Fix mmap_limit_mb test to not use C++11.
llvm-svn: 206182
2014-04-14 15:37:02 +00:00
Evgeniy Stepanov 681016b2ea [asan] Do not use lambda in sanitizer lit tests.
We may be building with a very old C++ library.

llvm-svn: 206180
2014-04-14 15:19:07 +00:00
Evgeniy Stepanov 9ce9a6cdf6 [msan] Intercept wcsftime().
llvm-svn: 206179
2014-04-14 14:59:42 +00:00
Kostya Serebryany bcfbea6d4e [asan] added internal flag mmap_limit_mb
llvm-svn: 206178
2014-04-14 14:51:01 +00:00
Kostya Serebryany 90527cb324 [asan] don't use bool in public interface, make sure the interface headers are usable in plain C
llvm-svn: 206160
2014-04-14 11:16:53 +00:00
Kostya Serebryany f694ab1f18 [asan] provide better reports for cases where memcpy/etc get negative size parameter. Also fix a typo found by Tetsuo Kiso
llvm-svn: 206158
2014-04-14 09:50:52 +00:00
Dmitry Vyukov 51f5b5fd73 tsan: serialize report printing in standalone deadlock detector
otherwise reports get intermixed

llvm-svn: 206043
2014-04-11 17:54:27 +00:00
Dmitry Vyukov b5eb8f0212 tsan: fix vector clocks
the new optimizations break when thread ids gets reused (clocks go backwards)
add the necessary tests as well

llvm-svn: 206035
2014-04-11 15:38:03 +00:00
Dmitry Vyukov fa1d56c31f tsan: ignore interceptors from symbolizer
ocassionally we see races coming from symbolizer interceptors (e.g. memcmp)
reproducible only only on large complex programs

llvm-svn: 206034
2014-04-11 15:36:54 +00:00
Evgeniy Stepanov 77d8793fa6 [tsan] Fix output tests.
llvm-svn: 206031
2014-04-11 13:01:20 +00:00
Evgeniy Stepanov 652cbd7c15 [tsan] Fix false positive on xdr*_create.
llvm-svn: 206030
2014-04-11 12:29:24 +00:00
Evgeniy Stepanov d326c81117 [msan] mprotect() more memory to detect user code outside of application range.
llvm-svn: 206028
2014-04-11 12:04:29 +00:00
Viktor Kutuzov 7004b8c07c Enable building of sanitizers on FreeBSD
llvm-svn: 205919
2014-04-09 18:45:12 +00:00
Viktor Kutuzov 82185a2088 Declare _DYNAMIC and dl_phdr_info in asan_linux.cc on FreeBSD
llvm-svn: 205852
2014-04-09 13:37:19 +00:00
Manuel Klimek 0ee8505800 Update arc config to new domain.
llvm-svn: 205702
2014-04-07 10:22:41 +00:00
Evgeniy Stepanov 24c8d92fec [sanitizer] Intercept a subset of sunrpc interface (xdr_*).
llvm-svn: 205627
2014-04-04 14:51:23 +00:00
Alexey Samsonov 7dc3c0fb2b [ASan] Explicitly specify -ldl/-lpthread in RUN-lines where needed
llvm-svn: 205623
2014-04-04 12:24:46 +00:00
Dmitry Vyukov 1d66c4d5b7 tsan: improve error message in test
we've seen a flake on this test
next time it happens we will be able to gather some info

llvm-svn: 205619
2014-04-04 09:52:41 +00:00
Evgeniy Stepanov f653cda269 [msan] Introduce MsanThread. Move thread-local allocator cache out of TLS.
This reduces .tbss from 109K down to almost nothing.

llvm-svn: 205618
2014-04-04 09:47:41 +00:00
Kostya Serebryany 9f20c9b17c [asan] fix a leak in __tls_get_addr handler; introduce a run-time flag to disable this handler completely; remove a workaround for a bug fixed in glibc
llvm-svn: 205617
2014-04-04 09:10:58 +00:00
Evgeniy Stepanov 6d8f71f928 Revert r205613.
llvm-svn: 205614
2014-04-04 08:58:16 +00:00
Evgeniy Stepanov fe82d5f849 [msan] Fix compilation of a disabled test.
llvm-svn: 205613
2014-04-04 08:39:50 +00:00
Alexey Samsonov 425314a65f [TSan] Fix a rare deadlock on multithreaded fork.
If a multi-threaded program calls fork(), TSan ignores all memory accesses
in the child to prevent deadlocks in TSan runtime. This is OK, as child is
probably going to call exec() as soon as possible. However, a rare deadlocks
could be caused by ThreadIgnoreBegin() function itself.

ThreadIgnoreBegin() remembers the current stack trace and puts it into the
StackDepot to report a warning later if a thread exited with ignores enabled.
Using StackDepotPut in a child process is dangerous: it locks a mutex on
a slow path, which could be already locked in a parent process.

The fix is simple: just don't put current stack traces to StackDepot in
ThreadIgnoreBegin() and ThreadIgnoreSyncBegin() functions if we're
running after a multithreaded fork. We will not report any
"thread exited with ignores enabled" errors in this case anyway.

Submitting this without a testcase, as I believe the standalone reproducer
is pretty hard to construct.

llvm-svn: 205534
2014-04-03 12:51:26 +00:00
Alexey Samsonov b4525218d4 [TSan] Fix a typo ThreadIgnoreSyncEnd. Found by inspection
llvm-svn: 205531
2014-04-03 12:28:16 +00:00
Alexey Samsonov 11ff0a26a4 [ASan] Fix incompatible runtimes check: don't iterate /proc/self/maps on every call to __asan_init
llvm-svn: 205418
2014-04-02 13:09:22 +00:00
Evgeniy Stepanov 6cc687541f [msan] Add missing test for r205413.
llvm-svn: 205417
2014-04-02 12:38:13 +00:00
Evgeniy Stepanov 2dcb5c0a2c [msan] Kill __msan_print_param_shadow.
It does not do what it's name says, and what it actually does is hard to
describe, and is not useful at all.

llvm-svn: 205415
2014-04-02 11:55:24 +00:00
Evgeniy Stepanov 80cb930c09 [msan] Add __msan_check_mem_is_initialized.
An assert()-like function that checks that a memory range is fully initialized.

llvm-svn: 205413
2014-04-02 11:50:42 +00:00
Evgeniy Stepanov a55fcd35e9 [msan] Precise origin handling in __unaligned_(load|store)*.
llvm-svn: 205412
2014-04-02 11:06:35 +00:00
Alexey Samsonov 2c66a22e56 [ASan] One more attempt to fix Android build
llvm-svn: 205411
2014-04-02 09:36:36 +00:00
Evgeniy Stepanov 8dbf3faa16 [msan] clang-format several unit tests
llvm-svn: 205410
2014-04-02 09:17:55 +00:00
Greg Fitzgerald c744492f7c Allow the user to override the compiler used for testing
Change-Id: I76d4708a26f17185efb746f4b836aa32f3f8a44f
llvm-svn: 205362
2014-04-01 21:54:56 +00:00
Joerg Sonnenberger a350ba4883 Move __addsf3 and __adddf3 into the corresponding blocks that define
fp_t.

llvm-svn: 205344
2014-04-01 18:39:58 +00:00
Duncan P. N. Exon Smith dd690a2ca4 InstrProfile: Use SANITIZER_COMMON_LIT_TEST_DEPS
Take advantage of the SANITIZER_COMMON_LIT_TEST_DEPS variable.

<rdar://problem/16458307>

llvm-svn: 205321
2014-04-01 16:05:15 +00:00
Duncan P. N. Exon Smith 48e24c7355 InstrProf: Turn on test for Linux
Enabling test/profile on Linux to get feedback from the buildbots.  I'm
hoping this just works...

<rdar://problem/16458307>

llvm-svn: 205319
2014-04-01 15:56:05 +00:00
Duncan P. N. Exon Smith a5f806e599 InstrProf: Remove LTO dependency from test
The -flto flag relies on linker features that are not available on all
platforms.

<rdar://problem/16458307>

llvm-svn: 205318
2014-04-01 15:29:27 +00:00
Alexander Potapenko f3e92a9e71 [tsan] Remove an accidentally committed debug print.
llvm-svn: 205316
2014-04-01 15:07:09 +00:00
Joerg Sonnenberger 6530149704 Add support for IEEE754 quad precision comparison functions.
From GuanHong Liu.

Differential Revision: http://llvm-reviews.chandlerc.com/D2797

llvm-svn: 205312
2014-04-01 13:42:56 +00:00