Commit Graph

3916 Commits

Author SHA1 Message Date
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
Alexey Samsonov 107e4abfd0 [ASan] Fix Android build
llvm-svn: 205311
2014-04-01 13:42:16 +00:00
Alexey Samsonov 56b6ee9833 [ASan] Optional support for dynamic ASan runtime on Linux.
Based on http://llvm-reviews.chandlerc.com/D3042 by Yuri Gribov!

llvm-svn: 205308
2014-04-01 13:16:30 +00:00
Alexey Samsonov 28f30b4176 [TSan] Make this test more portable
llvm-svn: 205300
2014-04-01 11:51:50 +00:00
Kostya Serebryany 432c46bf70 [sanitizer] one more stress test for the deadlock detector; this one stresses the slow path with a global lock
llvm-svn: 205299
2014-04-01 11:35:55 +00:00
Viktor Kutuzov 7fedc179d2 Add FreeBSD support to sanitizers' procmaps facilities
llvm-svn: 205291
2014-04-01 10:34:21 +00:00
Viktor Kutuzov 3ece65b894 Fix definition of the __sanitizer_passwd structure on FreeBSD
llvm-svn: 205290
2014-04-01 10:29:42 +00:00
Duncan P. N. Exon Smith da91cbdfa8 InstrProf: lit.cfg magic for running tests from source
Implement magic in compiler-rt to enable llvm-lit to be invoked on the
source tree in lib/profile.  This relies on a paired commit in the llvm
tree that exposes a new built-in parameter.

<rdar://problem/16458307>

llvm-svn: 205263
2014-03-31 23:14:28 +00:00
Duncan P. N. Exon Smith ae2f0bbcf1 InstrProf: Add simple compiler-rt test
Add the test infrastructure for testing lib/profile and a single test.
This initial commit only enables the tests on Darwin, but they'll be
enabled on Linux soon after.

<rdar://problem/16458307>

llvm-svn: 205256
2014-03-31 22:45:37 +00:00
Evgeniy Stepanov 3c95744de8 [msan] Remove an extra top frame from track-origins=2 reports.
llvm-svn: 205192
2014-03-31 14:18:55 +00:00
Evgeniy Stepanov ff127bff89 [sanitizer] Test that we can compile C++ code on the target platform.
llvm-svn: 205184
2014-03-31 13:50:13 +00:00
Alexey Samsonov 78a8435fd6 [CMake] Rename add_compiler_rt_static_runtime to add_compiler_rt_runtime.
Soon there will be an option to build compiler-rt parts as shared libraries
on Linux. Extracted from http://llvm-reviews.chandlerc.com/D3042
by Yuri Gribov.

llvm-svn: 205183
2014-03-31 13:45:36 +00:00
Alexander Potapenko 0315b52444 [TSan] Follow-up for r205175: typo fix in the test.
llvm-svn: 205176
2014-03-31 10:51:13 +00:00
Alexander Potapenko 0426176940 [TSan] Replace several Printf() calls with Report() to ease debugging.
llvm-svn: 205175
2014-03-31 10:46:07 +00:00
Kostya Serebryany 683d55f50e [sanitizer] speed up the bitvector-based deadlock detector by ~15% (iterate over the currently held locks using the array, not the bitvector. Bitvector is not the best data structure to iterate over)
llvm-svn: 205168
2014-03-31 07:23:50 +00:00
Evgeniy Stepanov 6f34082590 [sanitizer] Fix Mac build.
llvm-svn: 205006
2014-03-28 14:01:40 +00:00
Evgeniy Stepanov 86a4d2c32b [sanitizer] Intercept fgetpwent / fgetgrent.
These interceptors require deep unpoisoning of return values.
While at it, we do the same for all other pw/gr interceptors to
reduce dependency on libc implementation details.

llvm-svn: 205004
2014-03-28 13:03:55 +00:00
Evgeniy Stepanov 163ee4efb5 [sanitizer] Intercept setpwent/endpwent.
It's hard to write a reliable test for this code because they
work with unpredictable memory locations. But this change should
fix current failures in getpwent() tests on the sanitizer bots.

llvm-svn: 205002
2014-03-28 11:46:35 +00:00
Evgeniy Stepanov 92bee36b3e [sanitizer] Intercept rand_r.
llvm-svn: 205001
2014-03-28 11:21:45 +00:00