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108 Commits

Author SHA1 Message Date
Dmitry Vyukov d23118c3b2 tsan: optimize vector clock operations 
Make vector clock operations O(1) for several important classes of use cases.
See comments for details.
Below are stats from a large server app, 77% of all clock operations are handled as O(1).

Clock acquire                     :         25983645
  empty clock                     :          6288080
  fast from release-store         :         14917504
  contains my tid                 :          4515743
  repeated (fast)                 :          2141428
  full (slow)                     :          2636633
  acquired something              :          1426863
Clock release                     :          2544216
  resize                          :             6241
  fast1                           :           197693
  fast2                           :          1016293
  fast3                           :             2007
  full (slow)                     :          1797488
  was acquired                    :           709227
  clear tail                      :                1
  last overflow                   :                0
Clock release store               :          3446946
  resize                          :           200516
  fast                            :           469265
  slow                            :          2977681
  clear tail                      :                0
Clock acquire-release             :           820028

llvm-svn: 204656
 2014-03-24 18:54:20 +00:00
Kostya Serebryany 0548c79859 [tsan] add coarse-grained lock around the DeadlockDetector. We can do better than that, but that's a start. 
llvm-svn: 201861
 2014-02-21 15:07:18 +00:00
Dmitry Vyukov dc96a0fada tsan: remove interceptor stats 
They seems to be unused, but cause maintenance pain.

llvm-svn: 200308
 2014-01-28 11:02:04 +00:00
Alexey Samsonov 00cd273c46 Sanitize printf functions. 
Intercept and sanitize arguments passed to printf functions in ASan and TSan
(don't do this in MSan for now). The checks are controlled by runtime flag
(off by default for now).

Patch http://llvm-reviews.chandlerc.com/D2480 by Yuri Gribov!

llvm-svn: 199729
 2014-01-21 11:58:33 +00:00
Evgeniy Stepanov c0378e72d1 [sanitizer] Intercept textdomain. 
Patch by Alexander Taran.

llvm-svn: 196098
 2013-12-02 13:43:26 +00:00
Evgeniy Stepanov b56c5cd95e [sanitizer] Intercept times. 
llvm-svn: 195918
 2013-11-28 14:41:22 +00:00
Evgeniy Stepanov 9c1f8323ae [sanitizer] Intercept iconv. 
llvm-svn: 195917
 2013-11-28 14:14:48 +00:00
Evgeniy Stepanov b76b687628 [sanitizer] Intercept __xpg_strerror_r. 
llvm-svn: 195839
 2013-11-27 12:29:10 +00:00
Evgeniy Stepanov a6b5eec757 [sanitizer] Intercept strptime. 
llvm-svn: 193903
 2013-11-02 01:01:35 +00:00
Evgeniy Stepanov 1cb37c4ee5 [sanitizer] Intercept getline, getdelim. 
llvm-svn: 193730
 2013-10-31 01:17:41 +00:00
Evgeniy Stepanov 0bd1f00ec6 [sanitizer] Intercept drand48_r, lrand48_r. 
llvm-svn: 193655
 2013-10-29 22:25:27 +00:00
Evgeniy Stepanov bf60342d47 [sanitizer] Intercept sincos, remquo, lgamma, lgamma_r. 
llvm-svn: 193645
 2013-10-29 19:49:35 +00:00
Dmitry Vyukov 3e8432ee6c tsan/asan: support pthread_setname_np to set thread names 
llvm-svn: 193602
 2013-10-29 10:30:39 +00:00
Evgeniy Stepanov 94042e1ff2 [sanitizer] Intercept tmpnam, tmpnam_r, tempnam. 
llvm-svn: 193415
 2013-10-25 15:51:48 +00:00
Evgeniy Stepanov 2acb2470f9 [sanitizer] Remove pthread_attr_getstackaddr interceptor. 
The function is deprecated.

llvm-svn: 193409
 2013-10-25 14:27:00 +00:00
Evgeniy Stepanov c2b6cb0747 [sanitizer] Intercept pthread_attr_get*. 
llvm-svn: 193405
 2013-10-25 13:01:31 +00:00
Evgeniy Stepanov be9cdbb58c [sanitizer] Intercept random_r. 
llvm-svn: 193396
 2013-10-25 08:58:13 +00:00
Evgeniy Stepanov f312b480e2 [sanitizer] Intercept shmctl. 
llvm-svn: 193348
 2013-10-24 14:47:34 +00:00
Evgeniy Stepanov 3e6064f9d2 [sanitizer] Intercept ether_* functions. 
llvm-svn: 193241
 2013-10-23 13:57:47 +00:00
Evgeniy Stepanov 0229c09d43 [sanitizer] Intercept initgroups. 
llvm-svn: 193158
 2013-10-22 12:24:48 +00:00
Evgeniy Stepanov 3cb9df042e [sanitizer] Move statfs/fstatfs to common interceptors and add statvfs/fstatvfs. 
llvm-svn: 192965
 2013-10-18 11:14:16 +00:00
Evgeniy Stepanov 70d5abfba2 [sanitizer] Intercept getmntent, getmntent_r. 
llvm-svn: 192959
 2013-10-18 09:41:43 +00:00
Dmitry Vyukov fbb194ff34 tsan: add annotations to ignore synchronization operations 
The annotations are AnnotateIgnoreSyncBegin/End,
may be useful to ignore some infrastructure synchronization
that introduces lots of false negatives.

llvm-svn: 192355
 2013-10-10 15:58:12 +00:00
Dmitry Vyukov e07dc7d1fe tsan: intercept _exit so that we can override exit status 
llvm-svn: 191898
 2013-10-03 14:00:46 +00:00
Dmitry Vyukov 5ba736457c tsan: ignore interceptors coming from specified libraries 
LibIgnore allows to ignore all interceptors called from a particular set
of dynamic libraries. LibIgnore remembers all "called_from_lib" suppressions
from the provided SuppressionContext; finds code ranges for the libraries;
and checks whether the provided PC value belongs to the code ranges.

Also make malloc and friends interceptors use SCOPED_INTERCEPTOR_RAW instead of
SCOPED_TSAN_INTERCEPTOR, because if they are called from an ignored lib,
then must call our internal allocator instead of libc malloc.

llvm-svn: 191897
 2013-10-03 13:37:17 +00:00
Evgeniy Stepanov 01781722b6 [sanitizer] Intercept backtrace, backtrace_symbols. 
llvm-svn: 191516
 2013-09-27 12:40:23 +00:00
Evgeniy Stepanov 8f27f6b549 [sanitizer] A bunch of libc interceptors. 
sigwait
sigwaitinfo
sigtimedwait
sigemptyset
sigfillset
sigpending
sigprocmask

llvm-svn: 191374
 2013-09-25 14:47:43 +00:00
Evgeniy Stepanov 2761ee0409 [sanitizer] Intercept wordexp. 
llvm-svn: 191305
 2013-09-24 14:38:22 +00:00
Dmitry Vyukov 76ec1910ac tsan: ignore malloc/free/strdup when called from libjvm 
llvm-svn: 191153
 2013-09-21 23:44:19 +00:00
Dmitry Vyukov b523b9c8d4 tsan: fix linking of tsan runtime into dynamic libraries 
versioned symbols can not be linked into dynamic library w/o linker script
also simplifies code as side effect

llvm-svn: 191056
 2013-09-19 23:44:51 +00:00
Dmitry Vyukov 3a6c7cea77 tsan: properly intercept pthread_cond functions 
llvm-svn: 189767
 2013-09-02 18:06:28 +00:00
Evgeniy Stepanov 64cace0687 [sanitizer] Intercept poll/ppoll. 
llvm-svn: 188177
 2013-08-12 13:19:53 +00:00
Evgeniy Stepanov 98c39a184e [sanitizer] Intercept getgroups. 
llvm-svn: 188167
 2013-08-12 11:01:40 +00:00
Evgeniy Stepanov 564215d949 [sanitizer] Intercept scandir/scandir64. 
llvm-svn: 187982
 2013-08-08 13:57:15 +00:00
Evgeniy Stepanov 233455cba8 [sanitizer] Intercept strerror and strerror_r. 
llvm-svn: 187978
 2013-08-08 11:44:05 +00:00
Evgeniy Stepanov 04b7bff1fe [sanitizer] Intercept sched_getaffinity. 
Re-applying with a more reliable test case.

llvm-svn: 187876
 2013-08-07 09:10:16 +00:00
David Blaikie 787e2b6499 Revert "[sanitizer] Intercept sched_getaffinity." 
This reverts commit r187788.

The test case is unreliable (as the test may be run in a situation in
which it has no affinity with cpu0). This can be recommitted with a more
reliable test - possibly using CPU_COUNT != 0 instead (I wasn't entirely
sure that a process was guaranteed to have at least one affinity, though
it seems reasonable, or I'd have made the change myself).

llvm-svn: 187841
 2013-08-07 00:37:26 +00:00
Evgeniy Stepanov 9f05e5e533 [sanitizer] Intercept sched_getaffinity. 
llvm-svn: 187788
 2013-08-06 09:29:01 +00:00
Evgeniy Stepanov da9fd25603 [msan] Intercept confstr. 
llvm-svn: 187412
 2013-07-30 12:46:59 +00:00
Dmitry Vyukov 1a0c76fa55 tsan: support sigsuspend() call 
Intercepting it makes it process pending signal before return.

llvm-svn: 186400
 2013-07-16 11:28:04 +00:00
Evgeniy Stepanov 77ef78a0a5 [sanitizer] Intercept realpath and canonicalize_file_name. 
Handle realpath(path, NULL) form.

llvm-svn: 185921
 2013-07-09 09:53:37 +00:00
Evgeniy Stepanov 717e0cd2a7 [sanitizer] Intercept tcgetattr. 
llvm-svn: 185626
 2013-07-04 14:03:31 +00:00
Evgeniy Stepanov db615c186f [sanitizer] More interceptors. 
bcopy
strtoimax, strtoumax
mbstowcs, mbsrtowcs, mbsnrtowcs
wcstombs, wcsrtombs, wcsnrtombs

llvm-svn: 185624
 2013-07-04 13:19:41 +00:00
Evgeniy Stepanov 165d759a6a [sanitizer] Intercept mbtowc, mbrtowc, get_current_dir_name. 
Move getcwd to common interceptors.

llvm-svn: 185424
 2013-07-02 13:34:44 +00:00
Evgeniy Stepanov 1df4dfe87a [sanitizer] Intercept setlocale. 
llvm-svn: 185416
 2013-07-02 09:23:45 +00:00
Evgeniy Stepanov 8a4e24ea8b [sanitizer] Intercept getnameinfo. 
llvm-svn: 185338
 2013-07-01 13:51:31 +00:00
Evgeniy Stepanov dec0f76c14 [sanitizer] Intercept ptrace. 
llvm-svn: 185142
 2013-06-28 11:02:43 +00:00
Evgeniy Stepanov 06d6c25141 [sanitizer] readdir and readdir_r interceptors. 
llvm-svn: 184950
 2013-06-26 15:00:53 +00:00
Evgeniy Stepanov 60d964d4f2 [sanitizer] Intercept sysinfo. 
llvm-svn: 184739
 2013-06-24 14:25:33 +00:00
Evgeniy Stepanov 8fb2c264a2 [sanitizer] Fix TSan build. 
llvm-svn: 184736
 2013-06-24 14:03:13 +00:00