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95 Commits

Author SHA1 Message Date
Kostya Serebryany 3df5d87da4 [sanitizer] print threads in deadlock report 
llvm-svn: 204461
 2014-03-21 13:00:18 +00:00
Dmitry Vyukov c9e12aa323 tsan: deobfuscate global ctx variable 
llvm-svn: 204327
 2014-03-20 10:36:20 +00:00
Dmitry Vyukov 6e2557769c tsan: use stack depot for goroutine creation stacks (as C++ threads do) 
llvm-svn: 204326
 2014-03-20 10:19:02 +00:00
Dmitry Vyukov 6cfab724ec tsan: refactor deadlock detector 
Introduce DDetector interface between the tool and the DD itself.
It will help to experiment with other DD implementation,
as well as reuse DD in other tools.

llvm-svn: 202485
 2014-02-28 10:48:13 +00:00
Dmitry Vyukov 249cd9af9c tsan: fix compiler warning 
error: address of array 'tctx->name' will always evaluate to 'true'

llvm-svn: 202008
 2014-02-24 08:19:53 +00:00
Kostya Serebryany b51f8d4990 [tsan] when printing a mutex, also print its address. Properly print the deadlock report. 
llvm-svn: 201675
 2014-02-19 14:17:25 +00:00
Evgeniy Stepanov 769d46f373 [sanitizer] Use system unwinder in signal handlers on Android. 
Because of the way Bionic sets up signal stack frames, libc unwinder is unable
to step through it, resulting in broken SEGV stack traces.

Luckily, libcorkscrew.so on Android implements an unwinder that can start with
a signal context, thus sidestepping the issue.

llvm-svn: 201151
 2014-02-11 13:38:57 +00:00
Dmitry Vyukov ce3721057d tsan: remove in_rtl counter 
This is intended to address the following problem.
Episodically we see CHECK-failures when recursive interceptors call back into user code. Effectively we are not "in_rtl" at this point, but it's very complicated and fragile to properly maintain in_rtl property. Instead get rid of it. It was used mostly for sanity CHECKs, which basically never uncover real problems.
Instead introduce ignore_interceptors flag, which is used in very few narrow places to disable recursive interceptors (e.g. during runtime initialization).

llvm-svn: 197979
 2013-12-24 12:55:56 +00:00
Dmitry Vyukov 3238e1c913 tsan: better diagnostics if thread finishes with ignores enabled 
print thread creation stack
and stacks where ignores were enabled.

llvm-svn: 195836
 2013-11-27 11:30:28 +00:00
Alexey Samsonov b3d939902a [Sanitizer] Make StackTrace::Unwind the only public way to unwind a stack trace. 
llvm-svn: 194196
 2013-11-07 07:28:33 +00:00
Dmitry Vyukov 464ebbd67b tsan: move shadow stack from thread descriptors to fixed addresses 
This allows to increase max shadow stack size to 64K,
and reliably catch shadow stack overflows instead of silently
corrupting memory.

llvm-svn: 192797
 2013-10-16 15:35:12 +00:00
Dmitry Vyukov 97f0eae0a5 tsan/msan: add halt_on_error flag 
If halt_on_error==true, program terminates after reporting first error.

llvm-svn: 188279
 2013-08-13 15:33:00 +00:00
Dmitry Vyukov 5cf581a8d4 tsan: consistently use return pc as top frame pc 
always substract 1 from the top pc
this allows to get correct stacks with -O2

llvm-svn: 184112
 2013-06-17 19:57:03 +00:00
Alexey Samsonov 0d7012debb [TSan] use InternalMmapVector to store fired suppressions 
llvm-svn: 183974
 2013-06-14 11:18:58 +00:00
Dmitry Vyukov a8570d38fe tsan: add -Wno-maybe-uninitialized to Go build script 
this is how the rest of the codebase is built

llvm-svn: 183738
 2013-06-11 11:44:43 +00:00
Dmitry Vyukov 315bb0e687 tsan: allows to suppress races on global variables 
llvm-svn: 183672
 2013-06-10 15:38:44 +00:00
Dmitry Vyukov ddb0294dd8 tsan: fix old gcc warnings 
llvm-svn: 183645
 2013-06-10 10:30:19 +00:00
Dmitry Vyukov 5fe8a4f88f tsan: always strip bottom frame in Go reports 
llvm-svn: 183408
 2013-06-06 13:31:35 +00:00
Dmitry Vyukov 9ff1023816 tsan: remove "printing report from signal handler. Can crash or hang" output 
it was added to debug mysterious hangs, but it does not seem to happen anymore
now it only clutter up output

llvm-svn: 182089
 2013-05-17 12:05:44 +00:00
Dmitry Vyukov 56cf378071 tsan: reverse stack trace for failed CHECK's, this is how we print traces in other places 
llvm-svn: 180781
 2013-04-30 11:57:32 +00:00
Dmitry Vyukov 54d9c81082 tsan: fix crash when data race happens on out-of-bounds accesses. 
llvm-svn: 180180
 2013-04-24 09:20:25 +00:00
Alexey Samsonov 734aab4066 [Sanitizer] Use a common mutex to prevent mixing reports from different sanitizers. This fixes PR15516 
llvm-svn: 178853
 2013-04-05 07:30:29 +00:00
Dmitry Vyukov b365d40415 tsan: print matched suppressions if print_suppressions=1 flag is provided 
llvm-svn: 178159
 2013-03-27 17:59:57 +00:00
Dmitry Vyukov ebf63d0095 tsan: better reporting of thread leaks 
1. do not report running threads as leaks
2. aggregate leaked threads by creation stack

llvm-svn: 177647
 2013-03-21 16:55:17 +00:00
Dmitry Vyukov 0851fa8819 tsan: better reporting for races on vptr 
explicitly say "ctor/dtor vs virtual call"

llvm-svn: 177640
 2013-03-21 15:37:39 +00:00
Dmitry Vyukov 48e5d4a2d3 tsan: flush symbolizer cache if not symbolized for more than 5 seconds 
llvm-svn: 177629
 2013-03-21 07:02:36 +00:00
Dmitry Vyukov 79915de6af tsan: move trace header into 0x600000000000 range 
eliminat thread "dead info" altogether

llvm-svn: 177512
 2013-03-20 10:31:53 +00:00
Dmitry Vyukov 4ddd37ba5b tsan: smaller memory block headers (32b->16b) 
llvm-svn: 177312
 2013-03-18 19:47:36 +00:00
Dmitry Vyukov 7cd2025c4d tsan: use StackDepot for thread creation stacks 
llvm-svn: 177261
 2013-03-18 09:02:27 +00:00
Dmitry Vyukov 50160030e1 tsan: fix Go build 
llvm-svn: 177260
 2013-03-18 08:52:46 +00:00
Dmitry Vyukov a221620b2e tsan: use StackDepot in sync object to store creation stacks 
llvm-svn: 177258
 2013-03-18 08:27:47 +00:00
Alexey Samsonov 4f1c8a13d5 [TSan] Use ThreadRegistry::FindThreadContextLocked() to find thread by its stack/tls address. 
llvm-svn: 177248
 2013-03-18 07:02:08 +00:00
Alexey Samsonov 9aecdfe34d [TSan] Switch TSan runtime to use ThreadRegistry class from sanitizer_common 
llvm-svn: 177154
 2013-03-15 13:48:44 +00:00
Dmitry Vyukov e679798315 tsan: fix suppress_java logic 
llvm-svn: 174635
 2013-02-07 17:12:28 +00:00
Dmitry Vyukov e94f4c048e tsan: fix Go build 
llvm-svn: 174622
 2013-02-07 15:26:55 +00:00
Alexey Samsonov 85cc9b655d [TSan] skip multiple internal frames, if necessary 
llvm-svn: 174516
 2013-02-06 16:28:05 +00:00
Kostya Serebryany 21bedab7a1 [tsan] improve FrameIsInternal 
llvm-svn: 174506
 2013-02-06 14:32:16 +00:00
Kostya Serebryany 4fb340d972 [tsan] print error summary line 
llvm-svn: 174505
 2013-02-06 14:24:00 +00:00
Dmitry Vyukov 87c6bb9716 tsan: even if races between atomic and plain memory accesses are turned off (report_atomic_races=0), 
still report races between atomic accesses and free().

llvm-svn: 174175
 2013-02-01 14:41:58 +00:00
Dmitry Vyukov 628df38e95 tsan: say that the memory access is atomic in reports 
llvm-svn: 174168
 2013-02-01 11:10:53 +00:00
Dmitry Vyukov ba4291480d tsan: detect races between plain and atomic memory accesses 
llvm-svn: 174163
 2013-02-01 09:42:06 +00:00
Dmitry Vyukov 019ef67a97 tsan: dump stack on internal assert failure 
llvm-svn: 173799
 2013-01-29 14:20:12 +00:00
Dmitry Vyukov f4f76b1c10 tsan: suppress reports using both stacks 
llvm-svn: 173346
 2013-01-24 13:50:32 +00:00
Dmitry Vyukov c1a1517a37 tsan: describe stack and TLS addresses 
llvm-svn: 172393
 2013-01-14 10:00:03 +00:00
Dmitry Vyukov 89698ecf8a tsan: fix compiler warning 
llvm-svn: 172191
 2013-01-11 11:02:40 +00:00
Dmitry Vyukov 5cb6c62641 tsan: symbolize global variables 
llvm-svn: 172181
 2013-01-11 07:23:51 +00:00
Dmitry Vyukov a2ce1e0055 tsan: warn about reports from signal handlers 
llvm-svn: 170430
 2012-12-18 14:19:24 +00:00
Dmitry Vyukov 6d315cbcc3 tsan: describe "file descriptor" location 
llvm-svn: 170417
 2012-12-18 06:57:34 +00:00
Dmitry Vyukov 09b0dbfaf9 tsan: say what thread had created a thread in reports 
llvm-svn: 170346
 2012-12-17 16:28:15 +00:00
Dmitry Vyukov 72064188bc tsan: add some more functions for java filtering 
llvm-svn: 169501
 2012-12-06 13:20:37 +00:00