fa1729067c
[compiler-rt] Fix typo in DeadlockDetector (chanding->changing)
2021-11-10 21:51:47 +01:00
1af5a85e48
[sanitizer_common] Remove some old commented-out printf statements, and fixed up the order of includes.
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llvm-svn: 359150
2019-04-24 23:03:32 +00:00
2946cd7010
Update the file headers across all of the LLVM projects in the monorepo
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
2019-01-19 08:50:56 +00:00
84fa6b37f4
tsan: fix deadlock reporting
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currently deadlock detector reports effectively random stacks in report after flush
because it looks at old edges with wrong stacks
llvm-svn: 224519
2014-12-18 14:05:34 +00:00
a8def72dd6
tsan: fix failing CHECK In deadlock detector
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and re-enable the test
llvm-svn: 224518
2014-12-18 14:02:28 +00:00
ec77f619bb
sanitizer_deadlock_detector.h: MSVC 2012 doesn't like compound literals
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llvm-svn: 206199
2014-04-14 17:43:45 +00:00
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)
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llvm-svn: 205168
2014-03-31 07:23:50 +00:00
3df5d87da4
[sanitizer] print threads in deadlock report
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llvm-svn: 204461
2014-03-21 13:00:18 +00:00
78f2e7bd62
[sanitizer] use some c++11 to simplify the code (we can now). Fix one place where a mutex acquisition stack trace was not properly remembered
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llvm-svn: 204237
2014-03-19 14:19:31 +00:00
2483acce21
[sanitizer] when recycling deadlock graph nodes, properly recycle edges
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llvm-svn: 204233
2014-03-19 13:53:37 +00:00
f01c094cdd
[sanitizer] reverse the order of the stack traces printed for every pair of locks in the deadlock report (first print the 'from' node, then print the 'to' node of the deadlock graph)
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llvm-svn: 204043
2014-03-17 14:56:04 +00:00
8976539627
[sanitizer] make the deadlock detector print 2*N stack traces on lock-order-inversion with N locks (i.e. print stack traces for both lock acquisitions in every edge in the graph). More improvements to follow
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llvm-svn: 204042
2014-03-17 14:41:36 +00:00
a0eb97a50b
[sanitizer] allow to store the lock context (stack trace id) with all currently held locks in a thread. This will allow the deadlock detector to provide better warnings (more changes to go)
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llvm-svn: 204039
2014-03-17 12:27:42 +00:00
8ecd7a2171
[sanitizer] fully implement racy fast path in bitset-based deadlock detector
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llvm-svn: 203910
2014-03-14 09:22:01 +00:00
61a0f1c564
[sanitizer] partially implement racy fast path in bitset-based deadlock detector
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llvm-svn: 203904
2014-03-14 08:06:15 +00:00
c067864b6f
[sanitizer] in bitset-based deadlock detector collect edge's stack trace when an edge is added to the graph (in following CLs these stack traces will be added to the report)
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llvm-svn: 203902
2014-03-14 07:09:01 +00:00
65dbf46950
[sanitizer] in bitvector-based deadlock detector split onLock into onLockBefore and onLockAfter hooks
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llvm-svn: 203796
2014-03-13 13:21:30 +00:00
de3f20cf4b
[sanitizer] support recursive rwlocks in bitset-based deadlock detector
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llvm-svn: 203779
2014-03-13 10:26:03 +00:00
eae464f911
[sanitizer] speedup deadlock detector for the case when we acquire the first lock in a thread
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llvm-svn: 202492
2014-02-28 11:56:14 +00:00
2ff42d98fa
[sanitizer] do not acquire a global mutex in deadlock detector when dealing with Unlock (it is essentially a thread-local operation)
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llvm-svn: 202401
2014-02-27 14:38:42 +00:00
11f4f30fa7
[sanitizer] add support for try_lock in deadlock detector
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llvm-svn: 202120
2014-02-25 08:24:15 +00:00
6d54611fd4
[sanitizer] fix epoch handling in deadlock detector (before the fix, we could have had edges from locks in the previous epoch to locks in the current epoch)
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llvm-svn: 202118
2014-02-25 07:34:41 +00:00
37ce26cb16
[sanitizer] when reporting a deadlock also report the lock cycle
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llvm-svn: 201576
2014-02-18 14:56:19 +00:00
bd86a29a2a
[sanitizer] make sure the deadlock detector survives the change of epochs; add a test and a comment
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llvm-svn: 201572
2014-02-18 13:41:49 +00:00
6774f2241d
[sanitizer] add tests for DeadlockDetector, minor fix in onLock
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llvm-svn: 201514
2014-02-17 14:57:49 +00:00
73325589dc
[sanitizer] implement node removal in Deadlock graph
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llvm-svn: 201509
2014-02-17 11:21:52 +00:00
ec68429c5d
[sanitizer] simplify DeadlockDetectorTLS
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llvm-svn: 201505
2014-02-17 08:47:48 +00:00
e233d8618d
[sanitizer] add iterators to bit vectors; make bit vector operations use little stack; add common flag 'detect_deadlocks'
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llvm-svn: 201405
2014-02-14 12:08:23 +00:00
67d419736a
[sanitizer] optimize TwoLevelBitVector::intersectsWith, extend tests, fix a check
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llvm-svn: 201338
2014-02-13 15:45:20 +00:00
07526fb4a0
[sanitizer] address some of the dvyukov's comments on previous commits
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llvm-svn: 201322
2014-02-13 12:39:21 +00:00
f6cb35abb4
[sanitizer] findPath for deadlock detector
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llvm-svn: 201306
2014-02-13 09:52:15 +00:00
5e52d48e3a
[sanitizer] more code for deadlock detector, nothing really works yet (except for small unit tests).
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llvm-svn: 201302
2014-02-13 07:44:51 +00:00
MarcoFalke