fd374bb3dd
Thread safety analysis: turn on checking within lock and unlock functions.
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These checks are enabled with the -Wthread-safety-beta flag.
llvm-svn: 179046
2013-04-08 20:11:11 +00:00
c105ba19e9
Thread safety analysis: Turn on checking for non-scalar types by default.
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These were previously enabled as a "beta" feature, but they have now been
extensively tested.
llvm-svn: 178478
2013-04-01 17:47:37 +00:00
00be69ab5c
Remove the CFGElement "Invalid" state.
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Use Optional<CFG*> where invalid states were needed previously. In the one case
where that's not possible (beginAutomaticObjDtorsInsert) just use a dummy
CFGAutomaticObjDtor.
Thanks for the help from Jordan Rose & discussion/feedback from Ted Kremenek
and Doug Gregor.
Post commit code review feedback on r175796 by Ted Kremenek.
llvm-svn: 175938
2013-02-23 00:29:34 +00:00
2a01f5d426
Replace CFGElement llvm::cast support to be well-defined.
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See r175462 for another example/more details.
llvm-svn: 175796
2013-02-21 20:58:29 +00:00
9fa426a666
Thread-safety analysis: ignore edges from throw expressions in CFG.
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llvm-svn: 172858
2013-01-18 22:15:45 +00:00
f857950d39
Remove useless 'llvm::' qualifier from names like StringRef and others that are
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brought into 'clang' namespace by clang/Basic/LLVM.h
llvm-svn: 172323
2013-01-12 19:30:44 +00:00
0cfa1a5a1d
Thread-safety analysis: check member access on guarded non-primitive types.
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llvm-svn: 169669
2012-12-08 03:46:30 +00:00
f489d2b86c
Thread-safety analysis: check locks on method calls, operator=, and
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copy constructors.
llvm-svn: 169350
2012-12-05 01:20:45 +00:00
5df82f2155
Thread Safety Analysis: refactor to make more methods accept const pointers,
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adjust checkAccess. No change in functionality.
llvm-svn: 169348
2012-12-05 00:52:33 +00:00
3a02247dc9
Sort all of Clang's files under 'lib', and fix up the broken headers
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uncovered.
This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.
I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.
llvm-svn: 169237
2012-12-04 09:13:33 +00:00
ea70eb30a0
Pull the Attr iteration parts out of Attr.h, so including DeclBase.h doesn't pull in all the generated Attr code.
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Required to pull some functions out of line, but this shouldn't have a perf impact.
No functionality change.
llvm-svn: 169092
2012-12-01 15:09:41 +00:00
1fe885614d
Thread-safety analysis: allow attributes on constructors to refer to 'this'.
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llvm-svn: 165339
2012-10-05 22:38:19 +00:00
10958cae09
Thread-safety analysis: better handling of unreachable blocks. Fixes a bug
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where a call to function marked 'noreturn' is followed by unreachable
implicit destructor calls.
llvm-svn: 164394
2012-09-21 17:57:00 +00:00
fcb0ffa622
Thread-safety analysis: fix bug where shared trylock was treated
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as exclusive.
llvm-svn: 164332
2012-09-20 23:14:43 +00:00
b78aeed26e
Thread safety analysis: properly canonicalize calls to virtual methods within
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lock expressions.
llvm-svn: 164324
2012-09-20 22:18:02 +00:00
132f8f6959
Thread-safety analysis: Fix warning when EXCLUSIVE_LOCKS_REQUIRED
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is placed on a function that has no path to the exit block.
llvm-svn: 164244
2012-09-19 19:49:40 +00:00
a15e1b4f63
Thread-safety analysis: fix ICE when EXCLUSIVE_LOCKS_REQUIRED or
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LOCKS_EXCLUDED is used on a method with a name that is is not a simple
identifier.
llvm-svn: 164242
2012-09-19 19:18:29 +00:00
138568b60a
Thread-safety analysis: fix bug in expression matching code.
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llvm-svn: 163656
2012-09-11 23:04:49 +00:00
5ff1644e62
Thread-safety analysis: differentiate between two forms of analysis; a precise
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analysis that may give false positives because it is confused by aliasing, and
a less precise analysis that has fewer false positives, but may have false
negatives. The more precise warnings are enabled by -Wthread-safety-precise.
An additional note clarify the warnings in the precise case.
llvm-svn: 163537
2012-09-10 19:58:23 +00:00
37a8563f36
Ampersand goes with identifier.
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llvm-svn: 163410
2012-09-07 19:49:55 +00:00
78af00f675
Bring buildbots back. Fix scoping issue and coding style from r163397.
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llvm-svn: 163403
2012-09-07 18:44:15 +00:00
a5a00e830a
Thread-safety analysis: Add support for selectively turning off warnings
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within part of a particular method.
llvm-svn: 163397
2012-09-07 17:34:53 +00:00
e637711ae0
Dont cast away const needlessly. Found by gcc48 -Wcast-qual.
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llvm-svn: 163325
2012-09-06 15:59:27 +00:00
93b1b031c1
Thread-safety analysis: bugfix for case where a trylock occurs in an
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expression involving temporaries.
llvm-svn: 163237
2012-09-05 20:01:16 +00:00
f5cf7903d9
Thread-safety analysis: fix handling of LOCK_RETURNED attribute so that the
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latest definition of a function is always used when computing lock expressions.
llvm-svn: 163028
2012-08-31 22:09:53 +00:00
3c3d57bc16
Thread-safety analysis: fix handling of string constants in mutex
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expressions, which should be ignored right now.
llvm-svn: 163026
2012-08-31 21:57:32 +00:00
78094caa56
Fix an assortment of doxygen comment issues found by -Wdocumentation.
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llvm-svn: 162412
2012-08-22 23:50:41 +00:00
0c90c2bc4b
Thread-safety-analysis: adds existential quantification over lock
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expressions. The syntax &MyClass::mutex is interpreted as a
pattern that matches m->mutex for any object m of type MyClass.
llvm-svn: 161691
2012-08-10 20:29:46 +00:00
9b1d72f3e3
Thread safety analysis: refactor to support more sophisticated handling
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of expressions, and better error messages.
llvm-svn: 161690
2012-08-10 20:19:55 +00:00
c9776faa4f
Refactor thread safety analysis to use a different data structure
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to track locksets. This is in preparation for further changes.
llvm-svn: 161680
2012-08-10 18:39:05 +00:00
830885ca64
Fix a typo (the the => the)
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llvm-svn: 160622
2012-07-23 08:59:39 +00:00
868830f727
Thread safety analysis: impove handling of trylock expressions.
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llvm-svn: 160018
2012-07-10 21:47:55 +00:00
09bcefcb6d
Thread-safety analysis: eliminate false positives in case where the definition
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duplicates attributes on the declaration. Also eliminates a false negative in
ReleasableMutexLock. Fixing this bug required some refactoring.
llvm-svn: 159780
2012-07-05 21:16:29 +00:00
3a8d6cff14
Thread safety analysis: improve handling of smart pointers.
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llvm-svn: 159679
2012-07-03 19:47:18 +00:00
0c1da20bf8
Thread Safety Analysis: handle expressions involving temporaries,
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e.g. ExprWithCleanups.
llvm-svn: 159674
2012-07-03 18:25:56 +00:00
ab0d4e6cd8
Thread safety analysis: fixed bug that occurs when very silly people
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use scoped_lockable without putting unlock_function on the
destructor.
llvm-svn: 159609
2012-07-02 22:26:29 +00:00
6e6dbb7618
Thread safety analysis: fixed incorrect error message at the end of a locks_required function.
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llvm-svn: 159607
2012-07-02 22:16:54 +00:00
2a15baf968
Thread safety analysis: don't warn in case of duplicate annotation.
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llvm-svn: 159606
2012-07-02 22:12:12 +00:00
c4a6e51596
Thread Safety Analysis: turn off checking within trylock functions.
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llvm-svn: 159601
2012-07-02 21:59:24 +00:00
d162c91b1a
Thread safety analysis: support release() function on scoped
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lockable objects.
llvm-svn: 159387
2012-06-28 22:42:48 +00:00
49979f2e38
Thread safety analysis: implement lock_returned attribute.
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llvm-svn: 159152
2012-06-25 18:33:18 +00:00
ebbf77016d
Thread safety analysis: fixes a bug in which locksets are not handled
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properly if there is a join point in the control flow graph that involves
a trylock. Also changes the source locations of some warnings to be
more consistent.
llvm-svn: 159008
2012-06-22 17:07:28 +00:00
8c9d9579c4
Refactor the thread safety analysis so that it is easier to do
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path-sensitive analysis like handling of trylock expressions.
llvm-svn: 155137
2012-04-19 16:48:43 +00:00
113bee0536
Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr to
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track whether the referenced declaration comes from an enclosing
local context. I'm amenable to suggestions about the exact meaning
of this bit.
llvm-svn: 152491
2012-03-10 09:33:50 +00:00
e2a3f75a12
Thread safety analysis: expand set of expressions that can be used to denote locks.
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llvm-svn: 151956
2012-03-02 23:36:05 +00:00
a2587ef26d
Thread safety analysis: handle CFG blocks which call functions marked as noreturn.
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llvm-svn: 151944
2012-03-02 22:02:58 +00:00
c2286f6402
Thread-safety analysis: Disable checking inside constructors, destructors, lock, and unlock functions
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llvm-svn: 150701
2012-02-16 17:13:43 +00:00
bc8ffdb68c
Thread-Safety: added support for 'this' as a lock expression.
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llvm-svn: 150700
2012-02-16 17:03:24 +00:00
922866783b
Thread safety analysis:
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* When we detect that a CFG block has inconsistent lock sets, point the
diagnostic at the location where we found the inconsistency, and point a note
at somewhere the inconsistently-locked mutex was locked.
* Fix the wording of the normal (non-loop, non-end-of-function) case of this
diagnostic to not suggest that the mutex is going out of scope.
* Fix the diagnostic emission code to keep a warning and its note together when
sorting the diagnostics into source location order.
llvm-svn: 149669
2012-02-03 04:45:26 +00:00
815b29d7c9
Thread safety analysis: at a CFG join point between a block terminating in a
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'continue' and another block, prefer the lockset from the other block, and
diagnose the 'continue' block as being the end of a loop.
llvm-svn: 149666
2012-02-03 03:30:07 +00:00
DeLesley Hutchins