df115d9bf3
The release_capability, release_shared_capability and release_generic_capability functions are now functionally distinct for capability analysis. The unlock_function attribute maps directly to release_generic_capability.
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llvm-svn: 204469
2014-03-21 14:48:48 +00:00
18d85aed39
Replacing the exclusive_lock_function, shared_lock_function and unlock_function attributes with the acquire_capability and release_capability attributes. The old spellings will continue to work, but the underlying semantic attributes have been replaced.
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Downgraded the capability diagnostics from error to warning to match the desired behavior, and updated the existing test cases.
llvm-svn: 204350
2014-03-20 16:02:49 +00:00
d1c9b37db9
Thread safety analysis: move smart pointer checks from -Wthread-safety-beta
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to -Wthread-safety.
llvm-svn: 203510
2014-03-10 23:03:49 +00:00
be22bcb180
[C++11] Replacing DeclBase iterators specific_attr_begin() and specific_attr_end() with iterator_range specific_attrs(). Updating all of the usages of the iterators with range-based for loops.
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llvm-svn: 203474
2014-03-10 17:08:28 +00:00
69bb592ad1
Based on usage, the NamedDecl is always set when constructing a CallingContext, but none of the other optional parameters are. Removing the optional parameters, and making the NamedDecl required.
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No functional changes intended.
llvm-svn: 203149
2014-03-06 19:37:24 +00:00
19842c437a
Refactored to use a simple helper function that wraps the logic of creating an SExprNode and returning the position in which it was inserted.
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No functional change intended.
llvm-svn: 203148
2014-03-06 19:25:11 +00:00
cea2609b59
Very minor simplification and typo correction; no functional changes intended.
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llvm-svn: 203144
2014-03-06 19:10:16 +00:00
efe348ec44
DeLesley Hutchins (who wrote the original thread-safety attribute functionality) and I have agreed to start migrating from lock-specific terminology to "capability"-specific terminology. This opens the door for future threading-related analysis passes so that a common nomenclature can be used.
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The following attributes have been (silently) deprecated, with their replacements listed:
lockable => capability
exclusive_locks_required => requires_capability
shared_locks_required => requires_shared_capability
locks_excluded => requires_capability
There are no functional changes intended.
llvm-svn: 201585
2014-02-18 17:36:50 +00:00
ee58e6d6d2
Switching getAttrs calls over to using a specific_attr_iterator. No functional changes intended.
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llvm-svn: 197681
2013-12-19 15:35:31 +00:00
9ead1243a5
Replacing calls to getAttr with calls to hasAttr for clarity. No functional change intended -- this only replaces Boolean uses of getAttr.
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llvm-svn: 197648
2013-12-19 02:39:40 +00:00
f6a24ce40f
Fix a tranche of comment, test and doc typos
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llvm-svn: 196510
2013-12-05 16:25:25 +00:00
d473363876
Correct hyphenations in comments and assert messages
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This patch tries to avoid unrelated changes other than fixing a few
hyphen-related ambiguities in nearby lines.
llvm-svn: 196466
2013-12-05 04:47:09 +00:00
39b804f8a4
Thread safety analysis: fix ICE due to missing null check on dyn_cast.
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llvm-svn: 195777
2013-11-26 19:45:21 +00:00
e73d6b605c
Thread-safety analysis: check guarded_by and pt_guarded_by on array access.
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Currently supported only with -Wthread-safety-beta.
llvm-svn: 194275
2013-11-08 19:42:01 +00:00
05b7b37021
Thread safety analysis: minor bugfix to smart pointer handling, and expanded
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test case.
llvm-svn: 194157
2013-11-06 18:40:01 +00:00
5ede5cc9ba
Thread safety analysis: check pt_guarded_by attribute when calling -> and *
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on smart pointers. -Wthread-safety-beta only.
llvm-svn: 194103
2013-11-05 23:09:56 +00:00
7b56f6c3c2
Simplify some implementations of get*Decl.
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* NamedDecl and CXXMethodDecl were missing getMostRecentDecl.
* The const version can just forward to the non const.
* getMostRecentDecl can use cast instead of cast_or_null.
This then removes some casts from the callers.
llvm-svn: 193039
2013-10-19 16:55:03 +00:00
9f5193cf61
Thread Safety Analysis: fix bug when using TryLock with && and || expressions.
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llvm-svn: 188505
2013-08-15 23:06:33 +00:00
16b4ff5c4d
Thread safety analysis: move warnings within lock/unlock functions out of beta.
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llvm-svn: 188465
2013-08-15 15:31:25 +00:00
fcd5b7e76e
Updating a link in the comments; no functional change.
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llvm-svn: 185013
2013-06-26 19:17:19 +00:00
3b2c66bbda
Thread safety analysis: fix use after free bug reported by Evgeniy Stepanov.
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llvm-svn: 182305
2013-05-20 17:57:55 +00:00
b682431775
Thread safety analysis: add two new attributes to the thread safety analysis:
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assert_exclusive_lock and assert_shared_lock. These attributes are used to
mark functions that dynamically check (i.e. assert) that a lock is held.
llvm-svn: 182170
2013-05-17 23:02:59 +00:00
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
Aaron Ballman