Commit Graph

69 Commits

Author SHA1 Message Date
DeLesley Hutchins 0cfa1a5a1d Thread-safety analysis: check member access on guarded non-primitive types.
llvm-svn: 169669
2012-12-08 03:46:30 +00:00
DeLesley Hutchins f489d2b86c Thread-safety analysis: check locks on method calls, operator=, and
copy constructors.

llvm-svn: 169350
2012-12-05 01:20:45 +00:00
DeLesley Hutchins 5df82f2155 Thread Safety Analysis: refactor to make more methods accept const pointers,
adjust checkAccess.  No change in functionality.

llvm-svn: 169348
2012-12-05 00:52:33 +00:00
Chandler Carruth 3a02247dc9 Sort all of Clang's files under 'lib', and fix up the broken headers
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
Benjamin Kramer ea70eb30a0 Pull the Attr iteration parts out of Attr.h, so including DeclBase.h doesn't pull in all the generated Attr code.
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
DeLesley Hutchins 1fe885614d Thread-safety analysis: allow attributes on constructors to refer to 'this'.
llvm-svn: 165339
2012-10-05 22:38:19 +00:00
DeLesley Hutchins 10958cae09 Thread-safety analysis: better handling of unreachable blocks. Fixes a bug
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
DeLesley Hutchins fcb0ffa622 Thread-safety analysis: fix bug where shared trylock was treated
as exclusive.

llvm-svn: 164332
2012-09-20 23:14:43 +00:00
DeLesley Hutchins b78aeed26e Thread safety analysis: properly canonicalize calls to virtual methods within
lock expressions.

llvm-svn: 164324
2012-09-20 22:18:02 +00:00
DeLesley Hutchins 132f8f6959 Thread-safety analysis: Fix warning when EXCLUSIVE_LOCKS_REQUIRED
is placed on a function that has no path to the exit block.

llvm-svn: 164244
2012-09-19 19:49:40 +00:00
DeLesley Hutchins a15e1b4f63 Thread-safety analysis: fix ICE when EXCLUSIVE_LOCKS_REQUIRED or
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
DeLesley Hutchins 138568b60a Thread-safety analysis: fix bug in expression matching code.
llvm-svn: 163656
2012-09-11 23:04:49 +00:00
DeLesley Hutchins 5ff1644e62 Thread-safety analysis: differentiate between two forms of analysis; a precise
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
Chad Rosier 37a8563f36 Ampersand goes with identifier.
llvm-svn: 163410
2012-09-07 19:49:55 +00:00
Chad Rosier 78af00f675 Bring buildbots back. Fix scoping issue and coding style from r163397.
llvm-svn: 163403
2012-09-07 18:44:15 +00:00
DeLesley Hutchins a5a00e830a Thread-safety analysis: Add support for selectively turning off warnings
within part of a particular method.

llvm-svn: 163397
2012-09-07 17:34:53 +00:00
Roman Divacky e637711ae0 Dont cast away const needlessly. Found by gcc48 -Wcast-qual.
llvm-svn: 163325
2012-09-06 15:59:27 +00:00
DeLesley Hutchins 93b1b031c1 Thread-safety analysis: bugfix for case where a trylock occurs in an
expression involving temporaries.

llvm-svn: 163237
2012-09-05 20:01:16 +00:00
DeLesley Hutchins f5cf7903d9 Thread-safety analysis: fix handling of LOCK_RETURNED attribute so that the
latest definition of a function is always used when computing lock expressions.

llvm-svn: 163028
2012-08-31 22:09:53 +00:00
DeLesley Hutchins 3c3d57bc16 Thread-safety analysis: fix handling of string constants in mutex
expressions, which should be ignored right now.

llvm-svn: 163026
2012-08-31 21:57:32 +00:00
Ted Kremenek 78094caa56 Fix an assortment of doxygen comment issues found by -Wdocumentation.
llvm-svn: 162412
2012-08-22 23:50:41 +00:00
DeLesley Hutchins 0c90c2bc4b Thread-safety-analysis: adds existential quantification over lock
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
DeLesley Hutchins 9b1d72f3e3 Thread safety analysis: refactor to support more sophisticated handling
of expressions, and better error messages.

llvm-svn: 161690
2012-08-10 20:19:55 +00:00
DeLesley Hutchins c9776faa4f Refactor thread safety analysis to use a different data structure
to track locksets.  This is in preparation for further changes.

llvm-svn: 161680
2012-08-10 18:39:05 +00:00
Sylvestre Ledru 830885ca64 Fix a typo (the the => the)
llvm-svn: 160622
2012-07-23 08:59:39 +00:00
DeLesley Hutchins 868830f727 Thread safety analysis: impove handling of trylock expressions.
llvm-svn: 160018
2012-07-10 21:47:55 +00:00
DeLesley Hutchins 09bcefcb6d Thread-safety analysis: eliminate false positives in case where the definition
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
DeLesley Hutchins 3a8d6cff14 Thread safety analysis: improve handling of smart pointers.
llvm-svn: 159679
2012-07-03 19:47:18 +00:00
DeLesley Hutchins 0c1da20bf8 Thread Safety Analysis: handle expressions involving temporaries,
e.g. ExprWithCleanups.

llvm-svn: 159674
2012-07-03 18:25:56 +00:00
DeLesley Hutchins ab0d4e6cd8 Thread safety analysis: fixed bug that occurs when very silly people
use scoped_lockable without putting unlock_function on the
destructor.

llvm-svn: 159609
2012-07-02 22:26:29 +00:00
DeLesley Hutchins 6e6dbb7618 Thread safety analysis: fixed incorrect error message at the end of a locks_required function.
llvm-svn: 159607
2012-07-02 22:16:54 +00:00
DeLesley Hutchins 2a15baf968 Thread safety analysis: don't warn in case of duplicate annotation.
llvm-svn: 159606
2012-07-02 22:12:12 +00:00
DeLesley Hutchins c4a6e51596 Thread Safety Analysis: turn off checking within trylock functions.
llvm-svn: 159601
2012-07-02 21:59:24 +00:00
DeLesley Hutchins d162c91b1a Thread safety analysis: support release() function on scoped
lockable objects.

llvm-svn: 159387
2012-06-28 22:42:48 +00:00
DeLesley Hutchins 49979f2e38 Thread safety analysis: implement lock_returned attribute.
llvm-svn: 159152
2012-06-25 18:33:18 +00:00
DeLesley Hutchins ebbf77016d Thread safety analysis: fixes a bug in which locksets are not handled
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
DeLesley Hutchins 8c9d9579c4 Refactor the thread safety analysis so that it is easier to do
path-sensitive analysis like handling of trylock expressions.

llvm-svn: 155137
2012-04-19 16:48:43 +00:00
John McCall 113bee0536 Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr to
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
DeLesley Hutchins e2a3f75a12 Thread safety analysis: expand set of expressions that can be used to denote locks.
llvm-svn: 151956
2012-03-02 23:36:05 +00:00
DeLesley Hutchins a2587ef26d Thread safety analysis: handle CFG blocks which call functions marked as noreturn.
llvm-svn: 151944
2012-03-02 22:02:58 +00:00
DeLesley Hutchins c2286f6402 Thread-safety analysis: Disable checking inside constructors, destructors, lock, and unlock functions
llvm-svn: 150701
2012-02-16 17:13:43 +00:00
DeLesley Hutchins bc8ffdb68c Thread-Safety: added support for 'this' as a lock expression.
llvm-svn: 150700
2012-02-16 17:03:24 +00:00
Richard Smith 922866783b Thread safety analysis:
* 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
Richard Smith 815b29d7c9 Thread safety analysis: at a CFG join point between a block terminating in a
'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 68f7b1a647 Handle thread safety attributes on functions with separate definitions and declarations.
llvm-svn: 148599
2012-01-20 23:24:41 +00:00
DeLesley Hutchins 9d53033de6 Thread safety analysis: added support for trylock attribute.
llvm-svn: 147672
2012-01-06 19:16:50 +00:00
DeLesley Hutchins 9b7022e570 Added LocalVariableMap
llvm-svn: 147670
2012-01-06 18:36:09 +00:00
DeLesley Hutchins 714296cb31 Support for thread safety attributes on functions
llvm-svn: 147331
2011-12-29 00:56:48 +00:00
DeLesley Hutchins f7faa6a69b This patch extends thread safety analysis with support for the scoped_lockable attribute.
llvm-svn: 146174
2011-12-08 20:23:06 +00:00
Ted Kremenek 81ce1c8a99 Rename AnalysisContext to AnalysisDeclContext. Not only is this name more accurate, but it frees up the name AnalysisContext for other uses.
llvm-svn: 142782
2011-10-24 01:32:45 +00:00