Commit Graph

94 Commits

Author SHA1 Message Date
Ted Kremenek 062c14ba24 Remove experimental ownership attributes from Clang.
llvm-svn: 71216
2009-05-08 15:19:25 +00:00
Ted Kremenek ba53fe98e7 More attribute renaming:
- Rename 'ns_returns_owned' -> 'ns_returns_retained'.
- Rename 'cf_returns_owned' -> 'cf_returns_retained'.

llvm-svn: 71182
2009-05-07 21:49:45 +00:00
Ted Kremenek 213ff5a98e Implement attribute 'ns_autorelease'.
llvm-svn: 70990
2009-05-05 18:44:20 +00:00
Ted Kremenek dad8889d62 Enhance ownership attribute tests with functions that use the attributes!
llvm-svn: 70984
2009-05-05 17:46:22 +00:00
Ted Kremenek 94c464ef22 Implement attribute 'cf_returns_owned' (mirrors 'ns_returns_owned').
llvm-svn: 70952
2009-05-05 00:46:09 +00:00
Ted Kremenek de1aa1e4dd Rename ownership attributes:
ns_ownership_returns -> ns_returns_owned
 ns_ownership_retain -> ns_retains
 ns_ownership_release -> ns_releases
 cf_ownership_retain ->  cf_retains
 cf_ownership_release -> cf_releases

llvm-svn: 70949
2009-05-05 00:21:59 +00:00
Ted Kremenek bbec22d2b2 Rename attribute 'ns_ownership_returns' to 'ns_returns_ownership'.
llvm-svn: 70941
2009-05-04 23:52:59 +00:00
Ted Kremenek 0836a19931 Rename attributes 'objc_ownership...' to 'ns_ownership...'.
llvm-svn: 70897
2009-05-04 19:10:19 +00:00
Ted Kremenek 5dbfa3fadd Rename attributes:
'objc_ownership_cfretain' -> 'cf_ownership_retain'
'objc_ownership_cfrelease' -> 'cf_ownership_release'

Motivation: Core Foundation objects can be used in isolation from Objective-C,
and this forces users to reason about the separate semantics of CF objects. More
Sema support pending.

llvm-svn: 70884
2009-05-04 17:29:57 +00:00
Ted Kremenek bc76c72f94 Remove support for ObjCMethodDecl attributes that appear between the
return type and the selector.  This is inconsistent with C functions
(where such attributes would be placed on the return type, not the the
FunctionDecl), and is inconsistent with what people are use to seeing.

llvm-svn: 70878
2009-05-04 17:04:30 +00:00
Ted Kremenek 2ff8a79d27 retain/release checker: Hook up attributes 'objc_ownership_retain' and
'objc_ownership_release' to the effects on receivers.

llvm-svn: 70507
2009-04-30 20:00:31 +00:00
Ted Kremenek 2acb5adac9 Allow attributes 'objc_ownership_retain' and 'objc_ownership_release' to be
applied to ObjCMethodDecls, not just parameters. This allows one to specific
side-effects on the receiver of a message expression. No checker support yet.

llvm-svn: 70505
2009-04-30 19:18:03 +00:00
Ted Kremenek 290fbb1d42 Hook up Sema support for attributes on Objective-C method declarations that
appear between the return type and the selector. This is a separate code path
from regular attribute processing, as we only want to (a) accept only a specific
set of attributes in this place and (b) want to distinguish to clients the
context in which an attribute was added to an ObjCMethodDecl.

Currently, the attribute 'objc_ownership_returns' is the only attribute that
uses this new feature. Shortly I will add a warning for 'objc_ownership_returns'
to be placed at the end of a method declaration.

llvm-svn: 70504
2009-04-30 18:41:06 +00:00
Ted Kremenek 8c06515f2b Add parsing support in an Objective-C method declaration for attributes between
the return type and selector. Haven't hooked this up to Sema yet.

llvm-svn: 70501
2009-04-30 17:55:29 +00:00
Ted Kremenek 223a7d5445 retain/release checker: When determining whether an analyzed method can return
an owned object, consult its summary instead of inspecting the selector. This
picks up annotations, and is just more general.

llvm-svn: 70429
2009-04-29 23:03:22 +00:00
Ted Kremenek 6bd78709f2 retain/release checker: Hoist code for bug reports above transfer function logic
(those diffs are just code moving) and move the logic for "return of owned
object" leak reporting to EvalReturnStmt.

llvm-svn: 70399
2009-04-29 18:50:19 +00:00
Ted Kremenek ebc6d91f4e Add regression test case provided by <rdar://problem/6833332>.
llvm-svn: 70350
2009-04-29 00:41:31 +00:00
Ted Kremenek 89c3861061 Improve retain/release test cases for ownership attributes.
llvm-svn: 70327
2009-04-28 21:43:40 +00:00
Ted Kremenek 84bfa2c2dc Add two new checker-specific attributes: 'objc_ownership_release' and
'objc_ownership_cfrelease'. These are the 'release' equivalents of
'objc_ownership_retain' and 'objc_ownership_cfretain' respectively.

llvm-svn: 70235
2009-04-27 19:36:56 +00:00
Ted Kremenek ebbef7d0d3 Add new checker-specific attribute 'objc_ownership_cfretain'. This is the same
as 'objc_ownership_cfretain' except that the method acts like a CFRetain instead
of a [... retain] (important in GC modes). Checker support is wired up, but
currently only for Objective-C message expressions (not function calls).

llvm-svn: 70218
2009-04-27 18:27:22 +00:00
Ted Kremenek e75de95408 Hook up attribute 'objc_ownership_retain' to the analyzer. This attribute allows
users to specify that a method's argument is visibly retained (reference count
incremented).

llvm-svn: 70008
2009-04-25 01:21:50 +00:00
Ted Kremenek 2cfd264636 Add new checker-specific attribute 'objc_ownership_retain'. This isn't hooked up
to the checker yet, but essentially it allows a user to specify that an
Objective-C method or C function increments the reference count of a passed
object.

llvm-svn: 70005
2009-04-25 00:17:17 +00:00
Ted Kremenek b97d093e16 Hook up __attribute__((objc_ownership_returns)) to the retain/release checker.
llvm-svn: 70002
2009-04-24 23:32:32 +00:00
Ted Kremenek 44e662cd4f Add new checker-specific attribute 'objc_ownership_returns'. This isn't hooked
up to the checker yet, but essentially it allows a user to specify that an
Objective-C method or C function returns an owned an Objective-C object.

llvm-svn: 70001
2009-04-24 23:09:54 +00:00
Ted Kremenek 0a1f9c423f retain/release checker: Don't call isTrackedObject() with the canonical type.
This was preventing the checker from tracking return objects referenced by 'id'.

llvm-svn: 69922
2009-04-23 21:25:57 +00:00
Ted Kremenek d6ed5b7376 Temporarily remove expected warnings.
llvm-svn: 69917
2009-04-23 20:03:52 +00:00
Ted Kremenek f27110fc27 Per discussions with Ken Ferry and Paul Marks (<rdar://problem/6815234>) greatly
extend the number of objects tracked by the retain/release checker by assuming
that all class and instance methods should follow Cocoa object "getter" and
"alloc/new" conventions.

llvm-svn: 69908
2009-04-23 19:11:35 +00:00
Ted Kremenek 25db1f3ff1 Add test case.
llvm-svn: 68505
2009-04-07 05:33:18 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc.
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
2009-03-24 02:24:46 +00:00
Ted Kremenek b294d196b3 analyzer: Provide temporary workaround for false positive reported by
<rdar://problem/6704930> involving SimpleConstraintManager not reasoning well
about symbolic constraint values involving arithmetic operators.

llvm-svn: 67534
2009-03-23 17:10:25 +00:00
Ted Kremenek 67a3bb7af7 Add test cases for PR 3820.
llvm-svn: 67327
2009-03-19 19:50:58 +00:00
Ted Kremenek 340fd2dd6e Fix PR 3677 [retain checker]: custom 'allocWithZone' methods should be allowed
to return an owning pointer.

llvm-svn: 66934
2009-03-13 20:27:06 +00:00
Ted Kremenek 0b891a343a retain/release checker: Allow allocations to fail by returning nil.
llvm-svn: 66487
2009-03-09 22:46:49 +00:00
Ted Kremenek 3987bbee34 Add test case for <rdar://problem/6659160>.
llvm-svn: 66483
2009-03-09 22:28:18 +00:00
Ted Kremenek a7ec605dbd Update test case: objects stored to self.ivar are not tracked.
llvm-svn: 66168
2009-03-05 18:15:02 +00:00
Ted Kremenek bea465aefb Update test case to include a leak that occurs at the place of allocation.
llvm-svn: 65048
2009-02-19 18:20:28 +00:00
Ted Kremenek b535181199 Static Analyzer driver/options (partial) cleanup:
- Move all analyzer options logic to AnalysisConsumer.cpp.
- Unified specification of stores/constraints/output to be:
   -analyzer-output=...
   -analyzer-store=...
   -analyzer-constraints=...
  instead of -analyzer-range-constraints, -analyzer-store-basic, etc.
- Updated drivers (ccc-analyzer, scan-builds, new ccc) to obey this new
  interface
- Updated test cases to conform to new driver options

llvm-svn: 64737
2009-02-17 04:27:41 +00:00
Ted Kremenek fc5d067ea0 Overhaul BugReporter interface and implementation. The new interface cleans up
the ownership of BugTypes and BugReports. Now BugReports are owned by BugTypes,
and BugTypes are owned by the BugReporter object.

The major functionality change in this patch is that reports are not immediately
emitted by a call to BugReporter::EmitWarning (now called EmitReport), but
instead of queued up in report "equivalence classes". When
BugReporter::FlushReports() is called, it emits one diagnostic per report
equivalence class. This provides a nice cleanup with the caching of reports as
well as enables the BugReporter engine to select the "best" path for reporting a
path-sensitive bug based on all the locations in the ExplodedGraph that the same
bug could occur.

Along with this patch, Leaks are now coalesced into a common equivalence class
by their allocation site, and the "summary" diagnostic for leaks now reports the
allocation site as the location of the bug (this may later be augmented to also
provide an example location where the leak occurs).

llvm-svn: 63796
2009-02-04 23:49:09 +00:00
Ted Kremenek f675864e3c Add autorelease test case.
llvm-svn: 63237
2009-01-28 21:20:48 +00:00
Ted Kremenek f08ac278ed More hacking on static analyzer diagnostics. When emitting summary diagnostics the code paths for diagnostics involving paths or single locations are now unified. This patch also constifies many arguments/methods that are touched by this logic, leading to a nice overall code cleanup.
llvm-svn: 62903
2009-01-24 00:55:43 +00:00
Ted Kremenek fe32cc0ba6 Get RegionStore to work with the retain/release checker and its test cases.
Because the RegionStore can reason about values beyond the reasoning power of BasicStore, this patch splits some of the test cases for the retain/release checker to have versions that are handled by RegionStore (more warnings) and BasicStore (less warnings).

llvm-svn: 62667
2009-01-21 06:57:53 +00:00
Daniel Dunbar 34fc92fdc2 Add -analyze action to run static analyzer, instead of inferring from
individual checker options.

llvm-svn: 62634
2009-01-20 23:17:32 +00:00
Ted Kremenek 86afde337d Fix PR 3337 [retain/release checker]: Handle FunctionDecl's declared using typedefs.
llvm-svn: 62331
2009-01-16 18:40:33 +00:00
Ted Kremenek 7e90422e95 retain/release checker:
- Refactor a bunch of logic in the retain/release checker, making it more
  condense and easier to read.
- Add support for "Create" methods in the DiskArbitration framework

retain/release tests:
- Rename CFDate.m to retain-release.m, and move test from CFString.c to
  retain-release.m
- Add DiskArbitration framework tests cases.
- Add/refine and few more retain/release GC test cases.

llvm-svn: 62106
2009-01-12 21:45:02 +00:00