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343 commits

Author SHA1 Message Date
David Chisnall
48e1b94ef8 Change the order of the retain count and the padding, so the retain count is 
always the word before isa.

Switch to using the correct kind of alignof (the ABI alignment in structures,
not the preferred alignment of the type - this stops us from allocating 4 bytes
of padding on x86-32 where there is no need for any)



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33642 72102866-910b-0410-8b05-ffd578937521
 2011-07-26 20:08:10 +00:00
David Chisnall
40456f7787 Remove the zone pointer from objects. Now we always query the zones to find the relevant pointer. Zones are still supported, but we now optimise for the case where they are not used. 
To disable zone support completely, NSAllocateObject() should ignore the zone and NSDeallocateObject() should skip the zone lookup.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33610 72102866-910b-0410-8b05-ffd578937521
 2011-07-23 12:19:19 +00:00
Wolfgang Lux
f9f1f879f4 Override NSObject +zone to ensure that -zone returns a valid zone 
pointer when it is called on a class object.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33498 72102866-910b-0410-8b05-ffd578937521
 2011-07-10 14:48:26 +00:00
David Chisnall
0618607b3a Use -retainCount instead of NSExtraRefCount() in gs_weak_load() so we can support objects that define a custom retain / release mechanism in weak variables. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33478 72102866-910b-0410-8b05-ffd578937521
 2011-07-07 12:29:54 +00:00
David Chisnall
35f66911a8 Fix typo NS -> GS. We don't actually want NSAllocateObject to call NSAllocateObject... 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33458 72102866-910b-0410-8b05-ffd578937521
 2011-07-04 21:23:26 +00:00
David Chisnall
2a2d7339d1 Switch the order of the reference count and the zone so that the reference count (in reference counted mode) is always immediately in front of the object. Please test this!! 
Opt NSObject into the fast path for ARC.  ARC will now not call the retain / release / autorelease methods on NSObject or any classes that inherit their implementation of these methods from NSObject.  In quick and dirty testing, this gives about a 10-20% speedup.  



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33446 72102866-910b-0410-8b05-ffd578937521
 2011-07-04 11:31:28 +00:00
David Chisnall
38566d1888 Don't call c++ constructors when allocating a class with class_createInstance() - this function calls them itself, and calling them twice is a bad idea. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33436 72102866-910b-0410-8b05-ffd578937521
 2011-07-03 11:04:04 +00:00
David Chisnall
46b12a71e8 Add support to NSObject for automatically zeroing __weak references when using ARC. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33408 72102866-910b-0410-8b05-ffd578937521
 2011-06-29 13:13:15 +00:00
Richard Frith-MacDonald
e84d049078 Add some flexibility 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33355 72102866-910b-0410-8b05-ffd578937521
 2011-06-20 07:33:27 +00:00
Richard Frith-MacDonald
c5c5f18075 fix a couple of leak detection bugs 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33353 72102866-910b-0410-8b05-ffd578937521
 2011-06-20 04:37:20 +00:00
Richard Frith-MacDonald
523366101e more leak cleanup stuff 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33349 72102866-910b-0410-8b05-ffd578937521
 2011-06-19 13:34:17 +00:00
Richard Frith-MacDonald
9831216043 Start stuff for handling cleanup on process exit. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33344 72102866-910b-0410-8b05-ffd578937521
 2011-06-19 09:26:03 +00:00
Richard Frith-MacDonald
6707dd35ad Patches by Sebastian Reitenbach 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33338 72102866-910b-0410-8b05-ffd578937521
 2011-06-18 12:57:30 +00:00
Eric Wasylishen
f2a470d893 tweak and re-enable atomic ops detection 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33179 72102866-910b-0410-8b05-ffd578937521
 2011-05-28 18:05:14 +00:00
David Chisnall
6a4d9fd5ae Fix a few functions that I missed for hybrid mode. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33178 72102866-910b-0410-8b05-ffd578937521
 2011-05-28 15:28:24 +00:00
David Chisnall
4db587f9d6 First pass at hybrid GC mode. This will try use retain-release mode if the collector is not running. Code will run in retain/release mode unless something compiled with -fobjc-gc-only is loaded. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33174 72102866-910b-0410-8b05-ffd578937521
 2011-05-28 14:51:40 +00:00
Niels Grewe
2c301fb937 Disable atomic ops detection for the time being. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33163 72102866-910b-0410-8b05-ffd578937521
 2011-05-28 10:00:22 +00:00
Richard Frith-MacDonald
29063b6928 minor tweaks for atomic inc/dec support 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33142 72102866-910b-0410-8b05-ffd578937521
 2011-05-27 10:05:25 +00:00
Niels Grewe
410ab087fa Attempt to detect the flags needed to enable compiler intrinsics for atomic 
operations.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33134 72102866-910b-0410-8b05-ffd578937521
 2011-05-26 18:37:58 +00:00
Richard Frith-MacDonald
8da9a5ecbb Another attempt to improve atomic inc/dec 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33119 72102866-910b-0410-8b05-ffd578937521
 2011-05-25 22:18:39 +00:00
Richard Frith-MacDonald
ac2b43669d Tweak atomic inc/dec code 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33116 72102866-910b-0410-8b05-ffd578937521
 2011-05-25 16:47:11 +00:00
Richard Frith-MacDonald
eb39994378 partial revert 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33115 72102866-910b-0410-8b05-ffd578937521
 2011-05-25 15:53:17 +00:00
David Chisnall
b08b2d0f34 More tweaks for garbage collection mode, including making NSNotificationCenter use weak pointers (things are never removed if it uses strong pointers because they remove themselves in the -dealloc method, which is never called, and can't remove themselves in the -finalize method because the -finalize method would not be called until after they have been removed - this is consistent with Apple behaviour). 
Gorm now works correctly when built with GC enabled.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33109 72102866-910b-0410-8b05-ffd578937521
 2011-05-25 11:15:08 +00:00
Richard Frith-MacDonald
a439972605 attempt multithreading bugfix 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33107 72102866-910b-0410-8b05-ffd578937521
 2011-05-25 09:20:42 +00:00
David Chisnall
6068e9484c Initial pass at implementing fully Apple-compatible GC. This requires the code to be built with -fobjc-gc or -fobjc-gc-only, and requires a runtime that implements all of the support functions (GNUstep runtime trunk or 1.5 when it's release). 
Currently, there are a few places where we should be calling NSAllocateCollectable() without NSScannedOption, but are actually calling NSZoneMalloc() unless we're in GC mode.  We should not need separate code paths for this anywhere outside NSZone, since NSAllocateCollectable() will work in non-GC mode as well.

A few of the changes should be tweaked slightly so that they do run-time tests.  For example, when compiling with -fobjc-gc, we may be linked against non-GC code, which will use -retain and -release but won't use the memory barriers.  Supporting this nicely is a lot of effort, and I'm not fully convinced it's a good idea.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33104 72102866-910b-0410-8b05-ffd578937521
 2011-05-24 14:43:27 +00:00
Richard Frith-MacDonald
88cd94d250 gc fixup 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32860 72102866-910b-0410-8b05-ffd578937521
 2011-04-14 12:31:51 +00:00
Richard Frith-MacDonald
4d646deb2e try to get C++ constructur/destructor calling working for all. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32781 72102866-910b-0410-8b05-ffd578937521
 2011-04-05 12:13:12 +00:00
Richard Frith-MacDonald
899590c40c tweaks for OpenBSD 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32766 72102866-910b-0410-8b05-ffd578937521
 2011-04-03 09:54:57 +00:00
Richard Frith-MacDonald
7eaee133a3 GC fix for proxy finalisation error. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32764 72102866-910b-0410-8b05-ffd578937521
 2011-04-03 04:25:52 +00:00
Wolfgang Lux
2a50497248 Get -methodSignatureForSelector: right again in case the method is 
called on a class object and the old runtime is used.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32689 72102866-910b-0410-8b05-ffd578937521
 2011-03-22 20:59:06 +00:00
David Chisnall
4ca1911f13 Correctly call C++ constructors / destructors for C++ 'objects' in ObjC++ ivars. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32632 72102866-910b-0410-8b05-ffd578937521
 2011-03-17 15:02:52 +00:00
Richard Frith-MacDonald
84b2f8d5bf mingw fixups 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32541 72102866-910b-0410-8b05-ffd578937521
 2011-03-13 09:41:20 +00:00
Richard Frith-MacDonald
ee7872e6fd mingw block fixups 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32540 72102866-910b-0410-8b05-ffd578937521
 2011-03-13 09:38:37 +00:00
Richard Frith-MacDonald
4b367a26d2 tweak 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32516 72102866-910b-0410-8b05-ffd578937521
 2011-03-09 12:01:04 +00:00
Richard Frith-MacDonald
218582e63c more bsd tweaks 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32485 72102866-910b-0410-8b05-ffd578937521
 2011-03-07 15:34:06 +00:00
Richard Frith-MacDonald
542fb72c06 minor KVO fix 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32432 72102866-910b-0410-8b05-ffd578937521
 2011-03-02 10:52:27 +00:00
Richard Frith-MacDonald
05e186ac65 fix gc heade rlocation. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32388 72102866-910b-0410-8b05-ffd578937521
 2011-02-27 17:53:14 +00:00
Richard Frith-MacDonald
5fbd5d08a7 fix typo 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32387 72102866-910b-0410-8b05-ffd578937521
 2011-02-27 16:14:26 +00:00
Richard Frith-MacDonald
59d4be1265 OSX compat tweaks 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32323 72102866-910b-0410-8b05-ffd578937521
 2011-02-23 11:52:17 +00:00
Richard Frith-MacDonald
61bc059d4a Cleanup ... avoid accessing the 'isa' variable directly. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32247 72102866-910b-0410-8b05-ffd578937521
 2011-02-20 16:21:43 +00:00
Richard Frith-MacDonald
4ed081d410 Replace old code directly referencing class_pointer ivar with calls to the new runtime API treating objects as opaque pointers. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32243 72102866-910b-0410-8b05-ffd578937521
 2011-02-20 12:28:12 +00:00
Richard Frith-MacDonald
0cb48d516b Update for new runtime api 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32241 72102866-910b-0410-8b05-ffd578937521
 2011-02-20 08:32:54 +00:00
Richard Frith-MacDonald
56fe3ad777 Try to make code more robust and comment copiously. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32107 72102866-910b-0410-8b05-ffd578937521
 2011-02-12 16:33:40 +00:00
Richard Frith-MacDonald
f7e7ef50c3 Don't call [NSZombie+class] as the method doesn't exist. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32105 72102866-910b-0410-8b05-ffd578937521
 2011-02-12 15:44:00 +00:00
Richard Frith-MacDonald
11e6f51bf4 remove unused code 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32089 72102866-910b-0410-8b05-ffd578937521
 2011-02-12 06:12:39 +00:00
Richard Frith-MacDonald
594a654252 NSZombie fixups 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32051 72102866-910b-0410-8b05-ffd578937521
 2011-02-11 10:00:00 +00:00
David Chisnall
0239c9b9a5 Use NSClassFromString() to look up NSZombie class. This has two advantages: 
1) Doesn't rely on Apple-incompatible behaviour in the GCC runtime that introduces fun heisenbugs.
2) Doesn't require constructing the dtable for NSZombie if we're not actually using it.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32039 72102866-910b-0410-8b05-ffd578937521
 2011-02-10 18:53:48 +00:00
David Chisnall
0d28d838fd Revert last commit. The actual Apple behaviour is what libobjc2 used to do, not what it does now. It's incredibly ugly, and should not have been allowed: It makes NSObject the superclass of NSObject's metaclass, but does NOT do the same transform for any other classes. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32038 72102866-910b-0410-8b05-ffd578937521
 2011-02-10 18:40:18 +00:00
David Chisnall
a8cd2e588c Make [NSObject -class] return self if self is a class. This is needed for a weird bit of the ObjC spec relating to metaclasses of root classes. The GNUstep runtime behaviour mimics the Apple behaviour, while the GCC runtime mimics the StepStone behaviour, so we get some somewhat irritating differences. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32037 72102866-910b-0410-8b05-ffd578937521
 2011-02-10 18:33:26 +00:00
Richard Frith-MacDonald
bc34d0505f Minor cleanups. 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@32031 72102866-910b-0410-8b05-ffd578937521
 2011-02-10 10:52:54 +00:00