Author: theraven
Date: Thu Sep 9 17:06:09 2010
New Revision: 31265
URL: http://svn.gna.org/viewcvs/gnustep?rev=31265&view=rev
Log:
A huge blob of changes to make -base build with libobjc2, without using the old
libobjc2 headers.
Most of these changes involve simply removing direct manipulation of any
runtime structures and replacing them with runtime function calls. For example
class->name becomes class_getName(class) and so on.
libobjc2, like the Apple runtime, the NeXT runtime, and every version of the
Objective-C spec, calls the class pointer in id isa. A few files now have
#define class_pointer isa at the top. This line replaces class_pointer in the
old GNU libobjc headers with isa so either class_pointer or isa can be used for
accessing the class of an object. Note: object_getClass() should be used in
most cases because, in some future version of the runtime, this will skip
things like lock classes and other hidden classes (e.g. KVO classes).
All of the old forwarding stuff has been removed. Most of this stuff followed
convoluted code paths that ended with an exception. A few simply broke in
exciting ways. Hopefully no one has used them for the last ten years or so,
but we can bring them back with some #ifndef stuff if they're really needed by
anyone.
There is currently a bug in configure, which prevents dladdr() from being
detected, so you need to manually tweak config.h to build - I have not fixed
the fall-back code in objc-load.m to work with libobjc2, I just added a new
version that uses the loader's functionality directly.
Although -base now builds, it builds with a lot of warnings. <string.h> is
missing from a lot of files, so memcpy() and strlen() generate implicit
function declaration warnings.
Additionally, libobjc2 does still provide the sel_{get,register}_*() functions,
but they're wrappers around the newer API ones. These are deprecated and are
not exposed in the headers. Although they work, we should be replacing them
with the libobjc2 versions as soon as possible.
This incorporates a patch by Eric.
Modified:
libs/base/trunk/ChangeLog
libs/base/trunk/Headers/Additions/GNUstepBase/DistributedObjects.h
libs/base/trunk/Headers/Foundation/NSInvocation.h
libs/base/trunk/Source/Additions/GSXML.m
libs/base/trunk/Source/GSFFIInvocation.m
libs/base/trunk/Source/GSPrivate.h
libs/base/trunk/Source/NSBundle.m
libs/base/trunk/Source/NSConnection.m
libs/base/trunk/Source/NSCopyObject.m
libs/base/trunk/Source/NSDebug.m
libs/base/trunk/Source/NSDistantObject.m
libs/base/trunk/Source/NSInvocation.m
libs/base/trunk/Source/NSMethodSignature.m
libs/base/trunk/Source/NSObjCRuntime.m
libs/base/trunk/Source/NSObject.m
libs/base/trunk/Source/NSProtocolChecker.m
libs/base/trunk/Source/NSProxy.m
libs/base/trunk/Source/NSSerializer.m
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