libobjc2

Author	SHA1	Message	Date
theraven	22c20eb930	Removed spurious debugging line. Removed left-over check that stopped GC_Optional modules from enabling the GC.	15 years ago
theraven	444688895a	Updated Makefile to compile correctly again. Added a really ugly hack so that the ABI versions of the three .m files are not checked. This will (hopefully!) prevent the GC being enabled when libobjc is loaded after being compiled with -fobjc-gc.	15 years ago
theraven	929f8f95b4	Improved a few GC functions. Added objc-auto.h header, providing (documented) public interfaces to this functionality.	15 years ago
theraven	ad16172625	First pass at implementing Apple-compatible GC using Boehm. Still needs some tidying, but the following work: - __strong pointers, preventing objects from being freed _ __weak pointers are automatically freed when the last remaining __strong pointer goes away - objc_gc_{retain,release}_np() functions, which can be used to implement CFRetain() and CFRelease() (adds an reference count - the object will not be collected until after its last retain is gone.	15 years ago
theraven	6c7cf4a5a6	Add visibility attributes on all internal functions so that we aren't ever exporting them outside of libobjc.	15 years ago
theraven	7c72069fd9	Rewrote ABI compatibility testing. Makes it easier to define new, incompatible ABIs in future without breaking everything.	16 years ago