mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-27 03:49:03 +08:00
20 lines
893 B
Plaintext
20 lines
893 B
Plaintext
|
While the GC should work on MacOS X Server, MacOS X and Darwin, I only tested
|
||
|
it on MacOS X Server.
|
||
|
I've added a PPC assembly version of GC_push_regs(), thus the setjmp() hack is
|
||
|
no longer necessary. Incremental collection is supported via mprotect/signal.
|
||
|
The current solution isn't really optimal because the signal handler must decode
|
||
|
the faulting PPC machine instruction in order to find the correct heap address.
|
||
|
Further, it must poke around in the register state which the kernel saved away
|
||
|
in some obscure register state structure before it calls the signal handler -
|
||
|
needless to say the layout of this structure is no where documented.
|
||
|
Threads and dynamic libraries are not yet supported (adding dynamic library
|
||
|
support via the low-level dyld API shouldn't be that hard).
|
||
|
|
||
|
The original MacOS X port was brought to you by Andrew Stone.
|
||
|
|
||
|
|
||
|
June, 1 2000
|
||
|
|
||
|
Dietmar Planitzer
|
||
|
dave.pl@ping.at
|