linux-2.3 dhd

[David Huggins-Daines]

CVSROOT:	/home/cvs/parisc
Module name:	linux-2.3
Changes by:	dhd	00/07/30 18:35:29

Modified files:
	arch/parisc/kernel: signal.c 

Log message:
- Pass in_syscall up the call chain.
- Use a trampoline (with hopefully adequate I-cache flushing) on the
user stack instead of a static stub.
- Correct an error in sys_rt_sigreturn where the user stack pointer
would not get unwound.
- Hopefully handle the fiddling of the program counter correctly on
the syscall return and rt_sigreturn paths.