mini d0ffcf396d Add kernel support needed for the KSE-aware libpthread:
- Maintain fpu state across signals.
	- Use ucontext_t's to store KSE thread state.
	- Synthesize state for the UTS upon each upcall, rather than
	  saving and copying a trapframe.
	- Save and restore FPU state properly in ucontext_t's.

Reviewed by:	deischen, julian
Approved by:	-arch
2002-09-16 19:25:08 +00:00
..
2002-03-20 05:48:58 +00:00
2002-03-20 05:48:58 +00:00