David Xu a30ec4b99c Make sigaltstack as per-threaded, because per-process sigaltstack state ... is useless for threaded programs, multiple threads can not share same stack. The alternative signal stack is private for thread, no lock is needed, the orignal P_ALTSTACK is now moved into td_pflags and renamed to TDP_ALTSTACK. For single thread or Linux clone() based threaded program, there is no semantic changed, because those programs only have one kernel thread in every process. Reviewed by: deischen, dfr		2004-01-03 02:02:26 +00:00
..
central
compile
conf	Fix more spammage with local changes. Didn't look at the diffs before	2003-11-14 20:36:12 +00:00
creator	Assume that unit 0 is the graphics console initialized by syscons, instead	2003-11-11 06:47:00 +00:00
ebus	s=include <ofw/=include <dev/ofw/= to reflect removal of -I$S/dev	2003-08-23 00:11:16 +00:00
fhc
include	GC the unused <machine/kse.h> file.	2003-12-24 00:51:30 +00:00
isa	s=include <ofw/=include <dev/ofw/= to reflect removal of -I$S/dev	2003-08-23 00:11:16 +00:00
pci	Don't confuse NULL with 0.	2003-12-26 14:04:19 +00:00
sbus	Don't confuse NULL with 0.	2003-12-26 14:22:26 +00:00
sparc64	Make sigaltstack as per-threaded, because per-process sigaltstack state	2004-01-03 02:02:26 +00:00