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
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aim	Make sigaltstack as per-threaded, because per-process sigaltstack state	2004-01-03 02:02:26 +00:00
compile	Don't need the .keep_me files. Obrien and I committed past each other.	2001-07-01 23:35:44 +00:00
conf	Note that scbus is required for SCSI, not just "required" in general.	2003-06-08 02:03:02 +00:00
include	GC the unused <machine/kse.h> file.	2003-12-24 00:51:30 +00:00
ofw	Prefer new location of pci include files (which have only been in the	2003-08-22 07:39:05 +00:00
powermac	imac revA-D and beige G3 OpenFirmware uses the "ide" string for	2003-12-10 08:58:48 +00:00
powerpc	Make sigaltstack as per-threaded, because per-process sigaltstack state	2004-01-03 02:02:26 +00:00
psim	ATAng requires <sys/taskqueue.h>	2003-09-22 11:55:02 +00:00