freebsd-skq/sys/pc98
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
..
apm Merge PC98 support. 2003-03-25 05:19:18 +00:00
cbus Add detach method. 2003-12-28 12:25:49 +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 Garbage-collected CLK_USE_TSC_CALIBRATION. 2003-12-30 07:28:54 +00:00
i386 Make sigaltstack as per-threaded, because per-process sigaltstack state 2004-01-03 02:02:26 +00:00
pc98 Make sigaltstack as per-threaded, because per-process sigaltstack state 2004-01-03 02:02:26 +00:00