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compat_sigprocmask13.S revision 1.1 
      1 /*	$NetBSD: compat_sigprocmask13.S,v 1.1 2006/02/18 00:21:28 matt Exp $	*/
      2 
      3 #include "SYS.h"
      4 
      5 WARN_REFERENCES(sigprocmask, \
      6     "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference")
      7 
      8 /*
      9  * sigprocmask(int how, sigset_t *set, sigset_t *oset)
     10  */
     11 ENTRY(sigprocmask)
     12 	or.	%r4,%r4,%r4	# set == NULL?
     13 	li	%r6,1		# how = SIG_BLOCK
     14 	beq	1f
     15 	lwz	%r4,0(%r4)	# if not, replace it in r4 with *set
     16 	mr	%r6,%r3
     17 1:
     18 	mr	%r3,%r6		# ... using sigprocmask(SIG_BLOCK)
     19 	li	%r0,SYS_compat_13_sigprocmask13
     20 	sc
     21 	bso	3f
     22 	or.	%r5,%r5,%r5	# check to see of oset requested
     23 	beq	2f		# if oset != NULL,
     24 	stw	%r3,0(%r5)	#    *oset = oldmask
     25 2:
     26 	li	%r3,0
     27 	blr			# in any case, return 0
     28 3:
     29 	b	PIC_PLT(_C_LABEL(__cerror))
     30