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(parent: 4660fe6) | patch
Optimize sigreturn handling
authorDenys Vlasenko <dvlasenk@redhat.com>
Wed, 8 Jun 2011 23:36:29 +0000 (01:36 +0200)
committerDenys Vlasenko <dvlasenk@redhat.com>
Wed, 8 Jun 2011 23:36:29 +0000 (01:36 +0200)
commit56a52984ae5d629160074c4c02445bc069024d0c
treeb30999eeee2db087174027247d8e24292d04f95btree | snapshot
parent4660fe610c2b3707b15b170728a981440e1b54d4commit | diff
Optimize sigreturn handling

* signal.c (sys_sigreturn): move stack pointer variables,
and for SPARC and MIPS, stack pointer and sigmask reading code
into "if (entering) ..." block, because it is only needed
in this branch; load tcp->u_arg[1] into sigmask for display
_after_ we know for sure u_arg[1] does contain valid sigmask
(IOW: perform operation only when we know we will need the result)

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
signal.c diff | blob | history
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