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Make use of a call delay slot and avoid a bogus EMPTY. 

Spotted by Juergen Hannken-Illjes, with input from Andrew Doran and
Valeriy E. Ushakov.
This commit is contained in:
martin 2007-02-18 18:30:06 +00:00
parent 7bb9e12996
commit 420d0debfd
1 changed files with 3 additions and 4 deletions
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7
sys/arch/sparc64/sparc64/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.238 2007/02/18 18:25:40 martin Exp $ */
/* $NetBSD: locore.s,v 1.239 2007/02/18 18:30:06 martin Exp $ */
/*
* Copyright (c) 1996-2002 Eduardo Horvath
@ -6792,9 +6792,8 @@ ENTRY_NOPROFILE(idle_switch)
#endif
ENTRY_NOPROFILE(idle)
STPTR %g0, [%l7 + %lo(CURLWP)] ! curlwp = NULL;
call _C_LABEL(sched_unlock_idle) ! Release sched_lock
EMPTY
STPTR %g0, [%l7 + %lo(CURLWP)] ! curlwp = NULL;
idle_nolock:
#if KTR_COMPILE & KTR_PROC
CATR(KTR_TRAP, "idle: pcb %p, idle_u %p",
@ -7043,7 +7042,7 @@ cpu_loadproc:
* scheduler lock, but keep interrupts out.
*/
call _C_LABEL(sched_unlock_idle)
EMPTY
nop
#if KTR_COMPILE & KTR_PROC
CATR(KTR_TRAP, "cpu_switch: %p->%p",