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Set the frame pointer of newly created and function changing LWPs to 0 

for the benefit of DDB.
This commit is contained in:
skrll 2010-03-08 14:52:29 +00:00
parent 50cfd7e754
commit 9ea33502ce
1 changed files with 4 additions and 2 deletions
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6
sys/arch/hppa/hppa/vm_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: vm_machdep.c,v 1.40 2010/01/17 08:50:04 skrll Exp $ */
/* $NetBSD: vm_machdep.c,v 1.41 2010/03/08 14:52:29 skrll Exp $ */
/* $OpenBSD: vm_machdep.c,v 1.64 2008/09/30 18:54:26 miod Exp $ */
@ -29,7 +29,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vm_machdep.c,v 1.40 2010/01/17 08:50:04 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: vm_machdep.c,v 1.41 2010/03/08 14:52:29 skrll Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -159,6 +159,7 @@ cpu_lwp_fork(struct lwp *l1, struct lwp *l2, void *stack, size_t stacksize,
/* lwp_trampoline's frame */
sp += HPPA_FRAME_SIZE;
*(register_t *)(sp) = 0; /* previous frame pointer */
*(register_t *)(sp + HPPA_FRAME_PSP) = osp;
*(register_t *)(sp + HPPA_FRAME_CRP) = (register_t)lwp_trampoline;
@ -196,6 +197,7 @@ cpu_setfunc(struct lwp *l, void (*func)(void *), void *arg)
/* setfunc_trampoline's frame */
sp += HPPA_FRAME_SIZE;
*(register_t *)(sp) = 0; /* previous frame pointer */
*(register_t *)(sp + HPPA_FRAME_PSP) = osp;
*(register_t *)(sp + HPPA_FRAME_CRP) = (register_t)setfunc_trampoline;