[src/trunk]: src/sys/arch/mips/mips only assign to fp when we have a valid lw...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7325a8890fe0
branches:  trunk
changeset: 554800:7325a8890fe0
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Nov 02 08:20:48 2003 +0000

description:
only assign to fp when we have a valid lwp. Thanks simon

diffstat:

 sys/arch/mips/mips/trap.c |  12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)

diffs (49 lines):

diff -r d62a4bb978b7 -r 7325a8890fe0 sys/arch/mips/mips/trap.c
--- a/sys/arch/mips/mips/trap.c Sun Nov 02 08:20:09 2003 +0000
+++ b/sys/arch/mips/mips/trap.c Sun Nov 02 08:20:48 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: trap.c,v 1.184 2003/10/29 23:39:45 christos Exp $      */
+/*     $NetBSD: trap.c,v 1.185 2003/11/02 08:20:48 christos Exp $      */
 
 /*
  * Copyright (c) 1992, 1993
@@ -78,7 +78,7 @@
 
 #include <sys/cdefs.h>                 /* RCS ID & Copyright macro defns */
 
-__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.184 2003/10/29 23:39:45 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.185 2003/11/02 08:20:48 christos Exp $");
 
 #include "opt_cputype.h"       /* which mips CPU levels do we support? */
 #include "opt_ktrace.h"
@@ -217,7 +217,7 @@
        struct proc *p = curproc;
        vm_prot_t ftype;
        ksiginfo_t ksi;
-       struct frame *fp = (struct frame *)l->l_md.md_regs;
+       struct frame *fp;
        extern void fswintrberr(void);
        KSI_INIT_TRAP(&ksi);
 
@@ -245,10 +245,11 @@
                        USERMODE(status) ? "user" : "kernel");
                printf("status=0x%x, cause=0x%x, epc=0x%x, vaddr=0x%x\n",
                        status, cause, opc, vaddr);
-               if (curlwp != NULL)
+               if (curlwp != NULL) {
+                       fp = (struct frame *)l->l_md.md_regs;
                        printf("pid=%d cmd=%s usp=0x%x ",
                            p->p_pid, p->p_comm, (int)fp->f_regs[SP]);
-               else
+               } else
                        printf("curlwp == NULL ");
                printf("ksp=0x%x\n", (int)&status);
 #if defined(DDB)
@@ -581,6 +582,7 @@
                ksi.ksi_code = FPE_FLTOVF; /* XXX */
                break; /* SIGNAL */
        }
+       fp = (struct frame *)l->l_md.md_regs;
        fp->f_regs[CAUSE] = cause;
        fp->f_regs[BADVADDR] = vaddr;
 #ifdef __HAVE_SIGINFO