[src/trunk]: src/sys/arch/powerpc/powerpc Dump fp regs into core file.

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

details:   https://anonhg.NetBSD.org/src/rev/9b85ef2ea134
branches:  trunk
changeset: 487213:9b85ef2ea134
user:      tsubai <tsubai%NetBSD.org@localhost>
date:      Sun Jun 04 12:12:13 2000 +0000

description:
Dump fp regs into core file.

diffstat:

 sys/arch/powerpc/powerpc/vm_machdep.c |  35 +++++++++++++++++++++--------------
 1 files changed, 21 insertions(+), 14 deletions(-)

diffs (132 lines):

diff -r 6f153b0c0f9a -r 9b85ef2ea134 sys/arch/powerpc/powerpc/vm_machdep.c
--- a/sys/arch/powerpc/powerpc/vm_machdep.c     Sun Jun 04 12:06:44 2000 +0000
+++ b/sys/arch/powerpc/powerpc/vm_machdep.c     Sun Jun 04 12:12:13 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vm_machdep.c,v 1.17 2000/05/28 05:49:03 thorpej Exp $  */
+/*     $NetBSD: vm_machdep.c,v 1.18 2000/06/04 12:12:13 tsubai Exp $   */
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -49,7 +49,7 @@
 /*
  * Finish a fork operation, with process p2 nearly set up.
  * Copy and update the pcb and trap frame, making the child ready to run.
- * 
+ *
  * Rig the child's kernel stack so that it will start out in
  * fork_trampoline() and call child_return() with p2 as an
  * argument. This causes the newly-created child process to go
@@ -90,7 +90,7 @@
        if (p1 == fpuproc)
                save_fpu(p1);
        *pcb = p1->p_addr->u_pcb;
-       
+
        pcb->pcb_pm = p2->p_vmspace->vm_map.pmap;
        (void) pmap_extract(pmap_kernel(), (vaddr_t)pcb->pcb_pm,
            (paddr_t *)&pcb->pcb_pmreal);
@@ -109,13 +109,13 @@
                tf->fixreg[1] = (register_t)stack + stacksize;
 
        stktop2 = (caddr_t)((u_long)stktop2 & ~15);     /* Align stack pointer */
-       
+
        /*
         * There happens to be a callframe, too.
         */
        cf = (struct callframe *)stktop2;
        cf->lr = (int)fork_trampoline;
-       
+
        /*
         * Below the trap frame, there is another call frame:
         */
@@ -123,7 +123,7 @@
        cf = (struct callframe *)stktop2;
        cf->r31 = (register_t)func;
        cf->r30 = (register_t)arg;
-       
+
        /*
         * Below that, we allocate the switch frame:
         */
@@ -141,7 +141,7 @@
        struct proc *p;
 {
        struct pcb *pcb = &p->p_addr->u_pcb;
-       
+
        (void) pmap_extract(pmap_kernel(), (vaddr_t)pcb->pcb_pm,
            (paddr_t *)&pcb->pcb_pmreal);
 }
@@ -156,7 +156,7 @@
 {
        paddr_t pa;
        vaddr_t va;
-       
+
        for (va = (vaddr_t)from; size > 0; size -= NBPG) {
                (void) pmap_extract(pmap_kernel(), va, &pa);
                pmap_remove(pmap_kernel(), va, va + NBPG);
@@ -182,7 +182,7 @@
 {
        if (p == fpuproc)       /* release the fpu */
                fpuproc = 0;
-       
+
        switchexit(p);
 }
 
@@ -199,8 +199,9 @@
        struct coreseg cseg;
        struct md_coredump md_core;
        struct trapframe *tf;
+       struct pcb *pcb = &p->p_addr->u_pcb;
        int error;
-       
+
        CORE_SETMAGIC(*chdr, COREMAGIC, MID_POWERPC, 0);
        chdr->c_hdrsize = ALIGN(sizeof *chdr);
        chdr->c_seghdrsize = ALIGN(sizeof cseg);
@@ -208,7 +209,13 @@
 
        tf = trapframe(p);
        bcopy(tf, &md_core.frame, sizeof md_core.frame);
-       
+       if (pcb->pcb_flags & PCB_FPU) {
+               if (p == fpuproc)
+                       save_fpu(p);
+               md_core.fpstate = pcb->pcb_fpu;
+       } else
+               bzero(&md_core.fpstate, sizeof(md_core.fpstate));
+
        CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
        cseg.c_addr = 0;
        cseg.c_size = chdr->c_cpusize;
@@ -229,7 +236,7 @@
 /*
  * Map a user I/O request into kernel virtual address space.
  * Note: the pages are already locked by uvm_vslock(), so we
- * do not need to pass an access_type to pmap_enter().   
+ * do not need to pass an access_type to pmap_enter().
  */
 void
 vmapbuf(bp, len)
@@ -239,7 +246,7 @@
        vaddr_t faddr, taddr;
        vsize_t off;
        paddr_t pa;
-       
+
 #ifdef DIAGNOSTIC
        if (!(bp->b_flags & B_PHYS))
                panic("vmapbuf");
@@ -269,7 +276,7 @@
 {
        vaddr_t addr;
        vsize_t off;
-       
+
 #ifdef DIAGNOSTIC
        if (!(bp->b_flags & B_PHYS))
                panic("vunmapbuf");