snapshot FP regs on core dump

SCCS-vsn: sys/pmax/pmax/vm_machdep.c 7.5

diff --git a/usr/src/sys/pmax/pmax/vm_machdep.c b/usr/src/sys/pmax/pmax/vm_machdep.c
index dad6c77..d8d5c91 100644 (file)
--- a/usr/src/sys/pmax/pmax/vm_machdep.c
+++ b/usr/src/sys/pmax/pmax/vm_machdep.c
@@ -11,7 +11,7 @@
  *
  * from: Utah $Hdr: vm_machdep.c 1.21 91/04/06$
  *
  *
  * from: Utah $Hdr: vm_machdep.c 1.21 91/04/06$
  *

- *     @(#)vm_machdep.c        7.4 (Berkeley) %G%
+ *     @(#)vm_machdep.c        7.5 (Berkeley) %G%

  */
 
 #include "param.h"
  */
 
 #include "param.h"


@@ -117,13 +117,20 @@ cpu_exit(p)
 
 /*
  * Dump the machine specific header information at the start of a core dump.
 
 /*
  * Dump the machine specific header information at the start of a core dump.

- * XXX should snapshot FPU here?

  */
 cpu_coredump(p, vp, cred)
        struct proc *p;
        struct vnode *vp;
        struct ucred *cred;
 {
  */
 cpu_coredump(p, vp, cred)
        struct proc *p;
        struct vnode *vp;
        struct ucred *cred;
 {

+       extern struct proc *machFPCurProcPtr;
+
+       /*
+        * Copy floating point state from the FP chip if this process
+        * has state stored there.
+        */
+       if (p == machFPCurProcPtr)
+               MachSaveCurFPState(p);

 
        return (vn_rdwr(UIO_WRITE, vp, (caddr_t)p->p_addr, ctob(UPAGES),
            (off_t)0, UIO_SYSSPACE, IO_NODELOCKED|IO_UNIT, cred, (int *)NULL,
 
        return (vn_rdwr(UIO_WRITE, vp, (caddr_t)p->p_addr, ctob(UPAGES),
            (off_t)0, UIO_SYSSPACE, IO_NODELOCKED|IO_UNIT, cred, (int *)NULL,