[LV-kern-commit] CVS: kernel-2.4/arch/vax/kernel ptrace.c,1.1,1.2

[Dave A. <ai...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/kernel
In directory usw-pr-cvs1:/tmp/cvs-serv29714

Modified Files:
	ptrace.c 
Log Message:
DA: better ptrace for finding PC .. needs more explains


Index: ptrace.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/kernel/ptrace.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- ptrace.c	2001/10/28 23:54:18	1.1
+++ ptrace.c	2001/11/04 21:58:32	1.2
@@ -8,6 +8,7 @@
  * Copyright (C) Linus Torvalds
  * Copyright (C) 1994, 1995, 1996, 1997, 1998 Ralf Baechle
  * Copyright (C) 1996 David S. Miller
+ * Copyright (C) 2001 David Airlie, VAX Porting Project
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -63,9 +64,18 @@
 	  break;
 	case PT_SP:
 	  retval = child->thread.pcb.usp;
+	  break;
 	case PT_PC:
-	  retval = child->thread.pcb.pc;
+	  {
+	    int i;
+	    struct pt_regs regs;
+	    
+	    //	    hex_dump((void *)(child->thread.pcb.ksp-0x80), 256);
+	    //	    printk("ksp:%8lX ap:%8lX fp:%8lX\n", child->thread.pcb.ksp, child->thread.pcb.ap, child->thread.pcb.ksp+0x64);
+	    /* FIXME: explain 0x64 == 100 = 25 * 4 pc is stored 25 longs into stack.... */
+	    retval = (unsigned long)*(unsigned long *)(child->thread.pcb.ksp + 0x64);
 	  break;
+	  }
 	default:
 	  printk("getreg for %d failed\n", regno);
 	  retval=0;