Home | History | Annotate | Line # | Download | only in powerpc
db_interface.c revision 1.3 
      1 /*	$NetBSD: db_interface.c,v 1.3 1998/07/04 22:18:37 jonathan Exp $ */
      2 /*	$OpenBSD: db_interface.c,v 1.2 1996/12/28 06:21:50 rahnds Exp $	*/
      3 
      4 #include "opt_ddb.h"
      5 
      6 #include <sys/param.h>
      7 #include <sys/proc.h>
      8 
      9 #include <machine/frame.h>
     10 #include <machine/db_machdep.h>
     11 
     12 void
     13 Debugger()
     14 {
     15 	ddb_trap();
     16 }
     17 
     18 int
     19 ddb_trap_glue(frame)
     20 	struct trapframe *frame;
     21 {
     22 	int msr;
     23 
     24 	if (!(frame->srr1 & PSL_PR)
     25 	    && (frame->exc == EXC_TRC
     26 		|| (frame->exc == EXC_PGM
     27 		    && (frame->srr1 & 0x20000))
     28 		|| frame->exc == EXC_BPT)) {
     29 
     30 		bcopy(frame->fixreg, DDB_REGS->r, 32 * sizeof(u_int32_t));
     31 		DDB_REGS->iar = frame->srr0;
     32 		DDB_REGS->msr = frame->srr1;
     33 
     34 		db_trap(T_BREAKPOINT, 0);
     35 
     36 		bcopy(DDB_REGS->r, frame->fixreg, 32 * sizeof(u_int32_t));
     37 
     38 		return 1;
     39 	}
     40 	return 0;
     41 }
     42