/* $OpenBSD: db_interface.c,v 1.7 2003/10/15 17:50:16 drahn Exp $ */
/* $NetBSD: db_interface.c,v 1.12 2001/07/22 11:29:46 wiz Exp $ */
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <dev/cons.h>
#include <machine/db_machdep.h>
#include <ddb/db_extern.h>
int ddb_trap_glue(struct trapframe *frame); /* called from locore */
void
Debugger()
{
ddb_trap();
}
int
ddb_trap_glue(struct trapframe *frame)
{
if (!(frame->srr1 & PSL_PR)
&& (frame->exc == EXC_TRC
|| (frame->exc == EXC_PGM && (frame->srr1 & 0x20000))
|| frame->exc == EXC_BPT)) {
bcopy(frame->fixreg, DDB_REGS->tf.fixreg,
32 * sizeof(u_int32_t));
DDB_REGS->tf.srr0 = frame->srr0;
DDB_REGS->tf.srr1 = frame->srr1;
cnpollc(TRUE);
db_trap(T_BREAKPOINT, 0);
cnpollc(FALSE);
bcopy(DDB_REGS->tf.fixreg, frame->fixreg,
32 * sizeof(u_int32_t));
return 1;
}
return 0;
}