LXR linux-old/include/asm-ppc/kgdb.h

   1/* $Id: kgdb.h,v 1.2 1998/04/11 17:29:07 geert Exp $
   2 * kgdb.h: Defines and declarations for serial line source level
   3 *         remote debugging of the Linux kernel using gdb.
   4 *
   5 * PPC Mods (C) 1998 Michael Tesch (tesch@cs.wisc.edu)
   6 *
   7 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   8 */
   9#ifndef _PPC_KGDB_H
  10#define _PPC_KGDB_H
  11
  12#ifndef __ASSEMBLY__
  13/* To initialize the serial, first thing called */
  14extern void zs_kgdb_hook(int tty_num);
  15/* To init the kgdb engine. (called by serial hook)*/
  16extern void set_debug_traps(void);
  17
  18/* To enter the debugger explicitly. */
  19extern void breakpoint(void);
  20
  21/* For taking exceptions
  22 * these are defined in traps.c
  23 */
  24extern void (*debugger)(struct pt_regs *regs);
  25extern int (*debugger_bpt)(struct pt_regs *regs);
  26extern int (*debugger_sstep)(struct pt_regs *regs);
  27extern int (*debugger_iabr_match)(struct pt_regs *regs);
  28extern int (*debugger_dabr_match)(struct pt_regs *regs);
  29extern void (*debugger_fault_handler)(struct pt_regs *regs);
  30
  31/* What we bring to the party */
  32int kgdb_bpt(struct pt_regs *regs);
  33int kgdb_sstep(struct pt_regs *regs);
  34void kgdb(struct pt_regs *regs);
  35int kgdb_iabr_match(struct pt_regs *regs);
  36int kgdb_dabr_match(struct pt_regs *regs);
  37static void kgdb_fault_handler(struct pt_regs *regs);
  38static void handle_exception (struct pt_regs *regs);
  39
  40/*
  41 * external low-level support routines (ie macserial.c)
  42 */
  43extern void kgdb_interruptible(int); /* control interrupts from serial */
  44extern void putDebugChar(char);   /* write a single character      */
  45extern char getDebugChar(void);   /* read and return a single char */
  46
  47#endif /* !(__ASSEMBLY__) */
  48#endif /* !(_PPC_KGDB_H) */
  49