i386/linux/linux-2.3.21/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 */
  14 extern void zs_kgdb_hook(int tty_num);
  15 /* To init the kgdb engine. (called by serial hook)*/
  16 extern void set_debug_traps(void);
  17
  18 /* To enter the debugger explicitly. */
  19 extern void breakpoint(void);
  20
  21 /* For taking exceptions
  22  * these are defined in traps.c
  23  */
  24 extern void (*debugger)(struct pt_regs *regs);
  25 extern int (*debugger_bpt)(struct pt_regs *regs);
  26 extern int (*debugger_sstep)(struct pt_regs *regs);
  27 extern int (*debugger_iabr_match)(struct pt_regs *regs);
  28 extern int (*debugger_dabr_match)(struct pt_regs *regs);
  29 extern void (*debugger_fault_handler)(struct pt_regs *regs);
  30
  31 /* What we bring to the party */
  32 int kgdb_bpt(struct pt_regs *regs);
  33 int kgdb_sstep(struct pt_regs *regs);
  34 void kgdb(struct pt_regs *regs);
  35 int kgdb_iabr_match(struct pt_regs *regs);
  36 int kgdb_dabr_match(struct pt_regs *regs);
  37 static void kgdb_fault_handler(struct pt_regs *regs);
  38 static void handle_exception (struct pt_regs *regs);
  39
  40 /*
  41  * external low-level support routines (ie macserial.c)
  42  */
  43 extern void kgdb_interruptible(int); /* control interrupts from serial */
  44 extern void putDebugChar(char);   /* write a single character      */
  45 extern char getDebugChar(void);   /* read and return a single char */
  46
  47 #endif /* !(__ASSEMBLY__) */
  48 #endif /* !(_PPC_KGDB_H) */