1/* 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#ifdef __KERNEL__ 10#ifndef _PPC_KGDB_H 11#define _PPC_KGDB_H 12 13#ifndef __ASSEMBLY__ 14 15/* Things specific to the gen550 backend. */ 16struct uart_port; 17 18extern void gen550_progress(char *, unsigned short); 19extern void gen550_kgdb_map_scc(void); 20extern void gen550_init(int, struct uart_port *); 21 22/* Things specific to the pmac backend. */ 23extern void zs_kgdb_hook(int tty_num); 24 25/* To init the kgdb engine. (called by serial hook)*/ 26extern void set_debug_traps(void); 27 28/* To enter the debugger explicitly. */ 29extern void breakpoint(void); 30 31/* For taking exceptions 32 * these are defined in traps.c 33 */ 34extern int (*debugger)(struct pt_regs *regs); 35extern int (*debugger_bpt)(struct pt_regs *regs); 36extern int (*debugger_sstep)(struct pt_regs *regs); 37extern int (*debugger_iabr_match)(struct pt_regs *regs); 38extern int (*debugger_dabr_match)(struct pt_regs *regs); 39extern void (*debugger_fault_handler)(struct pt_regs *regs); 40 41/* What we bring to the party */ 42int kgdb_bpt(struct pt_regs *regs); 43int kgdb_sstep(struct pt_regs *regs); 44void kgdb(struct pt_regs *regs); 45int kgdb_iabr_match(struct pt_regs *regs); 46int kgdb_dabr_match(struct pt_regs *regs); 47 48/* 49 * external low-level support routines (ie macserial.c) 50 */ 51extern void kgdb_interruptible(int); /* control interrupts from serial */ 52extern void putDebugChar(char); /* write a single character */ 53extern char getDebugChar(void); /* read and return a single char */ 54 55#endif /* !(__ASSEMBLY__) */ 56#endif /* !(_PPC_KGDB_H) */ 57#endif /* __KERNEL__ */ 58