2 * kgdb.h: Defines and declarations for serial line source level
3 * remote debugging of the Linux kernel using gdb.
5 * PPC Mods (C) 1998 Michael Tesch (tesch@cs.wisc.edu)
7 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
15 /* Things specific to the gen550 backend. */
18 extern void gen550_progress(char *, unsigned short);
19 extern void gen550_kgdb_map_scc(void);
20 extern void gen550_init(int, struct uart_port *);
22 /* Things specific to the pmac backend. */
23 extern void zs_kgdb_hook(int tty_num);
25 /* To init the kgdb engine. (called by serial hook)*/
26 extern void set_debug_traps(void);
28 /* To enter the debugger explicitly. */
29 extern void breakpoint(void);
31 /* For taking exceptions
32 * these are defined in traps.c
34 extern void (*debugger)(struct pt_regs *regs);
35 extern int (*debugger_bpt)(struct pt_regs *regs);
36 extern int (*debugger_sstep)(struct pt_regs *regs);
37 extern int (*debugger_iabr_match)(struct pt_regs *regs);
38 extern int (*debugger_dabr_match)(struct pt_regs *regs);
39 extern void (*debugger_fault_handler)(struct pt_regs *regs);
41 /* What we bring to the party */
42 int kgdb_bpt(struct pt_regs *regs);
43 int kgdb_sstep(struct pt_regs *regs);
44 void kgdb(struct pt_regs *regs);
45 int kgdb_iabr_match(struct pt_regs *regs);
46 int kgdb_dabr_match(struct pt_regs *regs);
49 * external low-level support routines (ie macserial.c)
51 extern void kgdb_interruptible(int); /* control interrupts from serial */
52 extern void putDebugChar(char); /* write a single character */
53 extern char getDebugChar(void); /* read and return a single char */
55 #endif /* !(__ASSEMBLY__) */
56 #endif /* !(_PPC_KGDB_H) */
57 #endif /* __KERNEL__ */