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-rw-r--r--include/asm-powerpc/kgdb.h57
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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__ */