1#ifndef __KGDB_H__
2#define __KGDB_H__
3
4#include <asm/ptrace.h>
5
6#define KGDBERR_BADPARAMS	1
7#define KGDBERR_NOTHEXDIG	2
8#define KGDBERR_MEMFAULT	3
9#define KGDBERR_NOSPACE		4
10#define KGDBERR_ALIGNFAULT	5
11
12#define KGDBDATA_MAXREGS	8
13#define KGDBDATA_MAXPRIV	8
14
15#define KGDBEXIT_TYPEMASK	0xff
16
17#define KGDBEXIT_KILL		0
18#define KGDBEXIT_CONTINUE	1
19#define KGDBEXIT_SINGLE		2
20
21#define KGDBEXIT_WITHADDR	0x100
22
23typedef
24	struct {
25		int num;
26		unsigned long val;
27	}
28kgdb_reg;
29
30typedef
31	struct {
32		int sigval;
33		int extype;
34		unsigned long exaddr;
35		int nregs;
36		kgdb_reg regs[KGDBDATA_MAXREGS];
37		unsigned long private[KGDBDATA_MAXPRIV];
38	}
39kgdb_data;
40
41/* these functions are provided by the generic kgdb support */
42/**
43 * kgdb_init()
44 *
45 * Perform initializations to allow debugging U-Boot with gdb over a serial
46 * link. It is called during the generic board init sequence.
47 *
48 * Return: 0 if OK
49 */
50int kgdb_init(void);
51
52extern void kgdb_error(int);
53extern int kgdb_output_string(const char *, unsigned int);
54extern void breakpoint(void);
55
56/* these functions are provided by the platform specific kgdb support */
57extern void kgdb_flush_cache_range(void *, void *);
58extern void kgdb_flush_cache_all(void);
59extern int kgdb_setjmp(long *);
60extern void kgdb_longjmp(long *, int);
61extern void kgdb_enter(struct pt_regs *, kgdb_data *);
62extern void kgdb_exit(struct pt_regs *, kgdb_data *);
63extern int kgdb_getregs(struct pt_regs *, char *, int);
64extern void kgdb_putreg(struct pt_regs *, int, char *, int);
65extern void kgdb_putregs(struct pt_regs *, char *, int);
66extern int kgdb_trap(struct pt_regs *);
67void kgdb_breakpoint(int argc, char *const argv[]);
68
69/* these functions are provided by the platform serial driver */
70extern void kgdb_serial_init(void);
71extern int getDebugChar(void);
72extern void putDebugChar(int);
73extern void putDebugStr(const char *);
74extern void kgdb_interruptible(int);
75
76/* this is referenced in the trap handler for the platform */
77extern int (*debugger_exception_handler)(struct pt_regs *);
78
79#endif /* __KGDB_H__ */
80