1/*-
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _GDB_GDB_INT_H_
30#define	_GDB_GDB_INT_H_
31
32extern struct gdb_dbgport *gdb_cur;
33
34extern int gdb_listening;
35void gdb_consinit(void);
36
37extern char *gdb_rxp;
38extern size_t gdb_rxsz;
39extern char *gdb_txp;
40
41int gdb_rx_begin(void);
42int gdb_rx_equal(const char *);
43int gdb_rx_mem(unsigned char *, size_t);
44int gdb_rx_varhex(uintmax_t *);
45
46static __inline int
47gdb_rx_char(void)
48{
49	int c;
50
51	if (gdb_rxsz > 0) {
52		c = *gdb_rxp++;
53		gdb_rxsz--;
54	} else
55		c = -1;
56	return (c);
57}
58
59void gdb_tx_begin(char);
60int gdb_tx_end(void);
61int gdb_tx_mem(const unsigned char *, size_t);
62void gdb_tx_reg(int);
63
64static __inline void
65gdb_tx_char(char c)
66{
67	*gdb_txp++ = c;
68}
69
70static __inline int
71gdb_tx_empty(void)
72{
73	gdb_tx_begin('\0');
74	return (gdb_tx_end());
75}
76
77static __inline void
78gdb_tx_hex(uintmax_t n, int sz)
79{
80	gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n);
81}
82
83static __inline int
84gdb_tx_err(int err)
85{
86	gdb_tx_begin('E');
87	gdb_tx_hex(err, 2);
88	return (gdb_tx_end());
89}
90
91static __inline int
92gdb_tx_ok(void)
93{
94	gdb_tx_begin('O');
95	gdb_tx_char('K');
96	return (gdb_tx_end());
97}
98
99static __inline void
100gdb_tx_str(const char *s)
101{
102	while (*s)
103		*gdb_txp++ = *s++;
104}
105
106static __inline void
107gdb_tx_varhex(uintmax_t n)
108{
109	gdb_txp += sprintf(gdb_txp, "%jx", n);
110}
111
112#endif /* !_GDB_GDB_INT_H_ */
113