1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004 Marcel Moolenaar
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef _GDB_GDB_INT_H_
32#define	_GDB_GDB_INT_H_
33
34extern struct gdb_dbgport *gdb_cur;
35
36extern int gdb_listening;
37void gdb_consinit(void);
38
39extern char *gdb_rxp;
40extern size_t gdb_rxsz;
41extern char *gdb_txp;
42
43int gdb_rx_begin(void);
44int gdb_rx_equal(const char *);
45int gdb_rx_mem(unsigned char *, size_t);
46int gdb_rx_varhex(uintmax_t *);
47
48static __inline int
49gdb_rx_char(void)
50{
51	int c;
52
53	if (gdb_rxsz > 0) {
54		c = *gdb_rxp++;
55		gdb_rxsz--;
56	} else
57		c = -1;
58	return (c);
59}
60
61void gdb_tx_begin(char);
62int gdb_tx_end(void);
63int gdb_tx_mem(const unsigned char *, size_t);
64void gdb_tx_reg(int);
65int gdb_rx_bindata(unsigned char *data, size_t datalen, size_t *amt);
66int gdb_search_mem(const unsigned char *addr, size_t size,
67    const unsigned char *pat, size_t patlen, const unsigned char **found);
68
69static __inline void
70gdb_tx_char(char c)
71{
72	*gdb_txp++ = c;
73}
74
75static __inline int
76gdb_tx_empty(void)
77{
78	gdb_tx_begin('\0');
79	return (gdb_tx_end());
80}
81
82static __inline void
83gdb_tx_hex(uintmax_t n, int sz)
84{
85	gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n);
86}
87
88static __inline int
89gdb_tx_err(int err)
90{
91	gdb_tx_begin('E');
92	gdb_tx_hex(err, 2);
93	return (gdb_tx_end());
94}
95
96static __inline int
97gdb_tx_ok(void)
98{
99	gdb_tx_begin('O');
100	gdb_tx_char('K');
101	return (gdb_tx_end());
102}
103
104static __inline void
105gdb_tx_str(const char *s)
106{
107	while (*s)
108		*gdb_txp++ = *s++;
109}
110
111static __inline void
112gdb_tx_varhex(uintmax_t n)
113{
114	gdb_txp += sprintf(gdb_txp, "%jx", n);
115}
116
117#endif /* !_GDB_GDB_INT_H_ */
118