1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29 #ifndef _MACHINE_GDB_MACHDEP_H_
30 #define _MACHINE_GDB_MACHDEP_H_
31
32 #define GDB_BUFSZ 4096
33 #define GDB_NREGS 56
34 #define GDB_REG_RAX 0
35 #define GDB_REG_RBX 1
36 #define GDB_REG_RCX 2
37 #define GDB_REG_RDX 3
38 #define GDB_REG_RSI 4
39 #define GDB_REG_RDI 5
40 #define GDB_REG_RBP 6
41 #define GDB_REG_RSP 7
42 #define GDB_REG_R8 8
43 #define GDB_REG_R9 9
44 #define GDB_REG_R10 10
45 #define GDB_REG_R11 11
46 #define GDB_REG_R12 12
47 #define GDB_REG_R13 13
48 #define GDB_REG_R14 14
49 #define GDB_REG_R15 15
50 #define GDB_REG_PC 16
51 #define GDB_REG_RFLAGS 17
52 #define GDB_REG_CS 18
53 #define GDB_REG_SS 19
54 _Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs");
55
56 static __inline size_t
gdb_cpu_regsz(int regnum)57 gdb_cpu_regsz(int regnum)
58 {
59 return ((regnum > 16 && regnum < 24) ? 4 : 8);
60 }
61
62 static __inline int
gdb_cpu_query(void)63 gdb_cpu_query(void)
64 {
65 return (0);
66 }
67
68 void *gdb_begin_write(void);
69 void *gdb_cpu_getreg(int, size_t *);
70 void gdb_cpu_setreg(int, void *);
71 int gdb_cpu_signal(int, int);
72 void gdb_end_write(void *);
73 void gdb_cpu_stop_reason(int, int);
74
75 #endif /* !_MACHINE_GDB_MACHDEP_H_ */
76