configure: fix --meson=/path/to/meson
[qemu.git] / target / m68k / gdbstub.c
1 /*
2 * m68k gdb server stub
3 *
4 * Copyright (c) 2003-2005 Fabrice Bellard
5 * Copyright (c) 2013 SUSE LINUX Products GmbH
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 */
20 #include "qemu/osdep.h"
21 #include "cpu.h"
22 #include "exec/gdbstub.h"
23
24 int m68k_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
25 {
26 M68kCPU *cpu = M68K_CPU(cs);
27 CPUM68KState *env = &cpu->env;
28
29 if (n < 8) {
30 /* D0-D7 */
31 return gdb_get_reg32(mem_buf, env->dregs[n]);
32 } else if (n < 16) {
33 /* A0-A7 */
34 return gdb_get_reg32(mem_buf, env->aregs[n - 8]);
35 } else {
36 switch (n) {
37 case 16:
38 /* SR is made of SR+CCR, CCR is many 1bit flags so uses helper */
39 return gdb_get_reg32(mem_buf, env->sr | cpu_m68k_get_ccr(env));
40 case 17:
41 return gdb_get_reg32(mem_buf, env->pc);
42 }
43 }
44 /*
45 * FP registers not included here because they vary between
46 * ColdFire and m68k. Use XML bits for these.
47 */
48 return 0;
49 }
50
51 int m68k_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
52 {
53 M68kCPU *cpu = M68K_CPU(cs);
54 CPUM68KState *env = &cpu->env;
55 uint32_t tmp;
56
57 tmp = ldl_p(mem_buf);
58
59 if (n < 8) {
60 /* D0-D7 */
61 env->dregs[n] = tmp;
62 } else if (n < 16) {
63 /* A0-A7 */
64 env->aregs[n - 8] = tmp;
65 } else {
66 switch (n) {
67 case 16:
68 cpu_m68k_set_sr(env, tmp);
69 break;
70 case 17:
71 env->pc = tmp;
72 break;
73 default:
74 return 0;
75 }
76 }
77 return 4;
78 }