Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging
[qemu.git] / target / rx / gdbstub.c
1 /*
2 * RX gdb server stub
3 *
4 * Copyright (c) 2019 Yoshinori Sato
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2 or later, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #include "qemu/osdep.h"
19 #include "cpu.h"
20 #include "exec/gdbstub.h"
21
22 int rx_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
23 {
24 RXCPU *cpu = RX_CPU(cs);
25 CPURXState *env = &cpu->env;
26
27 switch (n) {
28 case 0 ... 15:
29 return gdb_get_regl(mem_buf, env->regs[n]);
30 case 16:
31 return gdb_get_regl(mem_buf, (env->psw_u) ? env->regs[0] : env->usp);
32 case 17:
33 return gdb_get_regl(mem_buf, (!env->psw_u) ? env->regs[0] : env->isp);
34 case 18:
35 return gdb_get_regl(mem_buf, rx_cpu_pack_psw(env));
36 case 19:
37 return gdb_get_regl(mem_buf, env->pc);
38 case 20:
39 return gdb_get_regl(mem_buf, env->intb);
40 case 21:
41 return gdb_get_regl(mem_buf, env->bpsw);
42 case 22:
43 return gdb_get_regl(mem_buf, env->bpc);
44 case 23:
45 return gdb_get_regl(mem_buf, env->fintv);
46 case 24:
47 return gdb_get_regl(mem_buf, env->fpsw);
48 case 25:
49 return 0;
50 }
51 return 0;
52 }
53
54 int rx_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
55 {
56 RXCPU *cpu = RX_CPU(cs);
57 CPURXState *env = &cpu->env;
58 uint32_t psw;
59 switch (n) {
60 case 0 ... 15:
61 env->regs[n] = ldl_p(mem_buf);
62 if (n == 0) {
63 if (env->psw_u) {
64 env->usp = env->regs[0];
65 } else {
66 env->isp = env->regs[0];
67 }
68 }
69 break;
70 case 16:
71 env->usp = ldl_p(mem_buf);
72 if (env->psw_u) {
73 env->regs[0] = ldl_p(mem_buf);
74 }
75 break;
76 case 17:
77 env->isp = ldl_p(mem_buf);
78 if (!env->psw_u) {
79 env->regs[0] = ldl_p(mem_buf);
80 }
81 break;
82 case 18:
83 psw = ldl_p(mem_buf);
84 rx_cpu_unpack_psw(env, psw, 1);
85 break;
86 case 19:
87 env->pc = ldl_p(mem_buf);
88 break;
89 case 20:
90 env->intb = ldl_p(mem_buf);
91 break;
92 case 21:
93 env->bpsw = ldl_p(mem_buf);
94 break;
95 case 22:
96 env->bpc = ldl_p(mem_buf);
97 break;
98 case 23:
99 env->fintv = ldl_p(mem_buf);
100 break;
101 case 24:
102 env->fpsw = ldl_p(mem_buf);
103 break;
104 case 25:
105 return 8;
106 default:
107 return 0;
108 }
109
110 return 4;
111 }