kvmclock: Add comment explaining why we need cpu_clean_all_dirty()
[qemu.git] / target-lm32 / gdbstub.c
1 /*
2 * LM32 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 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 "config.h"
21 #include "qemu-common.h"
22 #include "exec/gdbstub.h"
23 #include "hw/lm32/lm32_pic.h"
24
25 int lm32_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
26 {
27 LM32CPU *cpu = LM32_CPU(cs);
28 CPULM32State *env = &cpu->env;
29
30 if (n < 32) {
31 return gdb_get_reg32(mem_buf, env->regs[n]);
32 } else {
33 switch (n) {
34 case 32:
35 return gdb_get_reg32(mem_buf, env->pc);
36 /* FIXME: put in right exception ID */
37 case 33:
38 return gdb_get_reg32(mem_buf, 0);
39 case 34:
40 return gdb_get_reg32(mem_buf, env->eba);
41 case 35:
42 return gdb_get_reg32(mem_buf, env->deba);
43 case 36:
44 return gdb_get_reg32(mem_buf, env->ie);
45 case 37:
46 return gdb_get_reg32(mem_buf, lm32_pic_get_im(env->pic_state));
47 case 38:
48 return gdb_get_reg32(mem_buf, lm32_pic_get_ip(env->pic_state));
49 }
50 }
51 return 0;
52 }
53
54 int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
55 {
56 LM32CPU *cpu = LM32_CPU(cs);
57 CPUClass *cc = CPU_GET_CLASS(cs);
58 CPULM32State *env = &cpu->env;
59 uint32_t tmp;
60
61 if (n > cc->gdb_num_core_regs) {
62 return 0;
63 }
64
65 tmp = ldl_p(mem_buf);
66
67 if (n < 32) {
68 env->regs[n] = tmp;
69 } else {
70 switch (n) {
71 case 32:
72 env->pc = tmp;
73 break;
74 case 34:
75 env->eba = tmp;
76 break;
77 case 35:
78 env->deba = tmp;
79 break;
80 case 36:
81 env->ie = tmp;
82 break;
83 case 37:
84 lm32_pic_set_im(env->pic_state, tmp);
85 break;
86 case 38:
87 lm32_pic_set_ip(env->pic_state, tmp);
88 break;
89 }
90 }
91 return 4;
92 }