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1 | /* | |
2 | * MicroBlaze 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 | ||
24 | int mb_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) | |
25 | { | |
26 | MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); | |
27 | CPUMBState *env = &cpu->env; | |
28 | ||
29 | if (n < 32) { | |
30 | return gdb_get_reg32(mem_buf, env->regs[n]); | |
31 | } else { | |
32 | return gdb_get_reg32(mem_buf, env->sregs[n - 32]); | |
33 | } | |
34 | return 0; | |
35 | } | |
36 | ||
37 | int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) | |
38 | { | |
39 | MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); | |
40 | CPUClass *cc = CPU_GET_CLASS(cs); | |
41 | CPUMBState *env = &cpu->env; | |
42 | uint32_t tmp; | |
43 | ||
44 | if (n > cc->gdb_num_core_regs) { | |
45 | return 0; | |
46 | } | |
47 | ||
48 | tmp = ldl_p(mem_buf); | |
49 | ||
50 | if (n < 32) { | |
51 | env->regs[n] = tmp; | |
52 | } else { | |
53 | env->sregs[n - 32] = tmp; | |
54 | } | |
55 | return 4; | |
56 | } |