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 "qemu/osdep.h" |
21 | #include "cpu.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 | } |
57 |