vmsvga: don't process more than 1024 fifo commands at once
[qemu.git] / target-microblaze / gdbstub.c
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 "qemu-common.h"
22 #include "cpu.h"
23 #include "exec/gdbstub.h"
24
25 int mb_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
26 {
27 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
28 CPUMBState *env = &cpu->env;
29
30 if (n < 32) {
31 return gdb_get_reg32(mem_buf, env->regs[n]);
32 } else {
33 return gdb_get_reg32(mem_buf, env->sregs[n - 32]);
34 }
35 return 0;
36 }
37
38 int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
39 {
40 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
41 CPUClass *cc = CPU_GET_CLASS(cs);
42 CPUMBState *env = &cpu->env;
43 uint32_t tmp;
44
45 if (n > cc->gdb_num_core_regs) {
46 return 0;
47 }
48
49 tmp = ldl_p(mem_buf);
50
51 if (n < 32) {
52 env->regs[n] = tmp;
53 } else {
54 env->sregs[n - 32] = tmp;
55 }
56 return 4;
57 }