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c3ce8eb3 AF |
1 | /* |
2 | * Alpha 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 | */ | |
e2e5e114 | 20 | #include "qemu/osdep.h" |
5b50e790 | 21 | #include "qemu-common.h" |
33c11879 | 22 | #include "cpu.h" |
5b50e790 | 23 | #include "exec/gdbstub.h" |
c3ce8eb3 | 24 | |
5b50e790 | 25 | int alpha_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) |
c3ce8eb3 | 26 | { |
5b50e790 AF |
27 | AlphaCPU *cpu = ALPHA_CPU(cs); |
28 | CPUAlphaState *env = &cpu->env; | |
c3ce8eb3 AF |
29 | uint64_t val; |
30 | CPU_DoubleU d; | |
31 | ||
32 | switch (n) { | |
33 | case 0 ... 30: | |
59124384 | 34 | val = cpu_alpha_load_gr(env, n); |
c3ce8eb3 AF |
35 | break; |
36 | case 32 ... 62: | |
37 | d.d = env->fir[n - 32]; | |
38 | val = d.ll; | |
39 | break; | |
40 | case 63: | |
41 | val = cpu_alpha_load_fpcr(env); | |
42 | break; | |
43 | case 64: | |
44 | val = env->pc; | |
45 | break; | |
46 | case 66: | |
47 | val = env->unique; | |
48 | break; | |
49 | case 31: | |
50 | case 65: | |
51 | /* 31 really is the zero register; 65 is unassigned in the | |
52 | gdb protocol, but is still required to occupy 8 bytes. */ | |
53 | val = 0; | |
54 | break; | |
55 | default: | |
56 | return 0; | |
57 | } | |
986a2998 | 58 | return gdb_get_regl(mem_buf, val); |
c3ce8eb3 AF |
59 | } |
60 | ||
5b50e790 | 61 | int alpha_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
c3ce8eb3 | 62 | { |
5b50e790 AF |
63 | AlphaCPU *cpu = ALPHA_CPU(cs); |
64 | CPUAlphaState *env = &cpu->env; | |
c3ce8eb3 AF |
65 | target_ulong tmp = ldtul_p(mem_buf); |
66 | CPU_DoubleU d; | |
67 | ||
68 | switch (n) { | |
69 | case 0 ... 30: | |
59124384 | 70 | cpu_alpha_store_gr(env, n, tmp); |
c3ce8eb3 AF |
71 | break; |
72 | case 32 ... 62: | |
73 | d.ll = tmp; | |
74 | env->fir[n - 32] = d.d; | |
75 | break; | |
76 | case 63: | |
77 | cpu_alpha_store_fpcr(env, tmp); | |
78 | break; | |
79 | case 64: | |
80 | env->pc = tmp; | |
81 | break; | |
82 | case 66: | |
83 | env->unique = tmp; | |
84 | break; | |
85 | case 31: | |
86 | case 65: | |
87 | /* 31 really is the zero register; 65 is unassigned in the | |
88 | gdb protocol, but is still required to occupy 8 bytes. */ | |
89 | break; | |
90 | default: | |
91 | return 0; | |
92 | } | |
93 | return 8; | |
94 | } |