projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | */ | |
| 20 | ||
| 21 | static int cpu_gdb_read_register(CPUAlphaState *env, uint8_t *mem_buf, int n) | |
| 22 | { | |
| 23 | uint64_t val; | |
| 24 | CPU_DoubleU d; | |
| 25 | ||
| 26 | switch (n) { | |
| 27 | case 0 ... 30: | |
| 28 | val = env->ir[n]; | |
| 29 | break; | |
| 30 | case 32 ... 62: | |
| 31 | d.d = env->fir[n - 32]; | |
| 32 | val = d.ll; | |
| 33 | break; | |
| 34 | case 63: | |
| 35 | val = cpu_alpha_load_fpcr(env); | |
| 36 | break; | |
| 37 | case 64: | |
| 38 | val = env->pc; | |
| 39 | break; | |
| 40 | case 66: | |
| 41 | val = env->unique; | |
| 42 | break; | |
| 43 | case 31: | |
| 44 | case 65: | |
| 45 | /* 31 really is the zero register; 65 is unassigned in the | |
| 46 | gdb protocol, but is still required to occupy 8 bytes. */ | |
| 47 | val = 0; | |
| 48 | break; | |
| 49 | default: | |
| 50 | return 0; | |
| 51 | } | |
| 986a2998 | 52 | return gdb_get_regl(mem_buf, val); |
| c3ce8eb3 AF |
53 | } |
| 54 | ||
| 55 | static int cpu_gdb_write_register(CPUAlphaState *env, uint8_t *mem_buf, int n) | |
| 56 | { | |
| 57 | target_ulong tmp = ldtul_p(mem_buf); | |
| 58 | CPU_DoubleU d; | |
| 59 | ||
| 60 | switch (n) { | |
| 61 | case 0 ... 30: | |
| 62 | env->ir[n] = tmp; | |
| 63 | break; | |
| 64 | case 32 ... 62: | |
| 65 | d.ll = tmp; | |
| 66 | env->fir[n - 32] = d.d; | |
| 67 | break; | |
| 68 | case 63: | |
| 69 | cpu_alpha_store_fpcr(env, tmp); | |
| 70 | break; | |
| 71 | case 64: | |
| 72 | env->pc = tmp; | |
| 73 | break; | |
| 74 | case 66: | |
| 75 | env->unique = tmp; | |
| 76 | break; | |
| 77 | case 31: | |
| 78 | case 65: | |
| 79 | /* 31 really is the zero register; 65 is unassigned in the | |
| 80 | gdb protocol, but is still required to occupy 8 bytes. */ | |
| 81 | break; | |
| 82 | default: | |
| 83 | return 0; | |
| 84 | } | |
| 85 | return 8; | |
| 86 | } |