Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 1 | /* |
| 2 | * SPARC 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 | */ |
Andreas Färber | 5b50e79 | 2013-06-29 04:18:45 +0200 | [diff] [blame] | 20 | #include "config.h" |
| 21 | #include "qemu-common.h" |
| 22 | #include "exec/gdbstub.h" |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 23 | |
| 24 | #ifdef TARGET_ABI32 |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 25 | #define gdb_get_rega(buf, val) gdb_get_reg32(buf, val) |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 26 | #else |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 27 | #define gdb_get_rega(buf, val) gdb_get_regl(buf, val) |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 28 | #endif |
| 29 | |
Andreas Färber | 5b50e79 | 2013-06-29 04:18:45 +0200 | [diff] [blame] | 30 | int sparc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 31 | { |
Andreas Färber | 5b50e79 | 2013-06-29 04:18:45 +0200 | [diff] [blame] | 32 | SPARCCPU *cpu = SPARC_CPU(cs); |
| 33 | CPUSPARCState *env = &cpu->env; |
| 34 | |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 35 | if (n < 8) { |
| 36 | /* g0..g7 */ |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 37 | return gdb_get_rega(mem_buf, env->gregs[n]); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 38 | } |
| 39 | if (n < 32) { |
| 40 | /* register window */ |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 41 | return gdb_get_rega(mem_buf, env->regwptr[n - 8]); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 42 | } |
| 43 | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64) |
| 44 | if (n < 64) { |
| 45 | /* fprs */ |
| 46 | if (n & 1) { |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 47 | return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.lower); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 48 | } else { |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 49 | return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.upper); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 50 | } |
| 51 | } |
| 52 | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */ |
| 53 | switch (n) { |
| 54 | case 64: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 55 | return gdb_get_rega(mem_buf, env->y); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 56 | case 65: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 57 | return gdb_get_rega(mem_buf, cpu_get_psr(env)); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 58 | case 66: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 59 | return gdb_get_rega(mem_buf, env->wim); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 60 | case 67: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 61 | return gdb_get_rega(mem_buf, env->tbr); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 62 | case 68: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 63 | return gdb_get_rega(mem_buf, env->pc); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 64 | case 69: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 65 | return gdb_get_rega(mem_buf, env->npc); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 66 | case 70: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 67 | return gdb_get_rega(mem_buf, env->fsr); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 68 | case 71: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 69 | return gdb_get_rega(mem_buf, 0); /* csr */ |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 70 | default: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 71 | return gdb_get_rega(mem_buf, 0); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 72 | } |
| 73 | #else |
| 74 | if (n < 64) { |
| 75 | /* f0-f31 */ |
| 76 | if (n & 1) { |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 77 | return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.lower); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 78 | } else { |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 79 | return gdb_get_reg32(mem_buf, env->fpr[(n - 32) / 2].l.upper); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 80 | } |
| 81 | } |
| 82 | if (n < 80) { |
| 83 | /* f32-f62 (double width, even numbers only) */ |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 84 | return gdb_get_reg64(mem_buf, env->fpr[(n - 32) / 2].ll); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 85 | } |
| 86 | switch (n) { |
| 87 | case 80: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 88 | return gdb_get_regl(mem_buf, env->pc); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 89 | case 81: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 90 | return gdb_get_regl(mem_buf, env->npc); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 91 | case 82: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 92 | return gdb_get_regl(mem_buf, (cpu_get_ccr(env) << 32) | |
| 93 | ((env->asi & 0xff) << 24) | |
| 94 | ((env->pstate & 0xfff) << 8) | |
| 95 | cpu_get_cwp64(env)); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 96 | case 83: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 97 | return gdb_get_regl(mem_buf, env->fsr); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 98 | case 84: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 99 | return gdb_get_regl(mem_buf, env->fprs); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 100 | case 85: |
Andreas Färber | 986a299 | 2013-07-07 13:05:05 +0200 | [diff] [blame] | 101 | return gdb_get_regl(mem_buf, env->y); |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 102 | } |
| 103 | #endif |
| 104 | return 0; |
| 105 | } |
| 106 | |
Andreas Färber | 5b50e79 | 2013-06-29 04:18:45 +0200 | [diff] [blame] | 107 | int sparc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 108 | { |
Andreas Färber | 5b50e79 | 2013-06-29 04:18:45 +0200 | [diff] [blame] | 109 | SPARCCPU *cpu = SPARC_CPU(cs); |
| 110 | CPUSPARCState *env = &cpu->env; |
Andreas Färber | d19c87f | 2013-07-07 12:29:26 +0200 | [diff] [blame] | 111 | #if defined(TARGET_ABI32) |
| 112 | abi_ulong tmp; |
| 113 | |
| 114 | tmp = ldl_p(mem_buf); |
| 115 | #else |
| 116 | target_ulong tmp; |
| 117 | |
| 118 | tmp = ldtul_p(mem_buf); |
| 119 | #endif |
| 120 | |
| 121 | if (n < 8) { |
| 122 | /* g0..g7 */ |
| 123 | env->gregs[n] = tmp; |
| 124 | } else if (n < 32) { |
| 125 | /* register window */ |
| 126 | env->regwptr[n - 8] = tmp; |
| 127 | } |
| 128 | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64) |
| 129 | else if (n < 64) { |
| 130 | /* fprs */ |
| 131 | /* f0-f31 */ |
| 132 | if (n & 1) { |
| 133 | env->fpr[(n - 32) / 2].l.lower = tmp; |
| 134 | } else { |
| 135 | env->fpr[(n - 32) / 2].l.upper = tmp; |
| 136 | } |
| 137 | } else { |
| 138 | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */ |
| 139 | switch (n) { |
| 140 | case 64: |
| 141 | env->y = tmp; |
| 142 | break; |
| 143 | case 65: |
| 144 | cpu_put_psr(env, tmp); |
| 145 | break; |
| 146 | case 66: |
| 147 | env->wim = tmp; |
| 148 | break; |
| 149 | case 67: |
| 150 | env->tbr = tmp; |
| 151 | break; |
| 152 | case 68: |
| 153 | env->pc = tmp; |
| 154 | break; |
| 155 | case 69: |
| 156 | env->npc = tmp; |
| 157 | break; |
| 158 | case 70: |
| 159 | env->fsr = tmp; |
| 160 | break; |
| 161 | default: |
| 162 | return 0; |
| 163 | } |
| 164 | } |
| 165 | return 4; |
| 166 | #else |
| 167 | else if (n < 64) { |
| 168 | /* f0-f31 */ |
| 169 | tmp = ldl_p(mem_buf); |
| 170 | if (n & 1) { |
| 171 | env->fpr[(n - 32) / 2].l.lower = tmp; |
| 172 | } else { |
| 173 | env->fpr[(n - 32) / 2].l.upper = tmp; |
| 174 | } |
| 175 | return 4; |
| 176 | } else if (n < 80) { |
| 177 | /* f32-f62 (double width, even numbers only) */ |
| 178 | env->fpr[(n - 32) / 2].ll = tmp; |
| 179 | } else { |
| 180 | switch (n) { |
| 181 | case 80: |
| 182 | env->pc = tmp; |
| 183 | break; |
| 184 | case 81: |
| 185 | env->npc = tmp; |
| 186 | break; |
| 187 | case 82: |
| 188 | cpu_put_ccr(env, tmp >> 32); |
| 189 | env->asi = (tmp >> 24) & 0xff; |
| 190 | env->pstate = (tmp >> 8) & 0xfff; |
| 191 | cpu_put_cwp64(env, tmp & 0xff); |
| 192 | break; |
| 193 | case 83: |
| 194 | env->fsr = tmp; |
| 195 | break; |
| 196 | case 84: |
| 197 | env->fprs = tmp; |
| 198 | break; |
| 199 | case 85: |
| 200 | env->y = tmp; |
| 201 | break; |
| 202 | default: |
| 203 | return 0; |
| 204 | } |
| 205 | } |
| 206 | return 8; |
| 207 | #endif |
| 208 | } |