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Commit | Line | Data |
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0980bfab AF |
1 | /* |
2 | * PowerPC 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 | |
6bd039cd | 10 | * version 2.1 of the License, or (at your option) any later version. |
0980bfab AF |
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 | */ | |
0d75590d | 20 | #include "qemu/osdep.h" |
33c11879 | 21 | #include "cpu.h" |
5b50e790 | 22 | #include "exec/gdbstub.h" |
4ea5fe99 | 23 | #include "gdbstub/helpers.h" |
35a5d74e | 24 | #include "internal.h" |
0980bfab | 25 | |
b3cad3ab AG |
26 | static int ppc_gdb_register_len_apple(int n) |
27 | { | |
28 | switch (n) { | |
29 | case 0 ... 31: | |
30 | /* gprs */ | |
31 | return 8; | |
32 | case 32 ... 63: | |
33 | /* fprs */ | |
34 | return 8; | |
35 | case 64 ... 95: | |
36 | return 16; | |
02381ec1 DG |
37 | case 64 + 32: /* nip */ |
38 | case 65 + 32: /* msr */ | |
39 | case 67 + 32: /* lr */ | |
40 | case 68 + 32: /* ctr */ | |
41 | case 70 + 32: /* fpscr */ | |
b3cad3ab | 42 | return 8; |
02381ec1 DG |
43 | case 66 + 32: /* cr */ |
44 | case 69 + 32: /* xer */ | |
b3cad3ab AG |
45 | return 4; |
46 | default: | |
47 | return 0; | |
48 | } | |
49 | } | |
50 | ||
c46e9831 TF |
51 | static int ppc_gdb_register_len(int n) |
52 | { | |
53 | switch (n) { | |
54 | case 0 ... 31: | |
55 | /* gprs */ | |
56 | return sizeof(target_ulong); | |
57 | case 32 ... 63: | |
58 | /* fprs */ | |
59 | if (gdb_has_xml) { | |
60 | return 0; | |
61 | } | |
62 | return 8; | |
63 | case 66: | |
64 | /* cr */ | |
a2f04333 MM |
65 | case 69: |
66 | /* xer */ | |
c46e9831 TF |
67 | return 4; |
68 | case 64: | |
69 | /* nip */ | |
70 | case 65: | |
71 | /* msr */ | |
72 | case 67: | |
73 | /* lr */ | |
74 | case 68: | |
75 | /* ctr */ | |
c46e9831 TF |
76 | return sizeof(target_ulong); |
77 | case 70: | |
78 | /* fpscr */ | |
79 | if (gdb_has_xml) { | |
80 | return 0; | |
81 | } | |
82 | return sizeof(target_ulong); | |
83 | default: | |
84 | return 0; | |
85 | } | |
86 | } | |
87 | ||
02381ec1 DG |
88 | /* |
89 | * We need to present the registers to gdb in the "current" memory | |
90 | * ordering. For user-only mode we get this for free; | |
ee3eb3a7 | 91 | * TARGET_BIG_ENDIAN is set to the proper ordering for the |
02381ec1 | 92 | * binary, and cannot be changed. For system mode, |
ee3eb3a7 | 93 | * TARGET_BIG_ENDIAN is always set, and we must check the current |
02381ec1 DG |
94 | * mode of the chip to see if we're running in little-endian. |
95 | */ | |
376dbce0 | 96 | void ppc_maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len) |
8a286ce4 | 97 | { |
be5c9dda | 98 | #ifndef CONFIG_USER_ONLY |
1922322c | 99 | if (!FIELD_EX64(env->msr, MSR, LE)) { |
be5c9dda RH |
100 | /* do nothing */ |
101 | } else if (len == 4) { | |
8a286ce4 TF |
102 | bswap32s((uint32_t *)mem_buf); |
103 | } else if (len == 8) { | |
104 | bswap64s((uint64_t *)mem_buf); | |
0ff16b6b MF |
105 | } else if (len == 16) { |
106 | bswap128s((Int128 *)mem_buf); | |
8a286ce4 TF |
107 | } else { |
108 | g_assert_not_reached(); | |
109 | } | |
be5c9dda | 110 | #endif |
8a286ce4 TF |
111 | } |
112 | ||
02381ec1 DG |
113 | /* |
114 | * Old gdb always expects FP registers. Newer (xml-aware) gdb only | |
0980bfab AF |
115 | * expects whatever the target description contains. Due to a |
116 | * historical mishap the FP registers appear in between core integer | |
02381ec1 DG |
117 | * regs and PC, MSR, CR, and so forth. We hack round this by giving |
118 | * the FP regs zero size when talking to a newer gdb. | |
0980bfab AF |
119 | */ |
120 | ||
a010bdbe | 121 | int ppc_cpu_gdb_read_register(CPUState *cs, GByteArray *buf, int n) |
0980bfab | 122 | { |
5b50e790 AF |
123 | PowerPCCPU *cpu = POWERPC_CPU(cs); |
124 | CPUPPCState *env = &cpu->env; | |
a010bdbe | 125 | uint8_t *mem_buf; |
c46e9831 TF |
126 | int r = ppc_gdb_register_len(n); |
127 | ||
128 | if (!r) { | |
129 | return r; | |
130 | } | |
5b50e790 | 131 | |
0980bfab AF |
132 | if (n < 32) { |
133 | /* gprs */ | |
a010bdbe | 134 | gdb_get_regl(buf, env->gpr[n]); |
0980bfab AF |
135 | } else if (n < 64) { |
136 | /* fprs */ | |
34510e32 | 137 | gdb_get_reg64(buf, *cpu_fpr_ptr(env, n - 32)); |
0980bfab AF |
138 | } else { |
139 | switch (n) { | |
140 | case 64: | |
a010bdbe | 141 | gdb_get_regl(buf, env->nip); |
c46e9831 | 142 | break; |
0980bfab | 143 | case 65: |
a010bdbe | 144 | gdb_get_regl(buf, env->msr); |
c46e9831 | 145 | break; |
0980bfab AF |
146 | case 66: |
147 | { | |
148 | uint32_t cr = 0; | |
149 | int i; | |
150 | for (i = 0; i < 8; i++) { | |
151 | cr |= env->crf[i] << (32 - ((i + 1) * 4)); | |
152 | } | |
a010bdbe | 153 | gdb_get_reg32(buf, cr); |
c46e9831 | 154 | break; |
0980bfab AF |
155 | } |
156 | case 67: | |
a010bdbe | 157 | gdb_get_regl(buf, env->lr); |
c46e9831 | 158 | break; |
0980bfab | 159 | case 68: |
a010bdbe | 160 | gdb_get_regl(buf, env->ctr); |
c46e9831 | 161 | break; |
0980bfab | 162 | case 69: |
7974dc59 | 163 | gdb_get_reg32(buf, cpu_read_xer(env)); |
c46e9831 | 164 | break; |
0980bfab | 165 | case 70: |
a010bdbe | 166 | gdb_get_reg32(buf, env->fpscr); |
c46e9831 | 167 | break; |
0980bfab AF |
168 | } |
169 | } | |
a010bdbe | 170 | mem_buf = buf->data + buf->len - r; |
376dbce0 | 171 | ppc_maybe_bswap_register(env, mem_buf, r); |
c46e9831 | 172 | return r; |
0980bfab AF |
173 | } |
174 | ||
a010bdbe | 175 | int ppc_cpu_gdb_read_register_apple(CPUState *cs, GByteArray *buf, int n) |
b3cad3ab AG |
176 | { |
177 | PowerPCCPU *cpu = POWERPC_CPU(cs); | |
178 | CPUPPCState *env = &cpu->env; | |
a010bdbe | 179 | uint8_t *mem_buf; |
b3cad3ab AG |
180 | int r = ppc_gdb_register_len_apple(n); |
181 | ||
182 | if (!r) { | |
183 | return r; | |
184 | } | |
185 | ||
186 | if (n < 32) { | |
187 | /* gprs */ | |
a010bdbe | 188 | gdb_get_reg64(buf, env->gpr[n]); |
b3cad3ab AG |
189 | } else if (n < 64) { |
190 | /* fprs */ | |
34510e32 | 191 | gdb_get_reg64(buf, *cpu_fpr_ptr(env, n - 32)); |
b3cad3ab AG |
192 | } else if (n < 96) { |
193 | /* Altivec */ | |
a010bdbe AB |
194 | gdb_get_reg64(buf, n - 64); |
195 | gdb_get_reg64(buf, 0); | |
b3cad3ab AG |
196 | } else { |
197 | switch (n) { | |
198 | case 64 + 32: | |
a010bdbe | 199 | gdb_get_reg64(buf, env->nip); |
b3cad3ab AG |
200 | break; |
201 | case 65 + 32: | |
a010bdbe | 202 | gdb_get_reg64(buf, env->msr); |
b3cad3ab AG |
203 | break; |
204 | case 66 + 32: | |
205 | { | |
206 | uint32_t cr = 0; | |
207 | int i; | |
208 | for (i = 0; i < 8; i++) { | |
209 | cr |= env->crf[i] << (32 - ((i + 1) * 4)); | |
210 | } | |
a010bdbe | 211 | gdb_get_reg32(buf, cr); |
b3cad3ab AG |
212 | break; |
213 | } | |
214 | case 67 + 32: | |
a010bdbe | 215 | gdb_get_reg64(buf, env->lr); |
b3cad3ab AG |
216 | break; |
217 | case 68 + 32: | |
a010bdbe | 218 | gdb_get_reg64(buf, env->ctr); |
b3cad3ab AG |
219 | break; |
220 | case 69 + 32: | |
7974dc59 | 221 | gdb_get_reg32(buf, cpu_read_xer(env)); |
b3cad3ab AG |
222 | break; |
223 | case 70 + 32: | |
a010bdbe | 224 | gdb_get_reg64(buf, env->fpscr); |
b3cad3ab AG |
225 | break; |
226 | } | |
227 | } | |
a010bdbe | 228 | mem_buf = buf->data + buf->len - r; |
376dbce0 | 229 | ppc_maybe_bswap_register(env, mem_buf, r); |
b3cad3ab AG |
230 | return r; |
231 | } | |
232 | ||
5b50e790 | 233 | int ppc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
0980bfab | 234 | { |
5b50e790 AF |
235 | PowerPCCPU *cpu = POWERPC_CPU(cs); |
236 | CPUPPCState *env = &cpu->env; | |
c46e9831 | 237 | int r = ppc_gdb_register_len(n); |
5b50e790 | 238 | |
c46e9831 TF |
239 | if (!r) { |
240 | return r; | |
241 | } | |
376dbce0 | 242 | ppc_maybe_bswap_register(env, mem_buf, r); |
0980bfab AF |
243 | if (n < 32) { |
244 | /* gprs */ | |
245 | env->gpr[n] = ldtul_p(mem_buf); | |
0980bfab AF |
246 | } else if (n < 64) { |
247 | /* fprs */ | |
34510e32 | 248 | *cpu_fpr_ptr(env, n - 32) = ldq_p(mem_buf); |
0980bfab AF |
249 | } else { |
250 | switch (n) { | |
251 | case 64: | |
252 | env->nip = ldtul_p(mem_buf); | |
c46e9831 | 253 | break; |
0980bfab AF |
254 | case 65: |
255 | ppc_store_msr(env, ldtul_p(mem_buf)); | |
c46e9831 | 256 | break; |
0980bfab AF |
257 | case 66: |
258 | { | |
259 | uint32_t cr = ldl_p(mem_buf); | |
260 | int i; | |
261 | for (i = 0; i < 8; i++) { | |
262 | env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF; | |
263 | } | |
c46e9831 | 264 | break; |
0980bfab AF |
265 | } |
266 | case 67: | |
267 | env->lr = ldtul_p(mem_buf); | |
c46e9831 | 268 | break; |
0980bfab AF |
269 | case 68: |
270 | env->ctr = ldtul_p(mem_buf); | |
c46e9831 | 271 | break; |
0980bfab | 272 | case 69: |
7974dc59 | 273 | cpu_write_xer(env, ldl_p(mem_buf)); |
c46e9831 | 274 | break; |
0980bfab AF |
275 | case 70: |
276 | /* fpscr */ | |
fe43ba97 | 277 | ppc_store_fpscr(env, ldtul_p(mem_buf)); |
c46e9831 | 278 | break; |
0980bfab AF |
279 | } |
280 | } | |
c46e9831 | 281 | return r; |
0980bfab | 282 | } |
b3cad3ab AG |
283 | int ppc_cpu_gdb_write_register_apple(CPUState *cs, uint8_t *mem_buf, int n) |
284 | { | |
285 | PowerPCCPU *cpu = POWERPC_CPU(cs); | |
286 | CPUPPCState *env = &cpu->env; | |
287 | int r = ppc_gdb_register_len_apple(n); | |
288 | ||
289 | if (!r) { | |
290 | return r; | |
291 | } | |
376dbce0 | 292 | ppc_maybe_bswap_register(env, mem_buf, r); |
b3cad3ab AG |
293 | if (n < 32) { |
294 | /* gprs */ | |
295 | env->gpr[n] = ldq_p(mem_buf); | |
296 | } else if (n < 64) { | |
297 | /* fprs */ | |
34510e32 | 298 | *cpu_fpr_ptr(env, n - 32) = ldq_p(mem_buf); |
b3cad3ab AG |
299 | } else { |
300 | switch (n) { | |
301 | case 64 + 32: | |
302 | env->nip = ldq_p(mem_buf); | |
303 | break; | |
304 | case 65 + 32: | |
305 | ppc_store_msr(env, ldq_p(mem_buf)); | |
306 | break; | |
307 | case 66 + 32: | |
308 | { | |
309 | uint32_t cr = ldl_p(mem_buf); | |
310 | int i; | |
311 | for (i = 0; i < 8; i++) { | |
312 | env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF; | |
313 | } | |
314 | break; | |
315 | } | |
316 | case 67 + 32: | |
317 | env->lr = ldq_p(mem_buf); | |
318 | break; | |
319 | case 68 + 32: | |
320 | env->ctr = ldq_p(mem_buf); | |
321 | break; | |
322 | case 69 + 32: | |
7974dc59 | 323 | cpu_write_xer(env, ldl_p(mem_buf)); |
b3cad3ab AG |
324 | break; |
325 | case 70 + 32: | |
326 | /* fpscr */ | |
fe43ba97 | 327 | ppc_store_fpscr(env, ldq_p(mem_buf)); |
b3cad3ab AG |
328 | break; |
329 | } | |
330 | } | |
331 | return r; | |
332 | } | |
707c7c2e FR |
333 | |
334 | #ifndef CONFIG_USER_ONLY | |
335 | void ppc_gdb_gen_spr_xml(PowerPCCPU *cpu) | |
336 | { | |
337 | PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); | |
338 | CPUPPCState *env = &cpu->env; | |
339 | GString *xml; | |
340 | char *spr_name; | |
341 | unsigned int num_regs = 0; | |
342 | int i; | |
343 | ||
344 | if (pcc->gdb_spr_xml) { | |
345 | return; | |
346 | } | |
347 | ||
348 | xml = g_string_new("<?xml version=\"1.0\"?>"); | |
349 | g_string_append(xml, "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">"); | |
350 | g_string_append(xml, "<feature name=\"org.qemu.power.spr\">"); | |
351 | ||
352 | for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) { | |
353 | ppc_spr_t *spr = &env->spr_cb[i]; | |
354 | ||
355 | if (!spr->name) { | |
356 | continue; | |
357 | } | |
358 | ||
359 | spr_name = g_ascii_strdown(spr->name, -1); | |
360 | g_string_append_printf(xml, "<reg name=\"%s\"", spr_name); | |
361 | g_free(spr_name); | |
362 | ||
363 | g_string_append_printf(xml, " bitsize=\"%d\"", TARGET_LONG_BITS); | |
364 | g_string_append(xml, " group=\"spr\"/>"); | |
365 | ||
366 | /* | |
367 | * GDB identifies registers based on the order they are | |
368 | * presented in the XML. These ids will not match QEMU's | |
369 | * representation (which follows the PowerISA). | |
370 | * | |
371 | * Store the position of the current register description so | |
372 | * we can make the correspondence later. | |
373 | */ | |
374 | spr->gdb_id = num_regs; | |
375 | num_regs++; | |
376 | } | |
377 | ||
378 | g_string_append(xml, "</feature>"); | |
379 | ||
380 | pcc->gdb_num_sprs = num_regs; | |
381 | pcc->gdb_spr_xml = g_string_free(xml, false); | |
382 | } | |
383 | ||
384 | const char *ppc_gdb_get_dynamic_xml(CPUState *cs, const char *xml_name) | |
385 | { | |
386 | PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs); | |
387 | ||
388 | if (strcmp(xml_name, "power-spr.xml") == 0) { | |
389 | return pcc->gdb_spr_xml; | |
390 | } | |
391 | return NULL; | |
392 | } | |
393 | #endif | |
35a5d74e | 394 | |
35a5d74e BL |
395 | #if !defined(CONFIG_USER_ONLY) |
396 | static int gdb_find_spr_idx(CPUPPCState *env, int n) | |
397 | { | |
398 | int i; | |
399 | ||
400 | for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) { | |
401 | ppc_spr_t *spr = &env->spr_cb[i]; | |
402 | ||
403 | if (spr->name && spr->gdb_id == n) { | |
404 | return i; | |
405 | } | |
406 | } | |
407 | return -1; | |
408 | } | |
409 | ||
410 | static int gdb_get_spr_reg(CPUPPCState *env, GByteArray *buf, int n) | |
411 | { | |
412 | int reg; | |
413 | int len; | |
414 | ||
415 | reg = gdb_find_spr_idx(env, n); | |
416 | if (reg < 0) { | |
417 | return 0; | |
418 | } | |
419 | ||
420 | len = TARGET_LONG_SIZE; | |
421 | gdb_get_regl(buf, env->spr[reg]); | |
422 | ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, len), len); | |
423 | return len; | |
424 | } | |
425 | ||
426 | static int gdb_set_spr_reg(CPUPPCState *env, uint8_t *mem_buf, int n) | |
427 | { | |
428 | int reg; | |
429 | int len; | |
430 | ||
431 | reg = gdb_find_spr_idx(env, n); | |
432 | if (reg < 0) { | |
433 | return 0; | |
434 | } | |
435 | ||
436 | len = TARGET_LONG_SIZE; | |
437 | ppc_maybe_bswap_register(env, mem_buf, len); | |
438 | env->spr[reg] = ldn_p(mem_buf, len); | |
439 | ||
440 | return len; | |
441 | } | |
442 | #endif | |
443 | ||
444 | static int gdb_get_float_reg(CPUPPCState *env, GByteArray *buf, int n) | |
445 | { | |
446 | uint8_t *mem_buf; | |
447 | if (n < 32) { | |
448 | gdb_get_reg64(buf, *cpu_fpr_ptr(env, n)); | |
449 | mem_buf = gdb_get_reg_ptr(buf, 8); | |
450 | ppc_maybe_bswap_register(env, mem_buf, 8); | |
451 | return 8; | |
452 | } | |
453 | if (n == 32) { | |
454 | gdb_get_reg32(buf, env->fpscr); | |
455 | mem_buf = gdb_get_reg_ptr(buf, 4); | |
456 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
457 | return 4; | |
458 | } | |
459 | return 0; | |
460 | } | |
461 | ||
462 | static int gdb_set_float_reg(CPUPPCState *env, uint8_t *mem_buf, int n) | |
463 | { | |
464 | if (n < 32) { | |
465 | ppc_maybe_bswap_register(env, mem_buf, 8); | |
466 | *cpu_fpr_ptr(env, n) = ldq_p(mem_buf); | |
467 | return 8; | |
468 | } | |
469 | if (n == 32) { | |
470 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
fe43ba97 | 471 | ppc_store_fpscr(env, ldl_p(mem_buf)); |
35a5d74e BL |
472 | return 4; |
473 | } | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int gdb_get_avr_reg(CPUPPCState *env, GByteArray *buf, int n) | |
478 | { | |
479 | uint8_t *mem_buf; | |
480 | ||
481 | if (n < 32) { | |
482 | ppc_avr_t *avr = cpu_avr_ptr(env, n); | |
0ff16b6b | 483 | gdb_get_reg128(buf, avr->VsrD(0), avr->VsrD(1)); |
35a5d74e | 484 | mem_buf = gdb_get_reg_ptr(buf, 16); |
0ff16b6b | 485 | ppc_maybe_bswap_register(env, mem_buf, 16); |
35a5d74e BL |
486 | return 16; |
487 | } | |
488 | if (n == 32) { | |
c19940db | 489 | gdb_get_reg32(buf, ppc_get_vscr(env)); |
35a5d74e BL |
490 | mem_buf = gdb_get_reg_ptr(buf, 4); |
491 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
492 | return 4; | |
493 | } | |
494 | if (n == 33) { | |
495 | gdb_get_reg32(buf, (uint32_t)env->spr[SPR_VRSAVE]); | |
496 | mem_buf = gdb_get_reg_ptr(buf, 4); | |
497 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
498 | return 4; | |
499 | } | |
500 | return 0; | |
501 | } | |
502 | ||
503 | static int gdb_set_avr_reg(CPUPPCState *env, uint8_t *mem_buf, int n) | |
504 | { | |
505 | if (n < 32) { | |
506 | ppc_avr_t *avr = cpu_avr_ptr(env, n); | |
0ff16b6b MF |
507 | ppc_maybe_bswap_register(env, mem_buf, 16); |
508 | avr->VsrD(0) = ldq_p(mem_buf); | |
509 | avr->VsrD(1) = ldq_p(mem_buf + 8); | |
35a5d74e BL |
510 | return 16; |
511 | } | |
512 | if (n == 32) { | |
513 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
c19940db | 514 | ppc_store_vscr(env, ldl_p(mem_buf)); |
35a5d74e BL |
515 | return 4; |
516 | } | |
517 | if (n == 33) { | |
518 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
519 | env->spr[SPR_VRSAVE] = (target_ulong)ldl_p(mem_buf); | |
520 | return 4; | |
521 | } | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int gdb_get_spe_reg(CPUPPCState *env, GByteArray *buf, int n) | |
526 | { | |
527 | if (n < 32) { | |
528 | #if defined(TARGET_PPC64) | |
529 | gdb_get_reg32(buf, env->gpr[n] >> 32); | |
530 | ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 4), 4); | |
531 | #else | |
532 | gdb_get_reg32(buf, env->gprh[n]); | |
533 | #endif | |
534 | return 4; | |
535 | } | |
536 | if (n == 32) { | |
537 | gdb_get_reg64(buf, env->spe_acc); | |
538 | ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 8), 8); | |
539 | return 8; | |
540 | } | |
541 | if (n == 33) { | |
542 | gdb_get_reg32(buf, env->spe_fscr); | |
543 | ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 4), 4); | |
544 | return 4; | |
545 | } | |
546 | return 0; | |
547 | } | |
548 | ||
549 | static int gdb_set_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n) | |
550 | { | |
551 | if (n < 32) { | |
552 | #if defined(TARGET_PPC64) | |
553 | target_ulong lo = (uint32_t)env->gpr[n]; | |
554 | target_ulong hi; | |
555 | ||
556 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
557 | ||
558 | hi = (target_ulong)ldl_p(mem_buf) << 32; | |
559 | env->gpr[n] = lo | hi; | |
560 | #else | |
561 | env->gprh[n] = ldl_p(mem_buf); | |
562 | #endif | |
563 | return 4; | |
564 | } | |
565 | if (n == 32) { | |
566 | ppc_maybe_bswap_register(env, mem_buf, 8); | |
567 | env->spe_acc = ldq_p(mem_buf); | |
568 | return 8; | |
569 | } | |
570 | if (n == 33) { | |
571 | ppc_maybe_bswap_register(env, mem_buf, 4); | |
572 | env->spe_fscr = ldl_p(mem_buf); | |
573 | return 4; | |
574 | } | |
575 | return 0; | |
576 | } | |
577 | ||
578 | static int gdb_get_vsx_reg(CPUPPCState *env, GByteArray *buf, int n) | |
579 | { | |
580 | if (n < 32) { | |
581 | gdb_get_reg64(buf, *cpu_vsrl_ptr(env, n)); | |
582 | ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 8), 8); | |
583 | return 8; | |
584 | } | |
585 | return 0; | |
586 | } | |
587 | ||
588 | static int gdb_set_vsx_reg(CPUPPCState *env, uint8_t *mem_buf, int n) | |
589 | { | |
590 | if (n < 32) { | |
591 | ppc_maybe_bswap_register(env, mem_buf, 8); | |
592 | *cpu_vsrl_ptr(env, n) = ldq_p(mem_buf); | |
593 | return 8; | |
594 | } | |
595 | return 0; | |
596 | } | |
597 | ||
598 | gchar *ppc_gdb_arch_name(CPUState *cs) | |
599 | { | |
600 | #if defined(TARGET_PPC64) | |
601 | return g_strdup("powerpc:common64"); | |
602 | #else | |
603 | return g_strdup("powerpc:common"); | |
604 | #endif | |
605 | } | |
606 | ||
607 | void ppc_gdb_init(CPUState *cs, PowerPCCPUClass *pcc) | |
608 | { | |
609 | if (pcc->insns_flags & PPC_FLOAT) { | |
610 | gdb_register_coprocessor(cs, gdb_get_float_reg, gdb_set_float_reg, | |
611 | 33, "power-fpu.xml", 0); | |
612 | } | |
613 | if (pcc->insns_flags & PPC_ALTIVEC) { | |
614 | gdb_register_coprocessor(cs, gdb_get_avr_reg, gdb_set_avr_reg, | |
615 | 34, "power-altivec.xml", 0); | |
616 | } | |
617 | if (pcc->insns_flags & PPC_SPE) { | |
618 | gdb_register_coprocessor(cs, gdb_get_spe_reg, gdb_set_spe_reg, | |
619 | 34, "power-spe.xml", 0); | |
620 | } | |
621 | if (pcc->insns_flags2 & PPC2_VSX) { | |
622 | gdb_register_coprocessor(cs, gdb_get_vsx_reg, gdb_set_vsx_reg, | |
623 | 32, "power-vsx.xml", 0); | |
624 | } | |
625 | #ifndef CONFIG_USER_ONLY | |
626 | gdb_register_coprocessor(cs, gdb_get_spr_reg, gdb_set_spr_reg, | |
627 | pcc->gdb_num_sprs, "power-spr.xml", 0); | |
628 | #endif | |
629 | } |