blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * qemu user main |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 18 | */ |
| 19 | #include <stdlib.h> |
| 20 | #include <stdio.h> |
| 21 | #include <stdarg.h> |
| 22 | #include <string.h> |
| 23 | #include <errno.h> |
| 24 | #include <unistd.h> |
| 25 | #include <machine/trap.h> |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 26 | #include <sys/types.h> |
| 27 | #include <sys/mman.h> |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 28 | |
| 29 | #include "qemu.h" |
| 30 | #include "qemu-common.h" |
| 31 | /* For tb_lock */ |
| 32 | #include "exec-all.h" |
| 33 | |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 34 | |
| 35 | #include "envlist.h" |
| 36 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 37 | #define DEBUG_LOGFILE "/tmp/qemu.log" |
| 38 | |
aurel32 | 1b530a6 | 2009-04-05 20:08:59 +0000 | [diff] [blame] | 39 | int singlestep; |
| 40 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 41 | static const char *interp_prefix = CONFIG_QEMU_PREFIX; |
| 42 | const char *qemu_uname_release = CONFIG_UNAME_RELEASE; |
| 43 | extern char **environ; |
| 44 | |
| 45 | /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
| 46 | we allocate a bigger stack. Need a better solution, for example |
| 47 | by remapping the process stack directly at the right place */ |
| 48 | unsigned long x86_stack_size = 512 * 1024; |
| 49 | |
| 50 | void gemu_log(const char *fmt, ...) |
| 51 | { |
| 52 | va_list ap; |
| 53 | |
| 54 | va_start(ap, fmt); |
| 55 | vfprintf(stderr, fmt, ap); |
| 56 | va_end(ap); |
| 57 | } |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 58 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 59 | #if defined(TARGET_I386) |
| 60 | int cpu_get_pic_interrupt(CPUState *env) |
| 61 | { |
| 62 | return -1; |
| 63 | } |
| 64 | #endif |
| 65 | |
blueswir1 | 9399f09 | 2009-03-07 18:59:05 +0000 | [diff] [blame] | 66 | /* These are no-ops because we are not threadsafe. */ |
| 67 | static inline void cpu_exec_start(CPUState *env) |
| 68 | { |
| 69 | } |
| 70 | |
| 71 | static inline void cpu_exec_end(CPUState *env) |
| 72 | { |
| 73 | } |
| 74 | |
| 75 | static inline void start_exclusive(void) |
| 76 | { |
| 77 | } |
| 78 | |
| 79 | static inline void end_exclusive(void) |
| 80 | { |
| 81 | } |
| 82 | |
| 83 | void fork_start(void) |
| 84 | { |
| 85 | } |
| 86 | |
| 87 | void fork_end(int child) |
| 88 | { |
| 89 | if (child) { |
| 90 | gdbserver_fork(thread_env); |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | void cpu_list_lock(void) |
| 95 | { |
| 96 | } |
| 97 | |
| 98 | void cpu_list_unlock(void) |
| 99 | { |
| 100 | } |
| 101 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 102 | #ifdef TARGET_I386 |
| 103 | /***********************************************************/ |
| 104 | /* CPUX86 core interface */ |
| 105 | |
| 106 | void cpu_smm_update(CPUState *env) |
| 107 | { |
| 108 | } |
| 109 | |
| 110 | uint64_t cpu_get_tsc(CPUX86State *env) |
| 111 | { |
| 112 | return cpu_get_real_ticks(); |
| 113 | } |
| 114 | |
| 115 | static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
| 116 | int flags) |
| 117 | { |
| 118 | unsigned int e1, e2; |
| 119 | uint32_t *p; |
| 120 | e1 = (addr << 16) | (limit & 0xffff); |
| 121 | e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); |
| 122 | e2 |= flags; |
| 123 | p = ptr; |
| 124 | p[0] = tswap32(e1); |
| 125 | p[1] = tswap32(e2); |
| 126 | } |
| 127 | |
| 128 | static uint64_t *idt_table; |
| 129 | #ifdef TARGET_X86_64 |
| 130 | static void set_gate64(void *ptr, unsigned int type, unsigned int dpl, |
| 131 | uint64_t addr, unsigned int sel) |
| 132 | { |
| 133 | uint32_t *p, e1, e2; |
| 134 | e1 = (addr & 0xffff) | (sel << 16); |
| 135 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
| 136 | p = ptr; |
| 137 | p[0] = tswap32(e1); |
| 138 | p[1] = tswap32(e2); |
| 139 | p[2] = tswap32(addr >> 32); |
| 140 | p[3] = 0; |
| 141 | } |
| 142 | /* only dpl matters as we do only user space emulation */ |
| 143 | static void set_idt(int n, unsigned int dpl) |
| 144 | { |
| 145 | set_gate64(idt_table + n * 2, 0, dpl, 0, 0); |
| 146 | } |
| 147 | #else |
| 148 | static void set_gate(void *ptr, unsigned int type, unsigned int dpl, |
| 149 | uint32_t addr, unsigned int sel) |
| 150 | { |
| 151 | uint32_t *p, e1, e2; |
| 152 | e1 = (addr & 0xffff) | (sel << 16); |
| 153 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
| 154 | p = ptr; |
| 155 | p[0] = tswap32(e1); |
| 156 | p[1] = tswap32(e2); |
| 157 | } |
| 158 | |
| 159 | /* only dpl matters as we do only user space emulation */ |
| 160 | static void set_idt(int n, unsigned int dpl) |
| 161 | { |
| 162 | set_gate(idt_table + n, 0, dpl, 0, 0); |
| 163 | } |
| 164 | #endif |
| 165 | |
| 166 | void cpu_loop(CPUX86State *env, enum BSDType bsd_type) |
| 167 | { |
| 168 | int trapnr; |
| 169 | abi_ulong pc; |
| 170 | //target_siginfo_t info; |
| 171 | |
| 172 | for(;;) { |
| 173 | trapnr = cpu_x86_exec(env); |
| 174 | switch(trapnr) { |
| 175 | case 0x80: |
| 176 | /* syscall from int $0x80 */ |
| 177 | env->regs[R_EAX] = do_openbsd_syscall(env, |
| 178 | env->regs[R_EAX], |
| 179 | env->regs[R_EBX], |
| 180 | env->regs[R_ECX], |
| 181 | env->regs[R_EDX], |
| 182 | env->regs[R_ESI], |
| 183 | env->regs[R_EDI], |
| 184 | env->regs[R_EBP]); |
| 185 | break; |
| 186 | #ifndef TARGET_ABI32 |
| 187 | case EXCP_SYSCALL: |
| 188 | /* linux syscall from syscall intruction */ |
| 189 | env->regs[R_EAX] = do_openbsd_syscall(env, |
| 190 | env->regs[R_EAX], |
| 191 | env->regs[R_EDI], |
| 192 | env->regs[R_ESI], |
| 193 | env->regs[R_EDX], |
| 194 | env->regs[10], |
| 195 | env->regs[8], |
| 196 | env->regs[9]); |
| 197 | env->eip = env->exception_next_eip; |
| 198 | break; |
| 199 | #endif |
| 200 | #if 0 |
| 201 | case EXCP0B_NOSEG: |
| 202 | case EXCP0C_STACK: |
| 203 | info.si_signo = SIGBUS; |
| 204 | info.si_errno = 0; |
| 205 | info.si_code = TARGET_SI_KERNEL; |
| 206 | info._sifields._sigfault._addr = 0; |
| 207 | queue_signal(env, info.si_signo, &info); |
| 208 | break; |
| 209 | case EXCP0D_GPF: |
| 210 | /* XXX: potential problem if ABI32 */ |
| 211 | #ifndef TARGET_X86_64 |
| 212 | if (env->eflags & VM_MASK) { |
| 213 | handle_vm86_fault(env); |
| 214 | } else |
| 215 | #endif |
| 216 | { |
| 217 | info.si_signo = SIGSEGV; |
| 218 | info.si_errno = 0; |
| 219 | info.si_code = TARGET_SI_KERNEL; |
| 220 | info._sifields._sigfault._addr = 0; |
| 221 | queue_signal(env, info.si_signo, &info); |
| 222 | } |
| 223 | break; |
| 224 | case EXCP0E_PAGE: |
| 225 | info.si_signo = SIGSEGV; |
| 226 | info.si_errno = 0; |
| 227 | if (!(env->error_code & 1)) |
| 228 | info.si_code = TARGET_SEGV_MAPERR; |
| 229 | else |
| 230 | info.si_code = TARGET_SEGV_ACCERR; |
| 231 | info._sifields._sigfault._addr = env->cr[2]; |
| 232 | queue_signal(env, info.si_signo, &info); |
| 233 | break; |
| 234 | case EXCP00_DIVZ: |
| 235 | #ifndef TARGET_X86_64 |
| 236 | if (env->eflags & VM_MASK) { |
| 237 | handle_vm86_trap(env, trapnr); |
| 238 | } else |
| 239 | #endif |
| 240 | { |
| 241 | /* division by zero */ |
| 242 | info.si_signo = SIGFPE; |
| 243 | info.si_errno = 0; |
| 244 | info.si_code = TARGET_FPE_INTDIV; |
| 245 | info._sifields._sigfault._addr = env->eip; |
| 246 | queue_signal(env, info.si_signo, &info); |
| 247 | } |
| 248 | break; |
| 249 | case EXCP01_DB: |
| 250 | case EXCP03_INT3: |
| 251 | #ifndef TARGET_X86_64 |
| 252 | if (env->eflags & VM_MASK) { |
| 253 | handle_vm86_trap(env, trapnr); |
| 254 | } else |
| 255 | #endif |
| 256 | { |
| 257 | info.si_signo = SIGTRAP; |
| 258 | info.si_errno = 0; |
| 259 | if (trapnr == EXCP01_DB) { |
| 260 | info.si_code = TARGET_TRAP_BRKPT; |
| 261 | info._sifields._sigfault._addr = env->eip; |
| 262 | } else { |
| 263 | info.si_code = TARGET_SI_KERNEL; |
| 264 | info._sifields._sigfault._addr = 0; |
| 265 | } |
| 266 | queue_signal(env, info.si_signo, &info); |
| 267 | } |
| 268 | break; |
| 269 | case EXCP04_INTO: |
| 270 | case EXCP05_BOUND: |
| 271 | #ifndef TARGET_X86_64 |
| 272 | if (env->eflags & VM_MASK) { |
| 273 | handle_vm86_trap(env, trapnr); |
| 274 | } else |
| 275 | #endif |
| 276 | { |
| 277 | info.si_signo = SIGSEGV; |
| 278 | info.si_errno = 0; |
| 279 | info.si_code = TARGET_SI_KERNEL; |
| 280 | info._sifields._sigfault._addr = 0; |
| 281 | queue_signal(env, info.si_signo, &info); |
| 282 | } |
| 283 | break; |
| 284 | case EXCP06_ILLOP: |
| 285 | info.si_signo = SIGILL; |
| 286 | info.si_errno = 0; |
| 287 | info.si_code = TARGET_ILL_ILLOPN; |
| 288 | info._sifields._sigfault._addr = env->eip; |
| 289 | queue_signal(env, info.si_signo, &info); |
| 290 | break; |
| 291 | #endif |
| 292 | case EXCP_INTERRUPT: |
| 293 | /* just indicate that signals should be handled asap */ |
| 294 | break; |
| 295 | #if 0 |
| 296 | case EXCP_DEBUG: |
| 297 | { |
| 298 | int sig; |
| 299 | |
| 300 | sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 301 | if (sig) |
| 302 | { |
| 303 | info.si_signo = sig; |
| 304 | info.si_errno = 0; |
| 305 | info.si_code = TARGET_TRAP_BRKPT; |
| 306 | queue_signal(env, info.si_signo, &info); |
| 307 | } |
| 308 | } |
| 309 | break; |
| 310 | #endif |
| 311 | default: |
| 312 | pc = env->segs[R_CS].base + env->eip; |
| 313 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
| 314 | (long)pc, trapnr); |
| 315 | abort(); |
| 316 | } |
| 317 | process_pending_signals(env); |
| 318 | } |
| 319 | } |
| 320 | #endif |
| 321 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 322 | #ifdef TARGET_SPARC |
| 323 | #define SPARC64_STACK_BIAS 2047 |
| 324 | |
| 325 | //#define DEBUG_WIN |
| 326 | /* WARNING: dealing with register windows _is_ complicated. More info |
| 327 | can be found at http://www.sics.se/~psm/sparcstack.html */ |
| 328 | static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
| 329 | { |
| 330 | index = (index + cwp * 16) % (16 * env->nwindows); |
| 331 | /* wrap handling : if cwp is on the last window, then we use the |
| 332 | registers 'after' the end */ |
| 333 | if (index < 8 && env->cwp == env->nwindows - 1) |
| 334 | index += 16 * env->nwindows; |
| 335 | return index; |
| 336 | } |
| 337 | |
| 338 | /* save the register window 'cwp1' */ |
| 339 | static inline void save_window_offset(CPUSPARCState *env, int cwp1) |
| 340 | { |
| 341 | unsigned int i; |
| 342 | abi_ulong sp_ptr; |
| 343 | |
| 344 | sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; |
| 345 | #ifdef TARGET_SPARC64 |
| 346 | if (sp_ptr & 3) |
| 347 | sp_ptr += SPARC64_STACK_BIAS; |
| 348 | #endif |
| 349 | #if defined(DEBUG_WIN) |
| 350 | printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", |
| 351 | sp_ptr, cwp1); |
| 352 | #endif |
| 353 | for(i = 0; i < 16; i++) { |
| 354 | /* FIXME - what to do if put_user() fails? */ |
| 355 | put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); |
| 356 | sp_ptr += sizeof(abi_ulong); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | static void save_window(CPUSPARCState *env) |
| 361 | { |
| 362 | #ifndef TARGET_SPARC64 |
| 363 | unsigned int new_wim; |
| 364 | new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & |
| 365 | ((1LL << env->nwindows) - 1); |
| 366 | save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); |
| 367 | env->wim = new_wim; |
| 368 | #else |
| 369 | save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2)); |
| 370 | env->cansave++; |
| 371 | env->canrestore--; |
| 372 | #endif |
| 373 | } |
| 374 | |
| 375 | static void restore_window(CPUSPARCState *env) |
| 376 | { |
| 377 | #ifndef TARGET_SPARC64 |
| 378 | unsigned int new_wim; |
| 379 | #endif |
| 380 | unsigned int i, cwp1; |
| 381 | abi_ulong sp_ptr; |
| 382 | |
| 383 | #ifndef TARGET_SPARC64 |
| 384 | new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & |
| 385 | ((1LL << env->nwindows) - 1); |
| 386 | #endif |
| 387 | |
| 388 | /* restore the invalid window */ |
| 389 | cwp1 = cpu_cwp_inc(env, env->cwp + 1); |
| 390 | sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; |
| 391 | #ifdef TARGET_SPARC64 |
| 392 | if (sp_ptr & 3) |
| 393 | sp_ptr += SPARC64_STACK_BIAS; |
| 394 | #endif |
| 395 | #if defined(DEBUG_WIN) |
| 396 | printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", |
| 397 | sp_ptr, cwp1); |
| 398 | #endif |
| 399 | for(i = 0; i < 16; i++) { |
| 400 | /* FIXME - what to do if get_user() fails? */ |
| 401 | get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); |
| 402 | sp_ptr += sizeof(abi_ulong); |
| 403 | } |
| 404 | #ifdef TARGET_SPARC64 |
| 405 | env->canrestore++; |
| 406 | if (env->cleanwin < env->nwindows - 1) |
| 407 | env->cleanwin++; |
| 408 | env->cansave--; |
| 409 | #else |
| 410 | env->wim = new_wim; |
| 411 | #endif |
| 412 | } |
| 413 | |
| 414 | static void flush_windows(CPUSPARCState *env) |
| 415 | { |
| 416 | int offset, cwp1; |
| 417 | |
| 418 | offset = 1; |
| 419 | for(;;) { |
| 420 | /* if restore would invoke restore_window(), then we can stop */ |
| 421 | cwp1 = cpu_cwp_inc(env, env->cwp + offset); |
| 422 | #ifndef TARGET_SPARC64 |
| 423 | if (env->wim & (1 << cwp1)) |
| 424 | break; |
| 425 | #else |
| 426 | if (env->canrestore == 0) |
| 427 | break; |
| 428 | env->cansave++; |
| 429 | env->canrestore--; |
| 430 | #endif |
| 431 | save_window_offset(env, cwp1); |
| 432 | offset++; |
| 433 | } |
| 434 | cwp1 = cpu_cwp_inc(env, env->cwp + 1); |
| 435 | #ifndef TARGET_SPARC64 |
| 436 | /* set wim so that restore will reload the registers */ |
| 437 | env->wim = 1 << cwp1; |
| 438 | #endif |
| 439 | #if defined(DEBUG_WIN) |
| 440 | printf("flush_windows: nb=%d\n", offset - 1); |
| 441 | #endif |
| 442 | } |
| 443 | |
| 444 | void cpu_loop(CPUSPARCState *env, enum BSDType bsd_type) |
| 445 | { |
| 446 | int trapnr, ret, syscall_nr; |
| 447 | //target_siginfo_t info; |
| 448 | |
| 449 | while (1) { |
| 450 | trapnr = cpu_sparc_exec (env); |
| 451 | |
| 452 | switch (trapnr) { |
blueswir1 | 77b9435 | 2008-11-16 11:38:43 +0000 | [diff] [blame] | 453 | #ifndef TARGET_SPARC64 |
| 454 | case 0x80: |
| 455 | #else |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 456 | case 0x100: |
blueswir1 | 77b9435 | 2008-11-16 11:38:43 +0000 | [diff] [blame] | 457 | #endif |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 458 | syscall_nr = env->gregs[1]; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 459 | if (bsd_type == target_freebsd) |
| 460 | ret = do_freebsd_syscall(env, syscall_nr, |
| 461 | env->regwptr[0], env->regwptr[1], |
| 462 | env->regwptr[2], env->regwptr[3], |
| 463 | env->regwptr[4], env->regwptr[5]); |
| 464 | else if (bsd_type == target_netbsd) |
| 465 | ret = do_netbsd_syscall(env, syscall_nr, |
| 466 | env->regwptr[0], env->regwptr[1], |
| 467 | env->regwptr[2], env->regwptr[3], |
| 468 | env->regwptr[4], env->regwptr[5]); |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 469 | else { //if (bsd_type == target_openbsd) |
| 470 | #if defined(TARGET_SPARC64) |
| 471 | syscall_nr &= ~(TARGET_OPENBSD_SYSCALL_G7RFLAG | |
| 472 | TARGET_OPENBSD_SYSCALL_G2RFLAG); |
| 473 | #endif |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 474 | ret = do_openbsd_syscall(env, syscall_nr, |
| 475 | env->regwptr[0], env->regwptr[1], |
| 476 | env->regwptr[2], env->regwptr[3], |
| 477 | env->regwptr[4], env->regwptr[5]); |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 478 | } |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 479 | if ((unsigned int)ret >= (unsigned int)(-515)) { |
| 480 | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| 481 | env->xcc |= PSR_CARRY; |
| 482 | #else |
| 483 | env->psr |= PSR_CARRY; |
| 484 | #endif |
| 485 | } else { |
| 486 | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| 487 | env->xcc &= ~PSR_CARRY; |
| 488 | #else |
| 489 | env->psr &= ~PSR_CARRY; |
| 490 | #endif |
| 491 | } |
| 492 | env->regwptr[0] = ret; |
| 493 | /* next instruction */ |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 494 | #if defined(TARGET_SPARC64) |
| 495 | if (bsd_type == target_openbsd && |
| 496 | env->gregs[1] & TARGET_OPENBSD_SYSCALL_G2RFLAG) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 497 | env->pc = env->gregs[2]; |
| 498 | env->npc = env->pc + 4; |
blueswir1 | cdba95b | 2008-11-22 20:34:45 +0000 | [diff] [blame] | 499 | } else if (bsd_type == target_openbsd && |
| 500 | env->gregs[1] & TARGET_OPENBSD_SYSCALL_G7RFLAG) { |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 501 | env->pc = env->gregs[7]; |
| 502 | env->npc = env->pc + 4; |
| 503 | } else { |
| 504 | env->pc = env->npc; |
| 505 | env->npc = env->npc + 4; |
| 506 | } |
| 507 | #else |
| 508 | env->pc = env->npc; |
| 509 | env->npc = env->npc + 4; |
| 510 | #endif |
| 511 | break; |
| 512 | case 0x83: /* flush windows */ |
| 513 | #ifdef TARGET_ABI32 |
| 514 | case 0x103: |
| 515 | #endif |
| 516 | flush_windows(env); |
| 517 | /* next instruction */ |
| 518 | env->pc = env->npc; |
| 519 | env->npc = env->npc + 4; |
| 520 | break; |
| 521 | #ifndef TARGET_SPARC64 |
| 522 | case TT_WIN_OVF: /* window overflow */ |
| 523 | save_window(env); |
| 524 | break; |
| 525 | case TT_WIN_UNF: /* window underflow */ |
| 526 | restore_window(env); |
| 527 | break; |
| 528 | case TT_TFAULT: |
| 529 | case TT_DFAULT: |
| 530 | #if 0 |
| 531 | { |
| 532 | info.si_signo = SIGSEGV; |
| 533 | info.si_errno = 0; |
| 534 | /* XXX: check env->error_code */ |
| 535 | info.si_code = TARGET_SEGV_MAPERR; |
| 536 | info._sifields._sigfault._addr = env->mmuregs[4]; |
| 537 | queue_signal(env, info.si_signo, &info); |
| 538 | } |
| 539 | #endif |
| 540 | break; |
| 541 | #else |
| 542 | case TT_SPILL: /* window overflow */ |
| 543 | save_window(env); |
| 544 | break; |
| 545 | case TT_FILL: /* window underflow */ |
| 546 | restore_window(env); |
| 547 | break; |
| 548 | case TT_TFAULT: |
| 549 | case TT_DFAULT: |
| 550 | #if 0 |
| 551 | { |
| 552 | info.si_signo = SIGSEGV; |
| 553 | info.si_errno = 0; |
| 554 | /* XXX: check env->error_code */ |
| 555 | info.si_code = TARGET_SEGV_MAPERR; |
| 556 | if (trapnr == TT_DFAULT) |
| 557 | info._sifields._sigfault._addr = env->dmmuregs[4]; |
| 558 | else |
| 559 | info._sifields._sigfault._addr = env->tsptr->tpc; |
| 560 | //queue_signal(env, info.si_signo, &info); |
| 561 | } |
| 562 | #endif |
| 563 | break; |
| 564 | #endif |
| 565 | case EXCP_INTERRUPT: |
| 566 | /* just indicate that signals should be handled asap */ |
| 567 | break; |
| 568 | case EXCP_DEBUG: |
| 569 | { |
| 570 | int sig; |
| 571 | |
| 572 | sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 573 | #if 0 |
| 574 | if (sig) |
| 575 | { |
| 576 | info.si_signo = sig; |
| 577 | info.si_errno = 0; |
| 578 | info.si_code = TARGET_TRAP_BRKPT; |
| 579 | //queue_signal(env, info.si_signo, &info); |
| 580 | } |
| 581 | #endif |
| 582 | } |
| 583 | break; |
| 584 | default: |
| 585 | printf ("Unhandled trap: 0x%x\n", trapnr); |
| 586 | cpu_dump_state(env, stderr, fprintf, 0); |
| 587 | exit (1); |
| 588 | } |
| 589 | process_pending_signals (env); |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | #endif |
| 594 | |
| 595 | static void usage(void) |
| 596 | { |
| 597 | printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" |
| 598 | "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" |
| 599 | "BSD CPU emulator (compiled for %s emulation)\n" |
| 600 | "\n" |
| 601 | "Standard options:\n" |
| 602 | "-h print this help\n" |
| 603 | "-g port wait gdb connection to port\n" |
| 604 | "-L path set the elf interpreter prefix (default=%s)\n" |
| 605 | "-s size set the stack size in bytes (default=%ld)\n" |
| 606 | "-cpu model select CPU (-cpu ? for list)\n" |
| 607 | "-drop-ld-preload drop LD_PRELOAD for target process\n" |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 608 | "-E var=value sets/modifies targets environment variable(s)\n" |
| 609 | "-U var unsets targets environment variable(s)\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 610 | "-bsd type select emulated BSD type FreeBSD/NetBSD/OpenBSD (default)\n" |
| 611 | "\n" |
| 612 | "Debug options:\n" |
| 613 | "-d options activate log (logfile=%s)\n" |
| 614 | "-p pagesize set the host page size to 'pagesize'\n" |
aurel32 | 1b530a6 | 2009-04-05 20:08:59 +0000 | [diff] [blame] | 615 | "-singlestep always run in singlestep mode\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 616 | "-strace log system calls\n" |
| 617 | "\n" |
| 618 | "Environment variables:\n" |
| 619 | "QEMU_STRACE Print system calls and arguments similar to the\n" |
| 620 | " 'strace' program. Enable by setting to any value.\n" |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 621 | "You can use -E and -U options to set/unset environment variables\n" |
| 622 | "for target process. It is possible to provide several variables\n" |
| 623 | "by repeating the option. For example:\n" |
| 624 | " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n" |
| 625 | "Note that if you provide several changes to single variable\n" |
| 626 | "last change will stay in effect.\n" |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 627 | , |
| 628 | TARGET_ARCH, |
| 629 | interp_prefix, |
| 630 | x86_stack_size, |
| 631 | DEBUG_LOGFILE); |
blueswir1 | 2d18e63 | 2009-02-28 20:14:00 +0000 | [diff] [blame] | 632 | exit(1); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 633 | } |
| 634 | |
| 635 | THREAD CPUState *thread_env; |
| 636 | |
| 637 | /* Assumes contents are already zeroed. */ |
| 638 | void init_task_state(TaskState *ts) |
| 639 | { |
| 640 | int i; |
| 641 | |
| 642 | ts->used = 1; |
| 643 | ts->first_free = ts->sigqueue_table; |
| 644 | for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { |
| 645 | ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1]; |
| 646 | } |
| 647 | ts->sigqueue_table[i].next = NULL; |
| 648 | } |
| 649 | |
| 650 | int main(int argc, char **argv) |
| 651 | { |
| 652 | const char *filename; |
| 653 | const char *cpu_model; |
| 654 | struct target_pt_regs regs1, *regs = ®s1; |
| 655 | struct image_info info1, *info = &info1; |
| 656 | TaskState ts1, *ts = &ts1; |
| 657 | CPUState *env; |
| 658 | int optind; |
| 659 | const char *r; |
| 660 | int gdbstub_port = 0; |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 661 | char **target_environ, **wrk; |
| 662 | envlist_t *envlist = NULL; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 663 | enum BSDType bsd_type = target_openbsd; |
| 664 | |
| 665 | if (argc <= 1) |
| 666 | usage(); |
| 667 | |
| 668 | /* init debug */ |
| 669 | cpu_set_log_filename(DEBUG_LOGFILE); |
| 670 | |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 671 | if ((envlist = envlist_create()) == NULL) { |
| 672 | (void) fprintf(stderr, "Unable to allocate envlist\n"); |
| 673 | exit(1); |
| 674 | } |
| 675 | |
| 676 | /* add current environment into the list */ |
| 677 | for (wrk = environ; *wrk != NULL; wrk++) { |
| 678 | (void) envlist_setenv(envlist, *wrk); |
| 679 | } |
| 680 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 681 | cpu_model = NULL; |
| 682 | optind = 1; |
| 683 | for(;;) { |
| 684 | if (optind >= argc) |
| 685 | break; |
| 686 | r = argv[optind]; |
| 687 | if (r[0] != '-') |
| 688 | break; |
| 689 | optind++; |
| 690 | r++; |
| 691 | if (!strcmp(r, "-")) { |
| 692 | break; |
| 693 | } else if (!strcmp(r, "d")) { |
| 694 | int mask; |
| 695 | const CPULogItem *item; |
| 696 | |
| 697 | if (optind >= argc) |
| 698 | break; |
| 699 | |
| 700 | r = argv[optind++]; |
| 701 | mask = cpu_str_to_log_mask(r); |
| 702 | if (!mask) { |
| 703 | printf("Log items (comma separated):\n"); |
| 704 | for(item = cpu_log_items; item->mask != 0; item++) { |
| 705 | printf("%-10s %s\n", item->name, item->help); |
| 706 | } |
| 707 | exit(1); |
| 708 | } |
| 709 | cpu_set_log(mask); |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 710 | } else if (!strcmp(r, "E")) { |
| 711 | r = argv[optind++]; |
| 712 | if (envlist_setenv(envlist, r) != 0) |
| 713 | usage(); |
| 714 | } else if (!strcmp(r, "U")) { |
| 715 | r = argv[optind++]; |
| 716 | if (envlist_unsetenv(envlist, r) != 0) |
| 717 | usage(); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 718 | } else if (!strcmp(r, "s")) { |
| 719 | r = argv[optind++]; |
| 720 | x86_stack_size = strtol(r, (char **)&r, 0); |
| 721 | if (x86_stack_size <= 0) |
| 722 | usage(); |
| 723 | if (*r == 'M') |
| 724 | x86_stack_size *= 1024 * 1024; |
| 725 | else if (*r == 'k' || *r == 'K') |
| 726 | x86_stack_size *= 1024; |
| 727 | } else if (!strcmp(r, "L")) { |
| 728 | interp_prefix = argv[optind++]; |
| 729 | } else if (!strcmp(r, "p")) { |
| 730 | qemu_host_page_size = atoi(argv[optind++]); |
| 731 | if (qemu_host_page_size == 0 || |
| 732 | (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { |
| 733 | fprintf(stderr, "page size must be a power of two\n"); |
| 734 | exit(1); |
| 735 | } |
| 736 | } else if (!strcmp(r, "g")) { |
| 737 | gdbstub_port = atoi(argv[optind++]); |
| 738 | } else if (!strcmp(r, "r")) { |
| 739 | qemu_uname_release = argv[optind++]; |
| 740 | } else if (!strcmp(r, "cpu")) { |
| 741 | cpu_model = argv[optind++]; |
| 742 | if (strcmp(cpu_model, "?") == 0) { |
| 743 | /* XXX: implement xxx_cpu_list for targets that still miss it */ |
| 744 | #if defined(cpu_list) |
| 745 | cpu_list(stdout, &fprintf); |
| 746 | #endif |
blueswir1 | 2d18e63 | 2009-02-28 20:14:00 +0000 | [diff] [blame] | 747 | exit(1); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 748 | } |
| 749 | } else if (!strcmp(r, "drop-ld-preload")) { |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 750 | (void) envlist_unsetenv(envlist, "LD_PRELOAD"); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 751 | } else if (!strcmp(r, "bsd")) { |
| 752 | if (!strcasecmp(argv[optind], "freebsd")) { |
| 753 | bsd_type = target_freebsd; |
| 754 | } else if (!strcasecmp(argv[optind], "netbsd")) { |
| 755 | bsd_type = target_netbsd; |
| 756 | } else if (!strcasecmp(argv[optind], "openbsd")) { |
| 757 | bsd_type = target_openbsd; |
| 758 | } else { |
| 759 | usage(); |
| 760 | } |
| 761 | optind++; |
aurel32 | 1b530a6 | 2009-04-05 20:08:59 +0000 | [diff] [blame] | 762 | } else if (!strcmp(r, "singlestep")) { |
| 763 | singlestep = 1; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 764 | } else if (!strcmp(r, "strace")) { |
| 765 | do_strace = 1; |
| 766 | } else |
| 767 | { |
| 768 | usage(); |
| 769 | } |
| 770 | } |
| 771 | if (optind >= argc) |
| 772 | usage(); |
| 773 | filename = argv[optind]; |
| 774 | |
| 775 | /* Zero out regs */ |
| 776 | memset(regs, 0, sizeof(struct target_pt_regs)); |
| 777 | |
| 778 | /* Zero out image_info */ |
| 779 | memset(info, 0, sizeof(struct image_info)); |
| 780 | |
| 781 | /* Scan interp_prefix dir for replacement files. */ |
| 782 | init_paths(interp_prefix); |
| 783 | |
| 784 | if (cpu_model == NULL) { |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 785 | #if defined(TARGET_I386) |
| 786 | #ifdef TARGET_X86_64 |
| 787 | cpu_model = "qemu64"; |
| 788 | #else |
| 789 | cpu_model = "qemu32"; |
| 790 | #endif |
| 791 | #elif defined(TARGET_SPARC) |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 792 | #ifdef TARGET_SPARC64 |
| 793 | cpu_model = "TI UltraSparc II"; |
| 794 | #else |
| 795 | cpu_model = "Fujitsu MB86904"; |
| 796 | #endif |
| 797 | #else |
| 798 | cpu_model = "any"; |
| 799 | #endif |
| 800 | } |
| 801 | cpu_exec_init_all(0); |
| 802 | /* NOTE: we need to init the CPU at this stage to get |
| 803 | qemu_host_page_size */ |
| 804 | env = cpu_init(cpu_model); |
| 805 | if (!env) { |
| 806 | fprintf(stderr, "Unable to find CPU definition\n"); |
| 807 | exit(1); |
| 808 | } |
| 809 | thread_env = env; |
| 810 | |
| 811 | if (getenv("QEMU_STRACE")) { |
| 812 | do_strace = 1; |
| 813 | } |
| 814 | |
Blue Swirl | fc0d96b | 2009-08-15 10:35:42 +0000 | [diff] [blame] | 815 | target_environ = envlist_to_environ(envlist, NULL); |
| 816 | envlist_free(envlist); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 817 | |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 818 | |
| 819 | if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) { |
| 820 | printf("Error loading %s\n", filename); |
| 821 | _exit(1); |
| 822 | } |
| 823 | |
| 824 | for (wrk = target_environ; *wrk; wrk++) { |
| 825 | free(*wrk); |
| 826 | } |
| 827 | |
| 828 | free(target_environ); |
| 829 | |
blueswir1 | 2e77eac | 2009-01-20 16:57:34 +0000 | [diff] [blame] | 830 | if (qemu_log_enabled()) { |
| 831 | log_page_dump(); |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 832 | |
blueswir1 | 2e77eac | 2009-01-20 16:57:34 +0000 | [diff] [blame] | 833 | qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); |
| 834 | qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); |
| 835 | qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", |
| 836 | info->start_code); |
| 837 | qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", |
| 838 | info->start_data); |
| 839 | qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); |
| 840 | qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", |
| 841 | info->start_stack); |
| 842 | qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); |
| 843 | qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); |
| 844 | } |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 845 | |
| 846 | target_set_brk(info->brk); |
| 847 | syscall_init(); |
| 848 | signal_init(); |
| 849 | |
| 850 | /* build Task State */ |
| 851 | memset(ts, 0, sizeof(TaskState)); |
| 852 | init_task_state(ts); |
| 853 | ts->info = info; |
| 854 | env->opaque = ts; |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 855 | |
blueswir1 | 31fc12d | 2009-04-11 11:09:31 +0000 | [diff] [blame] | 856 | #if defined(TARGET_I386) |
| 857 | cpu_x86_set_cpl(env, 3); |
| 858 | |
| 859 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
| 860 | env->hflags |= HF_PE_MASK; |
| 861 | if (env->cpuid_features & CPUID_SSE) { |
| 862 | env->cr[4] |= CR4_OSFXSR_MASK; |
| 863 | env->hflags |= HF_OSFXSR_MASK; |
| 864 | } |
| 865 | #ifndef TARGET_ABI32 |
| 866 | /* enable 64 bit mode if possible */ |
| 867 | if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) { |
| 868 | fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n"); |
| 869 | exit(1); |
| 870 | } |
| 871 | env->cr[4] |= CR4_PAE_MASK; |
| 872 | env->efer |= MSR_EFER_LMA | MSR_EFER_LME; |
| 873 | env->hflags |= HF_LMA_MASK; |
| 874 | #endif |
| 875 | |
| 876 | /* flags setup : we activate the IRQs by default as in user mode */ |
| 877 | env->eflags |= IF_MASK; |
| 878 | |
| 879 | /* linux register setup */ |
| 880 | #ifndef TARGET_ABI32 |
| 881 | env->regs[R_EAX] = regs->rax; |
| 882 | env->regs[R_EBX] = regs->rbx; |
| 883 | env->regs[R_ECX] = regs->rcx; |
| 884 | env->regs[R_EDX] = regs->rdx; |
| 885 | env->regs[R_ESI] = regs->rsi; |
| 886 | env->regs[R_EDI] = regs->rdi; |
| 887 | env->regs[R_EBP] = regs->rbp; |
| 888 | env->regs[R_ESP] = regs->rsp; |
| 889 | env->eip = regs->rip; |
| 890 | #else |
| 891 | env->regs[R_EAX] = regs->eax; |
| 892 | env->regs[R_EBX] = regs->ebx; |
| 893 | env->regs[R_ECX] = regs->ecx; |
| 894 | env->regs[R_EDX] = regs->edx; |
| 895 | env->regs[R_ESI] = regs->esi; |
| 896 | env->regs[R_EDI] = regs->edi; |
| 897 | env->regs[R_EBP] = regs->ebp; |
| 898 | env->regs[R_ESP] = regs->esp; |
| 899 | env->eip = regs->eip; |
| 900 | #endif |
| 901 | |
| 902 | /* linux interrupt setup */ |
| 903 | #ifndef TARGET_ABI32 |
| 904 | env->idt.limit = 511; |
| 905 | #else |
| 906 | env->idt.limit = 255; |
| 907 | #endif |
| 908 | env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), |
| 909 | PROT_READ|PROT_WRITE, |
| 910 | MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 911 | idt_table = g2h(env->idt.base); |
| 912 | set_idt(0, 0); |
| 913 | set_idt(1, 0); |
| 914 | set_idt(2, 0); |
| 915 | set_idt(3, 3); |
| 916 | set_idt(4, 3); |
| 917 | set_idt(5, 0); |
| 918 | set_idt(6, 0); |
| 919 | set_idt(7, 0); |
| 920 | set_idt(8, 0); |
| 921 | set_idt(9, 0); |
| 922 | set_idt(10, 0); |
| 923 | set_idt(11, 0); |
| 924 | set_idt(12, 0); |
| 925 | set_idt(13, 0); |
| 926 | set_idt(14, 0); |
| 927 | set_idt(15, 0); |
| 928 | set_idt(16, 0); |
| 929 | set_idt(17, 0); |
| 930 | set_idt(18, 0); |
| 931 | set_idt(19, 0); |
| 932 | set_idt(0x80, 3); |
| 933 | |
| 934 | /* linux segment setup */ |
| 935 | { |
| 936 | uint64_t *gdt_table; |
| 937 | env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, |
| 938 | PROT_READ|PROT_WRITE, |
| 939 | MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 940 | env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; |
| 941 | gdt_table = g2h(env->gdt.base); |
| 942 | #ifdef TARGET_ABI32 |
| 943 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 944 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 945 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 946 | #else |
| 947 | /* 64 bit code segment */ |
| 948 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 949 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 950 | DESC_L_MASK | |
| 951 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 952 | #endif |
| 953 | write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, |
| 954 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 955 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); |
| 956 | } |
| 957 | |
| 958 | cpu_x86_load_seg(env, R_CS, __USER_CS); |
| 959 | cpu_x86_load_seg(env, R_SS, __USER_DS); |
| 960 | #ifdef TARGET_ABI32 |
| 961 | cpu_x86_load_seg(env, R_DS, __USER_DS); |
| 962 | cpu_x86_load_seg(env, R_ES, __USER_DS); |
| 963 | cpu_x86_load_seg(env, R_FS, __USER_DS); |
| 964 | cpu_x86_load_seg(env, R_GS, __USER_DS); |
| 965 | /* This hack makes Wine work... */ |
| 966 | env->segs[R_FS].selector = 0; |
| 967 | #else |
| 968 | cpu_x86_load_seg(env, R_DS, 0); |
| 969 | cpu_x86_load_seg(env, R_ES, 0); |
| 970 | cpu_x86_load_seg(env, R_FS, 0); |
| 971 | cpu_x86_load_seg(env, R_GS, 0); |
| 972 | #endif |
| 973 | #elif defined(TARGET_SPARC) |
blueswir1 | 8477850 | 2008-10-26 20:33:16 +0000 | [diff] [blame] | 974 | { |
| 975 | int i; |
| 976 | env->pc = regs->pc; |
| 977 | env->npc = regs->npc; |
| 978 | env->y = regs->y; |
| 979 | for(i = 0; i < 8; i++) |
| 980 | env->gregs[i] = regs->u_regs[i]; |
| 981 | for(i = 0; i < 8; i++) |
| 982 | env->regwptr[i] = regs->u_regs[i + 8]; |
| 983 | } |
| 984 | #else |
| 985 | #error unsupported target CPU |
| 986 | #endif |
| 987 | |
| 988 | if (gdbstub_port) { |
| 989 | gdbserver_start (gdbstub_port); |
| 990 | gdb_handlesig(env, 0); |
| 991 | } |
| 992 | cpu_loop(env, bsd_type); |
| 993 | /* never exits */ |
| 994 | return 0; |
| 995 | } |