1 /* 2 * qemu user main 3 * 4 * Copyright (c) 2003 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 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <errno.h> 25 #include <unistd.h> 26 27 #include "qemu.h" 28 29 #define DEBUG_LOGFILE "/tmp/qemu.log" 30 31 #ifdef __APPLE__ 32 #include <crt_externs.h> 33 # define environ (*_NSGetEnviron()) 34 #endif 35 36 static const char *interp_prefix = CONFIG_QEMU_PREFIX; 37 const char *qemu_uname_release = CONFIG_UNAME_RELEASE; 38 39 #if defined(__i386__) && !defined(CONFIG_STATIC) 40 /* Force usage of an ELF interpreter even if it is an ELF shared 41 object ! */ 42 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2"; 43 #endif 44 45 /* for recent libc, we add these dummy symbols which are not declared 46 when generating a linked object (bug in ld ?) */ 47 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC) 48 long __preinit_array_start[0]; 49 long __preinit_array_end[0]; 50 long __init_array_start[0]; 51 long __init_array_end[0]; 52 long __fini_array_start[0]; 53 long __fini_array_end[0]; 54 #endif 55 56 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so 57 we allocate a bigger stack. Need a better solution, for example 58 by remapping the process stack directly at the right place */ 59 unsigned long x86_stack_size = 512 * 1024; 60 61 void gemu_log(const char *fmt, ...) 62 { 63 va_list ap; 64 65 va_start(ap, fmt); 66 vfprintf(stderr, fmt, ap); 67 va_end(ap); 68 } 69 70 void cpu_outb(CPUState *env, int addr, int val) 71 { 72 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val); 73 } 74 75 void cpu_outw(CPUState *env, int addr, int val) 76 { 77 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val); 78 } 79 80 void cpu_outl(CPUState *env, int addr, int val) 81 { 82 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); 83 } 84 85 int cpu_inb(CPUState *env, int addr) 86 { 87 fprintf(stderr, "inb: port=0x%04x\n", addr); 88 return 0; 89 } 90 91 int cpu_inw(CPUState *env, int addr) 92 { 93 fprintf(stderr, "inw: port=0x%04x\n", addr); 94 return 0; 95 } 96 97 int cpu_inl(CPUState *env, int addr) 98 { 99 fprintf(stderr, "inl: port=0x%04x\n", addr); 100 return 0; 101 } 102 103 int cpu_get_pic_interrupt(CPUState *env) 104 { 105 return -1; 106 } 107 108 /* timers for rdtsc */ 109 110 #if 0 111 112 static uint64_t emu_time; 113 114 int64_t cpu_get_real_ticks(void) 115 { 116 return emu_time++; 117 } 118 119 #endif 120 121 #ifdef TARGET_I386 122 /***********************************************************/ 123 /* CPUX86 core interface */ 124 125 void cpu_smm_update(CPUState *env) 126 { 127 } 128 129 uint64_t cpu_get_tsc(CPUX86State *env) 130 { 131 return cpu_get_real_ticks(); 132 } 133 134 static void write_dt(void *ptr, unsigned long addr, unsigned long limit, 135 int flags) 136 { 137 unsigned int e1, e2; 138 uint32_t *p; 139 e1 = (addr << 16) | (limit & 0xffff); 140 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); 141 e2 |= flags; 142 p = ptr; 143 p[0] = tswapl(e1); 144 p[1] = tswapl(e2); 145 } 146 147 static void set_gate(void *ptr, unsigned int type, unsigned int dpl, 148 unsigned long addr, unsigned int sel) 149 { 150 unsigned int e1, e2; 151 uint32_t *p; 152 e1 = (addr & 0xffff) | (sel << 16); 153 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); 154 p = ptr; 155 p[0] = tswapl(e1); 156 p[1] = tswapl(e2); 157 } 158 159 uint64_t gdt_table[6]; 160 uint64_t idt_table[256]; 161 162 /* only dpl matters as we do only user space emulation */ 163 static void set_idt(int n, unsigned int dpl) 164 { 165 set_gate(idt_table + n, 0, dpl, 0, 0); 166 } 167 168 void cpu_loop(CPUX86State *env) 169 { 170 int trapnr; 171 target_ulong pc; 172 target_siginfo_t info; 173 174 for(;;) { 175 trapnr = cpu_x86_exec(env); 176 switch(trapnr) { 177 case 0x80: 178 /* linux syscall */ 179 env->regs[R_EAX] = do_syscall(env, 180 env->regs[R_EAX], 181 env->regs[R_EBX], 182 env->regs[R_ECX], 183 env->regs[R_EDX], 184 env->regs[R_ESI], 185 env->regs[R_EDI], 186 env->regs[R_EBP]); 187 break; 188 case EXCP0B_NOSEG: 189 case EXCP0C_STACK: 190 info.si_signo = SIGBUS; 191 info.si_errno = 0; 192 info.si_code = TARGET_SI_KERNEL; 193 info._sifields._sigfault._addr = 0; 194 queue_signal(info.si_signo, &info); 195 break; 196 case EXCP0D_GPF: 197 if (env->eflags & VM_MASK) { 198 handle_vm86_fault(env); 199 } else { 200 info.si_signo = SIGSEGV; 201 info.si_errno = 0; 202 info.si_code = TARGET_SI_KERNEL; 203 info._sifields._sigfault._addr = 0; 204 queue_signal(info.si_signo, &info); 205 } 206 break; 207 case EXCP0E_PAGE: 208 info.si_signo = SIGSEGV; 209 info.si_errno = 0; 210 if (!(env->error_code & 1)) 211 info.si_code = TARGET_SEGV_MAPERR; 212 else 213 info.si_code = TARGET_SEGV_ACCERR; 214 info._sifields._sigfault._addr = env->cr[2]; 215 queue_signal(info.si_signo, &info); 216 break; 217 case EXCP00_DIVZ: 218 if (env->eflags & VM_MASK) { 219 handle_vm86_trap(env, trapnr); 220 } else { 221 /* division by zero */ 222 info.si_signo = SIGFPE; 223 info.si_errno = 0; 224 info.si_code = TARGET_FPE_INTDIV; 225 info._sifields._sigfault._addr = env->eip; 226 queue_signal(info.si_signo, &info); 227 } 228 break; 229 case EXCP01_SSTP: 230 case EXCP03_INT3: 231 if (env->eflags & VM_MASK) { 232 handle_vm86_trap(env, trapnr); 233 } else { 234 info.si_signo = SIGTRAP; 235 info.si_errno = 0; 236 if (trapnr == EXCP01_SSTP) { 237 info.si_code = TARGET_TRAP_BRKPT; 238 info._sifields._sigfault._addr = env->eip; 239 } else { 240 info.si_code = TARGET_SI_KERNEL; 241 info._sifields._sigfault._addr = 0; 242 } 243 queue_signal(info.si_signo, &info); 244 } 245 break; 246 case EXCP04_INTO: 247 case EXCP05_BOUND: 248 if (env->eflags & VM_MASK) { 249 handle_vm86_trap(env, trapnr); 250 } else { 251 info.si_signo = SIGSEGV; 252 info.si_errno = 0; 253 info.si_code = TARGET_SI_KERNEL; 254 info._sifields._sigfault._addr = 0; 255 queue_signal(info.si_signo, &info); 256 } 257 break; 258 case EXCP06_ILLOP: 259 info.si_signo = SIGILL; 260 info.si_errno = 0; 261 info.si_code = TARGET_ILL_ILLOPN; 262 info._sifields._sigfault._addr = env->eip; 263 queue_signal(info.si_signo, &info); 264 break; 265 case EXCP_INTERRUPT: 266 /* just indicate that signals should be handled asap */ 267 break; 268 case EXCP_DEBUG: 269 { 270 int sig; 271 272 sig = gdb_handlesig (env, TARGET_SIGTRAP); 273 if (sig) 274 { 275 info.si_signo = sig; 276 info.si_errno = 0; 277 info.si_code = TARGET_TRAP_BRKPT; 278 queue_signal(info.si_signo, &info); 279 } 280 } 281 break; 282 default: 283 pc = env->segs[R_CS].base + env->eip; 284 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", 285 (long)pc, trapnr); 286 abort(); 287 } 288 process_pending_signals(env); 289 } 290 } 291 #endif 292 293 #ifdef TARGET_ARM 294 295 /* XXX: find a better solution */ 296 extern void tb_invalidate_page_range(target_ulong start, target_ulong end); 297 298 static void arm_cache_flush(target_ulong start, target_ulong last) 299 { 300 target_ulong addr, last1; 301 302 if (last < start) 303 return; 304 addr = start; 305 for(;;) { 306 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1; 307 if (last1 > last) 308 last1 = last; 309 tb_invalidate_page_range(addr, last1 + 1); 310 if (last1 == last) 311 break; 312 addr = last1 + 1; 313 } 314 } 315 316 void cpu_loop(CPUARMState *env) 317 { 318 int trapnr; 319 unsigned int n, insn; 320 target_siginfo_t info; 321 uint32_t addr; 322 323 for(;;) { 324 trapnr = cpu_arm_exec(env); 325 switch(trapnr) { 326 case EXCP_UDEF: 327 { 328 TaskState *ts = env->opaque; 329 uint32_t opcode; 330 331 /* we handle the FPU emulation here, as Linux */ 332 /* we get the opcode */ 333 opcode = tget32(env->regs[15]); 334 335 if (EmulateAll(opcode, &ts->fpa, env) == 0) { 336 info.si_signo = SIGILL; 337 info.si_errno = 0; 338 info.si_code = TARGET_ILL_ILLOPN; 339 info._sifields._sigfault._addr = env->regs[15]; 340 queue_signal(info.si_signo, &info); 341 } else { 342 /* increment PC */ 343 env->regs[15] += 4; 344 } 345 } 346 break; 347 case EXCP_SWI: 348 case EXCP_BKPT: 349 { 350 env->eabi = 1; 351 /* system call */ 352 if (trapnr == EXCP_BKPT) { 353 if (env->thumb) { 354 insn = tget16(env->regs[15]); 355 n = insn & 0xff; 356 env->regs[15] += 2; 357 } else { 358 insn = tget32(env->regs[15]); 359 n = (insn & 0xf) | ((insn >> 4) & 0xff0); 360 env->regs[15] += 4; 361 } 362 } else { 363 if (env->thumb) { 364 insn = tget16(env->regs[15] - 2); 365 n = insn & 0xff; 366 } else { 367 insn = tget32(env->regs[15] - 4); 368 n = insn & 0xffffff; 369 } 370 } 371 372 if (n == ARM_NR_cacheflush) { 373 arm_cache_flush(env->regs[0], env->regs[1]); 374 } else if (n == ARM_NR_semihosting 375 || n == ARM_NR_thumb_semihosting) { 376 env->regs[0] = do_arm_semihosting (env); 377 } else if (n == 0 || n >= ARM_SYSCALL_BASE 378 || (env->thumb && n == ARM_THUMB_SYSCALL)) { 379 /* linux syscall */ 380 if (env->thumb || n == 0) { 381 n = env->regs[7]; 382 } else { 383 n -= ARM_SYSCALL_BASE; 384 env->eabi = 0; 385 } 386 env->regs[0] = do_syscall(env, 387 n, 388 env->regs[0], 389 env->regs[1], 390 env->regs[2], 391 env->regs[3], 392 env->regs[4], 393 env->regs[5]); 394 } else { 395 goto error; 396 } 397 } 398 break; 399 case EXCP_INTERRUPT: 400 /* just indicate that signals should be handled asap */ 401 break; 402 case EXCP_PREFETCH_ABORT: 403 addr = env->cp15.c6_data; 404 goto do_segv; 405 case EXCP_DATA_ABORT: 406 addr = env->cp15.c6_insn; 407 goto do_segv; 408 do_segv: 409 { 410 info.si_signo = SIGSEGV; 411 info.si_errno = 0; 412 /* XXX: check env->error_code */ 413 info.si_code = TARGET_SEGV_MAPERR; 414 info._sifields._sigfault._addr = addr; 415 queue_signal(info.si_signo, &info); 416 } 417 break; 418 case EXCP_DEBUG: 419 { 420 int sig; 421 422 sig = gdb_handlesig (env, TARGET_SIGTRAP); 423 if (sig) 424 { 425 info.si_signo = sig; 426 info.si_errno = 0; 427 info.si_code = TARGET_TRAP_BRKPT; 428 queue_signal(info.si_signo, &info); 429 } 430 } 431 break; 432 default: 433 error: 434 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 435 trapnr); 436 cpu_dump_state(env, stderr, fprintf, 0); 437 abort(); 438 } 439 process_pending_signals(env); 440 } 441 } 442 443 #endif 444 445 #ifdef TARGET_SPARC 446 447 //#define DEBUG_WIN 448 449 /* WARNING: dealing with register windows _is_ complicated. More info 450 can be found at http://www.sics.se/~psm/sparcstack.html */ 451 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) 452 { 453 index = (index + cwp * 16) & (16 * NWINDOWS - 1); 454 /* wrap handling : if cwp is on the last window, then we use the 455 registers 'after' the end */ 456 if (index < 8 && env->cwp == (NWINDOWS - 1)) 457 index += (16 * NWINDOWS); 458 return index; 459 } 460 461 /* save the register window 'cwp1' */ 462 static inline void save_window_offset(CPUSPARCState *env, int cwp1) 463 { 464 unsigned int i; 465 target_ulong sp_ptr; 466 467 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; 468 #if defined(DEBUG_WIN) 469 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n", 470 (int)sp_ptr, cwp1); 471 #endif 472 for(i = 0; i < 16; i++) { 473 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]); 474 sp_ptr += sizeof(target_ulong); 475 } 476 } 477 478 static void save_window(CPUSPARCState *env) 479 { 480 #ifndef TARGET_SPARC64 481 unsigned int new_wim; 482 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) & 483 ((1LL << NWINDOWS) - 1); 484 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1)); 485 env->wim = new_wim; 486 #else 487 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1)); 488 env->cansave++; 489 env->canrestore--; 490 #endif 491 } 492 493 static void restore_window(CPUSPARCState *env) 494 { 495 unsigned int new_wim, i, cwp1; 496 target_ulong sp_ptr; 497 498 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) & 499 ((1LL << NWINDOWS) - 1); 500 501 /* restore the invalid window */ 502 cwp1 = (env->cwp + 1) & (NWINDOWS - 1); 503 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)]; 504 #if defined(DEBUG_WIN) 505 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n", 506 (int)sp_ptr, cwp1); 507 #endif 508 for(i = 0; i < 16; i++) { 509 env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr); 510 sp_ptr += sizeof(target_ulong); 511 } 512 env->wim = new_wim; 513 #ifdef TARGET_SPARC64 514 env->canrestore++; 515 if (env->cleanwin < NWINDOWS - 1) 516 env->cleanwin++; 517 env->cansave--; 518 #endif 519 } 520 521 static void flush_windows(CPUSPARCState *env) 522 { 523 int offset, cwp1; 524 525 offset = 1; 526 for(;;) { 527 /* if restore would invoke restore_window(), then we can stop */ 528 cwp1 = (env->cwp + offset) & (NWINDOWS - 1); 529 if (env->wim & (1 << cwp1)) 530 break; 531 save_window_offset(env, cwp1); 532 offset++; 533 } 534 /* set wim so that restore will reload the registers */ 535 cwp1 = (env->cwp + 1) & (NWINDOWS - 1); 536 env->wim = 1 << cwp1; 537 #if defined(DEBUG_WIN) 538 printf("flush_windows: nb=%d\n", offset - 1); 539 #endif 540 } 541 542 void cpu_loop (CPUSPARCState *env) 543 { 544 int trapnr, ret; 545 target_siginfo_t info; 546 547 while (1) { 548 trapnr = cpu_sparc_exec (env); 549 550 switch (trapnr) { 551 #ifndef TARGET_SPARC64 552 case 0x88: 553 case 0x90: 554 #else 555 case 0x16d: 556 #endif 557 ret = do_syscall (env, env->gregs[1], 558 env->regwptr[0], env->regwptr[1], 559 env->regwptr[2], env->regwptr[3], 560 env->regwptr[4], env->regwptr[5]); 561 if ((unsigned int)ret >= (unsigned int)(-515)) { 562 #ifdef TARGET_SPARC64 563 env->xcc |= PSR_CARRY; 564 #else 565 env->psr |= PSR_CARRY; 566 #endif 567 ret = -ret; 568 } else { 569 #ifdef TARGET_SPARC64 570 env->xcc &= ~PSR_CARRY; 571 #else 572 env->psr &= ~PSR_CARRY; 573 #endif 574 } 575 env->regwptr[0] = ret; 576 /* next instruction */ 577 env->pc = env->npc; 578 env->npc = env->npc + 4; 579 break; 580 case 0x83: /* flush windows */ 581 flush_windows(env); 582 /* next instruction */ 583 env->pc = env->npc; 584 env->npc = env->npc + 4; 585 break; 586 #ifndef TARGET_SPARC64 587 case TT_WIN_OVF: /* window overflow */ 588 save_window(env); 589 break; 590 case TT_WIN_UNF: /* window underflow */ 591 restore_window(env); 592 break; 593 case TT_TFAULT: 594 case TT_DFAULT: 595 { 596 info.si_signo = SIGSEGV; 597 info.si_errno = 0; 598 /* XXX: check env->error_code */ 599 info.si_code = TARGET_SEGV_MAPERR; 600 info._sifields._sigfault._addr = env->mmuregs[4]; 601 queue_signal(info.si_signo, &info); 602 } 603 break; 604 #else 605 case TT_SPILL: /* window overflow */ 606 save_window(env); 607 break; 608 case TT_FILL: /* window underflow */ 609 restore_window(env); 610 break; 611 // XXX 612 #endif 613 case EXCP_INTERRUPT: 614 /* just indicate that signals should be handled asap */ 615 break; 616 case EXCP_DEBUG: 617 { 618 int sig; 619 620 sig = gdb_handlesig (env, TARGET_SIGTRAP); 621 if (sig) 622 { 623 info.si_signo = sig; 624 info.si_errno = 0; 625 info.si_code = TARGET_TRAP_BRKPT; 626 queue_signal(info.si_signo, &info); 627 } 628 } 629 break; 630 default: 631 printf ("Unhandled trap: 0x%x\n", trapnr); 632 cpu_dump_state(env, stderr, fprintf, 0); 633 exit (1); 634 } 635 process_pending_signals (env); 636 } 637 } 638 639 #endif 640 641 #ifdef TARGET_PPC 642 643 static inline uint64_t cpu_ppc_get_tb (CPUState *env) 644 { 645 /* TO FIX */ 646 return 0; 647 } 648 649 uint32_t cpu_ppc_load_tbl (CPUState *env) 650 { 651 return cpu_ppc_get_tb(env) & 0xFFFFFFFF; 652 } 653 654 uint32_t cpu_ppc_load_tbu (CPUState *env) 655 { 656 return cpu_ppc_get_tb(env) >> 32; 657 } 658 659 static void cpu_ppc_store_tb (CPUState *env, uint64_t value) 660 { 661 /* TO FIX */ 662 } 663 664 void cpu_ppc_store_tbu (CPUState *env, uint32_t value) 665 { 666 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env)); 667 } 668 669 void cpu_ppc_store_tbl (CPUState *env, uint32_t value) 670 { 671 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value); 672 } 673 674 void cpu_ppc601_store_rtcu (CPUState *env, uint32_t value) 675 __attribute__ (( alias ("cpu_ppc_store_tbu") )); 676 677 uint32_t cpu_ppc601_load_rtcu (CPUState *env) 678 __attribute__ (( alias ("cpu_ppc_load_tbu") )); 679 680 void cpu_ppc601_store_rtcl (CPUState *env, uint32_t value) 681 { 682 cpu_ppc_store_tbl(env, value & 0x3FFFFF80); 683 } 684 685 uint32_t cpu_ppc601_load_rtcl (CPUState *env) 686 { 687 return cpu_ppc_load_tbl(env) & 0x3FFFFF80; 688 } 689 690 void cpu_loop(CPUPPCState *env) 691 { 692 target_siginfo_t info; 693 int trapnr; 694 uint32_t ret; 695 696 for(;;) { 697 trapnr = cpu_ppc_exec(env); 698 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH && 699 trapnr != EXCP_TRACE) { 700 if (loglevel > 0) { 701 cpu_dump_state(env, logfile, fprintf, 0); 702 } 703 } 704 switch(trapnr) { 705 case EXCP_NONE: 706 break; 707 case EXCP_SYSCALL_USER: 708 /* system call */ 709 /* WARNING: 710 * PPC ABI uses overflow flag in cr0 to signal an error 711 * in syscalls. 712 */ 713 #if 0 714 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0], 715 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); 716 #endif 717 env->crf[0] &= ~0x1; 718 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], 719 env->gpr[5], env->gpr[6], env->gpr[7], 720 env->gpr[8]); 721 if (ret > (uint32_t)(-515)) { 722 env->crf[0] |= 0x1; 723 ret = -ret; 724 } 725 env->gpr[3] = ret; 726 #if 0 727 printf("syscall returned 0x%08x (%d)\n", ret, ret); 728 #endif 729 break; 730 case EXCP_RESET: 731 /* Should not happen ! */ 732 fprintf(stderr, "RESET asked... Stop emulation\n"); 733 if (loglevel) 734 fprintf(logfile, "RESET asked... Stop emulation\n"); 735 abort(); 736 case EXCP_MACHINE_CHECK: 737 fprintf(stderr, "Machine check exeption... Stop emulation\n"); 738 if (loglevel) 739 fprintf(logfile, "RESET asked... Stop emulation\n"); 740 info.si_signo = TARGET_SIGBUS; 741 info.si_errno = 0; 742 info.si_code = TARGET_BUS_OBJERR; 743 info._sifields._sigfault._addr = env->nip - 4; 744 queue_signal(info.si_signo, &info); 745 case EXCP_DSI: 746 fprintf(stderr, "Invalid data memory access: 0x%08x\n", 747 env->spr[SPR_DAR]); 748 if (loglevel) { 749 fprintf(logfile, "Invalid data memory access: 0x%08x\n", 750 env->spr[SPR_DAR]); 751 } 752 switch (env->error_code & 0xFF000000) { 753 case 0x40000000: 754 info.si_signo = TARGET_SIGSEGV; 755 info.si_errno = 0; 756 info.si_code = TARGET_SEGV_MAPERR; 757 break; 758 case 0x04000000: 759 info.si_signo = TARGET_SIGILL; 760 info.si_errno = 0; 761 info.si_code = TARGET_ILL_ILLADR; 762 break; 763 case 0x08000000: 764 info.si_signo = TARGET_SIGSEGV; 765 info.si_errno = 0; 766 info.si_code = TARGET_SEGV_ACCERR; 767 break; 768 default: 769 /* Let's send a regular segfault... */ 770 fprintf(stderr, "Invalid segfault errno (%02x)\n", 771 env->error_code); 772 if (loglevel) { 773 fprintf(logfile, "Invalid segfault errno (%02x)\n", 774 env->error_code); 775 } 776 info.si_signo = TARGET_SIGSEGV; 777 info.si_errno = 0; 778 info.si_code = TARGET_SEGV_MAPERR; 779 break; 780 } 781 info._sifields._sigfault._addr = env->nip; 782 queue_signal(info.si_signo, &info); 783 break; 784 case EXCP_ISI: 785 fprintf(stderr, "Invalid instruction fetch\n"); 786 if (loglevel) 787 fprintf(logfile, "Invalid instruction fetch\n"); 788 switch (env->error_code & 0xFF000000) { 789 case 0x40000000: 790 info.si_signo = TARGET_SIGSEGV; 791 info.si_errno = 0; 792 info.si_code = TARGET_SEGV_MAPERR; 793 break; 794 case 0x10000000: 795 case 0x08000000: 796 info.si_signo = TARGET_SIGSEGV; 797 info.si_errno = 0; 798 info.si_code = TARGET_SEGV_ACCERR; 799 break; 800 default: 801 /* Let's send a regular segfault... */ 802 fprintf(stderr, "Invalid segfault errno (%02x)\n", 803 env->error_code); 804 if (loglevel) { 805 fprintf(logfile, "Invalid segfault errno (%02x)\n", 806 env->error_code); 807 } 808 info.si_signo = TARGET_SIGSEGV; 809 info.si_errno = 0; 810 info.si_code = TARGET_SEGV_MAPERR; 811 break; 812 } 813 info._sifields._sigfault._addr = env->nip - 4; 814 queue_signal(info.si_signo, &info); 815 break; 816 case EXCP_EXTERNAL: 817 /* Should not happen ! */ 818 fprintf(stderr, "External interruption... Stop emulation\n"); 819 if (loglevel) 820 fprintf(logfile, "External interruption... Stop emulation\n"); 821 abort(); 822 case EXCP_ALIGN: 823 fprintf(stderr, "Invalid unaligned memory access\n"); 824 if (loglevel) 825 fprintf(logfile, "Invalid unaligned memory access\n"); 826 info.si_signo = TARGET_SIGBUS; 827 info.si_errno = 0; 828 info.si_code = TARGET_BUS_ADRALN; 829 info._sifields._sigfault._addr = env->nip - 4; 830 queue_signal(info.si_signo, &info); 831 break; 832 case EXCP_PROGRAM: 833 switch (env->error_code & ~0xF) { 834 case EXCP_FP: 835 fprintf(stderr, "Program exception\n"); 836 if (loglevel) 837 fprintf(logfile, "Program exception\n"); 838 /* Set FX */ 839 env->fpscr[7] |= 0x8; 840 /* Finally, update FEX */ 841 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) & 842 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3))) 843 env->fpscr[7] |= 0x4; 844 info.si_signo = TARGET_SIGFPE; 845 info.si_errno = 0; 846 switch (env->error_code & 0xF) { 847 case EXCP_FP_OX: 848 info.si_code = TARGET_FPE_FLTOVF; 849 break; 850 case EXCP_FP_UX: 851 info.si_code = TARGET_FPE_FLTUND; 852 break; 853 case EXCP_FP_ZX: 854 case EXCP_FP_VXZDZ: 855 info.si_code = TARGET_FPE_FLTDIV; 856 break; 857 case EXCP_FP_XX: 858 info.si_code = TARGET_FPE_FLTRES; 859 break; 860 case EXCP_FP_VXSOFT: 861 info.si_code = TARGET_FPE_FLTINV; 862 break; 863 case EXCP_FP_VXNAN: 864 case EXCP_FP_VXISI: 865 case EXCP_FP_VXIDI: 866 case EXCP_FP_VXIMZ: 867 case EXCP_FP_VXVC: 868 case EXCP_FP_VXSQRT: 869 case EXCP_FP_VXCVI: 870 info.si_code = TARGET_FPE_FLTSUB; 871 break; 872 default: 873 fprintf(stderr, "Unknown floating point exception " 874 "(%02x)\n", env->error_code); 875 if (loglevel) { 876 fprintf(logfile, "Unknown floating point exception " 877 "(%02x)\n", env->error_code & 0xF); 878 } 879 } 880 break; 881 case EXCP_INVAL: 882 fprintf(stderr, "Invalid instruction\n"); 883 if (loglevel) 884 fprintf(logfile, "Invalid instruction\n"); 885 info.si_signo = TARGET_SIGILL; 886 info.si_errno = 0; 887 switch (env->error_code & 0xF) { 888 case EXCP_INVAL_INVAL: 889 info.si_code = TARGET_ILL_ILLOPC; 890 break; 891 case EXCP_INVAL_LSWX: 892 info.si_code = TARGET_ILL_ILLOPN; 893 break; 894 case EXCP_INVAL_SPR: 895 info.si_code = TARGET_ILL_PRVREG; 896 break; 897 case EXCP_INVAL_FP: 898 info.si_code = TARGET_ILL_COPROC; 899 break; 900 default: 901 fprintf(stderr, "Unknown invalid operation (%02x)\n", 902 env->error_code & 0xF); 903 if (loglevel) { 904 fprintf(logfile, "Unknown invalid operation (%02x)\n", 905 env->error_code & 0xF); 906 } 907 info.si_code = TARGET_ILL_ILLADR; 908 break; 909 } 910 break; 911 case EXCP_PRIV: 912 fprintf(stderr, "Privilege violation\n"); 913 if (loglevel) 914 fprintf(logfile, "Privilege violation\n"); 915 info.si_signo = TARGET_SIGILL; 916 info.si_errno = 0; 917 switch (env->error_code & 0xF) { 918 case EXCP_PRIV_OPC: 919 info.si_code = TARGET_ILL_PRVOPC; 920 break; 921 case EXCP_PRIV_REG: 922 info.si_code = TARGET_ILL_PRVREG; 923 break; 924 default: 925 fprintf(stderr, "Unknown privilege violation (%02x)\n", 926 env->error_code & 0xF); 927 info.si_code = TARGET_ILL_PRVOPC; 928 break; 929 } 930 break; 931 case EXCP_TRAP: 932 fprintf(stderr, "Tried to call a TRAP\n"); 933 if (loglevel) 934 fprintf(logfile, "Tried to call a TRAP\n"); 935 abort(); 936 default: 937 /* Should not happen ! */ 938 fprintf(stderr, "Unknown program exception (%02x)\n", 939 env->error_code); 940 if (loglevel) { 941 fprintf(logfile, "Unknwon program exception (%02x)\n", 942 env->error_code); 943 } 944 abort(); 945 } 946 info._sifields._sigfault._addr = env->nip - 4; 947 queue_signal(info.si_signo, &info); 948 break; 949 case EXCP_NO_FP: 950 fprintf(stderr, "No floating point allowed\n"); 951 if (loglevel) 952 fprintf(logfile, "No floating point allowed\n"); 953 info.si_signo = TARGET_SIGILL; 954 info.si_errno = 0; 955 info.si_code = TARGET_ILL_COPROC; 956 info._sifields._sigfault._addr = env->nip - 4; 957 queue_signal(info.si_signo, &info); 958 break; 959 case EXCP_DECR: 960 /* Should not happen ! */ 961 fprintf(stderr, "Decrementer exception\n"); 962 if (loglevel) 963 fprintf(logfile, "Decrementer exception\n"); 964 abort(); 965 case EXCP_TRACE: 966 /* Do nothing: we use this to trace execution */ 967 break; 968 case EXCP_FP_ASSIST: 969 /* Should not happen ! */ 970 fprintf(stderr, "Floating point assist exception\n"); 971 if (loglevel) 972 fprintf(logfile, "Floating point assist exception\n"); 973 abort(); 974 case EXCP_MTMSR: 975 /* We reloaded the msr, just go on */ 976 if (msr_pr == 0) { 977 fprintf(stderr, "Tried to go into supervisor mode !\n"); 978 if (loglevel) 979 fprintf(logfile, "Tried to go into supervisor mode !\n"); 980 abort(); 981 } 982 break; 983 case EXCP_BRANCH: 984 /* We stopped because of a jump... */ 985 break; 986 case EXCP_INTERRUPT: 987 /* Don't know why this should ever happen... */ 988 break; 989 case EXCP_DEBUG: 990 { 991 int sig; 992 993 sig = gdb_handlesig (env, TARGET_SIGTRAP); 994 if (sig) 995 { 996 info.si_signo = sig; 997 info.si_errno = 0; 998 info.si_code = TARGET_TRAP_BRKPT; 999 queue_signal(info.si_signo, &info); 1000 } 1001 } 1002 break; 1003 default: 1004 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 1005 trapnr); 1006 if (loglevel) { 1007 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - " 1008 "0x%02x - aborting\n", trapnr, env->error_code); 1009 } 1010 abort(); 1011 } 1012 process_pending_signals(env); 1013 } 1014 } 1015 #endif 1016 1017 #ifdef TARGET_MIPS 1018 1019 #define MIPS_SYS(name, args) args, 1020 1021 static const uint8_t mips_syscall_args[] = { 1022 MIPS_SYS(sys_syscall , 0) /* 4000 */ 1023 MIPS_SYS(sys_exit , 1) 1024 MIPS_SYS(sys_fork , 0) 1025 MIPS_SYS(sys_read , 3) 1026 MIPS_SYS(sys_write , 3) 1027 MIPS_SYS(sys_open , 3) /* 4005 */ 1028 MIPS_SYS(sys_close , 1) 1029 MIPS_SYS(sys_waitpid , 3) 1030 MIPS_SYS(sys_creat , 2) 1031 MIPS_SYS(sys_link , 2) 1032 MIPS_SYS(sys_unlink , 1) /* 4010 */ 1033 MIPS_SYS(sys_execve , 0) 1034 MIPS_SYS(sys_chdir , 1) 1035 MIPS_SYS(sys_time , 1) 1036 MIPS_SYS(sys_mknod , 3) 1037 MIPS_SYS(sys_chmod , 2) /* 4015 */ 1038 MIPS_SYS(sys_lchown , 3) 1039 MIPS_SYS(sys_ni_syscall , 0) 1040 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */ 1041 MIPS_SYS(sys_lseek , 3) 1042 MIPS_SYS(sys_getpid , 0) /* 4020 */ 1043 MIPS_SYS(sys_mount , 5) 1044 MIPS_SYS(sys_oldumount , 1) 1045 MIPS_SYS(sys_setuid , 1) 1046 MIPS_SYS(sys_getuid , 0) 1047 MIPS_SYS(sys_stime , 1) /* 4025 */ 1048 MIPS_SYS(sys_ptrace , 4) 1049 MIPS_SYS(sys_alarm , 1) 1050 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */ 1051 MIPS_SYS(sys_pause , 0) 1052 MIPS_SYS(sys_utime , 2) /* 4030 */ 1053 MIPS_SYS(sys_ni_syscall , 0) 1054 MIPS_SYS(sys_ni_syscall , 0) 1055 MIPS_SYS(sys_access , 2) 1056 MIPS_SYS(sys_nice , 1) 1057 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */ 1058 MIPS_SYS(sys_sync , 0) 1059 MIPS_SYS(sys_kill , 2) 1060 MIPS_SYS(sys_rename , 2) 1061 MIPS_SYS(sys_mkdir , 2) 1062 MIPS_SYS(sys_rmdir , 1) /* 4040 */ 1063 MIPS_SYS(sys_dup , 1) 1064 MIPS_SYS(sys_pipe , 0) 1065 MIPS_SYS(sys_times , 1) 1066 MIPS_SYS(sys_ni_syscall , 0) 1067 MIPS_SYS(sys_brk , 1) /* 4045 */ 1068 MIPS_SYS(sys_setgid , 1) 1069 MIPS_SYS(sys_getgid , 0) 1070 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */ 1071 MIPS_SYS(sys_geteuid , 0) 1072 MIPS_SYS(sys_getegid , 0) /* 4050 */ 1073 MIPS_SYS(sys_acct , 0) 1074 MIPS_SYS(sys_umount , 2) 1075 MIPS_SYS(sys_ni_syscall , 0) 1076 MIPS_SYS(sys_ioctl , 3) 1077 MIPS_SYS(sys_fcntl , 3) /* 4055 */ 1078 MIPS_SYS(sys_ni_syscall , 2) 1079 MIPS_SYS(sys_setpgid , 2) 1080 MIPS_SYS(sys_ni_syscall , 0) 1081 MIPS_SYS(sys_olduname , 1) 1082 MIPS_SYS(sys_umask , 1) /* 4060 */ 1083 MIPS_SYS(sys_chroot , 1) 1084 MIPS_SYS(sys_ustat , 2) 1085 MIPS_SYS(sys_dup2 , 2) 1086 MIPS_SYS(sys_getppid , 0) 1087 MIPS_SYS(sys_getpgrp , 0) /* 4065 */ 1088 MIPS_SYS(sys_setsid , 0) 1089 MIPS_SYS(sys_sigaction , 3) 1090 MIPS_SYS(sys_sgetmask , 0) 1091 MIPS_SYS(sys_ssetmask , 1) 1092 MIPS_SYS(sys_setreuid , 2) /* 4070 */ 1093 MIPS_SYS(sys_setregid , 2) 1094 MIPS_SYS(sys_sigsuspend , 0) 1095 MIPS_SYS(sys_sigpending , 1) 1096 MIPS_SYS(sys_sethostname , 2) 1097 MIPS_SYS(sys_setrlimit , 2) /* 4075 */ 1098 MIPS_SYS(sys_getrlimit , 2) 1099 MIPS_SYS(sys_getrusage , 2) 1100 MIPS_SYS(sys_gettimeofday, 2) 1101 MIPS_SYS(sys_settimeofday, 2) 1102 MIPS_SYS(sys_getgroups , 2) /* 4080 */ 1103 MIPS_SYS(sys_setgroups , 2) 1104 MIPS_SYS(sys_ni_syscall , 0) /* old_select */ 1105 MIPS_SYS(sys_symlink , 2) 1106 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */ 1107 MIPS_SYS(sys_readlink , 3) /* 4085 */ 1108 MIPS_SYS(sys_uselib , 1) 1109 MIPS_SYS(sys_swapon , 2) 1110 MIPS_SYS(sys_reboot , 3) 1111 MIPS_SYS(old_readdir , 3) 1112 MIPS_SYS(old_mmap , 6) /* 4090 */ 1113 MIPS_SYS(sys_munmap , 2) 1114 MIPS_SYS(sys_truncate , 2) 1115 MIPS_SYS(sys_ftruncate , 2) 1116 MIPS_SYS(sys_fchmod , 2) 1117 MIPS_SYS(sys_fchown , 3) /* 4095 */ 1118 MIPS_SYS(sys_getpriority , 2) 1119 MIPS_SYS(sys_setpriority , 3) 1120 MIPS_SYS(sys_ni_syscall , 0) 1121 MIPS_SYS(sys_statfs , 2) 1122 MIPS_SYS(sys_fstatfs , 2) /* 4100 */ 1123 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */ 1124 MIPS_SYS(sys_socketcall , 2) 1125 MIPS_SYS(sys_syslog , 3) 1126 MIPS_SYS(sys_setitimer , 3) 1127 MIPS_SYS(sys_getitimer , 2) /* 4105 */ 1128 MIPS_SYS(sys_newstat , 2) 1129 MIPS_SYS(sys_newlstat , 2) 1130 MIPS_SYS(sys_newfstat , 2) 1131 MIPS_SYS(sys_uname , 1) 1132 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */ 1133 MIPS_SYS(sys_vhangup , 0) 1134 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */ 1135 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */ 1136 MIPS_SYS(sys_wait4 , 4) 1137 MIPS_SYS(sys_swapoff , 1) /* 4115 */ 1138 MIPS_SYS(sys_sysinfo , 1) 1139 MIPS_SYS(sys_ipc , 6) 1140 MIPS_SYS(sys_fsync , 1) 1141 MIPS_SYS(sys_sigreturn , 0) 1142 MIPS_SYS(sys_clone , 0) /* 4120 */ 1143 MIPS_SYS(sys_setdomainname, 2) 1144 MIPS_SYS(sys_newuname , 1) 1145 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */ 1146 MIPS_SYS(sys_adjtimex , 1) 1147 MIPS_SYS(sys_mprotect , 3) /* 4125 */ 1148 MIPS_SYS(sys_sigprocmask , 3) 1149 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */ 1150 MIPS_SYS(sys_init_module , 5) 1151 MIPS_SYS(sys_delete_module, 1) 1152 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */ 1153 MIPS_SYS(sys_quotactl , 0) 1154 MIPS_SYS(sys_getpgid , 1) 1155 MIPS_SYS(sys_fchdir , 1) 1156 MIPS_SYS(sys_bdflush , 2) 1157 MIPS_SYS(sys_sysfs , 3) /* 4135 */ 1158 MIPS_SYS(sys_personality , 1) 1159 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */ 1160 MIPS_SYS(sys_setfsuid , 1) 1161 MIPS_SYS(sys_setfsgid , 1) 1162 MIPS_SYS(sys_llseek , 5) /* 4140 */ 1163 MIPS_SYS(sys_getdents , 3) 1164 MIPS_SYS(sys_select , 5) 1165 MIPS_SYS(sys_flock , 2) 1166 MIPS_SYS(sys_msync , 3) 1167 MIPS_SYS(sys_readv , 3) /* 4145 */ 1168 MIPS_SYS(sys_writev , 3) 1169 MIPS_SYS(sys_cacheflush , 3) 1170 MIPS_SYS(sys_cachectl , 3) 1171 MIPS_SYS(sys_sysmips , 4) 1172 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */ 1173 MIPS_SYS(sys_getsid , 1) 1174 MIPS_SYS(sys_fdatasync , 0) 1175 MIPS_SYS(sys_sysctl , 1) 1176 MIPS_SYS(sys_mlock , 2) 1177 MIPS_SYS(sys_munlock , 2) /* 4155 */ 1178 MIPS_SYS(sys_mlockall , 1) 1179 MIPS_SYS(sys_munlockall , 0) 1180 MIPS_SYS(sys_sched_setparam, 2) 1181 MIPS_SYS(sys_sched_getparam, 2) 1182 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */ 1183 MIPS_SYS(sys_sched_getscheduler, 1) 1184 MIPS_SYS(sys_sched_yield , 0) 1185 MIPS_SYS(sys_sched_get_priority_max, 1) 1186 MIPS_SYS(sys_sched_get_priority_min, 1) 1187 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */ 1188 MIPS_SYS(sys_nanosleep, 2) 1189 MIPS_SYS(sys_mremap , 4) 1190 MIPS_SYS(sys_accept , 3) 1191 MIPS_SYS(sys_bind , 3) 1192 MIPS_SYS(sys_connect , 3) /* 4170 */ 1193 MIPS_SYS(sys_getpeername , 3) 1194 MIPS_SYS(sys_getsockname , 3) 1195 MIPS_SYS(sys_getsockopt , 5) 1196 MIPS_SYS(sys_listen , 2) 1197 MIPS_SYS(sys_recv , 4) /* 4175 */ 1198 MIPS_SYS(sys_recvfrom , 6) 1199 MIPS_SYS(sys_recvmsg , 3) 1200 MIPS_SYS(sys_send , 4) 1201 MIPS_SYS(sys_sendmsg , 3) 1202 MIPS_SYS(sys_sendto , 6) /* 4180 */ 1203 MIPS_SYS(sys_setsockopt , 5) 1204 MIPS_SYS(sys_shutdown , 2) 1205 MIPS_SYS(sys_socket , 3) 1206 MIPS_SYS(sys_socketpair , 4) 1207 MIPS_SYS(sys_setresuid , 3) /* 4185 */ 1208 MIPS_SYS(sys_getresuid , 3) 1209 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */ 1210 MIPS_SYS(sys_poll , 3) 1211 MIPS_SYS(sys_nfsservctl , 3) 1212 MIPS_SYS(sys_setresgid , 3) /* 4190 */ 1213 MIPS_SYS(sys_getresgid , 3) 1214 MIPS_SYS(sys_prctl , 5) 1215 MIPS_SYS(sys_rt_sigreturn, 0) 1216 MIPS_SYS(sys_rt_sigaction, 4) 1217 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */ 1218 MIPS_SYS(sys_rt_sigpending, 2) 1219 MIPS_SYS(sys_rt_sigtimedwait, 4) 1220 MIPS_SYS(sys_rt_sigqueueinfo, 3) 1221 MIPS_SYS(sys_rt_sigsuspend, 0) 1222 MIPS_SYS(sys_pread64 , 6) /* 4200 */ 1223 MIPS_SYS(sys_pwrite64 , 6) 1224 MIPS_SYS(sys_chown , 3) 1225 MIPS_SYS(sys_getcwd , 2) 1226 MIPS_SYS(sys_capget , 2) 1227 MIPS_SYS(sys_capset , 2) /* 4205 */ 1228 MIPS_SYS(sys_sigaltstack , 0) 1229 MIPS_SYS(sys_sendfile , 4) 1230 MIPS_SYS(sys_ni_syscall , 0) 1231 MIPS_SYS(sys_ni_syscall , 0) 1232 MIPS_SYS(sys_mmap2 , 6) /* 4210 */ 1233 MIPS_SYS(sys_truncate64 , 4) 1234 MIPS_SYS(sys_ftruncate64 , 4) 1235 MIPS_SYS(sys_stat64 , 2) 1236 MIPS_SYS(sys_lstat64 , 2) 1237 MIPS_SYS(sys_fstat64 , 2) /* 4215 */ 1238 MIPS_SYS(sys_pivot_root , 2) 1239 MIPS_SYS(sys_mincore , 3) 1240 MIPS_SYS(sys_madvise , 3) 1241 MIPS_SYS(sys_getdents64 , 3) 1242 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */ 1243 MIPS_SYS(sys_ni_syscall , 0) 1244 MIPS_SYS(sys_gettid , 0) 1245 MIPS_SYS(sys_readahead , 5) 1246 MIPS_SYS(sys_setxattr , 5) 1247 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */ 1248 MIPS_SYS(sys_fsetxattr , 5) 1249 MIPS_SYS(sys_getxattr , 4) 1250 MIPS_SYS(sys_lgetxattr , 4) 1251 MIPS_SYS(sys_fgetxattr , 4) 1252 MIPS_SYS(sys_listxattr , 3) /* 4230 */ 1253 MIPS_SYS(sys_llistxattr , 3) 1254 MIPS_SYS(sys_flistxattr , 3) 1255 MIPS_SYS(sys_removexattr , 2) 1256 MIPS_SYS(sys_lremovexattr, 2) 1257 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */ 1258 MIPS_SYS(sys_tkill , 2) 1259 MIPS_SYS(sys_sendfile64 , 5) 1260 MIPS_SYS(sys_futex , 2) 1261 MIPS_SYS(sys_sched_setaffinity, 3) 1262 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */ 1263 MIPS_SYS(sys_io_setup , 2) 1264 MIPS_SYS(sys_io_destroy , 1) 1265 MIPS_SYS(sys_io_getevents, 5) 1266 MIPS_SYS(sys_io_submit , 3) 1267 MIPS_SYS(sys_io_cancel , 3) /* 4245 */ 1268 MIPS_SYS(sys_exit_group , 1) 1269 MIPS_SYS(sys_lookup_dcookie, 3) 1270 MIPS_SYS(sys_epoll_create, 1) 1271 MIPS_SYS(sys_epoll_ctl , 4) 1272 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */ 1273 MIPS_SYS(sys_remap_file_pages, 5) 1274 MIPS_SYS(sys_set_tid_address, 1) 1275 MIPS_SYS(sys_restart_syscall, 0) 1276 MIPS_SYS(sys_fadvise64_64, 7) 1277 MIPS_SYS(sys_statfs64 , 3) /* 4255 */ 1278 MIPS_SYS(sys_fstatfs64 , 2) 1279 MIPS_SYS(sys_timer_create, 3) 1280 MIPS_SYS(sys_timer_settime, 4) 1281 MIPS_SYS(sys_timer_gettime, 2) 1282 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */ 1283 MIPS_SYS(sys_timer_delete, 1) 1284 MIPS_SYS(sys_clock_settime, 2) 1285 MIPS_SYS(sys_clock_gettime, 2) 1286 MIPS_SYS(sys_clock_getres, 2) 1287 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */ 1288 MIPS_SYS(sys_tgkill , 3) 1289 MIPS_SYS(sys_utimes , 2) 1290 MIPS_SYS(sys_mbind , 4) 1291 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */ 1292 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */ 1293 MIPS_SYS(sys_mq_open , 4) 1294 MIPS_SYS(sys_mq_unlink , 1) 1295 MIPS_SYS(sys_mq_timedsend, 5) 1296 MIPS_SYS(sys_mq_timedreceive, 5) 1297 MIPS_SYS(sys_mq_notify , 2) /* 4275 */ 1298 MIPS_SYS(sys_mq_getsetattr, 3) 1299 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */ 1300 MIPS_SYS(sys_waitid , 4) 1301 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */ 1302 MIPS_SYS(sys_add_key , 5) 1303 MIPS_SYS(sys_request_key , 4) 1304 MIPS_SYS(sys_keyctl , 5) 1305 MIPS_SYS(sys_set_thread_area, 1) 1306 }; 1307 1308 #undef MIPS_SYS 1309 1310 void cpu_loop(CPUMIPSState *env) 1311 { 1312 target_siginfo_t info; 1313 int trapnr, ret, nb_args; 1314 unsigned int syscall_num; 1315 target_ulong arg5, arg6, sp_reg; 1316 1317 for(;;) { 1318 trapnr = cpu_mips_exec(env); 1319 switch(trapnr) { 1320 case EXCP_SYSCALL: 1321 { 1322 syscall_num = env->gpr[2] - 4000; 1323 env->PC += 4; 1324 if (syscall_num >= sizeof(mips_syscall_args)) { 1325 ret = -ENOSYS; 1326 } else { 1327 nb_args = mips_syscall_args[syscall_num]; 1328 if (nb_args >= 5) { 1329 sp_reg = env->gpr[29]; 1330 /* these arguments are taken from the stack */ 1331 arg5 = tgetl(sp_reg + 16); 1332 if (nb_args >= 6) { 1333 arg6 = tgetl(sp_reg + 20); 1334 } else { 1335 arg6 = 0; 1336 } 1337 } else { 1338 arg5 = 0; 1339 arg6 = 0; 1340 } 1341 ret = do_syscall(env, 1342 env->gpr[2], 1343 env->gpr[4], 1344 env->gpr[5], 1345 env->gpr[6], 1346 env->gpr[7], 1347 arg5, 1348 arg6); 1349 } 1350 if ((unsigned int)ret >= (unsigned int)(-1133)) { 1351 env->gpr[7] = 1; /* error flag */ 1352 ret = -ret; 1353 env->gpr[0] = ret; 1354 env->gpr[2] = ret; 1355 } else { 1356 env->gpr[7] = 0; /* error flag */ 1357 env->gpr[2] = ret; 1358 } 1359 } 1360 break; 1361 case EXCP_TLBL: 1362 case EXCP_TLBS: 1363 case EXCP_CpU: 1364 case EXCP_RI: 1365 info.si_signo = TARGET_SIGILL; 1366 info.si_errno = 0; 1367 info.si_code = 0; 1368 queue_signal(info.si_signo, &info); 1369 break; 1370 case EXCP_INTERRUPT: 1371 /* just indicate that signals should be handled asap */ 1372 break; 1373 case EXCP_DEBUG: 1374 { 1375 int sig; 1376 1377 sig = gdb_handlesig (env, TARGET_SIGTRAP); 1378 if (sig) 1379 { 1380 info.si_signo = sig; 1381 info.si_errno = 0; 1382 info.si_code = TARGET_TRAP_BRKPT; 1383 queue_signal(info.si_signo, &info); 1384 } 1385 } 1386 break; 1387 default: 1388 // error: 1389 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 1390 trapnr); 1391 cpu_dump_state(env, stderr, fprintf, 0); 1392 abort(); 1393 } 1394 process_pending_signals(env); 1395 } 1396 } 1397 #endif 1398 1399 #ifdef TARGET_SH4 1400 void cpu_loop (CPUState *env) 1401 { 1402 int trapnr, ret; 1403 target_siginfo_t info; 1404 1405 while (1) { 1406 trapnr = cpu_sh4_exec (env); 1407 1408 switch (trapnr) { 1409 case 0x160: 1410 ret = do_syscall(env, 1411 env->gregs[3], 1412 env->gregs[4], 1413 env->gregs[5], 1414 env->gregs[6], 1415 env->gregs[7], 1416 env->gregs[0], 1417 0); 1418 env->gregs[0] = ret; 1419 env->pc += 2; 1420 break; 1421 case EXCP_DEBUG: 1422 { 1423 int sig; 1424 1425 sig = gdb_handlesig (env, TARGET_SIGTRAP); 1426 if (sig) 1427 { 1428 info.si_signo = sig; 1429 info.si_errno = 0; 1430 info.si_code = TARGET_TRAP_BRKPT; 1431 queue_signal(info.si_signo, &info); 1432 } 1433 } 1434 break; 1435 default: 1436 printf ("Unhandled trap: 0x%x\n", trapnr); 1437 cpu_dump_state(env, stderr, fprintf, 0); 1438 exit (1); 1439 } 1440 process_pending_signals (env); 1441 } 1442 } 1443 #endif 1444 1445 #ifdef TARGET_M68K 1446 1447 void cpu_loop(CPUM68KState *env) 1448 { 1449 int trapnr; 1450 unsigned int n; 1451 target_siginfo_t info; 1452 TaskState *ts = env->opaque; 1453 1454 for(;;) { 1455 trapnr = cpu_m68k_exec(env); 1456 switch(trapnr) { 1457 case EXCP_ILLEGAL: 1458 { 1459 if (ts->sim_syscalls) { 1460 uint16_t nr; 1461 nr = lduw(env->pc + 2); 1462 env->pc += 4; 1463 do_m68k_simcall(env, nr); 1464 } else { 1465 goto do_sigill; 1466 } 1467 } 1468 break; 1469 case EXCP_HALTED: 1470 /* Semihosing syscall. */ 1471 env->pc += 2; 1472 do_m68k_semihosting(env, env->dregs[0]); 1473 break; 1474 case EXCP_LINEA: 1475 case EXCP_LINEF: 1476 case EXCP_UNSUPPORTED: 1477 do_sigill: 1478 info.si_signo = SIGILL; 1479 info.si_errno = 0; 1480 info.si_code = TARGET_ILL_ILLOPN; 1481 info._sifields._sigfault._addr = env->pc; 1482 queue_signal(info.si_signo, &info); 1483 break; 1484 case EXCP_TRAP0: 1485 { 1486 ts->sim_syscalls = 0; 1487 n = env->dregs[0]; 1488 env->pc += 2; 1489 env->dregs[0] = do_syscall(env, 1490 n, 1491 env->dregs[1], 1492 env->dregs[2], 1493 env->dregs[3], 1494 env->dregs[4], 1495 env->dregs[5], 1496 env->dregs[6]); 1497 } 1498 break; 1499 case EXCP_INTERRUPT: 1500 /* just indicate that signals should be handled asap */ 1501 break; 1502 case EXCP_ACCESS: 1503 { 1504 info.si_signo = SIGSEGV; 1505 info.si_errno = 0; 1506 /* XXX: check env->error_code */ 1507 info.si_code = TARGET_SEGV_MAPERR; 1508 info._sifields._sigfault._addr = env->mmu.ar; 1509 queue_signal(info.si_signo, &info); 1510 } 1511 break; 1512 case EXCP_DEBUG: 1513 { 1514 int sig; 1515 1516 sig = gdb_handlesig (env, TARGET_SIGTRAP); 1517 if (sig) 1518 { 1519 info.si_signo = sig; 1520 info.si_errno = 0; 1521 info.si_code = TARGET_TRAP_BRKPT; 1522 queue_signal(info.si_signo, &info); 1523 } 1524 } 1525 break; 1526 default: 1527 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 1528 trapnr); 1529 cpu_dump_state(env, stderr, fprintf, 0); 1530 abort(); 1531 } 1532 process_pending_signals(env); 1533 } 1534 } 1535 #endif /* TARGET_M68K */ 1536 1537 #ifdef TARGET_ALPHA 1538 void cpu_loop (CPUState *env) 1539 { 1540 int trapnr, ret; 1541 target_siginfo_t info; 1542 1543 while (1) { 1544 trapnr = cpu_alpha_exec (env); 1545 1546 switch (trapnr) { 1547 case EXCP_RESET: 1548 fprintf(stderr, "Reset requested. Exit\n"); 1549 exit(1); 1550 break; 1551 case EXCP_MCHK: 1552 fprintf(stderr, "Machine check exception. Exit\n"); 1553 exit(1); 1554 break; 1555 case EXCP_ARITH: 1556 fprintf(stderr, "Arithmetic trap.\n"); 1557 exit(1); 1558 break; 1559 case EXCP_HW_INTERRUPT: 1560 fprintf(stderr, "External interrupt. Exit\n"); 1561 exit(1); 1562 break; 1563 case EXCP_DFAULT: 1564 fprintf(stderr, "MMU data fault\n"); 1565 exit(1); 1566 break; 1567 case EXCP_DTB_MISS_PAL: 1568 fprintf(stderr, "MMU data TLB miss in PALcode\n"); 1569 exit(1); 1570 break; 1571 case EXCP_ITB_MISS: 1572 fprintf(stderr, "MMU instruction TLB miss\n"); 1573 exit(1); 1574 break; 1575 case EXCP_ITB_ACV: 1576 fprintf(stderr, "MMU instruction access violation\n"); 1577 exit(1); 1578 break; 1579 case EXCP_DTB_MISS_NATIVE: 1580 fprintf(stderr, "MMU data TLB miss\n"); 1581 exit(1); 1582 break; 1583 case EXCP_UNALIGN: 1584 fprintf(stderr, "Unaligned access\n"); 1585 exit(1); 1586 break; 1587 case EXCP_OPCDEC: 1588 fprintf(stderr, "Invalid instruction\n"); 1589 exit(1); 1590 break; 1591 case EXCP_FEN: 1592 fprintf(stderr, "Floating-point not allowed\n"); 1593 exit(1); 1594 break; 1595 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1): 1596 fprintf(stderr, "Call to PALcode\n"); 1597 call_pal(env, (trapnr >> 6) | 0x80); 1598 break; 1599 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1): 1600 fprintf(stderr, "Priviledged call to PALcode\n"); 1601 exit(1); 1602 break; 1603 case EXCP_DEBUG: 1604 { 1605 int sig; 1606 1607 sig = gdb_handlesig (env, TARGET_SIGTRAP); 1608 if (sig) 1609 { 1610 info.si_signo = sig; 1611 info.si_errno = 0; 1612 info.si_code = TARGET_TRAP_BRKPT; 1613 queue_signal(info.si_signo, &info); 1614 } 1615 } 1616 break; 1617 default: 1618 printf ("Unhandled trap: 0x%x\n", trapnr); 1619 cpu_dump_state(env, stderr, fprintf, 0); 1620 exit (1); 1621 } 1622 process_pending_signals (env); 1623 } 1624 } 1625 #endif /* TARGET_ALPHA */ 1626 1627 void usage(void) 1628 { 1629 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n" 1630 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n" 1631 "Linux CPU emulator (compiled for %s emulation)\n" 1632 "\n" 1633 "-h print this help\n" 1634 "-g port wait gdb connection to port\n" 1635 "-L path set the elf interpreter prefix (default=%s)\n" 1636 "-s size set the stack size in bytes (default=%ld)\n" 1637 "-cpu model select CPU (-cpu ? for list)\n" 1638 "\n" 1639 "debug options:\n" 1640 #ifdef USE_CODE_COPY 1641 "-no-code-copy disable code copy acceleration\n" 1642 #endif 1643 "-d options activate log (logfile=%s)\n" 1644 "-p pagesize set the host page size to 'pagesize'\n", 1645 TARGET_ARCH, 1646 interp_prefix, 1647 x86_stack_size, 1648 DEBUG_LOGFILE); 1649 _exit(1); 1650 } 1651 1652 /* XXX: currently only used for async signals (see signal.c) */ 1653 CPUState *global_env; 1654 1655 /* used to free thread contexts */ 1656 TaskState *first_task_state; 1657 1658 int main(int argc, char **argv) 1659 { 1660 const char *filename; 1661 const char *cpu_model; 1662 struct target_pt_regs regs1, *regs = ®s1; 1663 struct image_info info1, *info = &info1; 1664 TaskState ts1, *ts = &ts1; 1665 CPUState *env; 1666 int optind; 1667 const char *r; 1668 int gdbstub_port = 0; 1669 1670 if (argc <= 1) 1671 usage(); 1672 1673 /* init debug */ 1674 cpu_set_log_filename(DEBUG_LOGFILE); 1675 1676 cpu_model = NULL; 1677 optind = 1; 1678 for(;;) { 1679 if (optind >= argc) 1680 break; 1681 r = argv[optind]; 1682 if (r[0] != '-') 1683 break; 1684 optind++; 1685 r++; 1686 if (!strcmp(r, "-")) { 1687 break; 1688 } else if (!strcmp(r, "d")) { 1689 int mask; 1690 CPULogItem *item; 1691 1692 if (optind >= argc) 1693 break; 1694 1695 r = argv[optind++]; 1696 mask = cpu_str_to_log_mask(r); 1697 if (!mask) { 1698 printf("Log items (comma separated):\n"); 1699 for(item = cpu_log_items; item->mask != 0; item++) { 1700 printf("%-10s %s\n", item->name, item->help); 1701 } 1702 exit(1); 1703 } 1704 cpu_set_log(mask); 1705 } else if (!strcmp(r, "s")) { 1706 r = argv[optind++]; 1707 x86_stack_size = strtol(r, (char **)&r, 0); 1708 if (x86_stack_size <= 0) 1709 usage(); 1710 if (*r == 'M') 1711 x86_stack_size *= 1024 * 1024; 1712 else if (*r == 'k' || *r == 'K') 1713 x86_stack_size *= 1024; 1714 } else if (!strcmp(r, "L")) { 1715 interp_prefix = argv[optind++]; 1716 } else if (!strcmp(r, "p")) { 1717 qemu_host_page_size = atoi(argv[optind++]); 1718 if (qemu_host_page_size == 0 || 1719 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { 1720 fprintf(stderr, "page size must be a power of two\n"); 1721 exit(1); 1722 } 1723 } else if (!strcmp(r, "g")) { 1724 gdbstub_port = atoi(argv[optind++]); 1725 } else if (!strcmp(r, "r")) { 1726 qemu_uname_release = argv[optind++]; 1727 } else if (!strcmp(r, "cpu")) { 1728 cpu_model = argv[optind++]; 1729 if (strcmp(cpu_model, "?") == 0) { 1730 #if defined(TARGET_PPC) 1731 ppc_cpu_list(stdout, &fprintf); 1732 #elif defined(TARGET_ARM) 1733 arm_cpu_list(); 1734 #elif defined(TARGET_MIPS) 1735 mips_cpu_list(stdout, &fprintf); 1736 #endif 1737 _exit(1); 1738 } 1739 } else 1740 #ifdef USE_CODE_COPY 1741 if (!strcmp(r, "no-code-copy")) { 1742 code_copy_enabled = 0; 1743 } else 1744 #endif 1745 { 1746 usage(); 1747 } 1748 } 1749 if (optind >= argc) 1750 usage(); 1751 filename = argv[optind]; 1752 1753 /* Zero out regs */ 1754 memset(regs, 0, sizeof(struct target_pt_regs)); 1755 1756 /* Zero out image_info */ 1757 memset(info, 0, sizeof(struct image_info)); 1758 1759 /* Scan interp_prefix dir for replacement files. */ 1760 init_paths(interp_prefix); 1761 1762 /* NOTE: we need to init the CPU at this stage to get 1763 qemu_host_page_size */ 1764 env = cpu_init(); 1765 global_env = env; 1766 1767 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) { 1768 printf("Error loading %s\n", filename); 1769 _exit(1); 1770 } 1771 1772 if (loglevel) { 1773 page_dump(logfile); 1774 1775 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk); 1776 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code); 1777 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code); 1778 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data); 1779 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data); 1780 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack); 1781 fprintf(logfile, "brk 0x%08lx\n" , info->brk); 1782 fprintf(logfile, "entry 0x%08lx\n" , info->entry); 1783 } 1784 1785 target_set_brk(info->brk); 1786 syscall_init(); 1787 signal_init(); 1788 1789 /* build Task State */ 1790 memset(ts, 0, sizeof(TaskState)); 1791 env->opaque = ts; 1792 ts->used = 1; 1793 ts->info = info; 1794 env->user_mode_only = 1; 1795 1796 #if defined(TARGET_I386) 1797 cpu_x86_set_cpl(env, 3); 1798 1799 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; 1800 env->hflags |= HF_PE_MASK; 1801 if (env->cpuid_features & CPUID_SSE) { 1802 env->cr[4] |= CR4_OSFXSR_MASK; 1803 env->hflags |= HF_OSFXSR_MASK; 1804 } 1805 1806 /* flags setup : we activate the IRQs by default as in user mode */ 1807 env->eflags |= IF_MASK; 1808 1809 /* linux register setup */ 1810 env->regs[R_EAX] = regs->eax; 1811 env->regs[R_EBX] = regs->ebx; 1812 env->regs[R_ECX] = regs->ecx; 1813 env->regs[R_EDX] = regs->edx; 1814 env->regs[R_ESI] = regs->esi; 1815 env->regs[R_EDI] = regs->edi; 1816 env->regs[R_EBP] = regs->ebp; 1817 env->regs[R_ESP] = regs->esp; 1818 env->eip = regs->eip; 1819 1820 /* linux interrupt setup */ 1821 env->idt.base = h2g(idt_table); 1822 env->idt.limit = sizeof(idt_table) - 1; 1823 set_idt(0, 0); 1824 set_idt(1, 0); 1825 set_idt(2, 0); 1826 set_idt(3, 3); 1827 set_idt(4, 3); 1828 set_idt(5, 3); 1829 set_idt(6, 0); 1830 set_idt(7, 0); 1831 set_idt(8, 0); 1832 set_idt(9, 0); 1833 set_idt(10, 0); 1834 set_idt(11, 0); 1835 set_idt(12, 0); 1836 set_idt(13, 0); 1837 set_idt(14, 0); 1838 set_idt(15, 0); 1839 set_idt(16, 0); 1840 set_idt(17, 0); 1841 set_idt(18, 0); 1842 set_idt(19, 0); 1843 set_idt(0x80, 3); 1844 1845 /* linux segment setup */ 1846 env->gdt.base = h2g(gdt_table); 1847 env->gdt.limit = sizeof(gdt_table) - 1; 1848 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, 1849 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 1850 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); 1851 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, 1852 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 1853 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); 1854 cpu_x86_load_seg(env, R_CS, __USER_CS); 1855 cpu_x86_load_seg(env, R_DS, __USER_DS); 1856 cpu_x86_load_seg(env, R_ES, __USER_DS); 1857 cpu_x86_load_seg(env, R_SS, __USER_DS); 1858 cpu_x86_load_seg(env, R_FS, __USER_DS); 1859 cpu_x86_load_seg(env, R_GS, __USER_DS); 1860 1861 #elif defined(TARGET_ARM) 1862 { 1863 int i; 1864 if (cpu_model == NULL) 1865 cpu_model = "arm926"; 1866 cpu_arm_set_model(env, cpu_model); 1867 cpsr_write(env, regs->uregs[16], 0xffffffff); 1868 for(i = 0; i < 16; i++) { 1869 env->regs[i] = regs->uregs[i]; 1870 } 1871 ts->stack_base = info->start_stack; 1872 ts->heap_base = info->brk; 1873 /* This will be filled in on the first SYS_HEAPINFO call. */ 1874 ts->heap_limit = 0; 1875 } 1876 #elif defined(TARGET_SPARC) 1877 { 1878 int i; 1879 env->pc = regs->pc; 1880 env->npc = regs->npc; 1881 env->y = regs->y; 1882 for(i = 0; i < 8; i++) 1883 env->gregs[i] = regs->u_regs[i]; 1884 for(i = 0; i < 8; i++) 1885 env->regwptr[i] = regs->u_regs[i + 8]; 1886 } 1887 #elif defined(TARGET_PPC) 1888 { 1889 ppc_def_t *def; 1890 int i; 1891 1892 /* Choose and initialise CPU */ 1893 if (cpu_model == NULL) 1894 cpu_model = "750"; 1895 ppc_find_by_name(cpu_model, &def); 1896 if (def == NULL) { 1897 cpu_abort(env, 1898 "Unable to find PowerPC CPU definition\n"); 1899 } 1900 cpu_ppc_register(env, def); 1901 1902 for (i = 0; i < 32; i++) { 1903 if (i != 12 && i != 6 && i != 13) 1904 env->msr[i] = (regs->msr >> i) & 1; 1905 } 1906 env->nip = regs->nip; 1907 for(i = 0; i < 32; i++) { 1908 env->gpr[i] = regs->gpr[i]; 1909 } 1910 } 1911 #elif defined(TARGET_M68K) 1912 { 1913 m68k_def_t *def; 1914 def = m68k_find_by_name("cfv4e"); 1915 if (def == NULL) { 1916 cpu_abort(cpu_single_env, 1917 "Unable to find m68k CPU definition\n"); 1918 } 1919 cpu_m68k_register(cpu_single_env, def); 1920 env->pc = regs->pc; 1921 env->dregs[0] = regs->d0; 1922 env->dregs[1] = regs->d1; 1923 env->dregs[2] = regs->d2; 1924 env->dregs[3] = regs->d3; 1925 env->dregs[4] = regs->d4; 1926 env->dregs[5] = regs->d5; 1927 env->dregs[6] = regs->d6; 1928 env->dregs[7] = regs->d7; 1929 env->aregs[0] = regs->a0; 1930 env->aregs[1] = regs->a1; 1931 env->aregs[2] = regs->a2; 1932 env->aregs[3] = regs->a3; 1933 env->aregs[4] = regs->a4; 1934 env->aregs[5] = regs->a5; 1935 env->aregs[6] = regs->a6; 1936 env->aregs[7] = regs->usp; 1937 env->sr = regs->sr; 1938 ts->sim_syscalls = 1; 1939 } 1940 #elif defined(TARGET_MIPS) 1941 { 1942 mips_def_t *def; 1943 int i; 1944 1945 /* Choose and initialise CPU */ 1946 if (cpu_model == NULL) 1947 cpu_model = "24Kf"; 1948 mips_find_by_name(cpu_model, &def); 1949 if (def == NULL) 1950 cpu_abort(env, "Unable to find MIPS CPU definition\n"); 1951 cpu_mips_register(env, def); 1952 1953 for(i = 0; i < 32; i++) { 1954 env->gpr[i] = regs->regs[i]; 1955 } 1956 env->PC = regs->cp0_epc; 1957 if (env->CP0_Config1 & (1 << CP0C1_FP)) { 1958 env->CP0_Status |= (1 << CP0St_CU1); 1959 } 1960 } 1961 #elif defined(TARGET_SH4) 1962 { 1963 int i; 1964 1965 for(i = 0; i < 16; i++) { 1966 env->gregs[i] = regs->regs[i]; 1967 } 1968 env->pc = regs->pc; 1969 } 1970 #elif defined(TARGET_ALPHA) 1971 { 1972 int i; 1973 1974 for(i = 0; i < 28; i++) { 1975 env->ir[i] = ((target_ulong *)regs)[i]; 1976 } 1977 env->ipr[IPR_USP] = regs->usp; 1978 env->ir[30] = regs->usp; 1979 env->pc = regs->pc; 1980 env->unique = regs->unique; 1981 } 1982 #else 1983 #error unsupported target CPU 1984 #endif 1985 1986 if (gdbstub_port) { 1987 gdbserver_start (gdbstub_port); 1988 gdb_handlesig(env, 0); 1989 } 1990 cpu_loop(env); 1991 /* never exits */ 1992 return 0; 1993 } 1994