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 env->psr |= PSR_CARRY; 563 ret = -ret; 564 } else { 565 env->psr &= ~PSR_CARRY; 566 } 567 env->regwptr[0] = ret; 568 /* next instruction */ 569 env->pc = env->npc; 570 env->npc = env->npc + 4; 571 break; 572 case 0x83: /* flush windows */ 573 flush_windows(env); 574 /* next instruction */ 575 env->pc = env->npc; 576 env->npc = env->npc + 4; 577 break; 578 #ifndef TARGET_SPARC64 579 case TT_WIN_OVF: /* window overflow */ 580 save_window(env); 581 break; 582 case TT_WIN_UNF: /* window underflow */ 583 restore_window(env); 584 break; 585 case TT_TFAULT: 586 case TT_DFAULT: 587 { 588 info.si_signo = SIGSEGV; 589 info.si_errno = 0; 590 /* XXX: check env->error_code */ 591 info.si_code = TARGET_SEGV_MAPERR; 592 info._sifields._sigfault._addr = env->mmuregs[4]; 593 queue_signal(info.si_signo, &info); 594 } 595 break; 596 #else 597 case TT_SPILL: /* window overflow */ 598 save_window(env); 599 break; 600 case TT_FILL: /* window underflow */ 601 restore_window(env); 602 break; 603 // XXX 604 #endif 605 case EXCP_INTERRUPT: 606 /* just indicate that signals should be handled asap */ 607 break; 608 case EXCP_DEBUG: 609 { 610 int sig; 611 612 sig = gdb_handlesig (env, TARGET_SIGTRAP); 613 if (sig) 614 { 615 info.si_signo = sig; 616 info.si_errno = 0; 617 info.si_code = TARGET_TRAP_BRKPT; 618 queue_signal(info.si_signo, &info); 619 } 620 } 621 break; 622 default: 623 printf ("Unhandled trap: 0x%x\n", trapnr); 624 cpu_dump_state(env, stderr, fprintf, 0); 625 exit (1); 626 } 627 process_pending_signals (env); 628 } 629 } 630 631 #endif 632 633 #ifdef TARGET_PPC 634 635 static inline uint64_t cpu_ppc_get_tb (CPUState *env) 636 { 637 /* TO FIX */ 638 return 0; 639 } 640 641 uint32_t cpu_ppc_load_tbl (CPUState *env) 642 { 643 return cpu_ppc_get_tb(env) & 0xFFFFFFFF; 644 } 645 646 uint32_t cpu_ppc_load_tbu (CPUState *env) 647 { 648 return cpu_ppc_get_tb(env) >> 32; 649 } 650 651 static void cpu_ppc_store_tb (CPUState *env, uint64_t value) 652 { 653 /* TO FIX */ 654 } 655 656 void cpu_ppc_store_tbu (CPUState *env, uint32_t value) 657 { 658 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env)); 659 } 660 661 void cpu_ppc_store_tbl (CPUState *env, uint32_t value) 662 { 663 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value); 664 } 665 666 uint32_t cpu_ppc_load_decr (CPUState *env) 667 { 668 /* TO FIX */ 669 return -1; 670 } 671 672 void cpu_ppc_store_decr (CPUState *env, uint32_t value) 673 { 674 /* TO FIX */ 675 } 676 677 void cpu_loop(CPUPPCState *env) 678 { 679 target_siginfo_t info; 680 int trapnr; 681 uint32_t ret; 682 683 for(;;) { 684 trapnr = cpu_ppc_exec(env); 685 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH && 686 trapnr != EXCP_TRACE) { 687 if (loglevel > 0) { 688 cpu_dump_state(env, logfile, fprintf, 0); 689 } 690 } 691 switch(trapnr) { 692 case EXCP_NONE: 693 break; 694 case EXCP_SYSCALL_USER: 695 /* system call */ 696 /* WARNING: 697 * PPC ABI uses overflow flag in cr0 to signal an error 698 * in syscalls. 699 */ 700 #if 0 701 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0], 702 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); 703 #endif 704 env->crf[0] &= ~0x1; 705 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], 706 env->gpr[5], env->gpr[6], env->gpr[7], 707 env->gpr[8]); 708 if (ret > (uint32_t)(-515)) { 709 env->crf[0] |= 0x1; 710 ret = -ret; 711 } 712 env->gpr[3] = ret; 713 #if 0 714 printf("syscall returned 0x%08x (%d)\n", ret, ret); 715 #endif 716 break; 717 case EXCP_RESET: 718 /* Should not happen ! */ 719 fprintf(stderr, "RESET asked... Stop emulation\n"); 720 if (loglevel) 721 fprintf(logfile, "RESET asked... Stop emulation\n"); 722 abort(); 723 case EXCP_MACHINE_CHECK: 724 fprintf(stderr, "Machine check exeption... Stop emulation\n"); 725 if (loglevel) 726 fprintf(logfile, "RESET asked... Stop emulation\n"); 727 info.si_signo = TARGET_SIGBUS; 728 info.si_errno = 0; 729 info.si_code = TARGET_BUS_OBJERR; 730 info._sifields._sigfault._addr = env->nip - 4; 731 queue_signal(info.si_signo, &info); 732 case EXCP_DSI: 733 fprintf(stderr, "Invalid data memory access: 0x%08x\n", 734 env->spr[SPR_DAR]); 735 if (loglevel) { 736 fprintf(logfile, "Invalid data memory access: 0x%08x\n", 737 env->spr[SPR_DAR]); 738 } 739 switch (env->error_code & 0xFF000000) { 740 case 0x40000000: 741 info.si_signo = TARGET_SIGSEGV; 742 info.si_errno = 0; 743 info.si_code = TARGET_SEGV_MAPERR; 744 break; 745 case 0x04000000: 746 info.si_signo = TARGET_SIGILL; 747 info.si_errno = 0; 748 info.si_code = TARGET_ILL_ILLADR; 749 break; 750 case 0x08000000: 751 info.si_signo = TARGET_SIGSEGV; 752 info.si_errno = 0; 753 info.si_code = TARGET_SEGV_ACCERR; 754 break; 755 default: 756 /* Let's send a regular segfault... */ 757 fprintf(stderr, "Invalid segfault errno (%02x)\n", 758 env->error_code); 759 if (loglevel) { 760 fprintf(logfile, "Invalid segfault errno (%02x)\n", 761 env->error_code); 762 } 763 info.si_signo = TARGET_SIGSEGV; 764 info.si_errno = 0; 765 info.si_code = TARGET_SEGV_MAPERR; 766 break; 767 } 768 info._sifields._sigfault._addr = env->nip; 769 queue_signal(info.si_signo, &info); 770 break; 771 case EXCP_ISI: 772 fprintf(stderr, "Invalid instruction fetch\n"); 773 if (loglevel) 774 fprintf(logfile, "Invalid instruction fetch\n"); 775 switch (env->error_code & 0xFF000000) { 776 case 0x40000000: 777 info.si_signo = TARGET_SIGSEGV; 778 info.si_errno = 0; 779 info.si_code = TARGET_SEGV_MAPERR; 780 break; 781 case 0x10000000: 782 case 0x08000000: 783 info.si_signo = TARGET_SIGSEGV; 784 info.si_errno = 0; 785 info.si_code = TARGET_SEGV_ACCERR; 786 break; 787 default: 788 /* Let's send a regular segfault... */ 789 fprintf(stderr, "Invalid segfault errno (%02x)\n", 790 env->error_code); 791 if (loglevel) { 792 fprintf(logfile, "Invalid segfault errno (%02x)\n", 793 env->error_code); 794 } 795 info.si_signo = TARGET_SIGSEGV; 796 info.si_errno = 0; 797 info.si_code = TARGET_SEGV_MAPERR; 798 break; 799 } 800 info._sifields._sigfault._addr = env->nip - 4; 801 queue_signal(info.si_signo, &info); 802 break; 803 case EXCP_EXTERNAL: 804 /* Should not happen ! */ 805 fprintf(stderr, "External interruption... Stop emulation\n"); 806 if (loglevel) 807 fprintf(logfile, "External interruption... Stop emulation\n"); 808 abort(); 809 case EXCP_ALIGN: 810 fprintf(stderr, "Invalid unaligned memory access\n"); 811 if (loglevel) 812 fprintf(logfile, "Invalid unaligned memory access\n"); 813 info.si_signo = TARGET_SIGBUS; 814 info.si_errno = 0; 815 info.si_code = TARGET_BUS_ADRALN; 816 info._sifields._sigfault._addr = env->nip - 4; 817 queue_signal(info.si_signo, &info); 818 break; 819 case EXCP_PROGRAM: 820 switch (env->error_code & ~0xF) { 821 case EXCP_FP: 822 fprintf(stderr, "Program exception\n"); 823 if (loglevel) 824 fprintf(logfile, "Program exception\n"); 825 /* Set FX */ 826 env->fpscr[7] |= 0x8; 827 /* Finally, update FEX */ 828 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) & 829 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3))) 830 env->fpscr[7] |= 0x4; 831 info.si_signo = TARGET_SIGFPE; 832 info.si_errno = 0; 833 switch (env->error_code & 0xF) { 834 case EXCP_FP_OX: 835 info.si_code = TARGET_FPE_FLTOVF; 836 break; 837 case EXCP_FP_UX: 838 info.si_code = TARGET_FPE_FLTUND; 839 break; 840 case EXCP_FP_ZX: 841 case EXCP_FP_VXZDZ: 842 info.si_code = TARGET_FPE_FLTDIV; 843 break; 844 case EXCP_FP_XX: 845 info.si_code = TARGET_FPE_FLTRES; 846 break; 847 case EXCP_FP_VXSOFT: 848 info.si_code = TARGET_FPE_FLTINV; 849 break; 850 case EXCP_FP_VXNAN: 851 case EXCP_FP_VXISI: 852 case EXCP_FP_VXIDI: 853 case EXCP_FP_VXIMZ: 854 case EXCP_FP_VXVC: 855 case EXCP_FP_VXSQRT: 856 case EXCP_FP_VXCVI: 857 info.si_code = TARGET_FPE_FLTSUB; 858 break; 859 default: 860 fprintf(stderr, "Unknown floating point exception " 861 "(%02x)\n", env->error_code); 862 if (loglevel) { 863 fprintf(logfile, "Unknown floating point exception " 864 "(%02x)\n", env->error_code & 0xF); 865 } 866 } 867 break; 868 case EXCP_INVAL: 869 fprintf(stderr, "Invalid instruction\n"); 870 if (loglevel) 871 fprintf(logfile, "Invalid instruction\n"); 872 info.si_signo = TARGET_SIGILL; 873 info.si_errno = 0; 874 switch (env->error_code & 0xF) { 875 case EXCP_INVAL_INVAL: 876 info.si_code = TARGET_ILL_ILLOPC; 877 break; 878 case EXCP_INVAL_LSWX: 879 info.si_code = TARGET_ILL_ILLOPN; 880 break; 881 case EXCP_INVAL_SPR: 882 info.si_code = TARGET_ILL_PRVREG; 883 break; 884 case EXCP_INVAL_FP: 885 info.si_code = TARGET_ILL_COPROC; 886 break; 887 default: 888 fprintf(stderr, "Unknown invalid operation (%02x)\n", 889 env->error_code & 0xF); 890 if (loglevel) { 891 fprintf(logfile, "Unknown invalid operation (%02x)\n", 892 env->error_code & 0xF); 893 } 894 info.si_code = TARGET_ILL_ILLADR; 895 break; 896 } 897 break; 898 case EXCP_PRIV: 899 fprintf(stderr, "Privilege violation\n"); 900 if (loglevel) 901 fprintf(logfile, "Privilege violation\n"); 902 info.si_signo = TARGET_SIGILL; 903 info.si_errno = 0; 904 switch (env->error_code & 0xF) { 905 case EXCP_PRIV_OPC: 906 info.si_code = TARGET_ILL_PRVOPC; 907 break; 908 case EXCP_PRIV_REG: 909 info.si_code = TARGET_ILL_PRVREG; 910 break; 911 default: 912 fprintf(stderr, "Unknown privilege violation (%02x)\n", 913 env->error_code & 0xF); 914 info.si_code = TARGET_ILL_PRVOPC; 915 break; 916 } 917 break; 918 case EXCP_TRAP: 919 fprintf(stderr, "Tried to call a TRAP\n"); 920 if (loglevel) 921 fprintf(logfile, "Tried to call a TRAP\n"); 922 abort(); 923 default: 924 /* Should not happen ! */ 925 fprintf(stderr, "Unknown program exception (%02x)\n", 926 env->error_code); 927 if (loglevel) { 928 fprintf(logfile, "Unknwon program exception (%02x)\n", 929 env->error_code); 930 } 931 abort(); 932 } 933 info._sifields._sigfault._addr = env->nip - 4; 934 queue_signal(info.si_signo, &info); 935 break; 936 case EXCP_NO_FP: 937 fprintf(stderr, "No floating point allowed\n"); 938 if (loglevel) 939 fprintf(logfile, "No floating point allowed\n"); 940 info.si_signo = TARGET_SIGILL; 941 info.si_errno = 0; 942 info.si_code = TARGET_ILL_COPROC; 943 info._sifields._sigfault._addr = env->nip - 4; 944 queue_signal(info.si_signo, &info); 945 break; 946 case EXCP_DECR: 947 /* Should not happen ! */ 948 fprintf(stderr, "Decrementer exception\n"); 949 if (loglevel) 950 fprintf(logfile, "Decrementer exception\n"); 951 abort(); 952 case EXCP_TRACE: 953 /* Do nothing: we use this to trace execution */ 954 break; 955 case EXCP_FP_ASSIST: 956 /* Should not happen ! */ 957 fprintf(stderr, "Floating point assist exception\n"); 958 if (loglevel) 959 fprintf(logfile, "Floating point assist exception\n"); 960 abort(); 961 case EXCP_MTMSR: 962 /* We reloaded the msr, just go on */ 963 if (msr_pr == 0) { 964 fprintf(stderr, "Tried to go into supervisor mode !\n"); 965 if (loglevel) 966 fprintf(logfile, "Tried to go into supervisor mode !\n"); 967 abort(); 968 } 969 break; 970 case EXCP_BRANCH: 971 /* We stopped because of a jump... */ 972 break; 973 case EXCP_INTERRUPT: 974 /* Don't know why this should ever happen... */ 975 break; 976 case EXCP_DEBUG: 977 { 978 int sig; 979 980 sig = gdb_handlesig (env, TARGET_SIGTRAP); 981 if (sig) 982 { 983 info.si_signo = sig; 984 info.si_errno = 0; 985 info.si_code = TARGET_TRAP_BRKPT; 986 queue_signal(info.si_signo, &info); 987 } 988 } 989 break; 990 default: 991 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 992 trapnr); 993 if (loglevel) { 994 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - " 995 "0x%02x - aborting\n", trapnr, env->error_code); 996 } 997 abort(); 998 } 999 process_pending_signals(env); 1000 } 1001 } 1002 #endif 1003 1004 #ifdef TARGET_MIPS 1005 1006 #define MIPS_SYS(name, args) args, 1007 1008 static const uint8_t mips_syscall_args[] = { 1009 MIPS_SYS(sys_syscall , 0) /* 4000 */ 1010 MIPS_SYS(sys_exit , 1) 1011 MIPS_SYS(sys_fork , 0) 1012 MIPS_SYS(sys_read , 3) 1013 MIPS_SYS(sys_write , 3) 1014 MIPS_SYS(sys_open , 3) /* 4005 */ 1015 MIPS_SYS(sys_close , 1) 1016 MIPS_SYS(sys_waitpid , 3) 1017 MIPS_SYS(sys_creat , 2) 1018 MIPS_SYS(sys_link , 2) 1019 MIPS_SYS(sys_unlink , 1) /* 4010 */ 1020 MIPS_SYS(sys_execve , 0) 1021 MIPS_SYS(sys_chdir , 1) 1022 MIPS_SYS(sys_time , 1) 1023 MIPS_SYS(sys_mknod , 3) 1024 MIPS_SYS(sys_chmod , 2) /* 4015 */ 1025 MIPS_SYS(sys_lchown , 3) 1026 MIPS_SYS(sys_ni_syscall , 0) 1027 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */ 1028 MIPS_SYS(sys_lseek , 3) 1029 MIPS_SYS(sys_getpid , 0) /* 4020 */ 1030 MIPS_SYS(sys_mount , 5) 1031 MIPS_SYS(sys_oldumount , 1) 1032 MIPS_SYS(sys_setuid , 1) 1033 MIPS_SYS(sys_getuid , 0) 1034 MIPS_SYS(sys_stime , 1) /* 4025 */ 1035 MIPS_SYS(sys_ptrace , 4) 1036 MIPS_SYS(sys_alarm , 1) 1037 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */ 1038 MIPS_SYS(sys_pause , 0) 1039 MIPS_SYS(sys_utime , 2) /* 4030 */ 1040 MIPS_SYS(sys_ni_syscall , 0) 1041 MIPS_SYS(sys_ni_syscall , 0) 1042 MIPS_SYS(sys_access , 2) 1043 MIPS_SYS(sys_nice , 1) 1044 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */ 1045 MIPS_SYS(sys_sync , 0) 1046 MIPS_SYS(sys_kill , 2) 1047 MIPS_SYS(sys_rename , 2) 1048 MIPS_SYS(sys_mkdir , 2) 1049 MIPS_SYS(sys_rmdir , 1) /* 4040 */ 1050 MIPS_SYS(sys_dup , 1) 1051 MIPS_SYS(sys_pipe , 0) 1052 MIPS_SYS(sys_times , 1) 1053 MIPS_SYS(sys_ni_syscall , 0) 1054 MIPS_SYS(sys_brk , 1) /* 4045 */ 1055 MIPS_SYS(sys_setgid , 1) 1056 MIPS_SYS(sys_getgid , 0) 1057 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */ 1058 MIPS_SYS(sys_geteuid , 0) 1059 MIPS_SYS(sys_getegid , 0) /* 4050 */ 1060 MIPS_SYS(sys_acct , 0) 1061 MIPS_SYS(sys_umount , 2) 1062 MIPS_SYS(sys_ni_syscall , 0) 1063 MIPS_SYS(sys_ioctl , 3) 1064 MIPS_SYS(sys_fcntl , 3) /* 4055 */ 1065 MIPS_SYS(sys_ni_syscall , 2) 1066 MIPS_SYS(sys_setpgid , 2) 1067 MIPS_SYS(sys_ni_syscall , 0) 1068 MIPS_SYS(sys_olduname , 1) 1069 MIPS_SYS(sys_umask , 1) /* 4060 */ 1070 MIPS_SYS(sys_chroot , 1) 1071 MIPS_SYS(sys_ustat , 2) 1072 MIPS_SYS(sys_dup2 , 2) 1073 MIPS_SYS(sys_getppid , 0) 1074 MIPS_SYS(sys_getpgrp , 0) /* 4065 */ 1075 MIPS_SYS(sys_setsid , 0) 1076 MIPS_SYS(sys_sigaction , 3) 1077 MIPS_SYS(sys_sgetmask , 0) 1078 MIPS_SYS(sys_ssetmask , 1) 1079 MIPS_SYS(sys_setreuid , 2) /* 4070 */ 1080 MIPS_SYS(sys_setregid , 2) 1081 MIPS_SYS(sys_sigsuspend , 0) 1082 MIPS_SYS(sys_sigpending , 1) 1083 MIPS_SYS(sys_sethostname , 2) 1084 MIPS_SYS(sys_setrlimit , 2) /* 4075 */ 1085 MIPS_SYS(sys_getrlimit , 2) 1086 MIPS_SYS(sys_getrusage , 2) 1087 MIPS_SYS(sys_gettimeofday, 2) 1088 MIPS_SYS(sys_settimeofday, 2) 1089 MIPS_SYS(sys_getgroups , 2) /* 4080 */ 1090 MIPS_SYS(sys_setgroups , 2) 1091 MIPS_SYS(sys_ni_syscall , 0) /* old_select */ 1092 MIPS_SYS(sys_symlink , 2) 1093 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */ 1094 MIPS_SYS(sys_readlink , 3) /* 4085 */ 1095 MIPS_SYS(sys_uselib , 1) 1096 MIPS_SYS(sys_swapon , 2) 1097 MIPS_SYS(sys_reboot , 3) 1098 MIPS_SYS(old_readdir , 3) 1099 MIPS_SYS(old_mmap , 6) /* 4090 */ 1100 MIPS_SYS(sys_munmap , 2) 1101 MIPS_SYS(sys_truncate , 2) 1102 MIPS_SYS(sys_ftruncate , 2) 1103 MIPS_SYS(sys_fchmod , 2) 1104 MIPS_SYS(sys_fchown , 3) /* 4095 */ 1105 MIPS_SYS(sys_getpriority , 2) 1106 MIPS_SYS(sys_setpriority , 3) 1107 MIPS_SYS(sys_ni_syscall , 0) 1108 MIPS_SYS(sys_statfs , 2) 1109 MIPS_SYS(sys_fstatfs , 2) /* 4100 */ 1110 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */ 1111 MIPS_SYS(sys_socketcall , 2) 1112 MIPS_SYS(sys_syslog , 3) 1113 MIPS_SYS(sys_setitimer , 3) 1114 MIPS_SYS(sys_getitimer , 2) /* 4105 */ 1115 MIPS_SYS(sys_newstat , 2) 1116 MIPS_SYS(sys_newlstat , 2) 1117 MIPS_SYS(sys_newfstat , 2) 1118 MIPS_SYS(sys_uname , 1) 1119 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */ 1120 MIPS_SYS(sys_vhangup , 0) 1121 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */ 1122 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */ 1123 MIPS_SYS(sys_wait4 , 4) 1124 MIPS_SYS(sys_swapoff , 1) /* 4115 */ 1125 MIPS_SYS(sys_sysinfo , 1) 1126 MIPS_SYS(sys_ipc , 6) 1127 MIPS_SYS(sys_fsync , 1) 1128 MIPS_SYS(sys_sigreturn , 0) 1129 MIPS_SYS(sys_clone , 0) /* 4120 */ 1130 MIPS_SYS(sys_setdomainname, 2) 1131 MIPS_SYS(sys_newuname , 1) 1132 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */ 1133 MIPS_SYS(sys_adjtimex , 1) 1134 MIPS_SYS(sys_mprotect , 3) /* 4125 */ 1135 MIPS_SYS(sys_sigprocmask , 3) 1136 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */ 1137 MIPS_SYS(sys_init_module , 5) 1138 MIPS_SYS(sys_delete_module, 1) 1139 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */ 1140 MIPS_SYS(sys_quotactl , 0) 1141 MIPS_SYS(sys_getpgid , 1) 1142 MIPS_SYS(sys_fchdir , 1) 1143 MIPS_SYS(sys_bdflush , 2) 1144 MIPS_SYS(sys_sysfs , 3) /* 4135 */ 1145 MIPS_SYS(sys_personality , 1) 1146 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */ 1147 MIPS_SYS(sys_setfsuid , 1) 1148 MIPS_SYS(sys_setfsgid , 1) 1149 MIPS_SYS(sys_llseek , 5) /* 4140 */ 1150 MIPS_SYS(sys_getdents , 3) 1151 MIPS_SYS(sys_select , 5) 1152 MIPS_SYS(sys_flock , 2) 1153 MIPS_SYS(sys_msync , 3) 1154 MIPS_SYS(sys_readv , 3) /* 4145 */ 1155 MIPS_SYS(sys_writev , 3) 1156 MIPS_SYS(sys_cacheflush , 3) 1157 MIPS_SYS(sys_cachectl , 3) 1158 MIPS_SYS(sys_sysmips , 4) 1159 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */ 1160 MIPS_SYS(sys_getsid , 1) 1161 MIPS_SYS(sys_fdatasync , 0) 1162 MIPS_SYS(sys_sysctl , 1) 1163 MIPS_SYS(sys_mlock , 2) 1164 MIPS_SYS(sys_munlock , 2) /* 4155 */ 1165 MIPS_SYS(sys_mlockall , 1) 1166 MIPS_SYS(sys_munlockall , 0) 1167 MIPS_SYS(sys_sched_setparam, 2) 1168 MIPS_SYS(sys_sched_getparam, 2) 1169 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */ 1170 MIPS_SYS(sys_sched_getscheduler, 1) 1171 MIPS_SYS(sys_sched_yield , 0) 1172 MIPS_SYS(sys_sched_get_priority_max, 1) 1173 MIPS_SYS(sys_sched_get_priority_min, 1) 1174 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */ 1175 MIPS_SYS(sys_nanosleep, 2) 1176 MIPS_SYS(sys_mremap , 4) 1177 MIPS_SYS(sys_accept , 3) 1178 MIPS_SYS(sys_bind , 3) 1179 MIPS_SYS(sys_connect , 3) /* 4170 */ 1180 MIPS_SYS(sys_getpeername , 3) 1181 MIPS_SYS(sys_getsockname , 3) 1182 MIPS_SYS(sys_getsockopt , 5) 1183 MIPS_SYS(sys_listen , 2) 1184 MIPS_SYS(sys_recv , 4) /* 4175 */ 1185 MIPS_SYS(sys_recvfrom , 6) 1186 MIPS_SYS(sys_recvmsg , 3) 1187 MIPS_SYS(sys_send , 4) 1188 MIPS_SYS(sys_sendmsg , 3) 1189 MIPS_SYS(sys_sendto , 6) /* 4180 */ 1190 MIPS_SYS(sys_setsockopt , 5) 1191 MIPS_SYS(sys_shutdown , 2) 1192 MIPS_SYS(sys_socket , 3) 1193 MIPS_SYS(sys_socketpair , 4) 1194 MIPS_SYS(sys_setresuid , 3) /* 4185 */ 1195 MIPS_SYS(sys_getresuid , 3) 1196 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */ 1197 MIPS_SYS(sys_poll , 3) 1198 MIPS_SYS(sys_nfsservctl , 3) 1199 MIPS_SYS(sys_setresgid , 3) /* 4190 */ 1200 MIPS_SYS(sys_getresgid , 3) 1201 MIPS_SYS(sys_prctl , 5) 1202 MIPS_SYS(sys_rt_sigreturn, 0) 1203 MIPS_SYS(sys_rt_sigaction, 4) 1204 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */ 1205 MIPS_SYS(sys_rt_sigpending, 2) 1206 MIPS_SYS(sys_rt_sigtimedwait, 4) 1207 MIPS_SYS(sys_rt_sigqueueinfo, 3) 1208 MIPS_SYS(sys_rt_sigsuspend, 0) 1209 MIPS_SYS(sys_pread64 , 6) /* 4200 */ 1210 MIPS_SYS(sys_pwrite64 , 6) 1211 MIPS_SYS(sys_chown , 3) 1212 MIPS_SYS(sys_getcwd , 2) 1213 MIPS_SYS(sys_capget , 2) 1214 MIPS_SYS(sys_capset , 2) /* 4205 */ 1215 MIPS_SYS(sys_sigaltstack , 0) 1216 MIPS_SYS(sys_sendfile , 4) 1217 MIPS_SYS(sys_ni_syscall , 0) 1218 MIPS_SYS(sys_ni_syscall , 0) 1219 MIPS_SYS(sys_mmap2 , 6) /* 4210 */ 1220 MIPS_SYS(sys_truncate64 , 4) 1221 MIPS_SYS(sys_ftruncate64 , 4) 1222 MIPS_SYS(sys_stat64 , 2) 1223 MIPS_SYS(sys_lstat64 , 2) 1224 MIPS_SYS(sys_fstat64 , 2) /* 4215 */ 1225 MIPS_SYS(sys_pivot_root , 2) 1226 MIPS_SYS(sys_mincore , 3) 1227 MIPS_SYS(sys_madvise , 3) 1228 MIPS_SYS(sys_getdents64 , 3) 1229 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */ 1230 MIPS_SYS(sys_ni_syscall , 0) 1231 MIPS_SYS(sys_gettid , 0) 1232 MIPS_SYS(sys_readahead , 5) 1233 MIPS_SYS(sys_setxattr , 5) 1234 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */ 1235 MIPS_SYS(sys_fsetxattr , 5) 1236 MIPS_SYS(sys_getxattr , 4) 1237 MIPS_SYS(sys_lgetxattr , 4) 1238 MIPS_SYS(sys_fgetxattr , 4) 1239 MIPS_SYS(sys_listxattr , 3) /* 4230 */ 1240 MIPS_SYS(sys_llistxattr , 3) 1241 MIPS_SYS(sys_flistxattr , 3) 1242 MIPS_SYS(sys_removexattr , 2) 1243 MIPS_SYS(sys_lremovexattr, 2) 1244 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */ 1245 MIPS_SYS(sys_tkill , 2) 1246 MIPS_SYS(sys_sendfile64 , 5) 1247 MIPS_SYS(sys_futex , 2) 1248 MIPS_SYS(sys_sched_setaffinity, 3) 1249 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */ 1250 MIPS_SYS(sys_io_setup , 2) 1251 MIPS_SYS(sys_io_destroy , 1) 1252 MIPS_SYS(sys_io_getevents, 5) 1253 MIPS_SYS(sys_io_submit , 3) 1254 MIPS_SYS(sys_io_cancel , 3) /* 4245 */ 1255 MIPS_SYS(sys_exit_group , 1) 1256 MIPS_SYS(sys_lookup_dcookie, 3) 1257 MIPS_SYS(sys_epoll_create, 1) 1258 MIPS_SYS(sys_epoll_ctl , 4) 1259 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */ 1260 MIPS_SYS(sys_remap_file_pages, 5) 1261 MIPS_SYS(sys_set_tid_address, 1) 1262 MIPS_SYS(sys_restart_syscall, 0) 1263 MIPS_SYS(sys_fadvise64_64, 7) 1264 MIPS_SYS(sys_statfs64 , 3) /* 4255 */ 1265 MIPS_SYS(sys_fstatfs64 , 2) 1266 MIPS_SYS(sys_timer_create, 3) 1267 MIPS_SYS(sys_timer_settime, 4) 1268 MIPS_SYS(sys_timer_gettime, 2) 1269 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */ 1270 MIPS_SYS(sys_timer_delete, 1) 1271 MIPS_SYS(sys_clock_settime, 2) 1272 MIPS_SYS(sys_clock_gettime, 2) 1273 MIPS_SYS(sys_clock_getres, 2) 1274 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */ 1275 MIPS_SYS(sys_tgkill , 3) 1276 MIPS_SYS(sys_utimes , 2) 1277 MIPS_SYS(sys_mbind , 4) 1278 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */ 1279 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */ 1280 MIPS_SYS(sys_mq_open , 4) 1281 MIPS_SYS(sys_mq_unlink , 1) 1282 MIPS_SYS(sys_mq_timedsend, 5) 1283 MIPS_SYS(sys_mq_timedreceive, 5) 1284 MIPS_SYS(sys_mq_notify , 2) /* 4275 */ 1285 MIPS_SYS(sys_mq_getsetattr, 3) 1286 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */ 1287 MIPS_SYS(sys_waitid , 4) 1288 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */ 1289 MIPS_SYS(sys_add_key , 5) 1290 MIPS_SYS(sys_request_key , 4) 1291 MIPS_SYS(sys_keyctl , 5) 1292 }; 1293 1294 #undef MIPS_SYS 1295 1296 void cpu_loop(CPUMIPSState *env) 1297 { 1298 target_siginfo_t info; 1299 int trapnr, ret, nb_args; 1300 unsigned int syscall_num; 1301 target_ulong arg5, arg6, sp_reg; 1302 1303 for(;;) { 1304 trapnr = cpu_mips_exec(env); 1305 switch(trapnr) { 1306 case EXCP_SYSCALL: 1307 { 1308 syscall_num = env->gpr[2] - 4000; 1309 env->PC += 4; 1310 if (syscall_num >= sizeof(mips_syscall_args)) { 1311 ret = -ENOSYS; 1312 } else { 1313 nb_args = mips_syscall_args[syscall_num]; 1314 if (nb_args >= 5) { 1315 sp_reg = env->gpr[29]; 1316 /* these arguments are taken from the stack */ 1317 arg5 = tgetl(sp_reg + 16); 1318 if (nb_args >= 6) { 1319 arg6 = tgetl(sp_reg + 20); 1320 } else { 1321 arg6 = 0; 1322 } 1323 } else { 1324 arg5 = 0; 1325 arg6 = 0; 1326 } 1327 ret = do_syscall(env, 1328 env->gpr[2], 1329 env->gpr[4], 1330 env->gpr[5], 1331 env->gpr[6], 1332 env->gpr[7], 1333 arg5, 1334 arg6); 1335 } 1336 if ((unsigned int)ret >= (unsigned int)(-1133)) { 1337 env->gpr[7] = 1; /* error flag */ 1338 ret = -ret; 1339 env->gpr[0] = ret; 1340 env->gpr[2] = ret; 1341 } else { 1342 env->gpr[7] = 0; /* error flag */ 1343 env->gpr[2] = ret; 1344 } 1345 } 1346 break; 1347 case EXCP_CpU: 1348 case EXCP_RI: 1349 info.si_signo = TARGET_SIGILL; 1350 info.si_errno = 0; 1351 info.si_code = 0; 1352 queue_signal(info.si_signo, &info); 1353 break; 1354 case EXCP_INTERRUPT: 1355 /* just indicate that signals should be handled asap */ 1356 break; 1357 default: 1358 // error: 1359 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 1360 trapnr); 1361 cpu_dump_state(env, stderr, fprintf, 0); 1362 abort(); 1363 } 1364 process_pending_signals(env); 1365 } 1366 } 1367 #endif 1368 1369 #ifdef TARGET_SH4 1370 void cpu_loop (CPUState *env) 1371 { 1372 int trapnr, ret; 1373 target_siginfo_t info; 1374 1375 while (1) { 1376 trapnr = cpu_sh4_exec (env); 1377 1378 switch (trapnr) { 1379 case 0x160: 1380 ret = do_syscall(env, 1381 env->gregs[3], 1382 env->gregs[4], 1383 env->gregs[5], 1384 env->gregs[6], 1385 env->gregs[7], 1386 env->gregs[0], 1387 0); 1388 env->gregs[0] = ret; 1389 env->pc += 2; 1390 break; 1391 case EXCP_DEBUG: 1392 { 1393 int sig; 1394 1395 sig = gdb_handlesig (env, TARGET_SIGTRAP); 1396 if (sig) 1397 { 1398 info.si_signo = sig; 1399 info.si_errno = 0; 1400 info.si_code = TARGET_TRAP_BRKPT; 1401 queue_signal(info.si_signo, &info); 1402 } 1403 } 1404 break; 1405 default: 1406 printf ("Unhandled trap: 0x%x\n", trapnr); 1407 cpu_dump_state(env, stderr, fprintf, 0); 1408 exit (1); 1409 } 1410 process_pending_signals (env); 1411 } 1412 } 1413 #endif 1414 1415 void usage(void) 1416 { 1417 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n" 1418 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n" 1419 "Linux CPU emulator (compiled for %s emulation)\n" 1420 "\n" 1421 "-h print this help\n" 1422 "-g port wait gdb connection to port\n" 1423 "-L path set the elf interpreter prefix (default=%s)\n" 1424 "-s size set the stack size in bytes (default=%ld)\n" 1425 "\n" 1426 "debug options:\n" 1427 #ifdef USE_CODE_COPY 1428 "-no-code-copy disable code copy acceleration\n" 1429 #endif 1430 "-d options activate log (logfile=%s)\n" 1431 "-p pagesize set the host page size to 'pagesize'\n", 1432 TARGET_ARCH, 1433 interp_prefix, 1434 x86_stack_size, 1435 DEBUG_LOGFILE); 1436 _exit(1); 1437 } 1438 1439 /* XXX: currently only used for async signals (see signal.c) */ 1440 CPUState *global_env; 1441 1442 /* used to free thread contexts */ 1443 TaskState *first_task_state; 1444 1445 int main(int argc, char **argv) 1446 { 1447 const char *filename; 1448 struct target_pt_regs regs1, *regs = ®s1; 1449 struct image_info info1, *info = &info1; 1450 TaskState ts1, *ts = &ts1; 1451 CPUState *env; 1452 int optind; 1453 const char *r; 1454 int gdbstub_port = 0; 1455 1456 if (argc <= 1) 1457 usage(); 1458 1459 /* init debug */ 1460 cpu_set_log_filename(DEBUG_LOGFILE); 1461 1462 optind = 1; 1463 for(;;) { 1464 if (optind >= argc) 1465 break; 1466 r = argv[optind]; 1467 if (r[0] != '-') 1468 break; 1469 optind++; 1470 r++; 1471 if (!strcmp(r, "-")) { 1472 break; 1473 } else if (!strcmp(r, "d")) { 1474 int mask; 1475 CPULogItem *item; 1476 1477 if (optind >= argc) 1478 break; 1479 1480 r = argv[optind++]; 1481 mask = cpu_str_to_log_mask(r); 1482 if (!mask) { 1483 printf("Log items (comma separated):\n"); 1484 for(item = cpu_log_items; item->mask != 0; item++) { 1485 printf("%-10s %s\n", item->name, item->help); 1486 } 1487 exit(1); 1488 } 1489 cpu_set_log(mask); 1490 } else if (!strcmp(r, "s")) { 1491 r = argv[optind++]; 1492 x86_stack_size = strtol(r, (char **)&r, 0); 1493 if (x86_stack_size <= 0) 1494 usage(); 1495 if (*r == 'M') 1496 x86_stack_size *= 1024 * 1024; 1497 else if (*r == 'k' || *r == 'K') 1498 x86_stack_size *= 1024; 1499 } else if (!strcmp(r, "L")) { 1500 interp_prefix = argv[optind++]; 1501 } else if (!strcmp(r, "p")) { 1502 qemu_host_page_size = atoi(argv[optind++]); 1503 if (qemu_host_page_size == 0 || 1504 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { 1505 fprintf(stderr, "page size must be a power of two\n"); 1506 exit(1); 1507 } 1508 } else if (!strcmp(r, "g")) { 1509 gdbstub_port = atoi(argv[optind++]); 1510 } else if (!strcmp(r, "r")) { 1511 qemu_uname_release = argv[optind++]; 1512 } else 1513 #ifdef USE_CODE_COPY 1514 if (!strcmp(r, "no-code-copy")) { 1515 code_copy_enabled = 0; 1516 } else 1517 #endif 1518 { 1519 usage(); 1520 } 1521 } 1522 if (optind >= argc) 1523 usage(); 1524 filename = argv[optind]; 1525 1526 /* Zero out regs */ 1527 memset(regs, 0, sizeof(struct target_pt_regs)); 1528 1529 /* Zero out image_info */ 1530 memset(info, 0, sizeof(struct image_info)); 1531 1532 /* Scan interp_prefix dir for replacement files. */ 1533 init_paths(interp_prefix); 1534 1535 /* NOTE: we need to init the CPU at this stage to get 1536 qemu_host_page_size */ 1537 env = cpu_init(); 1538 global_env = env; 1539 1540 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) { 1541 printf("Error loading %s\n", filename); 1542 _exit(1); 1543 } 1544 1545 if (loglevel) { 1546 page_dump(logfile); 1547 1548 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk); 1549 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code); 1550 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code); 1551 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data); 1552 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data); 1553 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack); 1554 fprintf(logfile, "brk 0x%08lx\n" , info->brk); 1555 fprintf(logfile, "entry 0x%08lx\n" , info->entry); 1556 } 1557 1558 target_set_brk(info->brk); 1559 syscall_init(); 1560 signal_init(); 1561 1562 /* build Task State */ 1563 memset(ts, 0, sizeof(TaskState)); 1564 env->opaque = ts; 1565 ts->used = 1; 1566 ts->info = info; 1567 env->user_mode_only = 1; 1568 1569 #if defined(TARGET_I386) 1570 cpu_x86_set_cpl(env, 3); 1571 1572 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; 1573 env->hflags |= HF_PE_MASK; 1574 if (env->cpuid_features & CPUID_SSE) { 1575 env->cr[4] |= CR4_OSFXSR_MASK; 1576 env->hflags |= HF_OSFXSR_MASK; 1577 } 1578 1579 /* flags setup : we activate the IRQs by default as in user mode */ 1580 env->eflags |= IF_MASK; 1581 1582 /* linux register setup */ 1583 env->regs[R_EAX] = regs->eax; 1584 env->regs[R_EBX] = regs->ebx; 1585 env->regs[R_ECX] = regs->ecx; 1586 env->regs[R_EDX] = regs->edx; 1587 env->regs[R_ESI] = regs->esi; 1588 env->regs[R_EDI] = regs->edi; 1589 env->regs[R_EBP] = regs->ebp; 1590 env->regs[R_ESP] = regs->esp; 1591 env->eip = regs->eip; 1592 1593 /* linux interrupt setup */ 1594 env->idt.base = h2g(idt_table); 1595 env->idt.limit = sizeof(idt_table) - 1; 1596 set_idt(0, 0); 1597 set_idt(1, 0); 1598 set_idt(2, 0); 1599 set_idt(3, 3); 1600 set_idt(4, 3); 1601 set_idt(5, 3); 1602 set_idt(6, 0); 1603 set_idt(7, 0); 1604 set_idt(8, 0); 1605 set_idt(9, 0); 1606 set_idt(10, 0); 1607 set_idt(11, 0); 1608 set_idt(12, 0); 1609 set_idt(13, 0); 1610 set_idt(14, 0); 1611 set_idt(15, 0); 1612 set_idt(16, 0); 1613 set_idt(17, 0); 1614 set_idt(18, 0); 1615 set_idt(19, 0); 1616 set_idt(0x80, 3); 1617 1618 /* linux segment setup */ 1619 env->gdt.base = h2g(gdt_table); 1620 env->gdt.limit = sizeof(gdt_table) - 1; 1621 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, 1622 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 1623 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); 1624 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, 1625 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 1626 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); 1627 cpu_x86_load_seg(env, R_CS, __USER_CS); 1628 cpu_x86_load_seg(env, R_DS, __USER_DS); 1629 cpu_x86_load_seg(env, R_ES, __USER_DS); 1630 cpu_x86_load_seg(env, R_SS, __USER_DS); 1631 cpu_x86_load_seg(env, R_FS, __USER_DS); 1632 cpu_x86_load_seg(env, R_GS, __USER_DS); 1633 1634 #elif defined(TARGET_ARM) 1635 { 1636 int i; 1637 cpu_arm_set_model(env, ARM_CPUID_ARM1026); 1638 cpsr_write(env, regs->uregs[16], 0xffffffff); 1639 for(i = 0; i < 16; i++) { 1640 env->regs[i] = regs->uregs[i]; 1641 } 1642 ts->stack_base = info->start_stack; 1643 ts->heap_base = info->brk; 1644 /* This will be filled in on the first SYS_HEAPINFO call. */ 1645 ts->heap_limit = 0; 1646 } 1647 #elif defined(TARGET_SPARC) 1648 { 1649 int i; 1650 env->pc = regs->pc; 1651 env->npc = regs->npc; 1652 env->y = regs->y; 1653 for(i = 0; i < 8; i++) 1654 env->gregs[i] = regs->u_regs[i]; 1655 for(i = 0; i < 8; i++) 1656 env->regwptr[i] = regs->u_regs[i + 8]; 1657 } 1658 #elif defined(TARGET_PPC) 1659 { 1660 ppc_def_t *def; 1661 int i; 1662 1663 /* Choose and initialise CPU */ 1664 /* XXX: CPU model (or PVR) should be provided on command line */ 1665 // ppc_find_by_name("750gx", &def); 1666 // ppc_find_by_name("750fx", &def); 1667 // ppc_find_by_name("750p", &def); 1668 ppc_find_by_name("750", &def); 1669 // ppc_find_by_name("G3", &def); 1670 // ppc_find_by_name("604r", &def); 1671 // ppc_find_by_name("604e", &def); 1672 // ppc_find_by_name("604", &def); 1673 if (def == NULL) { 1674 cpu_abort(env, 1675 "Unable to find PowerPC CPU definition\n"); 1676 } 1677 cpu_ppc_register(env, def); 1678 1679 for (i = 0; i < 32; i++) { 1680 if (i != 12 && i != 6 && i != 13) 1681 env->msr[i] = (regs->msr >> i) & 1; 1682 } 1683 env->nip = regs->nip; 1684 for(i = 0; i < 32; i++) { 1685 env->gpr[i] = regs->gpr[i]; 1686 } 1687 } 1688 #elif defined(TARGET_MIPS) 1689 { 1690 int i; 1691 1692 for(i = 0; i < 32; i++) { 1693 env->gpr[i] = regs->regs[i]; 1694 } 1695 env->PC = regs->cp0_epc; 1696 #ifdef MIPS_USES_FPU 1697 env->CP0_Status |= (1 << CP0St_CU1); 1698 #endif 1699 } 1700 #elif defined(TARGET_SH4) 1701 { 1702 int i; 1703 1704 for(i = 0; i < 16; i++) { 1705 env->gregs[i] = regs->regs[i]; 1706 } 1707 env->pc = regs->pc; 1708 } 1709 #else 1710 #error unsupported target CPU 1711 #endif 1712 1713 if (gdbstub_port) { 1714 gdbserver_start (gdbstub_port); 1715 gdb_handlesig(env, 0); 1716 } 1717 cpu_loop(env); 1718 /* never exits */ 1719 return 0; 1720 } 1721