4 * Copyright (c) 2003 Fabrice Bellard
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.
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.
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.
29 #define DEBUG_LOGFILE "/tmp/qemu.log"
31 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
33 #if defined(__i386__) && !defined(CONFIG_STATIC)
34 /* Force usage of an ELF interpreter even if it is an ELF shared
36 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
39 /* for recent libc, we add these dummy symbols which are not declared
40 when generating a linked object (bug in ld ?) */
41 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
42 long __preinit_array_start[0];
43 long __preinit_array_end[0];
44 long __init_array_start[0];
45 long __init_array_end[0];
46 long __fini_array_start[0];
47 long __fini_array_end[0];
50 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
51 we allocate a bigger stack. Need a better solution, for example
52 by remapping the process stack directly at the right place */
53 unsigned long x86_stack_size = 512 * 1024;
55 void gemu_log(const char *fmt, ...)
60 vfprintf(stderr, fmt, ap);
64 void cpu_outb(CPUState *env, int addr, int val)
66 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
69 void cpu_outw(CPUState *env, int addr, int val)
71 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
74 void cpu_outl(CPUState *env, int addr, int val)
76 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
79 int cpu_inb(CPUState *env, int addr)
81 fprintf(stderr, "inb: port=0x%04x\n", addr);
85 int cpu_inw(CPUState *env, int addr)
87 fprintf(stderr, "inw: port=0x%04x\n", addr);
91 int cpu_inl(CPUState *env, int addr)
93 fprintf(stderr, "inl: port=0x%04x\n", addr);
97 int cpu_get_pic_interrupt(CPUState *env)
102 /* timers for rdtsc */
104 #if defined(__i386__)
106 int64_t cpu_get_real_ticks(void)
109 asm volatile ("rdtsc" : "=A" (val));
113 #elif defined(__x86_64__)
115 int64_t cpu_get_real_ticks(void)
119 asm volatile("rdtsc" : "=a" (low), "=d" (high));
128 static uint64_t emu_time;
130 int64_t cpu_get_real_ticks(void)
138 /***********************************************************/
139 /* CPUX86 core interface */
141 uint64_t cpu_get_tsc(CPUX86State *env)
143 return cpu_get_real_ticks();
146 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
150 e1 = (addr << 16) | (limit & 0xffff);
151 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
153 stl((uint8_t *)ptr, e1);
154 stl((uint8_t *)ptr + 4, e2);
157 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
158 unsigned long addr, unsigned int sel)
161 e1 = (addr & 0xffff) | (sel << 16);
162 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
163 stl((uint8_t *)ptr, e1);
164 stl((uint8_t *)ptr + 4, e2);
167 uint64_t gdt_table[6];
168 uint64_t idt_table[256];
170 /* only dpl matters as we do only user space emulation */
171 static void set_idt(int n, unsigned int dpl)
173 set_gate(idt_table + n, 0, dpl, 0, 0);
176 void cpu_loop(CPUX86State *env)
180 target_siginfo_t info;
183 trapnr = cpu_x86_exec(env);
187 env->regs[R_EAX] = do_syscall(env,
198 info.si_signo = SIGBUS;
200 info.si_code = TARGET_SI_KERNEL;
201 info._sifields._sigfault._addr = 0;
202 queue_signal(info.si_signo, &info);
205 if (env->eflags & VM_MASK) {
206 handle_vm86_fault(env);
208 info.si_signo = SIGSEGV;
210 info.si_code = TARGET_SI_KERNEL;
211 info._sifields._sigfault._addr = 0;
212 queue_signal(info.si_signo, &info);
216 info.si_signo = SIGSEGV;
218 if (!(env->error_code & 1))
219 info.si_code = TARGET_SEGV_MAPERR;
221 info.si_code = TARGET_SEGV_ACCERR;
222 info._sifields._sigfault._addr = env->cr[2];
223 queue_signal(info.si_signo, &info);
226 if (env->eflags & VM_MASK) {
227 handle_vm86_trap(env, trapnr);
229 /* division by zero */
230 info.si_signo = SIGFPE;
232 info.si_code = TARGET_FPE_INTDIV;
233 info._sifields._sigfault._addr = env->eip;
234 queue_signal(info.si_signo, &info);
239 if (env->eflags & VM_MASK) {
240 handle_vm86_trap(env, trapnr);
242 info.si_signo = SIGTRAP;
244 if (trapnr == EXCP01_SSTP) {
245 info.si_code = TARGET_TRAP_BRKPT;
246 info._sifields._sigfault._addr = env->eip;
248 info.si_code = TARGET_SI_KERNEL;
249 info._sifields._sigfault._addr = 0;
251 queue_signal(info.si_signo, &info);
256 if (env->eflags & VM_MASK) {
257 handle_vm86_trap(env, trapnr);
259 info.si_signo = SIGSEGV;
261 info.si_code = TARGET_SI_KERNEL;
262 info._sifields._sigfault._addr = 0;
263 queue_signal(info.si_signo, &info);
267 info.si_signo = SIGILL;
269 info.si_code = TARGET_ILL_ILLOPN;
270 info._sifields._sigfault._addr = env->eip;
271 queue_signal(info.si_signo, &info);
274 /* just indicate that signals should be handled asap */
277 pc = env->segs[R_CS].base + env->eip;
278 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
282 process_pending_signals(env);
289 /* XXX: find a better solution */
290 extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
292 static void arm_cache_flush(target_ulong start, target_ulong last)
294 target_ulong addr, last1;
300 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
303 tb_invalidate_page_range(addr, last1 + 1);
310 void cpu_loop(CPUARMState *env)
313 unsigned int n, insn;
314 target_siginfo_t info;
317 trapnr = cpu_arm_exec(env);
321 TaskState *ts = env->opaque;
324 /* we handle the FPU emulation here, as Linux */
325 /* we get the opcode */
326 opcode = ldl_raw((uint8_t *)env->regs[15]);
328 if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) {
329 info.si_signo = SIGILL;
331 info.si_code = TARGET_ILL_ILLOPN;
332 info._sifields._sigfault._addr = env->regs[15];
333 queue_signal(info.si_signo, &info);
343 insn = ldl((void *)(env->regs[15] - 4));
345 if (n == ARM_NR_cacheflush) {
346 arm_cache_flush(env->regs[0], env->regs[1]);
347 } else if (n >= ARM_SYSCALL_BASE) {
349 n -= ARM_SYSCALL_BASE;
350 env->regs[0] = do_syscall(env,
364 /* just indicate that signals should be handled asap */
368 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
370 cpu_arm_dump_state(env, stderr, 0);
373 process_pending_signals(env);
383 /* WARNING: dealing with register windows _is_ complicated */
384 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
386 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
387 /* wrap handling : if cwp is on the last window, then we use the
388 registers 'after' the end */
389 if (index < 8 && env->cwp == (NWINDOWS - 1))
390 index += (16 * NWINDOWS);
394 static inline void save_window_offset(CPUSPARCState *env, int offset)
396 unsigned int new_wim, i, cwp1;
399 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
400 ((1LL << NWINDOWS) - 1);
401 /* save the window */
402 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
403 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
404 #if defined(DEBUG_WIN)
405 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
408 for(i = 0; i < 16; i++)
409 stl_raw(sp_ptr + i, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
413 static void save_window(CPUSPARCState *env)
415 save_window_offset(env, 2);
418 static void restore_window(CPUSPARCState *env)
420 unsigned int new_wim, i, cwp1;
423 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
424 ((1LL << NWINDOWS) - 1);
426 /* restore the invalid window */
427 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
428 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
429 #if defined(DEBUG_WIN)
430 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
433 for(i = 0; i < 16; i++)
434 env->regbase[get_reg_index(env, cwp1, 8 + i)] = ldl_raw(sp_ptr + i);
438 static void flush_windows(CPUSPARCState *env)
441 #if defined(DEBUG_WIN)
442 printf("flush_windows:\n");
446 /* if restore would invoke restore_window(), then we can stop */
447 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
448 if (env->wim & (1 << cwp1))
450 #if defined(DEBUG_WIN)
451 printf("offset=%d: ", offset);
453 save_window_offset(env, offset);
458 void cpu_loop (CPUSPARCState *env)
463 trapnr = cpu_sparc_exec (env);
468 ret = do_syscall (env, env->gregs[1],
469 env->regwptr[0], env->regwptr[1],
470 env->regwptr[2], env->regwptr[3],
471 env->regwptr[4], env->regwptr[5]);
472 if ((unsigned int)ret >= (unsigned int)(-515)) {
473 env->psr |= PSR_CARRY;
476 env->psr &= ~PSR_CARRY;
478 env->regwptr[0] = ret;
479 /* next instruction */
481 env->npc = env->npc + 4;
483 case 0x83: /* flush windows */
484 // flush_windows(env);
485 /* next instruction */
487 env->npc = env->npc + 4;
489 case TT_WIN_OVF: /* window overflow */
492 case TT_WIN_UNF: /* window underflow */
496 printf ("Unhandled trap: 0x%x\n", trapnr);
497 cpu_sparc_dump_state(env, stderr, 0);
500 process_pending_signals (env);
508 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
514 uint32_t cpu_ppc_load_tbl (CPUState *env)
516 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
519 uint32_t cpu_ppc_load_tbu (CPUState *env)
521 return cpu_ppc_get_tb(env) >> 32;
524 static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
529 void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
531 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
534 void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
536 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
539 uint32_t cpu_ppc_load_decr (CPUState *env)
545 void cpu_ppc_store_decr (CPUState *env, uint32_t value)
550 void cpu_loop(CPUPPCState *env)
552 target_siginfo_t info;
557 trapnr = cpu_ppc_exec(env);
558 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
559 trapnr != EXCP_TRACE) {
561 cpu_ppc_dump_state(env, logfile, 0);
567 case EXCP_SYSCALL_USER:
570 * PPC ABI uses overflow flag in cr0 to signal an error
574 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
575 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
578 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
579 env->gpr[5], env->gpr[6], env->gpr[7],
581 if (ret > (uint32_t)(-515)) {
587 printf("syscall returned 0x%08x (%d)\n", ret, ret);
591 /* Should not happen ! */
592 fprintf(stderr, "RESET asked... Stop emulation\n");
594 fprintf(logfile, "RESET asked... Stop emulation\n");
596 case EXCP_MACHINE_CHECK:
597 fprintf(stderr, "Machine check exeption... Stop emulation\n");
599 fprintf(logfile, "RESET asked... Stop emulation\n");
600 info.si_signo = TARGET_SIGBUS;
602 info.si_code = TARGET_BUS_OBJERR;
603 info._sifields._sigfault._addr = env->nip - 4;
604 queue_signal(info.si_signo, &info);
606 fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]);
608 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
611 switch (env->error_code & 0xF) {
612 case EXCP_DSI_TRANSLATE:
613 info.si_signo = TARGET_SIGSEGV;
615 info.si_code = TARGET_SEGV_MAPERR;
617 case EXCP_DSI_NOTSUP:
618 case EXCP_DSI_EXTERNAL:
619 info.si_signo = TARGET_SIGILL;
621 info.si_code = TARGET_ILL_ILLADR;
624 info.si_signo = TARGET_SIGSEGV;
626 info.si_code = TARGET_SEGV_ACCERR;
629 info.si_signo = TARGET_SIGTRAP;
631 info.si_code = TARGET_TRAP_BRKPT;
634 /* Let's send a regular segfault... */
635 fprintf(stderr, "Invalid segfault errno (%02x)\n",
638 fprintf(logfile, "Invalid segfault errno (%02x)\n",
641 info.si_signo = TARGET_SIGSEGV;
643 info.si_code = TARGET_SEGV_MAPERR;
646 info._sifields._sigfault._addr = env->nip;
647 queue_signal(info.si_signo, &info);
650 fprintf(stderr, "Invalid instruction fetch\n");
652 fprintf(logfile, "Invalid instruction fetch\n");
653 switch (env->error_code) {
654 case EXCP_ISI_TRANSLATE:
655 info.si_signo = TARGET_SIGSEGV;
657 info.si_code = TARGET_SEGV_MAPERR;
660 info.si_signo = TARGET_SIGILL;
662 info.si_code = TARGET_ILL_ILLADR;
664 case EXCP_ISI_NOEXEC:
666 info.si_signo = TARGET_SIGSEGV;
668 info.si_code = TARGET_SEGV_ACCERR;
671 /* Let's send a regular segfault... */
672 fprintf(stderr, "Invalid segfault errno (%02x)\n",
675 fprintf(logfile, "Invalid segfault errno (%02x)\n",
678 info.si_signo = TARGET_SIGSEGV;
680 info.si_code = TARGET_SEGV_MAPERR;
683 info._sifields._sigfault._addr = env->nip - 4;
684 queue_signal(info.si_signo, &info);
687 /* Should not happen ! */
688 fprintf(stderr, "External interruption... Stop emulation\n");
690 fprintf(logfile, "External interruption... Stop emulation\n");
693 fprintf(stderr, "Invalid unaligned memory access\n");
695 fprintf(logfile, "Invalid unaligned memory access\n");
696 info.si_signo = TARGET_SIGBUS;
698 info.si_code = TARGET_BUS_ADRALN;
699 info._sifields._sigfault._addr = env->nip - 4;
700 queue_signal(info.si_signo, &info);
703 switch (env->error_code & ~0xF) {
705 fprintf(stderr, "Program exception\n");
707 fprintf(logfile, "Program exception\n");
709 env->fpscr[7] |= 0x8;
710 /* Finally, update FEX */
711 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
712 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
713 env->fpscr[7] |= 0x4;
714 info.si_signo = TARGET_SIGFPE;
716 switch (env->error_code & 0xF) {
718 info.si_code = TARGET_FPE_FLTOVF;
721 info.si_code = TARGET_FPE_FLTUND;
725 info.si_code = TARGET_FPE_FLTDIV;
728 info.si_code = TARGET_FPE_FLTRES;
731 info.si_code = TARGET_FPE_FLTINV;
740 info.si_code = TARGET_FPE_FLTSUB;
743 fprintf(stderr, "Unknown floating point exception "
744 "(%02x)\n", env->error_code);
746 fprintf(logfile, "Unknown floating point exception "
747 "(%02x)\n", env->error_code & 0xF);
752 fprintf(stderr, "Invalid instruction\n");
754 fprintf(logfile, "Invalid instruction\n");
755 info.si_signo = TARGET_SIGILL;
757 switch (env->error_code & 0xF) {
758 case EXCP_INVAL_INVAL:
759 info.si_code = TARGET_ILL_ILLOPC;
761 case EXCP_INVAL_LSWX:
762 info.si_code = TARGET_ILL_ILLOPN;
765 info.si_code = TARGET_ILL_PRVREG;
768 info.si_code = TARGET_ILL_COPROC;
771 fprintf(stderr, "Unknown invalid operation (%02x)\n",
772 env->error_code & 0xF);
774 fprintf(logfile, "Unknown invalid operation (%02x)\n",
775 env->error_code & 0xF);
777 info.si_code = TARGET_ILL_ILLADR;
782 fprintf(stderr, "Privilege violation\n");
784 fprintf(logfile, "Privilege violation\n");
785 info.si_signo = TARGET_SIGILL;
787 switch (env->error_code & 0xF) {
789 info.si_code = TARGET_ILL_PRVOPC;
792 info.si_code = TARGET_ILL_PRVREG;
795 fprintf(stderr, "Unknown privilege violation (%02x)\n",
796 env->error_code & 0xF);
797 info.si_code = TARGET_ILL_PRVOPC;
802 fprintf(stderr, "Tried to call a TRAP\n");
804 fprintf(logfile, "Tried to call a TRAP\n");
807 /* Should not happen ! */
808 fprintf(stderr, "Unknown program exception (%02x)\n",
811 fprintf(logfile, "Unknwon program exception (%02x)\n",
816 info._sifields._sigfault._addr = env->nip - 4;
817 queue_signal(info.si_signo, &info);
820 fprintf(stderr, "No floating point allowed\n");
822 fprintf(logfile, "No floating point allowed\n");
823 info.si_signo = TARGET_SIGILL;
825 info.si_code = TARGET_ILL_COPROC;
826 info._sifields._sigfault._addr = env->nip - 4;
827 queue_signal(info.si_signo, &info);
830 /* Should not happen ! */
831 fprintf(stderr, "Decrementer exception\n");
833 fprintf(logfile, "Decrementer exception\n");
835 case EXCP_RESA: /* Implementation specific */
836 /* Should not happen ! */
837 fprintf(stderr, "RESA exception should never happen !\n");
839 fprintf(logfile, "RESA exception should never happen !\n");
841 case EXCP_RESB: /* Implementation specific */
842 /* Should not happen ! */
843 fprintf(stderr, "RESB exception should never happen !\n");
845 fprintf(logfile, "RESB exception should never happen !\n");
848 /* Do nothing: we use this to trace execution */
851 /* Should not happen ! */
852 fprintf(stderr, "Floating point assist exception\n");
854 fprintf(logfile, "Floating point assist exception\n");
857 /* We reloaded the msr, just go on */
859 fprintf(stderr, "Tried to go into supervisor mode !\n");
861 fprintf(logfile, "Tried to go into supervisor mode !\n");
866 /* We stopped because of a jump... */
869 /* Should not occur: we always are in user mode */
870 fprintf(stderr, "Return from interrupt ?\n");
872 fprintf(logfile, "Return from interrupt ?\n");
875 /* Don't know why this should ever happen... */
880 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
883 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
884 "0x%02x - aborting\n", trapnr, env->error_code);
888 process_pending_signals(env);
895 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
896 "usage: qemu-" TARGET_ARCH " [-h] [-d opts] [-L path] [-s size] program [arguments...]\n"
897 "Linux CPU emulator (compiled for %s emulation)\n"
899 "-h print this help\n"
900 "-L path set the elf interpreter prefix (default=%s)\n"
901 "-s size set the stack size in bytes (default=%ld)\n"
905 "-no-code-copy disable code copy acceleration\n"
907 "-d options activate log (logfile=%s)\n"
908 "-p pagesize set the host page size to 'pagesize'\n",
916 /* XXX: currently only used for async signals (see signal.c) */
917 CPUState *global_env;
918 /* used only if single thread */
919 CPUState *cpu_single_env = NULL;
921 /* used to free thread contexts */
922 TaskState *first_task_state;
924 int main(int argc, char **argv)
926 const char *filename;
927 struct target_pt_regs regs1, *regs = ®s1;
928 struct image_info info1, *info = &info1;
929 TaskState ts1, *ts = &ts1;
938 cpu_set_log_filename(DEBUG_LOGFILE);
949 if (!strcmp(r, "-")) {
951 } else if (!strcmp(r, "d")) {
959 mask = cpu_str_to_log_mask(r);
961 printf("Log items (comma separated):\n");
962 for(item = cpu_log_items; item->mask != 0; item++) {
963 printf("%-10s %s\n", item->name, item->help);
968 } else if (!strcmp(r, "s")) {
970 x86_stack_size = strtol(r, (char **)&r, 0);
971 if (x86_stack_size <= 0)
974 x86_stack_size *= 1024 * 1024;
975 else if (*r == 'k' || *r == 'K')
976 x86_stack_size *= 1024;
977 } else if (!strcmp(r, "L")) {
978 interp_prefix = argv[optind++];
979 } else if (!strcmp(r, "p")) {
980 host_page_size = atoi(argv[optind++]);
981 if (host_page_size == 0 ||
982 (host_page_size & (host_page_size - 1)) != 0) {
983 fprintf(stderr, "page size must be a power of two\n");
988 if (!strcmp(r, "no-code-copy")) {
989 code_copy_enabled = 0;
998 filename = argv[optind];
1001 memset(regs, 0, sizeof(struct target_pt_regs));
1003 /* Zero out image_info */
1004 memset(info, 0, sizeof(struct image_info));
1006 /* Scan interp_prefix dir for replacement files. */
1007 init_paths(interp_prefix);
1009 /* NOTE: we need to init the CPU at this stage to get the
1013 if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
1014 printf("Error loading %s\n", filename);
1021 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1022 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1023 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1024 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1025 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1026 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1027 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1030 target_set_brk((char *)info->brk);
1036 /* build Task State */
1037 memset(ts, 0, sizeof(TaskState));
1040 env->user_mode_only = 1;
1042 #if defined(TARGET_I386)
1043 cpu_x86_set_cpl(env, 3);
1045 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1046 env->hflags |= HF_PE_MASK;
1048 /* flags setup : we activate the IRQs by default as in user mode */
1049 env->eflags |= IF_MASK;
1051 /* linux register setup */
1052 env->regs[R_EAX] = regs->eax;
1053 env->regs[R_EBX] = regs->ebx;
1054 env->regs[R_ECX] = regs->ecx;
1055 env->regs[R_EDX] = regs->edx;
1056 env->regs[R_ESI] = regs->esi;
1057 env->regs[R_EDI] = regs->edi;
1058 env->regs[R_EBP] = regs->ebp;
1059 env->regs[R_ESP] = regs->esp;
1060 env->eip = regs->eip;
1062 /* linux interrupt setup */
1063 env->idt.base = (void *)idt_table;
1064 env->idt.limit = sizeof(idt_table) - 1;
1087 /* linux segment setup */
1088 env->gdt.base = (void *)gdt_table;
1089 env->gdt.limit = sizeof(gdt_table) - 1;
1090 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1091 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1092 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1093 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1094 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1095 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1096 cpu_x86_load_seg(env, R_CS, __USER_CS);
1097 cpu_x86_load_seg(env, R_DS, __USER_DS);
1098 cpu_x86_load_seg(env, R_ES, __USER_DS);
1099 cpu_x86_load_seg(env, R_SS, __USER_DS);
1100 cpu_x86_load_seg(env, R_FS, __USER_DS);
1101 cpu_x86_load_seg(env, R_GS, __USER_DS);
1103 #elif defined(TARGET_ARM)
1106 for(i = 0; i < 16; i++) {
1107 env->regs[i] = regs->uregs[i];
1109 env->cpsr = regs->uregs[16];
1111 #elif defined(TARGET_SPARC)
1115 env->npc = regs->npc;
1117 for(i = 0; i < 8; i++)
1118 env->gregs[i] = regs->u_regs[i];
1119 for(i = 0; i < 8; i++)
1120 env->regwptr[i] = regs->u_regs[i + 8];
1122 #elif defined(TARGET_PPC)
1125 for (i = 0; i < 32; i++) {
1126 if (i != 12 && i != 6)
1127 env->msr[i] = (regs->msr >> i) & 1;
1129 env->nip = regs->nip;
1130 for(i = 0; i < 32; i++) {
1131 env->gpr[i] = regs->gpr[i];
1135 #error unsupported target CPU