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Commit | Line | Data |
---|---|---|
31e31b8a | 1 | /* |
93ac68bc | 2 | * qemu user main |
31e31b8a FB |
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> | |
04369ff2 | 23 | #include <string.h> |
31e31b8a | 24 | #include <errno.h> |
0ecfa993 | 25 | #include <unistd.h> |
31e31b8a | 26 | |
3ef693a0 | 27 | #include "qemu.h" |
31e31b8a | 28 | |
3ef693a0 | 29 | #define DEBUG_LOGFILE "/tmp/qemu.log" |
586314f2 | 30 | |
74cd30b8 | 31 | static const char *interp_prefix = CONFIG_QEMU_PREFIX; |
586314f2 | 32 | |
3a4739d6 | 33 | #if defined(__i386__) && !defined(CONFIG_STATIC) |
f801f97e FB |
34 | /* Force usage of an ELF interpreter even if it is an ELF shared |
35 | object ! */ | |
36 | const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2"; | |
4304763b | 37 | #endif |
74cd30b8 | 38 | |
93ac68bc | 39 | /* for recent libc, we add these dummy symbols which are not declared |
74cd30b8 FB |
40 | when generating a linked object (bug in ld ?) */ |
41 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) | |
c6981055 FB |
42 | long __preinit_array_start[0]; |
43 | long __preinit_array_end[0]; | |
74cd30b8 FB |
44 | long __init_array_start[0]; |
45 | long __init_array_end[0]; | |
46 | long __fini_array_start[0]; | |
47 | long __fini_array_end[0]; | |
48 | #endif | |
49 | ||
9de5e440 FB |
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; | |
31e31b8a FB |
54 | |
55 | void gemu_log(const char *fmt, ...) | |
56 | { | |
57 | va_list ap; | |
58 | ||
59 | va_start(ap, fmt); | |
60 | vfprintf(stderr, fmt, ap); | |
61 | va_end(ap); | |
62 | } | |
63 | ||
61190b14 | 64 | void cpu_outb(CPUState *env, int addr, int val) |
367e86e8 FB |
65 | { |
66 | fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val); | |
67 | } | |
68 | ||
61190b14 | 69 | void cpu_outw(CPUState *env, int addr, int val) |
367e86e8 FB |
70 | { |
71 | fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val); | |
72 | } | |
73 | ||
61190b14 | 74 | void cpu_outl(CPUState *env, int addr, int val) |
367e86e8 FB |
75 | { |
76 | fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); | |
77 | } | |
78 | ||
61190b14 | 79 | int cpu_inb(CPUState *env, int addr) |
367e86e8 FB |
80 | { |
81 | fprintf(stderr, "inb: port=0x%04x\n", addr); | |
82 | return 0; | |
83 | } | |
84 | ||
61190b14 | 85 | int cpu_inw(CPUState *env, int addr) |
367e86e8 FB |
86 | { |
87 | fprintf(stderr, "inw: port=0x%04x\n", addr); | |
88 | return 0; | |
89 | } | |
90 | ||
61190b14 | 91 | int cpu_inl(CPUState *env, int addr) |
367e86e8 FB |
92 | { |
93 | fprintf(stderr, "inl: port=0x%04x\n", addr); | |
94 | return 0; | |
95 | } | |
96 | ||
a541f297 | 97 | int cpu_get_pic_interrupt(CPUState *env) |
92ccca6a FB |
98 | { |
99 | return -1; | |
100 | } | |
101 | ||
28ab0e2e FB |
102 | /* timers for rdtsc */ |
103 | ||
104 | #if defined(__i386__) | |
105 | ||
106 | int64_t cpu_get_real_ticks(void) | |
107 | { | |
108 | int64_t val; | |
109 | asm volatile ("rdtsc" : "=A" (val)); | |
110 | return val; | |
111 | } | |
112 | ||
113 | #elif defined(__x86_64__) | |
114 | ||
115 | int64_t cpu_get_real_ticks(void) | |
116 | { | |
117 | uint32_t low,high; | |
118 | int64_t val; | |
119 | asm volatile("rdtsc" : "=a" (low), "=d" (high)); | |
120 | val = high; | |
121 | val <<= 32; | |
122 | val |= low; | |
123 | return val; | |
124 | } | |
125 | ||
126 | #else | |
127 | ||
128 | static uint64_t emu_time; | |
129 | ||
130 | int64_t cpu_get_real_ticks(void) | |
131 | { | |
132 | return emu_time++; | |
133 | } | |
134 | ||
135 | #endif | |
136 | ||
a541f297 FB |
137 | #ifdef TARGET_I386 |
138 | /***********************************************************/ | |
139 | /* CPUX86 core interface */ | |
140 | ||
28ab0e2e FB |
141 | uint64_t cpu_get_tsc(CPUX86State *env) |
142 | { | |
143 | return cpu_get_real_ticks(); | |
144 | } | |
145 | ||
f4beb510 FB |
146 | static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
147 | int flags) | |
6dbad63e | 148 | { |
f4beb510 | 149 | unsigned int e1, e2; |
6dbad63e FB |
150 | e1 = (addr << 16) | (limit & 0xffff); |
151 | e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); | |
f4beb510 FB |
152 | e2 |= flags; |
153 | stl((uint8_t *)ptr, e1); | |
154 | stl((uint8_t *)ptr + 4, e2); | |
155 | } | |
156 | ||
157 | static void set_gate(void *ptr, unsigned int type, unsigned int dpl, | |
158 | unsigned long addr, unsigned int sel) | |
159 | { | |
160 | unsigned int e1, e2; | |
161 | e1 = (addr & 0xffff) | (sel << 16); | |
162 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); | |
6dbad63e FB |
163 | stl((uint8_t *)ptr, e1); |
164 | stl((uint8_t *)ptr + 4, e2); | |
165 | } | |
166 | ||
167 | uint64_t gdt_table[6]; | |
f4beb510 FB |
168 | uint64_t idt_table[256]; |
169 | ||
170 | /* only dpl matters as we do only user space emulation */ | |
171 | static void set_idt(int n, unsigned int dpl) | |
172 | { | |
173 | set_gate(idt_table + n, 0, dpl, 0, 0); | |
174 | } | |
31e31b8a | 175 | |
89e957e7 | 176 | void cpu_loop(CPUX86State *env) |
1b6b029e | 177 | { |
bc8a22cc | 178 | int trapnr; |
9de5e440 FB |
179 | uint8_t *pc; |
180 | target_siginfo_t info; | |
851e67a1 | 181 | |
1b6b029e | 182 | for(;;) { |
bc8a22cc | 183 | trapnr = cpu_x86_exec(env); |
bc8a22cc | 184 | switch(trapnr) { |
f4beb510 FB |
185 | case 0x80: |
186 | /* linux syscall */ | |
187 | env->regs[R_EAX] = do_syscall(env, | |
188 | env->regs[R_EAX], | |
189 | env->regs[R_EBX], | |
190 | env->regs[R_ECX], | |
191 | env->regs[R_EDX], | |
192 | env->regs[R_ESI], | |
193 | env->regs[R_EDI], | |
194 | env->regs[R_EBP]); | |
195 | break; | |
196 | case EXCP0B_NOSEG: | |
197 | case EXCP0C_STACK: | |
198 | info.si_signo = SIGBUS; | |
199 | info.si_errno = 0; | |
200 | info.si_code = TARGET_SI_KERNEL; | |
201 | info._sifields._sigfault._addr = 0; | |
202 | queue_signal(info.si_signo, &info); | |
203 | break; | |
1b6b029e | 204 | case EXCP0D_GPF: |
851e67a1 | 205 | if (env->eflags & VM_MASK) { |
89e957e7 | 206 | handle_vm86_fault(env); |
1b6b029e | 207 | } else { |
f4beb510 FB |
208 | info.si_signo = SIGSEGV; |
209 | info.si_errno = 0; | |
210 | info.si_code = TARGET_SI_KERNEL; | |
211 | info._sifields._sigfault._addr = 0; | |
212 | queue_signal(info.si_signo, &info); | |
1b6b029e FB |
213 | } |
214 | break; | |
b689bc57 FB |
215 | case EXCP0E_PAGE: |
216 | info.si_signo = SIGSEGV; | |
217 | info.si_errno = 0; | |
218 | if (!(env->error_code & 1)) | |
219 | info.si_code = TARGET_SEGV_MAPERR; | |
220 | else | |
221 | info.si_code = TARGET_SEGV_ACCERR; | |
970a87a6 | 222 | info._sifields._sigfault._addr = env->cr[2]; |
b689bc57 FB |
223 | queue_signal(info.si_signo, &info); |
224 | break; | |
9de5e440 | 225 | case EXCP00_DIVZ: |
bc8a22cc | 226 | if (env->eflags & VM_MASK) { |
447db213 | 227 | handle_vm86_trap(env, trapnr); |
bc8a22cc FB |
228 | } else { |
229 | /* division by zero */ | |
230 | info.si_signo = SIGFPE; | |
231 | info.si_errno = 0; | |
232 | info.si_code = TARGET_FPE_INTDIV; | |
233 | info._sifields._sigfault._addr = env->eip; | |
234 | queue_signal(info.si_signo, &info); | |
235 | } | |
9de5e440 | 236 | break; |
447db213 FB |
237 | case EXCP01_SSTP: |
238 | case EXCP03_INT3: | |
239 | if (env->eflags & VM_MASK) { | |
240 | handle_vm86_trap(env, trapnr); | |
241 | } else { | |
242 | info.si_signo = SIGTRAP; | |
243 | info.si_errno = 0; | |
244 | if (trapnr == EXCP01_SSTP) { | |
245 | info.si_code = TARGET_TRAP_BRKPT; | |
246 | info._sifields._sigfault._addr = env->eip; | |
247 | } else { | |
248 | info.si_code = TARGET_SI_KERNEL; | |
249 | info._sifields._sigfault._addr = 0; | |
250 | } | |
251 | queue_signal(info.si_signo, &info); | |
252 | } | |
253 | break; | |
9de5e440 FB |
254 | case EXCP04_INTO: |
255 | case EXCP05_BOUND: | |
bc8a22cc | 256 | if (env->eflags & VM_MASK) { |
447db213 | 257 | handle_vm86_trap(env, trapnr); |
bc8a22cc FB |
258 | } else { |
259 | info.si_signo = SIGSEGV; | |
260 | info.si_errno = 0; | |
b689bc57 | 261 | info.si_code = TARGET_SI_KERNEL; |
bc8a22cc FB |
262 | info._sifields._sigfault._addr = 0; |
263 | queue_signal(info.si_signo, &info); | |
264 | } | |
9de5e440 FB |
265 | break; |
266 | case EXCP06_ILLOP: | |
267 | info.si_signo = SIGILL; | |
268 | info.si_errno = 0; | |
269 | info.si_code = TARGET_ILL_ILLOPN; | |
270 | info._sifields._sigfault._addr = env->eip; | |
271 | queue_signal(info.si_signo, &info); | |
272 | break; | |
273 | case EXCP_INTERRUPT: | |
274 | /* just indicate that signals should be handled asap */ | |
275 | break; | |
1b6b029e | 276 | default: |
970a87a6 | 277 | pc = env->segs[R_CS].base + env->eip; |
bc8a22cc FB |
278 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
279 | (long)pc, trapnr); | |
1b6b029e FB |
280 | abort(); |
281 | } | |
66fb9763 | 282 | process_pending_signals(env); |
1b6b029e FB |
283 | } |
284 | } | |
b346ff46 FB |
285 | #endif |
286 | ||
287 | #ifdef TARGET_ARM | |
288 | ||
6f1f31c0 FB |
289 | /* XXX: find a better solution */ |
290 | extern void tb_invalidate_page_range(target_ulong start, target_ulong end); | |
291 | ||
292 | static void arm_cache_flush(target_ulong start, target_ulong last) | |
293 | { | |
294 | target_ulong addr, last1; | |
295 | ||
296 | if (last < start) | |
297 | return; | |
298 | addr = start; | |
299 | for(;;) { | |
300 | last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1; | |
301 | if (last1 > last) | |
302 | last1 = last; | |
303 | tb_invalidate_page_range(addr, last1 + 1); | |
304 | if (last1 == last) | |
305 | break; | |
306 | addr = last1 + 1; | |
307 | } | |
308 | } | |
309 | ||
b346ff46 FB |
310 | void cpu_loop(CPUARMState *env) |
311 | { | |
312 | int trapnr; | |
313 | unsigned int n, insn; | |
314 | target_siginfo_t info; | |
315 | ||
316 | for(;;) { | |
317 | trapnr = cpu_arm_exec(env); | |
318 | switch(trapnr) { | |
319 | case EXCP_UDEF: | |
c6981055 FB |
320 | { |
321 | TaskState *ts = env->opaque; | |
322 | uint32_t opcode; | |
323 | ||
324 | /* we handle the FPU emulation here, as Linux */ | |
325 | /* we get the opcode */ | |
326 | opcode = ldl_raw((uint8_t *)env->regs[15]); | |
327 | ||
328 | if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) { | |
329 | info.si_signo = SIGILL; | |
330 | info.si_errno = 0; | |
331 | info.si_code = TARGET_ILL_ILLOPN; | |
332 | info._sifields._sigfault._addr = env->regs[15]; | |
333 | queue_signal(info.si_signo, &info); | |
334 | } else { | |
335 | /* increment PC */ | |
336 | env->regs[15] += 4; | |
337 | } | |
338 | } | |
b346ff46 FB |
339 | break; |
340 | case EXCP_SWI: | |
341 | { | |
342 | /* system call */ | |
343 | insn = ldl((void *)(env->regs[15] - 4)); | |
344 | n = insn & 0xffffff; | |
6f1f31c0 FB |
345 | if (n == ARM_NR_cacheflush) { |
346 | arm_cache_flush(env->regs[0], env->regs[1]); | |
347 | } else if (n >= ARM_SYSCALL_BASE) { | |
b346ff46 FB |
348 | /* linux syscall */ |
349 | n -= ARM_SYSCALL_BASE; | |
350 | env->regs[0] = do_syscall(env, | |
351 | n, | |
352 | env->regs[0], | |
353 | env->regs[1], | |
354 | env->regs[2], | |
355 | env->regs[3], | |
356 | env->regs[4], | |
357 | 0); | |
358 | } else { | |
359 | goto error; | |
360 | } | |
361 | } | |
362 | break; | |
43fff238 FB |
363 | case EXCP_INTERRUPT: |
364 | /* just indicate that signals should be handled asap */ | |
365 | break; | |
b346ff46 FB |
366 | default: |
367 | error: | |
368 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", | |
369 | trapnr); | |
370 | cpu_arm_dump_state(env, stderr, 0); | |
371 | abort(); | |
372 | } | |
373 | process_pending_signals(env); | |
374 | } | |
375 | } | |
376 | ||
377 | #endif | |
1b6b029e | 378 | |
93ac68bc FB |
379 | #ifdef TARGET_SPARC |
380 | ||
060366c5 FB |
381 | //#define DEBUG_WIN |
382 | ||
383 | /* WARNING: dealing with register windows _is_ complicated */ | |
384 | static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) | |
385 | { | |
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); | |
391 | return index; | |
392 | } | |
393 | ||
394 | static inline void save_window_offset(CPUSPARCState *env, int offset) | |
395 | { | |
396 | unsigned int new_wim, i, cwp1; | |
397 | uint32_t *sp_ptr; | |
398 | ||
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", | |
406 | (int)sp_ptr, cwp1); | |
407 | #endif | |
408 | for(i = 0; i < 16; i++) | |
409 | stl_raw(sp_ptr + i, env->regbase[get_reg_index(env, cwp1, 8 + i)]); | |
410 | env->wim = new_wim; | |
411 | } | |
412 | ||
413 | static void save_window(CPUSPARCState *env) | |
414 | { | |
415 | save_window_offset(env, 2); | |
416 | } | |
417 | ||
418 | static void restore_window(CPUSPARCState *env) | |
419 | { | |
420 | unsigned int new_wim, i, cwp1; | |
421 | uint32_t *sp_ptr; | |
422 | ||
423 | new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) & | |
424 | ((1LL << NWINDOWS) - 1); | |
425 | ||
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", | |
431 | (int)sp_ptr, cwp1); | |
432 | #endif | |
433 | for(i = 0; i < 16; i++) | |
434 | env->regbase[get_reg_index(env, cwp1, 8 + i)] = ldl_raw(sp_ptr + i); | |
435 | env->wim = new_wim; | |
436 | } | |
437 | ||
438 | static void flush_windows(CPUSPARCState *env) | |
439 | { | |
440 | int offset, cwp1; | |
441 | #if defined(DEBUG_WIN) | |
442 | printf("flush_windows:\n"); | |
443 | #endif | |
444 | offset = 2; | |
445 | for(;;) { | |
446 | /* if restore would invoke restore_window(), then we can stop */ | |
447 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
448 | if (env->wim & (1 << cwp1)) | |
449 | break; | |
450 | #if defined(DEBUG_WIN) | |
451 | printf("offset=%d: ", offset); | |
452 | #endif | |
453 | save_window_offset(env, offset); | |
454 | offset++; | |
455 | } | |
456 | } | |
457 | ||
93ac68bc FB |
458 | void cpu_loop (CPUSPARCState *env) |
459 | { | |
060366c5 FB |
460 | int trapnr, ret; |
461 | ||
462 | while (1) { | |
463 | trapnr = cpu_sparc_exec (env); | |
464 | ||
465 | switch (trapnr) { | |
466 | case 0x88: | |
467 | case 0x90: | |
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; | |
474 | ret = -ret; | |
475 | } else { | |
476 | env->psr &= ~PSR_CARRY; | |
477 | } | |
478 | env->regwptr[0] = ret; | |
479 | /* next instruction */ | |
480 | env->pc = env->npc; | |
481 | env->npc = env->npc + 4; | |
482 | break; | |
483 | case 0x83: /* flush windows */ | |
484 | // flush_windows(env); | |
485 | /* next instruction */ | |
486 | env->pc = env->npc; | |
487 | env->npc = env->npc + 4; | |
488 | break; | |
489 | case TT_WIN_OVF: /* window overflow */ | |
490 | save_window(env); | |
491 | break; | |
492 | case TT_WIN_UNF: /* window underflow */ | |
493 | restore_window(env); | |
494 | break; | |
495 | default: | |
496 | printf ("Unhandled trap: 0x%x\n", trapnr); | |
497 | cpu_sparc_dump_state(env, stderr, 0); | |
498 | exit (1); | |
499 | } | |
500 | process_pending_signals (env); | |
501 | } | |
93ac68bc FB |
502 | } |
503 | ||
504 | #endif | |
505 | ||
67867308 | 506 | #ifdef TARGET_PPC |
9fddaa0c FB |
507 | |
508 | static inline uint64_t cpu_ppc_get_tb (CPUState *env) | |
509 | { | |
510 | /* TO FIX */ | |
511 | return 0; | |
512 | } | |
513 | ||
514 | uint32_t cpu_ppc_load_tbl (CPUState *env) | |
515 | { | |
516 | return cpu_ppc_get_tb(env) & 0xFFFFFFFF; | |
517 | } | |
518 | ||
519 | uint32_t cpu_ppc_load_tbu (CPUState *env) | |
520 | { | |
521 | return cpu_ppc_get_tb(env) >> 32; | |
522 | } | |
523 | ||
524 | static void cpu_ppc_store_tb (CPUState *env, uint64_t value) | |
525 | { | |
526 | /* TO FIX */ | |
527 | } | |
528 | ||
529 | void cpu_ppc_store_tbu (CPUState *env, uint32_t value) | |
530 | { | |
531 | cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env)); | |
532 | } | |
533 | ||
534 | void cpu_ppc_store_tbl (CPUState *env, uint32_t value) | |
535 | { | |
536 | cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value); | |
537 | } | |
538 | ||
539 | uint32_t cpu_ppc_load_decr (CPUState *env) | |
540 | { | |
541 | /* TO FIX */ | |
542 | return -1; | |
543 | } | |
544 | ||
545 | void cpu_ppc_store_decr (CPUState *env, uint32_t value) | |
546 | { | |
547 | /* TO FIX */ | |
548 | } | |
549 | ||
67867308 FB |
550 | void cpu_loop(CPUPPCState *env) |
551 | { | |
67867308 | 552 | target_siginfo_t info; |
61190b14 FB |
553 | int trapnr; |
554 | uint32_t ret; | |
67867308 FB |
555 | |
556 | for(;;) { | |
557 | trapnr = cpu_ppc_exec(env); | |
61190b14 FB |
558 | if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH && |
559 | trapnr != EXCP_TRACE) { | |
560 | if (loglevel > 0) { | |
561 | cpu_ppc_dump_state(env, logfile, 0); | |
562 | } | |
563 | } | |
67867308 FB |
564 | switch(trapnr) { |
565 | case EXCP_NONE: | |
67867308 | 566 | break; |
61190b14 FB |
567 | case EXCP_SYSCALL_USER: |
568 | /* system call */ | |
569 | /* WARNING: | |
570 | * PPC ABI uses overflow flag in cr0 to signal an error | |
571 | * in syscalls. | |
572 | */ | |
67867308 | 573 | #if 0 |
61190b14 FB |
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]); | |
67867308 | 576 | #endif |
61190b14 FB |
577 | env->crf[0] &= ~0x1; |
578 | ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], | |
579 | env->gpr[5], env->gpr[6], env->gpr[7], | |
580 | env->gpr[8]); | |
581 | if (ret > (uint32_t)(-515)) { | |
582 | env->crf[0] |= 0x1; | |
583 | ret = -ret; | |
584 | } | |
585 | env->gpr[3] = ret; | |
586 | #if 0 | |
587 | printf("syscall returned 0x%08x (%d)\n", ret, ret); | |
588 | #endif | |
589 | break; | |
590 | case EXCP_RESET: | |
591 | /* Should not happen ! */ | |
592 | fprintf(stderr, "RESET asked... Stop emulation\n"); | |
593 | if (loglevel) | |
594 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
67867308 | 595 | abort(); |
61190b14 FB |
596 | case EXCP_MACHINE_CHECK: |
597 | fprintf(stderr, "Machine check exeption... Stop emulation\n"); | |
598 | if (loglevel) | |
599 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
600 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 601 | info.si_errno = 0; |
61190b14 FB |
602 | info.si_code = TARGET_BUS_OBJERR; |
603 | info._sifields._sigfault._addr = env->nip - 4; | |
604 | queue_signal(info.si_signo, &info); | |
605 | case EXCP_DSI: | |
606 | fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]); | |
607 | if (loglevel) { | |
608 | fprintf(logfile, "Invalid data memory access: 0x%08x\n", | |
609 | env->spr[DAR]); | |
610 | } | |
611 | switch (env->error_code & 0xF) { | |
612 | case EXCP_DSI_TRANSLATE: | |
613 | info.si_signo = TARGET_SIGSEGV; | |
614 | info.si_errno = 0; | |
615 | info.si_code = TARGET_SEGV_MAPERR; | |
616 | break; | |
617 | case EXCP_DSI_NOTSUP: | |
618 | case EXCP_DSI_EXTERNAL: | |
619 | info.si_signo = TARGET_SIGILL; | |
620 | info.si_errno = 0; | |
621 | info.si_code = TARGET_ILL_ILLADR; | |
622 | break; | |
623 | case EXCP_DSI_PROT: | |
624 | info.si_signo = TARGET_SIGSEGV; | |
625 | info.si_errno = 0; | |
626 | info.si_code = TARGET_SEGV_ACCERR; | |
627 | break; | |
628 | case EXCP_DSI_DABR: | |
629 | info.si_signo = TARGET_SIGTRAP; | |
630 | info.si_errno = 0; | |
631 | info.si_code = TARGET_TRAP_BRKPT; | |
632 | break; | |
633 | default: | |
634 | /* Let's send a regular segfault... */ | |
635 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
636 | env->error_code); | |
637 | if (loglevel) { | |
638 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
639 | env->error_code); | |
640 | } | |
641 | info.si_signo = TARGET_SIGSEGV; | |
642 | info.si_errno = 0; | |
643 | info.si_code = TARGET_SEGV_MAPERR; | |
644 | break; | |
645 | } | |
67867308 FB |
646 | info._sifields._sigfault._addr = env->nip; |
647 | queue_signal(info.si_signo, &info); | |
648 | break; | |
61190b14 | 649 | case EXCP_ISI: |
67867308 | 650 | fprintf(stderr, "Invalid instruction fetch\n"); |
61190b14 FB |
651 | if (loglevel) |
652 | fprintf(logfile, "Invalid instruction fetch\n"); | |
653 | switch (env->error_code) { | |
654 | case EXCP_ISI_TRANSLATE: | |
655 | info.si_signo = TARGET_SIGSEGV; | |
67867308 | 656 | info.si_errno = 0; |
61190b14 FB |
657 | info.si_code = TARGET_SEGV_MAPERR; |
658 | break; | |
659 | case EXCP_ISI_GUARD: | |
660 | info.si_signo = TARGET_SIGILL; | |
661 | info.si_errno = 0; | |
662 | info.si_code = TARGET_ILL_ILLADR; | |
663 | break; | |
664 | case EXCP_ISI_NOEXEC: | |
665 | case EXCP_ISI_PROT: | |
666 | info.si_signo = TARGET_SIGSEGV; | |
667 | info.si_errno = 0; | |
668 | info.si_code = TARGET_SEGV_ACCERR; | |
669 | break; | |
670 | default: | |
671 | /* Let's send a regular segfault... */ | |
672 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
673 | env->error_code); | |
674 | if (loglevel) { | |
675 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
676 | env->error_code); | |
677 | } | |
678 | info.si_signo = TARGET_SIGSEGV; | |
679 | info.si_errno = 0; | |
680 | info.si_code = TARGET_SEGV_MAPERR; | |
681 | break; | |
682 | } | |
683 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
684 | queue_signal(info.si_signo, &info); |
685 | break; | |
61190b14 FB |
686 | case EXCP_EXTERNAL: |
687 | /* Should not happen ! */ | |
688 | fprintf(stderr, "External interruption... Stop emulation\n"); | |
689 | if (loglevel) | |
690 | fprintf(logfile, "External interruption... Stop emulation\n"); | |
67867308 | 691 | abort(); |
61190b14 FB |
692 | case EXCP_ALIGN: |
693 | fprintf(stderr, "Invalid unaligned memory access\n"); | |
694 | if (loglevel) | |
695 | fprintf(logfile, "Invalid unaligned memory access\n"); | |
696 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 697 | info.si_errno = 0; |
61190b14 FB |
698 | info.si_code = TARGET_BUS_ADRALN; |
699 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
700 | queue_signal(info.si_signo, &info); |
701 | break; | |
61190b14 FB |
702 | case EXCP_PROGRAM: |
703 | switch (env->error_code & ~0xF) { | |
704 | case EXCP_FP: | |
705 | fprintf(stderr, "Program exception\n"); | |
706 | if (loglevel) | |
707 | fprintf(logfile, "Program exception\n"); | |
708 | /* Set FX */ | |
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; | |
715 | info.si_errno = 0; | |
716 | switch (env->error_code & 0xF) { | |
717 | case EXCP_FP_OX: | |
718 | info.si_code = TARGET_FPE_FLTOVF; | |
719 | break; | |
720 | case EXCP_FP_UX: | |
721 | info.si_code = TARGET_FPE_FLTUND; | |
722 | break; | |
723 | case EXCP_FP_ZX: | |
724 | case EXCP_FP_VXZDZ: | |
725 | info.si_code = TARGET_FPE_FLTDIV; | |
726 | break; | |
727 | case EXCP_FP_XX: | |
728 | info.si_code = TARGET_FPE_FLTRES; | |
729 | break; | |
730 | case EXCP_FP_VXSOFT: | |
731 | info.si_code = TARGET_FPE_FLTINV; | |
732 | break; | |
733 | case EXCP_FP_VXNAN: | |
734 | case EXCP_FP_VXISI: | |
735 | case EXCP_FP_VXIDI: | |
736 | case EXCP_FP_VXIMZ: | |
737 | case EXCP_FP_VXVC: | |
738 | case EXCP_FP_VXSQRT: | |
739 | case EXCP_FP_VXCVI: | |
740 | info.si_code = TARGET_FPE_FLTSUB; | |
741 | break; | |
742 | default: | |
743 | fprintf(stderr, "Unknown floating point exception " | |
744 | "(%02x)\n", env->error_code); | |
745 | if (loglevel) { | |
746 | fprintf(logfile, "Unknown floating point exception " | |
747 | "(%02x)\n", env->error_code & 0xF); | |
748 | } | |
749 | } | |
750 | break; | |
67867308 | 751 | case EXCP_INVAL: |
61190b14 FB |
752 | fprintf(stderr, "Invalid instruction\n"); |
753 | if (loglevel) | |
754 | fprintf(logfile, "Invalid instruction\n"); | |
755 | info.si_signo = TARGET_SIGILL; | |
756 | info.si_errno = 0; | |
757 | switch (env->error_code & 0xF) { | |
758 | case EXCP_INVAL_INVAL: | |
759 | info.si_code = TARGET_ILL_ILLOPC; | |
760 | break; | |
761 | case EXCP_INVAL_LSWX: | |
67867308 | 762 | info.si_code = TARGET_ILL_ILLOPN; |
61190b14 FB |
763 | break; |
764 | case EXCP_INVAL_SPR: | |
765 | info.si_code = TARGET_ILL_PRVREG; | |
766 | break; | |
767 | case EXCP_INVAL_FP: | |
768 | info.si_code = TARGET_ILL_COPROC; | |
769 | break; | |
770 | default: | |
771 | fprintf(stderr, "Unknown invalid operation (%02x)\n", | |
772 | env->error_code & 0xF); | |
773 | if (loglevel) { | |
774 | fprintf(logfile, "Unknown invalid operation (%02x)\n", | |
775 | env->error_code & 0xF); | |
776 | } | |
777 | info.si_code = TARGET_ILL_ILLADR; | |
778 | break; | |
779 | } | |
780 | break; | |
781 | case EXCP_PRIV: | |
782 | fprintf(stderr, "Privilege violation\n"); | |
783 | if (loglevel) | |
784 | fprintf(logfile, "Privilege violation\n"); | |
785 | info.si_signo = TARGET_SIGILL; | |
786 | info.si_errno = 0; | |
787 | switch (env->error_code & 0xF) { | |
788 | case EXCP_PRIV_OPC: | |
789 | info.si_code = TARGET_ILL_PRVOPC; | |
790 | break; | |
791 | case EXCP_PRIV_REG: | |
792 | info.si_code = TARGET_ILL_PRVREG; | |
793 | break; | |
794 | default: | |
795 | fprintf(stderr, "Unknown privilege violation (%02x)\n", | |
796 | env->error_code & 0xF); | |
797 | info.si_code = TARGET_ILL_PRVOPC; | |
798 | break; | |
799 | } | |
800 | break; | |
801 | case EXCP_TRAP: | |
802 | fprintf(stderr, "Tried to call a TRAP\n"); | |
803 | if (loglevel) | |
804 | fprintf(logfile, "Tried to call a TRAP\n"); | |
805 | abort(); | |
806 | default: | |
807 | /* Should not happen ! */ | |
808 | fprintf(stderr, "Unknown program exception (%02x)\n", | |
809 | env->error_code); | |
810 | if (loglevel) { | |
811 | fprintf(logfile, "Unknwon program exception (%02x)\n", | |
812 | env->error_code); | |
813 | } | |
814 | abort(); | |
815 | } | |
816 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
817 | queue_signal(info.si_signo, &info); |
818 | break; | |
61190b14 FB |
819 | case EXCP_NO_FP: |
820 | fprintf(stderr, "No floating point allowed\n"); | |
821 | if (loglevel) | |
822 | fprintf(logfile, "No floating point allowed\n"); | |
823 | info.si_signo = TARGET_SIGILL; | |
67867308 | 824 | info.si_errno = 0; |
61190b14 FB |
825 | info.si_code = TARGET_ILL_COPROC; |
826 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
827 | queue_signal(info.si_signo, &info); |
828 | break; | |
61190b14 FB |
829 | case EXCP_DECR: |
830 | /* Should not happen ! */ | |
831 | fprintf(stderr, "Decrementer exception\n"); | |
832 | if (loglevel) | |
833 | fprintf(logfile, "Decrementer exception\n"); | |
834 | abort(); | |
67867308 | 835 | case EXCP_RESA: /* Implementation specific */ |
61190b14 FB |
836 | /* Should not happen ! */ |
837 | fprintf(stderr, "RESA exception should never happen !\n"); | |
838 | if (loglevel) | |
839 | fprintf(logfile, "RESA exception should never happen !\n"); | |
840 | abort(); | |
67867308 | 841 | case EXCP_RESB: /* Implementation specific */ |
61190b14 FB |
842 | /* Should not happen ! */ |
843 | fprintf(stderr, "RESB exception should never happen !\n"); | |
844 | if (loglevel) | |
845 | fprintf(logfile, "RESB exception should never happen !\n"); | |
67867308 | 846 | abort(); |
61190b14 FB |
847 | case EXCP_TRACE: |
848 | /* Do nothing: we use this to trace execution */ | |
67867308 | 849 | break; |
61190b14 FB |
850 | case EXCP_FP_ASSIST: |
851 | /* Should not happen ! */ | |
852 | fprintf(stderr, "Floating point assist exception\n"); | |
853 | if (loglevel) | |
854 | fprintf(logfile, "Floating point assist exception\n"); | |
855 | abort(); | |
856 | case EXCP_MTMSR: | |
857 | /* We reloaded the msr, just go on */ | |
9fddaa0c | 858 | if (msr_pr == 0) { |
61190b14 FB |
859 | fprintf(stderr, "Tried to go into supervisor mode !\n"); |
860 | if (loglevel) | |
861 | fprintf(logfile, "Tried to go into supervisor mode !\n"); | |
862 | abort(); | |
67867308 | 863 | } |
61190b14 FB |
864 | break; |
865 | case EXCP_BRANCH: | |
866 | /* We stopped because of a jump... */ | |
867 | break; | |
868 | case EXCP_RFI: | |
869 | /* Should not occur: we always are in user mode */ | |
870 | fprintf(stderr, "Return from interrupt ?\n"); | |
871 | if (loglevel) | |
872 | fprintf(logfile, "Return from interrupt ?\n"); | |
873 | abort(); | |
874 | case EXCP_INTERRUPT: | |
875 | /* Don't know why this should ever happen... */ | |
876 | break; | |
a541f297 FB |
877 | case EXCP_DEBUG: |
878 | break; | |
67867308 | 879 | default: |
67867308 FB |
880 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
881 | trapnr); | |
61190b14 FB |
882 | if (loglevel) { |
883 | fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - " | |
884 | "0x%02x - aborting\n", trapnr, env->error_code); | |
885 | } | |
67867308 FB |
886 | abort(); |
887 | } | |
888 | process_pending_signals(env); | |
889 | } | |
890 | } | |
891 | #endif | |
892 | ||
31e31b8a FB |
893 | void usage(void) |
894 | { | |
4606bb3f | 895 | printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n" |
6f1f31c0 | 896 | "usage: qemu-" TARGET_ARCH " [-h] [-d opts] [-L path] [-s size] program [arguments...]\n" |
b346ff46 | 897 | "Linux CPU emulator (compiled for %s emulation)\n" |
d691f669 | 898 | "\n" |
54936004 | 899 | "-h print this help\n" |
b346ff46 FB |
900 | "-L path set the elf interpreter prefix (default=%s)\n" |
901 | "-s size set the stack size in bytes (default=%ld)\n" | |
54936004 FB |
902 | "\n" |
903 | "debug options:\n" | |
c6981055 FB |
904 | #ifdef USE_CODE_COPY |
905 | "-no-code-copy disable code copy acceleration\n" | |
906 | #endif | |
6f1f31c0 | 907 | "-d options activate log (logfile=%s)\n" |
54936004 | 908 | "-p pagesize set the host page size to 'pagesize'\n", |
b346ff46 | 909 | TARGET_ARCH, |
d691f669 | 910 | interp_prefix, |
54936004 FB |
911 | x86_stack_size, |
912 | DEBUG_LOGFILE); | |
74cd30b8 | 913 | _exit(1); |
31e31b8a FB |
914 | } |
915 | ||
9de5e440 | 916 | /* XXX: currently only used for async signals (see signal.c) */ |
b346ff46 | 917 | CPUState *global_env; |
59faf6d6 FB |
918 | /* used only if single thread */ |
919 | CPUState *cpu_single_env = NULL; | |
920 | ||
851e67a1 FB |
921 | /* used to free thread contexts */ |
922 | TaskState *first_task_state; | |
9de5e440 | 923 | |
31e31b8a FB |
924 | int main(int argc, char **argv) |
925 | { | |
926 | const char *filename; | |
01ffc75b | 927 | struct target_pt_regs regs1, *regs = ®s1; |
31e31b8a | 928 | struct image_info info1, *info = &info1; |
851e67a1 | 929 | TaskState ts1, *ts = &ts1; |
b346ff46 | 930 | CPUState *env; |
586314f2 | 931 | int optind; |
d691f669 FB |
932 | const char *r; |
933 | ||
31e31b8a FB |
934 | if (argc <= 1) |
935 | usage(); | |
f801f97e | 936 | |
cc38b844 FB |
937 | /* init debug */ |
938 | cpu_set_log_filename(DEBUG_LOGFILE); | |
939 | ||
586314f2 | 940 | optind = 1; |
d691f669 FB |
941 | for(;;) { |
942 | if (optind >= argc) | |
943 | break; | |
944 | r = argv[optind]; | |
945 | if (r[0] != '-') | |
946 | break; | |
586314f2 | 947 | optind++; |
d691f669 FB |
948 | r++; |
949 | if (!strcmp(r, "-")) { | |
950 | break; | |
951 | } else if (!strcmp(r, "d")) { | |
e19e89a5 FB |
952 | int mask; |
953 | CPULogItem *item; | |
6f1f31c0 FB |
954 | |
955 | if (optind >= argc) | |
956 | break; | |
e19e89a5 | 957 | |
6f1f31c0 FB |
958 | r = argv[optind++]; |
959 | mask = cpu_str_to_log_mask(r); | |
e19e89a5 FB |
960 | if (!mask) { |
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); | |
964 | } | |
965 | exit(1); | |
966 | } | |
967 | cpu_set_log(mask); | |
d691f669 FB |
968 | } else if (!strcmp(r, "s")) { |
969 | r = argv[optind++]; | |
970 | x86_stack_size = strtol(r, (char **)&r, 0); | |
971 | if (x86_stack_size <= 0) | |
972 | usage(); | |
973 | if (*r == 'M') | |
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++]; | |
54936004 FB |
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"); | |
984 | exit(1); | |
985 | } | |
c6981055 FB |
986 | } else |
987 | #ifdef USE_CODE_COPY | |
988 | if (!strcmp(r, "no-code-copy")) { | |
989 | code_copy_enabled = 0; | |
990 | } else | |
991 | #endif | |
992 | { | |
d691f669 FB |
993 | usage(); |
994 | } | |
586314f2 | 995 | } |
d691f669 FB |
996 | if (optind >= argc) |
997 | usage(); | |
586314f2 FB |
998 | filename = argv[optind]; |
999 | ||
31e31b8a | 1000 | /* Zero out regs */ |
01ffc75b | 1001 | memset(regs, 0, sizeof(struct target_pt_regs)); |
31e31b8a FB |
1002 | |
1003 | /* Zero out image_info */ | |
1004 | memset(info, 0, sizeof(struct image_info)); | |
1005 | ||
74cd30b8 FB |
1006 | /* Scan interp_prefix dir for replacement files. */ |
1007 | init_paths(interp_prefix); | |
1008 | ||
54936004 FB |
1009 | /* NOTE: we need to init the CPU at this stage to get the |
1010 | host_page_size */ | |
b346ff46 | 1011 | env = cpu_init(); |
92ccca6a | 1012 | |
74cd30b8 | 1013 | if (elf_exec(filename, argv+optind, environ, regs, info) != 0) { |
31e31b8a | 1014 | printf("Error loading %s\n", filename); |
74cd30b8 | 1015 | _exit(1); |
31e31b8a FB |
1016 | } |
1017 | ||
4b74fe1f | 1018 | if (loglevel) { |
54936004 FB |
1019 | page_dump(logfile); |
1020 | ||
4b74fe1f FB |
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); | |
b346ff46 | 1027 | fprintf(logfile, "entry 0x%08lx\n" , info->entry); |
4b74fe1f | 1028 | } |
31e31b8a FB |
1029 | |
1030 | target_set_brk((char *)info->brk); | |
1031 | syscall_init(); | |
66fb9763 | 1032 | signal_init(); |
31e31b8a | 1033 | |
9de5e440 | 1034 | global_env = env; |
0ecfa993 | 1035 | |
851e67a1 FB |
1036 | /* build Task State */ |
1037 | memset(ts, 0, sizeof(TaskState)); | |
1038 | env->opaque = ts; | |
1039 | ts->used = 1; | |
59faf6d6 | 1040 | env->user_mode_only = 1; |
851e67a1 | 1041 | |
b346ff46 | 1042 | #if defined(TARGET_I386) |
2e255c6b FB |
1043 | cpu_x86_set_cpl(env, 3); |
1044 | ||
3802ce26 | 1045 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
75c6215f | 1046 | env->hflags |= HF_PE_MASK; |
3802ce26 | 1047 | |
415e561f FB |
1048 | /* flags setup : we activate the IRQs by default as in user mode */ |
1049 | env->eflags |= IF_MASK; | |
1050 | ||
6dbad63e | 1051 | /* linux register setup */ |
0ecfa993 FB |
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; | |
dab2ed99 | 1060 | env->eip = regs->eip; |
31e31b8a | 1061 | |
f4beb510 FB |
1062 | /* linux interrupt setup */ |
1063 | env->idt.base = (void *)idt_table; | |
1064 | env->idt.limit = sizeof(idt_table) - 1; | |
1065 | set_idt(0, 0); | |
1066 | set_idt(1, 0); | |
1067 | set_idt(2, 0); | |
1068 | set_idt(3, 3); | |
1069 | set_idt(4, 3); | |
1070 | set_idt(5, 3); | |
1071 | set_idt(6, 0); | |
1072 | set_idt(7, 0); | |
1073 | set_idt(8, 0); | |
1074 | set_idt(9, 0); | |
1075 | set_idt(10, 0); | |
1076 | set_idt(11, 0); | |
1077 | set_idt(12, 0); | |
1078 | set_idt(13, 0); | |
1079 | set_idt(14, 0); | |
1080 | set_idt(15, 0); | |
1081 | set_idt(16, 0); | |
1082 | set_idt(17, 0); | |
1083 | set_idt(18, 0); | |
1084 | set_idt(19, 0); | |
1085 | set_idt(0x80, 3); | |
1086 | ||
6dbad63e FB |
1087 | /* linux segment setup */ |
1088 | env->gdt.base = (void *)gdt_table; | |
1089 | env->gdt.limit = sizeof(gdt_table) - 1; | |
f4beb510 FB |
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)); | |
6dbad63e FB |
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); | |
92ccca6a | 1102 | |
b346ff46 FB |
1103 | #elif defined(TARGET_ARM) |
1104 | { | |
1105 | int i; | |
1106 | for(i = 0; i < 16; i++) { | |
1107 | env->regs[i] = regs->uregs[i]; | |
1108 | } | |
1109 | env->cpsr = regs->uregs[16]; | |
1110 | } | |
93ac68bc | 1111 | #elif defined(TARGET_SPARC) |
060366c5 FB |
1112 | { |
1113 | int i; | |
1114 | env->pc = regs->pc; | |
1115 | env->npc = regs->npc; | |
1116 | env->y = regs->y; | |
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]; | |
1121 | } | |
67867308 FB |
1122 | #elif defined(TARGET_PPC) |
1123 | { | |
1124 | int i; | |
61190b14 FB |
1125 | for (i = 0; i < 32; i++) { |
1126 | if (i != 12 && i != 6) | |
1127 | env->msr[i] = (regs->msr >> i) & 1; | |
1128 | } | |
67867308 FB |
1129 | env->nip = regs->nip; |
1130 | for(i = 0; i < 32; i++) { | |
1131 | env->gpr[i] = regs->gpr[i]; | |
1132 | } | |
1133 | } | |
b346ff46 FB |
1134 | #else |
1135 | #error unsupported target CPU | |
1136 | #endif | |
31e31b8a | 1137 | |
1b6b029e FB |
1138 | cpu_loop(env); |
1139 | /* never exits */ | |
31e31b8a FB |
1140 | return 0; |
1141 | } |