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Commit | Line | Data |
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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 | |
83fb7adf FB |
31 | #ifdef __APPLE__ |
32 | #include <crt_externs.h> | |
33 | # define environ (*_NSGetEnviron()) | |
34 | #endif | |
35 | ||
74cd30b8 | 36 | static const char *interp_prefix = CONFIG_QEMU_PREFIX; |
586314f2 | 37 | |
3a4739d6 | 38 | #if defined(__i386__) && !defined(CONFIG_STATIC) |
f801f97e FB |
39 | /* Force usage of an ELF interpreter even if it is an ELF shared |
40 | object ! */ | |
41 | const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2"; | |
4304763b | 42 | #endif |
74cd30b8 | 43 | |
93ac68bc | 44 | /* for recent libc, we add these dummy symbols which are not declared |
74cd30b8 | 45 | when generating a linked object (bug in ld ?) */ |
fbf59244 | 46 | #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC) |
c6981055 FB |
47 | long __preinit_array_start[0]; |
48 | long __preinit_array_end[0]; | |
74cd30b8 FB |
49 | long __init_array_start[0]; |
50 | long __init_array_end[0]; | |
51 | long __fini_array_start[0]; | |
52 | long __fini_array_end[0]; | |
53 | #endif | |
54 | ||
9de5e440 FB |
55 | /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
56 | we allocate a bigger stack. Need a better solution, for example | |
57 | by remapping the process stack directly at the right place */ | |
58 | unsigned long x86_stack_size = 512 * 1024; | |
31e31b8a FB |
59 | |
60 | void gemu_log(const char *fmt, ...) | |
61 | { | |
62 | va_list ap; | |
63 | ||
64 | va_start(ap, fmt); | |
65 | vfprintf(stderr, fmt, ap); | |
66 | va_end(ap); | |
67 | } | |
68 | ||
61190b14 | 69 | void cpu_outb(CPUState *env, int addr, int val) |
367e86e8 FB |
70 | { |
71 | fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val); | |
72 | } | |
73 | ||
61190b14 | 74 | void cpu_outw(CPUState *env, int addr, int val) |
367e86e8 FB |
75 | { |
76 | fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val); | |
77 | } | |
78 | ||
61190b14 | 79 | void cpu_outl(CPUState *env, int addr, int val) |
367e86e8 FB |
80 | { |
81 | fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); | |
82 | } | |
83 | ||
61190b14 | 84 | int cpu_inb(CPUState *env, int addr) |
367e86e8 FB |
85 | { |
86 | fprintf(stderr, "inb: port=0x%04x\n", addr); | |
87 | return 0; | |
88 | } | |
89 | ||
61190b14 | 90 | int cpu_inw(CPUState *env, int addr) |
367e86e8 FB |
91 | { |
92 | fprintf(stderr, "inw: port=0x%04x\n", addr); | |
93 | return 0; | |
94 | } | |
95 | ||
61190b14 | 96 | int cpu_inl(CPUState *env, int addr) |
367e86e8 FB |
97 | { |
98 | fprintf(stderr, "inl: port=0x%04x\n", addr); | |
99 | return 0; | |
100 | } | |
101 | ||
a541f297 | 102 | int cpu_get_pic_interrupt(CPUState *env) |
92ccca6a FB |
103 | { |
104 | return -1; | |
105 | } | |
106 | ||
28ab0e2e FB |
107 | /* timers for rdtsc */ |
108 | ||
109 | #if defined(__i386__) | |
110 | ||
111 | int64_t cpu_get_real_ticks(void) | |
112 | { | |
113 | int64_t val; | |
114 | asm volatile ("rdtsc" : "=A" (val)); | |
115 | return val; | |
116 | } | |
117 | ||
118 | #elif defined(__x86_64__) | |
119 | ||
120 | int64_t cpu_get_real_ticks(void) | |
121 | { | |
122 | uint32_t low,high; | |
123 | int64_t val; | |
124 | asm volatile("rdtsc" : "=a" (low), "=d" (high)); | |
125 | val = high; | |
126 | val <<= 32; | |
127 | val |= low; | |
128 | return val; | |
129 | } | |
130 | ||
131 | #else | |
132 | ||
133 | static uint64_t emu_time; | |
134 | ||
135 | int64_t cpu_get_real_ticks(void) | |
136 | { | |
137 | return emu_time++; | |
138 | } | |
139 | ||
140 | #endif | |
141 | ||
a541f297 FB |
142 | #ifdef TARGET_I386 |
143 | /***********************************************************/ | |
144 | /* CPUX86 core interface */ | |
145 | ||
28ab0e2e FB |
146 | uint64_t cpu_get_tsc(CPUX86State *env) |
147 | { | |
148 | return cpu_get_real_ticks(); | |
149 | } | |
150 | ||
f4beb510 FB |
151 | static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
152 | int flags) | |
6dbad63e | 153 | { |
f4beb510 | 154 | unsigned int e1, e2; |
6dbad63e FB |
155 | e1 = (addr << 16) | (limit & 0xffff); |
156 | e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); | |
f4beb510 FB |
157 | e2 |= flags; |
158 | stl((uint8_t *)ptr, e1); | |
159 | stl((uint8_t *)ptr + 4, e2); | |
160 | } | |
161 | ||
162 | static void set_gate(void *ptr, unsigned int type, unsigned int dpl, | |
163 | unsigned long addr, unsigned int sel) | |
164 | { | |
165 | unsigned int e1, e2; | |
166 | e1 = (addr & 0xffff) | (sel << 16); | |
167 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); | |
6dbad63e FB |
168 | stl((uint8_t *)ptr, e1); |
169 | stl((uint8_t *)ptr + 4, e2); | |
170 | } | |
171 | ||
172 | uint64_t gdt_table[6]; | |
f4beb510 FB |
173 | uint64_t idt_table[256]; |
174 | ||
175 | /* only dpl matters as we do only user space emulation */ | |
176 | static void set_idt(int n, unsigned int dpl) | |
177 | { | |
178 | set_gate(idt_table + n, 0, dpl, 0, 0); | |
179 | } | |
31e31b8a | 180 | |
89e957e7 | 181 | void cpu_loop(CPUX86State *env) |
1b6b029e | 182 | { |
bc8a22cc | 183 | int trapnr; |
9de5e440 FB |
184 | uint8_t *pc; |
185 | target_siginfo_t info; | |
851e67a1 | 186 | |
1b6b029e | 187 | for(;;) { |
bc8a22cc | 188 | trapnr = cpu_x86_exec(env); |
bc8a22cc | 189 | switch(trapnr) { |
f4beb510 FB |
190 | case 0x80: |
191 | /* linux syscall */ | |
192 | env->regs[R_EAX] = do_syscall(env, | |
193 | env->regs[R_EAX], | |
194 | env->regs[R_EBX], | |
195 | env->regs[R_ECX], | |
196 | env->regs[R_EDX], | |
197 | env->regs[R_ESI], | |
198 | env->regs[R_EDI], | |
199 | env->regs[R_EBP]); | |
200 | break; | |
201 | case EXCP0B_NOSEG: | |
202 | case EXCP0C_STACK: | |
203 | info.si_signo = SIGBUS; | |
204 | info.si_errno = 0; | |
205 | info.si_code = TARGET_SI_KERNEL; | |
206 | info._sifields._sigfault._addr = 0; | |
207 | queue_signal(info.si_signo, &info); | |
208 | break; | |
1b6b029e | 209 | case EXCP0D_GPF: |
851e67a1 | 210 | if (env->eflags & VM_MASK) { |
89e957e7 | 211 | handle_vm86_fault(env); |
1b6b029e | 212 | } else { |
f4beb510 FB |
213 | info.si_signo = SIGSEGV; |
214 | info.si_errno = 0; | |
215 | info.si_code = TARGET_SI_KERNEL; | |
216 | info._sifields._sigfault._addr = 0; | |
217 | queue_signal(info.si_signo, &info); | |
1b6b029e FB |
218 | } |
219 | break; | |
b689bc57 FB |
220 | case EXCP0E_PAGE: |
221 | info.si_signo = SIGSEGV; | |
222 | info.si_errno = 0; | |
223 | if (!(env->error_code & 1)) | |
224 | info.si_code = TARGET_SEGV_MAPERR; | |
225 | else | |
226 | info.si_code = TARGET_SEGV_ACCERR; | |
970a87a6 | 227 | info._sifields._sigfault._addr = env->cr[2]; |
b689bc57 FB |
228 | queue_signal(info.si_signo, &info); |
229 | break; | |
9de5e440 | 230 | case EXCP00_DIVZ: |
bc8a22cc | 231 | if (env->eflags & VM_MASK) { |
447db213 | 232 | handle_vm86_trap(env, trapnr); |
bc8a22cc FB |
233 | } else { |
234 | /* division by zero */ | |
235 | info.si_signo = SIGFPE; | |
236 | info.si_errno = 0; | |
237 | info.si_code = TARGET_FPE_INTDIV; | |
238 | info._sifields._sigfault._addr = env->eip; | |
239 | queue_signal(info.si_signo, &info); | |
240 | } | |
9de5e440 | 241 | break; |
447db213 FB |
242 | case EXCP01_SSTP: |
243 | case EXCP03_INT3: | |
244 | if (env->eflags & VM_MASK) { | |
245 | handle_vm86_trap(env, trapnr); | |
246 | } else { | |
247 | info.si_signo = SIGTRAP; | |
248 | info.si_errno = 0; | |
249 | if (trapnr == EXCP01_SSTP) { | |
250 | info.si_code = TARGET_TRAP_BRKPT; | |
251 | info._sifields._sigfault._addr = env->eip; | |
252 | } else { | |
253 | info.si_code = TARGET_SI_KERNEL; | |
254 | info._sifields._sigfault._addr = 0; | |
255 | } | |
256 | queue_signal(info.si_signo, &info); | |
257 | } | |
258 | break; | |
9de5e440 FB |
259 | case EXCP04_INTO: |
260 | case EXCP05_BOUND: | |
bc8a22cc | 261 | if (env->eflags & VM_MASK) { |
447db213 | 262 | handle_vm86_trap(env, trapnr); |
bc8a22cc FB |
263 | } else { |
264 | info.si_signo = SIGSEGV; | |
265 | info.si_errno = 0; | |
b689bc57 | 266 | info.si_code = TARGET_SI_KERNEL; |
bc8a22cc FB |
267 | info._sifields._sigfault._addr = 0; |
268 | queue_signal(info.si_signo, &info); | |
269 | } | |
9de5e440 FB |
270 | break; |
271 | case EXCP06_ILLOP: | |
272 | info.si_signo = SIGILL; | |
273 | info.si_errno = 0; | |
274 | info.si_code = TARGET_ILL_ILLOPN; | |
275 | info._sifields._sigfault._addr = env->eip; | |
276 | queue_signal(info.si_signo, &info); | |
277 | break; | |
278 | case EXCP_INTERRUPT: | |
279 | /* just indicate that signals should be handled asap */ | |
280 | break; | |
1b6b029e | 281 | default: |
970a87a6 | 282 | pc = env->segs[R_CS].base + env->eip; |
bc8a22cc FB |
283 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
284 | (long)pc, trapnr); | |
1b6b029e FB |
285 | abort(); |
286 | } | |
66fb9763 | 287 | process_pending_signals(env); |
1b6b029e FB |
288 | } |
289 | } | |
b346ff46 FB |
290 | #endif |
291 | ||
292 | #ifdef TARGET_ARM | |
293 | ||
6f1f31c0 FB |
294 | /* XXX: find a better solution */ |
295 | extern void tb_invalidate_page_range(target_ulong start, target_ulong end); | |
296 | ||
297 | static void arm_cache_flush(target_ulong start, target_ulong last) | |
298 | { | |
299 | target_ulong addr, last1; | |
300 | ||
301 | if (last < start) | |
302 | return; | |
303 | addr = start; | |
304 | for(;;) { | |
305 | last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1; | |
306 | if (last1 > last) | |
307 | last1 = last; | |
308 | tb_invalidate_page_range(addr, last1 + 1); | |
309 | if (last1 == last) | |
310 | break; | |
311 | addr = last1 + 1; | |
312 | } | |
313 | } | |
314 | ||
b346ff46 FB |
315 | void cpu_loop(CPUARMState *env) |
316 | { | |
317 | int trapnr; | |
318 | unsigned int n, insn; | |
319 | target_siginfo_t info; | |
320 | ||
321 | for(;;) { | |
322 | trapnr = cpu_arm_exec(env); | |
323 | switch(trapnr) { | |
324 | case EXCP_UDEF: | |
c6981055 FB |
325 | { |
326 | TaskState *ts = env->opaque; | |
327 | uint32_t opcode; | |
328 | ||
329 | /* we handle the FPU emulation here, as Linux */ | |
330 | /* we get the opcode */ | |
331 | opcode = ldl_raw((uint8_t *)env->regs[15]); | |
332 | ||
333 | if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) { | |
334 | info.si_signo = SIGILL; | |
335 | info.si_errno = 0; | |
336 | info.si_code = TARGET_ILL_ILLOPN; | |
337 | info._sifields._sigfault._addr = env->regs[15]; | |
338 | queue_signal(info.si_signo, &info); | |
339 | } else { | |
340 | /* increment PC */ | |
341 | env->regs[15] += 4; | |
342 | } | |
343 | } | |
b346ff46 FB |
344 | break; |
345 | case EXCP_SWI: | |
346 | { | |
347 | /* system call */ | |
348 | insn = ldl((void *)(env->regs[15] - 4)); | |
349 | n = insn & 0xffffff; | |
6f1f31c0 FB |
350 | if (n == ARM_NR_cacheflush) { |
351 | arm_cache_flush(env->regs[0], env->regs[1]); | |
352 | } else if (n >= ARM_SYSCALL_BASE) { | |
b346ff46 FB |
353 | /* linux syscall */ |
354 | n -= ARM_SYSCALL_BASE; | |
355 | env->regs[0] = do_syscall(env, | |
356 | n, | |
357 | env->regs[0], | |
358 | env->regs[1], | |
359 | env->regs[2], | |
360 | env->regs[3], | |
361 | env->regs[4], | |
362 | 0); | |
363 | } else { | |
364 | goto error; | |
365 | } | |
366 | } | |
367 | break; | |
43fff238 FB |
368 | case EXCP_INTERRUPT: |
369 | /* just indicate that signals should be handled asap */ | |
370 | break; | |
b346ff46 FB |
371 | default: |
372 | error: | |
373 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", | |
374 | trapnr); | |
7fe48483 | 375 | cpu_dump_state(env, stderr, fprintf, 0); |
b346ff46 FB |
376 | abort(); |
377 | } | |
378 | process_pending_signals(env); | |
379 | } | |
380 | } | |
381 | ||
382 | #endif | |
1b6b029e | 383 | |
93ac68bc FB |
384 | #ifdef TARGET_SPARC |
385 | ||
060366c5 FB |
386 | //#define DEBUG_WIN |
387 | ||
388 | /* WARNING: dealing with register windows _is_ complicated */ | |
389 | static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) | |
390 | { | |
391 | index = (index + cwp * 16) & (16 * NWINDOWS - 1); | |
392 | /* wrap handling : if cwp is on the last window, then we use the | |
393 | registers 'after' the end */ | |
394 | if (index < 8 && env->cwp == (NWINDOWS - 1)) | |
395 | index += (16 * NWINDOWS); | |
396 | return index; | |
397 | } | |
398 | ||
399 | static inline void save_window_offset(CPUSPARCState *env, int offset) | |
400 | { | |
401 | unsigned int new_wim, i, cwp1; | |
402 | uint32_t *sp_ptr; | |
403 | ||
404 | new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) & | |
405 | ((1LL << NWINDOWS) - 1); | |
406 | /* save the window */ | |
407 | cwp1 = (env->cwp + offset) & (NWINDOWS - 1); | |
408 | sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]); | |
409 | #if defined(DEBUG_WIN) | |
410 | printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n", | |
411 | (int)sp_ptr, cwp1); | |
412 | #endif | |
413 | for(i = 0; i < 16; i++) | |
414 | stl_raw(sp_ptr + i, env->regbase[get_reg_index(env, cwp1, 8 + i)]); | |
415 | env->wim = new_wim; | |
416 | } | |
417 | ||
418 | static void save_window(CPUSPARCState *env) | |
419 | { | |
420 | save_window_offset(env, 2); | |
421 | } | |
422 | ||
423 | static void restore_window(CPUSPARCState *env) | |
424 | { | |
425 | unsigned int new_wim, i, cwp1; | |
426 | uint32_t *sp_ptr; | |
427 | ||
428 | new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) & | |
429 | ((1LL << NWINDOWS) - 1); | |
430 | ||
431 | /* restore the invalid window */ | |
432 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
433 | sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]); | |
434 | #if defined(DEBUG_WIN) | |
435 | printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n", | |
436 | (int)sp_ptr, cwp1); | |
437 | #endif | |
438 | for(i = 0; i < 16; i++) | |
439 | env->regbase[get_reg_index(env, cwp1, 8 + i)] = ldl_raw(sp_ptr + i); | |
440 | env->wim = new_wim; | |
441 | } | |
442 | ||
443 | static void flush_windows(CPUSPARCState *env) | |
444 | { | |
445 | int offset, cwp1; | |
446 | #if defined(DEBUG_WIN) | |
447 | printf("flush_windows:\n"); | |
448 | #endif | |
449 | offset = 2; | |
450 | for(;;) { | |
451 | /* if restore would invoke restore_window(), then we can stop */ | |
452 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
453 | if (env->wim & (1 << cwp1)) | |
454 | break; | |
455 | #if defined(DEBUG_WIN) | |
456 | printf("offset=%d: ", offset); | |
457 | #endif | |
458 | save_window_offset(env, offset); | |
459 | offset++; | |
460 | } | |
461 | } | |
462 | ||
93ac68bc FB |
463 | void cpu_loop (CPUSPARCState *env) |
464 | { | |
060366c5 FB |
465 | int trapnr, ret; |
466 | ||
467 | while (1) { | |
468 | trapnr = cpu_sparc_exec (env); | |
469 | ||
470 | switch (trapnr) { | |
471 | case 0x88: | |
472 | case 0x90: | |
473 | ret = do_syscall (env, env->gregs[1], | |
474 | env->regwptr[0], env->regwptr[1], | |
475 | env->regwptr[2], env->regwptr[3], | |
476 | env->regwptr[4], env->regwptr[5]); | |
477 | if ((unsigned int)ret >= (unsigned int)(-515)) { | |
478 | env->psr |= PSR_CARRY; | |
479 | ret = -ret; | |
480 | } else { | |
481 | env->psr &= ~PSR_CARRY; | |
482 | } | |
483 | env->regwptr[0] = ret; | |
484 | /* next instruction */ | |
485 | env->pc = env->npc; | |
486 | env->npc = env->npc + 4; | |
487 | break; | |
488 | case 0x83: /* flush windows */ | |
489 | // flush_windows(env); | |
490 | /* next instruction */ | |
491 | env->pc = env->npc; | |
492 | env->npc = env->npc + 4; | |
493 | break; | |
494 | case TT_WIN_OVF: /* window overflow */ | |
495 | save_window(env); | |
496 | break; | |
497 | case TT_WIN_UNF: /* window underflow */ | |
498 | restore_window(env); | |
499 | break; | |
e80cfcfc FB |
500 | case 0x100: // XXX, why do we get these? |
501 | break; | |
060366c5 FB |
502 | default: |
503 | printf ("Unhandled trap: 0x%x\n", trapnr); | |
7fe48483 | 504 | cpu_dump_state(env, stderr, fprintf, 0); |
060366c5 FB |
505 | exit (1); |
506 | } | |
507 | process_pending_signals (env); | |
508 | } | |
93ac68bc FB |
509 | } |
510 | ||
511 | #endif | |
512 | ||
67867308 | 513 | #ifdef TARGET_PPC |
9fddaa0c FB |
514 | |
515 | static inline uint64_t cpu_ppc_get_tb (CPUState *env) | |
516 | { | |
517 | /* TO FIX */ | |
518 | return 0; | |
519 | } | |
520 | ||
521 | uint32_t cpu_ppc_load_tbl (CPUState *env) | |
522 | { | |
523 | return cpu_ppc_get_tb(env) & 0xFFFFFFFF; | |
524 | } | |
525 | ||
526 | uint32_t cpu_ppc_load_tbu (CPUState *env) | |
527 | { | |
528 | return cpu_ppc_get_tb(env) >> 32; | |
529 | } | |
530 | ||
531 | static void cpu_ppc_store_tb (CPUState *env, uint64_t value) | |
532 | { | |
533 | /* TO FIX */ | |
534 | } | |
535 | ||
536 | void cpu_ppc_store_tbu (CPUState *env, uint32_t value) | |
537 | { | |
538 | cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env)); | |
539 | } | |
540 | ||
541 | void cpu_ppc_store_tbl (CPUState *env, uint32_t value) | |
542 | { | |
543 | cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value); | |
544 | } | |
545 | ||
546 | uint32_t cpu_ppc_load_decr (CPUState *env) | |
547 | { | |
548 | /* TO FIX */ | |
549 | return -1; | |
550 | } | |
551 | ||
552 | void cpu_ppc_store_decr (CPUState *env, uint32_t value) | |
553 | { | |
554 | /* TO FIX */ | |
555 | } | |
556 | ||
67867308 FB |
557 | void cpu_loop(CPUPPCState *env) |
558 | { | |
67867308 | 559 | target_siginfo_t info; |
61190b14 FB |
560 | int trapnr; |
561 | uint32_t ret; | |
67867308 FB |
562 | |
563 | for(;;) { | |
564 | trapnr = cpu_ppc_exec(env); | |
61190b14 FB |
565 | if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH && |
566 | trapnr != EXCP_TRACE) { | |
567 | if (loglevel > 0) { | |
7fe48483 | 568 | cpu_dump_state(env, logfile, fprintf, 0); |
61190b14 FB |
569 | } |
570 | } | |
67867308 FB |
571 | switch(trapnr) { |
572 | case EXCP_NONE: | |
67867308 | 573 | break; |
61190b14 FB |
574 | case EXCP_SYSCALL_USER: |
575 | /* system call */ | |
576 | /* WARNING: | |
577 | * PPC ABI uses overflow flag in cr0 to signal an error | |
578 | * in syscalls. | |
579 | */ | |
67867308 | 580 | #if 0 |
61190b14 FB |
581 | printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0], |
582 | env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); | |
67867308 | 583 | #endif |
61190b14 FB |
584 | env->crf[0] &= ~0x1; |
585 | ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], | |
586 | env->gpr[5], env->gpr[6], env->gpr[7], | |
587 | env->gpr[8]); | |
588 | if (ret > (uint32_t)(-515)) { | |
589 | env->crf[0] |= 0x1; | |
590 | ret = -ret; | |
591 | } | |
592 | env->gpr[3] = ret; | |
593 | #if 0 | |
594 | printf("syscall returned 0x%08x (%d)\n", ret, ret); | |
595 | #endif | |
596 | break; | |
597 | case EXCP_RESET: | |
598 | /* Should not happen ! */ | |
599 | fprintf(stderr, "RESET asked... Stop emulation\n"); | |
600 | if (loglevel) | |
601 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
67867308 | 602 | abort(); |
61190b14 FB |
603 | case EXCP_MACHINE_CHECK: |
604 | fprintf(stderr, "Machine check exeption... Stop emulation\n"); | |
605 | if (loglevel) | |
606 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
607 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 608 | info.si_errno = 0; |
61190b14 FB |
609 | info.si_code = TARGET_BUS_OBJERR; |
610 | info._sifields._sigfault._addr = env->nip - 4; | |
611 | queue_signal(info.si_signo, &info); | |
612 | case EXCP_DSI: | |
613 | fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]); | |
614 | if (loglevel) { | |
615 | fprintf(logfile, "Invalid data memory access: 0x%08x\n", | |
616 | env->spr[DAR]); | |
617 | } | |
618 | switch (env->error_code & 0xF) { | |
619 | case EXCP_DSI_TRANSLATE: | |
620 | info.si_signo = TARGET_SIGSEGV; | |
621 | info.si_errno = 0; | |
622 | info.si_code = TARGET_SEGV_MAPERR; | |
623 | break; | |
624 | case EXCP_DSI_NOTSUP: | |
625 | case EXCP_DSI_EXTERNAL: | |
626 | info.si_signo = TARGET_SIGILL; | |
627 | info.si_errno = 0; | |
628 | info.si_code = TARGET_ILL_ILLADR; | |
629 | break; | |
630 | case EXCP_DSI_PROT: | |
631 | info.si_signo = TARGET_SIGSEGV; | |
632 | info.si_errno = 0; | |
633 | info.si_code = TARGET_SEGV_ACCERR; | |
634 | break; | |
635 | case EXCP_DSI_DABR: | |
636 | info.si_signo = TARGET_SIGTRAP; | |
637 | info.si_errno = 0; | |
638 | info.si_code = TARGET_TRAP_BRKPT; | |
639 | break; | |
640 | default: | |
641 | /* Let's send a regular segfault... */ | |
642 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
643 | env->error_code); | |
644 | if (loglevel) { | |
645 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
646 | env->error_code); | |
647 | } | |
648 | info.si_signo = TARGET_SIGSEGV; | |
649 | info.si_errno = 0; | |
650 | info.si_code = TARGET_SEGV_MAPERR; | |
651 | break; | |
652 | } | |
67867308 FB |
653 | info._sifields._sigfault._addr = env->nip; |
654 | queue_signal(info.si_signo, &info); | |
655 | break; | |
61190b14 | 656 | case EXCP_ISI: |
67867308 | 657 | fprintf(stderr, "Invalid instruction fetch\n"); |
61190b14 FB |
658 | if (loglevel) |
659 | fprintf(logfile, "Invalid instruction fetch\n"); | |
660 | switch (env->error_code) { | |
661 | case EXCP_ISI_TRANSLATE: | |
662 | info.si_signo = TARGET_SIGSEGV; | |
67867308 | 663 | info.si_errno = 0; |
61190b14 FB |
664 | info.si_code = TARGET_SEGV_MAPERR; |
665 | break; | |
666 | case EXCP_ISI_GUARD: | |
667 | info.si_signo = TARGET_SIGILL; | |
668 | info.si_errno = 0; | |
669 | info.si_code = TARGET_ILL_ILLADR; | |
670 | break; | |
671 | case EXCP_ISI_NOEXEC: | |
672 | case EXCP_ISI_PROT: | |
673 | info.si_signo = TARGET_SIGSEGV; | |
674 | info.si_errno = 0; | |
675 | info.si_code = TARGET_SEGV_ACCERR; | |
676 | break; | |
677 | default: | |
678 | /* Let's send a regular segfault... */ | |
679 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
680 | env->error_code); | |
681 | if (loglevel) { | |
682 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
683 | env->error_code); | |
684 | } | |
685 | info.si_signo = TARGET_SIGSEGV; | |
686 | info.si_errno = 0; | |
687 | info.si_code = TARGET_SEGV_MAPERR; | |
688 | break; | |
689 | } | |
690 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
691 | queue_signal(info.si_signo, &info); |
692 | break; | |
61190b14 FB |
693 | case EXCP_EXTERNAL: |
694 | /* Should not happen ! */ | |
695 | fprintf(stderr, "External interruption... Stop emulation\n"); | |
696 | if (loglevel) | |
697 | fprintf(logfile, "External interruption... Stop emulation\n"); | |
67867308 | 698 | abort(); |
61190b14 FB |
699 | case EXCP_ALIGN: |
700 | fprintf(stderr, "Invalid unaligned memory access\n"); | |
701 | if (loglevel) | |
702 | fprintf(logfile, "Invalid unaligned memory access\n"); | |
703 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 704 | info.si_errno = 0; |
61190b14 FB |
705 | info.si_code = TARGET_BUS_ADRALN; |
706 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
707 | queue_signal(info.si_signo, &info); |
708 | break; | |
61190b14 FB |
709 | case EXCP_PROGRAM: |
710 | switch (env->error_code & ~0xF) { | |
711 | case EXCP_FP: | |
712 | fprintf(stderr, "Program exception\n"); | |
713 | if (loglevel) | |
714 | fprintf(logfile, "Program exception\n"); | |
715 | /* Set FX */ | |
716 | env->fpscr[7] |= 0x8; | |
717 | /* Finally, update FEX */ | |
718 | if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) & | |
719 | ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3))) | |
720 | env->fpscr[7] |= 0x4; | |
721 | info.si_signo = TARGET_SIGFPE; | |
722 | info.si_errno = 0; | |
723 | switch (env->error_code & 0xF) { | |
724 | case EXCP_FP_OX: | |
725 | info.si_code = TARGET_FPE_FLTOVF; | |
726 | break; | |
727 | case EXCP_FP_UX: | |
728 | info.si_code = TARGET_FPE_FLTUND; | |
729 | break; | |
730 | case EXCP_FP_ZX: | |
731 | case EXCP_FP_VXZDZ: | |
732 | info.si_code = TARGET_FPE_FLTDIV; | |
733 | break; | |
734 | case EXCP_FP_XX: | |
735 | info.si_code = TARGET_FPE_FLTRES; | |
736 | break; | |
737 | case EXCP_FP_VXSOFT: | |
738 | info.si_code = TARGET_FPE_FLTINV; | |
739 | break; | |
740 | case EXCP_FP_VXNAN: | |
741 | case EXCP_FP_VXISI: | |
742 | case EXCP_FP_VXIDI: | |
743 | case EXCP_FP_VXIMZ: | |
744 | case EXCP_FP_VXVC: | |
745 | case EXCP_FP_VXSQRT: | |
746 | case EXCP_FP_VXCVI: | |
747 | info.si_code = TARGET_FPE_FLTSUB; | |
748 | break; | |
749 | default: | |
750 | fprintf(stderr, "Unknown floating point exception " | |
751 | "(%02x)\n", env->error_code); | |
752 | if (loglevel) { | |
753 | fprintf(logfile, "Unknown floating point exception " | |
754 | "(%02x)\n", env->error_code & 0xF); | |
755 | } | |
756 | } | |
757 | break; | |
67867308 | 758 | case EXCP_INVAL: |
61190b14 FB |
759 | fprintf(stderr, "Invalid instruction\n"); |
760 | if (loglevel) | |
761 | fprintf(logfile, "Invalid instruction\n"); | |
762 | info.si_signo = TARGET_SIGILL; | |
763 | info.si_errno = 0; | |
764 | switch (env->error_code & 0xF) { | |
765 | case EXCP_INVAL_INVAL: | |
766 | info.si_code = TARGET_ILL_ILLOPC; | |
767 | break; | |
768 | case EXCP_INVAL_LSWX: | |
67867308 | 769 | info.si_code = TARGET_ILL_ILLOPN; |
61190b14 FB |
770 | break; |
771 | case EXCP_INVAL_SPR: | |
772 | info.si_code = TARGET_ILL_PRVREG; | |
773 | break; | |
774 | case EXCP_INVAL_FP: | |
775 | info.si_code = TARGET_ILL_COPROC; | |
776 | break; | |
777 | default: | |
778 | fprintf(stderr, "Unknown invalid operation (%02x)\n", | |
779 | env->error_code & 0xF); | |
780 | if (loglevel) { | |
781 | fprintf(logfile, "Unknown invalid operation (%02x)\n", | |
782 | env->error_code & 0xF); | |
783 | } | |
784 | info.si_code = TARGET_ILL_ILLADR; | |
785 | break; | |
786 | } | |
787 | break; | |
788 | case EXCP_PRIV: | |
789 | fprintf(stderr, "Privilege violation\n"); | |
790 | if (loglevel) | |
791 | fprintf(logfile, "Privilege violation\n"); | |
792 | info.si_signo = TARGET_SIGILL; | |
793 | info.si_errno = 0; | |
794 | switch (env->error_code & 0xF) { | |
795 | case EXCP_PRIV_OPC: | |
796 | info.si_code = TARGET_ILL_PRVOPC; | |
797 | break; | |
798 | case EXCP_PRIV_REG: | |
799 | info.si_code = TARGET_ILL_PRVREG; | |
800 | break; | |
801 | default: | |
802 | fprintf(stderr, "Unknown privilege violation (%02x)\n", | |
803 | env->error_code & 0xF); | |
804 | info.si_code = TARGET_ILL_PRVOPC; | |
805 | break; | |
806 | } | |
807 | break; | |
808 | case EXCP_TRAP: | |
809 | fprintf(stderr, "Tried to call a TRAP\n"); | |
810 | if (loglevel) | |
811 | fprintf(logfile, "Tried to call a TRAP\n"); | |
812 | abort(); | |
813 | default: | |
814 | /* Should not happen ! */ | |
815 | fprintf(stderr, "Unknown program exception (%02x)\n", | |
816 | env->error_code); | |
817 | if (loglevel) { | |
818 | fprintf(logfile, "Unknwon program exception (%02x)\n", | |
819 | env->error_code); | |
820 | } | |
821 | abort(); | |
822 | } | |
823 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
824 | queue_signal(info.si_signo, &info); |
825 | break; | |
61190b14 FB |
826 | case EXCP_NO_FP: |
827 | fprintf(stderr, "No floating point allowed\n"); | |
828 | if (loglevel) | |
829 | fprintf(logfile, "No floating point allowed\n"); | |
830 | info.si_signo = TARGET_SIGILL; | |
67867308 | 831 | info.si_errno = 0; |
61190b14 FB |
832 | info.si_code = TARGET_ILL_COPROC; |
833 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
834 | queue_signal(info.si_signo, &info); |
835 | break; | |
61190b14 FB |
836 | case EXCP_DECR: |
837 | /* Should not happen ! */ | |
838 | fprintf(stderr, "Decrementer exception\n"); | |
839 | if (loglevel) | |
840 | fprintf(logfile, "Decrementer exception\n"); | |
841 | abort(); | |
67867308 | 842 | case EXCP_RESA: /* Implementation specific */ |
61190b14 FB |
843 | /* Should not happen ! */ |
844 | fprintf(stderr, "RESA exception should never happen !\n"); | |
845 | if (loglevel) | |
846 | fprintf(logfile, "RESA exception should never happen !\n"); | |
847 | abort(); | |
67867308 | 848 | case EXCP_RESB: /* Implementation specific */ |
61190b14 FB |
849 | /* Should not happen ! */ |
850 | fprintf(stderr, "RESB exception should never happen !\n"); | |
851 | if (loglevel) | |
852 | fprintf(logfile, "RESB exception should never happen !\n"); | |
67867308 | 853 | abort(); |
61190b14 FB |
854 | case EXCP_TRACE: |
855 | /* Do nothing: we use this to trace execution */ | |
67867308 | 856 | break; |
61190b14 FB |
857 | case EXCP_FP_ASSIST: |
858 | /* Should not happen ! */ | |
859 | fprintf(stderr, "Floating point assist exception\n"); | |
860 | if (loglevel) | |
861 | fprintf(logfile, "Floating point assist exception\n"); | |
862 | abort(); | |
863 | case EXCP_MTMSR: | |
864 | /* We reloaded the msr, just go on */ | |
9fddaa0c | 865 | if (msr_pr == 0) { |
61190b14 FB |
866 | fprintf(stderr, "Tried to go into supervisor mode !\n"); |
867 | if (loglevel) | |
868 | fprintf(logfile, "Tried to go into supervisor mode !\n"); | |
869 | abort(); | |
67867308 | 870 | } |
61190b14 FB |
871 | break; |
872 | case EXCP_BRANCH: | |
873 | /* We stopped because of a jump... */ | |
874 | break; | |
875 | case EXCP_RFI: | |
876 | /* Should not occur: we always are in user mode */ | |
877 | fprintf(stderr, "Return from interrupt ?\n"); | |
878 | if (loglevel) | |
879 | fprintf(logfile, "Return from interrupt ?\n"); | |
880 | abort(); | |
881 | case EXCP_INTERRUPT: | |
882 | /* Don't know why this should ever happen... */ | |
883 | break; | |
a541f297 FB |
884 | case EXCP_DEBUG: |
885 | break; | |
67867308 | 886 | default: |
67867308 FB |
887 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
888 | trapnr); | |
61190b14 FB |
889 | if (loglevel) { |
890 | fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - " | |
891 | "0x%02x - aborting\n", trapnr, env->error_code); | |
892 | } | |
67867308 FB |
893 | abort(); |
894 | } | |
895 | process_pending_signals(env); | |
896 | } | |
897 | } | |
898 | #endif | |
899 | ||
31e31b8a FB |
900 | void usage(void) |
901 | { | |
4606bb3f | 902 | printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n" |
6f1f31c0 | 903 | "usage: qemu-" TARGET_ARCH " [-h] [-d opts] [-L path] [-s size] program [arguments...]\n" |
b346ff46 | 904 | "Linux CPU emulator (compiled for %s emulation)\n" |
d691f669 | 905 | "\n" |
54936004 | 906 | "-h print this help\n" |
b346ff46 FB |
907 | "-L path set the elf interpreter prefix (default=%s)\n" |
908 | "-s size set the stack size in bytes (default=%ld)\n" | |
54936004 FB |
909 | "\n" |
910 | "debug options:\n" | |
c6981055 FB |
911 | #ifdef USE_CODE_COPY |
912 | "-no-code-copy disable code copy acceleration\n" | |
913 | #endif | |
6f1f31c0 | 914 | "-d options activate log (logfile=%s)\n" |
54936004 | 915 | "-p pagesize set the host page size to 'pagesize'\n", |
b346ff46 | 916 | TARGET_ARCH, |
d691f669 | 917 | interp_prefix, |
54936004 FB |
918 | x86_stack_size, |
919 | DEBUG_LOGFILE); | |
74cd30b8 | 920 | _exit(1); |
31e31b8a FB |
921 | } |
922 | ||
9de5e440 | 923 | /* XXX: currently only used for async signals (see signal.c) */ |
b346ff46 | 924 | CPUState *global_env; |
59faf6d6 FB |
925 | /* used only if single thread */ |
926 | CPUState *cpu_single_env = NULL; | |
927 | ||
851e67a1 FB |
928 | /* used to free thread contexts */ |
929 | TaskState *first_task_state; | |
9de5e440 | 930 | |
31e31b8a FB |
931 | int main(int argc, char **argv) |
932 | { | |
933 | const char *filename; | |
01ffc75b | 934 | struct target_pt_regs regs1, *regs = ®s1; |
31e31b8a | 935 | struct image_info info1, *info = &info1; |
851e67a1 | 936 | TaskState ts1, *ts = &ts1; |
b346ff46 | 937 | CPUState *env; |
586314f2 | 938 | int optind; |
d691f669 FB |
939 | const char *r; |
940 | ||
31e31b8a FB |
941 | if (argc <= 1) |
942 | usage(); | |
f801f97e | 943 | |
cc38b844 FB |
944 | /* init debug */ |
945 | cpu_set_log_filename(DEBUG_LOGFILE); | |
946 | ||
586314f2 | 947 | optind = 1; |
d691f669 FB |
948 | for(;;) { |
949 | if (optind >= argc) | |
950 | break; | |
951 | r = argv[optind]; | |
952 | if (r[0] != '-') | |
953 | break; | |
586314f2 | 954 | optind++; |
d691f669 FB |
955 | r++; |
956 | if (!strcmp(r, "-")) { | |
957 | break; | |
958 | } else if (!strcmp(r, "d")) { | |
e19e89a5 FB |
959 | int mask; |
960 | CPULogItem *item; | |
6f1f31c0 FB |
961 | |
962 | if (optind >= argc) | |
963 | break; | |
e19e89a5 | 964 | |
6f1f31c0 FB |
965 | r = argv[optind++]; |
966 | mask = cpu_str_to_log_mask(r); | |
e19e89a5 FB |
967 | if (!mask) { |
968 | printf("Log items (comma separated):\n"); | |
969 | for(item = cpu_log_items; item->mask != 0; item++) { | |
970 | printf("%-10s %s\n", item->name, item->help); | |
971 | } | |
972 | exit(1); | |
973 | } | |
974 | cpu_set_log(mask); | |
d691f669 FB |
975 | } else if (!strcmp(r, "s")) { |
976 | r = argv[optind++]; | |
977 | x86_stack_size = strtol(r, (char **)&r, 0); | |
978 | if (x86_stack_size <= 0) | |
979 | usage(); | |
980 | if (*r == 'M') | |
981 | x86_stack_size *= 1024 * 1024; | |
982 | else if (*r == 'k' || *r == 'K') | |
983 | x86_stack_size *= 1024; | |
984 | } else if (!strcmp(r, "L")) { | |
985 | interp_prefix = argv[optind++]; | |
54936004 | 986 | } else if (!strcmp(r, "p")) { |
83fb7adf FB |
987 | qemu_host_page_size = atoi(argv[optind++]); |
988 | if (qemu_host_page_size == 0 || | |
989 | (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { | |
54936004 FB |
990 | fprintf(stderr, "page size must be a power of two\n"); |
991 | exit(1); | |
992 | } | |
c6981055 FB |
993 | } else |
994 | #ifdef USE_CODE_COPY | |
995 | if (!strcmp(r, "no-code-copy")) { | |
996 | code_copy_enabled = 0; | |
997 | } else | |
998 | #endif | |
999 | { | |
d691f669 FB |
1000 | usage(); |
1001 | } | |
586314f2 | 1002 | } |
d691f669 FB |
1003 | if (optind >= argc) |
1004 | usage(); | |
586314f2 FB |
1005 | filename = argv[optind]; |
1006 | ||
31e31b8a | 1007 | /* Zero out regs */ |
01ffc75b | 1008 | memset(regs, 0, sizeof(struct target_pt_regs)); |
31e31b8a FB |
1009 | |
1010 | /* Zero out image_info */ | |
1011 | memset(info, 0, sizeof(struct image_info)); | |
1012 | ||
74cd30b8 FB |
1013 | /* Scan interp_prefix dir for replacement files. */ |
1014 | init_paths(interp_prefix); | |
1015 | ||
83fb7adf FB |
1016 | /* NOTE: we need to init the CPU at this stage to get |
1017 | qemu_host_page_size */ | |
b346ff46 | 1018 | env = cpu_init(); |
92ccca6a | 1019 | |
74cd30b8 | 1020 | if (elf_exec(filename, argv+optind, environ, regs, info) != 0) { |
31e31b8a | 1021 | printf("Error loading %s\n", filename); |
74cd30b8 | 1022 | _exit(1); |
31e31b8a FB |
1023 | } |
1024 | ||
4b74fe1f | 1025 | if (loglevel) { |
54936004 FB |
1026 | page_dump(logfile); |
1027 | ||
4b74fe1f FB |
1028 | fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk); |
1029 | fprintf(logfile, "end_code 0x%08lx\n" , info->end_code); | |
1030 | fprintf(logfile, "start_code 0x%08lx\n" , info->start_code); | |
1031 | fprintf(logfile, "end_data 0x%08lx\n" , info->end_data); | |
1032 | fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack); | |
1033 | fprintf(logfile, "brk 0x%08lx\n" , info->brk); | |
b346ff46 | 1034 | fprintf(logfile, "entry 0x%08lx\n" , info->entry); |
4b74fe1f | 1035 | } |
31e31b8a FB |
1036 | |
1037 | target_set_brk((char *)info->brk); | |
1038 | syscall_init(); | |
66fb9763 | 1039 | signal_init(); |
31e31b8a | 1040 | |
9de5e440 | 1041 | global_env = env; |
0ecfa993 | 1042 | |
851e67a1 FB |
1043 | /* build Task State */ |
1044 | memset(ts, 0, sizeof(TaskState)); | |
1045 | env->opaque = ts; | |
1046 | ts->used = 1; | |
59faf6d6 | 1047 | env->user_mode_only = 1; |
851e67a1 | 1048 | |
b346ff46 | 1049 | #if defined(TARGET_I386) |
2e255c6b FB |
1050 | cpu_x86_set_cpl(env, 3); |
1051 | ||
3802ce26 | 1052 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
75c6215f | 1053 | env->hflags |= HF_PE_MASK; |
3802ce26 | 1054 | |
415e561f FB |
1055 | /* flags setup : we activate the IRQs by default as in user mode */ |
1056 | env->eflags |= IF_MASK; | |
1057 | ||
6dbad63e | 1058 | /* linux register setup */ |
0ecfa993 FB |
1059 | env->regs[R_EAX] = regs->eax; |
1060 | env->regs[R_EBX] = regs->ebx; | |
1061 | env->regs[R_ECX] = regs->ecx; | |
1062 | env->regs[R_EDX] = regs->edx; | |
1063 | env->regs[R_ESI] = regs->esi; | |
1064 | env->regs[R_EDI] = regs->edi; | |
1065 | env->regs[R_EBP] = regs->ebp; | |
1066 | env->regs[R_ESP] = regs->esp; | |
dab2ed99 | 1067 | env->eip = regs->eip; |
31e31b8a | 1068 | |
f4beb510 FB |
1069 | /* linux interrupt setup */ |
1070 | env->idt.base = (void *)idt_table; | |
1071 | env->idt.limit = sizeof(idt_table) - 1; | |
1072 | set_idt(0, 0); | |
1073 | set_idt(1, 0); | |
1074 | set_idt(2, 0); | |
1075 | set_idt(3, 3); | |
1076 | set_idt(4, 3); | |
1077 | set_idt(5, 3); | |
1078 | set_idt(6, 0); | |
1079 | set_idt(7, 0); | |
1080 | set_idt(8, 0); | |
1081 | set_idt(9, 0); | |
1082 | set_idt(10, 0); | |
1083 | set_idt(11, 0); | |
1084 | set_idt(12, 0); | |
1085 | set_idt(13, 0); | |
1086 | set_idt(14, 0); | |
1087 | set_idt(15, 0); | |
1088 | set_idt(16, 0); | |
1089 | set_idt(17, 0); | |
1090 | set_idt(18, 0); | |
1091 | set_idt(19, 0); | |
1092 | set_idt(0x80, 3); | |
1093 | ||
6dbad63e FB |
1094 | /* linux segment setup */ |
1095 | env->gdt.base = (void *)gdt_table; | |
1096 | env->gdt.limit = sizeof(gdt_table) - 1; | |
f4beb510 FB |
1097 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
1098 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
1099 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); | |
1100 | write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, | |
1101 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
1102 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); | |
6dbad63e FB |
1103 | cpu_x86_load_seg(env, R_CS, __USER_CS); |
1104 | cpu_x86_load_seg(env, R_DS, __USER_DS); | |
1105 | cpu_x86_load_seg(env, R_ES, __USER_DS); | |
1106 | cpu_x86_load_seg(env, R_SS, __USER_DS); | |
1107 | cpu_x86_load_seg(env, R_FS, __USER_DS); | |
1108 | cpu_x86_load_seg(env, R_GS, __USER_DS); | |
92ccca6a | 1109 | |
b346ff46 FB |
1110 | #elif defined(TARGET_ARM) |
1111 | { | |
1112 | int i; | |
1113 | for(i = 0; i < 16; i++) { | |
1114 | env->regs[i] = regs->uregs[i]; | |
1115 | } | |
1116 | env->cpsr = regs->uregs[16]; | |
1117 | } | |
93ac68bc | 1118 | #elif defined(TARGET_SPARC) |
060366c5 FB |
1119 | { |
1120 | int i; | |
1121 | env->pc = regs->pc; | |
1122 | env->npc = regs->npc; | |
1123 | env->y = regs->y; | |
1124 | for(i = 0; i < 8; i++) | |
1125 | env->gregs[i] = regs->u_regs[i]; | |
1126 | for(i = 0; i < 8; i++) | |
1127 | env->regwptr[i] = regs->u_regs[i + 8]; | |
1128 | } | |
67867308 FB |
1129 | #elif defined(TARGET_PPC) |
1130 | { | |
1131 | int i; | |
61190b14 FB |
1132 | for (i = 0; i < 32; i++) { |
1133 | if (i != 12 && i != 6) | |
1134 | env->msr[i] = (regs->msr >> i) & 1; | |
1135 | } | |
67867308 FB |
1136 | env->nip = regs->nip; |
1137 | for(i = 0; i < 32; i++) { | |
1138 | env->gpr[i] = regs->gpr[i]; | |
1139 | } | |
1140 | } | |
b346ff46 FB |
1141 | #else |
1142 | #error unsupported target CPU | |
1143 | #endif | |
31e31b8a | 1144 | |
1b6b029e FB |
1145 | cpu_loop(env); |
1146 | /* never exits */ | |
31e31b8a FB |
1147 | return 0; |
1148 | } |