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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) | |
42 | long __init_array_start[0]; | |
43 | long __init_array_end[0]; | |
44 | long __fini_array_start[0]; | |
45 | long __fini_array_end[0]; | |
46 | #endif | |
47 | ||
9de5e440 FB |
48 | /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
49 | we allocate a bigger stack. Need a better solution, for example | |
50 | by remapping the process stack directly at the right place */ | |
51 | unsigned long x86_stack_size = 512 * 1024; | |
31e31b8a FB |
52 | |
53 | void gemu_log(const char *fmt, ...) | |
54 | { | |
55 | va_list ap; | |
56 | ||
57 | va_start(ap, fmt); | |
58 | vfprintf(stderr, fmt, ap); | |
59 | va_end(ap); | |
60 | } | |
61 | ||
61190b14 | 62 | void cpu_outb(CPUState *env, int addr, int val) |
367e86e8 FB |
63 | { |
64 | fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val); | |
65 | } | |
66 | ||
61190b14 | 67 | void cpu_outw(CPUState *env, int addr, int val) |
367e86e8 FB |
68 | { |
69 | fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val); | |
70 | } | |
71 | ||
61190b14 | 72 | void cpu_outl(CPUState *env, int addr, int val) |
367e86e8 FB |
73 | { |
74 | fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); | |
75 | } | |
76 | ||
61190b14 | 77 | int cpu_inb(CPUState *env, int addr) |
367e86e8 FB |
78 | { |
79 | fprintf(stderr, "inb: port=0x%04x\n", addr); | |
80 | return 0; | |
81 | } | |
82 | ||
61190b14 | 83 | int cpu_inw(CPUState *env, int addr) |
367e86e8 FB |
84 | { |
85 | fprintf(stderr, "inw: port=0x%04x\n", addr); | |
86 | return 0; | |
87 | } | |
88 | ||
61190b14 | 89 | int cpu_inl(CPUState *env, int addr) |
367e86e8 FB |
90 | { |
91 | fprintf(stderr, "inl: port=0x%04x\n", addr); | |
92 | return 0; | |
93 | } | |
94 | ||
61190b14 FB |
95 | #ifdef TARGET_I386 |
96 | /***********************************************************/ | |
97 | /* CPUX86 core interface */ | |
98 | ||
99 | int cpu_x86_get_pic_interrupt(CPUState *env) | |
92ccca6a FB |
100 | { |
101 | return -1; | |
102 | } | |
103 | ||
f4beb510 FB |
104 | static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
105 | int flags) | |
6dbad63e | 106 | { |
f4beb510 | 107 | unsigned int e1, e2; |
6dbad63e FB |
108 | e1 = (addr << 16) | (limit & 0xffff); |
109 | e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); | |
f4beb510 FB |
110 | e2 |= flags; |
111 | stl((uint8_t *)ptr, e1); | |
112 | stl((uint8_t *)ptr + 4, e2); | |
113 | } | |
114 | ||
115 | static void set_gate(void *ptr, unsigned int type, unsigned int dpl, | |
116 | unsigned long addr, unsigned int sel) | |
117 | { | |
118 | unsigned int e1, e2; | |
119 | e1 = (addr & 0xffff) | (sel << 16); | |
120 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); | |
6dbad63e FB |
121 | stl((uint8_t *)ptr, e1); |
122 | stl((uint8_t *)ptr + 4, e2); | |
123 | } | |
124 | ||
125 | uint64_t gdt_table[6]; | |
f4beb510 FB |
126 | uint64_t idt_table[256]; |
127 | ||
128 | /* only dpl matters as we do only user space emulation */ | |
129 | static void set_idt(int n, unsigned int dpl) | |
130 | { | |
131 | set_gate(idt_table + n, 0, dpl, 0, 0); | |
132 | } | |
31e31b8a | 133 | |
89e957e7 | 134 | void cpu_loop(CPUX86State *env) |
1b6b029e | 135 | { |
bc8a22cc | 136 | int trapnr; |
9de5e440 FB |
137 | uint8_t *pc; |
138 | target_siginfo_t info; | |
851e67a1 | 139 | |
1b6b029e | 140 | for(;;) { |
bc8a22cc | 141 | trapnr = cpu_x86_exec(env); |
bc8a22cc | 142 | switch(trapnr) { |
f4beb510 FB |
143 | case 0x80: |
144 | /* linux syscall */ | |
145 | env->regs[R_EAX] = do_syscall(env, | |
146 | env->regs[R_EAX], | |
147 | env->regs[R_EBX], | |
148 | env->regs[R_ECX], | |
149 | env->regs[R_EDX], | |
150 | env->regs[R_ESI], | |
151 | env->regs[R_EDI], | |
152 | env->regs[R_EBP]); | |
153 | break; | |
154 | case EXCP0B_NOSEG: | |
155 | case EXCP0C_STACK: | |
156 | info.si_signo = SIGBUS; | |
157 | info.si_errno = 0; | |
158 | info.si_code = TARGET_SI_KERNEL; | |
159 | info._sifields._sigfault._addr = 0; | |
160 | queue_signal(info.si_signo, &info); | |
161 | break; | |
1b6b029e | 162 | case EXCP0D_GPF: |
851e67a1 | 163 | if (env->eflags & VM_MASK) { |
89e957e7 | 164 | handle_vm86_fault(env); |
1b6b029e | 165 | } else { |
f4beb510 FB |
166 | info.si_signo = SIGSEGV; |
167 | info.si_errno = 0; | |
168 | info.si_code = TARGET_SI_KERNEL; | |
169 | info._sifields._sigfault._addr = 0; | |
170 | queue_signal(info.si_signo, &info); | |
1b6b029e FB |
171 | } |
172 | break; | |
b689bc57 FB |
173 | case EXCP0E_PAGE: |
174 | info.si_signo = SIGSEGV; | |
175 | info.si_errno = 0; | |
176 | if (!(env->error_code & 1)) | |
177 | info.si_code = TARGET_SEGV_MAPERR; | |
178 | else | |
179 | info.si_code = TARGET_SEGV_ACCERR; | |
970a87a6 | 180 | info._sifields._sigfault._addr = env->cr[2]; |
b689bc57 FB |
181 | queue_signal(info.si_signo, &info); |
182 | break; | |
9de5e440 | 183 | case EXCP00_DIVZ: |
bc8a22cc | 184 | if (env->eflags & VM_MASK) { |
447db213 | 185 | handle_vm86_trap(env, trapnr); |
bc8a22cc FB |
186 | } else { |
187 | /* division by zero */ | |
188 | info.si_signo = SIGFPE; | |
189 | info.si_errno = 0; | |
190 | info.si_code = TARGET_FPE_INTDIV; | |
191 | info._sifields._sigfault._addr = env->eip; | |
192 | queue_signal(info.si_signo, &info); | |
193 | } | |
9de5e440 | 194 | break; |
447db213 FB |
195 | case EXCP01_SSTP: |
196 | case EXCP03_INT3: | |
197 | if (env->eflags & VM_MASK) { | |
198 | handle_vm86_trap(env, trapnr); | |
199 | } else { | |
200 | info.si_signo = SIGTRAP; | |
201 | info.si_errno = 0; | |
202 | if (trapnr == EXCP01_SSTP) { | |
203 | info.si_code = TARGET_TRAP_BRKPT; | |
204 | info._sifields._sigfault._addr = env->eip; | |
205 | } else { | |
206 | info.si_code = TARGET_SI_KERNEL; | |
207 | info._sifields._sigfault._addr = 0; | |
208 | } | |
209 | queue_signal(info.si_signo, &info); | |
210 | } | |
211 | break; | |
9de5e440 FB |
212 | case EXCP04_INTO: |
213 | case EXCP05_BOUND: | |
bc8a22cc | 214 | if (env->eflags & VM_MASK) { |
447db213 | 215 | handle_vm86_trap(env, trapnr); |
bc8a22cc FB |
216 | } else { |
217 | info.si_signo = SIGSEGV; | |
218 | info.si_errno = 0; | |
b689bc57 | 219 | info.si_code = TARGET_SI_KERNEL; |
bc8a22cc FB |
220 | info._sifields._sigfault._addr = 0; |
221 | queue_signal(info.si_signo, &info); | |
222 | } | |
9de5e440 FB |
223 | break; |
224 | case EXCP06_ILLOP: | |
225 | info.si_signo = SIGILL; | |
226 | info.si_errno = 0; | |
227 | info.si_code = TARGET_ILL_ILLOPN; | |
228 | info._sifields._sigfault._addr = env->eip; | |
229 | queue_signal(info.si_signo, &info); | |
230 | break; | |
231 | case EXCP_INTERRUPT: | |
232 | /* just indicate that signals should be handled asap */ | |
233 | break; | |
1b6b029e | 234 | default: |
970a87a6 | 235 | pc = env->segs[R_CS].base + env->eip; |
bc8a22cc FB |
236 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
237 | (long)pc, trapnr); | |
1b6b029e FB |
238 | abort(); |
239 | } | |
66fb9763 | 240 | process_pending_signals(env); |
1b6b029e FB |
241 | } |
242 | } | |
b346ff46 FB |
243 | #endif |
244 | ||
245 | #ifdef TARGET_ARM | |
246 | ||
b346ff46 FB |
247 | void cpu_loop(CPUARMState *env) |
248 | { | |
249 | int trapnr; | |
250 | unsigned int n, insn; | |
251 | target_siginfo_t info; | |
252 | ||
253 | for(;;) { | |
254 | trapnr = cpu_arm_exec(env); | |
255 | switch(trapnr) { | |
256 | case EXCP_UDEF: | |
257 | info.si_signo = SIGILL; | |
258 | info.si_errno = 0; | |
259 | info.si_code = TARGET_ILL_ILLOPN; | |
260 | info._sifields._sigfault._addr = env->regs[15]; | |
261 | queue_signal(info.si_signo, &info); | |
262 | break; | |
263 | case EXCP_SWI: | |
264 | { | |
265 | /* system call */ | |
266 | insn = ldl((void *)(env->regs[15] - 4)); | |
267 | n = insn & 0xffffff; | |
268 | if (n >= ARM_SYSCALL_BASE) { | |
269 | /* linux syscall */ | |
270 | n -= ARM_SYSCALL_BASE; | |
271 | env->regs[0] = do_syscall(env, | |
272 | n, | |
273 | env->regs[0], | |
274 | env->regs[1], | |
275 | env->regs[2], | |
276 | env->regs[3], | |
277 | env->regs[4], | |
278 | 0); | |
279 | } else { | |
280 | goto error; | |
281 | } | |
282 | } | |
283 | break; | |
43fff238 FB |
284 | case EXCP_INTERRUPT: |
285 | /* just indicate that signals should be handled asap */ | |
286 | break; | |
b346ff46 FB |
287 | default: |
288 | error: | |
289 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", | |
290 | trapnr); | |
291 | cpu_arm_dump_state(env, stderr, 0); | |
292 | abort(); | |
293 | } | |
294 | process_pending_signals(env); | |
295 | } | |
296 | } | |
297 | ||
298 | #endif | |
1b6b029e | 299 | |
93ac68bc FB |
300 | #ifdef TARGET_SPARC |
301 | ||
060366c5 FB |
302 | //#define DEBUG_WIN |
303 | ||
304 | /* WARNING: dealing with register windows _is_ complicated */ | |
305 | static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) | |
306 | { | |
307 | index = (index + cwp * 16) & (16 * NWINDOWS - 1); | |
308 | /* wrap handling : if cwp is on the last window, then we use the | |
309 | registers 'after' the end */ | |
310 | if (index < 8 && env->cwp == (NWINDOWS - 1)) | |
311 | index += (16 * NWINDOWS); | |
312 | return index; | |
313 | } | |
314 | ||
315 | static inline void save_window_offset(CPUSPARCState *env, int offset) | |
316 | { | |
317 | unsigned int new_wim, i, cwp1; | |
318 | uint32_t *sp_ptr; | |
319 | ||
320 | new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) & | |
321 | ((1LL << NWINDOWS) - 1); | |
322 | /* save the window */ | |
323 | cwp1 = (env->cwp + offset) & (NWINDOWS - 1); | |
324 | sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]); | |
325 | #if defined(DEBUG_WIN) | |
326 | printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n", | |
327 | (int)sp_ptr, cwp1); | |
328 | #endif | |
329 | for(i = 0; i < 16; i++) | |
330 | stl_raw(sp_ptr + i, env->regbase[get_reg_index(env, cwp1, 8 + i)]); | |
331 | env->wim = new_wim; | |
332 | } | |
333 | ||
334 | static void save_window(CPUSPARCState *env) | |
335 | { | |
336 | save_window_offset(env, 2); | |
337 | } | |
338 | ||
339 | static void restore_window(CPUSPARCState *env) | |
340 | { | |
341 | unsigned int new_wim, i, cwp1; | |
342 | uint32_t *sp_ptr; | |
343 | ||
344 | new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) & | |
345 | ((1LL << NWINDOWS) - 1); | |
346 | ||
347 | /* restore the invalid window */ | |
348 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
349 | sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]); | |
350 | #if defined(DEBUG_WIN) | |
351 | printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n", | |
352 | (int)sp_ptr, cwp1); | |
353 | #endif | |
354 | for(i = 0; i < 16; i++) | |
355 | env->regbase[get_reg_index(env, cwp1, 8 + i)] = ldl_raw(sp_ptr + i); | |
356 | env->wim = new_wim; | |
357 | } | |
358 | ||
359 | static void flush_windows(CPUSPARCState *env) | |
360 | { | |
361 | int offset, cwp1; | |
362 | #if defined(DEBUG_WIN) | |
363 | printf("flush_windows:\n"); | |
364 | #endif | |
365 | offset = 2; | |
366 | for(;;) { | |
367 | /* if restore would invoke restore_window(), then we can stop */ | |
368 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
369 | if (env->wim & (1 << cwp1)) | |
370 | break; | |
371 | #if defined(DEBUG_WIN) | |
372 | printf("offset=%d: ", offset); | |
373 | #endif | |
374 | save_window_offset(env, offset); | |
375 | offset++; | |
376 | } | |
377 | } | |
378 | ||
93ac68bc FB |
379 | void cpu_loop (CPUSPARCState *env) |
380 | { | |
060366c5 FB |
381 | int trapnr, ret; |
382 | ||
383 | while (1) { | |
384 | trapnr = cpu_sparc_exec (env); | |
385 | ||
386 | switch (trapnr) { | |
387 | case 0x88: | |
388 | case 0x90: | |
389 | ret = do_syscall (env, env->gregs[1], | |
390 | env->regwptr[0], env->regwptr[1], | |
391 | env->regwptr[2], env->regwptr[3], | |
392 | env->regwptr[4], env->regwptr[5]); | |
393 | if ((unsigned int)ret >= (unsigned int)(-515)) { | |
394 | env->psr |= PSR_CARRY; | |
395 | ret = -ret; | |
396 | } else { | |
397 | env->psr &= ~PSR_CARRY; | |
398 | } | |
399 | env->regwptr[0] = ret; | |
400 | /* next instruction */ | |
401 | env->pc = env->npc; | |
402 | env->npc = env->npc + 4; | |
403 | break; | |
404 | case 0x83: /* flush windows */ | |
405 | // flush_windows(env); | |
406 | /* next instruction */ | |
407 | env->pc = env->npc; | |
408 | env->npc = env->npc + 4; | |
409 | break; | |
410 | case TT_WIN_OVF: /* window overflow */ | |
411 | save_window(env); | |
412 | break; | |
413 | case TT_WIN_UNF: /* window underflow */ | |
414 | restore_window(env); | |
415 | break; | |
416 | default: | |
417 | printf ("Unhandled trap: 0x%x\n", trapnr); | |
418 | cpu_sparc_dump_state(env, stderr, 0); | |
419 | exit (1); | |
420 | } | |
421 | process_pending_signals (env); | |
422 | } | |
93ac68bc FB |
423 | } |
424 | ||
425 | #endif | |
426 | ||
67867308 FB |
427 | #ifdef TARGET_PPC |
428 | ||
429 | void cpu_loop(CPUPPCState *env) | |
430 | { | |
67867308 | 431 | target_siginfo_t info; |
61190b14 FB |
432 | int trapnr; |
433 | uint32_t ret; | |
67867308 FB |
434 | |
435 | for(;;) { | |
436 | trapnr = cpu_ppc_exec(env); | |
61190b14 FB |
437 | if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH && |
438 | trapnr != EXCP_TRACE) { | |
439 | if (loglevel > 0) { | |
440 | cpu_ppc_dump_state(env, logfile, 0); | |
441 | } | |
442 | } | |
67867308 FB |
443 | switch(trapnr) { |
444 | case EXCP_NONE: | |
67867308 | 445 | break; |
61190b14 FB |
446 | case EXCP_SYSCALL_USER: |
447 | /* system call */ | |
448 | /* WARNING: | |
449 | * PPC ABI uses overflow flag in cr0 to signal an error | |
450 | * in syscalls. | |
451 | */ | |
67867308 | 452 | #if 0 |
61190b14 FB |
453 | printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0], |
454 | env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); | |
67867308 | 455 | #endif |
61190b14 FB |
456 | env->crf[0] &= ~0x1; |
457 | ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], | |
458 | env->gpr[5], env->gpr[6], env->gpr[7], | |
459 | env->gpr[8]); | |
460 | if (ret > (uint32_t)(-515)) { | |
461 | env->crf[0] |= 0x1; | |
462 | ret = -ret; | |
463 | } | |
464 | env->gpr[3] = ret; | |
465 | #if 0 | |
466 | printf("syscall returned 0x%08x (%d)\n", ret, ret); | |
467 | #endif | |
468 | break; | |
469 | case EXCP_RESET: | |
470 | /* Should not happen ! */ | |
471 | fprintf(stderr, "RESET asked... Stop emulation\n"); | |
472 | if (loglevel) | |
473 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
67867308 | 474 | abort(); |
61190b14 FB |
475 | case EXCP_MACHINE_CHECK: |
476 | fprintf(stderr, "Machine check exeption... Stop emulation\n"); | |
477 | if (loglevel) | |
478 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
479 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 480 | info.si_errno = 0; |
61190b14 FB |
481 | info.si_code = TARGET_BUS_OBJERR; |
482 | info._sifields._sigfault._addr = env->nip - 4; | |
483 | queue_signal(info.si_signo, &info); | |
484 | case EXCP_DSI: | |
485 | fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]); | |
486 | if (loglevel) { | |
487 | fprintf(logfile, "Invalid data memory access: 0x%08x\n", | |
488 | env->spr[DAR]); | |
489 | } | |
490 | switch (env->error_code & 0xF) { | |
491 | case EXCP_DSI_TRANSLATE: | |
492 | info.si_signo = TARGET_SIGSEGV; | |
493 | info.si_errno = 0; | |
494 | info.si_code = TARGET_SEGV_MAPERR; | |
495 | break; | |
496 | case EXCP_DSI_NOTSUP: | |
497 | case EXCP_DSI_EXTERNAL: | |
498 | info.si_signo = TARGET_SIGILL; | |
499 | info.si_errno = 0; | |
500 | info.si_code = TARGET_ILL_ILLADR; | |
501 | break; | |
502 | case EXCP_DSI_PROT: | |
503 | info.si_signo = TARGET_SIGSEGV; | |
504 | info.si_errno = 0; | |
505 | info.si_code = TARGET_SEGV_ACCERR; | |
506 | break; | |
507 | case EXCP_DSI_DABR: | |
508 | info.si_signo = TARGET_SIGTRAP; | |
509 | info.si_errno = 0; | |
510 | info.si_code = TARGET_TRAP_BRKPT; | |
511 | break; | |
512 | default: | |
513 | /* Let's send a regular segfault... */ | |
514 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
515 | env->error_code); | |
516 | if (loglevel) { | |
517 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
518 | env->error_code); | |
519 | } | |
520 | info.si_signo = TARGET_SIGSEGV; | |
521 | info.si_errno = 0; | |
522 | info.si_code = TARGET_SEGV_MAPERR; | |
523 | break; | |
524 | } | |
67867308 FB |
525 | info._sifields._sigfault._addr = env->nip; |
526 | queue_signal(info.si_signo, &info); | |
527 | break; | |
61190b14 | 528 | case EXCP_ISI: |
67867308 | 529 | fprintf(stderr, "Invalid instruction fetch\n"); |
61190b14 FB |
530 | if (loglevel) |
531 | fprintf(logfile, "Invalid instruction fetch\n"); | |
532 | switch (env->error_code) { | |
533 | case EXCP_ISI_TRANSLATE: | |
534 | info.si_signo = TARGET_SIGSEGV; | |
67867308 | 535 | info.si_errno = 0; |
61190b14 FB |
536 | info.si_code = TARGET_SEGV_MAPERR; |
537 | break; | |
538 | case EXCP_ISI_GUARD: | |
539 | info.si_signo = TARGET_SIGILL; | |
540 | info.si_errno = 0; | |
541 | info.si_code = TARGET_ILL_ILLADR; | |
542 | break; | |
543 | case EXCP_ISI_NOEXEC: | |
544 | case EXCP_ISI_PROT: | |
545 | info.si_signo = TARGET_SIGSEGV; | |
546 | info.si_errno = 0; | |
547 | info.si_code = TARGET_SEGV_ACCERR; | |
548 | break; | |
549 | default: | |
550 | /* Let's send a regular segfault... */ | |
551 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
552 | env->error_code); | |
553 | if (loglevel) { | |
554 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
555 | env->error_code); | |
556 | } | |
557 | info.si_signo = TARGET_SIGSEGV; | |
558 | info.si_errno = 0; | |
559 | info.si_code = TARGET_SEGV_MAPERR; | |
560 | break; | |
561 | } | |
562 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
563 | queue_signal(info.si_signo, &info); |
564 | break; | |
61190b14 FB |
565 | case EXCP_EXTERNAL: |
566 | /* Should not happen ! */ | |
567 | fprintf(stderr, "External interruption... Stop emulation\n"); | |
568 | if (loglevel) | |
569 | fprintf(logfile, "External interruption... Stop emulation\n"); | |
67867308 | 570 | abort(); |
61190b14 FB |
571 | case EXCP_ALIGN: |
572 | fprintf(stderr, "Invalid unaligned memory access\n"); | |
573 | if (loglevel) | |
574 | fprintf(logfile, "Invalid unaligned memory access\n"); | |
575 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 576 | info.si_errno = 0; |
61190b14 FB |
577 | info.si_code = TARGET_BUS_ADRALN; |
578 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
579 | queue_signal(info.si_signo, &info); |
580 | break; | |
61190b14 FB |
581 | case EXCP_PROGRAM: |
582 | switch (env->error_code & ~0xF) { | |
583 | case EXCP_FP: | |
584 | fprintf(stderr, "Program exception\n"); | |
585 | if (loglevel) | |
586 | fprintf(logfile, "Program exception\n"); | |
587 | /* Set FX */ | |
588 | env->fpscr[7] |= 0x8; | |
589 | /* Finally, update FEX */ | |
590 | if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) & | |
591 | ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3))) | |
592 | env->fpscr[7] |= 0x4; | |
593 | info.si_signo = TARGET_SIGFPE; | |
594 | info.si_errno = 0; | |
595 | switch (env->error_code & 0xF) { | |
596 | case EXCP_FP_OX: | |
597 | info.si_code = TARGET_FPE_FLTOVF; | |
598 | break; | |
599 | case EXCP_FP_UX: | |
600 | info.si_code = TARGET_FPE_FLTUND; | |
601 | break; | |
602 | case EXCP_FP_ZX: | |
603 | case EXCP_FP_VXZDZ: | |
604 | info.si_code = TARGET_FPE_FLTDIV; | |
605 | break; | |
606 | case EXCP_FP_XX: | |
607 | info.si_code = TARGET_FPE_FLTRES; | |
608 | break; | |
609 | case EXCP_FP_VXSOFT: | |
610 | info.si_code = TARGET_FPE_FLTINV; | |
611 | break; | |
612 | case EXCP_FP_VXNAN: | |
613 | case EXCP_FP_VXISI: | |
614 | case EXCP_FP_VXIDI: | |
615 | case EXCP_FP_VXIMZ: | |
616 | case EXCP_FP_VXVC: | |
617 | case EXCP_FP_VXSQRT: | |
618 | case EXCP_FP_VXCVI: | |
619 | info.si_code = TARGET_FPE_FLTSUB; | |
620 | break; | |
621 | default: | |
622 | fprintf(stderr, "Unknown floating point exception " | |
623 | "(%02x)\n", env->error_code); | |
624 | if (loglevel) { | |
625 | fprintf(logfile, "Unknown floating point exception " | |
626 | "(%02x)\n", env->error_code & 0xF); | |
627 | } | |
628 | } | |
629 | break; | |
67867308 | 630 | case EXCP_INVAL: |
61190b14 FB |
631 | fprintf(stderr, "Invalid instruction\n"); |
632 | if (loglevel) | |
633 | fprintf(logfile, "Invalid instruction\n"); | |
634 | info.si_signo = TARGET_SIGILL; | |
635 | info.si_errno = 0; | |
636 | switch (env->error_code & 0xF) { | |
637 | case EXCP_INVAL_INVAL: | |
638 | info.si_code = TARGET_ILL_ILLOPC; | |
639 | break; | |
640 | case EXCP_INVAL_LSWX: | |
67867308 | 641 | info.si_code = TARGET_ILL_ILLOPN; |
61190b14 FB |
642 | break; |
643 | case EXCP_INVAL_SPR: | |
644 | info.si_code = TARGET_ILL_PRVREG; | |
645 | break; | |
646 | case EXCP_INVAL_FP: | |
647 | info.si_code = TARGET_ILL_COPROC; | |
648 | break; | |
649 | default: | |
650 | fprintf(stderr, "Unknown invalid operation (%02x)\n", | |
651 | env->error_code & 0xF); | |
652 | if (loglevel) { | |
653 | fprintf(logfile, "Unknown invalid operation (%02x)\n", | |
654 | env->error_code & 0xF); | |
655 | } | |
656 | info.si_code = TARGET_ILL_ILLADR; | |
657 | break; | |
658 | } | |
659 | break; | |
660 | case EXCP_PRIV: | |
661 | fprintf(stderr, "Privilege violation\n"); | |
662 | if (loglevel) | |
663 | fprintf(logfile, "Privilege violation\n"); | |
664 | info.si_signo = TARGET_SIGILL; | |
665 | info.si_errno = 0; | |
666 | switch (env->error_code & 0xF) { | |
667 | case EXCP_PRIV_OPC: | |
668 | info.si_code = TARGET_ILL_PRVOPC; | |
669 | break; | |
670 | case EXCP_PRIV_REG: | |
671 | info.si_code = TARGET_ILL_PRVREG; | |
672 | break; | |
673 | default: | |
674 | fprintf(stderr, "Unknown privilege violation (%02x)\n", | |
675 | env->error_code & 0xF); | |
676 | info.si_code = TARGET_ILL_PRVOPC; | |
677 | break; | |
678 | } | |
679 | break; | |
680 | case EXCP_TRAP: | |
681 | fprintf(stderr, "Tried to call a TRAP\n"); | |
682 | if (loglevel) | |
683 | fprintf(logfile, "Tried to call a TRAP\n"); | |
684 | abort(); | |
685 | default: | |
686 | /* Should not happen ! */ | |
687 | fprintf(stderr, "Unknown program exception (%02x)\n", | |
688 | env->error_code); | |
689 | if (loglevel) { | |
690 | fprintf(logfile, "Unknwon program exception (%02x)\n", | |
691 | env->error_code); | |
692 | } | |
693 | abort(); | |
694 | } | |
695 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
696 | queue_signal(info.si_signo, &info); |
697 | break; | |
61190b14 FB |
698 | case EXCP_NO_FP: |
699 | fprintf(stderr, "No floating point allowed\n"); | |
700 | if (loglevel) | |
701 | fprintf(logfile, "No floating point allowed\n"); | |
702 | info.si_signo = TARGET_SIGILL; | |
67867308 | 703 | info.si_errno = 0; |
61190b14 FB |
704 | info.si_code = TARGET_ILL_COPROC; |
705 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
706 | queue_signal(info.si_signo, &info); |
707 | break; | |
61190b14 FB |
708 | case EXCP_DECR: |
709 | /* Should not happen ! */ | |
710 | fprintf(stderr, "Decrementer exception\n"); | |
711 | if (loglevel) | |
712 | fprintf(logfile, "Decrementer exception\n"); | |
713 | abort(); | |
67867308 | 714 | case EXCP_RESA: /* Implementation specific */ |
61190b14 FB |
715 | /* Should not happen ! */ |
716 | fprintf(stderr, "RESA exception should never happen !\n"); | |
717 | if (loglevel) | |
718 | fprintf(logfile, "RESA exception should never happen !\n"); | |
719 | abort(); | |
67867308 | 720 | case EXCP_RESB: /* Implementation specific */ |
61190b14 FB |
721 | /* Should not happen ! */ |
722 | fprintf(stderr, "RESB exception should never happen !\n"); | |
723 | if (loglevel) | |
724 | fprintf(logfile, "RESB exception should never happen !\n"); | |
67867308 | 725 | abort(); |
61190b14 FB |
726 | case EXCP_TRACE: |
727 | /* Do nothing: we use this to trace execution */ | |
67867308 | 728 | break; |
61190b14 FB |
729 | case EXCP_FP_ASSIST: |
730 | /* Should not happen ! */ | |
731 | fprintf(stderr, "Floating point assist exception\n"); | |
732 | if (loglevel) | |
733 | fprintf(logfile, "Floating point assist exception\n"); | |
734 | abort(); | |
735 | case EXCP_MTMSR: | |
736 | /* We reloaded the msr, just go on */ | |
737 | if (msr_pr) { | |
738 | fprintf(stderr, "Tried to go into supervisor mode !\n"); | |
739 | if (loglevel) | |
740 | fprintf(logfile, "Tried to go into supervisor mode !\n"); | |
741 | abort(); | |
67867308 | 742 | } |
61190b14 FB |
743 | break; |
744 | case EXCP_BRANCH: | |
745 | /* We stopped because of a jump... */ | |
746 | break; | |
747 | case EXCP_RFI: | |
748 | /* Should not occur: we always are in user mode */ | |
749 | fprintf(stderr, "Return from interrupt ?\n"); | |
750 | if (loglevel) | |
751 | fprintf(logfile, "Return from interrupt ?\n"); | |
752 | abort(); | |
753 | case EXCP_INTERRUPT: | |
754 | /* Don't know why this should ever happen... */ | |
755 | break; | |
67867308 | 756 | default: |
67867308 FB |
757 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
758 | trapnr); | |
61190b14 FB |
759 | if (loglevel) { |
760 | fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - " | |
761 | "0x%02x - aborting\n", trapnr, env->error_code); | |
762 | } | |
67867308 FB |
763 | abort(); |
764 | } | |
61190b14 FB |
765 | if (trapnr < EXCP_PPC_MAX) |
766 | env->exceptions &= ~(1 << trapnr); | |
67867308 | 767 | process_pending_signals(env); |
61190b14 FB |
768 | if (env->exceptions != 0) { |
769 | check_exception_state(env); | |
770 | } | |
67867308 FB |
771 | } |
772 | } | |
773 | #endif | |
774 | ||
31e31b8a FB |
775 | void usage(void) |
776 | { | |
93ac68bc FB |
777 | printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n" |
778 | "usage: qemu-" TARGET_ARCH " [-h] [-d] [-L path] [-s size] program [arguments...]\n" | |
b346ff46 | 779 | "Linux CPU emulator (compiled for %s emulation)\n" |
d691f669 | 780 | "\n" |
54936004 | 781 | "-h print this help\n" |
b346ff46 FB |
782 | "-L path set the elf interpreter prefix (default=%s)\n" |
783 | "-s size set the stack size in bytes (default=%ld)\n" | |
54936004 FB |
784 | "\n" |
785 | "debug options:\n" | |
786 | "-d activate log (logfile=%s)\n" | |
787 | "-p pagesize set the host page size to 'pagesize'\n", | |
b346ff46 | 788 | TARGET_ARCH, |
d691f669 | 789 | interp_prefix, |
54936004 FB |
790 | x86_stack_size, |
791 | DEBUG_LOGFILE); | |
74cd30b8 | 792 | _exit(1); |
31e31b8a FB |
793 | } |
794 | ||
9de5e440 | 795 | /* XXX: currently only used for async signals (see signal.c) */ |
b346ff46 | 796 | CPUState *global_env; |
59faf6d6 FB |
797 | /* used only if single thread */ |
798 | CPUState *cpu_single_env = NULL; | |
799 | ||
851e67a1 FB |
800 | /* used to free thread contexts */ |
801 | TaskState *first_task_state; | |
9de5e440 | 802 | |
31e31b8a FB |
803 | int main(int argc, char **argv) |
804 | { | |
805 | const char *filename; | |
01ffc75b | 806 | struct target_pt_regs regs1, *regs = ®s1; |
31e31b8a | 807 | struct image_info info1, *info = &info1; |
851e67a1 | 808 | TaskState ts1, *ts = &ts1; |
b346ff46 | 809 | CPUState *env; |
586314f2 | 810 | int optind; |
d691f669 FB |
811 | const char *r; |
812 | ||
31e31b8a FB |
813 | if (argc <= 1) |
814 | usage(); | |
f801f97e | 815 | |
cc38b844 FB |
816 | /* init debug */ |
817 | cpu_set_log_filename(DEBUG_LOGFILE); | |
818 | ||
586314f2 | 819 | optind = 1; |
d691f669 FB |
820 | for(;;) { |
821 | if (optind >= argc) | |
822 | break; | |
823 | r = argv[optind]; | |
824 | if (r[0] != '-') | |
825 | break; | |
586314f2 | 826 | optind++; |
d691f669 FB |
827 | r++; |
828 | if (!strcmp(r, "-")) { | |
829 | break; | |
830 | } else if (!strcmp(r, "d")) { | |
cc38b844 | 831 | cpu_set_log(CPU_LOG_ALL); |
d691f669 FB |
832 | } else if (!strcmp(r, "s")) { |
833 | r = argv[optind++]; | |
834 | x86_stack_size = strtol(r, (char **)&r, 0); | |
835 | if (x86_stack_size <= 0) | |
836 | usage(); | |
837 | if (*r == 'M') | |
838 | x86_stack_size *= 1024 * 1024; | |
839 | else if (*r == 'k' || *r == 'K') | |
840 | x86_stack_size *= 1024; | |
841 | } else if (!strcmp(r, "L")) { | |
842 | interp_prefix = argv[optind++]; | |
54936004 FB |
843 | } else if (!strcmp(r, "p")) { |
844 | host_page_size = atoi(argv[optind++]); | |
845 | if (host_page_size == 0 || | |
846 | (host_page_size & (host_page_size - 1)) != 0) { | |
847 | fprintf(stderr, "page size must be a power of two\n"); | |
848 | exit(1); | |
849 | } | |
d691f669 FB |
850 | } else { |
851 | usage(); | |
852 | } | |
586314f2 | 853 | } |
d691f669 FB |
854 | if (optind >= argc) |
855 | usage(); | |
586314f2 FB |
856 | filename = argv[optind]; |
857 | ||
31e31b8a | 858 | /* Zero out regs */ |
01ffc75b | 859 | memset(regs, 0, sizeof(struct target_pt_regs)); |
31e31b8a FB |
860 | |
861 | /* Zero out image_info */ | |
862 | memset(info, 0, sizeof(struct image_info)); | |
863 | ||
74cd30b8 FB |
864 | /* Scan interp_prefix dir for replacement files. */ |
865 | init_paths(interp_prefix); | |
866 | ||
54936004 FB |
867 | /* NOTE: we need to init the CPU at this stage to get the |
868 | host_page_size */ | |
b346ff46 | 869 | env = cpu_init(); |
92ccca6a | 870 | |
74cd30b8 | 871 | if (elf_exec(filename, argv+optind, environ, regs, info) != 0) { |
31e31b8a | 872 | printf("Error loading %s\n", filename); |
74cd30b8 | 873 | _exit(1); |
31e31b8a FB |
874 | } |
875 | ||
4b74fe1f | 876 | if (loglevel) { |
54936004 FB |
877 | page_dump(logfile); |
878 | ||
4b74fe1f FB |
879 | fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk); |
880 | fprintf(logfile, "end_code 0x%08lx\n" , info->end_code); | |
881 | fprintf(logfile, "start_code 0x%08lx\n" , info->start_code); | |
882 | fprintf(logfile, "end_data 0x%08lx\n" , info->end_data); | |
883 | fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack); | |
884 | fprintf(logfile, "brk 0x%08lx\n" , info->brk); | |
b346ff46 | 885 | fprintf(logfile, "entry 0x%08lx\n" , info->entry); |
4b74fe1f | 886 | } |
31e31b8a FB |
887 | |
888 | target_set_brk((char *)info->brk); | |
889 | syscall_init(); | |
66fb9763 | 890 | signal_init(); |
31e31b8a | 891 | |
9de5e440 | 892 | global_env = env; |
0ecfa993 | 893 | |
851e67a1 FB |
894 | /* build Task State */ |
895 | memset(ts, 0, sizeof(TaskState)); | |
896 | env->opaque = ts; | |
897 | ts->used = 1; | |
59faf6d6 | 898 | env->user_mode_only = 1; |
851e67a1 | 899 | |
b346ff46 | 900 | #if defined(TARGET_I386) |
2e255c6b FB |
901 | cpu_x86_set_cpl(env, 3); |
902 | ||
3802ce26 | 903 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
75c6215f | 904 | env->hflags |= HF_PE_MASK; |
3802ce26 | 905 | |
6dbad63e | 906 | /* linux register setup */ |
0ecfa993 FB |
907 | env->regs[R_EAX] = regs->eax; |
908 | env->regs[R_EBX] = regs->ebx; | |
909 | env->regs[R_ECX] = regs->ecx; | |
910 | env->regs[R_EDX] = regs->edx; | |
911 | env->regs[R_ESI] = regs->esi; | |
912 | env->regs[R_EDI] = regs->edi; | |
913 | env->regs[R_EBP] = regs->ebp; | |
914 | env->regs[R_ESP] = regs->esp; | |
dab2ed99 | 915 | env->eip = regs->eip; |
31e31b8a | 916 | |
f4beb510 FB |
917 | /* linux interrupt setup */ |
918 | env->idt.base = (void *)idt_table; | |
919 | env->idt.limit = sizeof(idt_table) - 1; | |
920 | set_idt(0, 0); | |
921 | set_idt(1, 0); | |
922 | set_idt(2, 0); | |
923 | set_idt(3, 3); | |
924 | set_idt(4, 3); | |
925 | set_idt(5, 3); | |
926 | set_idt(6, 0); | |
927 | set_idt(7, 0); | |
928 | set_idt(8, 0); | |
929 | set_idt(9, 0); | |
930 | set_idt(10, 0); | |
931 | set_idt(11, 0); | |
932 | set_idt(12, 0); | |
933 | set_idt(13, 0); | |
934 | set_idt(14, 0); | |
935 | set_idt(15, 0); | |
936 | set_idt(16, 0); | |
937 | set_idt(17, 0); | |
938 | set_idt(18, 0); | |
939 | set_idt(19, 0); | |
940 | set_idt(0x80, 3); | |
941 | ||
6dbad63e FB |
942 | /* linux segment setup */ |
943 | env->gdt.base = (void *)gdt_table; | |
944 | env->gdt.limit = sizeof(gdt_table) - 1; | |
f4beb510 FB |
945 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
946 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
947 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); | |
948 | write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, | |
949 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
950 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); | |
6dbad63e FB |
951 | cpu_x86_load_seg(env, R_CS, __USER_CS); |
952 | cpu_x86_load_seg(env, R_DS, __USER_DS); | |
953 | cpu_x86_load_seg(env, R_ES, __USER_DS); | |
954 | cpu_x86_load_seg(env, R_SS, __USER_DS); | |
955 | cpu_x86_load_seg(env, R_FS, __USER_DS); | |
956 | cpu_x86_load_seg(env, R_GS, __USER_DS); | |
92ccca6a | 957 | |
b346ff46 FB |
958 | #elif defined(TARGET_ARM) |
959 | { | |
960 | int i; | |
961 | for(i = 0; i < 16; i++) { | |
962 | env->regs[i] = regs->uregs[i]; | |
963 | } | |
964 | env->cpsr = regs->uregs[16]; | |
965 | } | |
93ac68bc | 966 | #elif defined(TARGET_SPARC) |
060366c5 FB |
967 | { |
968 | int i; | |
969 | env->pc = regs->pc; | |
970 | env->npc = regs->npc; | |
971 | env->y = regs->y; | |
972 | for(i = 0; i < 8; i++) | |
973 | env->gregs[i] = regs->u_regs[i]; | |
974 | for(i = 0; i < 8; i++) | |
975 | env->regwptr[i] = regs->u_regs[i + 8]; | |
976 | } | |
67867308 FB |
977 | #elif defined(TARGET_PPC) |
978 | { | |
979 | int i; | |
61190b14 FB |
980 | for (i = 0; i < 32; i++) { |
981 | if (i != 12 && i != 6) | |
982 | env->msr[i] = (regs->msr >> i) & 1; | |
983 | } | |
67867308 FB |
984 | env->nip = regs->nip; |
985 | for(i = 0; i < 32; i++) { | |
986 | env->gpr[i] = regs->gpr[i]; | |
987 | } | |
988 | } | |
b346ff46 FB |
989 | #else |
990 | #error unsupported target CPU | |
991 | #endif | |
31e31b8a | 992 | |
1b6b029e FB |
993 | cpu_loop(env); |
994 | /* never exits */ | |
31e31b8a FB |
995 | return 0; |
996 | } |