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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 | |
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; |
80a9d035 | 184 | target_ulong pc; |
9de5e440 | 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; | |
1fddef4b FB |
281 | case EXCP_DEBUG: |
282 | { | |
283 | int sig; | |
284 | ||
285 | sig = gdb_handlesig (env, TARGET_SIGTRAP); | |
286 | if (sig) | |
287 | { | |
288 | info.si_signo = sig; | |
289 | info.si_errno = 0; | |
290 | info.si_code = TARGET_TRAP_BRKPT; | |
291 | queue_signal(info.si_signo, &info); | |
292 | } | |
293 | } | |
294 | break; | |
1b6b029e | 295 | default: |
970a87a6 | 296 | pc = env->segs[R_CS].base + env->eip; |
bc8a22cc FB |
297 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", |
298 | (long)pc, trapnr); | |
1b6b029e FB |
299 | abort(); |
300 | } | |
66fb9763 | 301 | process_pending_signals(env); |
1b6b029e FB |
302 | } |
303 | } | |
b346ff46 FB |
304 | #endif |
305 | ||
306 | #ifdef TARGET_ARM | |
307 | ||
6f1f31c0 FB |
308 | /* XXX: find a better solution */ |
309 | extern void tb_invalidate_page_range(target_ulong start, target_ulong end); | |
310 | ||
311 | static void arm_cache_flush(target_ulong start, target_ulong last) | |
312 | { | |
313 | target_ulong addr, last1; | |
314 | ||
315 | if (last < start) | |
316 | return; | |
317 | addr = start; | |
318 | for(;;) { | |
319 | last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1; | |
320 | if (last1 > last) | |
321 | last1 = last; | |
322 | tb_invalidate_page_range(addr, last1 + 1); | |
323 | if (last1 == last) | |
324 | break; | |
325 | addr = last1 + 1; | |
326 | } | |
327 | } | |
328 | ||
b346ff46 FB |
329 | void cpu_loop(CPUARMState *env) |
330 | { | |
331 | int trapnr; | |
332 | unsigned int n, insn; | |
333 | target_siginfo_t info; | |
334 | ||
335 | for(;;) { | |
336 | trapnr = cpu_arm_exec(env); | |
337 | switch(trapnr) { | |
338 | case EXCP_UDEF: | |
c6981055 FB |
339 | { |
340 | TaskState *ts = env->opaque; | |
341 | uint32_t opcode; | |
342 | ||
343 | /* we handle the FPU emulation here, as Linux */ | |
344 | /* we get the opcode */ | |
345 | opcode = ldl_raw((uint8_t *)env->regs[15]); | |
346 | ||
347 | if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) { | |
348 | info.si_signo = SIGILL; | |
349 | info.si_errno = 0; | |
350 | info.si_code = TARGET_ILL_ILLOPN; | |
351 | info._sifields._sigfault._addr = env->regs[15]; | |
352 | queue_signal(info.si_signo, &info); | |
353 | } else { | |
354 | /* increment PC */ | |
355 | env->regs[15] += 4; | |
356 | } | |
357 | } | |
b346ff46 FB |
358 | break; |
359 | case EXCP_SWI: | |
360 | { | |
361 | /* system call */ | |
192c7bd9 FB |
362 | if (env->thumb) { |
363 | insn = lduw((void *)(env->regs[15] - 2)); | |
364 | n = insn & 0xff; | |
365 | } else { | |
366 | insn = ldl((void *)(env->regs[15] - 4)); | |
367 | n = insn & 0xffffff; | |
368 | } | |
369 | ||
6f1f31c0 FB |
370 | if (n == ARM_NR_cacheflush) { |
371 | arm_cache_flush(env->regs[0], env->regs[1]); | |
a4f81979 FB |
372 | } else if (n == ARM_NR_semihosting |
373 | || n == ARM_NR_thumb_semihosting) { | |
374 | env->regs[0] = do_arm_semihosting (env); | |
192c7bd9 FB |
375 | } else if (n >= ARM_SYSCALL_BASE |
376 | || (env->thumb && n == ARM_THUMB_SYSCALL)) { | |
b346ff46 | 377 | /* linux syscall */ |
192c7bd9 FB |
378 | if (env->thumb) { |
379 | n = env->regs[7]; | |
380 | } else { | |
381 | n -= ARM_SYSCALL_BASE; | |
382 | } | |
b346ff46 FB |
383 | env->regs[0] = do_syscall(env, |
384 | n, | |
385 | env->regs[0], | |
386 | env->regs[1], | |
387 | env->regs[2], | |
388 | env->regs[3], | |
389 | env->regs[4], | |
e1a2849c | 390 | env->regs[5]); |
b346ff46 FB |
391 | } else { |
392 | goto error; | |
393 | } | |
394 | } | |
395 | break; | |
43fff238 FB |
396 | case EXCP_INTERRUPT: |
397 | /* just indicate that signals should be handled asap */ | |
398 | break; | |
68016c62 FB |
399 | case EXCP_PREFETCH_ABORT: |
400 | case EXCP_DATA_ABORT: | |
401 | { | |
402 | info.si_signo = SIGSEGV; | |
403 | info.si_errno = 0; | |
404 | /* XXX: check env->error_code */ | |
405 | info.si_code = TARGET_SEGV_MAPERR; | |
406 | info._sifields._sigfault._addr = env->cp15_6; | |
407 | queue_signal(info.si_signo, &info); | |
408 | } | |
409 | break; | |
1fddef4b FB |
410 | case EXCP_DEBUG: |
411 | { | |
412 | int sig; | |
413 | ||
414 | sig = gdb_handlesig (env, TARGET_SIGTRAP); | |
415 | if (sig) | |
416 | { | |
417 | info.si_signo = sig; | |
418 | info.si_errno = 0; | |
419 | info.si_code = TARGET_TRAP_BRKPT; | |
420 | queue_signal(info.si_signo, &info); | |
421 | } | |
422 | } | |
423 | break; | |
b346ff46 FB |
424 | default: |
425 | error: | |
426 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", | |
427 | trapnr); | |
7fe48483 | 428 | cpu_dump_state(env, stderr, fprintf, 0); |
b346ff46 FB |
429 | abort(); |
430 | } | |
431 | process_pending_signals(env); | |
432 | } | |
433 | } | |
434 | ||
435 | #endif | |
1b6b029e | 436 | |
93ac68bc FB |
437 | #ifdef TARGET_SPARC |
438 | ||
060366c5 FB |
439 | //#define DEBUG_WIN |
440 | ||
2623cbaf FB |
441 | /* WARNING: dealing with register windows _is_ complicated. More info |
442 | can be found at http://www.sics.se/~psm/sparcstack.html */ | |
060366c5 FB |
443 | static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
444 | { | |
445 | index = (index + cwp * 16) & (16 * NWINDOWS - 1); | |
446 | /* wrap handling : if cwp is on the last window, then we use the | |
447 | registers 'after' the end */ | |
448 | if (index < 8 && env->cwp == (NWINDOWS - 1)) | |
449 | index += (16 * NWINDOWS); | |
450 | return index; | |
451 | } | |
452 | ||
2623cbaf FB |
453 | /* save the register window 'cwp1' */ |
454 | static inline void save_window_offset(CPUSPARCState *env, int cwp1) | |
060366c5 | 455 | { |
2623cbaf | 456 | unsigned int i; |
060366c5 FB |
457 | uint32_t *sp_ptr; |
458 | ||
060366c5 FB |
459 | sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]); |
460 | #if defined(DEBUG_WIN) | |
461 | printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n", | |
462 | (int)sp_ptr, cwp1); | |
463 | #endif | |
2623cbaf FB |
464 | for(i = 0; i < 16; i++) { |
465 | put_user(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr); | |
466 | sp_ptr++; | |
467 | } | |
060366c5 FB |
468 | } |
469 | ||
470 | static void save_window(CPUSPARCState *env) | |
471 | { | |
2623cbaf FB |
472 | unsigned int new_wim; |
473 | new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) & | |
474 | ((1LL << NWINDOWS) - 1); | |
475 | save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1)); | |
476 | env->wim = new_wim; | |
060366c5 FB |
477 | } |
478 | ||
479 | static void restore_window(CPUSPARCState *env) | |
480 | { | |
481 | unsigned int new_wim, i, cwp1; | |
2623cbaf | 482 | uint32_t *sp_ptr, reg; |
060366c5 FB |
483 | |
484 | new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) & | |
485 | ((1LL << NWINDOWS) - 1); | |
486 | ||
487 | /* restore the invalid window */ | |
488 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
489 | sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]); | |
490 | #if defined(DEBUG_WIN) | |
491 | printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n", | |
492 | (int)sp_ptr, cwp1); | |
493 | #endif | |
2623cbaf FB |
494 | for(i = 0; i < 16; i++) { |
495 | get_user(reg, sp_ptr); | |
496 | env->regbase[get_reg_index(env, cwp1, 8 + i)] = reg; | |
497 | sp_ptr++; | |
498 | } | |
060366c5 FB |
499 | env->wim = new_wim; |
500 | } | |
501 | ||
502 | static void flush_windows(CPUSPARCState *env) | |
503 | { | |
504 | int offset, cwp1; | |
2623cbaf FB |
505 | |
506 | offset = 1; | |
060366c5 FB |
507 | for(;;) { |
508 | /* if restore would invoke restore_window(), then we can stop */ | |
2623cbaf | 509 | cwp1 = (env->cwp + offset) & (NWINDOWS - 1); |
060366c5 FB |
510 | if (env->wim & (1 << cwp1)) |
511 | break; | |
2623cbaf | 512 | save_window_offset(env, cwp1); |
060366c5 FB |
513 | offset++; |
514 | } | |
2623cbaf FB |
515 | /* set wim so that restore will reload the registers */ |
516 | cwp1 = (env->cwp + 1) & (NWINDOWS - 1); | |
517 | env->wim = 1 << cwp1; | |
518 | #if defined(DEBUG_WIN) | |
519 | printf("flush_windows: nb=%d\n", offset - 1); | |
80a9d035 | 520 | #endif |
2623cbaf | 521 | } |
060366c5 | 522 | |
93ac68bc FB |
523 | void cpu_loop (CPUSPARCState *env) |
524 | { | |
060366c5 | 525 | int trapnr, ret; |
61ff6f58 | 526 | target_siginfo_t info; |
060366c5 FB |
527 | |
528 | while (1) { | |
529 | trapnr = cpu_sparc_exec (env); | |
530 | ||
531 | switch (trapnr) { | |
532 | case 0x88: | |
533 | case 0x90: | |
534 | ret = do_syscall (env, env->gregs[1], | |
535 | env->regwptr[0], env->regwptr[1], | |
536 | env->regwptr[2], env->regwptr[3], | |
537 | env->regwptr[4], env->regwptr[5]); | |
538 | if ((unsigned int)ret >= (unsigned int)(-515)) { | |
539 | env->psr |= PSR_CARRY; | |
540 | ret = -ret; | |
541 | } else { | |
542 | env->psr &= ~PSR_CARRY; | |
543 | } | |
544 | env->regwptr[0] = ret; | |
545 | /* next instruction */ | |
546 | env->pc = env->npc; | |
547 | env->npc = env->npc + 4; | |
548 | break; | |
549 | case 0x83: /* flush windows */ | |
2623cbaf | 550 | flush_windows(env); |
060366c5 FB |
551 | /* next instruction */ |
552 | env->pc = env->npc; | |
553 | env->npc = env->npc + 4; | |
554 | break; | |
3475187d | 555 | #ifndef TARGET_SPARC64 |
060366c5 FB |
556 | case TT_WIN_OVF: /* window overflow */ |
557 | save_window(env); | |
558 | break; | |
559 | case TT_WIN_UNF: /* window underflow */ | |
560 | restore_window(env); | |
561 | break; | |
61ff6f58 FB |
562 | case TT_TFAULT: |
563 | case TT_DFAULT: | |
564 | { | |
565 | info.si_signo = SIGSEGV; | |
566 | info.si_errno = 0; | |
567 | /* XXX: check env->error_code */ | |
568 | info.si_code = TARGET_SEGV_MAPERR; | |
569 | info._sifields._sigfault._addr = env->mmuregs[4]; | |
570 | queue_signal(info.si_signo, &info); | |
571 | } | |
572 | break; | |
3475187d FB |
573 | #else |
574 | // XXX | |
575 | #endif | |
e80cfcfc FB |
576 | case 0x100: // XXX, why do we get these? |
577 | break; | |
1fddef4b FB |
578 | case EXCP_DEBUG: |
579 | { | |
580 | int sig; | |
581 | ||
582 | sig = gdb_handlesig (env, TARGET_SIGTRAP); | |
583 | if (sig) | |
584 | { | |
585 | info.si_signo = sig; | |
586 | info.si_errno = 0; | |
587 | info.si_code = TARGET_TRAP_BRKPT; | |
588 | queue_signal(info.si_signo, &info); | |
589 | } | |
590 | } | |
591 | break; | |
060366c5 FB |
592 | default: |
593 | printf ("Unhandled trap: 0x%x\n", trapnr); | |
7fe48483 | 594 | cpu_dump_state(env, stderr, fprintf, 0); |
060366c5 FB |
595 | exit (1); |
596 | } | |
597 | process_pending_signals (env); | |
598 | } | |
93ac68bc FB |
599 | } |
600 | ||
601 | #endif | |
602 | ||
67867308 | 603 | #ifdef TARGET_PPC |
9fddaa0c FB |
604 | |
605 | static inline uint64_t cpu_ppc_get_tb (CPUState *env) | |
606 | { | |
607 | /* TO FIX */ | |
608 | return 0; | |
609 | } | |
610 | ||
611 | uint32_t cpu_ppc_load_tbl (CPUState *env) | |
612 | { | |
613 | return cpu_ppc_get_tb(env) & 0xFFFFFFFF; | |
614 | } | |
615 | ||
616 | uint32_t cpu_ppc_load_tbu (CPUState *env) | |
617 | { | |
618 | return cpu_ppc_get_tb(env) >> 32; | |
619 | } | |
620 | ||
621 | static void cpu_ppc_store_tb (CPUState *env, uint64_t value) | |
622 | { | |
623 | /* TO FIX */ | |
624 | } | |
625 | ||
626 | void cpu_ppc_store_tbu (CPUState *env, uint32_t value) | |
627 | { | |
628 | cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env)); | |
629 | } | |
630 | ||
631 | void cpu_ppc_store_tbl (CPUState *env, uint32_t value) | |
632 | { | |
633 | cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value); | |
634 | } | |
635 | ||
636 | uint32_t cpu_ppc_load_decr (CPUState *env) | |
637 | { | |
638 | /* TO FIX */ | |
639 | return -1; | |
640 | } | |
641 | ||
642 | void cpu_ppc_store_decr (CPUState *env, uint32_t value) | |
643 | { | |
644 | /* TO FIX */ | |
645 | } | |
646 | ||
67867308 FB |
647 | void cpu_loop(CPUPPCState *env) |
648 | { | |
67867308 | 649 | target_siginfo_t info; |
61190b14 FB |
650 | int trapnr; |
651 | uint32_t ret; | |
67867308 FB |
652 | |
653 | for(;;) { | |
654 | trapnr = cpu_ppc_exec(env); | |
61190b14 FB |
655 | if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH && |
656 | trapnr != EXCP_TRACE) { | |
657 | if (loglevel > 0) { | |
7fe48483 | 658 | cpu_dump_state(env, logfile, fprintf, 0); |
61190b14 FB |
659 | } |
660 | } | |
67867308 FB |
661 | switch(trapnr) { |
662 | case EXCP_NONE: | |
67867308 | 663 | break; |
61190b14 FB |
664 | case EXCP_SYSCALL_USER: |
665 | /* system call */ | |
666 | /* WARNING: | |
667 | * PPC ABI uses overflow flag in cr0 to signal an error | |
668 | * in syscalls. | |
669 | */ | |
67867308 | 670 | #if 0 |
61190b14 FB |
671 | printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0], |
672 | env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]); | |
67867308 | 673 | #endif |
61190b14 FB |
674 | env->crf[0] &= ~0x1; |
675 | ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], | |
676 | env->gpr[5], env->gpr[6], env->gpr[7], | |
677 | env->gpr[8]); | |
678 | if (ret > (uint32_t)(-515)) { | |
679 | env->crf[0] |= 0x1; | |
680 | ret = -ret; | |
681 | } | |
682 | env->gpr[3] = ret; | |
683 | #if 0 | |
684 | printf("syscall returned 0x%08x (%d)\n", ret, ret); | |
685 | #endif | |
686 | break; | |
687 | case EXCP_RESET: | |
688 | /* Should not happen ! */ | |
689 | fprintf(stderr, "RESET asked... Stop emulation\n"); | |
690 | if (loglevel) | |
691 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
67867308 | 692 | abort(); |
61190b14 FB |
693 | case EXCP_MACHINE_CHECK: |
694 | fprintf(stderr, "Machine check exeption... Stop emulation\n"); | |
695 | if (loglevel) | |
696 | fprintf(logfile, "RESET asked... Stop emulation\n"); | |
697 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 698 | info.si_errno = 0; |
61190b14 FB |
699 | info.si_code = TARGET_BUS_OBJERR; |
700 | info._sifields._sigfault._addr = env->nip - 4; | |
701 | queue_signal(info.si_signo, &info); | |
702 | case EXCP_DSI: | |
3fc6c082 FB |
703 | fprintf(stderr, "Invalid data memory access: 0x%08x\n", |
704 | env->spr[SPR_DAR]); | |
61190b14 FB |
705 | if (loglevel) { |
706 | fprintf(logfile, "Invalid data memory access: 0x%08x\n", | |
3fc6c082 | 707 | env->spr[SPR_DAR]); |
61190b14 | 708 | } |
2be0071f FB |
709 | switch (env->error_code & 0xFF000000) { |
710 | case 0x40000000: | |
61190b14 FB |
711 | info.si_signo = TARGET_SIGSEGV; |
712 | info.si_errno = 0; | |
713 | info.si_code = TARGET_SEGV_MAPERR; | |
714 | break; | |
2be0071f | 715 | case 0x04000000: |
61190b14 FB |
716 | info.si_signo = TARGET_SIGILL; |
717 | info.si_errno = 0; | |
718 | info.si_code = TARGET_ILL_ILLADR; | |
719 | break; | |
2be0071f | 720 | case 0x08000000: |
61190b14 FB |
721 | info.si_signo = TARGET_SIGSEGV; |
722 | info.si_errno = 0; | |
723 | info.si_code = TARGET_SEGV_ACCERR; | |
724 | break; | |
61190b14 FB |
725 | default: |
726 | /* Let's send a regular segfault... */ | |
727 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
728 | env->error_code); | |
729 | if (loglevel) { | |
730 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
731 | env->error_code); | |
732 | } | |
733 | info.si_signo = TARGET_SIGSEGV; | |
734 | info.si_errno = 0; | |
735 | info.si_code = TARGET_SEGV_MAPERR; | |
736 | break; | |
737 | } | |
67867308 FB |
738 | info._sifields._sigfault._addr = env->nip; |
739 | queue_signal(info.si_signo, &info); | |
740 | break; | |
61190b14 | 741 | case EXCP_ISI: |
67867308 | 742 | fprintf(stderr, "Invalid instruction fetch\n"); |
61190b14 FB |
743 | if (loglevel) |
744 | fprintf(logfile, "Invalid instruction fetch\n"); | |
2be0071f FB |
745 | switch (env->error_code & 0xFF000000) { |
746 | case 0x40000000: | |
61190b14 | 747 | info.si_signo = TARGET_SIGSEGV; |
67867308 | 748 | info.si_errno = 0; |
61190b14 FB |
749 | info.si_code = TARGET_SEGV_MAPERR; |
750 | break; | |
2be0071f FB |
751 | case 0x10000000: |
752 | case 0x08000000: | |
61190b14 FB |
753 | info.si_signo = TARGET_SIGSEGV; |
754 | info.si_errno = 0; | |
755 | info.si_code = TARGET_SEGV_ACCERR; | |
756 | break; | |
757 | default: | |
758 | /* Let's send a regular segfault... */ | |
759 | fprintf(stderr, "Invalid segfault errno (%02x)\n", | |
760 | env->error_code); | |
761 | if (loglevel) { | |
762 | fprintf(logfile, "Invalid segfault errno (%02x)\n", | |
763 | env->error_code); | |
764 | } | |
765 | info.si_signo = TARGET_SIGSEGV; | |
766 | info.si_errno = 0; | |
767 | info.si_code = TARGET_SEGV_MAPERR; | |
768 | break; | |
769 | } | |
770 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
771 | queue_signal(info.si_signo, &info); |
772 | break; | |
61190b14 FB |
773 | case EXCP_EXTERNAL: |
774 | /* Should not happen ! */ | |
775 | fprintf(stderr, "External interruption... Stop emulation\n"); | |
776 | if (loglevel) | |
777 | fprintf(logfile, "External interruption... Stop emulation\n"); | |
67867308 | 778 | abort(); |
61190b14 FB |
779 | case EXCP_ALIGN: |
780 | fprintf(stderr, "Invalid unaligned memory access\n"); | |
781 | if (loglevel) | |
782 | fprintf(logfile, "Invalid unaligned memory access\n"); | |
783 | info.si_signo = TARGET_SIGBUS; | |
67867308 | 784 | info.si_errno = 0; |
61190b14 FB |
785 | info.si_code = TARGET_BUS_ADRALN; |
786 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
787 | queue_signal(info.si_signo, &info); |
788 | break; | |
61190b14 FB |
789 | case EXCP_PROGRAM: |
790 | switch (env->error_code & ~0xF) { | |
791 | case EXCP_FP: | |
792 | fprintf(stderr, "Program exception\n"); | |
793 | if (loglevel) | |
794 | fprintf(logfile, "Program exception\n"); | |
795 | /* Set FX */ | |
796 | env->fpscr[7] |= 0x8; | |
797 | /* Finally, update FEX */ | |
798 | if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) & | |
799 | ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3))) | |
800 | env->fpscr[7] |= 0x4; | |
801 | info.si_signo = TARGET_SIGFPE; | |
802 | info.si_errno = 0; | |
803 | switch (env->error_code & 0xF) { | |
804 | case EXCP_FP_OX: | |
805 | info.si_code = TARGET_FPE_FLTOVF; | |
806 | break; | |
807 | case EXCP_FP_UX: | |
808 | info.si_code = TARGET_FPE_FLTUND; | |
809 | break; | |
810 | case EXCP_FP_ZX: | |
811 | case EXCP_FP_VXZDZ: | |
812 | info.si_code = TARGET_FPE_FLTDIV; | |
813 | break; | |
814 | case EXCP_FP_XX: | |
815 | info.si_code = TARGET_FPE_FLTRES; | |
816 | break; | |
817 | case EXCP_FP_VXSOFT: | |
818 | info.si_code = TARGET_FPE_FLTINV; | |
819 | break; | |
820 | case EXCP_FP_VXNAN: | |
821 | case EXCP_FP_VXISI: | |
822 | case EXCP_FP_VXIDI: | |
823 | case EXCP_FP_VXIMZ: | |
824 | case EXCP_FP_VXVC: | |
825 | case EXCP_FP_VXSQRT: | |
826 | case EXCP_FP_VXCVI: | |
827 | info.si_code = TARGET_FPE_FLTSUB; | |
828 | break; | |
829 | default: | |
830 | fprintf(stderr, "Unknown floating point exception " | |
831 | "(%02x)\n", env->error_code); | |
832 | if (loglevel) { | |
833 | fprintf(logfile, "Unknown floating point exception " | |
834 | "(%02x)\n", env->error_code & 0xF); | |
835 | } | |
836 | } | |
837 | break; | |
67867308 | 838 | case EXCP_INVAL: |
61190b14 FB |
839 | fprintf(stderr, "Invalid instruction\n"); |
840 | if (loglevel) | |
841 | fprintf(logfile, "Invalid instruction\n"); | |
842 | info.si_signo = TARGET_SIGILL; | |
843 | info.si_errno = 0; | |
844 | switch (env->error_code & 0xF) { | |
845 | case EXCP_INVAL_INVAL: | |
846 | info.si_code = TARGET_ILL_ILLOPC; | |
847 | break; | |
848 | case EXCP_INVAL_LSWX: | |
67867308 | 849 | info.si_code = TARGET_ILL_ILLOPN; |
61190b14 FB |
850 | break; |
851 | case EXCP_INVAL_SPR: | |
852 | info.si_code = TARGET_ILL_PRVREG; | |
853 | break; | |
854 | case EXCP_INVAL_FP: | |
855 | info.si_code = TARGET_ILL_COPROC; | |
856 | break; | |
857 | default: | |
858 | fprintf(stderr, "Unknown invalid operation (%02x)\n", | |
859 | env->error_code & 0xF); | |
860 | if (loglevel) { | |
861 | fprintf(logfile, "Unknown invalid operation (%02x)\n", | |
862 | env->error_code & 0xF); | |
863 | } | |
864 | info.si_code = TARGET_ILL_ILLADR; | |
865 | break; | |
866 | } | |
867 | break; | |
868 | case EXCP_PRIV: | |
869 | fprintf(stderr, "Privilege violation\n"); | |
870 | if (loglevel) | |
871 | fprintf(logfile, "Privilege violation\n"); | |
872 | info.si_signo = TARGET_SIGILL; | |
873 | info.si_errno = 0; | |
874 | switch (env->error_code & 0xF) { | |
875 | case EXCP_PRIV_OPC: | |
876 | info.si_code = TARGET_ILL_PRVOPC; | |
877 | break; | |
878 | case EXCP_PRIV_REG: | |
879 | info.si_code = TARGET_ILL_PRVREG; | |
880 | break; | |
881 | default: | |
882 | fprintf(stderr, "Unknown privilege violation (%02x)\n", | |
883 | env->error_code & 0xF); | |
884 | info.si_code = TARGET_ILL_PRVOPC; | |
885 | break; | |
886 | } | |
887 | break; | |
888 | case EXCP_TRAP: | |
889 | fprintf(stderr, "Tried to call a TRAP\n"); | |
890 | if (loglevel) | |
891 | fprintf(logfile, "Tried to call a TRAP\n"); | |
892 | abort(); | |
893 | default: | |
894 | /* Should not happen ! */ | |
895 | fprintf(stderr, "Unknown program exception (%02x)\n", | |
896 | env->error_code); | |
897 | if (loglevel) { | |
898 | fprintf(logfile, "Unknwon program exception (%02x)\n", | |
899 | env->error_code); | |
900 | } | |
901 | abort(); | |
902 | } | |
903 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
904 | queue_signal(info.si_signo, &info); |
905 | break; | |
61190b14 FB |
906 | case EXCP_NO_FP: |
907 | fprintf(stderr, "No floating point allowed\n"); | |
908 | if (loglevel) | |
909 | fprintf(logfile, "No floating point allowed\n"); | |
910 | info.si_signo = TARGET_SIGILL; | |
67867308 | 911 | info.si_errno = 0; |
61190b14 FB |
912 | info.si_code = TARGET_ILL_COPROC; |
913 | info._sifields._sigfault._addr = env->nip - 4; | |
67867308 FB |
914 | queue_signal(info.si_signo, &info); |
915 | break; | |
61190b14 FB |
916 | case EXCP_DECR: |
917 | /* Should not happen ! */ | |
918 | fprintf(stderr, "Decrementer exception\n"); | |
919 | if (loglevel) | |
920 | fprintf(logfile, "Decrementer exception\n"); | |
921 | abort(); | |
61190b14 FB |
922 | case EXCP_TRACE: |
923 | /* Do nothing: we use this to trace execution */ | |
67867308 | 924 | break; |
61190b14 FB |
925 | case EXCP_FP_ASSIST: |
926 | /* Should not happen ! */ | |
927 | fprintf(stderr, "Floating point assist exception\n"); | |
928 | if (loglevel) | |
929 | fprintf(logfile, "Floating point assist exception\n"); | |
930 | abort(); | |
931 | case EXCP_MTMSR: | |
932 | /* We reloaded the msr, just go on */ | |
9fddaa0c | 933 | if (msr_pr == 0) { |
61190b14 FB |
934 | fprintf(stderr, "Tried to go into supervisor mode !\n"); |
935 | if (loglevel) | |
936 | fprintf(logfile, "Tried to go into supervisor mode !\n"); | |
937 | abort(); | |
67867308 | 938 | } |
61190b14 FB |
939 | break; |
940 | case EXCP_BRANCH: | |
941 | /* We stopped because of a jump... */ | |
942 | break; | |
61190b14 FB |
943 | case EXCP_INTERRUPT: |
944 | /* Don't know why this should ever happen... */ | |
945 | break; | |
1fddef4b FB |
946 | case EXCP_DEBUG: |
947 | { | |
948 | int sig; | |
949 | ||
950 | sig = gdb_handlesig (env, TARGET_SIGTRAP); | |
951 | if (sig) | |
952 | { | |
953 | info.si_signo = sig; | |
954 | info.si_errno = 0; | |
955 | info.si_code = TARGET_TRAP_BRKPT; | |
956 | queue_signal(info.si_signo, &info); | |
957 | } | |
958 | } | |
959 | break; | |
67867308 | 960 | default: |
67867308 FB |
961 | fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", |
962 | trapnr); | |
61190b14 FB |
963 | if (loglevel) { |
964 | fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - " | |
965 | "0x%02x - aborting\n", trapnr, env->error_code); | |
966 | } | |
67867308 FB |
967 | abort(); |
968 | } | |
969 | process_pending_signals(env); | |
970 | } | |
971 | } | |
972 | #endif | |
973 | ||
31e31b8a FB |
974 | void usage(void) |
975 | { | |
f5a8510c | 976 | printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n" |
1fddef4b | 977 | "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n" |
b346ff46 | 978 | "Linux CPU emulator (compiled for %s emulation)\n" |
d691f669 | 979 | "\n" |
54936004 | 980 | "-h print this help\n" |
1fddef4b | 981 | "-g wait gdb connection to port %d\n" |
b346ff46 FB |
982 | "-L path set the elf interpreter prefix (default=%s)\n" |
983 | "-s size set the stack size in bytes (default=%ld)\n" | |
54936004 FB |
984 | "\n" |
985 | "debug options:\n" | |
c6981055 FB |
986 | #ifdef USE_CODE_COPY |
987 | "-no-code-copy disable code copy acceleration\n" | |
988 | #endif | |
6f1f31c0 | 989 | "-d options activate log (logfile=%s)\n" |
54936004 | 990 | "-p pagesize set the host page size to 'pagesize'\n", |
b346ff46 | 991 | TARGET_ARCH, |
1fddef4b | 992 | DEFAULT_GDBSTUB_PORT, |
d691f669 | 993 | interp_prefix, |
54936004 FB |
994 | x86_stack_size, |
995 | DEBUG_LOGFILE); | |
74cd30b8 | 996 | _exit(1); |
31e31b8a FB |
997 | } |
998 | ||
9de5e440 | 999 | /* XXX: currently only used for async signals (see signal.c) */ |
b346ff46 | 1000 | CPUState *global_env; |
59faf6d6 FB |
1001 | /* used only if single thread */ |
1002 | CPUState *cpu_single_env = NULL; | |
1003 | ||
851e67a1 FB |
1004 | /* used to free thread contexts */ |
1005 | TaskState *first_task_state; | |
9de5e440 | 1006 | |
31e31b8a FB |
1007 | int main(int argc, char **argv) |
1008 | { | |
1009 | const char *filename; | |
01ffc75b | 1010 | struct target_pt_regs regs1, *regs = ®s1; |
31e31b8a | 1011 | struct image_info info1, *info = &info1; |
851e67a1 | 1012 | TaskState ts1, *ts = &ts1; |
b346ff46 | 1013 | CPUState *env; |
586314f2 | 1014 | int optind; |
d691f669 | 1015 | const char *r; |
1fddef4b | 1016 | int use_gdbstub = 0; |
d691f669 | 1017 | |
31e31b8a FB |
1018 | if (argc <= 1) |
1019 | usage(); | |
f801f97e | 1020 | |
cc38b844 FB |
1021 | /* init debug */ |
1022 | cpu_set_log_filename(DEBUG_LOGFILE); | |
1023 | ||
586314f2 | 1024 | optind = 1; |
d691f669 FB |
1025 | for(;;) { |
1026 | if (optind >= argc) | |
1027 | break; | |
1028 | r = argv[optind]; | |
1029 | if (r[0] != '-') | |
1030 | break; | |
586314f2 | 1031 | optind++; |
d691f669 FB |
1032 | r++; |
1033 | if (!strcmp(r, "-")) { | |
1034 | break; | |
1035 | } else if (!strcmp(r, "d")) { | |
e19e89a5 FB |
1036 | int mask; |
1037 | CPULogItem *item; | |
6f1f31c0 FB |
1038 | |
1039 | if (optind >= argc) | |
1040 | break; | |
e19e89a5 | 1041 | |
6f1f31c0 FB |
1042 | r = argv[optind++]; |
1043 | mask = cpu_str_to_log_mask(r); | |
e19e89a5 FB |
1044 | if (!mask) { |
1045 | printf("Log items (comma separated):\n"); | |
1046 | for(item = cpu_log_items; item->mask != 0; item++) { | |
1047 | printf("%-10s %s\n", item->name, item->help); | |
1048 | } | |
1049 | exit(1); | |
1050 | } | |
1051 | cpu_set_log(mask); | |
d691f669 FB |
1052 | } else if (!strcmp(r, "s")) { |
1053 | r = argv[optind++]; | |
1054 | x86_stack_size = strtol(r, (char **)&r, 0); | |
1055 | if (x86_stack_size <= 0) | |
1056 | usage(); | |
1057 | if (*r == 'M') | |
1058 | x86_stack_size *= 1024 * 1024; | |
1059 | else if (*r == 'k' || *r == 'K') | |
1060 | x86_stack_size *= 1024; | |
1061 | } else if (!strcmp(r, "L")) { | |
1062 | interp_prefix = argv[optind++]; | |
54936004 | 1063 | } else if (!strcmp(r, "p")) { |
83fb7adf FB |
1064 | qemu_host_page_size = atoi(argv[optind++]); |
1065 | if (qemu_host_page_size == 0 || | |
1066 | (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { | |
54936004 FB |
1067 | fprintf(stderr, "page size must be a power of two\n"); |
1068 | exit(1); | |
1069 | } | |
1fddef4b FB |
1070 | } else if (!strcmp(r, "g")) { |
1071 | use_gdbstub = 1; | |
c6981055 FB |
1072 | } else |
1073 | #ifdef USE_CODE_COPY | |
1074 | if (!strcmp(r, "no-code-copy")) { | |
1075 | code_copy_enabled = 0; | |
1076 | } else | |
1077 | #endif | |
1078 | { | |
d691f669 FB |
1079 | usage(); |
1080 | } | |
586314f2 | 1081 | } |
d691f669 FB |
1082 | if (optind >= argc) |
1083 | usage(); | |
586314f2 FB |
1084 | filename = argv[optind]; |
1085 | ||
31e31b8a | 1086 | /* Zero out regs */ |
01ffc75b | 1087 | memset(regs, 0, sizeof(struct target_pt_regs)); |
31e31b8a FB |
1088 | |
1089 | /* Zero out image_info */ | |
1090 | memset(info, 0, sizeof(struct image_info)); | |
1091 | ||
74cd30b8 FB |
1092 | /* Scan interp_prefix dir for replacement files. */ |
1093 | init_paths(interp_prefix); | |
1094 | ||
83fb7adf FB |
1095 | /* NOTE: we need to init the CPU at this stage to get |
1096 | qemu_host_page_size */ | |
b346ff46 | 1097 | env = cpu_init(); |
92ccca6a | 1098 | |
74cd30b8 | 1099 | if (elf_exec(filename, argv+optind, environ, regs, info) != 0) { |
31e31b8a | 1100 | printf("Error loading %s\n", filename); |
74cd30b8 | 1101 | _exit(1); |
31e31b8a FB |
1102 | } |
1103 | ||
4b74fe1f | 1104 | if (loglevel) { |
54936004 FB |
1105 | page_dump(logfile); |
1106 | ||
4b74fe1f FB |
1107 | fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk); |
1108 | fprintf(logfile, "end_code 0x%08lx\n" , info->end_code); | |
1109 | fprintf(logfile, "start_code 0x%08lx\n" , info->start_code); | |
1110 | fprintf(logfile, "end_data 0x%08lx\n" , info->end_data); | |
1111 | fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack); | |
1112 | fprintf(logfile, "brk 0x%08lx\n" , info->brk); | |
b346ff46 | 1113 | fprintf(logfile, "entry 0x%08lx\n" , info->entry); |
4b74fe1f | 1114 | } |
31e31b8a FB |
1115 | |
1116 | target_set_brk((char *)info->brk); | |
1117 | syscall_init(); | |
66fb9763 | 1118 | signal_init(); |
31e31b8a | 1119 | |
9de5e440 | 1120 | global_env = env; |
0ecfa993 | 1121 | |
851e67a1 FB |
1122 | /* build Task State */ |
1123 | memset(ts, 0, sizeof(TaskState)); | |
1124 | env->opaque = ts; | |
1125 | ts->used = 1; | |
59faf6d6 | 1126 | env->user_mode_only = 1; |
851e67a1 | 1127 | |
b346ff46 | 1128 | #if defined(TARGET_I386) |
2e255c6b FB |
1129 | cpu_x86_set_cpl(env, 3); |
1130 | ||
3802ce26 | 1131 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; |
1bde465e FB |
1132 | env->hflags |= HF_PE_MASK; |
1133 | if (env->cpuid_features & CPUID_SSE) { | |
1134 | env->cr[4] |= CR4_OSFXSR_MASK; | |
1135 | env->hflags |= HF_OSFXSR_MASK; | |
1136 | } | |
1137 | ||
415e561f FB |
1138 | /* flags setup : we activate the IRQs by default as in user mode */ |
1139 | env->eflags |= IF_MASK; | |
1140 | ||
6dbad63e | 1141 | /* linux register setup */ |
0ecfa993 FB |
1142 | env->regs[R_EAX] = regs->eax; |
1143 | env->regs[R_EBX] = regs->ebx; | |
1144 | env->regs[R_ECX] = regs->ecx; | |
1145 | env->regs[R_EDX] = regs->edx; | |
1146 | env->regs[R_ESI] = regs->esi; | |
1147 | env->regs[R_EDI] = regs->edi; | |
1148 | env->regs[R_EBP] = regs->ebp; | |
1149 | env->regs[R_ESP] = regs->esp; | |
dab2ed99 | 1150 | env->eip = regs->eip; |
31e31b8a | 1151 | |
f4beb510 | 1152 | /* linux interrupt setup */ |
80a9d035 | 1153 | env->idt.base = (long)idt_table; |
f4beb510 FB |
1154 | env->idt.limit = sizeof(idt_table) - 1; |
1155 | set_idt(0, 0); | |
1156 | set_idt(1, 0); | |
1157 | set_idt(2, 0); | |
1158 | set_idt(3, 3); | |
1159 | set_idt(4, 3); | |
1160 | set_idt(5, 3); | |
1161 | set_idt(6, 0); | |
1162 | set_idt(7, 0); | |
1163 | set_idt(8, 0); | |
1164 | set_idt(9, 0); | |
1165 | set_idt(10, 0); | |
1166 | set_idt(11, 0); | |
1167 | set_idt(12, 0); | |
1168 | set_idt(13, 0); | |
1169 | set_idt(14, 0); | |
1170 | set_idt(15, 0); | |
1171 | set_idt(16, 0); | |
1172 | set_idt(17, 0); | |
1173 | set_idt(18, 0); | |
1174 | set_idt(19, 0); | |
1175 | set_idt(0x80, 3); | |
1176 | ||
6dbad63e | 1177 | /* linux segment setup */ |
80a9d035 | 1178 | env->gdt.base = (long)gdt_table; |
6dbad63e | 1179 | env->gdt.limit = sizeof(gdt_table) - 1; |
f4beb510 FB |
1180 | write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
1181 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
1182 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); | |
1183 | write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, | |
1184 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
1185 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); | |
6dbad63e FB |
1186 | cpu_x86_load_seg(env, R_CS, __USER_CS); |
1187 | cpu_x86_load_seg(env, R_DS, __USER_DS); | |
1188 | cpu_x86_load_seg(env, R_ES, __USER_DS); | |
1189 | cpu_x86_load_seg(env, R_SS, __USER_DS); | |
1190 | cpu_x86_load_seg(env, R_FS, __USER_DS); | |
1191 | cpu_x86_load_seg(env, R_GS, __USER_DS); | |
92ccca6a | 1192 | |
b346ff46 FB |
1193 | #elif defined(TARGET_ARM) |
1194 | { | |
1195 | int i; | |
1196 | for(i = 0; i < 16; i++) { | |
1197 | env->regs[i] = regs->uregs[i]; | |
1198 | } | |
1199 | env->cpsr = regs->uregs[16]; | |
a4f81979 FB |
1200 | ts->stack_base = info->start_stack; |
1201 | ts->heap_base = info->brk; | |
1202 | /* This will be filled in on the first SYS_HEAPINFO call. */ | |
1203 | ts->heap_limit = 0; | |
b346ff46 | 1204 | } |
93ac68bc | 1205 | #elif defined(TARGET_SPARC) |
060366c5 FB |
1206 | { |
1207 | int i; | |
1208 | env->pc = regs->pc; | |
1209 | env->npc = regs->npc; | |
1210 | env->y = regs->y; | |
1211 | for(i = 0; i < 8; i++) | |
1212 | env->gregs[i] = regs->u_regs[i]; | |
1213 | for(i = 0; i < 8; i++) | |
1214 | env->regwptr[i] = regs->u_regs[i + 8]; | |
1215 | } | |
67867308 FB |
1216 | #elif defined(TARGET_PPC) |
1217 | { | |
3fc6c082 | 1218 | ppc_def_t *def; |
67867308 | 1219 | int i; |
3fc6c082 FB |
1220 | |
1221 | /* Choose and initialise CPU */ | |
1222 | /* XXX: CPU model (or PVR) should be provided on command line */ | |
1223 | // ppc_find_by_name("750gx", &def); | |
1224 | // ppc_find_by_name("750fx", &def); | |
1225 | // ppc_find_by_name("750p", &def); | |
1226 | ppc_find_by_name("750", &def); | |
1227 | // ppc_find_by_name("G3", &def); | |
1228 | // ppc_find_by_name("604r", &def); | |
1229 | // ppc_find_by_name("604e", &def); | |
1230 | // ppc_find_by_name("604", &def); | |
1231 | if (def == NULL) { | |
1232 | cpu_abort(cpu_single_env, | |
1233 | "Unable to find PowerPC CPU definition\n"); | |
1234 | } | |
1235 | cpu_ppc_register(cpu_single_env, def); | |
1236 | ||
61190b14 | 1237 | for (i = 0; i < 32; i++) { |
4c2e770f | 1238 | if (i != 12 && i != 6 && i != 13) |
61190b14 FB |
1239 | env->msr[i] = (regs->msr >> i) & 1; |
1240 | } | |
67867308 FB |
1241 | env->nip = regs->nip; |
1242 | for(i = 0; i < 32; i++) { | |
1243 | env->gpr[i] = regs->gpr[i]; | |
1244 | } | |
1245 | } | |
b346ff46 FB |
1246 | #else |
1247 | #error unsupported target CPU | |
1248 | #endif | |
31e31b8a | 1249 | |
1fddef4b FB |
1250 | if (use_gdbstub) { |
1251 | gdbserver_start (DEFAULT_GDBSTUB_PORT); | |
1252 | gdb_handlesig(env, 0); | |
1253 | } | |
1b6b029e FB |
1254 | cpu_loop(env); |
1255 | /* never exits */ | |
31e31b8a FB |
1256 | return 0; |
1257 | } |