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831b7825 TS |
1 | /* |
2 | * qemu user main | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * Copyright (c) 2006 Pierre d'Herbemont | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
530e7615 BS |
19 | * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | * MA 02110-1301, USA. | |
831b7825 TS |
21 | */ |
22 | #include <stdlib.h> | |
23 | #include <stdio.h> | |
24 | #include <stdarg.h> | |
25 | #include <string.h> | |
26 | #include <errno.h> | |
27 | #include <unistd.h> | |
28 | ||
29 | #include <sys/syscall.h> | |
30 | #include <sys/mman.h> | |
31 | ||
32 | #include "qemu.h" | |
33 | ||
34 | #define DEBUG_LOGFILE "/tmp/qemu.log" | |
35 | ||
36 | #ifdef __APPLE__ | |
37 | #include <crt_externs.h> | |
38 | # define environ (*_NSGetEnviron()) | |
39 | #endif | |
40 | ||
41 | #include <mach/mach_init.h> | |
42 | #include <mach/vm_map.h> | |
43 | ||
44 | const char *interp_prefix = ""; | |
45 | ||
46 | asm(".zerofill __STD_PROG_ZONE, __STD_PROG_ZONE, __std_prog_zone, 0x0dfff000"); | |
47 | ||
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 stack_size = 512 * 1024; | |
52 | ||
53 | void qerror(const char *fmt, ...) | |
54 | { | |
55 | va_list ap; | |
56 | ||
57 | va_start(ap, fmt); | |
58 | vfprintf(stderr, fmt, ap); | |
59 | va_end(ap); | |
60 | fprintf(stderr, "\n"); | |
61 | exit(1); | |
62 | } | |
63 | ||
64 | void gemu_log(const char *fmt, ...) | |
65 | { | |
66 | va_list ap; | |
67 | ||
68 | va_start(ap, fmt); | |
69 | vfprintf(stderr, fmt, ap); | |
70 | va_end(ap); | |
71 | } | |
72 | ||
73 | void cpu_outb(CPUState *env, int addr, int val) | |
74 | { | |
75 | fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val); | |
76 | } | |
77 | ||
78 | void cpu_outw(CPUState *env, int addr, int val) | |
79 | { | |
80 | fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val); | |
81 | } | |
82 | ||
83 | void cpu_outl(CPUState *env, int addr, int val) | |
84 | { | |
85 | fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); | |
86 | } | |
87 | ||
88 | int cpu_inb(CPUState *env, int addr) | |
89 | { | |
90 | fprintf(stderr, "inb: port=0x%04x\n", addr); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | int cpu_inw(CPUState *env, int addr) | |
95 | { | |
96 | fprintf(stderr, "inw: port=0x%04x\n", addr); | |
97 | return 0; | |
98 | } | |
99 | ||
100 | int cpu_inl(CPUState *env, int addr) | |
101 | { | |
102 | fprintf(stderr, "inl: port=0x%04x\n", addr); | |
103 | return 0; | |
104 | } | |
105 | ||
106 | int cpu_get_pic_interrupt(CPUState *env) | |
107 | { | |
108 | return -1; | |
109 | } | |
110 | #ifdef TARGET_PPC | |
111 | ||
112 | static inline uint64_t cpu_ppc_get_tb (CPUState *env) | |
113 | { | |
114 | /* TO FIX */ | |
115 | return 0; | |
116 | } | |
117 | ||
118 | uint32_t cpu_ppc_load_tbl (CPUState *env) | |
119 | { | |
120 | return cpu_ppc_get_tb(env) & 0xFFFFFFFF; | |
121 | } | |
122 | ||
123 | uint32_t cpu_ppc_load_tbu (CPUState *env) | |
124 | { | |
125 | return cpu_ppc_get_tb(env) >> 32; | |
126 | } | |
127 | ||
a062e36c | 128 | uint32_t cpu_ppc_load_atbl (CPUState *env) |
831b7825 | 129 | { |
a062e36c | 130 | return cpu_ppc_get_tb(env) & 0xFFFFFFFF; |
831b7825 TS |
131 | } |
132 | ||
a062e36c | 133 | uint32_t cpu_ppc_load_atbu (CPUState *env) |
c0009975 | 134 | { |
a062e36c | 135 | return cpu_ppc_get_tb(env) >> 32; |
c0009975 TS |
136 | } |
137 | ||
138 | uint32_t cpu_ppc601_load_rtcu (CPUState *env) | |
139 | { | |
140 | cpu_ppc_load_tbu(env); | |
141 | } | |
142 | ||
143 | uint32_t cpu_ppc601_load_rtcl (CPUState *env) | |
144 | { | |
145 | return cpu_ppc_load_tbl(env) & 0x3FFFFF80; | |
146 | } | |
147 | ||
e1833e1f JM |
148 | /* XXX: to be fixed */ |
149 | int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp) | |
150 | { | |
151 | return -1; | |
152 | } | |
153 | ||
154 | int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val) | |
155 | { | |
156 | return -1; | |
157 | } | |
158 | ||
159 | #define EXCP_DUMP(env, fmt, args...) \ | |
160 | do { \ | |
161 | fprintf(stderr, fmt , ##args); \ | |
162 | cpu_dump_state(env, stderr, fprintf, 0); \ | |
93fcfe39 AL |
163 | qemu_log(fmt, ##args); \ |
164 | log_cpu_state(env, 0); \ | |
e1833e1f JM |
165 | } while (0) |
166 | ||
831b7825 TS |
167 | void cpu_loop(CPUPPCState *env) |
168 | { | |
169 | int trapnr; | |
170 | uint32_t ret; | |
171 | target_siginfo_t info; | |
172 | ||
173 | for(;;) { | |
174 | trapnr = cpu_ppc_exec(env); | |
831b7825 | 175 | switch(trapnr) { |
e1833e1f JM |
176 | case POWERPC_EXCP_NONE: |
177 | /* Just go on */ | |
831b7825 | 178 | break; |
e1833e1f JM |
179 | case POWERPC_EXCP_CRITICAL: /* Critical input */ |
180 | cpu_abort(env, "Critical interrupt while in user mode. " | |
181 | "Aborting\n"); | |
831b7825 | 182 | break; |
e1833e1f JM |
183 | case POWERPC_EXCP_MCHECK: /* Machine check exception */ |
184 | cpu_abort(env, "Machine check exception while in user mode. " | |
185 | "Aborting\n"); | |
186 | break; | |
187 | case POWERPC_EXCP_DSI: /* Data storage exception */ | |
831b7825 TS |
188 | #ifndef DAR |
189 | /* To deal with multiple qemu header version as host for the darwin-user code */ | |
190 | # define DAR SPR_DAR | |
191 | #endif | |
e1833e1f JM |
192 | EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n", |
193 | env->spr[SPR_DAR]); | |
831b7825 TS |
194 | /* Handle this via the gdb */ |
195 | gdb_handlesig (env, SIGSEGV); | |
196 | ||
197 | info.si_addr = (void*)env->nip; | |
198 | queue_signal(info.si_signo, &info); | |
199 | break; | |
e1833e1f JM |
200 | case POWERPC_EXCP_ISI: /* Instruction storage exception */ |
201 | EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n", | |
202 | env->spr[SPR_DAR]); | |
831b7825 TS |
203 | /* Handle this via the gdb */ |
204 | gdb_handlesig (env, SIGSEGV); | |
205 | ||
206 | info.si_addr = (void*)(env->nip - 4); | |
207 | queue_signal(info.si_signo, &info); | |
208 | break; | |
e1833e1f JM |
209 | case POWERPC_EXCP_EXTERNAL: /* External input */ |
210 | cpu_abort(env, "External interrupt while in user mode. " | |
211 | "Aborting\n"); | |
212 | break; | |
213 | case POWERPC_EXCP_ALIGN: /* Alignment exception */ | |
214 | EXCP_DUMP(env, "Unaligned memory access\n"); | |
831b7825 TS |
215 | info.si_errno = 0; |
216 | info.si_code = BUS_ADRALN; | |
217 | info.si_addr = (void*)(env->nip - 4); | |
218 | queue_signal(info.si_signo, &info); | |
219 | break; | |
e1833e1f JM |
220 | case POWERPC_EXCP_PROGRAM: /* Program exception */ |
221 | /* XXX: check this */ | |
831b7825 | 222 | switch (env->error_code & ~0xF) { |
e1833e1f JM |
223 | case POWERPC_EXCP_FP: |
224 | EXCP_DUMP(env, "Floating point program exception\n"); | |
225 | /* Set FX */ | |
e1833e1f JM |
226 | info.si_signo = SIGFPE; |
227 | info.si_errno = 0; | |
228 | switch (env->error_code & 0xF) { | |
229 | case POWERPC_EXCP_FP_OX: | |
230 | info.si_code = FPE_FLTOVF; | |
231 | break; | |
232 | case POWERPC_EXCP_FP_UX: | |
233 | info.si_code = FPE_FLTUND; | |
234 | break; | |
235 | case POWERPC_EXCP_FP_ZX: | |
236 | case POWERPC_EXCP_FP_VXZDZ: | |
237 | info.si_code = FPE_FLTDIV; | |
238 | break; | |
239 | case POWERPC_EXCP_FP_XX: | |
240 | info.si_code = FPE_FLTRES; | |
241 | break; | |
242 | case POWERPC_EXCP_FP_VXSOFT: | |
243 | info.si_code = FPE_FLTINV; | |
244 | break; | |
7c58044c | 245 | case POWERPC_EXCP_FP_VXSNAN: |
e1833e1f JM |
246 | case POWERPC_EXCP_FP_VXISI: |
247 | case POWERPC_EXCP_FP_VXIDI: | |
248 | case POWERPC_EXCP_FP_VXIMZ: | |
249 | case POWERPC_EXCP_FP_VXVC: | |
250 | case POWERPC_EXCP_FP_VXSQRT: | |
251 | case POWERPC_EXCP_FP_VXCVI: | |
252 | info.si_code = FPE_FLTSUB; | |
831b7825 | 253 | break; |
831b7825 | 254 | default: |
e1833e1f JM |
255 | EXCP_DUMP(env, "Unknown floating point exception (%02x)\n", |
256 | env->error_code); | |
257 | break; | |
258 | } | |
259 | break; | |
260 | case POWERPC_EXCP_INVAL: | |
261 | EXCP_DUMP(env, "Invalid instruction\n"); | |
262 | info.si_signo = SIGILL; | |
263 | info.si_errno = 0; | |
264 | switch (env->error_code & 0xF) { | |
265 | case POWERPC_EXCP_INVAL_INVAL: | |
266 | info.si_code = ILL_ILLOPC; | |
267 | break; | |
268 | case POWERPC_EXCP_INVAL_LSWX: | |
269 | info.si_code = ILL_ILLOPN; | |
270 | break; | |
271 | case POWERPC_EXCP_INVAL_SPR: | |
272 | info.si_code = ILL_PRVREG; | |
273 | break; | |
274 | case POWERPC_EXCP_INVAL_FP: | |
275 | info.si_code = ILL_COPROC; | |
276 | break; | |
277 | default: | |
278 | EXCP_DUMP(env, "Unknown invalid operation (%02x)\n", | |
279 | env->error_code & 0xF); | |
280 | info.si_code = ILL_ILLADR; | |
281 | break; | |
282 | } | |
283 | /* Handle this via the gdb */ | |
284 | gdb_handlesig (env, SIGSEGV); | |
285 | break; | |
286 | case POWERPC_EXCP_PRIV: | |
287 | EXCP_DUMP(env, "Privilege violation\n"); | |
288 | info.si_signo = SIGILL; | |
289 | info.si_errno = 0; | |
290 | switch (env->error_code & 0xF) { | |
291 | case POWERPC_EXCP_PRIV_OPC: | |
292 | info.si_code = ILL_PRVOPC; | |
293 | break; | |
294 | case POWERPC_EXCP_PRIV_REG: | |
295 | info.si_code = ILL_PRVREG; | |
296 | break; | |
297 | default: | |
298 | EXCP_DUMP(env, "Unknown privilege violation (%02x)\n", | |
299 | env->error_code & 0xF); | |
300 | info.si_code = ILL_PRVOPC; | |
301 | break; | |
302 | } | |
303 | break; | |
304 | case POWERPC_EXCP_TRAP: | |
305 | cpu_abort(env, "Tried to call a TRAP\n"); | |
306 | break; | |
307 | default: | |
308 | /* Should not happen ! */ | |
309 | cpu_abort(env, "Unknown program exception (%02x)\n", | |
310 | env->error_code); | |
311 | break; | |
831b7825 TS |
312 | } |
313 | info.si_addr = (void*)(env->nip - 4); | |
314 | queue_signal(info.si_signo, &info); | |
315 | break; | |
e1833e1f JM |
316 | case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */ |
317 | EXCP_DUMP(env, "No floating point allowed\n"); | |
318 | info.si_signo = SIGILL; | |
831b7825 TS |
319 | info.si_errno = 0; |
320 | info.si_code = ILL_COPROC; | |
321 | info.si_addr = (void*)(env->nip - 4); | |
322 | queue_signal(info.si_signo, &info); | |
323 | break; | |
e1833e1f JM |
324 | case POWERPC_EXCP_SYSCALL: /* System call exception */ |
325 | cpu_abort(env, "Syscall exception while in user mode. " | |
326 | "Aborting\n"); | |
831b7825 | 327 | break; |
e1833e1f JM |
328 | case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */ |
329 | EXCP_DUMP(env, "No APU instruction allowed\n"); | |
330 | info.si_signo = SIGILL; | |
331 | info.si_errno = 0; | |
332 | info.si_code = ILL_COPROC; | |
333 | info.si_addr = (void*)(env->nip - 4); | |
334 | queue_signal(info.si_signo, &info); | |
335 | break; | |
336 | case POWERPC_EXCP_DECR: /* Decrementer exception */ | |
337 | cpu_abort(env, "Decrementer interrupt while in user mode. " | |
338 | "Aborting\n"); | |
339 | break; | |
340 | case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */ | |
341 | cpu_abort(env, "Fix interval timer interrupt while in user mode. " | |
342 | "Aborting\n"); | |
343 | break; | |
344 | case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */ | |
345 | cpu_abort(env, "Watchdog timer interrupt while in user mode. " | |
346 | "Aborting\n"); | |
831b7825 | 347 | break; |
e1833e1f JM |
348 | case POWERPC_EXCP_DTLB: /* Data TLB error */ |
349 | cpu_abort(env, "Data TLB exception while in user mode. " | |
350 | "Aborting\n"); | |
831b7825 | 351 | break; |
e1833e1f JM |
352 | case POWERPC_EXCP_ITLB: /* Instruction TLB error */ |
353 | cpu_abort(env, "Instruction TLB exception while in user mode. " | |
354 | "Aborting\n"); | |
831b7825 | 355 | break; |
e1833e1f | 356 | case POWERPC_EXCP_DEBUG: /* Debug interrupt */ |
831b7825 TS |
357 | gdb_handlesig (env, SIGTRAP); |
358 | break; | |
e1833e1f JM |
359 | case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */ |
360 | EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n"); | |
361 | info.si_signo = SIGILL; | |
362 | info.si_errno = 0; | |
363 | info.si_code = ILL_COPROC; | |
364 | info.si_addr = (void*)(env->nip - 4); | |
365 | queue_signal(info.si_signo, &info); | |
366 | break; | |
367 | case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */ | |
368 | cpu_abort(env, "Embedded floating-point data IRQ not handled\n"); | |
369 | break; | |
370 | case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */ | |
371 | cpu_abort(env, "Embedded floating-point round IRQ not handled\n"); | |
372 | break; | |
373 | case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */ | |
374 | cpu_abort(env, "Performance monitor exception not handled\n"); | |
375 | break; | |
376 | case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */ | |
377 | cpu_abort(env, "Doorbell interrupt while in user mode. " | |
378 | "Aborting\n"); | |
379 | break; | |
380 | case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */ | |
381 | cpu_abort(env, "Doorbell critical interrupt while in user mode. " | |
382 | "Aborting\n"); | |
383 | break; | |
e1833e1f JM |
384 | case POWERPC_EXCP_RESET: /* System reset exception */ |
385 | cpu_abort(env, "Reset interrupt while in user mode. " | |
386 | "Aborting\n"); | |
387 | break; | |
e1833e1f JM |
388 | case POWERPC_EXCP_DSEG: /* Data segment exception */ |
389 | cpu_abort(env, "Data segment exception while in user mode. " | |
390 | "Aborting\n"); | |
391 | break; | |
392 | case POWERPC_EXCP_ISEG: /* Instruction segment exception */ | |
393 | cpu_abort(env, "Instruction segment exception " | |
394 | "while in user mode. Aborting\n"); | |
395 | break; | |
e1833e1f JM |
396 | case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ |
397 | cpu_abort(env, "Hypervisor decrementer interrupt " | |
398 | "while in user mode. Aborting\n"); | |
399 | break; | |
e1833e1f JM |
400 | case POWERPC_EXCP_TRACE: /* Trace exception */ |
401 | /* Nothing to do: | |
402 | * we use this exception to emulate step-by-step execution mode. | |
403 | */ | |
404 | break; | |
e1833e1f JM |
405 | case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */ |
406 | cpu_abort(env, "Hypervisor data storage exception " | |
407 | "while in user mode. Aborting\n"); | |
408 | break; | |
409 | case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */ | |
410 | cpu_abort(env, "Hypervisor instruction storage exception " | |
411 | "while in user mode. Aborting\n"); | |
412 | break; | |
413 | case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */ | |
414 | cpu_abort(env, "Hypervisor data segment exception " | |
415 | "while in user mode. Aborting\n"); | |
416 | break; | |
417 | case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */ | |
418 | cpu_abort(env, "Hypervisor instruction segment exception " | |
419 | "while in user mode. Aborting\n"); | |
420 | break; | |
e1833e1f JM |
421 | case POWERPC_EXCP_VPU: /* Vector unavailable exception */ |
422 | EXCP_DUMP(env, "No Altivec instructions allowed\n"); | |
423 | info.si_signo = SIGILL; | |
424 | info.si_errno = 0; | |
425 | info.si_code = ILL_COPROC; | |
426 | info.si_addr = (void*)(env->nip - 4); | |
427 | queue_signal(info.si_signo, &info); | |
428 | break; | |
429 | case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */ | |
430 | cpu_abort(env, "Programable interval timer interrupt " | |
431 | "while in user mode. Aborting\n"); | |
432 | break; | |
433 | case POWERPC_EXCP_IO: /* IO error exception */ | |
434 | cpu_abort(env, "IO error exception while in user mode. " | |
435 | "Aborting\n"); | |
436 | break; | |
437 | case POWERPC_EXCP_RUNM: /* Run mode exception */ | |
438 | cpu_abort(env, "Run mode exception while in user mode. " | |
439 | "Aborting\n"); | |
440 | break; | |
441 | case POWERPC_EXCP_EMUL: /* Emulation trap exception */ | |
442 | cpu_abort(env, "Emulation trap exception not handled\n"); | |
443 | break; | |
444 | case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */ | |
445 | cpu_abort(env, "Instruction fetch TLB exception " | |
446 | "while in user-mode. Aborting"); | |
447 | break; | |
448 | case POWERPC_EXCP_DLTLB: /* Data load TLB miss */ | |
449 | cpu_abort(env, "Data load TLB exception while in user-mode. " | |
450 | "Aborting"); | |
451 | break; | |
452 | case POWERPC_EXCP_DSTLB: /* Data store TLB miss */ | |
453 | cpu_abort(env, "Data store TLB exception while in user-mode. " | |
454 | "Aborting"); | |
455 | break; | |
456 | case POWERPC_EXCP_FPA: /* Floating-point assist exception */ | |
457 | cpu_abort(env, "Floating-point assist exception not handled\n"); | |
458 | break; | |
459 | case POWERPC_EXCP_IABR: /* Instruction address breakpoint */ | |
460 | cpu_abort(env, "Instruction address breakpoint exception " | |
461 | "not handled\n"); | |
462 | break; | |
463 | case POWERPC_EXCP_SMI: /* System management interrupt */ | |
464 | cpu_abort(env, "System management interrupt while in user mode. " | |
465 | "Aborting\n"); | |
466 | break; | |
467 | case POWERPC_EXCP_THERM: /* Thermal interrupt */ | |
468 | cpu_abort(env, "Thermal interrupt interrupt while in user mode. " | |
469 | "Aborting\n"); | |
470 | break; | |
471 | case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */ | |
472 | cpu_abort(env, "Performance monitor exception not handled\n"); | |
473 | break; | |
474 | case POWERPC_EXCP_VPUA: /* Vector assist exception */ | |
475 | cpu_abort(env, "Vector assist exception not handled\n"); | |
476 | break; | |
477 | case POWERPC_EXCP_SOFTP: /* Soft patch exception */ | |
478 | cpu_abort(env, "Soft patch exception not handled\n"); | |
479 | break; | |
480 | case POWERPC_EXCP_MAINT: /* Maintenance exception */ | |
481 | cpu_abort(env, "Maintenance exception while in user mode. " | |
482 | "Aborting\n"); | |
483 | break; | |
484 | case POWERPC_EXCP_STOP: /* stop translation */ | |
485 | /* We did invalidate the instruction cache. Go on */ | |
486 | break; | |
487 | case POWERPC_EXCP_BRANCH: /* branch instruction: */ | |
488 | /* We just stopped because of a branch. Go on */ | |
489 | break; | |
490 | case POWERPC_EXCP_SYSCALL_USER: | |
491 | /* system call in user-mode emulation */ | |
492 | /* system call */ | |
493 | if(((int)env->gpr[0]) <= SYS_MAXSYSCALL && ((int)env->gpr[0])>0) | |
494 | ret = do_unix_syscall(env, env->gpr[0]/*, env->gpr[3], env->gpr[4], | |
495 | env->gpr[5], env->gpr[6], env->gpr[7], | |
496 | env->gpr[8], env->gpr[9], env->gpr[10]*/); | |
497 | else if(((int)env->gpr[0])<0) | |
498 | ret = do_mach_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], | |
499 | env->gpr[5], env->gpr[6], env->gpr[7], | |
500 | env->gpr[8], env->gpr[9], env->gpr[10]); | |
501 | else | |
502 | ret = do_thread_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], | |
503 | env->gpr[5], env->gpr[6], env->gpr[7], | |
504 | env->gpr[8], env->gpr[9], env->gpr[10]); | |
505 | ||
506 | /* Unix syscall error signaling */ | |
507 | if(((int)env->gpr[0]) <= SYS_MAXSYSCALL && ((int)env->gpr[0])>0) | |
508 | { | |
509 | if( (int)ret < 0 ) | |
510 | env->nip += 0; | |
511 | else | |
512 | env->nip += 4; | |
831b7825 | 513 | } |
e1833e1f JM |
514 | |
515 | /* Return value */ | |
516 | env->gpr[3] = ret; | |
517 | break; | |
56ba31ff JM |
518 | case EXCP_INTERRUPT: |
519 | /* just indicate that signals should be handled asap */ | |
520 | break; | |
e1833e1f JM |
521 | default: |
522 | cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr); | |
523 | break; | |
831b7825 TS |
524 | } |
525 | process_pending_signals(env); | |
526 | } | |
527 | } | |
528 | #endif | |
529 | ||
530 | ||
531 | #ifdef TARGET_I386 | |
532 | ||
533 | /***********************************************************/ | |
534 | /* CPUX86 core interface */ | |
535 | ||
536 | uint64_t cpu_get_tsc(CPUX86State *env) | |
537 | { | |
538 | return cpu_get_real_ticks(); | |
539 | } | |
540 | ||
541 | void | |
542 | write_dt(void *ptr, unsigned long addr, unsigned long limit, | |
543 | int flags) | |
544 | { | |
545 | unsigned int e1, e2; | |
546 | e1 = (addr << 16) | (limit & 0xffff); | |
547 | e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); | |
548 | e2 |= flags; | |
549 | stl((uint8_t *)ptr, e1); | |
550 | stl((uint8_t *)ptr + 4, e2); | |
551 | } | |
552 | ||
553 | static void set_gate(void *ptr, unsigned int type, unsigned int dpl, | |
554 | unsigned long addr, unsigned int sel) | |
555 | { | |
556 | unsigned int e1, e2; | |
557 | e1 = (addr & 0xffff) | (sel << 16); | |
558 | e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); | |
559 | stl((uint8_t *)ptr, e1); | |
560 | stl((uint8_t *)ptr + 4, e2); | |
561 | } | |
562 | ||
563 | #define GDT_TABLE_SIZE 14 | |
564 | #define LDT_TABLE_SIZE 15 | |
565 | #define IDT_TABLE_SIZE 256 | |
566 | #define TSS_SIZE 104 | |
567 | uint64_t gdt_table[GDT_TABLE_SIZE]; | |
568 | uint64_t ldt_table[LDT_TABLE_SIZE]; | |
569 | uint64_t idt_table[IDT_TABLE_SIZE]; | |
570 | uint32_t tss[TSS_SIZE]; | |
571 | ||
572 | /* only dpl matters as we do only user space emulation */ | |
573 | static void set_idt(int n, unsigned int dpl) | |
574 | { | |
575 | set_gate(idt_table + n, 0, dpl, 0, 0); | |
576 | } | |
577 | ||
578 | /* ABI convention: after a syscall if there was an error the CF flag is set */ | |
46ea3397 | 579 | static inline void set_error(CPUX86State *env, int ret) |
831b7825 TS |
580 | { |
581 | if(ret<0) | |
582 | env->eflags = env->eflags | 0x1; | |
583 | else | |
584 | env->eflags &= ~0x1; | |
585 | env->regs[R_EAX] = ret; | |
586 | } | |
587 | ||
588 | void cpu_loop(CPUX86State *env) | |
589 | { | |
590 | int trapnr; | |
591 | int ret; | |
592 | uint8_t *pc; | |
593 | target_siginfo_t info; | |
594 | ||
595 | for(;;) { | |
596 | trapnr = cpu_x86_exec(env); | |
597 | uint32_t *params = (uint32_t *)env->regs[R_ESP]; | |
598 | switch(trapnr) { | |
599 | case 0x79: /* Our commpage hack back door exit is here */ | |
600 | do_commpage(env, env->eip, *(params + 1), *(params + 2), | |
601 | *(params + 3), *(params + 4), | |
602 | *(params + 5), *(params + 6), | |
603 | *(params + 7), *(params + 8)); | |
604 | break; | |
605 | case 0x81: /* mach syscall */ | |
606 | { | |
607 | ret = do_mach_syscall(env, env->regs[R_EAX], | |
608 | *(params + 1), *(params + 2), | |
609 | *(params + 3), *(params + 4), | |
610 | *(params + 5), *(params + 6), | |
611 | *(params + 7), *(params + 8)); | |
612 | set_error(env, ret); | |
613 | break; | |
614 | } | |
615 | case 0x90: /* unix backdoor */ | |
616 | { | |
617 | /* after sysenter, stack is in R_ECX, new eip in R_EDX (sysexit will flip them back)*/ | |
618 | int saved_stack = env->regs[R_ESP]; | |
619 | env->regs[R_ESP] = env->regs[R_ECX]; | |
620 | ||
621 | ret = do_unix_syscall(env, env->regs[R_EAX]); | |
622 | ||
623 | env->regs[R_ECX] = env->regs[R_ESP]; | |
624 | env->regs[R_ESP] = saved_stack; | |
625 | ||
626 | set_error(env, ret); | |
627 | break; | |
628 | } | |
629 | case 0x80: /* unix syscall */ | |
630 | { | |
631 | ret = do_unix_syscall(env, env->regs[R_EAX]/*, | |
632 | *(params + 1), *(params + 2), | |
633 | *(params + 3), *(params + 4), | |
634 | *(params + 5), *(params + 6), | |
635 | *(params + 7), *(params + 8)*/); | |
636 | set_error(env, ret); | |
637 | break; | |
638 | } | |
639 | case 0x82: /* thread syscall */ | |
640 | { | |
641 | ret = do_thread_syscall(env, env->regs[R_EAX], | |
642 | *(params + 1), *(params + 2), | |
643 | *(params + 3), *(params + 4), | |
644 | *(params + 5), *(params + 6), | |
645 | *(params + 7), *(params + 8)); | |
646 | set_error(env, ret); | |
647 | break; | |
648 | } | |
649 | case EXCP0B_NOSEG: | |
650 | case EXCP0C_STACK: | |
651 | info.si_signo = SIGBUS; | |
652 | info.si_errno = 0; | |
653 | info.si_code = BUS_NOOP; | |
654 | info.si_addr = 0; | |
655 | gdb_handlesig (env, SIGBUS); | |
656 | queue_signal(info.si_signo, &info); | |
657 | break; | |
658 | case EXCP0D_GPF: | |
659 | info.si_signo = SIGSEGV; | |
660 | info.si_errno = 0; | |
661 | info.si_code = SEGV_NOOP; | |
662 | info.si_addr = 0; | |
663 | gdb_handlesig (env, SIGSEGV); | |
664 | queue_signal(info.si_signo, &info); | |
665 | break; | |
666 | case EXCP0E_PAGE: | |
667 | info.si_signo = SIGSEGV; | |
668 | info.si_errno = 0; | |
669 | if (!(env->error_code & 1)) | |
670 | info.si_code = SEGV_MAPERR; | |
671 | else | |
672 | info.si_code = SEGV_ACCERR; | |
673 | info.si_addr = (void*)env->cr[2]; | |
674 | gdb_handlesig (env, SIGSEGV); | |
675 | queue_signal(info.si_signo, &info); | |
676 | break; | |
677 | case EXCP00_DIVZ: | |
678 | /* division by zero */ | |
679 | info.si_signo = SIGFPE; | |
680 | info.si_errno = 0; | |
681 | info.si_code = FPE_INTDIV; | |
682 | info.si_addr = (void*)env->eip; | |
683 | gdb_handlesig (env, SIGFPE); | |
684 | queue_signal(info.si_signo, &info); | |
685 | break; | |
686 | case EXCP01_SSTP: | |
687 | case EXCP03_INT3: | |
688 | info.si_signo = SIGTRAP; | |
689 | info.si_errno = 0; | |
690 | info.si_code = TRAP_BRKPT; | |
691 | info.si_addr = (void*)env->eip; | |
692 | gdb_handlesig (env, SIGTRAP); | |
693 | queue_signal(info.si_signo, &info); | |
694 | break; | |
695 | case EXCP04_INTO: | |
696 | case EXCP05_BOUND: | |
697 | info.si_signo = SIGSEGV; | |
698 | info.si_errno = 0; | |
699 | info.si_code = SEGV_NOOP; | |
700 | info.si_addr = 0; | |
701 | gdb_handlesig (env, SIGSEGV); | |
702 | queue_signal(info.si_signo, &info); | |
703 | break; | |
704 | case EXCP06_ILLOP: | |
705 | info.si_signo = SIGILL; | |
706 | info.si_errno = 0; | |
707 | info.si_code = ILL_ILLOPN; | |
708 | info.si_addr = (void*)env->eip; | |
709 | gdb_handlesig (env, SIGILL); | |
710 | queue_signal(info.si_signo, &info); | |
711 | break; | |
712 | case EXCP_INTERRUPT: | |
713 | /* just indicate that signals should be handled asap */ | |
714 | break; | |
715 | case EXCP_DEBUG: | |
716 | { | |
717 | int sig; | |
718 | ||
719 | sig = gdb_handlesig (env, SIGTRAP); | |
720 | if (sig) | |
721 | { | |
722 | info.si_signo = sig; | |
723 | info.si_errno = 0; | |
724 | info.si_code = TRAP_BRKPT; | |
725 | queue_signal(info.si_signo, &info); | |
726 | } | |
727 | } | |
728 | break; | |
729 | default: | |
730 | pc = (void*)(env->segs[R_CS].base + env->eip); | |
731 | fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n", | |
732 | (long)pc, trapnr); | |
733 | abort(); | |
734 | } | |
735 | process_pending_signals(env); | |
736 | } | |
737 | } | |
738 | #endif | |
739 | ||
740 | void usage(void) | |
741 | { | |
742 | printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n" | |
743 | "usage: qemu-" TARGET_ARCH " [-h] [-d opts] [-L path] [-s size] program [arguments...]\n" | |
744 | "Darwin CPU emulator (compiled for %s emulation)\n" | |
745 | "\n" | |
746 | "-h print this help\n" | |
1e2bed4f | 747 | "-L path set the %s library path (default='%s')\n" |
831b7825 TS |
748 | "-s size set the stack size in bytes (default=%ld)\n" |
749 | "\n" | |
750 | "debug options:\n" | |
1e2bed4f | 751 | "-d options activate log (logfile='%s')\n" |
831b7825 TS |
752 | "-g wait for gdb on port 1234\n" |
753 | "-p pagesize set the host page size to 'pagesize'\n", | |
754 | TARGET_ARCH, | |
1e2bed4f | 755 | TARGET_ARCH, |
831b7825 TS |
756 | interp_prefix, |
757 | stack_size, | |
758 | DEBUG_LOGFILE); | |
2d18e637 | 759 | exit(1); |
831b7825 TS |
760 | } |
761 | ||
762 | /* XXX: currently only used for async signals (see signal.c) */ | |
763 | CPUState *global_env; | |
764 | /* used only if single thread */ | |
765 | CPUState *cpu_single_env = NULL; | |
766 | ||
767 | /* used to free thread contexts */ | |
768 | TaskState *first_task_state; | |
769 | ||
770 | int main(int argc, char **argv) | |
771 | { | |
772 | const char *filename; | |
773 | struct target_pt_regs regs1, *regs = ®s1; | |
774 | TaskState ts1, *ts = &ts1; | |
775 | CPUState *env; | |
776 | int optind; | |
777 | short use_gdbstub = 0; | |
778 | const char *r; | |
aaed909a | 779 | const char *cpu_model; |
831b7825 TS |
780 | |
781 | if (argc <= 1) | |
782 | usage(); | |
783 | ||
784 | /* init debug */ | |
785 | cpu_set_log_filename(DEBUG_LOGFILE); | |
786 | ||
787 | optind = 1; | |
788 | for(;;) { | |
789 | if (optind >= argc) | |
790 | break; | |
791 | r = argv[optind]; | |
792 | if (r[0] != '-') | |
793 | break; | |
794 | optind++; | |
795 | r++; | |
796 | if (!strcmp(r, "-")) { | |
797 | break; | |
798 | } else if (!strcmp(r, "d")) { | |
799 | int mask; | |
800 | CPULogItem *item; | |
801 | ||
802 | if (optind >= argc) | |
803 | break; | |
804 | ||
805 | r = argv[optind++]; | |
806 | mask = cpu_str_to_log_mask(r); | |
807 | if (!mask) { | |
808 | printf("Log items (comma separated):\n"); | |
809 | for(item = cpu_log_items; item->mask != 0; item++) { | |
810 | printf("%-10s %s\n", item->name, item->help); | |
811 | } | |
812 | exit(1); | |
813 | } | |
814 | cpu_set_log(mask); | |
815 | } else if (!strcmp(r, "s")) { | |
816 | r = argv[optind++]; | |
817 | stack_size = strtol(r, (char **)&r, 0); | |
818 | if (stack_size <= 0) | |
819 | usage(); | |
820 | if (*r == 'M') | |
821 | stack_size *= 1024 * 1024; | |
822 | else if (*r == 'k' || *r == 'K') | |
823 | stack_size *= 1024; | |
824 | } else if (!strcmp(r, "L")) { | |
825 | interp_prefix = argv[optind++]; | |
826 | } else if (!strcmp(r, "p")) { | |
827 | qemu_host_page_size = atoi(argv[optind++]); | |
828 | if (qemu_host_page_size == 0 || | |
829 | (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { | |
830 | fprintf(stderr, "page size must be a power of two\n"); | |
831 | exit(1); | |
832 | } | |
833 | } else | |
834 | if (!strcmp(r, "g")) { | |
835 | use_gdbstub = 1; | |
31fca6ab JM |
836 | } else if (!strcmp(r, "cpu")) { |
837 | cpu_model = argv[optind++]; | |
838 | if (strcmp(cpu_model, "?") == 0) { | |
839 | /* XXX: implement xxx_cpu_list for targets that still miss it */ | |
840 | #if defined(cpu_list) | |
841 | cpu_list(stdout, &fprintf); | |
842 | #endif | |
2d18e637 | 843 | exit(1); |
31fca6ab | 844 | } |
831b7825 | 845 | } else |
831b7825 TS |
846 | { |
847 | usage(); | |
848 | } | |
849 | } | |
850 | if (optind >= argc) | |
851 | usage(); | |
852 | filename = argv[optind]; | |
853 | ||
854 | /* Zero out regs */ | |
855 | memset(regs, 0, sizeof(struct target_pt_regs)); | |
856 | ||
31fca6ab | 857 | if (cpu_model == NULL) { |
aaed909a | 858 | #if defined(TARGET_I386) |
31fca6ab JM |
859 | #ifdef TARGET_X86_64 |
860 | cpu_model = "qemu64"; | |
861 | #else | |
862 | cpu_model = "qemu32"; | |
863 | #endif | |
aaed909a | 864 | #elif defined(TARGET_PPC) |
31fca6ab JM |
865 | #ifdef TARGET_PPC64 |
866 | cpu_model = "970"; | |
867 | #else | |
868 | cpu_model = "750"; | |
869 | #endif | |
aaed909a FB |
870 | #else |
871 | #error unsupported CPU | |
872 | #endif | |
31fca6ab | 873 | } |
aaed909a | 874 | |
26a5f13b | 875 | cpu_exec_init_all(0); |
31fca6ab JM |
876 | /* NOTE: we need to init the CPU at this stage to get |
877 | qemu_host_page_size */ | |
aaed909a | 878 | env = cpu_init(cpu_model); |
831b7825 TS |
879 | |
880 | printf("Starting %s with qemu\n----------------\n", filename); | |
881 | ||
882 | commpage_init(); | |
883 | ||
884 | if (mach_exec(filename, argv+optind, environ, regs) != 0) { | |
885 | printf("Error loading %s\n", filename); | |
886 | _exit(1); | |
887 | } | |
888 | ||
889 | syscall_init(); | |
890 | signal_init(); | |
891 | global_env = env; | |
892 | ||
893 | /* build Task State */ | |
894 | memset(ts, 0, sizeof(TaskState)); | |
895 | env->opaque = ts; | |
896 | ts->used = 1; | |
831b7825 TS |
897 | |
898 | #if defined(TARGET_I386) | |
899 | cpu_x86_set_cpl(env, 3); | |
900 | ||
901 | env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK; | |
902 | env->hflags |= HF_PE_MASK; | |
903 | ||
904 | if (env->cpuid_features & CPUID_SSE) { | |
905 | env->cr[4] |= CR4_OSFXSR_MASK; | |
906 | env->hflags |= HF_OSFXSR_MASK; | |
907 | } | |
908 | ||
909 | /* flags setup : we activate the IRQs by default as in user mode */ | |
910 | env->eflags |= IF_MASK; | |
911 | ||
912 | /* darwin register setup */ | |
913 | env->regs[R_EAX] = regs->eax; | |
914 | env->regs[R_EBX] = regs->ebx; | |
915 | env->regs[R_ECX] = regs->ecx; | |
916 | env->regs[R_EDX] = regs->edx; | |
917 | env->regs[R_ESI] = regs->esi; | |
918 | env->regs[R_EDI] = regs->edi; | |
919 | env->regs[R_EBP] = regs->ebp; | |
920 | env->regs[R_ESP] = regs->esp; | |
921 | env->eip = regs->eip; | |
922 | ||
923 | /* Darwin LDT setup */ | |
924 | /* 2 - User code segment | |
925 | 3 - User data segment | |
926 | 4 - User cthread */ | |
927 | bzero(ldt_table, LDT_TABLE_SIZE * sizeof(ldt_table[0])); | |
928 | env->ldt.base = (uint32_t) ldt_table; | |
929 | env->ldt.limit = sizeof(ldt_table) - 1; | |
930 | ||
931 | write_dt(ldt_table + 2, 0, 0xfffff, | |
932 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
933 | (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); | |
934 | write_dt(ldt_table + 3, 0, 0xfffff, | |
935 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
936 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); | |
937 | write_dt(ldt_table + 4, 0, 0xfffff, | |
938 | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | | |
939 | (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); | |
940 | ||
941 | /* Darwin GDT setup. | |
942 | * has changed a lot between old Darwin/x86 (pre-Mac Intel) and Mac OS X/x86, | |
943 | now everything is done via int 0x81(mach) int 0x82 (thread) and sysenter/sysexit(unix) */ | |
944 | bzero(gdt_table, sizeof(gdt_table)); | |
945 | env->gdt.base = (uint32_t)gdt_table; | |
946 | env->gdt.limit = sizeof(gdt_table) - 1; | |
947 | ||
948 | /* Set up a back door to handle sysenter syscalls (unix) */ | |
949 | char * syscallbackdoor = malloc(64); | |
950 | page_set_flags((int)syscallbackdoor, (int)syscallbackdoor + 64, PROT_EXEC | PROT_READ | PAGE_VALID); | |
951 | ||
952 | int i = 0; | |
953 | syscallbackdoor[i++] = 0xcd; | |
954 | syscallbackdoor[i++] = 0x90; /* int 0x90 */ | |
955 | syscallbackdoor[i++] = 0x0F; | |
956 | syscallbackdoor[i++] = 0x35; /* sysexit */ | |
957 | ||
958 | /* Darwin sysenter/sysexit setup */ | |
959 | env->sysenter_cs = 0x1; //XXX | |
960 | env->sysenter_eip = (int)syscallbackdoor; | |
961 | env->sysenter_esp = (int)malloc(64); | |
962 | ||
963 | /* Darwin TSS setup | |
964 | This must match up with GDT[4] */ | |
965 | env->tr.base = (uint32_t) tss; | |
966 | env->tr.limit = sizeof(tss) - 1; | |
967 | env->tr.flags = DESC_P_MASK | (0x9 << DESC_TYPE_SHIFT); | |
968 | stw(tss + 2, 0x10); // ss0 = 0x10 = GDT[2] = Kernel Data Segment | |
969 | ||
970 | /* Darwin interrupt setup */ | |
971 | bzero(idt_table, sizeof(idt_table)); | |
972 | env->idt.base = (uint32_t) idt_table; | |
973 | env->idt.limit = sizeof(idt_table) - 1; | |
974 | set_idt(0, 0); | |
975 | set_idt(1, 0); | |
976 | set_idt(2, 0); | |
977 | set_idt(3, 3); | |
978 | set_idt(4, 3); | |
979 | set_idt(5, 3); | |
980 | set_idt(6, 0); | |
981 | set_idt(7, 0); | |
982 | set_idt(8, 0); | |
983 | set_idt(9, 0); | |
984 | set_idt(10, 0); | |
985 | set_idt(11, 0); | |
986 | set_idt(12, 0); | |
987 | set_idt(13, 0); | |
988 | set_idt(14, 0); | |
989 | set_idt(15, 0); | |
990 | set_idt(16, 0); | |
991 | set_idt(17, 0); | |
992 | set_idt(18, 0); | |
993 | set_idt(19, 0); | |
994 | /* Syscalls are done via | |
995 | int 0x80 (unix) (rarely used) | |
996 | int 0x81 (mach) | |
997 | int 0x82 (thread) | |
998 | int 0x83 (diag) (not handled here) | |
999 | sysenter/sysexit (unix) -> we redirect that to int 0x90 */ | |
1000 | set_idt(0x79, 3); /* Commpage hack, here is our backdoor interrupt */ | |
1001 | set_idt(0x80, 3); /* Unix Syscall */ | |
1002 | set_idt(0x81, 3); /* Mach Syscalls */ | |
1003 | set_idt(0x82, 3); /* thread Syscalls */ | |
1004 | ||
1e2bed4f | 1005 | set_idt(0x90, 3); /* qemu-darwin-user's Unix syscalls backdoor */ |
831b7825 TS |
1006 | |
1007 | ||
1008 | cpu_x86_load_seg(env, R_CS, __USER_CS); | |
1009 | cpu_x86_load_seg(env, R_DS, __USER_DS); | |
1010 | cpu_x86_load_seg(env, R_ES, __USER_DS); | |
1011 | cpu_x86_load_seg(env, R_SS, __USER_DS); | |
1012 | cpu_x86_load_seg(env, R_FS, __USER_DS); | |
1013 | cpu_x86_load_seg(env, R_GS, __USER_DS); | |
1014 | ||
1015 | #elif defined(TARGET_PPC) | |
1016 | { | |
1017 | int i; | |
31fca6ab JM |
1018 | |
1019 | #if defined(TARGET_PPC64) | |
1020 | #if defined(TARGET_ABI32) | |
1021 | env->msr &= ~((target_ulong)1 << MSR_SF); | |
1022 | #else | |
1023 | env->msr |= (target_ulong)1 << MSR_SF; | |
1024 | #endif | |
1025 | #endif | |
831b7825 TS |
1026 | env->nip = regs->nip; |
1027 | for(i = 0; i < 32; i++) { | |
1028 | env->gpr[i] = regs->gpr[i]; | |
1029 | } | |
1030 | } | |
1031 | #else | |
1032 | #error unsupported target CPU | |
1033 | #endif | |
1034 | ||
1035 | if (use_gdbstub) { | |
1036 | printf("Waiting for gdb Connection on port 1234...\n"); | |
1037 | gdbserver_start (1234); | |
1038 | gdb_handlesig(env, 0); | |
1039 | } | |
1040 | ||
1041 | cpu_loop(env); | |
1042 | /* never exits */ | |
1043 | return 0; | |
1044 | } |