]>
Commit | Line | Data |
---|---|---|
7d13299d FB |
1 | /* |
2 | * i386 emulator main execution loop | |
3 | * | |
66321a11 | 4 | * Copyright (c) 2003-2005 Fabrice Bellard |
7d13299d | 5 | * |
3ef693a0 FB |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
7d13299d | 10 | * |
3ef693a0 FB |
11 | * This library 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 GNU | |
14 | * Lesser General Public License for more details. | |
7d13299d | 15 | * |
3ef693a0 FB |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with this library; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
7d13299d | 19 | */ |
e4533c7a | 20 | #include "config.h" |
93ac68bc | 21 | #include "exec.h" |
956034d7 | 22 | #include "disas.h" |
7d13299d | 23 | |
fbf9eeb3 FB |
24 | #if !defined(CONFIG_SOFTMMU) |
25 | #undef EAX | |
26 | #undef ECX | |
27 | #undef EDX | |
28 | #undef EBX | |
29 | #undef ESP | |
30 | #undef EBP | |
31 | #undef ESI | |
32 | #undef EDI | |
33 | #undef EIP | |
34 | #include <signal.h> | |
35 | #include <sys/ucontext.h> | |
36 | #endif | |
37 | ||
36bdbe54 FB |
38 | int tb_invalidated_flag; |
39 | ||
dc99065b | 40 | //#define DEBUG_EXEC |
9de5e440 | 41 | //#define DEBUG_SIGNAL |
7d13299d | 42 | |
e6e5906b | 43 | #if defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_M68K) |
e4533c7a FB |
44 | /* XXX: unify with i386 target */ |
45 | void cpu_loop_exit(void) | |
46 | { | |
47 | longjmp(env->jmp_env, 1); | |
48 | } | |
49 | #endif | |
e6e5906b | 50 | #if !(defined(TARGET_SPARC) || defined(TARGET_SH4) || defined(TARGET_M68K)) |
3475187d FB |
51 | #define reg_T2 |
52 | #endif | |
e4533c7a | 53 | |
fbf9eeb3 FB |
54 | /* exit the current TB from a signal handler. The host registers are |
55 | restored in a state compatible with the CPU emulator | |
56 | */ | |
57 | void cpu_resume_from_signal(CPUState *env1, void *puc) | |
58 | { | |
59 | #if !defined(CONFIG_SOFTMMU) | |
60 | struct ucontext *uc = puc; | |
61 | #endif | |
62 | ||
63 | env = env1; | |
64 | ||
65 | /* XXX: restore cpu registers saved in host registers */ | |
66 | ||
67 | #if !defined(CONFIG_SOFTMMU) | |
68 | if (puc) { | |
69 | /* XXX: use siglongjmp ? */ | |
70 | sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL); | |
71 | } | |
72 | #endif | |
73 | longjmp(env->jmp_env, 1); | |
74 | } | |
75 | ||
8a40a180 FB |
76 | |
77 | static TranslationBlock *tb_find_slow(target_ulong pc, | |
78 | target_ulong cs_base, | |
79 | unsigned int flags) | |
80 | { | |
81 | TranslationBlock *tb, **ptb1; | |
82 | int code_gen_size; | |
83 | unsigned int h; | |
84 | target_ulong phys_pc, phys_page1, phys_page2, virt_page2; | |
85 | uint8_t *tc_ptr; | |
86 | ||
87 | spin_lock(&tb_lock); | |
88 | ||
89 | tb_invalidated_flag = 0; | |
90 | ||
91 | regs_to_env(); /* XXX: do it just before cpu_gen_code() */ | |
92 | ||
93 | /* find translated block using physical mappings */ | |
94 | phys_pc = get_phys_addr_code(env, pc); | |
95 | phys_page1 = phys_pc & TARGET_PAGE_MASK; | |
96 | phys_page2 = -1; | |
97 | h = tb_phys_hash_func(phys_pc); | |
98 | ptb1 = &tb_phys_hash[h]; | |
99 | for(;;) { | |
100 | tb = *ptb1; | |
101 | if (!tb) | |
102 | goto not_found; | |
103 | if (tb->pc == pc && | |
104 | tb->page_addr[0] == phys_page1 && | |
105 | tb->cs_base == cs_base && | |
106 | tb->flags == flags) { | |
107 | /* check next page if needed */ | |
108 | if (tb->page_addr[1] != -1) { | |
109 | virt_page2 = (pc & TARGET_PAGE_MASK) + | |
110 | TARGET_PAGE_SIZE; | |
111 | phys_page2 = get_phys_addr_code(env, virt_page2); | |
112 | if (tb->page_addr[1] == phys_page2) | |
113 | goto found; | |
114 | } else { | |
115 | goto found; | |
116 | } | |
117 | } | |
118 | ptb1 = &tb->phys_hash_next; | |
119 | } | |
120 | not_found: | |
121 | /* if no translated code available, then translate it now */ | |
122 | tb = tb_alloc(pc); | |
123 | if (!tb) { | |
124 | /* flush must be done */ | |
125 | tb_flush(env); | |
126 | /* cannot fail at this point */ | |
127 | tb = tb_alloc(pc); | |
128 | /* don't forget to invalidate previous TB info */ | |
15388002 | 129 | tb_invalidated_flag = 1; |
8a40a180 FB |
130 | } |
131 | tc_ptr = code_gen_ptr; | |
132 | tb->tc_ptr = tc_ptr; | |
133 | tb->cs_base = cs_base; | |
134 | tb->flags = flags; | |
135 | cpu_gen_code(env, tb, CODE_GEN_MAX_SIZE, &code_gen_size); | |
136 | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); | |
137 | ||
138 | /* check next page if needed */ | |
139 | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK; | |
140 | phys_page2 = -1; | |
141 | if ((pc & TARGET_PAGE_MASK) != virt_page2) { | |
142 | phys_page2 = get_phys_addr_code(env, virt_page2); | |
143 | } | |
144 | tb_link_phys(tb, phys_pc, phys_page2); | |
145 | ||
146 | found: | |
8a40a180 FB |
147 | /* we add the TB in the virtual pc hash table */ |
148 | env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)] = tb; | |
149 | spin_unlock(&tb_lock); | |
150 | return tb; | |
151 | } | |
152 | ||
153 | static inline TranslationBlock *tb_find_fast(void) | |
154 | { | |
155 | TranslationBlock *tb; | |
156 | target_ulong cs_base, pc; | |
157 | unsigned int flags; | |
158 | ||
159 | /* we record a subset of the CPU state. It will | |
160 | always be the same before a given translated block | |
161 | is executed. */ | |
162 | #if defined(TARGET_I386) | |
163 | flags = env->hflags; | |
164 | flags |= (env->eflags & (IOPL_MASK | TF_MASK | VM_MASK)); | |
165 | cs_base = env->segs[R_CS].base; | |
166 | pc = cs_base + env->eip; | |
167 | #elif defined(TARGET_ARM) | |
168 | flags = env->thumb | (env->vfp.vec_len << 1) | |
b5ff1b31 FB |
169 | | (env->vfp.vec_stride << 4); |
170 | if ((env->uncached_cpsr & CPSR_M) != ARM_CPU_MODE_USR) | |
171 | flags |= (1 << 6); | |
40f137e1 PB |
172 | if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) |
173 | flags |= (1 << 7); | |
8a40a180 FB |
174 | cs_base = 0; |
175 | pc = env->regs[15]; | |
176 | #elif defined(TARGET_SPARC) | |
177 | #ifdef TARGET_SPARC64 | |
a80dde08 FB |
178 | // Combined FPU enable bits . PRIV . DMMU enabled . IMMU enabled |
179 | flags = (((env->pstate & PS_PEF) >> 1) | ((env->fprs & FPRS_FEF) << 2)) | |
180 | | (env->pstate & PS_PRIV) | ((env->lsu & (DMMU_E | IMMU_E)) >> 2); | |
8a40a180 | 181 | #else |
a80dde08 FB |
182 | // FPU enable . MMU enabled . MMU no-fault . Supervisor |
183 | flags = (env->psref << 3) | ((env->mmuregs[0] & (MMU_E | MMU_NF)) << 1) | |
184 | | env->psrs; | |
8a40a180 FB |
185 | #endif |
186 | cs_base = env->npc; | |
187 | pc = env->pc; | |
188 | #elif defined(TARGET_PPC) | |
189 | flags = (msr_pr << MSR_PR) | (msr_fp << MSR_FP) | | |
190 | (msr_se << MSR_SE) | (msr_le << MSR_LE); | |
191 | cs_base = 0; | |
192 | pc = env->nip; | |
193 | #elif defined(TARGET_MIPS) | |
56b19403 | 194 | flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK); |
cc9442b9 | 195 | cs_base = 0; |
8a40a180 | 196 | pc = env->PC; |
e6e5906b PB |
197 | #elif defined(TARGET_M68K) |
198 | flags = env->fpcr & M68K_FPCR_PREC; | |
199 | cs_base = 0; | |
200 | pc = env->pc; | |
fdf9b3e8 FB |
201 | #elif defined(TARGET_SH4) |
202 | flags = env->sr & (SR_MD | SR_RB); | |
203 | cs_base = 0; /* XXXXX */ | |
204 | pc = env->pc; | |
8a40a180 FB |
205 | #else |
206 | #error unsupported CPU | |
207 | #endif | |
208 | tb = env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)]; | |
209 | if (__builtin_expect(!tb || tb->pc != pc || tb->cs_base != cs_base || | |
210 | tb->flags != flags, 0)) { | |
211 | tb = tb_find_slow(pc, cs_base, flags); | |
15388002 FB |
212 | /* Note: we do it here to avoid a gcc bug on Mac OS X when |
213 | doing it in tb_find_slow */ | |
214 | if (tb_invalidated_flag) { | |
215 | /* as some TB could have been invalidated because | |
216 | of memory exceptions while generating the code, we | |
217 | must recompute the hash index here */ | |
218 | T0 = 0; | |
219 | } | |
8a40a180 FB |
220 | } |
221 | return tb; | |
222 | } | |
223 | ||
224 | ||
7d13299d FB |
225 | /* main execution loop */ |
226 | ||
e4533c7a | 227 | int cpu_exec(CPUState *env1) |
7d13299d | 228 | { |
1057eaa7 PB |
229 | #define DECLARE_HOST_REGS 1 |
230 | #include "hostregs_helper.h" | |
231 | #if defined(TARGET_SPARC) | |
3475187d FB |
232 | #if defined(reg_REGWPTR) |
233 | uint32_t *saved_regwptr; | |
234 | #endif | |
235 | #endif | |
fdbb4691 | 236 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
b49d07ba TS |
237 | int saved_i7; |
238 | target_ulong tmp_T0; | |
04369ff2 | 239 | #endif |
8a40a180 | 240 | int ret, interrupt_request; |
7d13299d | 241 | void (*gen_func)(void); |
8a40a180 | 242 | TranslationBlock *tb; |
c27004ec | 243 | uint8_t *tc_ptr; |
8c6939c0 | 244 | |
5a1e3cfc FB |
245 | #if defined(TARGET_I386) |
246 | /* handle exit of HALTED state */ | |
247 | if (env1->hflags & HF_HALTED_MASK) { | |
248 | /* disable halt condition */ | |
249 | if ((env1->interrupt_request & CPU_INTERRUPT_HARD) && | |
250 | (env1->eflags & IF_MASK)) { | |
251 | env1->hflags &= ~HF_HALTED_MASK; | |
252 | } else { | |
253 | return EXCP_HALTED; | |
e80e1cc4 FB |
254 | } |
255 | } | |
256 | #elif defined(TARGET_PPC) | |
50443c98 | 257 | if (env1->halted) { |
e80e1cc4 | 258 | if (env1->msr[MSR_EE] && |
47103572 | 259 | (env1->interrupt_request & CPU_INTERRUPT_HARD)) { |
50443c98 | 260 | env1->halted = 0; |
e80e1cc4 FB |
261 | } else { |
262 | return EXCP_HALTED; | |
5a1e3cfc FB |
263 | } |
264 | } | |
ba3c64fb FB |
265 | #elif defined(TARGET_SPARC) |
266 | if (env1->halted) { | |
267 | if ((env1->interrupt_request & CPU_INTERRUPT_HARD) && | |
268 | (env1->psret != 0)) { | |
269 | env1->halted = 0; | |
270 | } else { | |
271 | return EXCP_HALTED; | |
272 | } | |
273 | } | |
9332f9da FB |
274 | #elif defined(TARGET_ARM) |
275 | if (env1->halted) { | |
276 | /* An interrupt wakes the CPU even if the I and F CPSR bits are | |
277 | set. */ | |
278 | if (env1->interrupt_request | |
279 | & (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD)) { | |
280 | env1->halted = 0; | |
281 | } else { | |
282 | return EXCP_HALTED; | |
283 | } | |
284 | } | |
6810e154 FB |
285 | #elif defined(TARGET_MIPS) |
286 | if (env1->halted) { | |
287 | if (env1->interrupt_request & | |
288 | (CPU_INTERRUPT_HARD | CPU_INTERRUPT_TIMER)) { | |
289 | env1->halted = 0; | |
290 | } else { | |
291 | return EXCP_HALTED; | |
292 | } | |
293 | } | |
5a1e3cfc FB |
294 | #endif |
295 | ||
6a00d601 FB |
296 | cpu_single_env = env1; |
297 | ||
7d13299d | 298 | /* first we save global registers */ |
1057eaa7 PB |
299 | #define SAVE_HOST_REGS 1 |
300 | #include "hostregs_helper.h" | |
c27004ec | 301 | env = env1; |
fdbb4691 | 302 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
e4533c7a FB |
303 | /* we also save i7 because longjmp may not restore it */ |
304 | asm volatile ("mov %%i7, %0" : "=r" (saved_i7)); | |
305 | #endif | |
306 | ||
307 | #if defined(TARGET_I386) | |
0d1a29f9 | 308 | env_to_regs(); |
9de5e440 | 309 | /* put eflags in CPU temporary format */ |
fc2b4c48 FB |
310 | CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
311 | DF = 1 - (2 * ((env->eflags >> 10) & 1)); | |
9de5e440 | 312 | CC_OP = CC_OP_EFLAGS; |
fc2b4c48 | 313 | env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
e4533c7a | 314 | #elif defined(TARGET_ARM) |
93ac68bc | 315 | #elif defined(TARGET_SPARC) |
3475187d FB |
316 | #if defined(reg_REGWPTR) |
317 | saved_regwptr = REGWPTR; | |
318 | #endif | |
67867308 | 319 | #elif defined(TARGET_PPC) |
e6e5906b PB |
320 | #elif defined(TARGET_M68K) |
321 | env->cc_op = CC_OP_FLAGS; | |
322 | env->cc_dest = env->sr & 0xf; | |
323 | env->cc_x = (env->sr >> 4) & 1; | |
6af0bf9c | 324 | #elif defined(TARGET_MIPS) |
fdf9b3e8 FB |
325 | #elif defined(TARGET_SH4) |
326 | /* XXXXX */ | |
e4533c7a FB |
327 | #else |
328 | #error unsupported target CPU | |
329 | #endif | |
3fb2ded1 | 330 | env->exception_index = -1; |
9d27abd9 | 331 | |
7d13299d | 332 | /* prepare setjmp context for exception handling */ |
3fb2ded1 FB |
333 | for(;;) { |
334 | if (setjmp(env->jmp_env) == 0) { | |
ee8b7021 | 335 | env->current_tb = NULL; |
3fb2ded1 FB |
336 | /* if an exception is pending, we execute it here */ |
337 | if (env->exception_index >= 0) { | |
338 | if (env->exception_index >= EXCP_INTERRUPT) { | |
339 | /* exit request from the cpu execution loop */ | |
340 | ret = env->exception_index; | |
341 | break; | |
342 | } else if (env->user_mode_only) { | |
343 | /* if user mode only, we simulate a fake exception | |
9f083493 | 344 | which will be handled outside the cpu execution |
3fb2ded1 | 345 | loop */ |
83479e77 | 346 | #if defined(TARGET_I386) |
3fb2ded1 FB |
347 | do_interrupt_user(env->exception_index, |
348 | env->exception_is_int, | |
349 | env->error_code, | |
350 | env->exception_next_eip); | |
83479e77 | 351 | #endif |
3fb2ded1 FB |
352 | ret = env->exception_index; |
353 | break; | |
354 | } else { | |
83479e77 | 355 | #if defined(TARGET_I386) |
3fb2ded1 FB |
356 | /* simulate a real cpu exception. On i386, it can |
357 | trigger new exceptions, but we do not handle | |
358 | double or triple faults yet. */ | |
359 | do_interrupt(env->exception_index, | |
360 | env->exception_is_int, | |
361 | env->error_code, | |
d05e66d2 | 362 | env->exception_next_eip, 0); |
ce09776b FB |
363 | #elif defined(TARGET_PPC) |
364 | do_interrupt(env); | |
6af0bf9c FB |
365 | #elif defined(TARGET_MIPS) |
366 | do_interrupt(env); | |
e95c8d51 | 367 | #elif defined(TARGET_SPARC) |
1a0c3292 | 368 | do_interrupt(env->exception_index); |
b5ff1b31 FB |
369 | #elif defined(TARGET_ARM) |
370 | do_interrupt(env); | |
fdf9b3e8 FB |
371 | #elif defined(TARGET_SH4) |
372 | do_interrupt(env); | |
83479e77 | 373 | #endif |
3fb2ded1 FB |
374 | } |
375 | env->exception_index = -1; | |
9df217a3 FB |
376 | } |
377 | #ifdef USE_KQEMU | |
378 | if (kqemu_is_ok(env) && env->interrupt_request == 0) { | |
379 | int ret; | |
380 | env->eflags = env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK); | |
381 | ret = kqemu_cpu_exec(env); | |
382 | /* put eflags in CPU temporary format */ | |
383 | CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
384 | DF = 1 - (2 * ((env->eflags >> 10) & 1)); | |
385 | CC_OP = CC_OP_EFLAGS; | |
386 | env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
387 | if (ret == 1) { | |
388 | /* exception */ | |
389 | longjmp(env->jmp_env, 1); | |
390 | } else if (ret == 2) { | |
391 | /* softmmu execution needed */ | |
392 | } else { | |
393 | if (env->interrupt_request != 0) { | |
394 | /* hardware interrupt will be executed just after */ | |
395 | } else { | |
396 | /* otherwise, we restart */ | |
397 | longjmp(env->jmp_env, 1); | |
398 | } | |
399 | } | |
3fb2ded1 | 400 | } |
9df217a3 FB |
401 | #endif |
402 | ||
3fb2ded1 FB |
403 | T0 = 0; /* force lookup of first TB */ |
404 | for(;;) { | |
fdbb4691 | 405 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
3fb2ded1 FB |
406 | /* g1 can be modified by some libc? functions */ |
407 | tmp_T0 = T0; | |
8c6939c0 | 408 | #endif |
68a79315 | 409 | interrupt_request = env->interrupt_request; |
2e255c6b | 410 | if (__builtin_expect(interrupt_request, 0)) { |
6658ffb8 PB |
411 | if (interrupt_request & CPU_INTERRUPT_DEBUG) { |
412 | env->interrupt_request &= ~CPU_INTERRUPT_DEBUG; | |
413 | env->exception_index = EXCP_DEBUG; | |
414 | cpu_loop_exit(); | |
415 | } | |
68a79315 | 416 | #if defined(TARGET_I386) |
3b21e03e FB |
417 | if ((interrupt_request & CPU_INTERRUPT_SMI) && |
418 | !(env->hflags & HF_SMM_MASK)) { | |
419 | env->interrupt_request &= ~CPU_INTERRUPT_SMI; | |
420 | do_smm_enter(); | |
421 | #if defined(__sparc__) && !defined(HOST_SOLARIS) | |
422 | tmp_T0 = 0; | |
423 | #else | |
424 | T0 = 0; | |
425 | #endif | |
426 | } else if ((interrupt_request & CPU_INTERRUPT_HARD) && | |
3f337316 FB |
427 | (env->eflags & IF_MASK) && |
428 | !(env->hflags & HF_INHIBIT_IRQ_MASK)) { | |
68a79315 | 429 | int intno; |
fbf9eeb3 | 430 | env->interrupt_request &= ~CPU_INTERRUPT_HARD; |
a541f297 | 431 | intno = cpu_get_pic_interrupt(env); |
f193c797 | 432 | if (loglevel & CPU_LOG_TB_IN_ASM) { |
68a79315 FB |
433 | fprintf(logfile, "Servicing hardware INT=0x%02x\n", intno); |
434 | } | |
d05e66d2 | 435 | do_interrupt(intno, 0, 0, 0, 1); |
907a5b26 FB |
436 | /* ensure that no TB jump will be modified as |
437 | the program flow was changed */ | |
fdbb4691 | 438 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
907a5b26 FB |
439 | tmp_T0 = 0; |
440 | #else | |
441 | T0 = 0; | |
442 | #endif | |
68a79315 | 443 | } |
ce09776b | 444 | #elif defined(TARGET_PPC) |
9fddaa0c FB |
445 | #if 0 |
446 | if ((interrupt_request & CPU_INTERRUPT_RESET)) { | |
447 | cpu_ppc_reset(env); | |
448 | } | |
449 | #endif | |
47103572 JM |
450 | if (interrupt_request & CPU_INTERRUPT_HARD) { |
451 | if (ppc_hw_interrupt(env) == 1) { | |
452 | /* Some exception was raised */ | |
453 | if (env->pending_interrupts == 0) | |
454 | env->interrupt_request &= ~CPU_INTERRUPT_HARD; | |
fdbb4691 | 455 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
8a40a180 FB |
456 | tmp_T0 = 0; |
457 | #else | |
458 | T0 = 0; | |
459 | #endif | |
460 | } | |
ce09776b | 461 | } |
6af0bf9c FB |
462 | #elif defined(TARGET_MIPS) |
463 | if ((interrupt_request & CPU_INTERRUPT_HARD) && | |
24c7b0e3 | 464 | (env->CP0_Status & env->CP0_Cause & CP0Ca_IP_mask) && |
6af0bf9c | 465 | (env->CP0_Status & (1 << CP0St_IE)) && |
24c7b0e3 TS |
466 | !(env->CP0_Status & (1 << CP0St_EXL)) && |
467 | !(env->CP0_Status & (1 << CP0St_ERL)) && | |
6af0bf9c FB |
468 | !(env->hflags & MIPS_HFLAG_DM)) { |
469 | /* Raise it */ | |
470 | env->exception_index = EXCP_EXT_INTERRUPT; | |
471 | env->error_code = 0; | |
472 | do_interrupt(env); | |
fdbb4691 | 473 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
8a40a180 FB |
474 | tmp_T0 = 0; |
475 | #else | |
476 | T0 = 0; | |
477 | #endif | |
6af0bf9c | 478 | } |
e95c8d51 | 479 | #elif defined(TARGET_SPARC) |
66321a11 FB |
480 | if ((interrupt_request & CPU_INTERRUPT_HARD) && |
481 | (env->psret != 0)) { | |
482 | int pil = env->interrupt_index & 15; | |
483 | int type = env->interrupt_index & 0xf0; | |
484 | ||
485 | if (((type == TT_EXTINT) && | |
486 | (pil == 15 || pil > env->psrpil)) || | |
487 | type != TT_EXTINT) { | |
488 | env->interrupt_request &= ~CPU_INTERRUPT_HARD; | |
489 | do_interrupt(env->interrupt_index); | |
490 | env->interrupt_index = 0; | |
fdbb4691 | 491 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
8a40a180 FB |
492 | tmp_T0 = 0; |
493 | #else | |
494 | T0 = 0; | |
495 | #endif | |
66321a11 | 496 | } |
e95c8d51 FB |
497 | } else if (interrupt_request & CPU_INTERRUPT_TIMER) { |
498 | //do_interrupt(0, 0, 0, 0, 0); | |
499 | env->interrupt_request &= ~CPU_INTERRUPT_TIMER; | |
ba3c64fb | 500 | } else if (interrupt_request & CPU_INTERRUPT_HALT) { |
df52b000 FB |
501 | env->interrupt_request &= ~CPU_INTERRUPT_HALT; |
502 | env->halted = 1; | |
503 | env->exception_index = EXCP_HLT; | |
504 | cpu_loop_exit(); | |
ba3c64fb | 505 | } |
b5ff1b31 FB |
506 | #elif defined(TARGET_ARM) |
507 | if (interrupt_request & CPU_INTERRUPT_FIQ | |
508 | && !(env->uncached_cpsr & CPSR_F)) { | |
509 | env->exception_index = EXCP_FIQ; | |
510 | do_interrupt(env); | |
511 | } | |
512 | if (interrupt_request & CPU_INTERRUPT_HARD | |
513 | && !(env->uncached_cpsr & CPSR_I)) { | |
514 | env->exception_index = EXCP_IRQ; | |
515 | do_interrupt(env); | |
516 | } | |
fdf9b3e8 FB |
517 | #elif defined(TARGET_SH4) |
518 | /* XXXXX */ | |
68a79315 | 519 | #endif |
9d05095e FB |
520 | /* Don't use the cached interupt_request value, |
521 | do_interrupt may have updated the EXITTB flag. */ | |
b5ff1b31 | 522 | if (env->interrupt_request & CPU_INTERRUPT_EXITTB) { |
bf3e8bf1 FB |
523 | env->interrupt_request &= ~CPU_INTERRUPT_EXITTB; |
524 | /* ensure that no TB jump will be modified as | |
525 | the program flow was changed */ | |
fdbb4691 | 526 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
bf3e8bf1 FB |
527 | tmp_T0 = 0; |
528 | #else | |
529 | T0 = 0; | |
530 | #endif | |
531 | } | |
68a79315 FB |
532 | if (interrupt_request & CPU_INTERRUPT_EXIT) { |
533 | env->interrupt_request &= ~CPU_INTERRUPT_EXIT; | |
534 | env->exception_index = EXCP_INTERRUPT; | |
535 | cpu_loop_exit(); | |
536 | } | |
3fb2ded1 | 537 | } |
7d13299d | 538 | #ifdef DEBUG_EXEC |
b5ff1b31 | 539 | if ((loglevel & CPU_LOG_TB_CPU)) { |
e4533c7a | 540 | #if defined(TARGET_I386) |
3fb2ded1 | 541 | /* restore flags in standard format */ |
fc9f715d | 542 | #ifdef reg_EAX |
3fb2ded1 | 543 | env->regs[R_EAX] = EAX; |
fc9f715d FB |
544 | #endif |
545 | #ifdef reg_EBX | |
3fb2ded1 | 546 | env->regs[R_EBX] = EBX; |
fc9f715d FB |
547 | #endif |
548 | #ifdef reg_ECX | |
3fb2ded1 | 549 | env->regs[R_ECX] = ECX; |
fc9f715d FB |
550 | #endif |
551 | #ifdef reg_EDX | |
3fb2ded1 | 552 | env->regs[R_EDX] = EDX; |
fc9f715d FB |
553 | #endif |
554 | #ifdef reg_ESI | |
3fb2ded1 | 555 | env->regs[R_ESI] = ESI; |
fc9f715d FB |
556 | #endif |
557 | #ifdef reg_EDI | |
3fb2ded1 | 558 | env->regs[R_EDI] = EDI; |
fc9f715d FB |
559 | #endif |
560 | #ifdef reg_EBP | |
3fb2ded1 | 561 | env->regs[R_EBP] = EBP; |
fc9f715d FB |
562 | #endif |
563 | #ifdef reg_ESP | |
3fb2ded1 | 564 | env->regs[R_ESP] = ESP; |
fc9f715d | 565 | #endif |
3fb2ded1 | 566 | env->eflags = env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK); |
7fe48483 | 567 | cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP); |
3fb2ded1 | 568 | env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
e4533c7a | 569 | #elif defined(TARGET_ARM) |
7fe48483 | 570 | cpu_dump_state(env, logfile, fprintf, 0); |
93ac68bc | 571 | #elif defined(TARGET_SPARC) |
3475187d FB |
572 | REGWPTR = env->regbase + (env->cwp * 16); |
573 | env->regwptr = REGWPTR; | |
574 | cpu_dump_state(env, logfile, fprintf, 0); | |
67867308 | 575 | #elif defined(TARGET_PPC) |
7fe48483 | 576 | cpu_dump_state(env, logfile, fprintf, 0); |
e6e5906b PB |
577 | #elif defined(TARGET_M68K) |
578 | cpu_m68k_flush_flags(env, env->cc_op); | |
579 | env->cc_op = CC_OP_FLAGS; | |
580 | env->sr = (env->sr & 0xffe0) | |
581 | | env->cc_dest | (env->cc_x << 4); | |
582 | cpu_dump_state(env, logfile, fprintf, 0); | |
6af0bf9c FB |
583 | #elif defined(TARGET_MIPS) |
584 | cpu_dump_state(env, logfile, fprintf, 0); | |
fdf9b3e8 FB |
585 | #elif defined(TARGET_SH4) |
586 | cpu_dump_state(env, logfile, fprintf, 0); | |
e4533c7a FB |
587 | #else |
588 | #error unsupported target CPU | |
589 | #endif | |
3fb2ded1 | 590 | } |
7d13299d | 591 | #endif |
8a40a180 | 592 | tb = tb_find_fast(); |
9d27abd9 | 593 | #ifdef DEBUG_EXEC |
c1135f61 | 594 | if ((loglevel & CPU_LOG_EXEC)) { |
c27004ec FB |
595 | fprintf(logfile, "Trace 0x%08lx [" TARGET_FMT_lx "] %s\n", |
596 | (long)tb->tc_ptr, tb->pc, | |
597 | lookup_symbol(tb->pc)); | |
3fb2ded1 | 598 | } |
9d27abd9 | 599 | #endif |
fdbb4691 | 600 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
3fb2ded1 | 601 | T0 = tmp_T0; |
8c6939c0 | 602 | #endif |
8a40a180 FB |
603 | /* see if we can patch the calling TB. When the TB |
604 | spans two pages, we cannot safely do a direct | |
605 | jump. */ | |
c27004ec | 606 | { |
8a40a180 | 607 | if (T0 != 0 && |
f32fc648 FB |
608 | #if USE_KQEMU |
609 | (env->kqemu_enabled != 2) && | |
610 | #endif | |
8a40a180 | 611 | tb->page_addr[1] == -1 |
bf3e8bf1 FB |
612 | #if defined(TARGET_I386) && defined(USE_CODE_COPY) |
613 | && (tb->cflags & CF_CODE_COPY) == | |
614 | (((TranslationBlock *)(T0 & ~3))->cflags & CF_CODE_COPY) | |
615 | #endif | |
616 | ) { | |
3fb2ded1 | 617 | spin_lock(&tb_lock); |
c27004ec | 618 | tb_add_jump((TranslationBlock *)(long)(T0 & ~3), T0 & 3, tb); |
97eb5b14 FB |
619 | #if defined(USE_CODE_COPY) |
620 | /* propagates the FP use info */ | |
621 | ((TranslationBlock *)(T0 & ~3))->cflags |= | |
622 | (tb->cflags & CF_FP_USED); | |
623 | #endif | |
3fb2ded1 FB |
624 | spin_unlock(&tb_lock); |
625 | } | |
c27004ec | 626 | } |
3fb2ded1 | 627 | tc_ptr = tb->tc_ptr; |
83479e77 | 628 | env->current_tb = tb; |
3fb2ded1 FB |
629 | /* execute the generated code */ |
630 | gen_func = (void *)tc_ptr; | |
8c6939c0 | 631 | #if defined(__sparc__) |
3fb2ded1 FB |
632 | __asm__ __volatile__("call %0\n\t" |
633 | "mov %%o7,%%i0" | |
634 | : /* no outputs */ | |
635 | : "r" (gen_func) | |
fdbb4691 | 636 | : "i0", "i1", "i2", "i3", "i4", "i5", |
faab7592 | 637 | "o0", "o1", "o2", "o3", "o4", "o5", |
fdbb4691 FB |
638 | "l0", "l1", "l2", "l3", "l4", "l5", |
639 | "l6", "l7"); | |
8c6939c0 | 640 | #elif defined(__arm__) |
3fb2ded1 FB |
641 | asm volatile ("mov pc, %0\n\t" |
642 | ".global exec_loop\n\t" | |
643 | "exec_loop:\n\t" | |
644 | : /* no outputs */ | |
645 | : "r" (gen_func) | |
646 | : "r1", "r2", "r3", "r8", "r9", "r10", "r12", "r14"); | |
bf3e8bf1 FB |
647 | #elif defined(TARGET_I386) && defined(USE_CODE_COPY) |
648 | { | |
649 | if (!(tb->cflags & CF_CODE_COPY)) { | |
97eb5b14 FB |
650 | if ((tb->cflags & CF_FP_USED) && env->native_fp_regs) { |
651 | save_native_fp_state(env); | |
652 | } | |
bf3e8bf1 FB |
653 | gen_func(); |
654 | } else { | |
97eb5b14 FB |
655 | if ((tb->cflags & CF_FP_USED) && !env->native_fp_regs) { |
656 | restore_native_fp_state(env); | |
657 | } | |
bf3e8bf1 FB |
658 | /* we work with native eflags */ |
659 | CC_SRC = cc_table[CC_OP].compute_all(); | |
660 | CC_OP = CC_OP_EFLAGS; | |
661 | asm(".globl exec_loop\n" | |
662 | "\n" | |
663 | "debug1:\n" | |
664 | " pushl %%ebp\n" | |
665 | " fs movl %10, %9\n" | |
666 | " fs movl %11, %%eax\n" | |
667 | " andl $0x400, %%eax\n" | |
668 | " fs orl %8, %%eax\n" | |
669 | " pushl %%eax\n" | |
670 | " popf\n" | |
671 | " fs movl %%esp, %12\n" | |
672 | " fs movl %0, %%eax\n" | |
673 | " fs movl %1, %%ecx\n" | |
674 | " fs movl %2, %%edx\n" | |
675 | " fs movl %3, %%ebx\n" | |
676 | " fs movl %4, %%esp\n" | |
677 | " fs movl %5, %%ebp\n" | |
678 | " fs movl %6, %%esi\n" | |
679 | " fs movl %7, %%edi\n" | |
680 | " fs jmp *%9\n" | |
681 | "exec_loop:\n" | |
682 | " fs movl %%esp, %4\n" | |
683 | " fs movl %12, %%esp\n" | |
684 | " fs movl %%eax, %0\n" | |
685 | " fs movl %%ecx, %1\n" | |
686 | " fs movl %%edx, %2\n" | |
687 | " fs movl %%ebx, %3\n" | |
688 | " fs movl %%ebp, %5\n" | |
689 | " fs movl %%esi, %6\n" | |
690 | " fs movl %%edi, %7\n" | |
691 | " pushf\n" | |
692 | " popl %%eax\n" | |
693 | " movl %%eax, %%ecx\n" | |
694 | " andl $0x400, %%ecx\n" | |
695 | " shrl $9, %%ecx\n" | |
696 | " andl $0x8d5, %%eax\n" | |
697 | " fs movl %%eax, %8\n" | |
698 | " movl $1, %%eax\n" | |
699 | " subl %%ecx, %%eax\n" | |
700 | " fs movl %%eax, %11\n" | |
701 | " fs movl %9, %%ebx\n" /* get T0 value */ | |
702 | " popl %%ebp\n" | |
703 | : | |
704 | : "m" (*(uint8_t *)offsetof(CPUState, regs[0])), | |
705 | "m" (*(uint8_t *)offsetof(CPUState, regs[1])), | |
706 | "m" (*(uint8_t *)offsetof(CPUState, regs[2])), | |
707 | "m" (*(uint8_t *)offsetof(CPUState, regs[3])), | |
708 | "m" (*(uint8_t *)offsetof(CPUState, regs[4])), | |
709 | "m" (*(uint8_t *)offsetof(CPUState, regs[5])), | |
710 | "m" (*(uint8_t *)offsetof(CPUState, regs[6])), | |
711 | "m" (*(uint8_t *)offsetof(CPUState, regs[7])), | |
712 | "m" (*(uint8_t *)offsetof(CPUState, cc_src)), | |
713 | "m" (*(uint8_t *)offsetof(CPUState, tmp0)), | |
714 | "a" (gen_func), | |
715 | "m" (*(uint8_t *)offsetof(CPUState, df)), | |
716 | "m" (*(uint8_t *)offsetof(CPUState, saved_esp)) | |
717 | : "%ecx", "%edx" | |
718 | ); | |
719 | } | |
720 | } | |
b8076a74 FB |
721 | #elif defined(__ia64) |
722 | struct fptr { | |
723 | void *ip; | |
724 | void *gp; | |
725 | } fp; | |
726 | ||
727 | fp.ip = tc_ptr; | |
728 | fp.gp = code_gen_buffer + 2 * (1 << 20); | |
729 | (*(void (*)(void)) &fp)(); | |
ae228531 | 730 | #else |
3fb2ded1 | 731 | gen_func(); |
ae228531 | 732 | #endif |
83479e77 | 733 | env->current_tb = NULL; |
4cbf74b6 FB |
734 | /* reset soft MMU for next block (it can currently |
735 | only be set by a memory fault) */ | |
736 | #if defined(TARGET_I386) && !defined(CONFIG_SOFTMMU) | |
3f337316 FB |
737 | if (env->hflags & HF_SOFTMMU_MASK) { |
738 | env->hflags &= ~HF_SOFTMMU_MASK; | |
4cbf74b6 FB |
739 | /* do not allow linking to another block */ |
740 | T0 = 0; | |
741 | } | |
f32fc648 FB |
742 | #endif |
743 | #if defined(USE_KQEMU) | |
744 | #define MIN_CYCLE_BEFORE_SWITCH (100 * 1000) | |
745 | if (kqemu_is_ok(env) && | |
746 | (cpu_get_time_fast() - env->last_io_time) >= MIN_CYCLE_BEFORE_SWITCH) { | |
747 | cpu_loop_exit(); | |
748 | } | |
4cbf74b6 | 749 | #endif |
3fb2ded1 FB |
750 | } |
751 | } else { | |
0d1a29f9 | 752 | env_to_regs(); |
7d13299d | 753 | } |
3fb2ded1 FB |
754 | } /* for(;;) */ |
755 | ||
7d13299d | 756 | |
e4533c7a | 757 | #if defined(TARGET_I386) |
97eb5b14 FB |
758 | #if defined(USE_CODE_COPY) |
759 | if (env->native_fp_regs) { | |
760 | save_native_fp_state(env); | |
761 | } | |
762 | #endif | |
9de5e440 | 763 | /* restore flags in standard format */ |
fc2b4c48 | 764 | env->eflags = env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK); |
e4533c7a | 765 | #elif defined(TARGET_ARM) |
b7bcbe95 | 766 | /* XXX: Save/restore host fpu exception state?. */ |
93ac68bc | 767 | #elif defined(TARGET_SPARC) |
3475187d FB |
768 | #if defined(reg_REGWPTR) |
769 | REGWPTR = saved_regwptr; | |
770 | #endif | |
67867308 | 771 | #elif defined(TARGET_PPC) |
e6e5906b PB |
772 | #elif defined(TARGET_M68K) |
773 | cpu_m68k_flush_flags(env, env->cc_op); | |
774 | env->cc_op = CC_OP_FLAGS; | |
775 | env->sr = (env->sr & 0xffe0) | |
776 | | env->cc_dest | (env->cc_x << 4); | |
6af0bf9c | 777 | #elif defined(TARGET_MIPS) |
fdf9b3e8 FB |
778 | #elif defined(TARGET_SH4) |
779 | /* XXXXX */ | |
e4533c7a FB |
780 | #else |
781 | #error unsupported target CPU | |
782 | #endif | |
1057eaa7 PB |
783 | |
784 | /* restore global registers */ | |
fdbb4691 | 785 | #if defined(__sparc__) && !defined(HOST_SOLARIS) |
8c6939c0 | 786 | asm volatile ("mov %0, %%i7" : : "r" (saved_i7)); |
04369ff2 | 787 | #endif |
1057eaa7 PB |
788 | #include "hostregs_helper.h" |
789 | ||
6a00d601 FB |
790 | /* fail safe : never use cpu_single_env outside cpu_exec() */ |
791 | cpu_single_env = NULL; | |
7d13299d FB |
792 | return ret; |
793 | } | |
6dbad63e | 794 | |
fbf9eeb3 FB |
795 | /* must only be called from the generated code as an exception can be |
796 | generated */ | |
797 | void tb_invalidate_page_range(target_ulong start, target_ulong end) | |
798 | { | |
dc5d0b3d FB |
799 | /* XXX: cannot enable it yet because it yields to MMU exception |
800 | where NIP != read address on PowerPC */ | |
801 | #if 0 | |
fbf9eeb3 FB |
802 | target_ulong phys_addr; |
803 | phys_addr = get_phys_addr_code(env, start); | |
804 | tb_invalidate_phys_page_range(phys_addr, phys_addr + end - start, 0); | |
dc5d0b3d | 805 | #endif |
fbf9eeb3 FB |
806 | } |
807 | ||
1a18c71b | 808 | #if defined(TARGET_I386) && defined(CONFIG_USER_ONLY) |
e4533c7a | 809 | |
6dbad63e FB |
810 | void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector) |
811 | { | |
812 | CPUX86State *saved_env; | |
813 | ||
814 | saved_env = env; | |
815 | env = s; | |
a412ac57 | 816 | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) { |
a513fe19 | 817 | selector &= 0xffff; |
2e255c6b | 818 | cpu_x86_load_seg_cache(env, seg_reg, selector, |
c27004ec | 819 | (selector << 4), 0xffff, 0); |
a513fe19 | 820 | } else { |
b453b70b | 821 | load_seg(seg_reg, selector); |
a513fe19 | 822 | } |
6dbad63e FB |
823 | env = saved_env; |
824 | } | |
9de5e440 | 825 | |
d0a1ffc9 FB |
826 | void cpu_x86_fsave(CPUX86State *s, uint8_t *ptr, int data32) |
827 | { | |
828 | CPUX86State *saved_env; | |
829 | ||
830 | saved_env = env; | |
831 | env = s; | |
832 | ||
c27004ec | 833 | helper_fsave((target_ulong)ptr, data32); |
d0a1ffc9 FB |
834 | |
835 | env = saved_env; | |
836 | } | |
837 | ||
838 | void cpu_x86_frstor(CPUX86State *s, uint8_t *ptr, int data32) | |
839 | { | |
840 | CPUX86State *saved_env; | |
841 | ||
842 | saved_env = env; | |
843 | env = s; | |
844 | ||
c27004ec | 845 | helper_frstor((target_ulong)ptr, data32); |
d0a1ffc9 FB |
846 | |
847 | env = saved_env; | |
848 | } | |
849 | ||
e4533c7a FB |
850 | #endif /* TARGET_I386 */ |
851 | ||
67b915a5 FB |
852 | #if !defined(CONFIG_SOFTMMU) |
853 | ||
3fb2ded1 FB |
854 | #if defined(TARGET_I386) |
855 | ||
b56dad1c | 856 | /* 'pc' is the host PC at which the exception was raised. 'address' is |
fd6ce8f6 FB |
857 | the effective address of the memory exception. 'is_write' is 1 if a |
858 | write caused the exception and otherwise 0'. 'old_set' is the | |
859 | signal set which should be restored */ | |
2b413144 | 860 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, |
bf3e8bf1 FB |
861 | int is_write, sigset_t *old_set, |
862 | void *puc) | |
9de5e440 | 863 | { |
a513fe19 FB |
864 | TranslationBlock *tb; |
865 | int ret; | |
68a79315 | 866 | |
83479e77 FB |
867 | if (cpu_single_env) |
868 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
fd6ce8f6 | 869 | #if defined(DEBUG_SIGNAL) |
bf3e8bf1 FB |
870 | qemu_printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", |
871 | pc, address, is_write, *(unsigned long *)old_set); | |
9de5e440 | 872 | #endif |
25eb4484 | 873 | /* XXX: locking issue */ |
53a5960a | 874 | if (is_write && page_unprotect(h2g(address), pc, puc)) { |
fd6ce8f6 FB |
875 | return 1; |
876 | } | |
fbf9eeb3 | 877 | |
3fb2ded1 | 878 | /* see if it is an MMU fault */ |
93a40ea9 FB |
879 | ret = cpu_x86_handle_mmu_fault(env, address, is_write, |
880 | ((env->hflags & HF_CPL_MASK) == 3), 0); | |
3fb2ded1 FB |
881 | if (ret < 0) |
882 | return 0; /* not an MMU fault */ | |
883 | if (ret == 0) | |
884 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
885 | /* now we have a real cpu fault */ | |
a513fe19 FB |
886 | tb = tb_find_pc(pc); |
887 | if (tb) { | |
9de5e440 FB |
888 | /* the PC is inside the translated code. It means that we have |
889 | a virtual CPU fault */ | |
bf3e8bf1 | 890 | cpu_restore_state(tb, env, pc, puc); |
3fb2ded1 | 891 | } |
4cbf74b6 | 892 | if (ret == 1) { |
3fb2ded1 | 893 | #if 0 |
4cbf74b6 FB |
894 | printf("PF exception: EIP=0x%08x CR2=0x%08x error=0x%x\n", |
895 | env->eip, env->cr[2], env->error_code); | |
3fb2ded1 | 896 | #endif |
4cbf74b6 FB |
897 | /* we restore the process signal mask as the sigreturn should |
898 | do it (XXX: use sigsetjmp) */ | |
899 | sigprocmask(SIG_SETMASK, old_set, NULL); | |
54ca9095 | 900 | raise_exception_err(env->exception_index, env->error_code); |
4cbf74b6 FB |
901 | } else { |
902 | /* activate soft MMU for this block */ | |
3f337316 | 903 | env->hflags |= HF_SOFTMMU_MASK; |
fbf9eeb3 | 904 | cpu_resume_from_signal(env, puc); |
4cbf74b6 | 905 | } |
3fb2ded1 FB |
906 | /* never comes here */ |
907 | return 1; | |
908 | } | |
909 | ||
e4533c7a | 910 | #elif defined(TARGET_ARM) |
3fb2ded1 | 911 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, |
bf3e8bf1 FB |
912 | int is_write, sigset_t *old_set, |
913 | void *puc) | |
3fb2ded1 | 914 | { |
68016c62 FB |
915 | TranslationBlock *tb; |
916 | int ret; | |
917 | ||
918 | if (cpu_single_env) | |
919 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
920 | #if defined(DEBUG_SIGNAL) | |
921 | printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", | |
922 | pc, address, is_write, *(unsigned long *)old_set); | |
923 | #endif | |
9f0777ed | 924 | /* XXX: locking issue */ |
53a5960a | 925 | if (is_write && page_unprotect(h2g(address), pc, puc)) { |
9f0777ed FB |
926 | return 1; |
927 | } | |
68016c62 FB |
928 | /* see if it is an MMU fault */ |
929 | ret = cpu_arm_handle_mmu_fault(env, address, is_write, 1, 0); | |
930 | if (ret < 0) | |
931 | return 0; /* not an MMU fault */ | |
932 | if (ret == 0) | |
933 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
934 | /* now we have a real cpu fault */ | |
935 | tb = tb_find_pc(pc); | |
936 | if (tb) { | |
937 | /* the PC is inside the translated code. It means that we have | |
938 | a virtual CPU fault */ | |
939 | cpu_restore_state(tb, env, pc, puc); | |
940 | } | |
941 | /* we restore the process signal mask as the sigreturn should | |
942 | do it (XXX: use sigsetjmp) */ | |
943 | sigprocmask(SIG_SETMASK, old_set, NULL); | |
944 | cpu_loop_exit(); | |
3fb2ded1 | 945 | } |
93ac68bc FB |
946 | #elif defined(TARGET_SPARC) |
947 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, | |
bf3e8bf1 FB |
948 | int is_write, sigset_t *old_set, |
949 | void *puc) | |
93ac68bc | 950 | { |
68016c62 FB |
951 | TranslationBlock *tb; |
952 | int ret; | |
953 | ||
954 | if (cpu_single_env) | |
955 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
956 | #if defined(DEBUG_SIGNAL) | |
957 | printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", | |
958 | pc, address, is_write, *(unsigned long *)old_set); | |
959 | #endif | |
b453b70b | 960 | /* XXX: locking issue */ |
53a5960a | 961 | if (is_write && page_unprotect(h2g(address), pc, puc)) { |
b453b70b FB |
962 | return 1; |
963 | } | |
68016c62 FB |
964 | /* see if it is an MMU fault */ |
965 | ret = cpu_sparc_handle_mmu_fault(env, address, is_write, 1, 0); | |
966 | if (ret < 0) | |
967 | return 0; /* not an MMU fault */ | |
968 | if (ret == 0) | |
969 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
970 | /* now we have a real cpu fault */ | |
971 | tb = tb_find_pc(pc); | |
972 | if (tb) { | |
973 | /* the PC is inside the translated code. It means that we have | |
974 | a virtual CPU fault */ | |
975 | cpu_restore_state(tb, env, pc, puc); | |
976 | } | |
977 | /* we restore the process signal mask as the sigreturn should | |
978 | do it (XXX: use sigsetjmp) */ | |
979 | sigprocmask(SIG_SETMASK, old_set, NULL); | |
980 | cpu_loop_exit(); | |
93ac68bc | 981 | } |
67867308 FB |
982 | #elif defined (TARGET_PPC) |
983 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, | |
bf3e8bf1 FB |
984 | int is_write, sigset_t *old_set, |
985 | void *puc) | |
67867308 FB |
986 | { |
987 | TranslationBlock *tb; | |
ce09776b | 988 | int ret; |
67867308 | 989 | |
67867308 FB |
990 | if (cpu_single_env) |
991 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
67867308 FB |
992 | #if defined(DEBUG_SIGNAL) |
993 | printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", | |
994 | pc, address, is_write, *(unsigned long *)old_set); | |
995 | #endif | |
996 | /* XXX: locking issue */ | |
53a5960a | 997 | if (is_write && page_unprotect(h2g(address), pc, puc)) { |
67867308 FB |
998 | return 1; |
999 | } | |
1000 | ||
ce09776b | 1001 | /* see if it is an MMU fault */ |
7f957d28 | 1002 | ret = cpu_ppc_handle_mmu_fault(env, address, is_write, msr_pr, 0); |
ce09776b FB |
1003 | if (ret < 0) |
1004 | return 0; /* not an MMU fault */ | |
1005 | if (ret == 0) | |
1006 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
1007 | ||
67867308 FB |
1008 | /* now we have a real cpu fault */ |
1009 | tb = tb_find_pc(pc); | |
1010 | if (tb) { | |
1011 | /* the PC is inside the translated code. It means that we have | |
1012 | a virtual CPU fault */ | |
bf3e8bf1 | 1013 | cpu_restore_state(tb, env, pc, puc); |
67867308 | 1014 | } |
ce09776b | 1015 | if (ret == 1) { |
67867308 | 1016 | #if 0 |
ce09776b FB |
1017 | printf("PF exception: NIP=0x%08x error=0x%x %p\n", |
1018 | env->nip, env->error_code, tb); | |
67867308 FB |
1019 | #endif |
1020 | /* we restore the process signal mask as the sigreturn should | |
1021 | do it (XXX: use sigsetjmp) */ | |
bf3e8bf1 | 1022 | sigprocmask(SIG_SETMASK, old_set, NULL); |
9fddaa0c | 1023 | do_raise_exception_err(env->exception_index, env->error_code); |
ce09776b FB |
1024 | } else { |
1025 | /* activate soft MMU for this block */ | |
fbf9eeb3 | 1026 | cpu_resume_from_signal(env, puc); |
ce09776b | 1027 | } |
67867308 | 1028 | /* never comes here */ |
e6e5906b PB |
1029 | return 1; |
1030 | } | |
1031 | ||
1032 | #elif defined(TARGET_M68K) | |
1033 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, | |
1034 | int is_write, sigset_t *old_set, | |
1035 | void *puc) | |
1036 | { | |
1037 | TranslationBlock *tb; | |
1038 | int ret; | |
1039 | ||
1040 | if (cpu_single_env) | |
1041 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
1042 | #if defined(DEBUG_SIGNAL) | |
1043 | printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", | |
1044 | pc, address, is_write, *(unsigned long *)old_set); | |
1045 | #endif | |
1046 | /* XXX: locking issue */ | |
1047 | if (is_write && page_unprotect(address, pc, puc)) { | |
1048 | return 1; | |
1049 | } | |
1050 | /* see if it is an MMU fault */ | |
1051 | ret = cpu_m68k_handle_mmu_fault(env, address, is_write, 1, 0); | |
1052 | if (ret < 0) | |
1053 | return 0; /* not an MMU fault */ | |
1054 | if (ret == 0) | |
1055 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
1056 | /* now we have a real cpu fault */ | |
1057 | tb = tb_find_pc(pc); | |
1058 | if (tb) { | |
1059 | /* the PC is inside the translated code. It means that we have | |
1060 | a virtual CPU fault */ | |
1061 | cpu_restore_state(tb, env, pc, puc); | |
1062 | } | |
1063 | /* we restore the process signal mask as the sigreturn should | |
1064 | do it (XXX: use sigsetjmp) */ | |
1065 | sigprocmask(SIG_SETMASK, old_set, NULL); | |
1066 | cpu_loop_exit(); | |
1067 | /* never comes here */ | |
67867308 FB |
1068 | return 1; |
1069 | } | |
6af0bf9c FB |
1070 | |
1071 | #elif defined (TARGET_MIPS) | |
1072 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, | |
1073 | int is_write, sigset_t *old_set, | |
1074 | void *puc) | |
1075 | { | |
1076 | TranslationBlock *tb; | |
1077 | int ret; | |
1078 | ||
1079 | if (cpu_single_env) | |
1080 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
1081 | #if defined(DEBUG_SIGNAL) | |
1082 | printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", | |
1083 | pc, address, is_write, *(unsigned long *)old_set); | |
1084 | #endif | |
1085 | /* XXX: locking issue */ | |
53a5960a | 1086 | if (is_write && page_unprotect(h2g(address), pc, puc)) { |
6af0bf9c FB |
1087 | return 1; |
1088 | } | |
1089 | ||
1090 | /* see if it is an MMU fault */ | |
cc9442b9 | 1091 | ret = cpu_mips_handle_mmu_fault(env, address, is_write, 1, 0); |
6af0bf9c FB |
1092 | if (ret < 0) |
1093 | return 0; /* not an MMU fault */ | |
1094 | if (ret == 0) | |
1095 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
1096 | ||
1097 | /* now we have a real cpu fault */ | |
1098 | tb = tb_find_pc(pc); | |
1099 | if (tb) { | |
1100 | /* the PC is inside the translated code. It means that we have | |
1101 | a virtual CPU fault */ | |
1102 | cpu_restore_state(tb, env, pc, puc); | |
1103 | } | |
1104 | if (ret == 1) { | |
1105 | #if 0 | |
1106 | printf("PF exception: NIP=0x%08x error=0x%x %p\n", | |
1107 | env->nip, env->error_code, tb); | |
1108 | #endif | |
1109 | /* we restore the process signal mask as the sigreturn should | |
1110 | do it (XXX: use sigsetjmp) */ | |
1111 | sigprocmask(SIG_SETMASK, old_set, NULL); | |
1112 | do_raise_exception_err(env->exception_index, env->error_code); | |
1113 | } else { | |
1114 | /* activate soft MMU for this block */ | |
1115 | cpu_resume_from_signal(env, puc); | |
1116 | } | |
1117 | /* never comes here */ | |
1118 | return 1; | |
1119 | } | |
1120 | ||
fdf9b3e8 FB |
1121 | #elif defined (TARGET_SH4) |
1122 | static inline int handle_cpu_signal(unsigned long pc, unsigned long address, | |
1123 | int is_write, sigset_t *old_set, | |
1124 | void *puc) | |
1125 | { | |
1126 | TranslationBlock *tb; | |
1127 | int ret; | |
1128 | ||
1129 | if (cpu_single_env) | |
1130 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
1131 | #if defined(DEBUG_SIGNAL) | |
1132 | printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", | |
1133 | pc, address, is_write, *(unsigned long *)old_set); | |
1134 | #endif | |
1135 | /* XXX: locking issue */ | |
1136 | if (is_write && page_unprotect(h2g(address), pc, puc)) { | |
1137 | return 1; | |
1138 | } | |
1139 | ||
1140 | /* see if it is an MMU fault */ | |
1141 | ret = cpu_sh4_handle_mmu_fault(env, address, is_write, 1, 0); | |
1142 | if (ret < 0) | |
1143 | return 0; /* not an MMU fault */ | |
1144 | if (ret == 0) | |
1145 | return 1; /* the MMU fault was handled without causing real CPU fault */ | |
1146 | ||
1147 | /* now we have a real cpu fault */ | |
1148 | tb = tb_find_pc(pc); | |
1149 | if (tb) { | |
1150 | /* the PC is inside the translated code. It means that we have | |
1151 | a virtual CPU fault */ | |
1152 | cpu_restore_state(tb, env, pc, puc); | |
1153 | } | |
fdf9b3e8 FB |
1154 | #if 0 |
1155 | printf("PF exception: NIP=0x%08x error=0x%x %p\n", | |
1156 | env->nip, env->error_code, tb); | |
1157 | #endif | |
1158 | /* we restore the process signal mask as the sigreturn should | |
1159 | do it (XXX: use sigsetjmp) */ | |
355fb23d PB |
1160 | sigprocmask(SIG_SETMASK, old_set, NULL); |
1161 | cpu_loop_exit(); | |
fdf9b3e8 FB |
1162 | /* never comes here */ |
1163 | return 1; | |
1164 | } | |
e4533c7a FB |
1165 | #else |
1166 | #error unsupported target CPU | |
1167 | #endif | |
9de5e440 | 1168 | |
2b413144 FB |
1169 | #if defined(__i386__) |
1170 | ||
d8ecc0b9 FB |
1171 | #if defined(__APPLE__) |
1172 | # include <sys/ucontext.h> | |
1173 | ||
1174 | # define EIP_sig(context) (*((unsigned long*)&(context)->uc_mcontext->ss.eip)) | |
1175 | # define TRAP_sig(context) ((context)->uc_mcontext->es.trapno) | |
1176 | # define ERROR_sig(context) ((context)->uc_mcontext->es.err) | |
1177 | #else | |
1178 | # define EIP_sig(context) ((context)->uc_mcontext.gregs[REG_EIP]) | |
1179 | # define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO]) | |
1180 | # define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR]) | |
1181 | #endif | |
1182 | ||
bf3e8bf1 FB |
1183 | #if defined(USE_CODE_COPY) |
1184 | static void cpu_send_trap(unsigned long pc, int trap, | |
1185 | struct ucontext *uc) | |
1186 | { | |
1187 | TranslationBlock *tb; | |
1188 | ||
1189 | if (cpu_single_env) | |
1190 | env = cpu_single_env; /* XXX: find a correct solution for multithread */ | |
1191 | /* now we have a real cpu fault */ | |
1192 | tb = tb_find_pc(pc); | |
1193 | if (tb) { | |
1194 | /* the PC is inside the translated code. It means that we have | |
1195 | a virtual CPU fault */ | |
1196 | cpu_restore_state(tb, env, pc, uc); | |
1197 | } | |
1198 | sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL); | |
1199 | raise_exception_err(trap, env->error_code); | |
1200 | } | |
1201 | #endif | |
1202 | ||
5a7b542b | 1203 | int cpu_signal_handler(int host_signum, void *pinfo, |
e4533c7a | 1204 | void *puc) |
9de5e440 | 1205 | { |
5a7b542b | 1206 | siginfo_t *info = pinfo; |
9de5e440 FB |
1207 | struct ucontext *uc = puc; |
1208 | unsigned long pc; | |
bf3e8bf1 | 1209 | int trapno; |
97eb5b14 | 1210 | |
d691f669 FB |
1211 | #ifndef REG_EIP |
1212 | /* for glibc 2.1 */ | |
fd6ce8f6 FB |
1213 | #define REG_EIP EIP |
1214 | #define REG_ERR ERR | |
1215 | #define REG_TRAPNO TRAPNO | |
d691f669 | 1216 | #endif |
d8ecc0b9 FB |
1217 | pc = EIP_sig(uc); |
1218 | trapno = TRAP_sig(uc); | |
bf3e8bf1 FB |
1219 | #if defined(TARGET_I386) && defined(USE_CODE_COPY) |
1220 | if (trapno == 0x00 || trapno == 0x05) { | |
1221 | /* send division by zero or bound exception */ | |
1222 | cpu_send_trap(pc, trapno, uc); | |
1223 | return 1; | |
1224 | } else | |
1225 | #endif | |
1226 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
1227 | trapno == 0xe ? | |
d8ecc0b9 | 1228 | (ERROR_sig(uc) >> 1) & 1 : 0, |
bf3e8bf1 | 1229 | &uc->uc_sigmask, puc); |
2b413144 FB |
1230 | } |
1231 | ||
bc51c5c9 FB |
1232 | #elif defined(__x86_64__) |
1233 | ||
5a7b542b | 1234 | int cpu_signal_handler(int host_signum, void *pinfo, |
bc51c5c9 FB |
1235 | void *puc) |
1236 | { | |
5a7b542b | 1237 | siginfo_t *info = pinfo; |
bc51c5c9 FB |
1238 | struct ucontext *uc = puc; |
1239 | unsigned long pc; | |
1240 | ||
1241 | pc = uc->uc_mcontext.gregs[REG_RIP]; | |
1242 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
1243 | uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe ? | |
1244 | (uc->uc_mcontext.gregs[REG_ERR] >> 1) & 1 : 0, | |
1245 | &uc->uc_sigmask, puc); | |
1246 | } | |
1247 | ||
83fb7adf | 1248 | #elif defined(__powerpc__) |
2b413144 | 1249 | |
83fb7adf FB |
1250 | /*********************************************************************** |
1251 | * signal context platform-specific definitions | |
1252 | * From Wine | |
1253 | */ | |
1254 | #ifdef linux | |
1255 | /* All Registers access - only for local access */ | |
1256 | # define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name) | |
1257 | /* Gpr Registers access */ | |
1258 | # define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context) | |
1259 | # define IAR_sig(context) REG_sig(nip, context) /* Program counter */ | |
1260 | # define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */ | |
1261 | # define CTR_sig(context) REG_sig(ctr, context) /* Count register */ | |
1262 | # define XER_sig(context) REG_sig(xer, context) /* User's integer exception register */ | |
1263 | # define LR_sig(context) REG_sig(link, context) /* Link register */ | |
1264 | # define CR_sig(context) REG_sig(ccr, context) /* Condition register */ | |
1265 | /* Float Registers access */ | |
1266 | # define FLOAT_sig(reg_num, context) (((double*)((char*)((context)->uc_mcontext.regs+48*4)))[reg_num]) | |
1267 | # define FPSCR_sig(context) (*(int*)((char*)((context)->uc_mcontext.regs+(48+32*2)*4))) | |
1268 | /* Exception Registers access */ | |
1269 | # define DAR_sig(context) REG_sig(dar, context) | |
1270 | # define DSISR_sig(context) REG_sig(dsisr, context) | |
1271 | # define TRAP_sig(context) REG_sig(trap, context) | |
1272 | #endif /* linux */ | |
1273 | ||
1274 | #ifdef __APPLE__ | |
1275 | # include <sys/ucontext.h> | |
1276 | typedef struct ucontext SIGCONTEXT; | |
1277 | /* All Registers access - only for local access */ | |
1278 | # define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name) | |
1279 | # define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name) | |
1280 | # define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name) | |
1281 | # define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name) | |
1282 | /* Gpr Registers access */ | |
1283 | # define GPR_sig(reg_num, context) REG_sig(r##reg_num, context) | |
1284 | # define IAR_sig(context) REG_sig(srr0, context) /* Program counter */ | |
1285 | # define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */ | |
1286 | # define CTR_sig(context) REG_sig(ctr, context) | |
1287 | # define XER_sig(context) REG_sig(xer, context) /* Link register */ | |
1288 | # define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */ | |
1289 | # define CR_sig(context) REG_sig(cr, context) /* Condition register */ | |
1290 | /* Float Registers access */ | |
1291 | # define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context) | |
1292 | # define FPSCR_sig(context) ((double)FLOATREG_sig(fpscr, context)) | |
1293 | /* Exception Registers access */ | |
1294 | # define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */ | |
1295 | # define DSISR_sig(context) EXCEPREG_sig(dsisr, context) | |
1296 | # define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */ | |
1297 | #endif /* __APPLE__ */ | |
1298 | ||
5a7b542b | 1299 | int cpu_signal_handler(int host_signum, void *pinfo, |
e4533c7a | 1300 | void *puc) |
2b413144 | 1301 | { |
5a7b542b | 1302 | siginfo_t *info = pinfo; |
25eb4484 | 1303 | struct ucontext *uc = puc; |
25eb4484 | 1304 | unsigned long pc; |
25eb4484 FB |
1305 | int is_write; |
1306 | ||
83fb7adf | 1307 | pc = IAR_sig(uc); |
25eb4484 FB |
1308 | is_write = 0; |
1309 | #if 0 | |
1310 | /* ppc 4xx case */ | |
83fb7adf | 1311 | if (DSISR_sig(uc) & 0x00800000) |
25eb4484 FB |
1312 | is_write = 1; |
1313 | #else | |
83fb7adf | 1314 | if (TRAP_sig(uc) != 0x400 && (DSISR_sig(uc) & 0x02000000)) |
25eb4484 FB |
1315 | is_write = 1; |
1316 | #endif | |
1317 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
bf3e8bf1 | 1318 | is_write, &uc->uc_sigmask, puc); |
2b413144 FB |
1319 | } |
1320 | ||
2f87c607 FB |
1321 | #elif defined(__alpha__) |
1322 | ||
5a7b542b | 1323 | int cpu_signal_handler(int host_signum, void *pinfo, |
2f87c607 FB |
1324 | void *puc) |
1325 | { | |
5a7b542b | 1326 | siginfo_t *info = pinfo; |
2f87c607 FB |
1327 | struct ucontext *uc = puc; |
1328 | uint32_t *pc = uc->uc_mcontext.sc_pc; | |
1329 | uint32_t insn = *pc; | |
1330 | int is_write = 0; | |
1331 | ||
8c6939c0 | 1332 | /* XXX: need kernel patch to get write flag faster */ |
2f87c607 FB |
1333 | switch (insn >> 26) { |
1334 | case 0x0d: // stw | |
1335 | case 0x0e: // stb | |
1336 | case 0x0f: // stq_u | |
1337 | case 0x24: // stf | |
1338 | case 0x25: // stg | |
1339 | case 0x26: // sts | |
1340 | case 0x27: // stt | |
1341 | case 0x2c: // stl | |
1342 | case 0x2d: // stq | |
1343 | case 0x2e: // stl_c | |
1344 | case 0x2f: // stq_c | |
1345 | is_write = 1; | |
1346 | } | |
1347 | ||
1348 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
bf3e8bf1 | 1349 | is_write, &uc->uc_sigmask, puc); |
2f87c607 | 1350 | } |
8c6939c0 FB |
1351 | #elif defined(__sparc__) |
1352 | ||
5a7b542b | 1353 | int cpu_signal_handler(int host_signum, void *pinfo, |
e4533c7a | 1354 | void *puc) |
8c6939c0 | 1355 | { |
5a7b542b | 1356 | siginfo_t *info = pinfo; |
8c6939c0 FB |
1357 | uint32_t *regs = (uint32_t *)(info + 1); |
1358 | void *sigmask = (regs + 20); | |
1359 | unsigned long pc; | |
1360 | int is_write; | |
1361 | uint32_t insn; | |
1362 | ||
1363 | /* XXX: is there a standard glibc define ? */ | |
1364 | pc = regs[1]; | |
1365 | /* XXX: need kernel patch to get write flag faster */ | |
1366 | is_write = 0; | |
1367 | insn = *(uint32_t *)pc; | |
1368 | if ((insn >> 30) == 3) { | |
1369 | switch((insn >> 19) & 0x3f) { | |
1370 | case 0x05: // stb | |
1371 | case 0x06: // sth | |
1372 | case 0x04: // st | |
1373 | case 0x07: // std | |
1374 | case 0x24: // stf | |
1375 | case 0x27: // stdf | |
1376 | case 0x25: // stfsr | |
1377 | is_write = 1; | |
1378 | break; | |
1379 | } | |
1380 | } | |
1381 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
bf3e8bf1 | 1382 | is_write, sigmask, NULL); |
8c6939c0 FB |
1383 | } |
1384 | ||
1385 | #elif defined(__arm__) | |
1386 | ||
5a7b542b | 1387 | int cpu_signal_handler(int host_signum, void *pinfo, |
e4533c7a | 1388 | void *puc) |
8c6939c0 | 1389 | { |
5a7b542b | 1390 | siginfo_t *info = pinfo; |
8c6939c0 FB |
1391 | struct ucontext *uc = puc; |
1392 | unsigned long pc; | |
1393 | int is_write; | |
1394 | ||
1395 | pc = uc->uc_mcontext.gregs[R15]; | |
1396 | /* XXX: compute is_write */ | |
1397 | is_write = 0; | |
1398 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
1399 | is_write, | |
f3a9676a | 1400 | &uc->uc_sigmask, puc); |
8c6939c0 FB |
1401 | } |
1402 | ||
38e584a0 FB |
1403 | #elif defined(__mc68000) |
1404 | ||
5a7b542b | 1405 | int cpu_signal_handler(int host_signum, void *pinfo, |
38e584a0 FB |
1406 | void *puc) |
1407 | { | |
5a7b542b | 1408 | siginfo_t *info = pinfo; |
38e584a0 FB |
1409 | struct ucontext *uc = puc; |
1410 | unsigned long pc; | |
1411 | int is_write; | |
1412 | ||
1413 | pc = uc->uc_mcontext.gregs[16]; | |
1414 | /* XXX: compute is_write */ | |
1415 | is_write = 0; | |
1416 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
1417 | is_write, | |
bf3e8bf1 | 1418 | &uc->uc_sigmask, puc); |
38e584a0 FB |
1419 | } |
1420 | ||
b8076a74 FB |
1421 | #elif defined(__ia64) |
1422 | ||
1423 | #ifndef __ISR_VALID | |
1424 | /* This ought to be in <bits/siginfo.h>... */ | |
1425 | # define __ISR_VALID 1 | |
b8076a74 FB |
1426 | #endif |
1427 | ||
5a7b542b | 1428 | int cpu_signal_handler(int host_signum, void *pinfo, void *puc) |
b8076a74 | 1429 | { |
5a7b542b | 1430 | siginfo_t *info = pinfo; |
b8076a74 FB |
1431 | struct ucontext *uc = puc; |
1432 | unsigned long ip; | |
1433 | int is_write = 0; | |
1434 | ||
1435 | ip = uc->uc_mcontext.sc_ip; | |
1436 | switch (host_signum) { | |
1437 | case SIGILL: | |
1438 | case SIGFPE: | |
1439 | case SIGSEGV: | |
1440 | case SIGBUS: | |
1441 | case SIGTRAP: | |
fd4a43e4 | 1442 | if (info->si_code && (info->si_segvflags & __ISR_VALID)) |
b8076a74 FB |
1443 | /* ISR.W (write-access) is bit 33: */ |
1444 | is_write = (info->si_isr >> 33) & 1; | |
1445 | break; | |
1446 | ||
1447 | default: | |
1448 | break; | |
1449 | } | |
1450 | return handle_cpu_signal(ip, (unsigned long)info->si_addr, | |
1451 | is_write, | |
1452 | &uc->uc_sigmask, puc); | |
1453 | } | |
1454 | ||
90cb9493 FB |
1455 | #elif defined(__s390__) |
1456 | ||
5a7b542b | 1457 | int cpu_signal_handler(int host_signum, void *pinfo, |
90cb9493 FB |
1458 | void *puc) |
1459 | { | |
5a7b542b | 1460 | siginfo_t *info = pinfo; |
90cb9493 FB |
1461 | struct ucontext *uc = puc; |
1462 | unsigned long pc; | |
1463 | int is_write; | |
1464 | ||
1465 | pc = uc->uc_mcontext.psw.addr; | |
1466 | /* XXX: compute is_write */ | |
1467 | is_write = 0; | |
1468 | return handle_cpu_signal(pc, (unsigned long)info->si_addr, | |
1469 | is_write, | |
1470 | &uc->uc_sigmask, puc); | |
1471 | } | |
1472 | ||
9de5e440 | 1473 | #else |
2b413144 | 1474 | |
3fb2ded1 | 1475 | #error host CPU specific signal handler needed |
2b413144 | 1476 | |
9de5e440 | 1477 | #endif |
67b915a5 FB |
1478 | |
1479 | #endif /* !defined(CONFIG_SOFTMMU) */ |