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1 | /* | |
2 | * defines common to all virtual CPUs | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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 | |
19 | */ | |
20 | #ifndef CPU_ALL_H | |
21 | #define CPU_ALL_H | |
22 | ||
23 | /* all CPU memory access use these macros */ | |
24 | static inline int ldub(void *ptr) | |
25 | { | |
26 | return *(uint8_t *)ptr; | |
27 | } | |
28 | ||
29 | static inline int ldsb(void *ptr) | |
30 | { | |
31 | return *(int8_t *)ptr; | |
32 | } | |
33 | ||
34 | static inline void stb(void *ptr, int v) | |
35 | { | |
36 | *(uint8_t *)ptr = v; | |
37 | } | |
38 | ||
39 | /* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the | |
40 | kernel handles unaligned load/stores may give better results, but | |
41 | it is a system wide setting : bad */ | |
42 | #if defined(WORDS_BIGENDIAN) || defined(__arm__) | |
43 | ||
44 | /* conservative code for little endian unaligned accesses */ | |
45 | static inline int lduw(void *ptr) | |
46 | { | |
47 | #ifdef __powerpc__ | |
48 | int val; | |
49 | __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr)); | |
50 | return val; | |
51 | #else | |
52 | uint8_t *p = ptr; | |
53 | return p[0] | (p[1] << 8); | |
54 | #endif | |
55 | } | |
56 | ||
57 | static inline int ldsw(void *ptr) | |
58 | { | |
59 | #ifdef __powerpc__ | |
60 | int val; | |
61 | __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr)); | |
62 | return (int16_t)val; | |
63 | #else | |
64 | uint8_t *p = ptr; | |
65 | return (int16_t)(p[0] | (p[1] << 8)); | |
66 | #endif | |
67 | } | |
68 | ||
69 | static inline int ldl(void *ptr) | |
70 | { | |
71 | #ifdef __powerpc__ | |
72 | int val; | |
73 | __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr)); | |
74 | return val; | |
75 | #else | |
76 | uint8_t *p = ptr; | |
77 | return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); | |
78 | #endif | |
79 | } | |
80 | ||
81 | static inline uint64_t ldq(void *ptr) | |
82 | { | |
83 | uint8_t *p = ptr; | |
84 | uint32_t v1, v2; | |
85 | v1 = ldl(p); | |
86 | v2 = ldl(p + 4); | |
87 | return v1 | ((uint64_t)v2 << 32); | |
88 | } | |
89 | ||
90 | static inline void stw(void *ptr, int v) | |
91 | { | |
92 | #ifdef __powerpc__ | |
93 | __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr)); | |
94 | #else | |
95 | uint8_t *p = ptr; | |
96 | p[0] = v; | |
97 | p[1] = v >> 8; | |
98 | #endif | |
99 | } | |
100 | ||
101 | static inline void stl(void *ptr, int v) | |
102 | { | |
103 | #ifdef __powerpc__ | |
104 | __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr)); | |
105 | #else | |
106 | uint8_t *p = ptr; | |
107 | p[0] = v; | |
108 | p[1] = v >> 8; | |
109 | p[2] = v >> 16; | |
110 | p[3] = v >> 24; | |
111 | #endif | |
112 | } | |
113 | ||
114 | static inline void stq(void *ptr, uint64_t v) | |
115 | { | |
116 | uint8_t *p = ptr; | |
117 | stl(p, (uint32_t)v); | |
118 | stl(p + 4, v >> 32); | |
119 | } | |
120 | ||
121 | /* float access */ | |
122 | ||
123 | static inline float ldfl(void *ptr) | |
124 | { | |
125 | union { | |
126 | float f; | |
127 | uint32_t i; | |
128 | } u; | |
129 | u.i = ldl(ptr); | |
130 | return u.f; | |
131 | } | |
132 | ||
133 | static inline void stfl(void *ptr, float v) | |
134 | { | |
135 | union { | |
136 | float f; | |
137 | uint32_t i; | |
138 | } u; | |
139 | u.f = v; | |
140 | stl(ptr, u.i); | |
141 | } | |
142 | ||
143 | ||
144 | #if defined(__arm__) && !defined(WORDS_BIGENDIAN) | |
145 | ||
146 | /* NOTE: arm is horrible as double 32 bit words are stored in big endian ! */ | |
147 | static inline double ldfq(void *ptr) | |
148 | { | |
149 | union { | |
150 | double d; | |
151 | uint32_t tab[2]; | |
152 | } u; | |
153 | u.tab[1] = ldl(ptr); | |
154 | u.tab[0] = ldl(ptr + 4); | |
155 | return u.d; | |
156 | } | |
157 | ||
158 | static inline void stfq(void *ptr, double v) | |
159 | { | |
160 | union { | |
161 | double d; | |
162 | uint32_t tab[2]; | |
163 | } u; | |
164 | u.d = v; | |
165 | stl(ptr, u.tab[1]); | |
166 | stl(ptr + 4, u.tab[0]); | |
167 | } | |
168 | ||
169 | #else | |
170 | static inline double ldfq(void *ptr) | |
171 | { | |
172 | union { | |
173 | double d; | |
174 | uint64_t i; | |
175 | } u; | |
176 | u.i = ldq(ptr); | |
177 | return u.d; | |
178 | } | |
179 | ||
180 | static inline void stfq(void *ptr, double v) | |
181 | { | |
182 | union { | |
183 | double d; | |
184 | uint64_t i; | |
185 | } u; | |
186 | u.d = v; | |
187 | stq(ptr, u.i); | |
188 | } | |
189 | #endif | |
190 | ||
191 | #elif defined(TARGET_WORDS_BIGENDIAN) && !defined(WORDS_BIGENDIAN) | |
192 | ||
193 | static inline int lduw(void *ptr) | |
194 | { | |
195 | uint8_t *b = (uint8_t *) ptr; | |
196 | return (b[0]<<8|b[1]); | |
197 | } | |
198 | ||
199 | static inline int ldsw(void *ptr) | |
200 | { | |
201 | int8_t *b = (int8_t *) ptr; | |
202 | return (b[0]<<8|b[1]); | |
203 | } | |
204 | ||
205 | static inline int ldl(void *ptr) | |
206 | { | |
207 | uint8_t *b = (uint8_t *) ptr; | |
208 | return (b[0]<<24|b[1]<<16|b[2]<<8|b[3]); | |
209 | } | |
210 | ||
211 | static inline uint64_t ldq(void *ptr) | |
212 | { | |
213 | uint32_t a,b; | |
214 | a = ldl (ptr); | |
215 | b = ldl (ptr+4); | |
216 | return (((uint64_t)a<<32)|b); | |
217 | } | |
218 | ||
219 | static inline void stw(void *ptr, int v) | |
220 | { | |
221 | uint8_t *d = (uint8_t *) ptr; | |
222 | d[0] = v >> 8; | |
223 | d[1] = v; | |
224 | } | |
225 | ||
226 | static inline void stl(void *ptr, int v) | |
227 | { | |
228 | uint8_t *d = (uint8_t *) ptr; | |
229 | d[0] = v >> 24; | |
230 | d[1] = v >> 16; | |
231 | d[2] = v >> 8; | |
232 | d[3] = v; | |
233 | } | |
234 | ||
235 | static inline void stq(void *ptr, uint64_t v) | |
236 | { | |
237 | stl (ptr, v); | |
238 | stl (ptr+4, v >> 32); | |
239 | } | |
240 | ||
241 | #else | |
242 | ||
243 | static inline int lduw(void *ptr) | |
244 | { | |
245 | return *(uint16_t *)ptr; | |
246 | } | |
247 | ||
248 | static inline int ldsw(void *ptr) | |
249 | { | |
250 | return *(int16_t *)ptr; | |
251 | } | |
252 | ||
253 | static inline int ldl(void *ptr) | |
254 | { | |
255 | return *(uint32_t *)ptr; | |
256 | } | |
257 | ||
258 | static inline uint64_t ldq(void *ptr) | |
259 | { | |
260 | return *(uint64_t *)ptr; | |
261 | } | |
262 | ||
263 | static inline void stw(void *ptr, int v) | |
264 | { | |
265 | *(uint16_t *)ptr = v; | |
266 | } | |
267 | ||
268 | static inline void stl(void *ptr, int v) | |
269 | { | |
270 | *(uint32_t *)ptr = v; | |
271 | } | |
272 | ||
273 | static inline void stq(void *ptr, uint64_t v) | |
274 | { | |
275 | *(uint64_t *)ptr = v; | |
276 | } | |
277 | ||
278 | /* float access */ | |
279 | ||
280 | static inline float ldfl(void *ptr) | |
281 | { | |
282 | return *(float *)ptr; | |
283 | } | |
284 | ||
285 | static inline double ldfq(void *ptr) | |
286 | { | |
287 | return *(double *)ptr; | |
288 | } | |
289 | ||
290 | static inline void stfl(void *ptr, float v) | |
291 | { | |
292 | *(float *)ptr = v; | |
293 | } | |
294 | ||
295 | static inline void stfq(void *ptr, double v) | |
296 | { | |
297 | *(double *)ptr = v; | |
298 | } | |
299 | #endif | |
300 | ||
301 | /* page related stuff */ | |
302 | ||
303 | #define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS) | |
304 | #define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1) | |
305 | #define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK) | |
306 | ||
307 | extern unsigned long real_host_page_size; | |
308 | extern unsigned long host_page_bits; | |
309 | extern unsigned long host_page_size; | |
310 | extern unsigned long host_page_mask; | |
311 | ||
312 | #define HOST_PAGE_ALIGN(addr) (((addr) + host_page_size - 1) & host_page_mask) | |
313 | ||
314 | /* same as PROT_xxx */ | |
315 | #define PAGE_READ 0x0001 | |
316 | #define PAGE_WRITE 0x0002 | |
317 | #define PAGE_EXEC 0x0004 | |
318 | #define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC) | |
319 | #define PAGE_VALID 0x0008 | |
320 | /* original state of the write flag (used when tracking self-modifying | |
321 | code */ | |
322 | #define PAGE_WRITE_ORG 0x0010 | |
323 | ||
324 | void page_dump(FILE *f); | |
325 | int page_get_flags(unsigned long address); | |
326 | void page_set_flags(unsigned long start, unsigned long end, int flags); | |
327 | void page_unprotect_range(uint8_t *data, unsigned long data_size); | |
328 | ||
329 | #define SINGLE_CPU_DEFINES | |
330 | #ifdef SINGLE_CPU_DEFINES | |
331 | ||
332 | #if defined(TARGET_I386) | |
333 | ||
334 | #define CPUState CPUX86State | |
335 | #define cpu_init cpu_x86_init | |
336 | #define cpu_exec cpu_x86_exec | |
337 | #define cpu_gen_code cpu_x86_gen_code | |
338 | #define cpu_interrupt cpu_x86_interrupt | |
339 | #define cpu_signal_handler cpu_x86_signal_handler | |
340 | ||
341 | #elif defined(TARGET_ARM) | |
342 | ||
343 | #define CPUState CPUARMState | |
344 | #define cpu_init cpu_arm_init | |
345 | #define cpu_exec cpu_arm_exec | |
346 | #define cpu_gen_code cpu_arm_gen_code | |
347 | #define cpu_interrupt cpu_arm_interrupt | |
348 | #define cpu_signal_handler cpu_arm_signal_handler | |
349 | ||
350 | #elif defined(TARGET_SPARC) | |
351 | ||
352 | #define CPUState CPUSPARCState | |
353 | #define cpu_init cpu_sparc_init | |
354 | #define cpu_exec cpu_sparc_exec | |
355 | #define cpu_gen_code cpu_sparc_gen_code | |
356 | #define cpu_interrupt cpu_sparc_interrupt | |
357 | #define cpu_signal_handler cpu_sparc_signal_handler | |
358 | ||
359 | #else | |
360 | ||
361 | #error unsupported target CPU | |
362 | ||
363 | #endif | |
364 | ||
365 | #endif /* SINGLE_CPU_DEFINES */ | |
366 | ||
367 | #define DEFAULT_GDBSTUB_PORT 1234 | |
368 | ||
369 | void cpu_abort(CPUState *env, const char *fmt, ...); | |
370 | extern CPUState *cpu_single_env; | |
371 | ||
372 | #define CPU_INTERRUPT_EXIT 0x01 /* wants exit from main loop */ | |
373 | #define CPU_INTERRUPT_HARD 0x02 /* hardware interrupt pending */ | |
374 | void cpu_interrupt(CPUState *s, int mask); | |
375 | ||
376 | int cpu_breakpoint_insert(CPUState *env, uint32_t pc); | |
377 | int cpu_breakpoint_remove(CPUState *env, uint32_t pc); | |
378 | void cpu_single_step(CPUState *env, int enabled); | |
379 | ||
380 | #define CPU_LOG_ALL 1 | |
381 | void cpu_set_log(int log_flags); | |
382 | void cpu_set_log_filename(const char *filename); | |
383 | ||
384 | /* memory API */ | |
385 | ||
386 | typedef void CPUWriteMemoryFunc(uint32_t addr, uint32_t value); | |
387 | typedef uint32_t CPUReadMemoryFunc(uint32_t addr); | |
388 | ||
389 | void cpu_register_physical_memory(unsigned long start_addr, unsigned long size, | |
390 | long phys_offset); | |
391 | int cpu_register_io_memory(int io_index, | |
392 | CPUReadMemoryFunc **mem_read, | |
393 | CPUWriteMemoryFunc **mem_write); | |
394 | ||
395 | /* gdb stub API */ | |
396 | extern int gdbstub_fd; | |
397 | CPUState *cpu_gdbstub_get_env(void *opaque); | |
398 | int cpu_gdbstub(void *opaque, int (*main_loop)(void *opaque), int port); | |
399 | ||
400 | #endif /* CPU_ALL_H */ |