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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.32 by gbeauche, 2004-06-02T16:11:49Z

# Line 1 | Line 1
1   /*
2   *  sysdeps.h - System dependent definitions for Linux
3   *
4 < *  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4 > *  SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
5   *
6   *  This program is free software; you can redistribute it and/or modify
7   *  it under the terms of the GNU General Public License as published by
# Line 44 | Line 44
44   #include <string.h>
45   #include <signal.h>
46  
47 + #ifdef HAVE_PTHREADS
48 + # include <pthread.h>
49 + #endif
50 +
51   #ifdef HAVE_FCNTL_H
52   # include <fcntl.h>
53   #endif
# Line 59 | Line 63
63   # endif
64   #endif
65  
66 < // Are we using a PPC emulator or the real thing?
67 < #ifdef __powerpc__
68 < #define EMULATED_PPC 0
69 < #else
70 < #define EMULATED_PPC 1
67 < #endif
66 > // Define for external components
67 > #define SHEEPSHAVER 1
68 >
69 > // Mac and host address space are the same
70 > #define REAL_ADDRESSING 1
71  
72   #define POWERPC_ROM 1
73  
74 + #if EMULATED_PPC
75 + // Mac ROM is write protected when banked memory is used
76 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
77 + # define ROM_IS_WRITE_PROTECTED 0
78 + # define USE_SCRATCHMEM_SUBTERFUGE 1
79 + #else
80 + # define ROM_IS_WRITE_PROTECTED 1
81 + #endif
82 + // Configure PowerPC emulator
83 + #define PPC_REENTRANT_JIT 1
84 + #define PPC_CHECK_INTERRUPTS 1
85 + #define PPC_DECODE_CACHE 1
86 + #define PPC_FLIGHT_RECORDER 1
87 + #define PPC_PROFILE_COMPILE_TIME 0
88 + #define PPC_PROFILE_GENERIC_CALLS 0
89 + #define KPX_MAX_CPUS 1
90 + #if defined(__i386__)
91 + #define DYNGEN_ASM_OPTS 1
92 + #endif
93 + #else
94 + // Mac ROM is write protected
95 + #define ROM_IS_WRITE_PROTECTED 1
96 + #define USE_SCRATCHMEM_SUBTERFUGE 0
97 + #endif
98 +
99   // Data types
100   typedef unsigned char uint8;
101   typedef signed char int8;
# Line 92 | Line 120 | typedef long int32;
120   #if SIZEOF_LONG == 8
121   typedef unsigned long uint64;
122   typedef long int64;
123 + #define VAL64(a) (a ## l)
124 + #define UVAL64(a) (a ## ul)
125   #elif SIZEOF_LONG_LONG == 8
126   typedef unsigned long long uint64;
127   typedef long long int64;
128 + #define VAL64(a) (a ## LL)
129 + #define UVAL64(a) (a ## uLL)
130   #else
131   #error "No 8 byte type, you lose."
132   #endif
133 + #if SIZEOF_VOID_P == 4
134 + typedef uint32 uintptr;
135 + typedef int32 intptr;
136 + #elif SIZEOF_VOID_P == 8
137 + typedef uint64 uintptr;
138 + typedef int64 intptr;
139 + #else
140 + #error "Unsupported size of pointer"
141 + #endif
142 +
143 + /**
144 + *              Helper functions to byteswap data
145 + **/
146 +
147 + #if defined(__GNUC__)
148 + #if defined(__x86_64__) || defined(__i386__)
149 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
150 + #define opt_bswap_32 do_opt_bswap_32
151 + static inline uint32 do_opt_bswap_32(uint32 x)
152 + {
153 +  uint32 v;
154 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
155 +  return v;
156 + }
157 + #endif
158 + #endif
159 +
160 + #ifdef HAVE_BYTESWAP_H
161 + #include <byteswap.h>
162 + #endif
163 +
164 + #ifdef  opt_bswap_16
165 + #undef  bswap_16
166 + #define bswap_16 opt_bswap_16
167 + #endif
168 + #ifndef bswap_16
169 + #define bswap_16 generic_bswap_16
170 + #endif
171 +
172 + static inline uint16 generic_bswap_16(uint16 x)
173 + {
174 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
175 + }
176 +
177 + #ifdef  opt_bswap_32
178 + #undef  bswap_32
179 + #define bswap_32 opt_bswap_32
180 + #endif
181 + #ifndef bswap_32
182 + #define bswap_32 generic_bswap_32
183 + #endif
184 +
185 + static inline uint32 generic_bswap_32(uint32 x)
186 + {
187 +  return (((x & 0xff000000) >> 24) |
188 +                  ((x & 0x00ff0000) >>  8) |
189 +                  ((x & 0x0000ff00) <<  8) |
190 +                  ((x & 0x000000ff) << 24) );
191 + }
192 +
193 + #if defined(__i386__)
194 + #define opt_bswap_64 do_opt_bswap_64
195 + static inline uint64 do_opt_bswap_64(uint64 x)
196 + {
197 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
198 + }
199 + #endif
200 +
201 + #ifdef  opt_bswap_64
202 + #undef  bswap_64
203 + #define bswap_64 opt_bswap_64
204 + #endif
205 + #ifndef bswap_64
206 + #define bswap_64 generic_bswap_64
207 + #endif
208 +
209 + static inline uint64 generic_bswap_64(uint64 x)
210 + {
211 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
212 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
213 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
214 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
215 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
216 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
217 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
218 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
219 + }
220 +
221 + #ifdef WORDS_BIGENDIAN
222 + static inline uint16 tswap16(uint16 x) { return x; }
223 + static inline uint32 tswap32(uint32 x) { return x; }
224 + static inline uint64 tswap64(uint64 x) { return x; }
225 + #else
226 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
227 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
228 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
229 + #endif
230 +
231 + // spin locks
232 + #ifdef __GNUC__
233 +
234 + #if defined(__powerpc__) || defined(__ppc__)
235 + #define HAVE_TEST_AND_SET 1
236 + static inline int testandset(volatile int *p)
237 + {
238 +        int ret;
239 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
240 +                                                 "      xor.    %0,%3,%0\n"
241 +                                                 "      bne             1f\n"
242 +                                                 "      stwcx.  %2,0,%1\n"
243 +                                                 "      bne-    0b\n"
244 +                                                 "1:    "
245 +                                                 : "=&r" (ret)
246 +                                                 : "r" (p), "r" (1), "r" (0)
247 +                                                 : "cr0", "memory");
248 +        return ret;
249 + }
250 + #endif
251 +
252 + /* FIXME: SheepShaver occasionnally hangs with those locks */
253 + #if 0 && (defined(__i386__) || defined(__x86_64__))
254 + #define HAVE_TEST_AND_SET 1
255 + static inline int testandset(volatile int *p)
256 + {
257 +        long int ret;
258 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
259 +        __asm__ __volatile__("xchgl %k0, %1"
260 +                                                 : "=r" (ret), "=m" (*p)
261 +                                                 : "0" (1), "m" (*p)
262 +                                                 : "memory");
263 +        return ret;
264 + }
265 + #endif
266 +
267 + #ifdef __s390__
268 + #define HAVE_TEST_AND_SET 1
269 + static inline int testandset(volatile int *p)
270 + {
271 +        int ret;
272 +
273 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
274 +                                                 "   jl    0b"
275 +                                                 : "=&d" (ret)
276 +                                                 : "r" (1), "a" (p), "0" (*p)
277 +                                                 : "cc", "memory" );
278 +        return ret;
279 + }
280 + #endif
281 +
282 + #ifdef __alpha__
283 + #define HAVE_TEST_AND_SET 1
284 + static inline int testandset(volatile int *p)
285 + {
286 +        int ret;
287 +        unsigned long one;
288 +
289 +        __asm__ __volatile__("0:        mov 1,%2\n"
290 +                                                 "      ldl_l %0,%1\n"
291 +                                                 "      stl_c %2,%1\n"
292 +                                                 "      beq %2,1f\n"
293 +                                                 ".subsection 2\n"
294 +                                                 "1:    br 0b\n"
295 +                                                 ".previous"
296 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
297 +                                                 : "m" (*p));
298 +        return ret;
299 + }
300 + #endif
301 +
302 + #ifdef __sparc__
303 + #define HAVE_TEST_AND_SET 1
304 + static inline int testandset(volatile int *p)
305 + {
306 +        int ret;
307 +
308 +        __asm__ __volatile__("ldstub    [%1], %0"
309 +                                                 : "=r" (ret)
310 +                                                 : "r" (p)
311 +                                                 : "memory");
312 +
313 +        return (ret ? 1 : 0);
314 + }
315 + #endif
316 +
317 + #ifdef __arm__
318 + #define HAVE_TEST_AND_SET 1
319 + static inline int testandset(volatile int *p)
320 + {
321 +        register unsigned int ret;
322 +        __asm__ __volatile__("swp %0, %1, [%2]"
323 +                                                 : "=r"(ret)
324 +                                                 : "0"(1), "r"(p));
325 +        
326 +        return ret;
327 + }
328 + #endif
329 +
330 + #endif /* __GNUC__ */
331 +
332 + typedef volatile int spinlock_t;
333 +
334 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
335 +
336 + #if HAVE_TEST_AND_SET
337 + #define HAVE_SPINLOCKS 1
338 + static inline void spin_lock(spinlock_t *lock)
339 + {
340 +        while (testandset(lock));
341 + }
342 +
343 + static inline void spin_unlock(spinlock_t *lock)
344 + {
345 +        *lock = 0;
346 + }
347 +
348 + static inline int spin_trylock(spinlock_t *lock)
349 + {
350 +        return !testandset(lock);
351 + }
352 + #else
353 + static inline void spin_lock(spinlock_t *lock)
354 + {
355 + }
356 +
357 + static inline void spin_unlock(spinlock_t *lock)
358 + {
359 + }
360 +
361 + static inline int spin_trylock(spinlock_t *lock)
362 + {
363 +        return 1;
364 + }
365 + #endif
366  
367   // Time data type for Time Manager emulation
368   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 371 | typedef struct timespec tm_time_t;
371   typedef struct timeval tm_time_t;
372   #endif
373  
374 + // Timing functions
375 + extern uint64 GetTicks_usec(void);
376 + extern void Delay_usec(uint32 usec);
377 +
378 + #if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
379 + // Setup pthread attributes
380 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
381 + #endif
382 +
383   // Various definitions
384   typedef struct rgb_color {
385          uint8           red;
# Line 114 | Line 388 | typedef struct rgb_color {
388          uint8           alpha;
389   } rgb_color;
390  
391 + // X11 display fast locks
392 + #ifdef HAVE_SPINLOCKS
393 + #define X11_LOCK_TYPE spinlock_t
394 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
395 + #define XDisplayLock() spin_lock(&x_display_lock)
396 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
397 + #elif defined(HAVE_PTHREADS)
398 + #define X11_LOCK_TYPE pthread_mutex_t
399 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
400 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
401 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
402 + #else
403 + #define XDisplayLock()
404 + #define XDisplayUnlock()
405 + #endif
406 + #ifdef X11_LOCK_TYPE
407 + extern X11_LOCK_TYPE x_display_lock;
408 + #endif
409 +
410   // Macro for calling MacOS routines
411   #define CallMacOS(type, tvect) call_macos((uint32)tvect)
412   #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
# Line 124 | Line 417 | typedef struct rgb_color {
417   #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6)
418   #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6, (uint32)arg7)
419  
420 < extern "C" uint32 call_macos(uint32 tvect);
421 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
422 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
423 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
424 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
425 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
426 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
427 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
420 > #ifdef __cplusplus
421 > extern "C" {
422 > #endif
423 > extern uint32 call_macos(uint32 tvect);
424 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
425 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
426 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
427 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
428 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
429 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
430 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
431 > #ifdef __cplusplus
432 > }
433 > #endif
434  
435   #endif

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