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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs.
Revision 1.28 by gbeauche, 2004-05-14T08:25:30Z

# 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 + // Handle interrupts asynchronously?
76 + #define ASYNC_IRQ 0
77 + // Mac ROM is write protected when banked memory is used
78 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
79 + # define ROM_IS_WRITE_PROTECTED 0
80 + # define USE_SCRATCHMEM_SUBTERFUGE 1
81 + #else
82 + # define ROM_IS_WRITE_PROTECTED 1
83 + #endif
84 + // Configure PowerPC emulator
85 + #define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
86 + #define PPC_DECODE_CACHE 1
87 + #define PPC_FLIGHT_RECORDER 1
88 + #define PPC_PROFILE_COMPILE_TIME 0
89 + #define PPC_PROFILE_GENERIC_CALLS 0
90 + #define KPX_MAX_CPUS 1
91 + #if defined(__i386__)
92 + #define DYNGEN_ASM_OPTS 1
93 + #endif
94 + #else
95 + // Mac ROM is write protected
96 + #define ROM_IS_WRITE_PROTECTED 1
97 + #define USE_SCRATCHMEM_SUBTERFUGE 0
98 + #endif
99 +
100   // Data types
101   typedef unsigned char uint8;
102   typedef signed char int8;
# Line 92 | Line 121 | typedef long int32;
121   #if SIZEOF_LONG == 8
122   typedef unsigned long uint64;
123   typedef long int64;
124 + #define VAL64(a) (a ## l)
125 + #define UVAL64(a) (a ## ul)
126   #elif SIZEOF_LONG_LONG == 8
127   typedef unsigned long long uint64;
128   typedef long long int64;
129 + #define VAL64(a) (a ## LL)
130 + #define UVAL64(a) (a ## uLL)
131   #else
132   #error "No 8 byte type, you lose."
133   #endif
134 + #if SIZEOF_VOID_P == 4
135 + typedef uint32 uintptr;
136 + typedef int32 intptr;
137 + #elif SIZEOF_VOID_P == 8
138 + typedef uint64 uintptr;
139 + typedef int64 intptr;
140 + #else
141 + #error "Unsupported size of pointer"
142 + #endif
143 +
144 + /**
145 + *              Helper functions to byteswap data
146 + **/
147 +
148 + #if defined(__GNUC__)
149 + #if defined(__x86_64__) || defined(__i386__)
150 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
151 + #define opt_bswap_32 do_opt_bswap_32
152 + static inline uint32 do_opt_bswap_32(uint32 x)
153 + {
154 +  uint32 v;
155 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
156 +  return v;
157 + }
158 + #endif
159 + #endif
160 +
161 + #ifdef HAVE_BYTESWAP_H
162 + #include <byteswap.h>
163 + #endif
164 +
165 + #ifdef  opt_bswap_16
166 + #undef  bswap_16
167 + #define bswap_16 opt_bswap_16
168 + #endif
169 + #ifndef bswap_16
170 + #define bswap_16 generic_bswap_16
171 + #endif
172 +
173 + static inline uint16 generic_bswap_16(uint16 x)
174 + {
175 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
176 + }
177 +
178 + #ifdef  opt_bswap_32
179 + #undef  bswap_32
180 + #define bswap_32 opt_bswap_32
181 + #endif
182 + #ifndef bswap_32
183 + #define bswap_32 generic_bswap_32
184 + #endif
185 +
186 + static inline uint32 generic_bswap_32(uint32 x)
187 + {
188 +  return (((x & 0xff000000) >> 24) |
189 +                  ((x & 0x00ff0000) >>  8) |
190 +                  ((x & 0x0000ff00) <<  8) |
191 +                  ((x & 0x000000ff) << 24) );
192 + }
193 +
194 + #if defined(__i386__)
195 + #define opt_bswap_64 do_opt_bswap_64
196 + static inline uint64 do_opt_bswap_64(uint64 x)
197 + {
198 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
199 + }
200 + #endif
201 +
202 + #ifdef  opt_bswap_64
203 + #undef  bswap_64
204 + #define bswap_64 opt_bswap_64
205 + #endif
206 + #ifndef bswap_64
207 + #define bswap_64 generic_bswap_64
208 + #endif
209 +
210 + static inline uint64 generic_bswap_64(uint64 x)
211 + {
212 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
213 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
214 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
215 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
216 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
217 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
218 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
219 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
220 + }
221 +
222 + #ifdef WORDS_BIGENDIAN
223 + static inline uint16 tswap16(uint16 x) { return x; }
224 + static inline uint32 tswap32(uint32 x) { return x; }
225 + static inline uint64 tswap64(uint64 x) { return x; }
226 + #else
227 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
228 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
229 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
230 + #endif
231 +
232 + // spin locks
233 + #ifdef __GNUC__
234 +
235 + #if defined(__powerpc__) || defined(__ppc__)
236 + #define HAVE_TEST_AND_SET 1
237 + static inline int testandset(volatile int *p)
238 + {
239 +        int ret;
240 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
241 +                                                 "      xor.    %0,%3,%0\n"
242 +                                                 "      bne             1f\n"
243 +                                                 "      stwcx.  %2,0,%1\n"
244 +                                                 "      bne-    0b\n"
245 +                                                 "1:    "
246 +                                                 : "=&r" (ret)
247 +                                                 : "r" (p), "r" (1), "r" (0)
248 +                                                 : "cr0", "memory");
249 +        return ret;
250 + }
251 + #endif
252 +
253 + #ifdef __i386__
254 + #define HAVE_TEST_AND_SET 1
255 + static inline int testandset(volatile int *p)
256 + {
257 +        int ret;
258 +        long int readval;
259 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
260 +        __asm__ __volatile__("xchgl %0, %1"
261 +                                                 : "=r" (ret), "=m" (*p), "=a" (readval)
262 +                                                 : "0" (1), "m" (*p)
263 +                                                 : "memory");
264 +        return ret;
265 + }
266 + #endif
267 +
268 + #ifdef __s390__
269 + #define HAVE_TEST_AND_SET 1
270 + static inline int testandset(volatile int *p)
271 + {
272 +        int ret;
273 +
274 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
275 +                                                 "   jl    0b"
276 +                                                 : "=&d" (ret)
277 +                                                 : "r" (1), "a" (p), "0" (*p)
278 +                                                 : "cc", "memory" );
279 +        return ret;
280 + }
281 + #endif
282 +
283 + #ifdef __alpha__
284 + #define HAVE_TEST_AND_SET 1
285 + static inline int testandset(volatile int *p)
286 + {
287 +        int ret;
288 +        unsigned long one;
289 +
290 +        __asm__ __volatile__("0:        mov 1,%2\n"
291 +                                                 "      ldl_l %0,%1\n"
292 +                                                 "      stl_c %2,%1\n"
293 +                                                 "      beq %2,1f\n"
294 +                                                 ".subsection 2\n"
295 +                                                 "1:    br 0b\n"
296 +                                                 ".previous"
297 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
298 +                                                 : "m" (*p));
299 +        return ret;
300 + }
301 + #endif
302 +
303 + #ifdef __sparc__
304 + #define HAVE_TEST_AND_SET 1
305 + static inline int testandset(volatile int *p)
306 + {
307 +        int ret;
308 +
309 +        __asm__ __volatile__("ldstub    [%1], %0"
310 +                                                 : "=r" (ret)
311 +                                                 : "r" (p)
312 +                                                 : "memory");
313 +
314 +        return (ret ? 1 : 0);
315 + }
316 + #endif
317 +
318 + #ifdef __arm__
319 + #define HAVE_TEST_AND_SET 1
320 + static inline int testandset(volatile int *p)
321 + {
322 +        register unsigned int ret;
323 +        __asm__ __volatile__("swp %0, %1, [%2]"
324 +                                                 : "=r"(ret)
325 +                                                 : "0"(1), "r"(p));
326 +        
327 +        return ret;
328 + }
329 + #endif
330 +
331 + #endif /* __GNUC__ */
332 +
333 + #if HAVE_TEST_AND_SET
334 + #define HAVE_SPINLOCKS 1
335 + typedef volatile int spinlock_t;
336 +
337 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
338 +
339 + static inline void spin_lock(spinlock_t *lock)
340 + {
341 +        while (testandset(lock));
342 + }
343 +
344 + static inline void spin_unlock(spinlock_t *lock)
345 + {
346 +        *lock = 0;
347 + }
348 +
349 + static inline int spin_trylock(spinlock_t *lock)
350 + {
351 +        return !testandset(lock);
352 + }
353 + #endif
354  
355   // Time data type for Time Manager emulation
356   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 359 | typedef struct timespec tm_time_t;
359   typedef struct timeval tm_time_t;
360   #endif
361  
362 + // Timing functions
363 + extern uint64 GetTicks_usec(void);
364 + extern void Delay_usec(uint32 usec);
365 +
366 + #if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
367   // Setup pthread attributes
368   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
369 + #endif
370  
371   // Various definitions
372   typedef struct rgb_color {
# Line 117 | Line 376 | typedef struct rgb_color {
376          uint8           alpha;
377   } rgb_color;
378  
379 + // X11 display fast locks
380 + #ifdef HAVE_SPINLOCKS
381 + #define X11_LOCK_TYPE spinlock_t
382 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
383 + #define XDisplayLock() spin_lock(&x_display_lock)
384 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
385 + #elif defined(HAVE_PTHREADS)
386 + #define X11_LOCK_TYPE pthread_mutex_t
387 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
388 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
389 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
390 + #else
391 + #define XDisplayLock()
392 + #define XDisplayUnlock()
393 + #endif
394 + #ifdef X11_LOCK_TYPE
395 + extern X11_LOCK_TYPE x_display_lock;
396 + #endif
397 +
398   // Macro for calling MacOS routines
399   #define CallMacOS(type, tvect) call_macos((uint32)tvect)
400   #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
# Line 127 | Line 405 | typedef struct rgb_color {
405   #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)
406   #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)
407  
408 < extern "C" uint32 call_macos(uint32 tvect);
409 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
410 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
411 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
412 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
413 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
414 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
415 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
408 > #ifdef __cplusplus
409 > extern "C" {
410 > #endif
411 > extern uint32 call_macos(uint32 tvect);
412 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
413 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
414 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
415 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
416 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
417 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
418 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
419 > #ifdef __cplusplus
420 > }
421 > #endif
422  
423   #endif

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