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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs.
Revision 1.48 by gbeauche, 2005-07-03T22:02:01Z

# 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) 1997-2005 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 41 | Line 41
41   #include <assert.h>
42   #include <stdio.h>
43   #include <stdlib.h>
44 + #include <stddef.h>
45   #include <string.h>
46   #include <signal.h>
47  
48 + #ifdef HAVE_PTHREADS
49 + # include <pthread.h>
50 + #endif
51 +
52   #ifdef HAVE_FCNTL_H
53   # include <fcntl.h>
54   #endif
# Line 59 | Line 64
64   # endif
65   #endif
66  
67 < // Are we using a PPC emulator or the real thing?
68 < #ifdef __powerpc__
69 < #define EMULATED_PPC 0
67 > // Fix offsetof() on FreeBSD and GCC >= 3.4
68 > #if defined(__FreeBSD__) && defined(__cplusplus)
69 > #undef offsetof
70 > /* The cast to "char &" below avoids problems with user-defined
71 >   "operator &", which can appear in a POD type.  */
72 > #define offsetof(TYPE, MEMBER)                          \
73 >  (__offsetof__ (reinterpret_cast <size_t>              \
74 >                 (&reinterpret_cast <char &>            \
75 >                  (static_cast<TYPE *> (0)->MEMBER))))
76 > #endif
77 >
78 > // Define for external components
79 > #define SHEEPSHAVER 1
80 >
81 > // Always use Real Addressing mode on native architectures
82 > // Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
83 > #if !defined(EMULATED_PPC)
84 > #define REAL_ADDRESSING 1
85 > #include "ppc_asm.tmpl"
86 > #elif defined(NATMEM_OFFSET)
87 > #define DIRECT_ADDRESSING 1
88   #else
89 < #define EMULATED_PPC 1
89 > #define REAL_ADDRESSING 1
90 > #endif
91 >
92 > // Always use the complete non-stubs Ethernet driver
93 > #if DIRECT_ADDRESSING
94 > #define USE_ETHER_FULL_DRIVER 1
95   #endif
96  
97   #define POWERPC_ROM 1
98  
99 + #if EMULATED_PPC
100 + // Mac ROM is write protected when banked memory is used
101 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
102 + # define ROM_IS_WRITE_PROTECTED 0
103 + # define USE_SCRATCHMEM_SUBTERFUGE 1
104 + #else
105 + # define ROM_IS_WRITE_PROTECTED 1
106 + #endif
107 + // Configure PowerPC emulator
108 + #define PPC_REENTRANT_JIT 1
109 + #define PPC_CHECK_INTERRUPTS 1
110 + #define PPC_DECODE_CACHE 1
111 + #define PPC_FLIGHT_RECORDER 1
112 + #define PPC_PROFILE_COMPILE_TIME 0
113 + #define PPC_PROFILE_GENERIC_CALLS 0
114 + #define KPX_MAX_CPUS 1
115 + #if ENABLE_DYNGEN
116 + // Don't bother with predecode cache when using JIT
117 + #define PPC_ENABLE_JIT 1
118 + #undef  PPC_DECODE_CACHE
119 + #endif
120 + #if defined(__i386__)
121 + #define DYNGEN_ASM_OPTS 1
122 + #endif
123 + #else
124 + // Mac ROM is write protected
125 + #define ROM_IS_WRITE_PROTECTED 1
126 + #define USE_SCRATCHMEM_SUBTERFUGE 0
127 + #endif
128 +
129   // Data types
130   typedef unsigned char uint8;
131   typedef signed char int8;
# Line 92 | Line 150 | typedef long int32;
150   #if SIZEOF_LONG == 8
151   typedef unsigned long uint64;
152   typedef long int64;
153 + #define VAL64(a) (a ## l)
154 + #define UVAL64(a) (a ## ul)
155   #elif SIZEOF_LONG_LONG == 8
156   typedef unsigned long long uint64;
157   typedef long long int64;
158 + #define VAL64(a) (a ## LL)
159 + #define UVAL64(a) (a ## uLL)
160   #else
161   #error "No 8 byte type, you lose."
162   #endif
163 + #if SIZEOF_VOID_P == 4
164 + typedef uint32 uintptr;
165 + typedef int32 intptr;
166 + #elif SIZEOF_VOID_P == 8
167 + typedef uint64 uintptr;
168 + typedef int64 intptr;
169 + #else
170 + #error "Unsupported size of pointer"
171 + #endif
172 +
173 + /**
174 + *              Helper functions to byteswap data
175 + **/
176 +
177 + #if defined(__GNUC__)
178 + #if defined(__x86_64__) || defined(__i386__)
179 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
180 + #define opt_bswap_32 do_opt_bswap_32
181 + static inline uint32 do_opt_bswap_32(uint32 x)
182 + {
183 +  uint32 v;
184 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
185 +  return v;
186 + }
187 + #endif
188 + #endif
189 +
190 + #ifdef HAVE_BYTESWAP_H
191 + #include <byteswap.h>
192 + #endif
193 +
194 + #ifdef  opt_bswap_16
195 + #undef  bswap_16
196 + #define bswap_16 opt_bswap_16
197 + #endif
198 + #ifndef bswap_16
199 + #define bswap_16 generic_bswap_16
200 + #endif
201 +
202 + static inline uint16 generic_bswap_16(uint16 x)
203 + {
204 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
205 + }
206 +
207 + #ifdef  opt_bswap_32
208 + #undef  bswap_32
209 + #define bswap_32 opt_bswap_32
210 + #endif
211 + #ifndef bswap_32
212 + #define bswap_32 generic_bswap_32
213 + #endif
214 +
215 + static inline uint32 generic_bswap_32(uint32 x)
216 + {
217 +  return (((x & 0xff000000) >> 24) |
218 +                  ((x & 0x00ff0000) >>  8) |
219 +                  ((x & 0x0000ff00) <<  8) |
220 +                  ((x & 0x000000ff) << 24) );
221 + }
222 +
223 + #if defined(__i386__)
224 + #define opt_bswap_64 do_opt_bswap_64
225 + static inline uint64 do_opt_bswap_64(uint64 x)
226 + {
227 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
228 + }
229 + #endif
230 +
231 + #ifdef  opt_bswap_64
232 + #undef  bswap_64
233 + #define bswap_64 opt_bswap_64
234 + #endif
235 + #ifndef bswap_64
236 + #define bswap_64 generic_bswap_64
237 + #endif
238 +
239 + static inline uint64 generic_bswap_64(uint64 x)
240 + {
241 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
242 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
243 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
244 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
245 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
246 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
247 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
248 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
249 + }
250 +
251 + #ifdef WORDS_BIGENDIAN
252 + static inline uint16 tswap16(uint16 x) { return x; }
253 + static inline uint32 tswap32(uint32 x) { return x; }
254 + static inline uint64 tswap64(uint64 x) { return x; }
255 + #else
256 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
257 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
258 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
259 + #endif
260 +
261 + // spin locks
262 + #ifdef __GNUC__
263 +
264 + #if defined(__powerpc__) || defined(__ppc__)
265 + #define HAVE_TEST_AND_SET 1
266 + static inline int testandset(volatile int *p)
267 + {
268 +        int ret;
269 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
270 +                                                 "      xor.    %0,%3,%0\n"
271 +                                                 "      bne             1f\n"
272 +                                                 "      stwcx.  %2,0,%1\n"
273 +                                                 "      bne-    0b\n"
274 +                                                 "1:    "
275 +                                                 : "=&r" (ret)
276 +                                                 : "r" (p), "r" (1), "r" (0)
277 +                                                 : "cr0", "memory");
278 +        return ret;
279 + }
280 + #endif
281 +
282 + #if defined(__i386__) || defined(__x86_64__)
283 + #define HAVE_TEST_AND_SET 1
284 + static inline int testandset(volatile int *p)
285 + {
286 +        long int ret;
287 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
288 +        __asm__ __volatile__("xchgl %k0, %1"
289 +                                                 : "=r" (ret), "=m" (*p)
290 +                                                 : "0" (1), "m" (*p)
291 +                                                 : "memory");
292 +        return ret;
293 + }
294 + #endif
295 +
296 + #ifdef __s390__
297 + #define HAVE_TEST_AND_SET 1
298 + static inline int testandset(volatile int *p)
299 + {
300 +        int ret;
301 +
302 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
303 +                                                 "   jl    0b"
304 +                                                 : "=&d" (ret)
305 +                                                 : "r" (1), "a" (p), "0" (*p)
306 +                                                 : "cc", "memory" );
307 +        return ret;
308 + }
309 + #endif
310 +
311 + #ifdef __alpha__
312 + #define HAVE_TEST_AND_SET 1
313 + static inline int testandset(volatile int *p)
314 + {
315 +        int ret;
316 +        unsigned long one;
317 +
318 +        __asm__ __volatile__("0:        mov 1,%2\n"
319 +                                                 "      ldl_l %0,%1\n"
320 +                                                 "      stl_c %2,%1\n"
321 +                                                 "      beq %2,1f\n"
322 +                                                 ".subsection 2\n"
323 +                                                 "1:    br 0b\n"
324 +                                                 ".previous"
325 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
326 +                                                 : "m" (*p));
327 +        return ret;
328 + }
329 + #endif
330 +
331 + #ifdef __sparc__
332 + #define HAVE_TEST_AND_SET 1
333 + static inline int testandset(volatile int *p)
334 + {
335 +        int ret;
336 +
337 +        __asm__ __volatile__("ldstub    [%1], %0"
338 +                                                 : "=r" (ret)
339 +                                                 : "r" (p)
340 +                                                 : "memory");
341 +
342 +        return (ret ? 1 : 0);
343 + }
344 + #endif
345 +
346 + #ifdef __arm__
347 + #define HAVE_TEST_AND_SET 1
348 + static inline int testandset(volatile int *p)
349 + {
350 +        register unsigned int ret;
351 +        __asm__ __volatile__("swp %0, %1, [%2]"
352 +                                                 : "=r"(ret)
353 +                                                 : "0"(1), "r"(p));
354 +        
355 +        return ret;
356 + }
357 + #endif
358 +
359 + #endif /* __GNUC__ */
360 +
361 + typedef volatile int spinlock_t;
362 +
363 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
364 +
365 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
366 + // There is nothing to lock if we are not in an multithreaded environment
367 + #define HAVE_SPINLOCKS 1
368 + static inline void spin_lock(spinlock_t *lock)
369 + {
370 +        while (testandset(lock));
371 + }
372 +
373 + static inline void spin_unlock(spinlock_t *lock)
374 + {
375 +        *lock = 0;
376 + }
377 +
378 + static inline int spin_trylock(spinlock_t *lock)
379 + {
380 +        return !testandset(lock);
381 + }
382 + #else
383 + static inline void spin_lock(spinlock_t *lock)
384 + {
385 + }
386 +
387 + static inline void spin_unlock(spinlock_t *lock)
388 + {
389 + }
390 +
391 + static inline int spin_trylock(spinlock_t *lock)
392 + {
393 +        return 1;
394 + }
395 + #endif
396  
397   // Time data type for Time Manager emulation
398   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 401 | typedef struct timespec tm_time_t;
401   typedef struct timeval tm_time_t;
402   #endif
403  
404 + /* Define codes for all the float formats that we know of.
405 + * Though we only handle IEEE format.  */
406 + #define UNKNOWN_FLOAT_FORMAT 0
407 + #define IEEE_FLOAT_FORMAT 1
408 + #define VAX_FLOAT_FORMAT 2
409 + #define IBM_FLOAT_FORMAT 3
410 + #define C4X_FLOAT_FORMAT 4
411 +
412 + // High-precision timing
413 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
414 + #define PRECISE_TIMING 1
415 + #define PRECISE_TIMING_POSIX 1
416 + #endif
417 +
418 + // Timing functions
419 + extern uint64 GetTicks_usec(void);
420 + extern void Delay_usec(uint32 usec);
421 +
422 + #ifdef HAVE_PTHREADS
423   // Setup pthread attributes
424   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
425 + #endif
426  
427   // Various definitions
428   typedef struct rgb_color {
# Line 117 | Line 432 | typedef struct rgb_color {
432          uint8           alpha;
433   } rgb_color;
434  
435 + // X11 display fast locks
436 + #if defined(HAVE_PTHREADS)
437 + #define X11_LOCK_TYPE pthread_mutex_t
438 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
439 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
440 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
441 + #elif defined(HAVE_SPINLOCKS)
442 + #define X11_LOCK_TYPE spinlock_t
443 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
444 + #define XDisplayLock() spin_lock(&x_display_lock)
445 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
446 + #else
447 + #define XDisplayLock()
448 + #define XDisplayUnlock()
449 + #endif
450 + #ifdef X11_LOCK_TYPE
451 + extern X11_LOCK_TYPE x_display_lock;
452 + #endif
453 +
454   // Macro for calling MacOS routines
455 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
456 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
457 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
458 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
459 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
460 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
461 < #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)
462 < #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)
463 <
464 < extern "C" uint32 call_macos(uint32 tvect);
465 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
466 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
467 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
468 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
469 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
470 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
471 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
455 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
456 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
457 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
458 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
459 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
460 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
461 > #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6)
462 > #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6, (uintptr)arg7)
463 >
464 > #ifdef __cplusplus
465 > extern "C" {
466 > #endif
467 > extern uint32 call_macos(uint32 tvect);
468 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
469 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
470 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
471 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
472 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
473 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
474 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
475 > #ifdef __cplusplus
476 > }
477 > #endif
478  
479   #endif

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