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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.3 by gbeauche, 2003-01-04T12:23:39Z vs.
Revision 1.46 by gbeauche, 2005-07-01T23:15:11Z

# 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(__CYGWIN__)
87 > #define DIRECT_ADDRESSING 1
88 > #define DIRECT_ADDRESSING_HACK 1
89 > /*
90 >  The following address translation functions were empirically
91 >  determined on a Windows XP system running Cygwin 1.5.12-1 so
92 >  that RAM size can be maximized (up to 960 MB) and avoiding
93 >  the use of a TLB. This also takes into account reduced address
94 >  space available when the Cygwin runtime is used.
95 > */
96 > #define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
97 >        ((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
98 > #define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
99 >        ((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
100 > #elif defined(NATMEM_OFFSET)
101 > #define DIRECT_ADDRESSING 1
102   #else
103 < #define EMULATED_PPC 1
103 > #define REAL_ADDRESSING 1
104   #endif
105  
106   #define POWERPC_ROM 1
107  
108 + #if EMULATED_PPC
109 + // Mac ROM is write protected when banked memory is used
110 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
111 + # define ROM_IS_WRITE_PROTECTED 0
112 + # define USE_SCRATCHMEM_SUBTERFUGE 1
113 + #else
114 + # define ROM_IS_WRITE_PROTECTED 1
115 + #endif
116 + // Configure PowerPC emulator
117 + #define PPC_REENTRANT_JIT 1
118 + #define PPC_CHECK_INTERRUPTS 1
119 + #define PPC_DECODE_CACHE 1
120 + #define PPC_FLIGHT_RECORDER 1
121 + #define PPC_PROFILE_COMPILE_TIME 0
122 + #define PPC_PROFILE_GENERIC_CALLS 0
123 + #define KPX_MAX_CPUS 1
124 + #if ENABLE_DYNGEN
125 + // Don't bother with predecode cache when using JIT
126 + #define PPC_ENABLE_JIT 1
127 + #undef  PPC_DECODE_CACHE
128 + #endif
129 + #if defined(__i386__)
130 + #define DYNGEN_ASM_OPTS 1
131 + #endif
132 + #else
133 + // Mac ROM is write protected
134 + #define ROM_IS_WRITE_PROTECTED 1
135 + #define USE_SCRATCHMEM_SUBTERFUGE 0
136 + #endif
137 +
138   // Data types
139   typedef unsigned char uint8;
140   typedef signed char int8;
# Line 112 | Line 179 | typedef int64 intptr;
179   #error "Unsupported size of pointer"
180   #endif
181  
182 + /**
183 + *              Helper functions to byteswap data
184 + **/
185 +
186 + #if defined(__GNUC__)
187 + #if defined(__x86_64__) || defined(__i386__)
188 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
189 + #define opt_bswap_32 do_opt_bswap_32
190 + static inline uint32 do_opt_bswap_32(uint32 x)
191 + {
192 +  uint32 v;
193 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
194 +  return v;
195 + }
196 + #endif
197 + #endif
198 +
199 + #ifdef HAVE_BYTESWAP_H
200 + #include <byteswap.h>
201 + #endif
202 +
203 + #ifdef  opt_bswap_16
204 + #undef  bswap_16
205 + #define bswap_16 opt_bswap_16
206 + #endif
207 + #ifndef bswap_16
208 + #define bswap_16 generic_bswap_16
209 + #endif
210 +
211 + static inline uint16 generic_bswap_16(uint16 x)
212 + {
213 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
214 + }
215 +
216 + #ifdef  opt_bswap_32
217 + #undef  bswap_32
218 + #define bswap_32 opt_bswap_32
219 + #endif
220 + #ifndef bswap_32
221 + #define bswap_32 generic_bswap_32
222 + #endif
223 +
224 + static inline uint32 generic_bswap_32(uint32 x)
225 + {
226 +  return (((x & 0xff000000) >> 24) |
227 +                  ((x & 0x00ff0000) >>  8) |
228 +                  ((x & 0x0000ff00) <<  8) |
229 +                  ((x & 0x000000ff) << 24) );
230 + }
231 +
232 + #if defined(__i386__)
233 + #define opt_bswap_64 do_opt_bswap_64
234 + static inline uint64 do_opt_bswap_64(uint64 x)
235 + {
236 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
237 + }
238 + #endif
239 +
240 + #ifdef  opt_bswap_64
241 + #undef  bswap_64
242 + #define bswap_64 opt_bswap_64
243 + #endif
244 + #ifndef bswap_64
245 + #define bswap_64 generic_bswap_64
246 + #endif
247 +
248 + static inline uint64 generic_bswap_64(uint64 x)
249 + {
250 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
251 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
252 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
253 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
254 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
255 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
256 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
257 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
258 + }
259 +
260 + #ifdef WORDS_BIGENDIAN
261 + static inline uint16 tswap16(uint16 x) { return x; }
262 + static inline uint32 tswap32(uint32 x) { return x; }
263 + static inline uint64 tswap64(uint64 x) { return x; }
264 + #else
265 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
266 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
267 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
268 + #endif
269 +
270 + // spin locks
271 + #ifdef __GNUC__
272 +
273 + #if defined(__powerpc__) || defined(__ppc__)
274 + #define HAVE_TEST_AND_SET 1
275 + static inline int testandset(volatile int *p)
276 + {
277 +        int ret;
278 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
279 +                                                 "      xor.    %0,%3,%0\n"
280 +                                                 "      bne             1f\n"
281 +                                                 "      stwcx.  %2,0,%1\n"
282 +                                                 "      bne-    0b\n"
283 +                                                 "1:    "
284 +                                                 : "=&r" (ret)
285 +                                                 : "r" (p), "r" (1), "r" (0)
286 +                                                 : "cr0", "memory");
287 +        return ret;
288 + }
289 + #endif
290 +
291 + #if defined(__i386__) || defined(__x86_64__)
292 + #define HAVE_TEST_AND_SET 1
293 + static inline int testandset(volatile int *p)
294 + {
295 +        long int ret;
296 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
297 +        __asm__ __volatile__("xchgl %k0, %1"
298 +                                                 : "=r" (ret), "=m" (*p)
299 +                                                 : "0" (1), "m" (*p)
300 +                                                 : "memory");
301 +        return ret;
302 + }
303 + #endif
304 +
305 + #ifdef __s390__
306 + #define HAVE_TEST_AND_SET 1
307 + static inline int testandset(volatile int *p)
308 + {
309 +        int ret;
310 +
311 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
312 +                                                 "   jl    0b"
313 +                                                 : "=&d" (ret)
314 +                                                 : "r" (1), "a" (p), "0" (*p)
315 +                                                 : "cc", "memory" );
316 +        return ret;
317 + }
318 + #endif
319 +
320 + #ifdef __alpha__
321 + #define HAVE_TEST_AND_SET 1
322 + static inline int testandset(volatile int *p)
323 + {
324 +        int ret;
325 +        unsigned long one;
326 +
327 +        __asm__ __volatile__("0:        mov 1,%2\n"
328 +                                                 "      ldl_l %0,%1\n"
329 +                                                 "      stl_c %2,%1\n"
330 +                                                 "      beq %2,1f\n"
331 +                                                 ".subsection 2\n"
332 +                                                 "1:    br 0b\n"
333 +                                                 ".previous"
334 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
335 +                                                 : "m" (*p));
336 +        return ret;
337 + }
338 + #endif
339 +
340 + #ifdef __sparc__
341 + #define HAVE_TEST_AND_SET 1
342 + static inline int testandset(volatile int *p)
343 + {
344 +        int ret;
345 +
346 +        __asm__ __volatile__("ldstub    [%1], %0"
347 +                                                 : "=r" (ret)
348 +                                                 : "r" (p)
349 +                                                 : "memory");
350 +
351 +        return (ret ? 1 : 0);
352 + }
353 + #endif
354 +
355 + #ifdef __arm__
356 + #define HAVE_TEST_AND_SET 1
357 + static inline int testandset(volatile int *p)
358 + {
359 +        register unsigned int ret;
360 +        __asm__ __volatile__("swp %0, %1, [%2]"
361 +                                                 : "=r"(ret)
362 +                                                 : "0"(1), "r"(p));
363 +        
364 +        return ret;
365 + }
366 + #endif
367 +
368 + #endif /* __GNUC__ */
369 +
370 + typedef volatile int spinlock_t;
371 +
372 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
373 +
374 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
375 + // There is nothing to lock if we are not in an multithreaded environment
376 + #define HAVE_SPINLOCKS 1
377 + static inline void spin_lock(spinlock_t *lock)
378 + {
379 +        while (testandset(lock));
380 + }
381 +
382 + static inline void spin_unlock(spinlock_t *lock)
383 + {
384 +        *lock = 0;
385 + }
386 +
387 + static inline int spin_trylock(spinlock_t *lock)
388 + {
389 +        return !testandset(lock);
390 + }
391 + #else
392 + static inline void spin_lock(spinlock_t *lock)
393 + {
394 + }
395 +
396 + static inline void spin_unlock(spinlock_t *lock)
397 + {
398 + }
399 +
400 + static inline int spin_trylock(spinlock_t *lock)
401 + {
402 +        return 1;
403 + }
404 + #endif
405 +
406   // Time data type for Time Manager emulation
407   #ifdef HAVE_CLOCK_GETTIME
408   typedef struct timespec tm_time_t;
# Line 119 | Line 410 | typedef struct timespec tm_time_t;
410   typedef struct timeval tm_time_t;
411   #endif
412  
413 + /* Define codes for all the float formats that we know of.
414 + * Though we only handle IEEE format.  */
415 + #define UNKNOWN_FLOAT_FORMAT 0
416 + #define IEEE_FLOAT_FORMAT 1
417 + #define VAX_FLOAT_FORMAT 2
418 + #define IBM_FLOAT_FORMAT 3
419 + #define C4X_FLOAT_FORMAT 4
420 +
421 + // High-precision timing
422 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
423 + #define PRECISE_TIMING 1
424 + #define PRECISE_TIMING_POSIX 1
425 + #endif
426 +
427 + // Timing functions
428 + extern uint64 GetTicks_usec(void);
429 + extern void Delay_usec(uint32 usec);
430 +
431 + #ifdef HAVE_PTHREADS
432   // Setup pthread attributes
433   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
434 + #endif
435  
436   // Various definitions
437   typedef struct rgb_color {
# Line 130 | Line 441 | typedef struct rgb_color {
441          uint8           alpha;
442   } rgb_color;
443  
444 + // X11 display fast locks
445 + #if defined(HAVE_PTHREADS)
446 + #define X11_LOCK_TYPE pthread_mutex_t
447 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
448 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
449 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
450 + #elif defined(HAVE_SPINLOCKS)
451 + #define X11_LOCK_TYPE spinlock_t
452 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
453 + #define XDisplayLock() spin_lock(&x_display_lock)
454 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
455 + #else
456 + #define XDisplayLock()
457 + #define XDisplayUnlock()
458 + #endif
459 + #ifdef X11_LOCK_TYPE
460 + extern X11_LOCK_TYPE x_display_lock;
461 + #endif
462 +
463   // Macro for calling MacOS routines
464 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
465 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
466 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
467 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
468 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
469 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
470 < #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)
471 < #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)
464 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
465 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
466 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
467 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
468 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
469 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
470 > #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)
471 > #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)
472  
473   #ifdef __cplusplus
474   extern "C" {

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