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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.59 by asvitkine, 2009-08-17T20:44:30Z

# 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) 1997-2008 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 > #ifdef __MACH__
68 > #include <mach/mach_types.h>
69 > #endif
70 >
71 > // Fix offsetof() on FreeBSD and GCC >= 3.4
72 > #if defined(__FreeBSD__) && defined(__cplusplus)
73 > #undef offsetof
74 > /* The cast to "char &" below avoids problems with user-defined
75 >   "operator &", which can appear in a POD type.  */
76 > #define offsetof(TYPE, MEMBER)                          \
77 >  (__offsetof__ (reinterpret_cast <size_t>              \
78 >                 (&reinterpret_cast <char &>            \
79 >                  (static_cast<TYPE *> (0)->MEMBER))))
80 > #endif
81 >
82 > // Define for external components
83 > #define SHEEPSHAVER 1
84 >
85 > // Always use Real Addressing mode on native architectures
86 > // Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
87 > #if !defined(EMULATED_PPC)
88 > #define REAL_ADDRESSING 1
89 > #include "ppc_asm.tmpl"
90 > #elif defined(NATMEM_OFFSET)
91 > #define DIRECT_ADDRESSING 1
92   #else
93 < #define EMULATED_PPC 1
93 > #define REAL_ADDRESSING 1
94   #endif
95  
96 + // Always use the complete non-stubs Ethernet driver
97 + #define USE_ETHER_FULL_DRIVER 1
98 +
99   #define POWERPC_ROM 1
100  
101 + #if EMULATED_PPC
102 + // Mac ROM is write protected when banked memory is used
103 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
104 + # define ROM_IS_WRITE_PROTECTED 0
105 + # define USE_SCRATCHMEM_SUBTERFUGE 1
106 + #else
107 + # define ROM_IS_WRITE_PROTECTED 1
108 + #endif
109 + // Configure PowerPC emulator
110 + #define PPC_REENTRANT_JIT 1
111 + #define PPC_CHECK_INTERRUPTS 1
112 + #define PPC_DECODE_CACHE 1
113 + #define PPC_FLIGHT_RECORDER 1
114 + #define PPC_PROFILE_COMPILE_TIME 0
115 + #define PPC_PROFILE_GENERIC_CALLS 0
116 + #define PPC_PROFILE_REGS_USE 0
117 + #define KPX_MAX_CPUS 1
118 + #if ENABLE_DYNGEN
119 + #define PPC_ENABLE_JIT 1
120 + #endif
121 + #if defined(__i386__) || defined(__x86_64__)
122 + #define DYNGEN_ASM_OPTS 1
123 + #endif
124 + #else
125 + // Mac ROM is write protected
126 + #define ROM_IS_WRITE_PROTECTED 1
127 + #define USE_SCRATCHMEM_SUBTERFUGE 0
128 + #endif
129 +
130   // Data types
131   typedef unsigned char uint8;
132   typedef signed char int8;
# Line 92 | Line 151 | typedef long int32;
151   #if SIZEOF_LONG == 8
152   typedef unsigned long uint64;
153   typedef long int64;
154 + #define VAL64(a) (a ## l)
155 + #define UVAL64(a) (a ## ul)
156   #elif SIZEOF_LONG_LONG == 8
157   typedef unsigned long long uint64;
158   typedef long long int64;
159 + #define VAL64(a) (a ## LL)
160 + #define UVAL64(a) (a ## uLL)
161   #else
162   #error "No 8 byte type, you lose."
163   #endif
164 + #if SIZEOF_VOID_P == 4
165 + typedef uint32 uintptr;
166 + typedef int32 intptr;
167 + #elif SIZEOF_VOID_P == 8
168 + typedef uint64 uintptr;
169 + typedef int64 intptr;
170 + #else
171 + #error "Unsupported size of pointer"
172 + #endif
173 +
174 + // Define if the host processor supports fast unaligned load/stores
175 + #if defined __i386__ || defined __x86_64__
176 + #define UNALIGNED_PROFITABLE 1
177 + #endif
178 +
179 +
180 + /**
181 + *              Helper functions to byteswap data
182 + **/
183 +
184 + #if defined(__GNUC__)
185 + #if defined(__x86_64__) || defined(__i386__)
186 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
187 + #define opt_bswap_32 do_opt_bswap_32
188 + static inline uint32 do_opt_bswap_32(uint32 x)
189 + {
190 +  uint32 v;
191 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
192 +  return v;
193 + }
194 + #endif
195 + #endif
196 +
197 + #ifdef HAVE_BYTESWAP_H
198 + #include <byteswap.h>
199 + #endif
200 +
201 + #ifdef  opt_bswap_16
202 + #undef  bswap_16
203 + #define bswap_16 opt_bswap_16
204 + #endif
205 + #ifndef bswap_16
206 + #define bswap_16 generic_bswap_16
207 + #endif
208 +
209 + static inline uint16 generic_bswap_16(uint16 x)
210 + {
211 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
212 + }
213 +
214 + #ifdef  opt_bswap_32
215 + #undef  bswap_32
216 + #define bswap_32 opt_bswap_32
217 + #endif
218 + #ifndef bswap_32
219 + #define bswap_32 generic_bswap_32
220 + #endif
221 +
222 + static inline uint32 generic_bswap_32(uint32 x)
223 + {
224 +  return (((x & 0xff000000) >> 24) |
225 +                  ((x & 0x00ff0000) >>  8) |
226 +                  ((x & 0x0000ff00) <<  8) |
227 +                  ((x & 0x000000ff) << 24) );
228 + }
229 +
230 + #if defined(__i386__)
231 + #define opt_bswap_64 do_opt_bswap_64
232 + static inline uint64 do_opt_bswap_64(uint64 x)
233 + {
234 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
235 + }
236 + #endif
237 +
238 + #ifdef  opt_bswap_64
239 + #undef  bswap_64
240 + #define bswap_64 opt_bswap_64
241 + #endif
242 + #ifndef bswap_64
243 + #define bswap_64 generic_bswap_64
244 + #endif
245 +
246 + static inline uint64 generic_bswap_64(uint64 x)
247 + {
248 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
249 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
250 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
251 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
252 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
253 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
254 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
255 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
256 + }
257 +
258 + #ifdef WORDS_BIGENDIAN
259 + static inline uint16 tswap16(uint16 x) { return x; }
260 + static inline uint32 tswap32(uint32 x) { return x; }
261 + static inline uint64 tswap64(uint64 x) { return x; }
262 + #else
263 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
264 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
265 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
266 + #endif
267 +
268 + // spin locks
269 + #ifdef __GNUC__
270 +
271 + #if defined(__powerpc__) || defined(__ppc__)
272 + #define HAVE_TEST_AND_SET 1
273 + static inline int testandset(volatile int *p)
274 + {
275 +        int ret;
276 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
277 +                                                 "      xor.    %0,%3,%0\n"
278 +                                                 "      bne             1f\n"
279 +                                                 "      stwcx.  %2,0,%1\n"
280 +                                                 "      bne-    0b\n"
281 +                                                 "1:    "
282 +                                                 : "=&r" (ret)
283 +                                                 : "r" (p), "r" (1), "r" (0)
284 +                                                 : "cr0", "memory");
285 +        return ret;
286 + }
287 + #endif
288 +
289 + #if defined(__i386__) || defined(__x86_64__)
290 + #define HAVE_TEST_AND_SET 1
291 + static inline int testandset(volatile int *p)
292 + {
293 +        long int ret;
294 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
295 +        __asm__ __volatile__("xchgl %k0, %1"
296 +                                                 : "=r" (ret), "=m" (*p)
297 +                                                 : "0" (1), "m" (*p)
298 +                                                 : "memory");
299 +        return ret;
300 + }
301 + #endif
302 +
303 + #ifdef __s390__
304 + #define HAVE_TEST_AND_SET 1
305 + static inline int testandset(volatile int *p)
306 + {
307 +        int ret;
308 +
309 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
310 +                                                 "   jl    0b"
311 +                                                 : "=&d" (ret)
312 +                                                 : "r" (1), "a" (p), "0" (*p)
313 +                                                 : "cc", "memory" );
314 +        return ret;
315 + }
316 + #endif
317 +
318 + #ifdef __alpha__
319 + #define HAVE_TEST_AND_SET 1
320 + static inline int testandset(volatile int *p)
321 + {
322 +        int ret;
323 +        unsigned long one;
324 +
325 +        __asm__ __volatile__("0:        mov 1,%2\n"
326 +                                                 "      ldl_l %0,%1\n"
327 +                                                 "      stl_c %2,%1\n"
328 +                                                 "      beq %2,1f\n"
329 +                                                 ".subsection 2\n"
330 +                                                 "1:    br 0b\n"
331 +                                                 ".previous"
332 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
333 +                                                 : "m" (*p));
334 +        return ret;
335 + }
336 + #endif
337 +
338 + #ifdef __sparc__
339 + #define HAVE_TEST_AND_SET 1
340 + static inline int testandset(volatile int *p)
341 + {
342 +        int ret;
343 +
344 +        __asm__ __volatile__("ldstub    [%1], %0"
345 +                                                 : "=r" (ret)
346 +                                                 : "r" (p)
347 +                                                 : "memory");
348 +
349 +        return (ret ? 1 : 0);
350 + }
351 + #endif
352 +
353 + #ifdef __arm__
354 + #define HAVE_TEST_AND_SET 1
355 + static inline int testandset(volatile int *p)
356 + {
357 +        register unsigned int ret;
358 +        __asm__ __volatile__("swp %0, %1, [%2]"
359 +                                                 : "=r"(ret)
360 +                                                 : "0"(1), "r"(p));
361 +        
362 +        return ret;
363 + }
364 + #endif
365 +
366 + #endif /* __GNUC__ */
367 +
368 + typedef volatile int spinlock_t;
369 +
370 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
371 +
372 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
373 + // There is nothing to lock if we are not in an multithreaded environment
374 + #define HAVE_SPINLOCKS 1
375 + static inline void spin_lock(spinlock_t *lock)
376 + {
377 +        while (testandset(lock));
378 + }
379 +
380 + static inline void spin_unlock(spinlock_t *lock)
381 + {
382 +        *lock = 0;
383 + }
384 +
385 + static inline int spin_trylock(spinlock_t *lock)
386 + {
387 +        return !testandset(lock);
388 + }
389 + #else
390 + static inline void spin_lock(spinlock_t *lock)
391 + {
392 + }
393 +
394 + static inline void spin_unlock(spinlock_t *lock)
395 + {
396 + }
397 +
398 + static inline int spin_trylock(spinlock_t *lock)
399 + {
400 +        return 1;
401 + }
402 + #endif
403  
404   // Time data type for Time Manager emulation
405   #ifdef HAVE_CLOCK_GETTIME
406   typedef struct timespec tm_time_t;
407 + #elif defined(__MACH__)
408 + typedef mach_timespec_t tm_time_t;
409   #else
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 + #elif defined(HAVE_PTHREADS) && defined(__MACH__)
426 + #define PRECISE_TIMING 1
427 + #define PRECISE_TIMING_MACH 1
428 + #endif
429 +
430 + // Timing functions
431 + extern uint64 GetTicks_usec(void);
432 + extern void Delay_usec(uint32 usec);
433 +
434 + #ifdef HAVE_PTHREADS
435 + // Setup pthread attributes
436 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
437 + #endif
438 +
439   // Various definitions
440   typedef struct rgb_color {
441          uint8           red;
# Line 114 | Line 444 | typedef struct rgb_color {
444          uint8           alpha;
445   } rgb_color;
446  
447 + // X11 display fast locks
448 + #if defined(HAVE_PTHREADS)
449 + #define X11_LOCK_TYPE pthread_mutex_t
450 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
451 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
452 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
453 + #elif defined(HAVE_SPINLOCKS)
454 + #define X11_LOCK_TYPE spinlock_t
455 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
456 + #define XDisplayLock() spin_lock(&x_display_lock)
457 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
458 + #else
459 + #define XDisplayLock()
460 + #define XDisplayUnlock()
461 + #endif
462 + #ifdef X11_LOCK_TYPE
463 + extern X11_LOCK_TYPE x_display_lock;
464 + #endif
465 +
466   // Macro for calling MacOS routines
467 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
468 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
469 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
470 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
471 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
472 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
473 < #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)
474 < #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)
475 <
476 < extern "C" uint32 call_macos(uint32 tvect);
477 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
478 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
479 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
480 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
481 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
482 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
483 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
467 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
468 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
469 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
470 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
471 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
472 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
473 > #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)
474 > #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)
475 >
476 > #ifdef __cplusplus
477 > extern "C" {
478 > #endif
479 > extern uint32 call_macos(uint32 tvect);
480 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
481 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
482 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
483 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
484 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
485 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
486 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
487 > #ifdef __cplusplus
488 > }
489 > #endif
490  
491   #endif

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