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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.58 by asvitkine, 2008-06-20T00:50:33Z

# 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 > // 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 + #define USE_ETHER_FULL_DRIVER 1
94 +
95   #define POWERPC_ROM 1
96  
97 + #if EMULATED_PPC
98 + // Mac ROM is write protected when banked memory is used
99 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
100 + # define ROM_IS_WRITE_PROTECTED 0
101 + # define USE_SCRATCHMEM_SUBTERFUGE 1
102 + #else
103 + # define ROM_IS_WRITE_PROTECTED 1
104 + #endif
105 + // Configure PowerPC emulator
106 + #define PPC_REENTRANT_JIT 1
107 + #define PPC_CHECK_INTERRUPTS 1
108 + #define PPC_DECODE_CACHE 1
109 + #define PPC_FLIGHT_RECORDER 1
110 + #define PPC_PROFILE_COMPILE_TIME 0
111 + #define PPC_PROFILE_GENERIC_CALLS 0
112 + #define PPC_PROFILE_REGS_USE 0
113 + #define KPX_MAX_CPUS 1
114 + #if ENABLE_DYNGEN
115 + #define PPC_ENABLE_JIT 1
116 + #endif
117 + #if defined(__i386__) || defined(__x86_64__)
118 + #define DYNGEN_ASM_OPTS 1
119 + #endif
120 + #else
121 + // Mac ROM is write protected
122 + #define ROM_IS_WRITE_PROTECTED 1
123 + #define USE_SCRATCHMEM_SUBTERFUGE 0
124 + #endif
125 +
126   // Data types
127   typedef unsigned char uint8;
128   typedef signed char int8;
# Line 92 | Line 147 | typedef long int32;
147   #if SIZEOF_LONG == 8
148   typedef unsigned long uint64;
149   typedef long int64;
150 + #define VAL64(a) (a ## l)
151 + #define UVAL64(a) (a ## ul)
152   #elif SIZEOF_LONG_LONG == 8
153   typedef unsigned long long uint64;
154   typedef long long int64;
155 + #define VAL64(a) (a ## LL)
156 + #define UVAL64(a) (a ## uLL)
157   #else
158   #error "No 8 byte type, you lose."
159   #endif
160 + #if SIZEOF_VOID_P == 4
161 + typedef uint32 uintptr;
162 + typedef int32 intptr;
163 + #elif SIZEOF_VOID_P == 8
164 + typedef uint64 uintptr;
165 + typedef int64 intptr;
166 + #else
167 + #error "Unsupported size of pointer"
168 + #endif
169 +
170 + // Define if the host processor supports fast unaligned load/stores
171 + #if defined __i386__ || defined __x86_64__
172 + #define UNALIGNED_PROFITABLE 1
173 + #endif
174 +
175 +
176 + /**
177 + *              Helper functions to byteswap data
178 + **/
179 +
180 + #if defined(__GNUC__)
181 + #if defined(__x86_64__) || defined(__i386__)
182 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
183 + #define opt_bswap_32 do_opt_bswap_32
184 + static inline uint32 do_opt_bswap_32(uint32 x)
185 + {
186 +  uint32 v;
187 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
188 +  return v;
189 + }
190 + #endif
191 + #endif
192 +
193 + #ifdef HAVE_BYTESWAP_H
194 + #include <byteswap.h>
195 + #endif
196 +
197 + #ifdef  opt_bswap_16
198 + #undef  bswap_16
199 + #define bswap_16 opt_bswap_16
200 + #endif
201 + #ifndef bswap_16
202 + #define bswap_16 generic_bswap_16
203 + #endif
204 +
205 + static inline uint16 generic_bswap_16(uint16 x)
206 + {
207 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
208 + }
209 +
210 + #ifdef  opt_bswap_32
211 + #undef  bswap_32
212 + #define bswap_32 opt_bswap_32
213 + #endif
214 + #ifndef bswap_32
215 + #define bswap_32 generic_bswap_32
216 + #endif
217 +
218 + static inline uint32 generic_bswap_32(uint32 x)
219 + {
220 +  return (((x & 0xff000000) >> 24) |
221 +                  ((x & 0x00ff0000) >>  8) |
222 +                  ((x & 0x0000ff00) <<  8) |
223 +                  ((x & 0x000000ff) << 24) );
224 + }
225 +
226 + #if defined(__i386__)
227 + #define opt_bswap_64 do_opt_bswap_64
228 + static inline uint64 do_opt_bswap_64(uint64 x)
229 + {
230 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
231 + }
232 + #endif
233 +
234 + #ifdef  opt_bswap_64
235 + #undef  bswap_64
236 + #define bswap_64 opt_bswap_64
237 + #endif
238 + #ifndef bswap_64
239 + #define bswap_64 generic_bswap_64
240 + #endif
241 +
242 + static inline uint64 generic_bswap_64(uint64 x)
243 + {
244 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
245 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
246 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
247 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
248 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
249 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
250 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
251 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
252 + }
253 +
254 + #ifdef WORDS_BIGENDIAN
255 + static inline uint16 tswap16(uint16 x) { return x; }
256 + static inline uint32 tswap32(uint32 x) { return x; }
257 + static inline uint64 tswap64(uint64 x) { return x; }
258 + #else
259 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
260 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
261 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
262 + #endif
263 +
264 + // spin locks
265 + #ifdef __GNUC__
266 +
267 + #if defined(__powerpc__) || defined(__ppc__)
268 + #define HAVE_TEST_AND_SET 1
269 + static inline int testandset(volatile int *p)
270 + {
271 +        int ret;
272 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
273 +                                                 "      xor.    %0,%3,%0\n"
274 +                                                 "      bne             1f\n"
275 +                                                 "      stwcx.  %2,0,%1\n"
276 +                                                 "      bne-    0b\n"
277 +                                                 "1:    "
278 +                                                 : "=&r" (ret)
279 +                                                 : "r" (p), "r" (1), "r" (0)
280 +                                                 : "cr0", "memory");
281 +        return ret;
282 + }
283 + #endif
284 +
285 + #if defined(__i386__) || defined(__x86_64__)
286 + #define HAVE_TEST_AND_SET 1
287 + static inline int testandset(volatile int *p)
288 + {
289 +        long int ret;
290 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
291 +        __asm__ __volatile__("xchgl %k0, %1"
292 +                                                 : "=r" (ret), "=m" (*p)
293 +                                                 : "0" (1), "m" (*p)
294 +                                                 : "memory");
295 +        return ret;
296 + }
297 + #endif
298 +
299 + #ifdef __s390__
300 + #define HAVE_TEST_AND_SET 1
301 + static inline int testandset(volatile int *p)
302 + {
303 +        int ret;
304 +
305 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
306 +                                                 "   jl    0b"
307 +                                                 : "=&d" (ret)
308 +                                                 : "r" (1), "a" (p), "0" (*p)
309 +                                                 : "cc", "memory" );
310 +        return ret;
311 + }
312 + #endif
313 +
314 + #ifdef __alpha__
315 + #define HAVE_TEST_AND_SET 1
316 + static inline int testandset(volatile int *p)
317 + {
318 +        int ret;
319 +        unsigned long one;
320 +
321 +        __asm__ __volatile__("0:        mov 1,%2\n"
322 +                                                 "      ldl_l %0,%1\n"
323 +                                                 "      stl_c %2,%1\n"
324 +                                                 "      beq %2,1f\n"
325 +                                                 ".subsection 2\n"
326 +                                                 "1:    br 0b\n"
327 +                                                 ".previous"
328 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
329 +                                                 : "m" (*p));
330 +        return ret;
331 + }
332 + #endif
333 +
334 + #ifdef __sparc__
335 + #define HAVE_TEST_AND_SET 1
336 + static inline int testandset(volatile int *p)
337 + {
338 +        int ret;
339 +
340 +        __asm__ __volatile__("ldstub    [%1], %0"
341 +                                                 : "=r" (ret)
342 +                                                 : "r" (p)
343 +                                                 : "memory");
344 +
345 +        return (ret ? 1 : 0);
346 + }
347 + #endif
348 +
349 + #ifdef __arm__
350 + #define HAVE_TEST_AND_SET 1
351 + static inline int testandset(volatile int *p)
352 + {
353 +        register unsigned int ret;
354 +        __asm__ __volatile__("swp %0, %1, [%2]"
355 +                                                 : "=r"(ret)
356 +                                                 : "0"(1), "r"(p));
357 +        
358 +        return ret;
359 + }
360 + #endif
361 +
362 + #endif /* __GNUC__ */
363 +
364 + typedef volatile int spinlock_t;
365 +
366 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
367 +
368 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
369 + // There is nothing to lock if we are not in an multithreaded environment
370 + #define HAVE_SPINLOCKS 1
371 + static inline void spin_lock(spinlock_t *lock)
372 + {
373 +        while (testandset(lock));
374 + }
375 +
376 + static inline void spin_unlock(spinlock_t *lock)
377 + {
378 +        *lock = 0;
379 + }
380 +
381 + static inline int spin_trylock(spinlock_t *lock)
382 + {
383 +        return !testandset(lock);
384 + }
385 + #else
386 + static inline void spin_lock(spinlock_t *lock)
387 + {
388 + }
389 +
390 + static inline void spin_unlock(spinlock_t *lock)
391 + {
392 + }
393 +
394 + static inline int spin_trylock(spinlock_t *lock)
395 + {
396 +        return 1;
397 + }
398 + #endif
399  
400   // Time data type for Time Manager emulation
401   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 404 | typedef struct timespec tm_time_t;
404   typedef struct timeval tm_time_t;
405   #endif
406  
407 + /* Define codes for all the float formats that we know of.
408 + * Though we only handle IEEE format.  */
409 + #define UNKNOWN_FLOAT_FORMAT 0
410 + #define IEEE_FLOAT_FORMAT 1
411 + #define VAX_FLOAT_FORMAT 2
412 + #define IBM_FLOAT_FORMAT 3
413 + #define C4X_FLOAT_FORMAT 4
414 +
415 + // High-precision timing
416 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
417 + #define PRECISE_TIMING 1
418 + #define PRECISE_TIMING_POSIX 1
419 + #endif
420 +
421 + // Timing functions
422 + extern uint64 GetTicks_usec(void);
423 + extern void Delay_usec(uint32 usec);
424 +
425 + #ifdef HAVE_PTHREADS
426 + // Setup pthread attributes
427 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
428 + #endif
429 +
430   // Various definitions
431   typedef struct rgb_color {
432          uint8           red;
# Line 114 | Line 435 | typedef struct rgb_color {
435          uint8           alpha;
436   } rgb_color;
437  
438 + // X11 display fast locks
439 + #if defined(HAVE_PTHREADS)
440 + #define X11_LOCK_TYPE pthread_mutex_t
441 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
442 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
443 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
444 + #elif defined(HAVE_SPINLOCKS)
445 + #define X11_LOCK_TYPE spinlock_t
446 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
447 + #define XDisplayLock() spin_lock(&x_display_lock)
448 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
449 + #else
450 + #define XDisplayLock()
451 + #define XDisplayUnlock()
452 + #endif
453 + #ifdef X11_LOCK_TYPE
454 + extern X11_LOCK_TYPE x_display_lock;
455 + #endif
456 +
457   // Macro for calling MacOS routines
458 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
459 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
460 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
461 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
462 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
463 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
464 < #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)
465 < #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)
466 <
467 < extern "C" uint32 call_macos(uint32 tvect);
468 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
469 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
470 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
471 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
472 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
473 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
474 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
458 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
459 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
460 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
461 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
462 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
463 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
464 > #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)
465 > #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)
466 >
467 > #ifdef __cplusplus
468 > extern "C" {
469 > #endif
470 > extern uint32 call_macos(uint32 tvect);
471 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
472 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
473 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
474 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
475 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
476 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
477 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
478 > #ifdef __cplusplus
479 > }
480 > #endif
481  
482   #endif

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