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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.53 by gbeauche, 2006-05-07T16:54:58Z

# 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 + #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 KPX_MAX_CPUS 1
113 + #if ENABLE_DYNGEN
114 + #define PPC_ENABLE_JIT 1
115 + #endif
116 + #if defined(__i386__)
117 + #define DYNGEN_ASM_OPTS 1
118 + #endif
119 + #else
120 + // Mac ROM is write protected
121 + #define ROM_IS_WRITE_PROTECTED 1
122 + #define USE_SCRATCHMEM_SUBTERFUGE 0
123 + #endif
124 +
125   // Data types
126   typedef unsigned char uint8;
127   typedef signed char int8;
# Line 92 | Line 146 | typedef long int32;
146   #if SIZEOF_LONG == 8
147   typedef unsigned long uint64;
148   typedef long int64;
149 + #define VAL64(a) (a ## l)
150 + #define UVAL64(a) (a ## ul)
151   #elif SIZEOF_LONG_LONG == 8
152   typedef unsigned long long uint64;
153   typedef long long int64;
154 + #define VAL64(a) (a ## LL)
155 + #define UVAL64(a) (a ## uLL)
156   #else
157   #error "No 8 byte type, you lose."
158   #endif
159 + #if SIZEOF_VOID_P == 4
160 + typedef uint32 uintptr;
161 + typedef int32 intptr;
162 + #elif SIZEOF_VOID_P == 8
163 + typedef uint64 uintptr;
164 + typedef int64 intptr;
165 + #else
166 + #error "Unsupported size of pointer"
167 + #endif
168 +
169 + // Define if the host processor supports fast unaligned load/stores
170 + #if defined __i386__ || defined __x86_64__
171 + #define UNALIGNED_PROFITABLE 1
172 + #endif
173 +
174 +
175 + /**
176 + *              Helper functions to byteswap data
177 + **/
178 +
179 + #if defined(__GNUC__)
180 + #if defined(__x86_64__) || defined(__i386__)
181 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
182 + #define opt_bswap_32 do_opt_bswap_32
183 + static inline uint32 do_opt_bswap_32(uint32 x)
184 + {
185 +  uint32 v;
186 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
187 +  return v;
188 + }
189 + #endif
190 + #endif
191 +
192 + #ifdef HAVE_BYTESWAP_H
193 + #include <byteswap.h>
194 + #endif
195 +
196 + #ifdef  opt_bswap_16
197 + #undef  bswap_16
198 + #define bswap_16 opt_bswap_16
199 + #endif
200 + #ifndef bswap_16
201 + #define bswap_16 generic_bswap_16
202 + #endif
203 +
204 + static inline uint16 generic_bswap_16(uint16 x)
205 + {
206 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
207 + }
208 +
209 + #ifdef  opt_bswap_32
210 + #undef  bswap_32
211 + #define bswap_32 opt_bswap_32
212 + #endif
213 + #ifndef bswap_32
214 + #define bswap_32 generic_bswap_32
215 + #endif
216 +
217 + static inline uint32 generic_bswap_32(uint32 x)
218 + {
219 +  return (((x & 0xff000000) >> 24) |
220 +                  ((x & 0x00ff0000) >>  8) |
221 +                  ((x & 0x0000ff00) <<  8) |
222 +                  ((x & 0x000000ff) << 24) );
223 + }
224 +
225 + #if defined(__i386__)
226 + #define opt_bswap_64 do_opt_bswap_64
227 + static inline uint64 do_opt_bswap_64(uint64 x)
228 + {
229 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
230 + }
231 + #endif
232 +
233 + #ifdef  opt_bswap_64
234 + #undef  bswap_64
235 + #define bswap_64 opt_bswap_64
236 + #endif
237 + #ifndef bswap_64
238 + #define bswap_64 generic_bswap_64
239 + #endif
240 +
241 + static inline uint64 generic_bswap_64(uint64 x)
242 + {
243 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
244 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
245 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
246 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
247 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
248 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
249 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
250 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
251 + }
252 +
253 + #ifdef WORDS_BIGENDIAN
254 + static inline uint16 tswap16(uint16 x) { return x; }
255 + static inline uint32 tswap32(uint32 x) { return x; }
256 + static inline uint64 tswap64(uint64 x) { return x; }
257 + #else
258 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
259 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
260 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
261 + #endif
262 +
263 + // spin locks
264 + #ifdef __GNUC__
265 +
266 + #if defined(__powerpc__) || defined(__ppc__)
267 + #define HAVE_TEST_AND_SET 1
268 + static inline int testandset(volatile int *p)
269 + {
270 +        int ret;
271 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
272 +                                                 "      xor.    %0,%3,%0\n"
273 +                                                 "      bne             1f\n"
274 +                                                 "      stwcx.  %2,0,%1\n"
275 +                                                 "      bne-    0b\n"
276 +                                                 "1:    "
277 +                                                 : "=&r" (ret)
278 +                                                 : "r" (p), "r" (1), "r" (0)
279 +                                                 : "cr0", "memory");
280 +        return ret;
281 + }
282 + #endif
283 +
284 + #if defined(__i386__) || defined(__x86_64__)
285 + #define HAVE_TEST_AND_SET 1
286 + static inline int testandset(volatile int *p)
287 + {
288 +        long int ret;
289 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
290 +        __asm__ __volatile__("xchgl %k0, %1"
291 +                                                 : "=r" (ret), "=m" (*p)
292 +                                                 : "0" (1), "m" (*p)
293 +                                                 : "memory");
294 +        return ret;
295 + }
296 + #endif
297 +
298 + #ifdef __s390__
299 + #define HAVE_TEST_AND_SET 1
300 + static inline int testandset(volatile int *p)
301 + {
302 +        int ret;
303 +
304 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
305 +                                                 "   jl    0b"
306 +                                                 : "=&d" (ret)
307 +                                                 : "r" (1), "a" (p), "0" (*p)
308 +                                                 : "cc", "memory" );
309 +        return ret;
310 + }
311 + #endif
312 +
313 + #ifdef __alpha__
314 + #define HAVE_TEST_AND_SET 1
315 + static inline int testandset(volatile int *p)
316 + {
317 +        int ret;
318 +        unsigned long one;
319 +
320 +        __asm__ __volatile__("0:        mov 1,%2\n"
321 +                                                 "      ldl_l %0,%1\n"
322 +                                                 "      stl_c %2,%1\n"
323 +                                                 "      beq %2,1f\n"
324 +                                                 ".subsection 2\n"
325 +                                                 "1:    br 0b\n"
326 +                                                 ".previous"
327 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
328 +                                                 : "m" (*p));
329 +        return ret;
330 + }
331 + #endif
332 +
333 + #ifdef __sparc__
334 + #define HAVE_TEST_AND_SET 1
335 + static inline int testandset(volatile int *p)
336 + {
337 +        int ret;
338 +
339 +        __asm__ __volatile__("ldstub    [%1], %0"
340 +                                                 : "=r" (ret)
341 +                                                 : "r" (p)
342 +                                                 : "memory");
343 +
344 +        return (ret ? 1 : 0);
345 + }
346 + #endif
347 +
348 + #ifdef __arm__
349 + #define HAVE_TEST_AND_SET 1
350 + static inline int testandset(volatile int *p)
351 + {
352 +        register unsigned int ret;
353 +        __asm__ __volatile__("swp %0, %1, [%2]"
354 +                                                 : "=r"(ret)
355 +                                                 : "0"(1), "r"(p));
356 +        
357 +        return ret;
358 + }
359 + #endif
360 +
361 + #endif /* __GNUC__ */
362 +
363 + typedef volatile int spinlock_t;
364 +
365 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
366 +
367 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
368 + // There is nothing to lock if we are not in an multithreaded environment
369 + #define HAVE_SPINLOCKS 1
370 + static inline void spin_lock(spinlock_t *lock)
371 + {
372 +        while (testandset(lock));
373 + }
374 +
375 + static inline void spin_unlock(spinlock_t *lock)
376 + {
377 +        *lock = 0;
378 + }
379 +
380 + static inline int spin_trylock(spinlock_t *lock)
381 + {
382 +        return !testandset(lock);
383 + }
384 + #else
385 + static inline void spin_lock(spinlock_t *lock)
386 + {
387 + }
388 +
389 + static inline void spin_unlock(spinlock_t *lock)
390 + {
391 + }
392 +
393 + static inline int spin_trylock(spinlock_t *lock)
394 + {
395 +        return 1;
396 + }
397 + #endif
398  
399   // Time data type for Time Manager emulation
400   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 403 | typedef struct timespec tm_time_t;
403   typedef struct timeval tm_time_t;
404   #endif
405  
406 + /* Define codes for all the float formats that we know of.
407 + * Though we only handle IEEE format.  */
408 + #define UNKNOWN_FLOAT_FORMAT 0
409 + #define IEEE_FLOAT_FORMAT 1
410 + #define VAX_FLOAT_FORMAT 2
411 + #define IBM_FLOAT_FORMAT 3
412 + #define C4X_FLOAT_FORMAT 4
413 +
414 + // High-precision timing
415 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
416 + #define PRECISE_TIMING 1
417 + #define PRECISE_TIMING_POSIX 1
418 + #endif
419 +
420 + // Timing functions
421 + extern uint64 GetTicks_usec(void);
422 + extern void Delay_usec(uint32 usec);
423 +
424 + #ifdef HAVE_PTHREADS
425 + // Setup pthread attributes
426 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
427 + #endif
428 +
429   // Various definitions
430   typedef struct rgb_color {
431          uint8           red;
# Line 114 | Line 434 | typedef struct rgb_color {
434          uint8           alpha;
435   } rgb_color;
436  
437 + // X11 display fast locks
438 + #if defined(HAVE_PTHREADS)
439 + #define X11_LOCK_TYPE pthread_mutex_t
440 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
441 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
442 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
443 + #elif defined(HAVE_SPINLOCKS)
444 + #define X11_LOCK_TYPE spinlock_t
445 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
446 + #define XDisplayLock() spin_lock(&x_display_lock)
447 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
448 + #else
449 + #define XDisplayLock()
450 + #define XDisplayUnlock()
451 + #endif
452 + #ifdef X11_LOCK_TYPE
453 + extern X11_LOCK_TYPE x_display_lock;
454 + #endif
455 +
456   // Macro for calling MacOS routines
457 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
458 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
459 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
460 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
461 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
462 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
463 < #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)
464 < #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)
465 <
466 < extern "C" uint32 call_macos(uint32 tvect);
467 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
468 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
469 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
470 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
471 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
472 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
473 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
457 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
458 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
459 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
460 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
461 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
462 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
463 > #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)
464 > #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)
465 >
466 > #ifdef __cplusplus
467 > extern "C" {
468 > #endif
469 > extern uint32 call_macos(uint32 tvect);
470 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
471 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
472 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
473 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
474 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
475 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
476 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
477 > #ifdef __cplusplus
478 > }
479 > #endif
480  
481   #endif

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