ViewVC Help
View File | Revision Log | Show Annotations | Revision Graph | Root Listing
root/cebix/SheepShaver/src/Unix/sysdeps.h
(Generate patch)

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.2 by cebix, 2002-02-21T15:12:12Z vs.
Revision 1.51 by gbeauche, 2006-04-01T21:41:18Z

# 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 + /**
170 + *              Helper macros to annotate likely branch directions
171 + **/
172 +
173 + #if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
174 + #define likely(x)               __builtin_expect((x),1)
175 + #define unlikely(x)             __builtin_expect((x),0)
176 + #endif
177 + #ifndef likely
178 + #define likely(x)               (x)
179 + #endif
180 + #ifndef unlikely
181 + #define unlikely(x)             (x)
182 + #endif
183 +
184 + /**
185 + *              Helper functions to byteswap data
186 + **/
187 +
188 + #if defined(__GNUC__)
189 + #if defined(__x86_64__) || defined(__i386__)
190 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
191 + #define opt_bswap_32 do_opt_bswap_32
192 + static inline uint32 do_opt_bswap_32(uint32 x)
193 + {
194 +  uint32 v;
195 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
196 +  return v;
197 + }
198 + #endif
199 + #endif
200 +
201 + #ifdef HAVE_BYTESWAP_H
202 + #include <byteswap.h>
203 + #endif
204 +
205 + #ifdef  opt_bswap_16
206 + #undef  bswap_16
207 + #define bswap_16 opt_bswap_16
208 + #endif
209 + #ifndef bswap_16
210 + #define bswap_16 generic_bswap_16
211 + #endif
212 +
213 + static inline uint16 generic_bswap_16(uint16 x)
214 + {
215 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
216 + }
217 +
218 + #ifdef  opt_bswap_32
219 + #undef  bswap_32
220 + #define bswap_32 opt_bswap_32
221 + #endif
222 + #ifndef bswap_32
223 + #define bswap_32 generic_bswap_32
224 + #endif
225 +
226 + static inline uint32 generic_bswap_32(uint32 x)
227 + {
228 +  return (((x & 0xff000000) >> 24) |
229 +                  ((x & 0x00ff0000) >>  8) |
230 +                  ((x & 0x0000ff00) <<  8) |
231 +                  ((x & 0x000000ff) << 24) );
232 + }
233 +
234 + #if defined(__i386__)
235 + #define opt_bswap_64 do_opt_bswap_64
236 + static inline uint64 do_opt_bswap_64(uint64 x)
237 + {
238 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
239 + }
240 + #endif
241 +
242 + #ifdef  opt_bswap_64
243 + #undef  bswap_64
244 + #define bswap_64 opt_bswap_64
245 + #endif
246 + #ifndef bswap_64
247 + #define bswap_64 generic_bswap_64
248 + #endif
249 +
250 + static inline uint64 generic_bswap_64(uint64 x)
251 + {
252 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
253 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
254 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
255 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
256 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
257 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
258 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
259 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
260 + }
261 +
262 + #ifdef WORDS_BIGENDIAN
263 + static inline uint16 tswap16(uint16 x) { return x; }
264 + static inline uint32 tswap32(uint32 x) { return x; }
265 + static inline uint64 tswap64(uint64 x) { return x; }
266 + #else
267 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
268 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
269 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
270 + #endif
271 +
272 + // spin locks
273 + #ifdef __GNUC__
274 +
275 + #if defined(__powerpc__) || defined(__ppc__)
276 + #define HAVE_TEST_AND_SET 1
277 + static inline int testandset(volatile int *p)
278 + {
279 +        int ret;
280 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
281 +                                                 "      xor.    %0,%3,%0\n"
282 +                                                 "      bne             1f\n"
283 +                                                 "      stwcx.  %2,0,%1\n"
284 +                                                 "      bne-    0b\n"
285 +                                                 "1:    "
286 +                                                 : "=&r" (ret)
287 +                                                 : "r" (p), "r" (1), "r" (0)
288 +                                                 : "cr0", "memory");
289 +        return ret;
290 + }
291 + #endif
292 +
293 + #if defined(__i386__) || defined(__x86_64__)
294 + #define HAVE_TEST_AND_SET 1
295 + static inline int testandset(volatile int *p)
296 + {
297 +        long int ret;
298 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
299 +        __asm__ __volatile__("xchgl %k0, %1"
300 +                                                 : "=r" (ret), "=m" (*p)
301 +                                                 : "0" (1), "m" (*p)
302 +                                                 : "memory");
303 +        return ret;
304 + }
305 + #endif
306 +
307 + #ifdef __s390__
308 + #define HAVE_TEST_AND_SET 1
309 + static inline int testandset(volatile int *p)
310 + {
311 +        int ret;
312 +
313 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
314 +                                                 "   jl    0b"
315 +                                                 : "=&d" (ret)
316 +                                                 : "r" (1), "a" (p), "0" (*p)
317 +                                                 : "cc", "memory" );
318 +        return ret;
319 + }
320 + #endif
321 +
322 + #ifdef __alpha__
323 + #define HAVE_TEST_AND_SET 1
324 + static inline int testandset(volatile int *p)
325 + {
326 +        int ret;
327 +        unsigned long one;
328 +
329 +        __asm__ __volatile__("0:        mov 1,%2\n"
330 +                                                 "      ldl_l %0,%1\n"
331 +                                                 "      stl_c %2,%1\n"
332 +                                                 "      beq %2,1f\n"
333 +                                                 ".subsection 2\n"
334 +                                                 "1:    br 0b\n"
335 +                                                 ".previous"
336 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
337 +                                                 : "m" (*p));
338 +        return ret;
339 + }
340 + #endif
341 +
342 + #ifdef __sparc__
343 + #define HAVE_TEST_AND_SET 1
344 + static inline int testandset(volatile int *p)
345 + {
346 +        int ret;
347 +
348 +        __asm__ __volatile__("ldstub    [%1], %0"
349 +                                                 : "=r" (ret)
350 +                                                 : "r" (p)
351 +                                                 : "memory");
352 +
353 +        return (ret ? 1 : 0);
354 + }
355 + #endif
356 +
357 + #ifdef __arm__
358 + #define HAVE_TEST_AND_SET 1
359 + static inline int testandset(volatile int *p)
360 + {
361 +        register unsigned int ret;
362 +        __asm__ __volatile__("swp %0, %1, [%2]"
363 +                                                 : "=r"(ret)
364 +                                                 : "0"(1), "r"(p));
365 +        
366 +        return ret;
367 + }
368 + #endif
369 +
370 + #endif /* __GNUC__ */
371 +
372 + typedef volatile int spinlock_t;
373 +
374 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
375 +
376 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
377 + // There is nothing to lock if we are not in an multithreaded environment
378 + #define HAVE_SPINLOCKS 1
379 + static inline void spin_lock(spinlock_t *lock)
380 + {
381 +        while (testandset(lock));
382 + }
383 +
384 + static inline void spin_unlock(spinlock_t *lock)
385 + {
386 +        *lock = 0;
387 + }
388 +
389 + static inline int spin_trylock(spinlock_t *lock)
390 + {
391 +        return !testandset(lock);
392 + }
393 + #else
394 + static inline void spin_lock(spinlock_t *lock)
395 + {
396 + }
397 +
398 + static inline void spin_unlock(spinlock_t *lock)
399 + {
400 + }
401 +
402 + static inline int spin_trylock(spinlock_t *lock)
403 + {
404 +        return 1;
405 + }
406 + #endif
407  
408   // Time data type for Time Manager emulation
409   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 412 | typedef struct timespec tm_time_t;
412   typedef struct timeval tm_time_t;
413   #endif
414  
415 + /* Define codes for all the float formats that we know of.
416 + * Though we only handle IEEE format.  */
417 + #define UNKNOWN_FLOAT_FORMAT 0
418 + #define IEEE_FLOAT_FORMAT 1
419 + #define VAX_FLOAT_FORMAT 2
420 + #define IBM_FLOAT_FORMAT 3
421 + #define C4X_FLOAT_FORMAT 4
422 +
423 + // High-precision timing
424 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
425 + #define PRECISE_TIMING 1
426 + #define PRECISE_TIMING_POSIX 1
427 + #endif
428 +
429 + // Timing functions
430 + extern uint64 GetTicks_usec(void);
431 + extern void Delay_usec(uint32 usec);
432 +
433 + #ifdef HAVE_PTHREADS
434   // Setup pthread attributes
435   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
436 + #endif
437  
438   // Various definitions
439   typedef struct rgb_color {
# Line 117 | Line 443 | typedef struct rgb_color {
443          uint8           alpha;
444   } rgb_color;
445  
446 + // X11 display fast locks
447 + #if defined(HAVE_PTHREADS)
448 + #define X11_LOCK_TYPE pthread_mutex_t
449 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
450 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
451 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
452 + #elif defined(HAVE_SPINLOCKS)
453 + #define X11_LOCK_TYPE spinlock_t
454 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
455 + #define XDisplayLock() spin_lock(&x_display_lock)
456 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
457 + #else
458 + #define XDisplayLock()
459 + #define XDisplayUnlock()
460 + #endif
461 + #ifdef X11_LOCK_TYPE
462 + extern X11_LOCK_TYPE x_display_lock;
463 + #endif
464 +
465   // Macro for calling MacOS routines
466 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
467 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
468 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
469 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
470 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
471 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
472 < #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)
473 < #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)
474 <
475 < extern "C" uint32 call_macos(uint32 tvect);
476 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
477 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
478 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
479 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
480 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
481 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
482 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
466 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
467 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
468 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
469 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
470 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
471 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
472 > #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)
473 > #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)
474 >
475 > #ifdef __cplusplus
476 > extern "C" {
477 > #endif
478 > extern uint32 call_macos(uint32 tvect);
479 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
480 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
481 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
482 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
483 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
484 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
485 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
486 > #ifdef __cplusplus
487 > }
488 > #endif
489  
490   #endif

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines