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 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.47 by gbeauche, 2005-07-03T13:39:06Z

# 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   #define POWERPC_ROM 1
93  
94 + #if EMULATED_PPC
95 + // Mac ROM is write protected when banked memory is used
96 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
97 + # define ROM_IS_WRITE_PROTECTED 0
98 + # define USE_SCRATCHMEM_SUBTERFUGE 1
99 + #else
100 + # define ROM_IS_WRITE_PROTECTED 1
101 + #endif
102 + // Configure PowerPC emulator
103 + #define PPC_REENTRANT_JIT 1
104 + #define PPC_CHECK_INTERRUPTS 1
105 + #define PPC_DECODE_CACHE 1
106 + #define PPC_FLIGHT_RECORDER 1
107 + #define PPC_PROFILE_COMPILE_TIME 0
108 + #define PPC_PROFILE_GENERIC_CALLS 0
109 + #define KPX_MAX_CPUS 1
110 + #if ENABLE_DYNGEN
111 + // Don't bother with predecode cache when using JIT
112 + #define PPC_ENABLE_JIT 1
113 + #undef  PPC_DECODE_CACHE
114 + #endif
115 + #if defined(__i386__)
116 + #define DYNGEN_ASM_OPTS 1
117 + #endif
118 + #else
119 + // Mac ROM is write protected
120 + #define ROM_IS_WRITE_PROTECTED 1
121 + #define USE_SCRATCHMEM_SUBTERFUGE 0
122 + #endif
123 +
124   // Data types
125   typedef unsigned char uint8;
126   typedef signed char int8;
# Line 92 | Line 145 | typedef long int32;
145   #if SIZEOF_LONG == 8
146   typedef unsigned long uint64;
147   typedef long int64;
148 + #define VAL64(a) (a ## l)
149 + #define UVAL64(a) (a ## ul)
150   #elif SIZEOF_LONG_LONG == 8
151   typedef unsigned long long uint64;
152   typedef long long int64;
153 + #define VAL64(a) (a ## LL)
154 + #define UVAL64(a) (a ## uLL)
155   #else
156   #error "No 8 byte type, you lose."
157   #endif
158 + #if SIZEOF_VOID_P == 4
159 + typedef uint32 uintptr;
160 + typedef int32 intptr;
161 + #elif SIZEOF_VOID_P == 8
162 + typedef uint64 uintptr;
163 + typedef int64 intptr;
164 + #else
165 + #error "Unsupported size of pointer"
166 + #endif
167 +
168 + /**
169 + *              Helper functions to byteswap data
170 + **/
171 +
172 + #if defined(__GNUC__)
173 + #if defined(__x86_64__) || defined(__i386__)
174 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
175 + #define opt_bswap_32 do_opt_bswap_32
176 + static inline uint32 do_opt_bswap_32(uint32 x)
177 + {
178 +  uint32 v;
179 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
180 +  return v;
181 + }
182 + #endif
183 + #endif
184 +
185 + #ifdef HAVE_BYTESWAP_H
186 + #include <byteswap.h>
187 + #endif
188 +
189 + #ifdef  opt_bswap_16
190 + #undef  bswap_16
191 + #define bswap_16 opt_bswap_16
192 + #endif
193 + #ifndef bswap_16
194 + #define bswap_16 generic_bswap_16
195 + #endif
196 +
197 + static inline uint16 generic_bswap_16(uint16 x)
198 + {
199 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
200 + }
201 +
202 + #ifdef  opt_bswap_32
203 + #undef  bswap_32
204 + #define bswap_32 opt_bswap_32
205 + #endif
206 + #ifndef bswap_32
207 + #define bswap_32 generic_bswap_32
208 + #endif
209 +
210 + static inline uint32 generic_bswap_32(uint32 x)
211 + {
212 +  return (((x & 0xff000000) >> 24) |
213 +                  ((x & 0x00ff0000) >>  8) |
214 +                  ((x & 0x0000ff00) <<  8) |
215 +                  ((x & 0x000000ff) << 24) );
216 + }
217 +
218 + #if defined(__i386__)
219 + #define opt_bswap_64 do_opt_bswap_64
220 + static inline uint64 do_opt_bswap_64(uint64 x)
221 + {
222 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
223 + }
224 + #endif
225 +
226 + #ifdef  opt_bswap_64
227 + #undef  bswap_64
228 + #define bswap_64 opt_bswap_64
229 + #endif
230 + #ifndef bswap_64
231 + #define bswap_64 generic_bswap_64
232 + #endif
233 +
234 + static inline uint64 generic_bswap_64(uint64 x)
235 + {
236 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
237 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
238 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
239 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
240 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
241 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
242 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
243 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
244 + }
245 +
246 + #ifdef WORDS_BIGENDIAN
247 + static inline uint16 tswap16(uint16 x) { return x; }
248 + static inline uint32 tswap32(uint32 x) { return x; }
249 + static inline uint64 tswap64(uint64 x) { return x; }
250 + #else
251 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
252 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
253 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
254 + #endif
255 +
256 + // spin locks
257 + #ifdef __GNUC__
258 +
259 + #if defined(__powerpc__) || defined(__ppc__)
260 + #define HAVE_TEST_AND_SET 1
261 + static inline int testandset(volatile int *p)
262 + {
263 +        int ret;
264 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
265 +                                                 "      xor.    %0,%3,%0\n"
266 +                                                 "      bne             1f\n"
267 +                                                 "      stwcx.  %2,0,%1\n"
268 +                                                 "      bne-    0b\n"
269 +                                                 "1:    "
270 +                                                 : "=&r" (ret)
271 +                                                 : "r" (p), "r" (1), "r" (0)
272 +                                                 : "cr0", "memory");
273 +        return ret;
274 + }
275 + #endif
276 +
277 + #if defined(__i386__) || defined(__x86_64__)
278 + #define HAVE_TEST_AND_SET 1
279 + static inline int testandset(volatile int *p)
280 + {
281 +        long int ret;
282 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
283 +        __asm__ __volatile__("xchgl %k0, %1"
284 +                                                 : "=r" (ret), "=m" (*p)
285 +                                                 : "0" (1), "m" (*p)
286 +                                                 : "memory");
287 +        return ret;
288 + }
289 + #endif
290 +
291 + #ifdef __s390__
292 + #define HAVE_TEST_AND_SET 1
293 + static inline int testandset(volatile int *p)
294 + {
295 +        int ret;
296 +
297 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
298 +                                                 "   jl    0b"
299 +                                                 : "=&d" (ret)
300 +                                                 : "r" (1), "a" (p), "0" (*p)
301 +                                                 : "cc", "memory" );
302 +        return ret;
303 + }
304 + #endif
305 +
306 + #ifdef __alpha__
307 + #define HAVE_TEST_AND_SET 1
308 + static inline int testandset(volatile int *p)
309 + {
310 +        int ret;
311 +        unsigned long one;
312 +
313 +        __asm__ __volatile__("0:        mov 1,%2\n"
314 +                                                 "      ldl_l %0,%1\n"
315 +                                                 "      stl_c %2,%1\n"
316 +                                                 "      beq %2,1f\n"
317 +                                                 ".subsection 2\n"
318 +                                                 "1:    br 0b\n"
319 +                                                 ".previous"
320 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
321 +                                                 : "m" (*p));
322 +        return ret;
323 + }
324 + #endif
325 +
326 + #ifdef __sparc__
327 + #define HAVE_TEST_AND_SET 1
328 + static inline int testandset(volatile int *p)
329 + {
330 +        int ret;
331 +
332 +        __asm__ __volatile__("ldstub    [%1], %0"
333 +                                                 : "=r" (ret)
334 +                                                 : "r" (p)
335 +                                                 : "memory");
336 +
337 +        return (ret ? 1 : 0);
338 + }
339 + #endif
340 +
341 + #ifdef __arm__
342 + #define HAVE_TEST_AND_SET 1
343 + static inline int testandset(volatile int *p)
344 + {
345 +        register unsigned int ret;
346 +        __asm__ __volatile__("swp %0, %1, [%2]"
347 +                                                 : "=r"(ret)
348 +                                                 : "0"(1), "r"(p));
349 +        
350 +        return ret;
351 + }
352 + #endif
353 +
354 + #endif /* __GNUC__ */
355 +
356 + typedef volatile int spinlock_t;
357 +
358 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
359 +
360 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
361 + // There is nothing to lock if we are not in an multithreaded environment
362 + #define HAVE_SPINLOCKS 1
363 + static inline void spin_lock(spinlock_t *lock)
364 + {
365 +        while (testandset(lock));
366 + }
367 +
368 + static inline void spin_unlock(spinlock_t *lock)
369 + {
370 +        *lock = 0;
371 + }
372 +
373 + static inline int spin_trylock(spinlock_t *lock)
374 + {
375 +        return !testandset(lock);
376 + }
377 + #else
378 + static inline void spin_lock(spinlock_t *lock)
379 + {
380 + }
381 +
382 + static inline void spin_unlock(spinlock_t *lock)
383 + {
384 + }
385 +
386 + static inline int spin_trylock(spinlock_t *lock)
387 + {
388 +        return 1;
389 + }
390 + #endif
391  
392   // Time data type for Time Manager emulation
393   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 396 | typedef struct timespec tm_time_t;
396   typedef struct timeval tm_time_t;
397   #endif
398  
399 + /* Define codes for all the float formats that we know of.
400 + * Though we only handle IEEE format.  */
401 + #define UNKNOWN_FLOAT_FORMAT 0
402 + #define IEEE_FLOAT_FORMAT 1
403 + #define VAX_FLOAT_FORMAT 2
404 + #define IBM_FLOAT_FORMAT 3
405 + #define C4X_FLOAT_FORMAT 4
406 +
407 + // High-precision timing
408 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
409 + #define PRECISE_TIMING 1
410 + #define PRECISE_TIMING_POSIX 1
411 + #endif
412 +
413 + // Timing functions
414 + extern uint64 GetTicks_usec(void);
415 + extern void Delay_usec(uint32 usec);
416 +
417 + #ifdef HAVE_PTHREADS
418 + // Setup pthread attributes
419 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
420 + #endif
421 +
422   // Various definitions
423   typedef struct rgb_color {
424          uint8           red;
# Line 114 | Line 427 | typedef struct rgb_color {
427          uint8           alpha;
428   } rgb_color;
429  
430 + // X11 display fast locks
431 + #if defined(HAVE_PTHREADS)
432 + #define X11_LOCK_TYPE pthread_mutex_t
433 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
434 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
435 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
436 + #elif defined(HAVE_SPINLOCKS)
437 + #define X11_LOCK_TYPE spinlock_t
438 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
439 + #define XDisplayLock() spin_lock(&x_display_lock)
440 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
441 + #else
442 + #define XDisplayLock()
443 + #define XDisplayUnlock()
444 + #endif
445 + #ifdef X11_LOCK_TYPE
446 + extern X11_LOCK_TYPE x_display_lock;
447 + #endif
448 +
449   // Macro for calling MacOS routines
450 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
451 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
452 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
453 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
454 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
455 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
456 < #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)
457 < #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)
458 <
459 < extern "C" uint32 call_macos(uint32 tvect);
460 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
461 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
462 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
463 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
464 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
465 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
466 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
450 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
451 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
452 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
453 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
454 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
455 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
456 > #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)
457 > #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)
458 >
459 > #ifdef __cplusplus
460 > extern "C" {
461 > #endif
462 > extern uint32 call_macos(uint32 tvect);
463 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
464 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
465 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
466 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
467 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
468 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
469 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
470 > #ifdef __cplusplus
471 > }
472 > #endif
473  
474   #endif

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines