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 1.44 by gbeauche, 2005-06-25T11:39:47Z

# 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(__CYGWIN__)
87 > #define DIRECT_ADDRESSING 1
88 > #define DIRECT_ADDRESSING_HACK 1
89 > /*
90 >  The following address translation functions were empirically
91 >  determined on a Windows XP system running Cygwin 1.5.12-1 so
92 >  that RAM size can be maximized (up to 960 MB) and avoiding
93 >  the use of a TLB. This also takes into account reduced address
94 >  space available when the Cygwin runtime is used.
95 > */
96 > #define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
97 >        ((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
98 > #define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
99 >        ((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
100 > #elif defined(NATMEM_OFFSET)
101 > #define DIRECT_ADDRESSING 1
102   #else
103 < #define EMULATED_PPC 1
103 > #define REAL_ADDRESSING 1
104   #endif
105  
106   #define POWERPC_ROM 1
107  
108 + #if EMULATED_PPC
109 + // Mac ROM is write protected when banked memory is used
110 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
111 + # define ROM_IS_WRITE_PROTECTED 0
112 + # define USE_SCRATCHMEM_SUBTERFUGE 1
113 + #else
114 + # define ROM_IS_WRITE_PROTECTED 1
115 + #endif
116 + // Configure PowerPC emulator
117 + #define PPC_REENTRANT_JIT 1
118 + #define PPC_CHECK_INTERRUPTS 1
119 + #define PPC_DECODE_CACHE 1
120 + #define PPC_FLIGHT_RECORDER 1
121 + #define PPC_PROFILE_COMPILE_TIME 0
122 + #define PPC_PROFILE_GENERIC_CALLS 0
123 + #define KPX_MAX_CPUS 1
124 + #if ENABLE_DYNGEN
125 + // Don't bother with predecode cache when using JIT
126 + #define PPC_ENABLE_JIT 1
127 + #undef  PPC_DECODE_CACHE
128 + #endif
129 + #if defined(__i386__)
130 + #define DYNGEN_ASM_OPTS 1
131 + #endif
132 + #else
133 + // Mac ROM is write protected
134 + #define ROM_IS_WRITE_PROTECTED 1
135 + #define USE_SCRATCHMEM_SUBTERFUGE 0
136 + #endif
137 +
138   // Data types
139   typedef unsigned char uint8;
140   typedef signed char int8;
# Line 92 | Line 159 | typedef long int32;
159   #if SIZEOF_LONG == 8
160   typedef unsigned long uint64;
161   typedef long int64;
162 + #define VAL64(a) (a ## l)
163 + #define UVAL64(a) (a ## ul)
164   #elif SIZEOF_LONG_LONG == 8
165   typedef unsigned long long uint64;
166   typedef long long int64;
167 + #define VAL64(a) (a ## LL)
168 + #define UVAL64(a) (a ## uLL)
169   #else
170   #error "No 8 byte type, you lose."
171   #endif
172 + #if SIZEOF_VOID_P == 4
173 + typedef uint32 uintptr;
174 + typedef int32 intptr;
175 + #elif SIZEOF_VOID_P == 8
176 + typedef uint64 uintptr;
177 + typedef int64 intptr;
178 + #else
179 + #error "Unsupported size of pointer"
180 + #endif
181 +
182 + /**
183 + *              Helper functions to byteswap data
184 + **/
185 +
186 + #if defined(__GNUC__)
187 + #if defined(__x86_64__) || defined(__i386__)
188 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
189 + #define opt_bswap_32 do_opt_bswap_32
190 + static inline uint32 do_opt_bswap_32(uint32 x)
191 + {
192 +  uint32 v;
193 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
194 +  return v;
195 + }
196 + #endif
197 + #endif
198 +
199 + #ifdef HAVE_BYTESWAP_H
200 + #include <byteswap.h>
201 + #endif
202 +
203 + #ifdef  opt_bswap_16
204 + #undef  bswap_16
205 + #define bswap_16 opt_bswap_16
206 + #endif
207 + #ifndef bswap_16
208 + #define bswap_16 generic_bswap_16
209 + #endif
210 +
211 + static inline uint16 generic_bswap_16(uint16 x)
212 + {
213 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
214 + }
215 +
216 + #ifdef  opt_bswap_32
217 + #undef  bswap_32
218 + #define bswap_32 opt_bswap_32
219 + #endif
220 + #ifndef bswap_32
221 + #define bswap_32 generic_bswap_32
222 + #endif
223 +
224 + static inline uint32 generic_bswap_32(uint32 x)
225 + {
226 +  return (((x & 0xff000000) >> 24) |
227 +                  ((x & 0x00ff0000) >>  8) |
228 +                  ((x & 0x0000ff00) <<  8) |
229 +                  ((x & 0x000000ff) << 24) );
230 + }
231 +
232 + #if defined(__i386__)
233 + #define opt_bswap_64 do_opt_bswap_64
234 + static inline uint64 do_opt_bswap_64(uint64 x)
235 + {
236 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
237 + }
238 + #endif
239 +
240 + #ifdef  opt_bswap_64
241 + #undef  bswap_64
242 + #define bswap_64 opt_bswap_64
243 + #endif
244 + #ifndef bswap_64
245 + #define bswap_64 generic_bswap_64
246 + #endif
247 +
248 + static inline uint64 generic_bswap_64(uint64 x)
249 + {
250 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
251 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
252 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
253 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
254 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
255 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
256 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
257 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
258 + }
259 +
260 + #ifdef WORDS_BIGENDIAN
261 + static inline uint16 tswap16(uint16 x) { return x; }
262 + static inline uint32 tswap32(uint32 x) { return x; }
263 + static inline uint64 tswap64(uint64 x) { return x; }
264 + #else
265 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
266 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
267 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
268 + #endif
269 +
270 + // spin locks
271 + #ifdef __GNUC__
272 +
273 + #if defined(__powerpc__) || defined(__ppc__)
274 + #define HAVE_TEST_AND_SET 1
275 + static inline int testandset(volatile int *p)
276 + {
277 +        int ret;
278 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
279 +                                                 "      xor.    %0,%3,%0\n"
280 +                                                 "      bne             1f\n"
281 +                                                 "      stwcx.  %2,0,%1\n"
282 +                                                 "      bne-    0b\n"
283 +                                                 "1:    "
284 +                                                 : "=&r" (ret)
285 +                                                 : "r" (p), "r" (1), "r" (0)
286 +                                                 : "cr0", "memory");
287 +        return ret;
288 + }
289 + #endif
290 +
291 + /* FIXME: SheepShaver occasionnally hangs with those locks */
292 + #if 0 && (defined(__i386__) || defined(__x86_64__))
293 + #define HAVE_TEST_AND_SET 1
294 + static inline int testandset(volatile int *p)
295 + {
296 +        long int ret;
297 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
298 +        __asm__ __volatile__("xchgl %k0, %1"
299 +                                                 : "=r" (ret), "=m" (*p)
300 +                                                 : "0" (1), "m" (*p)
301 +                                                 : "memory");
302 +        return ret;
303 + }
304 + #endif
305 +
306 + #ifdef __s390__
307 + #define HAVE_TEST_AND_SET 1
308 + static inline int testandset(volatile int *p)
309 + {
310 +        int ret;
311 +
312 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
313 +                                                 "   jl    0b"
314 +                                                 : "=&d" (ret)
315 +                                                 : "r" (1), "a" (p), "0" (*p)
316 +                                                 : "cc", "memory" );
317 +        return ret;
318 + }
319 + #endif
320 +
321 + #ifdef __alpha__
322 + #define HAVE_TEST_AND_SET 1
323 + static inline int testandset(volatile int *p)
324 + {
325 +        int ret;
326 +        unsigned long one;
327 +
328 +        __asm__ __volatile__("0:        mov 1,%2\n"
329 +                                                 "      ldl_l %0,%1\n"
330 +                                                 "      stl_c %2,%1\n"
331 +                                                 "      beq %2,1f\n"
332 +                                                 ".subsection 2\n"
333 +                                                 "1:    br 0b\n"
334 +                                                 ".previous"
335 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
336 +                                                 : "m" (*p));
337 +        return ret;
338 + }
339 + #endif
340 +
341 + #ifdef __sparc__
342 + #define HAVE_TEST_AND_SET 1
343 + static inline int testandset(volatile int *p)
344 + {
345 +        int ret;
346 +
347 +        __asm__ __volatile__("ldstub    [%1], %0"
348 +                                                 : "=r" (ret)
349 +                                                 : "r" (p)
350 +                                                 : "memory");
351 +
352 +        return (ret ? 1 : 0);
353 + }
354 + #endif
355 +
356 + #ifdef __arm__
357 + #define HAVE_TEST_AND_SET 1
358 + static inline int testandset(volatile int *p)
359 + {
360 +        register unsigned int ret;
361 +        __asm__ __volatile__("swp %0, %1, [%2]"
362 +                                                 : "=r"(ret)
363 +                                                 : "0"(1), "r"(p));
364 +        
365 +        return ret;
366 + }
367 + #endif
368 +
369 + #endif /* __GNUC__ */
370 +
371 + typedef volatile int spinlock_t;
372 +
373 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
374 +
375 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
376 + // There is nothing to lock if we are not in an multithreaded environment
377 + #define HAVE_SPINLOCKS 1
378 + static inline void spin_lock(spinlock_t *lock)
379 + {
380 +        while (testandset(lock));
381 + }
382 +
383 + static inline void spin_unlock(spinlock_t *lock)
384 + {
385 +        *lock = 0;
386 + }
387 +
388 + static inline int spin_trylock(spinlock_t *lock)
389 + {
390 +        return !testandset(lock);
391 + }
392 + #else
393 + static inline void spin_lock(spinlock_t *lock)
394 + {
395 + }
396 +
397 + static inline void spin_unlock(spinlock_t *lock)
398 + {
399 + }
400 +
401 + static inline int spin_trylock(spinlock_t *lock)
402 + {
403 +        return 1;
404 + }
405 + #endif
406  
407   // Time data type for Time Manager emulation
408   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 411 | typedef struct timespec tm_time_t;
411   typedef struct timeval tm_time_t;
412   #endif
413  
414 + /* Define codes for all the float formats that we know of.
415 + * Though we only handle IEEE format.  */
416 + #define UNKNOWN_FLOAT_FORMAT 0
417 + #define IEEE_FLOAT_FORMAT 1
418 + #define VAX_FLOAT_FORMAT 2
419 + #define IBM_FLOAT_FORMAT 3
420 + #define C4X_FLOAT_FORMAT 4
421 +
422 + // High-precision timing
423 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP) && 0
424 + #define PRECISE_TIMING 1
425 + #define PRECISE_TIMING_POSIX 1
426 + #endif
427 +
428 + // Timing functions
429 + extern uint64 GetTicks_usec(void);
430 + extern void Delay_usec(uint32 usec);
431 +
432 + #ifdef HAVE_PTHREADS
433 + // Setup pthread attributes
434 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
435 + #endif
436 +
437   // Various definitions
438   typedef struct rgb_color {
439          uint8           red;
# Line 114 | Line 442 | typedef struct rgb_color {
442          uint8           alpha;
443   } rgb_color;
444  
445 + // X11 display fast locks
446 + #if defined(HAVE_PTHREADS)
447 + #define X11_LOCK_TYPE pthread_mutex_t
448 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
449 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
450 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
451 + #elif defined(HAVE_SPINLOCKS)
452 + #define X11_LOCK_TYPE spinlock_t
453 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
454 + #define XDisplayLock() spin_lock(&x_display_lock)
455 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
456 + #else
457 + #define XDisplayLock()
458 + #define XDisplayUnlock()
459 + #endif
460 + #ifdef X11_LOCK_TYPE
461 + extern X11_LOCK_TYPE x_display_lock;
462 + #endif
463 +
464   // Macro for calling MacOS routines
465 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
466 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
467 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
468 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
469 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
470 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
471 < #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)
472 < #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)
473 <
474 < extern "C" uint32 call_macos(uint32 tvect);
475 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
476 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
477 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
478 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
479 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
480 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
481 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
465 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
466 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
467 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
468 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
469 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
470 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
471 > #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)
472 > #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)
473 >
474 > #ifdef __cplusplus
475 > extern "C" {
476 > #endif
477 > extern uint32 call_macos(uint32 tvect);
478 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
479 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
480 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
481 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
482 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
483 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
484 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
485 > #ifdef __cplusplus
486 > }
487 > #endif
488  
489   #endif

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines