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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.7 by gbeauche, 2003-09-29T15:46:07Z vs.
Revision 1.56 by gbeauche, 2007-02-17T09:01:30Z

# 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 + // 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 < // Mac and host address space are the same
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 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
71 // Handle interrupts asynchronously?
72 #define ASYNC_IRQ 0
98   // Mac ROM is write protected when banked memory is used
99   #if REAL_ADDRESSING || DIRECT_ADDRESSING
100   # define ROM_IS_WRITE_PROTECTED 0
# Line 77 | Line 102
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 1
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
# Line 127 | Line 167 | typedef int64 intptr;
167   #error "Unsupported size of pointer"
168   #endif
169  
170 < // Helper functions to byteswap data
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
# Line 141 | Line 207 | static inline uint16 generic_bswap_16(ui
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
# Line 153 | Line 223 | static inline uint32 generic_bswap_32(ui
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
# Line 182 | Line 264 | static inline uint64 tswap64(uint64 x) {
264   // spin locks
265   #ifdef __GNUC__
266  
267 < #ifdef __powerpc__
267 > #if defined(__powerpc__) || defined(__ppc__)
268   #define HAVE_TEST_AND_SET 1
269 < static inline int testandset(int *p)
269 > static inline int testandset(volatile int *p)
270   {
271          int ret;
272 <        __asm__ __volatile__("0:    lwarx %0,0,%1 ;"
273 <                                                 "      xor. %0,%3,%0;"
274 <                                                 "      bne 1f;"
275 <                                                 "      stwcx. %2,0,%1;"
276 <                                                 "      bne- 0b;"
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)
# Line 200 | Line 282 | static inline int testandset(int *p)
282   }
283   #endif
284  
285 < #ifdef __i386__
285 > #if defined(__i386__) || defined(__x86_64__)
286   #define HAVE_TEST_AND_SET 1
287 < static inline int testandset(int *p)
287 > static inline int testandset(volatile int *p)
288   {
289 <        char ret;
290 <        long int readval;
291 <        
292 <        __asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
293 <                                                 : "=q" (ret), "=m" (*p), "=a" (readval)
212 <                                                 : "r" (1), "m" (*p), "a" (0)
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   }
# Line 217 | Line 298 | static inline int testandset(int *p)
298  
299   #ifdef __s390__
300   #define HAVE_TEST_AND_SET 1
301 < static inline int testandset(int *p)
301 > static inline int testandset(volatile int *p)
302   {
303          int ret;
304  
# Line 232 | Line 313 | static inline int testandset(int *p)
313  
314   #ifdef __alpha__
315   #define HAVE_TEST_AND_SET 1
316 < static inline int testandset(int *p)
316 > static inline int testandset(volatile int *p)
317   {
318          int ret;
319          unsigned long one;
# Line 252 | Line 333 | static inline int testandset(int *p)
333  
334   #ifdef __sparc__
335   #define HAVE_TEST_AND_SET 1
336 < static inline int testandset(int *p)
336 > static inline int testandset(volatile int *p)
337   {
338          int ret;
339  
# Line 267 | Line 348 | static inline int testandset(int *p)
348  
349   #ifdef __arm__
350   #define HAVE_TEST_AND_SET 1
351 < static inline int testandset(int *p)
351 > static inline int testandset(volatile int *p)
352   {
353          register unsigned int ret;
354          __asm__ __volatile__("swp %0, %1, [%2]"
# Line 280 | Line 361 | static inline int testandset(int *p)
361  
362   #endif /* __GNUC__ */
363  
364 < #if HAVE_TEST_AND_SET
284 < #define HAVE_SPINLOCKS 1
285 < typedef int spinlock_t;
364 > typedef volatile int spinlock_t;
365  
366 < const spinlock_t SPIN_LOCK_UNLOCKED = 0;
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));
# Line 300 | Line 382 | static inline int spin_trylock(spinlock_
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
# Line 309 | 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 {
# Line 320 | 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)
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" {

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