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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.7 by gbeauche, 2003-09-29T15:46:07Z vs.
Revision 1.38 by gbeauche, 2005-02-20T18:08:50Z

# 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 + #elif defined(__CYGWIN__)
86 + #define DIRECT_ADDRESSING 1
87 + #define DIRECT_ADDRESSING_HACK 1
88 + /*
89 +  The following address translation functions were empirically
90 +  determined on a Windows XP system running Cygwin 1.5.12-1 so
91 +  that RAM size can be maximized (up to 960 MB) and avoiding
92 +  the use of a TLB. This also takes into account reduced address
93 +  space available when the Cygwin runtime is used.
94 + */
95 + #define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
96 +        ((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
97 + #define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
98 +        ((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
99 + #elif defined(NATMEM_OFFSET)
100 + #define DIRECT_ADDRESSING 1
101 + #else
102 + #define REAL_ADDRESSING 1
103 + #endif
104  
105   #define POWERPC_ROM 1
106  
107   #if EMULATED_PPC
71 – // Handle interrupts asynchronously?
72 – #define ASYNC_IRQ 0
108   // Mac ROM is write protected when banked memory is used
109   #if REAL_ADDRESSING || DIRECT_ADDRESSING
110   # define ROM_IS_WRITE_PROTECTED 0
# Line 77 | Line 112
112   #else
113   # define ROM_IS_WRITE_PROTECTED 1
114   #endif
115 + // Configure PowerPC emulator
116 + #define PPC_REENTRANT_JIT 1
117 + #define PPC_CHECK_INTERRUPTS 1
118 + #define PPC_DECODE_CACHE 1
119 + #define PPC_FLIGHT_RECORDER 1
120 + #define PPC_PROFILE_COMPILE_TIME 0
121 + #define PPC_PROFILE_GENERIC_CALLS 0
122 + #define KPX_MAX_CPUS 1
123 + #if ENABLE_DYNGEN
124 + // Don't bother with predecode cache when using JIT
125 + #define PPC_ENABLE_JIT 1
126 + #undef  PPC_DECODE_CACHE
127 + #endif
128 + #if defined(__i386__)
129 + #define DYNGEN_ASM_OPTS 1
130 + #endif
131   #else
132   // Mac ROM is write protected
133   #define ROM_IS_WRITE_PROTECTED 1
# Line 127 | Line 178 | typedef int64 intptr;
178   #error "Unsupported size of pointer"
179   #endif
180  
181 < // Helper functions to byteswap data
181 > /**
182 > *              Helper functions to byteswap data
183 > **/
184 >
185 > #if defined(__GNUC__)
186 > #if defined(__x86_64__) || defined(__i386__)
187 > // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
188 > #define opt_bswap_32 do_opt_bswap_32
189 > static inline uint32 do_opt_bswap_32(uint32 x)
190 > {
191 >  uint32 v;
192 >  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
193 >  return v;
194 > }
195 > #endif
196 > #endif
197 >
198   #ifdef HAVE_BYTESWAP_H
199   #include <byteswap.h>
200   #endif
201  
202 + #ifdef  opt_bswap_16
203 + #undef  bswap_16
204 + #define bswap_16 opt_bswap_16
205 + #endif
206   #ifndef bswap_16
207   #define bswap_16 generic_bswap_16
208   #endif
# Line 141 | Line 212 | static inline uint16 generic_bswap_16(ui
212    return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
213   }
214  
215 + #ifdef  opt_bswap_32
216 + #undef  bswap_32
217 + #define bswap_32 opt_bswap_32
218 + #endif
219   #ifndef bswap_32
220   #define bswap_32 generic_bswap_32
221   #endif
# Line 153 | Line 228 | static inline uint32 generic_bswap_32(ui
228                    ((x & 0x000000ff) << 24) );
229   }
230  
231 + #if defined(__i386__)
232 + #define opt_bswap_64 do_opt_bswap_64
233 + static inline uint64 do_opt_bswap_64(uint64 x)
234 + {
235 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
236 + }
237 + #endif
238 +
239 + #ifdef  opt_bswap_64
240 + #undef  bswap_64
241 + #define bswap_64 opt_bswap_64
242 + #endif
243   #ifndef bswap_64
244   #define bswap_64 generic_bswap_64
245   #endif
# Line 182 | Line 269 | static inline uint64 tswap64(uint64 x) {
269   // spin locks
270   #ifdef __GNUC__
271  
272 < #ifdef __powerpc__
272 > #if defined(__powerpc__) || defined(__ppc__)
273   #define HAVE_TEST_AND_SET 1
274 < static inline int testandset(int *p)
274 > static inline int testandset(volatile int *p)
275   {
276          int ret;
277 <        __asm__ __volatile__("0:    lwarx %0,0,%1 ;"
278 <                                                 "      xor. %0,%3,%0;"
279 <                                                 "      bne 1f;"
280 <                                                 "      stwcx. %2,0,%1;"
281 <                                                 "      bne- 0b;"
277 >        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
278 >                                                 "      xor.    %0,%3,%0\n"
279 >                                                 "      bne             1f\n"
280 >                                                 "      stwcx.  %2,0,%1\n"
281 >                                                 "      bne-    0b\n"
282                                                   "1:    "
283                                                   : "=&r" (ret)
284                                                   : "r" (p), "r" (1), "r" (0)
# Line 200 | Line 287 | static inline int testandset(int *p)
287   }
288   #endif
289  
290 < #ifdef __i386__
290 > /* FIXME: SheepShaver occasionnally hangs with those locks */
291 > #if 0 && (defined(__i386__) || defined(__x86_64__))
292   #define HAVE_TEST_AND_SET 1
293 < static inline int testandset(int *p)
293 > static inline int testandset(volatile int *p)
294   {
295 <        char ret;
296 <        long int readval;
297 <        
298 <        __asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
299 <                                                 : "=q" (ret), "=m" (*p), "=a" (readval)
212 <                                                 : "r" (1), "m" (*p), "a" (0)
295 >        long int ret;
296 >        /* Note: the "xchg" instruction does not need a "lock" prefix */
297 >        __asm__ __volatile__("xchgl %k0, %1"
298 >                                                 : "=r" (ret), "=m" (*p)
299 >                                                 : "0" (1), "m" (*p)
300                                                   : "memory");
301          return ret;
302   }
# Line 217 | Line 304 | static inline int testandset(int *p)
304  
305   #ifdef __s390__
306   #define HAVE_TEST_AND_SET 1
307 < static inline int testandset(int *p)
307 > static inline int testandset(volatile int *p)
308   {
309          int ret;
310  
# Line 232 | Line 319 | static inline int testandset(int *p)
319  
320   #ifdef __alpha__
321   #define HAVE_TEST_AND_SET 1
322 < static inline int testandset(int *p)
322 > static inline int testandset(volatile int *p)
323   {
324          int ret;
325          unsigned long one;
# Line 252 | Line 339 | static inline int testandset(int *p)
339  
340   #ifdef __sparc__
341   #define HAVE_TEST_AND_SET 1
342 < static inline int testandset(int *p)
342 > static inline int testandset(volatile int *p)
343   {
344          int ret;
345  
# Line 267 | Line 354 | static inline int testandset(int *p)
354  
355   #ifdef __arm__
356   #define HAVE_TEST_AND_SET 1
357 < static inline int testandset(int *p)
357 > static inline int testandset(volatile int *p)
358   {
359          register unsigned int ret;
360          __asm__ __volatile__("swp %0, %1, [%2]"
# Line 280 | Line 367 | static inline int testandset(int *p)
367  
368   #endif /* __GNUC__ */
369  
370 < #if HAVE_TEST_AND_SET
284 < #define HAVE_SPINLOCKS 1
285 < typedef int spinlock_t;
370 > typedef volatile int spinlock_t;
371  
372 < const spinlock_t SPIN_LOCK_UNLOCKED = 0;
372 > static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
373  
374 + #if HAVE_TEST_AND_SET
375 + #define HAVE_SPINLOCKS 1
376   static inline void spin_lock(spinlock_t *lock)
377   {
378          while (testandset(lock));
# Line 300 | Line 387 | static inline int spin_trylock(spinlock_
387   {
388          return !testandset(lock);
389   }
390 + #else
391 + static inline void spin_lock(spinlock_t *lock)
392 + {
393 + }
394 +
395 + static inline void spin_unlock(spinlock_t *lock)
396 + {
397 + }
398 +
399 + static inline int spin_trylock(spinlock_t *lock)
400 + {
401 +        return 1;
402 + }
403   #endif
404  
405   // Time data type for Time Manager emulation
# Line 309 | Line 409 | typedef struct timespec tm_time_t;
409   typedef struct timeval tm_time_t;
410   #endif
411  
412 + // Timing functions
413 + extern uint64 GetTicks_usec(void);
414 + extern void Delay_usec(uint32 usec);
415 +
416 + #if defined(HAVE_PTHREADS) || ((defined(__linux__) || defined(__NetBSD__)) && defined(__powerpc__))
417   // Setup pthread attributes
418   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
419 + #endif
420  
421   // Various definitions
422   typedef struct rgb_color {
# Line 320 | Line 426 | typedef struct rgb_color {
426          uint8           alpha;
427   } rgb_color;
428  
429 + // X11 display fast locks
430 + #ifdef HAVE_SPINLOCKS
431 + #define X11_LOCK_TYPE spinlock_t
432 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
433 + #define XDisplayLock() spin_lock(&x_display_lock)
434 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
435 + #elif defined(HAVE_PTHREADS)
436 + #define X11_LOCK_TYPE pthread_mutex_t
437 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
438 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
439 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
440 + #else
441 + #define XDisplayLock()
442 + #define XDisplayUnlock()
443 + #endif
444 + #ifdef X11_LOCK_TYPE
445 + extern X11_LOCK_TYPE x_display_lock;
446 + #endif
447 +
448   // Macro for calling MacOS routines
449 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
450 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
451 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
452 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
453 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
454 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
455 < #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)
456 < #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)
449 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
450 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
451 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
452 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
453 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
454 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
455 > #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)
456 > #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)
457  
458   #ifdef __cplusplus
459   extern "C" {

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