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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.13 by gbeauche, 2003-10-26T14:16:37Z vs.
Revision 1.59 by asvitkine, 2009-08-17T20:44:30Z

# 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) 1997-2008 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 + #ifdef __MACH__
68 + #include <mach/mach_types.h>
69 + #endif
70 +
71 + // Fix offsetof() on FreeBSD and GCC >= 3.4
72 + #if defined(__FreeBSD__) && defined(__cplusplus)
73 + #undef offsetof
74 + /* The cast to "char &" below avoids problems with user-defined
75 +   "operator &", which can appear in a POD type.  */
76 + #define offsetof(TYPE, MEMBER)                          \
77 +  (__offsetof__ (reinterpret_cast <size_t>              \
78 +                 (&reinterpret_cast <char &>            \
79 +                  (static_cast<TYPE *> (0)->MEMBER))))
80 + #endif
81 +
82   // Define for external components
83   #define SHEEPSHAVER 1
84  
85 < // Mac and host address space are the same
85 > // Always use Real Addressing mode on native architectures
86 > // Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
87 > #if !defined(EMULATED_PPC)
88   #define REAL_ADDRESSING 1
89 + #include "ppc_asm.tmpl"
90 + #elif defined(NATMEM_OFFSET)
91 + #define DIRECT_ADDRESSING 1
92 + #else
93 + #define REAL_ADDRESSING 1
94 + #endif
95 +
96 + // Always use the complete non-stubs Ethernet driver
97 + #define USE_ETHER_FULL_DRIVER 1
98  
99   #define POWERPC_ROM 1
100  
101   #if EMULATED_PPC
71 // Handle interrupts asynchronously?
72 #define ASYNC_IRQ 0
102   // Mac ROM is write protected when banked memory is used
103   #if REAL_ADDRESSING || DIRECT_ADDRESSING
104   # define ROM_IS_WRITE_PROTECTED 0
# Line 78 | Line 107
107   # define ROM_IS_WRITE_PROTECTED 1
108   #endif
109   // Configure PowerPC emulator
110 < #define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
111 < #define PPC_NO_LAZY_PC_UPDATE 1
112 < //#define PPC_NO_DECODE_CACHE 1
110 > #define PPC_REENTRANT_JIT 1
111 > #define PPC_CHECK_INTERRUPTS 1
112 > #define PPC_DECODE_CACHE 1
113   #define PPC_FLIGHT_RECORDER 1
114 + #define PPC_PROFILE_COMPILE_TIME 0
115 + #define PPC_PROFILE_GENERIC_CALLS 0
116 + #define PPC_PROFILE_REGS_USE 0
117 + #define KPX_MAX_CPUS 1
118 + #if ENABLE_DYNGEN
119 + #define PPC_ENABLE_JIT 1
120 + #endif
121 + #if defined(__i386__) || defined(__x86_64__)
122 + #define DYNGEN_ASM_OPTS 1
123 + #endif
124   #else
125   // Mac ROM is write protected
126   #define ROM_IS_WRITE_PROTECTED 1
# Line 132 | Line 171 | typedef int64 intptr;
171   #error "Unsupported size of pointer"
172   #endif
173  
174 < // Helper functions to byteswap data
174 > // Define if the host processor supports fast unaligned load/stores
175 > #if defined __i386__ || defined __x86_64__
176 > #define UNALIGNED_PROFITABLE 1
177 > #endif
178 >
179 >
180 > /**
181 > *              Helper functions to byteswap data
182 > **/
183 >
184 > #if defined(__GNUC__)
185 > #if defined(__x86_64__) || defined(__i386__)
186 > // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
187 > #define opt_bswap_32 do_opt_bswap_32
188 > static inline uint32 do_opt_bswap_32(uint32 x)
189 > {
190 >  uint32 v;
191 >  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
192 >  return v;
193 > }
194 > #endif
195 > #endif
196 >
197   #ifdef HAVE_BYTESWAP_H
198   #include <byteswap.h>
199   #endif
200  
201 + #ifdef  opt_bswap_16
202 + #undef  bswap_16
203 + #define bswap_16 opt_bswap_16
204 + #endif
205   #ifndef bswap_16
206   #define bswap_16 generic_bswap_16
207   #endif
# Line 146 | Line 211 | static inline uint16 generic_bswap_16(ui
211    return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
212   }
213  
214 + #ifdef  opt_bswap_32
215 + #undef  bswap_32
216 + #define bswap_32 opt_bswap_32
217 + #endif
218   #ifndef bswap_32
219   #define bswap_32 generic_bswap_32
220   #endif
# Line 158 | Line 227 | static inline uint32 generic_bswap_32(ui
227                    ((x & 0x000000ff) << 24) );
228   }
229  
230 + #if defined(__i386__)
231 + #define opt_bswap_64 do_opt_bswap_64
232 + static inline uint64 do_opt_bswap_64(uint64 x)
233 + {
234 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
235 + }
236 + #endif
237 +
238 + #ifdef  opt_bswap_64
239 + #undef  bswap_64
240 + #define bswap_64 opt_bswap_64
241 + #endif
242   #ifndef bswap_64
243   #define bswap_64 generic_bswap_64
244   #endif
# Line 187 | Line 268 | static inline uint64 tswap64(uint64 x) {
268   // spin locks
269   #ifdef __GNUC__
270  
271 < #ifdef __powerpc__
271 > #if defined(__powerpc__) || defined(__ppc__)
272   #define HAVE_TEST_AND_SET 1
273 < static inline int testandset(int *p)
273 > static inline int testandset(volatile int *p)
274   {
275          int ret;
276 <        __asm__ __volatile__("0:    lwarx %0,0,%1 ;"
277 <                                                 "      xor. %0,%3,%0;"
278 <                                                 "      bne 1f;"
279 <                                                 "      stwcx. %2,0,%1;"
280 <                                                 "      bne- 0b;"
276 >        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
277 >                                                 "      xor.    %0,%3,%0\n"
278 >                                                 "      bne             1f\n"
279 >                                                 "      stwcx.  %2,0,%1\n"
280 >                                                 "      bne-    0b\n"
281                                                   "1:    "
282                                                   : "=&r" (ret)
283                                                   : "r" (p), "r" (1), "r" (0)
# Line 205 | Line 286 | static inline int testandset(int *p)
286   }
287   #endif
288  
289 < #ifdef __i386__
289 > #if defined(__i386__) || defined(__x86_64__)
290   #define HAVE_TEST_AND_SET 1
291 < static inline int testandset(int *p)
291 > static inline int testandset(volatile int *p)
292   {
293 <        char ret;
294 <        long int readval;
295 <        
296 <        __asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
297 <                                                 : "=q" (ret), "=m" (*p), "=a" (readval)
217 <                                                 : "r" (1), "m" (*p), "a" (0)
293 >        long int ret;
294 >        /* Note: the "xchg" instruction does not need a "lock" prefix */
295 >        __asm__ __volatile__("xchgl %k0, %1"
296 >                                                 : "=r" (ret), "=m" (*p)
297 >                                                 : "0" (1), "m" (*p)
298                                                   : "memory");
299          return ret;
300   }
# Line 222 | Line 302 | static inline int testandset(int *p)
302  
303   #ifdef __s390__
304   #define HAVE_TEST_AND_SET 1
305 < static inline int testandset(int *p)
305 > static inline int testandset(volatile int *p)
306   {
307          int ret;
308  
# Line 237 | Line 317 | static inline int testandset(int *p)
317  
318   #ifdef __alpha__
319   #define HAVE_TEST_AND_SET 1
320 < static inline int testandset(int *p)
320 > static inline int testandset(volatile int *p)
321   {
322          int ret;
323          unsigned long one;
# Line 257 | Line 337 | static inline int testandset(int *p)
337  
338   #ifdef __sparc__
339   #define HAVE_TEST_AND_SET 1
340 < static inline int testandset(int *p)
340 > static inline int testandset(volatile int *p)
341   {
342          int ret;
343  
# Line 272 | Line 352 | static inline int testandset(int *p)
352  
353   #ifdef __arm__
354   #define HAVE_TEST_AND_SET 1
355 < static inline int testandset(int *p)
355 > static inline int testandset(volatile int *p)
356   {
357          register unsigned int ret;
358          __asm__ __volatile__("swp %0, %1, [%2]"
# Line 285 | Line 365 | static inline int testandset(int *p)
365  
366   #endif /* __GNUC__ */
367  
368 < #if HAVE_TEST_AND_SET
289 < #define HAVE_SPINLOCKS 1
290 < typedef int spinlock_t;
368 > typedef volatile int spinlock_t;
369  
370   static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
371  
372 + #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
373 + // There is nothing to lock if we are not in an multithreaded environment
374 + #define HAVE_SPINLOCKS 1
375   static inline void spin_lock(spinlock_t *lock)
376   {
377          while (testandset(lock));
# Line 305 | Line 386 | static inline int spin_trylock(spinlock_
386   {
387          return !testandset(lock);
388   }
389 + #else
390 + static inline void spin_lock(spinlock_t *lock)
391 + {
392 + }
393 +
394 + static inline void spin_unlock(spinlock_t *lock)
395 + {
396 + }
397 +
398 + static inline int spin_trylock(spinlock_t *lock)
399 + {
400 +        return 1;
401 + }
402   #endif
403  
404   // Time data type for Time Manager emulation
405   #ifdef HAVE_CLOCK_GETTIME
406   typedef struct timespec tm_time_t;
407 + #elif defined(__MACH__)
408 + typedef mach_timespec_t tm_time_t;
409   #else
410   typedef struct timeval tm_time_t;
411   #endif
412  
413 + /* Define codes for all the float formats that we know of.
414 + * Though we only handle IEEE format.  */
415 + #define UNKNOWN_FLOAT_FORMAT 0
416 + #define IEEE_FLOAT_FORMAT 1
417 + #define VAX_FLOAT_FORMAT 2
418 + #define IBM_FLOAT_FORMAT 3
419 + #define C4X_FLOAT_FORMAT 4
420 +
421 + // High-precision timing
422 + #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
423 + #define PRECISE_TIMING 1
424 + #define PRECISE_TIMING_POSIX 1
425 + #elif defined(HAVE_PTHREADS) && defined(__MACH__)
426 + #define PRECISE_TIMING 1
427 + #define PRECISE_TIMING_MACH 1
428 + #endif
429 +
430 + // Timing functions
431 + extern uint64 GetTicks_usec(void);
432 + extern void Delay_usec(uint32 usec);
433 +
434 + #ifdef HAVE_PTHREADS
435   // Setup pthread attributes
436   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
437 + #endif
438  
439   // Various definitions
440   typedef struct rgb_color {
# Line 325 | Line 444 | typedef struct rgb_color {
444          uint8           alpha;
445   } rgb_color;
446  
447 + // X11 display fast locks
448 + #if defined(HAVE_PTHREADS)
449 + #define X11_LOCK_TYPE pthread_mutex_t
450 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
451 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
452 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
453 + #elif defined(HAVE_SPINLOCKS)
454 + #define X11_LOCK_TYPE spinlock_t
455 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
456 + #define XDisplayLock() spin_lock(&x_display_lock)
457 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
458 + #else
459 + #define XDisplayLock()
460 + #define XDisplayUnlock()
461 + #endif
462 + #ifdef X11_LOCK_TYPE
463 + extern X11_LOCK_TYPE x_display_lock;
464 + #endif
465 +
466   // Macro for calling MacOS routines
467 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
468 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
469 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
470 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
471 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
472 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
473 < #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)
474 < #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)
467 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
468 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
469 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
470 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
471 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
472 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
473 > #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)
474 > #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)
475  
476   #ifdef __cplusplus
477   extern "C" {

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