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root/cebix/SheepShaver/src/Unix/sysdeps.h

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.24 by gbeauche, 2004-02-24T23:09:39Z vs.
Revision 1.49 by gbeauche, 2005-11-27T16:20:17Z

#	Line 1 | Line 1
1		/*
2		*  sysdeps.h - System dependent definitions for Linux
3		*
4	<	*  SheepShaver (C) 1997-2004 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
#	Line 63 | 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	+	#if DIRECT_ADDRESSING
94	+	#define USE_ETHER_FULL_DRIVER 1
95	+	#endif
96
97		#define POWERPC_ROM 1
98
99		#if EMULATED_PPC
75	–	// Handle interrupts asynchronously?
76	–	#define ASYNC_IRQ 0
100		// Mac ROM is write protected when banked memory is used
101		#if REAL_ADDRESSING || DIRECT_ADDRESSING
102		# define ROM_IS_WRITE_PROTECTED 0
#	Line 82 | Line 105
105		# define ROM_IS_WRITE_PROTECTED 1
106		#endif
107		// Configure PowerPC emulator
108	<	#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
108	>	#define PPC_REENTRANT_JIT 1
109	>	#define PPC_CHECK_INTERRUPTS 1
110		#define PPC_DECODE_CACHE 1
111		#define PPC_FLIGHT_RECORDER 1
112		#define PPC_PROFILE_COMPILE_TIME 0
113		#define PPC_PROFILE_GENERIC_CALLS 0
114		#define KPX_MAX_CPUS 1
115	+	#if ENABLE_DYNGEN
116	+	#define PPC_ENABLE_JIT 1
117	+	#endif
118	+	#if defined(__i386__)
119	+	#define DYNGEN_ASM_OPTS 1
120	+	#endif
121		#else
122		// Mac ROM is write protected
123		#define ROM_IS_WRITE_PROTECTED 1
#	Line 247 | Line 277 | static inline int testandset(volatile in
277		}
278		#endif
279
280	<	#ifdef __i386__
280	>	#if defined(__i386__) || defined(__x86_64__)
281		#define HAVE_TEST_AND_SET 1
282		static inline int testandset(volatile int *p)
283		{
284	<	int ret;
255	<	long int readval;
284	>	long int ret;
285		/* Note: the "xchg" instruction does not need a "lock" prefix */
286	<	__asm__ __volatile__("xchgl %0, %1"
287	<	: "=r" (ret), "=m" (*p), "=a" (readval)
286	>	__asm__ __volatile__("xchgl %k0, %1"
287	>	: "=r" (ret), "=m" (*p)
288		: "0" (1), "m" (*p)
289		: "memory");
290		return ret;
#	Line 327 | Line 356 | static inline int testandset(volatile in
356
357		#endif /* __GNUC__ */
358
330	–	#if HAVE_TEST_AND_SET
331	–	#define HAVE_SPINLOCKS 1
359		typedef volatile int spinlock_t;
360
361		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
362
363	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
364	+	// There is nothing to lock if we are not in an multithreaded environment
365	+	#define HAVE_SPINLOCKS 1
366		static inline void spin_lock(spinlock_t *lock)
367		{
368		while (testandset(lock));
#	Line 347 | Line 377 | static inline int spin_trylock(spinlock_
377		{
378		return !testandset(lock);
379		}
380	+	#else
381	+	static inline void spin_lock(spinlock_t *lock)
382	+	{
383	+	}
384	+
385	+	static inline void spin_unlock(spinlock_t *lock)
386	+	{
387	+	}
388	+
389	+	static inline int spin_trylock(spinlock_t *lock)
390	+	{
391	+	return 1;
392	+	}
393		#endif
394
395		// Time data type for Time Manager emulation
#	Line 356 | Line 399 | typedef struct timespec tm_time_t;
399		typedef struct timeval tm_time_t;
400		#endif
401
402	+	/* Define codes for all the float formats that we know of.
403	+	* Though we only handle IEEE format.  */
404	+	#define UNKNOWN_FLOAT_FORMAT 0
405	+	#define IEEE_FLOAT_FORMAT 1
406	+	#define VAX_FLOAT_FORMAT 2
407	+	#define IBM_FLOAT_FORMAT 3
408	+	#define C4X_FLOAT_FORMAT 4
409	+
410	+	// High-precision timing
411	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
412	+	#define PRECISE_TIMING 1
413	+	#define PRECISE_TIMING_POSIX 1
414	+	#endif
415	+
416		// Timing functions
417		extern uint64 GetTicks_usec(void);
418		extern void Delay_usec(uint32 usec);
#	Line 374 | Line 431 | typedef struct rgb_color {
431		} rgb_color;
432
433		// X11 display fast locks
434	<	#ifdef HAVE_SPINLOCKS
378	<	#define X11_LOCK_TYPE spinlock_t
379	<	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
380	<	#define XDisplayLock() spin_lock(&x_display_lock)
381	<	#define XDisplayUnlock() spin_unlock(&x_display_lock)
382	<	#elif defined(HAVE_PTHREADS)
434	>	#if defined(HAVE_PTHREADS)
435		#define X11_LOCK_TYPE pthread_mutex_t
436		#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
437		#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
438		#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
439	+	#elif defined(HAVE_SPINLOCKS)
440	+	#define X11_LOCK_TYPE spinlock_t
441	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
442	+	#define XDisplayLock() spin_lock(&x_display_lock)
443	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
444		#else
445		#define XDisplayLock()
446		#define XDisplayUnlock()
#	Line 393 | Line 450 | extern X11_LOCK_TYPE x_display_lock;
450		#endif
451
452		// Macro for calling MacOS routines
453	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
454	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
455	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
456	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
457	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
458	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
459	<	#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)
460	<	#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)
453	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
454	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
455	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
456	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
457	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
458	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
459	>	#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)
460	>	#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)
461
462		#ifdef __cplusplus
463		extern "C" {

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