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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.23 by gbeauche, 2004-01-26T13:52:31Z vs.
Revision 1.47 by gbeauche, 2005-07-03T13:39:06Z

#	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
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		#define POWERPC_ROM 1
93
94		#if EMULATED_PPC
71	–	// Handle interrupts asynchronously?
72	–	#define ASYNC_IRQ 0
95		// Mac ROM is write protected when banked memory is used
96		#if REAL_ADDRESSING || DIRECT_ADDRESSING
97		# define ROM_IS_WRITE_PROTECTED 0
#	Line 78 | Line 100
100		# define ROM_IS_WRITE_PROTECTED 1
101		#endif
102		// Configure PowerPC emulator
103	<	#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
103	>	#define PPC_REENTRANT_JIT 1
104	>	#define PPC_CHECK_INTERRUPTS 1
105		#define PPC_DECODE_CACHE 1
106		#define PPC_FLIGHT_RECORDER 1
107		#define PPC_PROFILE_COMPILE_TIME 0
108		#define PPC_PROFILE_GENERIC_CALLS 0
109		#define KPX_MAX_CPUS 1
110	+	#if ENABLE_DYNGEN
111	+	// Don't bother with predecode cache when using JIT
112	+	#define PPC_ENABLE_JIT 1
113	+	#undef  PPC_DECODE_CACHE
114	+	#endif
115	+	#if defined(__i386__)
116	+	#define DYNGEN_ASM_OPTS 1
117	+	#endif
118		#else
119		// Mac ROM is write protected
120		#define ROM_IS_WRITE_PROTECTED 1
#	Line 243 | Line 274 | static inline int testandset(volatile in
274		}
275		#endif
276
277	<	#ifdef __i386__
277	>	#if defined(__i386__) || defined(__x86_64__)
278		#define HAVE_TEST_AND_SET 1
279		static inline int testandset(volatile int *p)
280		{
281	<	int ret;
251	<	long int readval;
281	>	long int ret;
282		/* Note: the "xchg" instruction does not need a "lock" prefix */
283	<	__asm__ __volatile__("xchgl %0, %1"
284	<	: "=r" (ret), "=m" (*p), "=a" (readval)
283	>	__asm__ __volatile__("xchgl %k0, %1"
284	>	: "=r" (ret), "=m" (*p)
285		: "0" (1), "m" (*p)
286		: "memory");
287		return ret;
#	Line 323 | Line 353 | static inline int testandset(volatile in
353
354		#endif /* __GNUC__ */
355
326	–	#if HAVE_TEST_AND_SET
327	–	#define HAVE_SPINLOCKS 1
356		typedef volatile int spinlock_t;
357
358		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
359
360	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
361	+	// There is nothing to lock if we are not in an multithreaded environment
362	+	#define HAVE_SPINLOCKS 1
363		static inline void spin_lock(spinlock_t *lock)
364		{
365		while (testandset(lock));
#	Line 343 | Line 374 | static inline int spin_trylock(spinlock_
374		{
375		return !testandset(lock);
376		}
377	+	#else
378	+	static inline void spin_lock(spinlock_t *lock)
379	+	{
380	+	}
381	+
382	+	static inline void spin_unlock(spinlock_t *lock)
383	+	{
384	+	}
385	+
386	+	static inline int spin_trylock(spinlock_t *lock)
387	+	{
388	+	return 1;
389	+	}
390		#endif
391
392		// Time data type for Time Manager emulation
#	Line 352 | Line 396 | typedef struct timespec tm_time_t;
396		typedef struct timeval tm_time_t;
397		#endif
398
399	+	/* Define codes for all the float formats that we know of.
400	+	* Though we only handle IEEE format.  */
401	+	#define UNKNOWN_FLOAT_FORMAT 0
402	+	#define IEEE_FLOAT_FORMAT 1
403	+	#define VAX_FLOAT_FORMAT 2
404	+	#define IBM_FLOAT_FORMAT 3
405	+	#define C4X_FLOAT_FORMAT 4
406	+
407	+	// High-precision timing
408	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
409	+	#define PRECISE_TIMING 1
410	+	#define PRECISE_TIMING_POSIX 1
411	+	#endif
412	+
413		// Timing functions
414		extern uint64 GetTicks_usec(void);
415		extern void Delay_usec(uint32 usec);
416
417	+	#ifdef HAVE_PTHREADS
418		// Setup pthread attributes
419		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
420	+	#endif
421
422		// Various definitions
423		typedef struct rgb_color {
#	Line 368 | Line 428 | typedef struct rgb_color {
428		} rgb_color;
429
430		// X11 display fast locks
431	<	#ifdef HAVE_SPINLOCKS
372	<	#define X11_LOCK_TYPE spinlock_t
373	<	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
374	<	#define XDisplayLock() spin_lock(&x_display_lock)
375	<	#define XDisplayUnlock() spin_unlock(&x_display_lock)
376	<	#elif defined(HAVE_PTHREADS)
431	>	#if defined(HAVE_PTHREADS)
432		#define X11_LOCK_TYPE pthread_mutex_t
433		#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
434		#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
435		#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
436	+	#elif defined(HAVE_SPINLOCKS)
437	+	#define X11_LOCK_TYPE spinlock_t
438	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
439	+	#define XDisplayLock() spin_lock(&x_display_lock)
440	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
441		#else
442		#define XDisplayLock()
443		#define XDisplayUnlock()
#	Line 387 | Line 447 | extern X11_LOCK_TYPE x_display_lock;
447		#endif
448
449		// Macro for calling MacOS routines
450	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
451	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
452	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
453	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
454	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
455	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
456	<	#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)
457	<	#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)
450	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
451	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
452	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
453	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
454	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
455	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
456	>	#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)
457	>	#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)
458
459		#ifdef __cplusplus
460		extern "C" {

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