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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.25 by gbeauche, 2004-02-25T22:02:59Z vs.
Revision 1.51 by gbeauche, 2006-04-01T21:41:18Z

#	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	+	#define USE_ETHER_FULL_DRIVER 1
94
95		#define POWERPC_ROM 1
96
97		#if EMULATED_PPC
75	–	// Handle interrupts asynchronously?
76	–	#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 82 | Line 103
103		# define ROM_IS_WRITE_PROTECTED 1
104		#endif
105		// Configure PowerPC emulator
106	<	#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
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 0
112		#define KPX_MAX_CPUS 1
113	+	#if ENABLE_DYNGEN
114	+	#define PPC_ENABLE_JIT 1
115	+	#endif
116	+	#if defined(__i386__)
117	+	#define DYNGEN_ASM_OPTS 1
118	+	#endif
119		#else
120		// Mac ROM is write protected
121		#define ROM_IS_WRITE_PROTECTED 1
#	Line 139 | Line 167 | typedef int64 intptr;
167		#endif
168
169		/**
170	+	*              Helper macros to annotate likely branch directions
171	+	**/
172	+
173	+	#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
174	+	#define likely(x)               __builtin_expect((x),1)
175	+	#define unlikely(x)             __builtin_expect((x),0)
176	+	#endif
177	+	#ifndef likely
178	+	#define likely(x)               (x)
179	+	#endif
180	+	#ifndef unlikely
181	+	#define unlikely(x)             (x)
182	+	#endif
183	+
184	+	/**
185		*              Helper functions to byteswap data
186		**/
187
#	Line 247 | Line 290 | static inline int testandset(volatile in
290		}
291		#endif
292
293	<	#ifdef __i386__
293	>	#if defined(__i386__) || defined(__x86_64__)
294		#define HAVE_TEST_AND_SET 1
295		static inline int testandset(volatile int *p)
296		{
297	<	int ret;
255	<	long int readval;
297	>	long int ret;
298		/* Note: the "xchg" instruction does not need a "lock" prefix */
299	<	__asm__ __volatile__("xchgl %0, %1"
300	<	: "=r" (ret), "=m" (*p), "=a" (readval)
299	>	__asm__ __volatile__("xchgl %k0, %1"
300	>	: "=r" (ret), "=m" (*p)
301		: "0" (1), "m" (*p)
302		: "memory");
303		return ret;
#	Line 327 | Line 369 | static inline int testandset(volatile in
369
370		#endif /* __GNUC__ */
371
330	–	#if HAVE_TEST_AND_SET
331	–	#define HAVE_SPINLOCKS 1
372		typedef volatile int spinlock_t;
373
374		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
375
376	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
377	+	// There is nothing to lock if we are not in an multithreaded environment
378	+	#define HAVE_SPINLOCKS 1
379		static inline void spin_lock(spinlock_t *lock)
380		{
381		while (testandset(lock));
#	Line 347 | Line 390 | static inline int spin_trylock(spinlock_
390		{
391		return !testandset(lock);
392		}
393	+	#else
394	+	static inline void spin_lock(spinlock_t *lock)
395	+	{
396	+	}
397	+
398	+	static inline void spin_unlock(spinlock_t *lock)
399	+	{
400	+	}
401	+
402	+	static inline int spin_trylock(spinlock_t *lock)
403	+	{
404	+	return 1;
405	+	}
406		#endif
407
408		// Time data type for Time Manager emulation
#	Line 356 | Line 412 | typedef struct timespec tm_time_t;
412		typedef struct timeval tm_time_t;
413		#endif
414
415	+	/* Define codes for all the float formats that we know of.
416	+	* Though we only handle IEEE format.  */
417	+	#define UNKNOWN_FLOAT_FORMAT 0
418	+	#define IEEE_FLOAT_FORMAT 1
419	+	#define VAX_FLOAT_FORMAT 2
420	+	#define IBM_FLOAT_FORMAT 3
421	+	#define C4X_FLOAT_FORMAT 4
422	+
423	+	// High-precision timing
424	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
425	+	#define PRECISE_TIMING 1
426	+	#define PRECISE_TIMING_POSIX 1
427	+	#endif
428	+
429		// Timing functions
430		extern uint64 GetTicks_usec(void);
431		extern void Delay_usec(uint32 usec);
432
433	<	#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
433	>	#ifdef HAVE_PTHREADS
434		// Setup pthread attributes
435		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
436		#endif
#	Line 374 | Line 444 | typedef struct rgb_color {
444		} rgb_color;
445
446		// X11 display fast locks
447	<	#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)
447	>	#if defined(HAVE_PTHREADS)
448		#define X11_LOCK_TYPE pthread_mutex_t
449		#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
450		#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
451		#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
452	+	#elif defined(HAVE_SPINLOCKS)
453	+	#define X11_LOCK_TYPE spinlock_t
454	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
455	+	#define XDisplayLock() spin_lock(&x_display_lock)
456	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
457		#else
458		#define XDisplayLock()
459		#define XDisplayUnlock()
#	Line 393 | Line 463 | extern X11_LOCK_TYPE x_display_lock;
463		#endif
464
465		// Macro for calling MacOS routines
466	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
467	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
468	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
469	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
470	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
471	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
472	<	#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)
473	<	#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)
466	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
467	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
468	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
469	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
470	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
471	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
472	>	#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)
473	>	#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)
474
475		#ifdef __cplusplus
476		extern "C" {

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