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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.8 by gbeauche, 2003-09-29T22:41:50Z vs.
Revision 1.48 by gbeauche, 2005-07-03T22:02:01Z

#	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	>	#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
71	–	// Handle interrupts asynchronously?
72	–	#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 77 | Line 104
104		#else
105		# define ROM_IS_WRITE_PROTECTED 1
106		#endif
107	+	// Configure PowerPC emulator
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	+	// Don't bother with predecode cache when using JIT
117	+	#define PPC_ENABLE_JIT 1
118	+	#undef  PPC_DECODE_CACHE
119	+	#endif
120	+	#if defined(__i386__)
121	+	#define DYNGEN_ASM_OPTS 1
122	+	#endif
123		#else
124		// Mac ROM is write protected
125		#define ROM_IS_WRITE_PROTECTED 1
#	Line 127 | Line 170 | typedef int64 intptr;
170		#error "Unsupported size of pointer"
171		#endif
172
173	<	// Helper functions to byteswap data
173	>	/**
174	>	*              Helper functions to byteswap data
175	>	**/
176	>
177	>	#if defined(__GNUC__)
178	>	#if defined(__x86_64__) || defined(__i386__)
179	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
180	>	#define opt_bswap_32 do_opt_bswap_32
181	>	static inline uint32 do_opt_bswap_32(uint32 x)
182	>	{
183	>	uint32 v;
184	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
185	>	return v;
186	>	}
187	>	#endif
188	>	#endif
189	>
190		#ifdef HAVE_BYTESWAP_H
191		#include <byteswap.h>
192		#endif
193
194	+	#ifdef  opt_bswap_16
195	+	#undef  bswap_16
196	+	#define bswap_16 opt_bswap_16
197	+	#endif
198		#ifndef bswap_16
199		#define bswap_16 generic_bswap_16
200		#endif
#	Line 141 | Line 204 | static inline uint16 generic_bswap_16(ui
204		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
205		}
206
207	+	#ifdef  opt_bswap_32
208	+	#undef  bswap_32
209	+	#define bswap_32 opt_bswap_32
210	+	#endif
211		#ifndef bswap_32
212		#define bswap_32 generic_bswap_32
213		#endif
#	Line 153 | Line 220 | static inline uint32 generic_bswap_32(ui
220		((x & 0x000000ff) << 24) );
221		}
222
223	+	#if defined(__i386__)
224	+	#define opt_bswap_64 do_opt_bswap_64
225	+	static inline uint64 do_opt_bswap_64(uint64 x)
226	+	{
227	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
228	+	}
229	+	#endif
230	+
231	+	#ifdef  opt_bswap_64
232	+	#undef  bswap_64
233	+	#define bswap_64 opt_bswap_64
234	+	#endif
235		#ifndef bswap_64
236		#define bswap_64 generic_bswap_64
237		#endif
#	Line 182 | Line 261 | static inline uint64 tswap64(uint64 x) {
261		// spin locks
262		#ifdef __GNUC__
263
264	<	#ifdef __powerpc__
264	>	#if defined(__powerpc__) || defined(__ppc__)
265		#define HAVE_TEST_AND_SET 1
266	<	static inline int testandset(int *p)
266	>	static inline int testandset(volatile int *p)
267		{
268		int ret;
269	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
270	<	"      xor. %0,%3,%0;"
271	<	"      bne 1f;"
272	<	"      stwcx. %2,0,%1;"
273	<	"      bne- 0b;"
269	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
270	>	"      xor.    %0,%3,%0\n"
271	>	"      bne             1f\n"
272	>	"      stwcx.  %2,0,%1\n"
273	>	"      bne-    0b\n"
274		"1:    "
275		: "=&r" (ret)
276		: "r" (p), "r" (1), "r" (0)
#	Line 200 | Line 279 | static inline int testandset(int *p)
279		}
280		#endif
281
282	<	#ifdef __i386__
282	>	#if defined(__i386__) || defined(__x86_64__)
283		#define HAVE_TEST_AND_SET 1
284	<	static inline int testandset(int *p)
284	>	static inline int testandset(volatile int *p)
285		{
286	<	char ret;
287	<	long int readval;
288	<
289	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
290	<	: "=q" (ret), "=m" (*p), "=a" (readval)
212	<	: "r" (1), "m" (*p), "a" (0)
286	>	long int ret;
287	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
288	>	__asm__ __volatile__("xchgl %k0, %1"
289	>	: "=r" (ret), "=m" (*p)
290	>	: "0" (1), "m" (*p)
291		: "memory");
292		return ret;
293		}
#	Line 217 | Line 295 | static inline int testandset(int *p)
295
296		#ifdef __s390__
297		#define HAVE_TEST_AND_SET 1
298	<	static inline int testandset(int *p)
298	>	static inline int testandset(volatile int *p)
299		{
300		int ret;
301
#	Line 232 | Line 310 | static inline int testandset(int *p)
310
311		#ifdef __alpha__
312		#define HAVE_TEST_AND_SET 1
313	<	static inline int testandset(int *p)
313	>	static inline int testandset(volatile int *p)
314		{
315		int ret;
316		unsigned long one;
#	Line 252 | Line 330 | static inline int testandset(int *p)
330
331		#ifdef __sparc__
332		#define HAVE_TEST_AND_SET 1
333	<	static inline int testandset(int *p)
333	>	static inline int testandset(volatile int *p)
334		{
335		int ret;
336
#	Line 267 | Line 345 | static inline int testandset(int *p)
345
346		#ifdef __arm__
347		#define HAVE_TEST_AND_SET 1
348	<	static inline int testandset(int *p)
348	>	static inline int testandset(volatile int *p)
349		{
350		register unsigned int ret;
351		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 280 | Line 358 | static inline int testandset(int *p)
358
359		#endif /* __GNUC__ */
360
361	<	#if HAVE_TEST_AND_SET
284	<	#define HAVE_SPINLOCKS 1
285	<	typedef int spinlock_t;
361	>	typedef volatile int spinlock_t;
362
363		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
364
365	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
366	+	// There is nothing to lock if we are not in an multithreaded environment
367	+	#define HAVE_SPINLOCKS 1
368		static inline void spin_lock(spinlock_t *lock)
369		{
370		while (testandset(lock));
#	Line 300 | Line 379 | static inline int spin_trylock(spinlock_
379		{
380		return !testandset(lock);
381		}
382	+	#else
383	+	static inline void spin_lock(spinlock_t *lock)
384	+	{
385	+	}
386	+
387	+	static inline void spin_unlock(spinlock_t *lock)
388	+	{
389	+	}
390	+
391	+	static inline int spin_trylock(spinlock_t *lock)
392	+	{
393	+	return 1;
394	+	}
395		#endif
396
397		// Time data type for Time Manager emulation
#	Line 309 | Line 401 | typedef struct timespec tm_time_t;
401		typedef struct timeval tm_time_t;
402		#endif
403
404	+	/* Define codes for all the float formats that we know of.
405	+	* Though we only handle IEEE format.  */
406	+	#define UNKNOWN_FLOAT_FORMAT 0
407	+	#define IEEE_FLOAT_FORMAT 1
408	+	#define VAX_FLOAT_FORMAT 2
409	+	#define IBM_FLOAT_FORMAT 3
410	+	#define C4X_FLOAT_FORMAT 4
411	+
412	+	// High-precision timing
413	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
414	+	#define PRECISE_TIMING 1
415	+	#define PRECISE_TIMING_POSIX 1
416	+	#endif
417	+
418	+	// Timing functions
419	+	extern uint64 GetTicks_usec(void);
420	+	extern void Delay_usec(uint32 usec);
421	+
422	+	#ifdef HAVE_PTHREADS
423		// Setup pthread attributes
424		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
425	+	#endif
426
427		// Various definitions
428		typedef struct rgb_color {
#	Line 320 | Line 432 | typedef struct rgb_color {
432		uint8           alpha;
433		} rgb_color;
434
435	+	// X11 display fast locks
436	+	#if defined(HAVE_PTHREADS)
437	+	#define X11_LOCK_TYPE pthread_mutex_t
438	+	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
439	+	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
440	+	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
441	+	#elif defined(HAVE_SPINLOCKS)
442	+	#define X11_LOCK_TYPE spinlock_t
443	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
444	+	#define XDisplayLock() spin_lock(&x_display_lock)
445	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
446	+	#else
447	+	#define XDisplayLock()
448	+	#define XDisplayUnlock()
449	+	#endif
450	+	#ifdef X11_LOCK_TYPE
451	+	extern X11_LOCK_TYPE x_display_lock;
452	+	#endif
453	+
454		// Macro for calling MacOS routines
455	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
456	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
457	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
458	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
459	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
460	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
461	<	#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)
462	<	#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)
455	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
456	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
457	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
458	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
459	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
460	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
461	>	#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)
462	>	#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)
463
464		#ifdef __cplusplus
465		extern "C" {

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