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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.6 by gbeauche, 2003-09-29T08:27:56Z vs.
Revision 1.50 by gbeauche, 2005-11-30T07:24:53Z

#	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	+	#define USE_ETHER_FULL_DRIVER 1
94
95		#define POWERPC_ROM 1
96
#	Line 75 | Line 102
102		#else
103		# define ROM_IS_WRITE_PROTECTED 1
104		#endif
105	+	// Configure PowerPC emulator
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 125 | Line 166 | typedef int64 intptr;
166		#error "Unsupported size of pointer"
167		#endif
168
169	<	// Helper functions to byteswap data
169	>	/**
170	>	*              Helper functions to byteswap data
171	>	**/
172	>
173	>	#if defined(__GNUC__)
174	>	#if defined(__x86_64__) || defined(__i386__)
175	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
176	>	#define opt_bswap_32 do_opt_bswap_32
177	>	static inline uint32 do_opt_bswap_32(uint32 x)
178	>	{
179	>	uint32 v;
180	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
181	>	return v;
182	>	}
183	>	#endif
184	>	#endif
185	>
186		#ifdef HAVE_BYTESWAP_H
187		#include <byteswap.h>
188		#endif
189
190	+	#ifdef  opt_bswap_16
191	+	#undef  bswap_16
192	+	#define bswap_16 opt_bswap_16
193	+	#endif
194		#ifndef bswap_16
195		#define bswap_16 generic_bswap_16
196		#endif
#	Line 139 | Line 200 | static inline uint16 generic_bswap_16(ui
200		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
201		}
202
203	+	#ifdef  opt_bswap_32
204	+	#undef  bswap_32
205	+	#define bswap_32 opt_bswap_32
206	+	#endif
207		#ifndef bswap_32
208		#define bswap_32 generic_bswap_32
209		#endif
#	Line 151 | Line 216 | static inline uint32 generic_bswap_32(ui
216		((x & 0x000000ff) << 24) );
217		}
218
219	+	#if defined(__i386__)
220	+	#define opt_bswap_64 do_opt_bswap_64
221	+	static inline uint64 do_opt_bswap_64(uint64 x)
222	+	{
223	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
224	+	}
225	+	#endif
226	+
227	+	#ifdef  opt_bswap_64
228	+	#undef  bswap_64
229	+	#define bswap_64 opt_bswap_64
230	+	#endif
231		#ifndef bswap_64
232		#define bswap_64 generic_bswap_64
233		#endif
#	Line 180 | Line 257 | static inline uint64 tswap64(uint64 x) {
257		// spin locks
258		#ifdef __GNUC__
259
260	<	#ifdef __powerpc__
260	>	#if defined(__powerpc__) || defined(__ppc__)
261		#define HAVE_TEST_AND_SET 1
262	<	static inline int testandset(int *p)
262	>	static inline int testandset(volatile int *p)
263		{
264		int ret;
265	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
266	<	"      xor. %0,%3,%0;"
267	<	"      bne 1f;"
268	<	"      stwcx. %2,0,%1;"
269	<	"      bne- 0b;"
265	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
266	>	"      xor.    %0,%3,%0\n"
267	>	"      bne             1f\n"
268	>	"      stwcx.  %2,0,%1\n"
269	>	"      bne-    0b\n"
270		"1:    "
271		: "=&r" (ret)
272		: "r" (p), "r" (1), "r" (0)
#	Line 198 | Line 275 | static inline int testandset(int *p)
275		}
276		#endif
277
278	<	#ifdef __i386__
278	>	#if defined(__i386__) || defined(__x86_64__)
279		#define HAVE_TEST_AND_SET 1
280	<	static inline int testandset(int *p)
280	>	static inline int testandset(volatile int *p)
281		{
282	<	char ret;
283	<	long int readval;
284	<
285	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
286	<	: "=q" (ret), "=m" (*p), "=a" (readval)
210	<	: "r" (1), "m" (*p), "a" (0)
282	>	long int ret;
283	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
284	>	__asm__ __volatile__("xchgl %k0, %1"
285	>	: "=r" (ret), "=m" (*p)
286	>	: "0" (1), "m" (*p)
287		: "memory");
288		return ret;
289		}
#	Line 215 | Line 291 | static inline int testandset(int *p)
291
292		#ifdef __s390__
293		#define HAVE_TEST_AND_SET 1
294	<	static inline int testandset(int *p)
294	>	static inline int testandset(volatile int *p)
295		{
296		int ret;
297
#	Line 230 | Line 306 | static inline int testandset(int *p)
306
307		#ifdef __alpha__
308		#define HAVE_TEST_AND_SET 1
309	<	static inline int testandset(int *p)
309	>	static inline int testandset(volatile int *p)
310		{
311		int ret;
312		unsigned long one;
#	Line 250 | Line 326 | static inline int testandset(int *p)
326
327		#ifdef __sparc__
328		#define HAVE_TEST_AND_SET 1
329	<	static inline int testandset(int *p)
329	>	static inline int testandset(volatile int *p)
330		{
331		int ret;
332
#	Line 265 | Line 341 | static inline int testandset(int *p)
341
342		#ifdef __arm__
343		#define HAVE_TEST_AND_SET 1
344	<	static inline int testandset(int *p)
344	>	static inline int testandset(volatile int *p)
345		{
346		register unsigned int ret;
347		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 278 | Line 354 | static inline int testandset(int *p)
354
355		#endif /* __GNUC__ */
356
357	<	#if HAVE_TEST_AND_SET
282	<	#define HAVE_SPINLOCKS 1
283	<	typedef int spinlock_t;
357	>	typedef volatile int spinlock_t;
358
359	<	const spinlock_t SPIN_LOCK_UNLOCKED = 0;
359	>	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
360
361	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
362	+	// There is nothing to lock if we are not in an multithreaded environment
363	+	#define HAVE_SPINLOCKS 1
364		static inline void spin_lock(spinlock_t *lock)
365		{
366		while (testandset(lock));
#	Line 298 | Line 375 | static inline int spin_trylock(spinlock_
375		{
376		return !testandset(lock);
377		}
378	+	#else
379	+	static inline void spin_lock(spinlock_t *lock)
380	+	{
381	+	}
382	+
383	+	static inline void spin_unlock(spinlock_t *lock)
384	+	{
385	+	}
386	+
387	+	static inline int spin_trylock(spinlock_t *lock)
388	+	{
389	+	return 1;
390	+	}
391		#endif
392
393		// Time data type for Time Manager emulation
#	Line 307 | Line 397 | typedef struct timespec tm_time_t;
397		typedef struct timeval tm_time_t;
398		#endif
399
400	+	/* Define codes for all the float formats that we know of.
401	+	* Though we only handle IEEE format.  */
402	+	#define UNKNOWN_FLOAT_FORMAT 0
403	+	#define IEEE_FLOAT_FORMAT 1
404	+	#define VAX_FLOAT_FORMAT 2
405	+	#define IBM_FLOAT_FORMAT 3
406	+	#define C4X_FLOAT_FORMAT 4
407	+
408	+	// High-precision timing
409	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
410	+	#define PRECISE_TIMING 1
411	+	#define PRECISE_TIMING_POSIX 1
412	+	#endif
413	+
414	+	// Timing functions
415	+	extern uint64 GetTicks_usec(void);
416	+	extern void Delay_usec(uint32 usec);
417	+
418	+	#ifdef HAVE_PTHREADS
419		// Setup pthread attributes
420		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
421	+	#endif
422
423		// Various definitions
424		typedef struct rgb_color {
#	Line 318 | Line 428 | typedef struct rgb_color {
428		uint8           alpha;
429		} rgb_color;
430
431	+	// X11 display fast locks
432	+	#if defined(HAVE_PTHREADS)
433	+	#define X11_LOCK_TYPE pthread_mutex_t
434	+	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
435	+	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
436	+	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
437	+	#elif defined(HAVE_SPINLOCKS)
438	+	#define X11_LOCK_TYPE spinlock_t
439	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
440	+	#define XDisplayLock() spin_lock(&x_display_lock)
441	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
442	+	#else
443	+	#define XDisplayLock()
444	+	#define XDisplayUnlock()
445	+	#endif
446	+	#ifdef X11_LOCK_TYPE
447	+	extern X11_LOCK_TYPE x_display_lock;
448	+	#endif
449	+
450		// Macro for calling MacOS routines
451	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
452	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
453	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
454	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
455	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
456	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
457	<	#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)
458	<	#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)
451	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
452	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
453	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
454	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
455	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
456	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
457	>	#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)
458	>	#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)
459
460		#ifdef __cplusplus
461		extern "C" {

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