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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.7 by gbeauche, 2003-09-29T15:46:07Z vs.
Revision 1.59 by asvitkine, 2009-08-17T20:44:30Z

#	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) 1997-2008 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	+	#ifdef __MACH__
68	+	#include <mach/mach_types.h>
69	+	#endif
70	+
71	+	// Fix offsetof() on FreeBSD and GCC >= 3.4
72	+	#if defined(__FreeBSD__) && defined(__cplusplus)
73	+	#undef offsetof
74	+	/* The cast to "char &" below avoids problems with user-defined
75	+	"operator &", which can appear in a POD type.  */
76	+	#define offsetof(TYPE, MEMBER)                          \
77	+	(__offsetof__ (reinterpret_cast <size_t>              \
78	+	(&reinterpret_cast <char &>            \
79	+	(static_cast<TYPE *> (0)->MEMBER))))
80	+	#endif
81	+
82		// Define for external components
83		#define SHEEPSHAVER 1
84
85	<	// Mac and host address space are the same
85	>	// Always use Real Addressing mode on native architectures
86	>	// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
87	>	#if !defined(EMULATED_PPC)
88		#define REAL_ADDRESSING 1
89	+	#include "ppc_asm.tmpl"
90	+	#elif defined(NATMEM_OFFSET)
91	+	#define DIRECT_ADDRESSING 1
92	+	#else
93	+	#define REAL_ADDRESSING 1
94	+	#endif
95	+
96	+	// Always use the complete non-stubs Ethernet driver
97	+	#define USE_ETHER_FULL_DRIVER 1
98
99		#define POWERPC_ROM 1
100
101		#if EMULATED_PPC
71	–	// Handle interrupts asynchronously?
72	–	#define ASYNC_IRQ 0
102		// Mac ROM is write protected when banked memory is used
103		#if REAL_ADDRESSING || DIRECT_ADDRESSING
104		# define ROM_IS_WRITE_PROTECTED 0
#	Line 77 | Line 106
106		#else
107		# define ROM_IS_WRITE_PROTECTED 1
108		#endif
109	+	// Configure PowerPC emulator
110	+	#define PPC_REENTRANT_JIT 1
111	+	#define PPC_CHECK_INTERRUPTS 1
112	+	#define PPC_DECODE_CACHE 1
113	+	#define PPC_FLIGHT_RECORDER 1
114	+	#define PPC_PROFILE_COMPILE_TIME 0
115	+	#define PPC_PROFILE_GENERIC_CALLS 0
116	+	#define PPC_PROFILE_REGS_USE 0
117	+	#define KPX_MAX_CPUS 1
118	+	#if ENABLE_DYNGEN
119	+	#define PPC_ENABLE_JIT 1
120	+	#endif
121	+	#if defined(__i386__) || defined(__x86_64__)
122	+	#define DYNGEN_ASM_OPTS 1
123	+	#endif
124		#else
125		// Mac ROM is write protected
126		#define ROM_IS_WRITE_PROTECTED 1
#	Line 127 | Line 171 | typedef int64 intptr;
171		#error "Unsupported size of pointer"
172		#endif
173
174	<	// Helper functions to byteswap data
174	>	// Define if the host processor supports fast unaligned load/stores
175	>	#if defined __i386__ || defined __x86_64__
176	>	#define UNALIGNED_PROFITABLE 1
177	>	#endif
178	>
179	>
180	>	/**
181	>	*              Helper functions to byteswap data
182	>	**/
183	>
184	>	#if defined(__GNUC__)
185	>	#if defined(__x86_64__) || defined(__i386__)
186	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
187	>	#define opt_bswap_32 do_opt_bswap_32
188	>	static inline uint32 do_opt_bswap_32(uint32 x)
189	>	{
190	>	uint32 v;
191	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
192	>	return v;
193	>	}
194	>	#endif
195	>	#endif
196	>
197		#ifdef HAVE_BYTESWAP_H
198		#include <byteswap.h>
199		#endif
200
201	+	#ifdef  opt_bswap_16
202	+	#undef  bswap_16
203	+	#define bswap_16 opt_bswap_16
204	+	#endif
205		#ifndef bswap_16
206		#define bswap_16 generic_bswap_16
207		#endif
#	Line 141 | Line 211 | static inline uint16 generic_bswap_16(ui
211		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
212		}
213
214	+	#ifdef  opt_bswap_32
215	+	#undef  bswap_32
216	+	#define bswap_32 opt_bswap_32
217	+	#endif
218		#ifndef bswap_32
219		#define bswap_32 generic_bswap_32
220		#endif
#	Line 153 | Line 227 | static inline uint32 generic_bswap_32(ui
227		((x & 0x000000ff) << 24) );
228		}
229
230	+	#if defined(__i386__)
231	+	#define opt_bswap_64 do_opt_bswap_64
232	+	static inline uint64 do_opt_bswap_64(uint64 x)
233	+	{
234	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
235	+	}
236	+	#endif
237	+
238	+	#ifdef  opt_bswap_64
239	+	#undef  bswap_64
240	+	#define bswap_64 opt_bswap_64
241	+	#endif
242		#ifndef bswap_64
243		#define bswap_64 generic_bswap_64
244		#endif
#	Line 182 | Line 268 | static inline uint64 tswap64(uint64 x) {
268		// spin locks
269		#ifdef __GNUC__
270
271	<	#ifdef __powerpc__
271	>	#if defined(__powerpc__) || defined(__ppc__)
272		#define HAVE_TEST_AND_SET 1
273	<	static inline int testandset(int *p)
273	>	static inline int testandset(volatile int *p)
274		{
275		int ret;
276	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
277	<	"      xor. %0,%3,%0;"
278	<	"      bne 1f;"
279	<	"      stwcx. %2,0,%1;"
280	<	"      bne- 0b;"
276	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
277	>	"      xor.    %0,%3,%0\n"
278	>	"      bne             1f\n"
279	>	"      stwcx.  %2,0,%1\n"
280	>	"      bne-    0b\n"
281		"1:    "
282		: "=&r" (ret)
283		: "r" (p), "r" (1), "r" (0)
#	Line 200 | Line 286 | static inline int testandset(int *p)
286		}
287		#endif
288
289	<	#ifdef __i386__
289	>	#if defined(__i386__) || defined(__x86_64__)
290		#define HAVE_TEST_AND_SET 1
291	<	static inline int testandset(int *p)
291	>	static inline int testandset(volatile int *p)
292		{
293	<	char ret;
294	<	long int readval;
295	<
296	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
297	<	: "=q" (ret), "=m" (*p), "=a" (readval)
212	<	: "r" (1), "m" (*p), "a" (0)
293	>	long int ret;
294	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
295	>	__asm__ __volatile__("xchgl %k0, %1"
296	>	: "=r" (ret), "=m" (*p)
297	>	: "0" (1), "m" (*p)
298		: "memory");
299		return ret;
300		}
#	Line 217 | Line 302 | static inline int testandset(int *p)
302
303		#ifdef __s390__
304		#define HAVE_TEST_AND_SET 1
305	<	static inline int testandset(int *p)
305	>	static inline int testandset(volatile int *p)
306		{
307		int ret;
308
#	Line 232 | Line 317 | static inline int testandset(int *p)
317
318		#ifdef __alpha__
319		#define HAVE_TEST_AND_SET 1
320	<	static inline int testandset(int *p)
320	>	static inline int testandset(volatile int *p)
321		{
322		int ret;
323		unsigned long one;
#	Line 252 | Line 337 | static inline int testandset(int *p)
337
338		#ifdef __sparc__
339		#define HAVE_TEST_AND_SET 1
340	<	static inline int testandset(int *p)
340	>	static inline int testandset(volatile int *p)
341		{
342		int ret;
343
#	Line 267 | Line 352 | static inline int testandset(int *p)
352
353		#ifdef __arm__
354		#define HAVE_TEST_AND_SET 1
355	<	static inline int testandset(int *p)
355	>	static inline int testandset(volatile int *p)
356		{
357		register unsigned int ret;
358		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 280 | Line 365 | static inline int testandset(int *p)
365
366		#endif /* __GNUC__ */
367
368	<	#if HAVE_TEST_AND_SET
284	<	#define HAVE_SPINLOCKS 1
285	<	typedef int spinlock_t;
368	>	typedef volatile int spinlock_t;
369
370	<	const spinlock_t SPIN_LOCK_UNLOCKED = 0;
370	>	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
371
372	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
373	+	// There is nothing to lock if we are not in an multithreaded environment
374	+	#define HAVE_SPINLOCKS 1
375		static inline void spin_lock(spinlock_t *lock)
376		{
377		while (testandset(lock));
#	Line 300 | Line 386 | static inline int spin_trylock(spinlock_
386		{
387		return !testandset(lock);
388		}
389	+	#else
390	+	static inline void spin_lock(spinlock_t *lock)
391	+	{
392	+	}
393	+
394	+	static inline void spin_unlock(spinlock_t *lock)
395	+	{
396	+	}
397	+
398	+	static inline int spin_trylock(spinlock_t *lock)
399	+	{
400	+	return 1;
401	+	}
402		#endif
403
404		// Time data type for Time Manager emulation
405		#ifdef HAVE_CLOCK_GETTIME
406		typedef struct timespec tm_time_t;
407	+	#elif defined(__MACH__)
408	+	typedef mach_timespec_t tm_time_t;
409		#else
410		typedef struct timeval tm_time_t;
411		#endif
412
413	+	/* Define codes for all the float formats that we know of.
414	+	* Though we only handle IEEE format.  */
415	+	#define UNKNOWN_FLOAT_FORMAT 0
416	+	#define IEEE_FLOAT_FORMAT 1
417	+	#define VAX_FLOAT_FORMAT 2
418	+	#define IBM_FLOAT_FORMAT 3
419	+	#define C4X_FLOAT_FORMAT 4
420	+
421	+	// High-precision timing
422	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
423	+	#define PRECISE_TIMING 1
424	+	#define PRECISE_TIMING_POSIX 1
425	+	#elif defined(HAVE_PTHREADS) && defined(__MACH__)
426	+	#define PRECISE_TIMING 1
427	+	#define PRECISE_TIMING_MACH 1
428	+	#endif
429	+
430	+	// Timing functions
431	+	extern uint64 GetTicks_usec(void);
432	+	extern void Delay_usec(uint32 usec);
433	+
434	+	#ifdef HAVE_PTHREADS
435		// Setup pthread attributes
436		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
437	+	#endif
438
439		// Various definitions
440		typedef struct rgb_color {
#	Line 320 | Line 444 | typedef struct rgb_color {
444		uint8           alpha;
445		} rgb_color;
446
447	+	// X11 display fast locks
448	+	#if defined(HAVE_PTHREADS)
449	+	#define X11_LOCK_TYPE pthread_mutex_t
450	+	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
451	+	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
452	+	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
453	+	#elif defined(HAVE_SPINLOCKS)
454	+	#define X11_LOCK_TYPE spinlock_t
455	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
456	+	#define XDisplayLock() spin_lock(&x_display_lock)
457	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
458	+	#else
459	+	#define XDisplayLock()
460	+	#define XDisplayUnlock()
461	+	#endif
462	+	#ifdef X11_LOCK_TYPE
463	+	extern X11_LOCK_TYPE x_display_lock;
464	+	#endif
465	+
466		// Macro for calling MacOS routines
467	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
468	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
469	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
470	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
471	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
472	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
473	<	#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)
474	<	#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)
467	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
468	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
469	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
470	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
471	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
472	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
473	>	#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)
474	>	#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)
475
476		#ifdef __cplusplus
477		extern "C" {

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