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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.11 by gbeauche, 2003-10-12T05:44:14Z 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) 1997-2002 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		#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_NO_LAZY_PC_UPDATE 1
104	<	#define PPC_NO_DECODE_CACHE 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 131 | Line 165 | typedef int64 intptr;
165		#error "Unsupported size of pointer"
166		#endif
167
168	<	// Helper functions to byteswap data
168	>	/**
169	>	*              Helper functions to byteswap data
170	>	**/
171	>
172	>	#if defined(__GNUC__)
173	>	#if defined(__x86_64__) || defined(__i386__)
174	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
175	>	#define opt_bswap_32 do_opt_bswap_32
176	>	static inline uint32 do_opt_bswap_32(uint32 x)
177	>	{
178	>	uint32 v;
179	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
180	>	return v;
181	>	}
182	>	#endif
183	>	#endif
184	>
185		#ifdef HAVE_BYTESWAP_H
186		#include <byteswap.h>
187		#endif
188
189	+	#ifdef  opt_bswap_16
190	+	#undef  bswap_16
191	+	#define bswap_16 opt_bswap_16
192	+	#endif
193		#ifndef bswap_16
194		#define bswap_16 generic_bswap_16
195		#endif
#	Line 145 | Line 199 | static inline uint16 generic_bswap_16(ui
199		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
200		}
201
202	+	#ifdef  opt_bswap_32
203	+	#undef  bswap_32
204	+	#define bswap_32 opt_bswap_32
205	+	#endif
206		#ifndef bswap_32
207		#define bswap_32 generic_bswap_32
208		#endif
#	Line 157 | Line 215 | static inline uint32 generic_bswap_32(ui
215		((x & 0x000000ff) << 24) );
216		}
217
218	+	#if defined(__i386__)
219	+	#define opt_bswap_64 do_opt_bswap_64
220	+	static inline uint64 do_opt_bswap_64(uint64 x)
221	+	{
222	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
223	+	}
224	+	#endif
225	+
226	+	#ifdef  opt_bswap_64
227	+	#undef  bswap_64
228	+	#define bswap_64 opt_bswap_64
229	+	#endif
230		#ifndef bswap_64
231		#define bswap_64 generic_bswap_64
232		#endif
#	Line 186 | Line 256 | static inline uint64 tswap64(uint64 x) {
256		// spin locks
257		#ifdef __GNUC__
258
259	<	#ifdef __powerpc__
259	>	#if defined(__powerpc__) || defined(__ppc__)
260		#define HAVE_TEST_AND_SET 1
261	<	static inline int testandset(int *p)
261	>	static inline int testandset(volatile int *p)
262		{
263		int ret;
264	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
265	<	"      xor. %0,%3,%0;"
266	<	"      bne 1f;"
267	<	"      stwcx. %2,0,%1;"
268	<	"      bne- 0b;"
264	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
265	>	"      xor.    %0,%3,%0\n"
266	>	"      bne             1f\n"
267	>	"      stwcx.  %2,0,%1\n"
268	>	"      bne-    0b\n"
269		"1:    "
270		: "=&r" (ret)
271		: "r" (p), "r" (1), "r" (0)
#	Line 204 | Line 274 | static inline int testandset(int *p)
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(int *p)
279	>	static inline int testandset(volatile int *p)
280		{
281	<	char ret;
282	<	long int readval;
283	<
284	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
285	<	: "=q" (ret), "=m" (*p), "=a" (readval)
216	<	: "r" (1), "m" (*p), "a" (0)
281	>	long int ret;
282	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
283	>	__asm__ __volatile__("xchgl %k0, %1"
284	>	: "=r" (ret), "=m" (*p)
285	>	: "0" (1), "m" (*p)
286		: "memory");
287		return ret;
288		}
#	Line 221 | Line 290 | static inline int testandset(int *p)
290
291		#ifdef __s390__
292		#define HAVE_TEST_AND_SET 1
293	<	static inline int testandset(int *p)
293	>	static inline int testandset(volatile int *p)
294		{
295		int ret;
296
#	Line 236 | Line 305 | static inline int testandset(int *p)
305
306		#ifdef __alpha__
307		#define HAVE_TEST_AND_SET 1
308	<	static inline int testandset(int *p)
308	>	static inline int testandset(volatile int *p)
309		{
310		int ret;
311		unsigned long one;
#	Line 256 | Line 325 | static inline int testandset(int *p)
325
326		#ifdef __sparc__
327		#define HAVE_TEST_AND_SET 1
328	<	static inline int testandset(int *p)
328	>	static inline int testandset(volatile int *p)
329		{
330		int ret;
331
#	Line 271 | Line 340 | static inline int testandset(int *p)
340
341		#ifdef __arm__
342		#define HAVE_TEST_AND_SET 1
343	<	static inline int testandset(int *p)
343	>	static inline int testandset(volatile int *p)
344		{
345		register unsigned int ret;
346		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 284 | Line 353 | static inline int testandset(int *p)
353
354		#endif /* __GNUC__ */
355
356	<	#if HAVE_TEST_AND_SET
288	<	#define HAVE_SPINLOCKS 1
289	<	typedef int spinlock_t;
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 304 | 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 313 | 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 324 | Line 427 | typedef struct rgb_color {
427		uint8           alpha;
428		} rgb_color;
429
430	+	// X11 display fast locks
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()
444	+	#endif
445	+	#ifdef X11_LOCK_TYPE
446	+	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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