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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 1.46 by gbeauche, 2005-07-01T23:15:11Z

#	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(__CYGWIN__)
87	+	#define DIRECT_ADDRESSING 1
88	+	#define DIRECT_ADDRESSING_HACK 1
89	+	/*
90	+	The following address translation functions were empirically
91	+	determined on a Windows XP system running Cygwin 1.5.12-1 so
92	+	that RAM size can be maximized (up to 960 MB) and avoiding
93	+	the use of a TLB. This also takes into account reduced address
94	+	space available when the Cygwin runtime is used.
95	+	*/
96	+	#define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
97	+	((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
98	+	#define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
99	+	((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
100	+	#elif defined(NATMEM_OFFSET)
101	+	#define DIRECT_ADDRESSING 1
102	+	#else
103	+	#define REAL_ADDRESSING 1
104	+	#endif
105
106		#define POWERPC_ROM 1
107
108		#if EMULATED_PPC
71	–	// Handle interrupts asynchronously?
72	–	#define ASYNC_IRQ 0
109		// Mac ROM is write protected when banked memory is used
110		#if REAL_ADDRESSING || DIRECT_ADDRESSING
111		# define ROM_IS_WRITE_PROTECTED 0
#	Line 77 | Line 113
113		#else
114		# define ROM_IS_WRITE_PROTECTED 1
115		#endif
116	+	// Configure PowerPC emulator
117	+	#define PPC_REENTRANT_JIT 1
118	+	#define PPC_CHECK_INTERRUPTS 1
119	+	#define PPC_DECODE_CACHE 1
120	+	#define PPC_FLIGHT_RECORDER 1
121	+	#define PPC_PROFILE_COMPILE_TIME 0
122	+	#define PPC_PROFILE_GENERIC_CALLS 0
123	+	#define KPX_MAX_CPUS 1
124	+	#if ENABLE_DYNGEN
125	+	// Don't bother with predecode cache when using JIT
126	+	#define PPC_ENABLE_JIT 1
127	+	#undef  PPC_DECODE_CACHE
128	+	#endif
129	+	#if defined(__i386__)
130	+	#define DYNGEN_ASM_OPTS 1
131	+	#endif
132		#else
133		// Mac ROM is write protected
134		#define ROM_IS_WRITE_PROTECTED 1
#	Line 127 | Line 179 | typedef int64 intptr;
179		#error "Unsupported size of pointer"
180		#endif
181
182	<	// Helper functions to byteswap data
182	>	/**
183	>	*              Helper functions to byteswap data
184	>	**/
185	>
186	>	#if defined(__GNUC__)
187	>	#if defined(__x86_64__) || defined(__i386__)
188	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
189	>	#define opt_bswap_32 do_opt_bswap_32
190	>	static inline uint32 do_opt_bswap_32(uint32 x)
191	>	{
192	>	uint32 v;
193	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
194	>	return v;
195	>	}
196	>	#endif
197	>	#endif
198	>
199		#ifdef HAVE_BYTESWAP_H
200		#include <byteswap.h>
201		#endif
202
203	+	#ifdef  opt_bswap_16
204	+	#undef  bswap_16
205	+	#define bswap_16 opt_bswap_16
206	+	#endif
207		#ifndef bswap_16
208		#define bswap_16 generic_bswap_16
209		#endif
#	Line 141 | Line 213 | static inline uint16 generic_bswap_16(ui
213		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
214		}
215
216	+	#ifdef  opt_bswap_32
217	+	#undef  bswap_32
218	+	#define bswap_32 opt_bswap_32
219	+	#endif
220		#ifndef bswap_32
221		#define bswap_32 generic_bswap_32
222		#endif
#	Line 153 | Line 229 | static inline uint32 generic_bswap_32(ui
229		((x & 0x000000ff) << 24) );
230		}
231
232	+	#if defined(__i386__)
233	+	#define opt_bswap_64 do_opt_bswap_64
234	+	static inline uint64 do_opt_bswap_64(uint64 x)
235	+	{
236	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
237	+	}
238	+	#endif
239	+
240	+	#ifdef  opt_bswap_64
241	+	#undef  bswap_64
242	+	#define bswap_64 opt_bswap_64
243	+	#endif
244		#ifndef bswap_64
245		#define bswap_64 generic_bswap_64
246		#endif
#	Line 182 | Line 270 | static inline uint64 tswap64(uint64 x) {
270		// spin locks
271		#ifdef __GNUC__
272
273	<	#ifdef __powerpc__
273	>	#if defined(__powerpc__) || defined(__ppc__)
274		#define HAVE_TEST_AND_SET 1
275	<	static inline int testandset(int *p)
275	>	static inline int testandset(volatile int *p)
276		{
277		int ret;
278	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
279	<	"      xor. %0,%3,%0;"
280	<	"      bne 1f;"
281	<	"      stwcx. %2,0,%1;"
282	<	"      bne- 0b;"
278	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
279	>	"      xor.    %0,%3,%0\n"
280	>	"      bne             1f\n"
281	>	"      stwcx.  %2,0,%1\n"
282	>	"      bne-    0b\n"
283		"1:    "
284		: "=&r" (ret)
285		: "r" (p), "r" (1), "r" (0)
#	Line 200 | Line 288 | static inline int testandset(int *p)
288		}
289		#endif
290
291	<	#ifdef __i386__
291	>	#if defined(__i386__) || defined(__x86_64__)
292		#define HAVE_TEST_AND_SET 1
293	<	static inline int testandset(int *p)
293	>	static inline int testandset(volatile int *p)
294		{
295	<	char ret;
296	<	long int readval;
297	<
298	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
299	<	: "=q" (ret), "=m" (*p), "=a" (readval)
212	<	: "r" (1), "m" (*p), "a" (0)
295	>	long int ret;
296	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
297	>	__asm__ __volatile__("xchgl %k0, %1"
298	>	: "=r" (ret), "=m" (*p)
299	>	: "0" (1), "m" (*p)
300		: "memory");
301		return ret;
302		}
#	Line 217 | Line 304 | static inline int testandset(int *p)
304
305		#ifdef __s390__
306		#define HAVE_TEST_AND_SET 1
307	<	static inline int testandset(int *p)
307	>	static inline int testandset(volatile int *p)
308		{
309		int ret;
310
#	Line 232 | Line 319 | static inline int testandset(int *p)
319
320		#ifdef __alpha__
321		#define HAVE_TEST_AND_SET 1
322	<	static inline int testandset(int *p)
322	>	static inline int testandset(volatile int *p)
323		{
324		int ret;
325		unsigned long one;
#	Line 252 | Line 339 | static inline int testandset(int *p)
339
340		#ifdef __sparc__
341		#define HAVE_TEST_AND_SET 1
342	<	static inline int testandset(int *p)
342	>	static inline int testandset(volatile int *p)
343		{
344		int ret;
345
#	Line 267 | Line 354 | static inline int testandset(int *p)
354
355		#ifdef __arm__
356		#define HAVE_TEST_AND_SET 1
357	<	static inline int testandset(int *p)
357	>	static inline int testandset(volatile int *p)
358		{
359		register unsigned int ret;
360		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 280 | Line 367 | static inline int testandset(int *p)
367
368		#endif /* __GNUC__ */
369
370	<	#if HAVE_TEST_AND_SET
284	<	#define HAVE_SPINLOCKS 1
285	<	typedef int spinlock_t;
370	>	typedef volatile int spinlock_t;
371
372	<	const spinlock_t SPIN_LOCK_UNLOCKED = 0;
372	>	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
373
374	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
375	+	// There is nothing to lock if we are not in an multithreaded environment
376	+	#define HAVE_SPINLOCKS 1
377		static inline void spin_lock(spinlock_t *lock)
378		{
379		while (testandset(lock));
#	Line 300 | Line 388 | static inline int spin_trylock(spinlock_
388		{
389		return !testandset(lock);
390		}
391	+	#else
392	+	static inline void spin_lock(spinlock_t *lock)
393	+	{
394	+	}
395	+
396	+	static inline void spin_unlock(spinlock_t *lock)
397	+	{
398	+	}
399	+
400	+	static inline int spin_trylock(spinlock_t *lock)
401	+	{
402	+	return 1;
403	+	}
404		#endif
405
406		// Time data type for Time Manager emulation
#	Line 309 | Line 410 | typedef struct timespec tm_time_t;
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	+	#endif
426	+
427	+	// Timing functions
428	+	extern uint64 GetTicks_usec(void);
429	+	extern void Delay_usec(uint32 usec);
430	+
431	+	#ifdef HAVE_PTHREADS
432		// Setup pthread attributes
433		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
434	+	#endif
435
436		// Various definitions
437		typedef struct rgb_color {
#	Line 320 | Line 441 | typedef struct rgb_color {
441		uint8           alpha;
442		} rgb_color;
443
444	+	// X11 display fast locks
445	+	#if defined(HAVE_PTHREADS)
446	+	#define X11_LOCK_TYPE pthread_mutex_t
447	+	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
448	+	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
449	+	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
450	+	#elif defined(HAVE_SPINLOCKS)
451	+	#define X11_LOCK_TYPE spinlock_t
452	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
453	+	#define XDisplayLock() spin_lock(&x_display_lock)
454	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
455	+	#else
456	+	#define XDisplayLock()
457	+	#define XDisplayUnlock()
458	+	#endif
459	+	#ifdef X11_LOCK_TYPE
460	+	extern X11_LOCK_TYPE x_display_lock;
461	+	#endif
462	+
463		// Macro for calling MacOS routines
464	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
465	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
466	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
467	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
468	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
469	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
470	<	#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)
471	<	#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)
464	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
465	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
466	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
467	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
468	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
469	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
470	>	#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)
471	>	#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)
472
473		#ifdef __cplusplus
474		extern "C" {

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