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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 1.49 by gbeauche, 2005-11-27T16:20:17Z

#	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 78 | Line 105
105		# define ROM_IS_WRITE_PROTECTED 1
106		#endif
107		// Configure PowerPC emulator
108	<	#define PPC_NO_LAZY_PC_UPDATE 1
109	<	#define PPC_NO_DECODE_CACHE 1
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	+	#define PPC_ENABLE_JIT 1
117	+	#endif
118	+	#if defined(__i386__)
119	+	#define DYNGEN_ASM_OPTS 1
120	+	#endif
121		#else
122		// Mac ROM is write protected
123		#define ROM_IS_WRITE_PROTECTED 1
#	Line 131 | Line 168 | typedef int64 intptr;
168		#error "Unsupported size of pointer"
169		#endif
170
171	<	// Helper functions to byteswap data
171	>	/**
172	>	*              Helper functions to byteswap data
173	>	**/
174	>
175	>	#if defined(__GNUC__)
176	>	#if defined(__x86_64__) || defined(__i386__)
177	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
178	>	#define opt_bswap_32 do_opt_bswap_32
179	>	static inline uint32 do_opt_bswap_32(uint32 x)
180	>	{
181	>	uint32 v;
182	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
183	>	return v;
184	>	}
185	>	#endif
186	>	#endif
187	>
188		#ifdef HAVE_BYTESWAP_H
189		#include <byteswap.h>
190		#endif
191
192	+	#ifdef  opt_bswap_16
193	+	#undef  bswap_16
194	+	#define bswap_16 opt_bswap_16
195	+	#endif
196		#ifndef bswap_16
197		#define bswap_16 generic_bswap_16
198		#endif
#	Line 145 | Line 202 | static inline uint16 generic_bswap_16(ui
202		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
203		}
204
205	+	#ifdef  opt_bswap_32
206	+	#undef  bswap_32
207	+	#define bswap_32 opt_bswap_32
208	+	#endif
209		#ifndef bswap_32
210		#define bswap_32 generic_bswap_32
211		#endif
#	Line 157 | Line 218 | static inline uint32 generic_bswap_32(ui
218		((x & 0x000000ff) << 24) );
219		}
220
221	+	#if defined(__i386__)
222	+	#define opt_bswap_64 do_opt_bswap_64
223	+	static inline uint64 do_opt_bswap_64(uint64 x)
224	+	{
225	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
226	+	}
227	+	#endif
228	+
229	+	#ifdef  opt_bswap_64
230	+	#undef  bswap_64
231	+	#define bswap_64 opt_bswap_64
232	+	#endif
233		#ifndef bswap_64
234		#define bswap_64 generic_bswap_64
235		#endif
#	Line 186 | Line 259 | static inline uint64 tswap64(uint64 x) {
259		// spin locks
260		#ifdef __GNUC__
261
262	<	#ifdef __powerpc__
262	>	#if defined(__powerpc__) || defined(__ppc__)
263		#define HAVE_TEST_AND_SET 1
264	<	static inline int testandset(int *p)
264	>	static inline int testandset(volatile int *p)
265		{
266		int ret;
267	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
268	<	"      xor. %0,%3,%0;"
269	<	"      bne 1f;"
270	<	"      stwcx. %2,0,%1;"
271	<	"      bne- 0b;"
267	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
268	>	"      xor.    %0,%3,%0\n"
269	>	"      bne             1f\n"
270	>	"      stwcx.  %2,0,%1\n"
271	>	"      bne-    0b\n"
272		"1:    "
273		: "=&r" (ret)
274		: "r" (p), "r" (1), "r" (0)
#	Line 204 | Line 277 | static inline int testandset(int *p)
277		}
278		#endif
279
280	<	#ifdef __i386__
280	>	#if defined(__i386__) || defined(__x86_64__)
281		#define HAVE_TEST_AND_SET 1
282	<	static inline int testandset(int *p)
282	>	static inline int testandset(volatile int *p)
283		{
284	<	char ret;
285	<	long int readval;
286	<
287	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
288	<	: "=q" (ret), "=m" (*p), "=a" (readval)
216	<	: "r" (1), "m" (*p), "a" (0)
284	>	long int ret;
285	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
286	>	__asm__ __volatile__("xchgl %k0, %1"
287	>	: "=r" (ret), "=m" (*p)
288	>	: "0" (1), "m" (*p)
289		: "memory");
290		return ret;
291		}
#	Line 221 | Line 293 | static inline int testandset(int *p)
293
294		#ifdef __s390__
295		#define HAVE_TEST_AND_SET 1
296	<	static inline int testandset(int *p)
296	>	static inline int testandset(volatile int *p)
297		{
298		int ret;
299
#	Line 236 | Line 308 | static inline int testandset(int *p)
308
309		#ifdef __alpha__
310		#define HAVE_TEST_AND_SET 1
311	<	static inline int testandset(int *p)
311	>	static inline int testandset(volatile int *p)
312		{
313		int ret;
314		unsigned long one;
#	Line 256 | Line 328 | static inline int testandset(int *p)
328
329		#ifdef __sparc__
330		#define HAVE_TEST_AND_SET 1
331	<	static inline int testandset(int *p)
331	>	static inline int testandset(volatile int *p)
332		{
333		int ret;
334
#	Line 271 | Line 343 | static inline int testandset(int *p)
343
344		#ifdef __arm__
345		#define HAVE_TEST_AND_SET 1
346	<	static inline int testandset(int *p)
346	>	static inline int testandset(volatile int *p)
347		{
348		register unsigned int ret;
349		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 284 | Line 356 | static inline int testandset(int *p)
356
357		#endif /* __GNUC__ */
358
359	<	#if HAVE_TEST_AND_SET
288	<	#define HAVE_SPINLOCKS 1
289	<	typedef int spinlock_t;
359	>	typedef volatile int spinlock_t;
360
361		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
362
363	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
364	+	// There is nothing to lock if we are not in an multithreaded environment
365	+	#define HAVE_SPINLOCKS 1
366		static inline void spin_lock(spinlock_t *lock)
367		{
368		while (testandset(lock));
#	Line 304 | Line 377 | static inline int spin_trylock(spinlock_
377		{
378		return !testandset(lock);
379		}
380	+	#else
381	+	static inline void spin_lock(spinlock_t *lock)
382	+	{
383	+	}
384	+
385	+	static inline void spin_unlock(spinlock_t *lock)
386	+	{
387	+	}
388	+
389	+	static inline int spin_trylock(spinlock_t *lock)
390	+	{
391	+	return 1;
392	+	}
393		#endif
394
395		// Time data type for Time Manager emulation
#	Line 313 | Line 399 | typedef struct timespec tm_time_t;
399		typedef struct timeval tm_time_t;
400		#endif
401
402	+	/* Define codes for all the float formats that we know of.
403	+	* Though we only handle IEEE format.  */
404	+	#define UNKNOWN_FLOAT_FORMAT 0
405	+	#define IEEE_FLOAT_FORMAT 1
406	+	#define VAX_FLOAT_FORMAT 2
407	+	#define IBM_FLOAT_FORMAT 3
408	+	#define C4X_FLOAT_FORMAT 4
409	+
410	+	// High-precision timing
411	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
412	+	#define PRECISE_TIMING 1
413	+	#define PRECISE_TIMING_POSIX 1
414	+	#endif
415	+
416	+	// Timing functions
417	+	extern uint64 GetTicks_usec(void);
418	+	extern void Delay_usec(uint32 usec);
419	+
420	+	#ifdef HAVE_PTHREADS
421		// Setup pthread attributes
422		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
423	+	#endif
424
425		// Various definitions
426		typedef struct rgb_color {
#	Line 324 | Line 430 | typedef struct rgb_color {
430		uint8           alpha;
431		} rgb_color;
432
433	+	// X11 display fast locks
434	+	#if defined(HAVE_PTHREADS)
435	+	#define X11_LOCK_TYPE pthread_mutex_t
436	+	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
437	+	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
438	+	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
439	+	#elif defined(HAVE_SPINLOCKS)
440	+	#define X11_LOCK_TYPE spinlock_t
441	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
442	+	#define XDisplayLock() spin_lock(&x_display_lock)
443	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
444	+	#else
445	+	#define XDisplayLock()
446	+	#define XDisplayUnlock()
447	+	#endif
448	+	#ifdef X11_LOCK_TYPE
449	+	extern X11_LOCK_TYPE x_display_lock;
450	+	#endif
451	+
452		// Macro for calling MacOS routines
453	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
454	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
455	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
456	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
457	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
458	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
459	<	#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)
460	<	#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)
453	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
454	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
455	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
456	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
457	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
458	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
459	>	#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)
460	>	#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)
461
462		#ifdef __cplusplus
463		extern "C" {

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