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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 1.51 by gbeauche, 2006-04-01T21:41:18Z

#	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
97		#if EMULATED_PPC
71	–	// Handle interrupts asynchronously?
72	–	#define ASYNC_IRQ 0
98		// Mac ROM is write protected when banked memory is used
99		#if REAL_ADDRESSING || DIRECT_ADDRESSING
100		# define ROM_IS_WRITE_PROTECTED 0
#	Line 78 | Line 103
103		# define ROM_IS_WRITE_PROTECTED 1
104		#endif
105		// Configure PowerPC emulator
106	<	#define PPC_NO_LAZY_PC_UPDATE 1
107	<	#define PPC_NO_DECODE_CACHE 1
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 131 | Line 166 | typedef int64 intptr;
166		#error "Unsupported size of pointer"
167		#endif
168
169	<	// Helper functions to byteswap data
169	>	/**
170	>	*              Helper macros to annotate likely branch directions
171	>	**/
172	>
173	>	#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
174	>	#define likely(x)               __builtin_expect((x),1)
175	>	#define unlikely(x)             __builtin_expect((x),0)
176	>	#endif
177	>	#ifndef likely
178	>	#define likely(x)               (x)
179	>	#endif
180	>	#ifndef unlikely
181	>	#define unlikely(x)             (x)
182	>	#endif
183	>
184	>	/**
185	>	*              Helper functions to byteswap data
186	>	**/
187	>
188	>	#if defined(__GNUC__)
189	>	#if defined(__x86_64__) || defined(__i386__)
190	>	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
191	>	#define opt_bswap_32 do_opt_bswap_32
192	>	static inline uint32 do_opt_bswap_32(uint32 x)
193	>	{
194	>	uint32 v;
195	>	__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
196	>	return v;
197	>	}
198	>	#endif
199	>	#endif
200	>
201		#ifdef HAVE_BYTESWAP_H
202		#include <byteswap.h>
203		#endif
204
205	+	#ifdef  opt_bswap_16
206	+	#undef  bswap_16
207	+	#define bswap_16 opt_bswap_16
208	+	#endif
209		#ifndef bswap_16
210		#define bswap_16 generic_bswap_16
211		#endif
#	Line 145 | Line 215 | static inline uint16 generic_bswap_16(ui
215		return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
216		}
217
218	+	#ifdef  opt_bswap_32
219	+	#undef  bswap_32
220	+	#define bswap_32 opt_bswap_32
221	+	#endif
222		#ifndef bswap_32
223		#define bswap_32 generic_bswap_32
224		#endif
#	Line 157 | Line 231 | static inline uint32 generic_bswap_32(ui
231		((x & 0x000000ff) << 24) );
232		}
233
234	+	#if defined(__i386__)
235	+	#define opt_bswap_64 do_opt_bswap_64
236	+	static inline uint64 do_opt_bswap_64(uint64 x)
237	+	{
238	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
239	+	}
240	+	#endif
241	+
242	+	#ifdef  opt_bswap_64
243	+	#undef  bswap_64
244	+	#define bswap_64 opt_bswap_64
245	+	#endif
246		#ifndef bswap_64
247		#define bswap_64 generic_bswap_64
248		#endif
#	Line 186 | Line 272 | static inline uint64 tswap64(uint64 x) {
272		// spin locks
273		#ifdef __GNUC__
274
275	<	#ifdef __powerpc__
275	>	#if defined(__powerpc__) || defined(__ppc__)
276		#define HAVE_TEST_AND_SET 1
277	<	static inline int testandset(int *p)
277	>	static inline int testandset(volatile int *p)
278		{
279		int ret;
280	<	__asm__ __volatile__("0:    lwarx %0,0,%1 ;"
281	<	"      xor. %0,%3,%0;"
282	<	"      bne 1f;"
283	<	"      stwcx. %2,0,%1;"
284	<	"      bne- 0b;"
280	>	__asm__ __volatile__("0:    lwarx       %0,0,%1\n"
281	>	"      xor.    %0,%3,%0\n"
282	>	"      bne             1f\n"
283	>	"      stwcx.  %2,0,%1\n"
284	>	"      bne-    0b\n"
285		"1:    "
286		: "=&r" (ret)
287		: "r" (p), "r" (1), "r" (0)
#	Line 204 | Line 290 | static inline int testandset(int *p)
290		}
291		#endif
292
293	<	#ifdef __i386__
293	>	#if defined(__i386__) || defined(__x86_64__)
294		#define HAVE_TEST_AND_SET 1
295	<	static inline int testandset(int *p)
295	>	static inline int testandset(volatile int *p)
296		{
297	<	char ret;
298	<	long int readval;
299	<
300	<	__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
301	<	: "=q" (ret), "=m" (*p), "=a" (readval)
216	<	: "r" (1), "m" (*p), "a" (0)
297	>	long int ret;
298	>	/* Note: the "xchg" instruction does not need a "lock" prefix */
299	>	__asm__ __volatile__("xchgl %k0, %1"
300	>	: "=r" (ret), "=m" (*p)
301	>	: "0" (1), "m" (*p)
302		: "memory");
303		return ret;
304		}
#	Line 221 | Line 306 | static inline int testandset(int *p)
306
307		#ifdef __s390__
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
#	Line 236 | Line 321 | static inline int testandset(int *p)
321
322		#ifdef __alpha__
323		#define HAVE_TEST_AND_SET 1
324	<	static inline int testandset(int *p)
324	>	static inline int testandset(volatile int *p)
325		{
326		int ret;
327		unsigned long one;
#	Line 256 | Line 341 | static inline int testandset(int *p)
341
342		#ifdef __sparc__
343		#define HAVE_TEST_AND_SET 1
344	<	static inline int testandset(int *p)
344	>	static inline int testandset(volatile int *p)
345		{
346		int ret;
347
#	Line 271 | Line 356 | static inline int testandset(int *p)
356
357		#ifdef __arm__
358		#define HAVE_TEST_AND_SET 1
359	<	static inline int testandset(int *p)
359	>	static inline int testandset(volatile int *p)
360		{
361		register unsigned int ret;
362		__asm__ __volatile__("swp %0, %1, [%2]"
#	Line 284 | Line 369 | static inline int testandset(int *p)
369
370		#endif /* __GNUC__ */
371
372	<	#if HAVE_TEST_AND_SET
288	<	#define HAVE_SPINLOCKS 1
289	<	typedef int spinlock_t;
372	>	typedef volatile int spinlock_t;
373
374		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
375
376	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
377	+	// There is nothing to lock if we are not in an multithreaded environment
378	+	#define HAVE_SPINLOCKS 1
379		static inline void spin_lock(spinlock_t *lock)
380		{
381		while (testandset(lock));
#	Line 304 | Line 390 | static inline int spin_trylock(spinlock_
390		{
391		return !testandset(lock);
392		}
393	+	#else
394	+	static inline void spin_lock(spinlock_t *lock)
395	+	{
396	+	}
397	+
398	+	static inline void spin_unlock(spinlock_t *lock)
399	+	{
400	+	}
401	+
402	+	static inline int spin_trylock(spinlock_t *lock)
403	+	{
404	+	return 1;
405	+	}
406		#endif
407
408		// Time data type for Time Manager emulation
#	Line 313 | Line 412 | typedef struct timespec tm_time_t;
412		typedef struct timeval tm_time_t;
413		#endif
414
415	+	/* Define codes for all the float formats that we know of.
416	+	* Though we only handle IEEE format.  */
417	+	#define UNKNOWN_FLOAT_FORMAT 0
418	+	#define IEEE_FLOAT_FORMAT 1
419	+	#define VAX_FLOAT_FORMAT 2
420	+	#define IBM_FLOAT_FORMAT 3
421	+	#define C4X_FLOAT_FORMAT 4
422	+
423	+	// High-precision timing
424	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
425	+	#define PRECISE_TIMING 1
426	+	#define PRECISE_TIMING_POSIX 1
427	+	#endif
428	+
429	+	// Timing functions
430	+	extern uint64 GetTicks_usec(void);
431	+	extern void Delay_usec(uint32 usec);
432	+
433	+	#ifdef HAVE_PTHREADS
434		// Setup pthread attributes
435		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
436	+	#endif
437
438		// Various definitions
439		typedef struct rgb_color {
#	Line 324 | Line 443 | typedef struct rgb_color {
443		uint8           alpha;
444		} rgb_color;
445
446	+	// X11 display fast locks
447	+	#if defined(HAVE_PTHREADS)
448	+	#define X11_LOCK_TYPE pthread_mutex_t
449	+	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
450	+	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
451	+	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
452	+	#elif defined(HAVE_SPINLOCKS)
453	+	#define X11_LOCK_TYPE spinlock_t
454	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
455	+	#define XDisplayLock() spin_lock(&x_display_lock)
456	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
457	+	#else
458	+	#define XDisplayLock()
459	+	#define XDisplayUnlock()
460	+	#endif
461	+	#ifdef X11_LOCK_TYPE
462	+	extern X11_LOCK_TYPE x_display_lock;
463	+	#endif
464	+
465		// Macro for calling MacOS routines
466	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
467	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
468	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
469	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
470	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
471	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
472	<	#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)
473	<	#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)
466	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
467	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
468	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
469	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
470	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
471	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
472	>	#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)
473	>	#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)
474
475		#ifdef __cplusplus
476		extern "C" {

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