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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.22 by gbeauche, 2004-01-18T22:05:28Z vs.
Revision 1.57 by gbeauche, 2008-01-01T09:47:39Z

#	Line 1 | Line 1
1		/*
2		*  sysdeps.h - System dependent definitions for Linux
3		*
4	<	*  SheepShaver (C) 1997-2004 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	+	// 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_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 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
111	>	#define PPC_PROFILE_GENERIC_CALLS 1
112	>	#define PPC_PROFILE_REGS_USE 0
113		#define KPX_MAX_CPUS 1
114	+	#if ENABLE_DYNGEN
115	+	#define PPC_ENABLE_JIT 1
116	+	#endif
117	+	#if defined(__i386__) || defined(__x86_64__)
118	+	#define DYNGEN_ASM_OPTS 1
119	+	#endif
120		#else
121		// Mac ROM is write protected
122		#define ROM_IS_WRITE_PROTECTED 1
#	Line 134 | Line 167 | typedef int64 intptr;
167		#error "Unsupported size of pointer"
168		#endif
169
170	+	// Define if the host processor supports fast unaligned load/stores
171	+	#if defined __i386__ || defined __x86_64__
172	+	#define UNALIGNED_PROFITABLE 1
173	+	#endif
174	+
175	+
176		/**
177		*              Helper functions to byteswap data
178		**/
179
180		#if defined(__GNUC__)
181	<	#if defined(__x86_64__)
181	>	#if defined(__x86_64__) || defined(__i386__)
182		// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
183		#define opt_bswap_32 do_opt_bswap_32
184		static inline uint32 do_opt_bswap_32(uint32 x)
#	Line 184 | Line 223 | static inline uint32 generic_bswap_32(ui
223		((x & 0x000000ff) << 24) );
224		}
225
226	+	#if defined(__i386__)
227	+	#define opt_bswap_64 do_opt_bswap_64
228	+	static inline uint64 do_opt_bswap_64(uint64 x)
229	+	{
230	+	return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
231	+	}
232	+	#endif
233	+
234		#ifdef  opt_bswap_64
235		#undef  bswap_64
236		#define bswap_64 opt_bswap_64
#	Line 235 | Line 282 | static inline int testandset(volatile in
282		}
283		#endif
284
285	<	#ifdef __i386__
285	>	#if defined(__i386__) || defined(__x86_64__)
286		#define HAVE_TEST_AND_SET 1
287		static inline int testandset(volatile int *p)
288		{
289	<	int ret;
243	<	long int readval;
289	>	long int ret;
290		/* Note: the "xchg" instruction does not need a "lock" prefix */
291	<	__asm__ __volatile__("xchgl %0, %1"
292	<	: "=r" (ret), "=m" (*p), "=a" (readval)
291	>	__asm__ __volatile__("xchgl %k0, %1"
292	>	: "=r" (ret), "=m" (*p)
293		: "0" (1), "m" (*p)
294		: "memory");
295		return ret;
#	Line 315 | Line 361 | static inline int testandset(volatile in
361
362		#endif /* __GNUC__ */
363
318	–	#if HAVE_TEST_AND_SET
319	–	#define HAVE_SPINLOCKS 1
364		typedef volatile int spinlock_t;
365
366		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
367
368	+	#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
369	+	// There is nothing to lock if we are not in an multithreaded environment
370	+	#define HAVE_SPINLOCKS 1
371		static inline void spin_lock(spinlock_t *lock)
372		{
373		while (testandset(lock));
#	Line 335 | Line 382 | static inline int spin_trylock(spinlock_
382		{
383		return !testandset(lock);
384		}
385	+	#else
386	+	static inline void spin_lock(spinlock_t *lock)
387	+	{
388	+	}
389	+
390	+	static inline void spin_unlock(spinlock_t *lock)
391	+	{
392	+	}
393	+
394	+	static inline int spin_trylock(spinlock_t *lock)
395	+	{
396	+	return 1;
397	+	}
398		#endif
399
400		// Time data type for Time Manager emulation
#	Line 344 | Line 404 | typedef struct timespec tm_time_t;
404		typedef struct timeval tm_time_t;
405		#endif
406
407	+	/* Define codes for all the float formats that we know of.
408	+	* Though we only handle IEEE format.  */
409	+	#define UNKNOWN_FLOAT_FORMAT 0
410	+	#define IEEE_FLOAT_FORMAT 1
411	+	#define VAX_FLOAT_FORMAT 2
412	+	#define IBM_FLOAT_FORMAT 3
413	+	#define C4X_FLOAT_FORMAT 4
414	+
415	+	// High-precision timing
416	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
417	+	#define PRECISE_TIMING 1
418	+	#define PRECISE_TIMING_POSIX 1
419	+	#endif
420	+
421		// Timing functions
422		extern uint64 GetTicks_usec(void);
423		extern void Delay_usec(uint32 usec);
424
425	+	#ifdef HAVE_PTHREADS
426		// Setup pthread attributes
427		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
428	+	#endif
429
430		// Various definitions
431		typedef struct rgb_color {
#	Line 360 | Line 436 | typedef struct rgb_color {
436		} rgb_color;
437
438		// X11 display fast locks
439	<	#ifdef HAVE_SPINLOCKS
364	<	#define X11_LOCK_TYPE spinlock_t
365	<	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
366	<	#define XDisplayLock() spin_lock(&x_display_lock)
367	<	#define XDisplayUnlock() spin_unlock(&x_display_lock)
368	<	#elif defined(HAVE_PTHREADS)
439	>	#if defined(HAVE_PTHREADS)
440		#define X11_LOCK_TYPE pthread_mutex_t
441		#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
442		#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
443		#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
444	+	#elif defined(HAVE_SPINLOCKS)
445	+	#define X11_LOCK_TYPE spinlock_t
446	+	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
447	+	#define XDisplayLock() spin_lock(&x_display_lock)
448	+	#define XDisplayUnlock() spin_unlock(&x_display_lock)
449		#else
450		#define XDisplayLock()
451		#define XDisplayUnlock()
#	Line 379 | Line 455 | extern X11_LOCK_TYPE x_display_lock;
455		#endif
456
457		// Macro for calling MacOS routines
458	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
459	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
460	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
461	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
462	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
463	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
464	<	#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)
465	<	#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)
458	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
459	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
460	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
461	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
462	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
463	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
464	>	#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)
465	>	#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)
466
467		#ifdef __cplusplus
468		extern "C" {

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