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

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.25 by gbeauche, 2004-02-25T22:02:59Z vs.
Revision 1.40 by gbeauche, 2005-03-05T19:07:35Z

#	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) 1997-2005 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
#	Line 63 | 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
75	–	// Handle interrupts asynchronously?
76	–	#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 82 | Line 114
114		# define ROM_IS_WRITE_PROTECTED 1
115		#endif
116		// Configure PowerPC emulator
117	<	#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
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 247 | Line 288 | static inline int testandset(volatile in
288		}
289		#endif
290
291	<	#ifdef __i386__
291	>	/* FIXME: SheepShaver occasionnally hangs with those locks */
292	>	#if 0 && (defined(__i386__) || defined(__x86_64__))
293		#define HAVE_TEST_AND_SET 1
294		static inline int testandset(volatile int *p)
295		{
296	<	int ret;
255	<	long int readval;
296	>	long int ret;
297		/* Note: the "xchg" instruction does not need a "lock" prefix */
298	<	__asm__ __volatile__("xchgl %0, %1"
299	<	: "=r" (ret), "=m" (*p), "=a" (readval)
298	>	__asm__ __volatile__("xchgl %k0, %1"
299	>	: "=r" (ret), "=m" (*p)
300		: "0" (1), "m" (*p)
301		: "memory");
302		return ret;
#	Line 327 | Line 368 | static inline int testandset(volatile in
368
369		#endif /* __GNUC__ */
370
330	–	#if HAVE_TEST_AND_SET
331	–	#define HAVE_SPINLOCKS 1
371		typedef volatile int spinlock_t;
372
373		static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
374
375	+	#if HAVE_TEST_AND_SET
376	+	#define HAVE_SPINLOCKS 1
377		static inline void spin_lock(spinlock_t *lock)
378		{
379		while (testandset(lock));
#	Line 347 | 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 356 | Line 410 | typedef struct timespec tm_time_t;
410		typedef struct timeval tm_time_t;
411		#endif
412
413	+	// High-precision timing
414	+	#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
415	+	#define PRECISE_TIMING 1
416	+	#define PRECISE_TIMING_POSIX 1
417	+	#endif
418	+
419		// Timing functions
420		extern uint64 GetTicks_usec(void);
421		extern void Delay_usec(uint32 usec);
422
423	<	#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
423	>	#if defined(HAVE_PTHREADS) || ((defined(__linux__) || defined(__NetBSD__)) && defined(__powerpc__))
424		// Setup pthread attributes
425		extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
426		#endif
#	Line 393 | Line 453 | extern X11_LOCK_TYPE x_display_lock;
453		#endif
454
455		// Macro for calling MacOS routines
456	<	#define CallMacOS(type, tvect) call_macos((uint32)tvect)
457	<	#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
458	<	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
459	<	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
460	<	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
461	<	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
462	<	#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)
463	<	#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)
456	>	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
457	>	#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
458	>	#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
459	>	#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
460	>	#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
461	>	#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
462	>	#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)
463	>	#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)
464
465		#ifdef __cplusplus
466		extern "C" {

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