src/Unix/sysdeps.h

/*
 *  sysdeps.h - System dependent definitions for Linux
 *
 *  SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef SYSDEPS_H
#define SYSDEPS_H

#ifndef __STDC__
#error "Your compiler is not ANSI. Get a real one."
#endif

#include "config.h"
#include "user_strings_unix.h"

#ifndef STDC_HEADERS
#error "You don't have ANSI C header files."
#endif

#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
#endif

#include <netinet/in.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>

#ifdef HAVE_PTHREADS
# include <pthread.h>
#endif

#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif

#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif

// Define for external components
#define SHEEPSHAVER 1

// Always use Real Addressing mode on native architectures
// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
#if NATMEM_OFFSET == 0 || EMULATED_PPC == 0
#define REAL_ADDRESSING 1
#else
#define DIRECT_ADDRESSING 1
#endif

#define POWERPC_ROM 1

#if EMULATED_PPC
// Mac ROM is write protected when banked memory is used
#if REAL_ADDRESSING || DIRECT_ADDRESSING
# define ROM_IS_WRITE_PROTECTED 0
# define USE_SCRATCHMEM_SUBTERFUGE 1
#else
# define ROM_IS_WRITE_PROTECTED 1
#endif
// Configure PowerPC emulator
#define PPC_REENTRANT_JIT 1
#define PPC_CHECK_INTERRUPTS 1
#define PPC_DECODE_CACHE 1
#define PPC_FLIGHT_RECORDER 1
#define PPC_PROFILE_COMPILE_TIME 0
#define PPC_PROFILE_GENERIC_CALLS 0
#define KPX_MAX_CPUS 1
#if ENABLE_DYNGEN
// Don't bother with predecode cache when using JIT
#define PPC_ENABLE_JIT 1
#undef  PPC_DECODE_CACHE
#endif
#if defined(__i386__)
#define DYNGEN_ASM_OPTS 1
#endif
#else
// Mac ROM is write protected
#define ROM_IS_WRITE_PROTECTED 1
#define USE_SCRATCHMEM_SUBTERFUGE 0
#endif

// Data types
typedef unsigned char uint8;
typedef signed char int8;
#if SIZEOF_SHORT == 2
typedef unsigned short uint16;
typedef short int16;
#elif SIZEOF_INT == 2
typedef unsigned int uint16;
typedef int int16;
#else
#error "No 2 byte type, you lose."
#endif
#if SIZEOF_INT == 4
typedef unsigned int uint32;
typedef int int32;
#elif SIZEOF_LONG == 4
typedef unsigned long uint32;
typedef long int32;
#else
#error "No 4 byte type, you lose."
#endif
#if SIZEOF_LONG == 8
typedef unsigned long uint64;
typedef long int64;
#define VAL64(a) (a ## l)
#define UVAL64(a) (a ## ul)
#elif SIZEOF_LONG_LONG == 8
typedef unsigned long long uint64;
typedef long long int64;
#define VAL64(a) (a ## LL)
#define UVAL64(a) (a ## uLL)
#else
#error "No 8 byte type, you lose."
#endif
#if SIZEOF_VOID_P == 4
typedef uint32 uintptr;
typedef int32 intptr;
#elif SIZEOF_VOID_P == 8
typedef uint64 uintptr;
typedef int64 intptr;
#else
#error "Unsupported size of pointer"
#endif

/**
 *              Helper functions to byteswap data
 **/

#if defined(__GNUC__)
#if defined(__x86_64__) || defined(__i386__)
// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
#define opt_bswap_32 do_opt_bswap_32
static inline uint32 do_opt_bswap_32(uint32 x)
{
  uint32 v;
  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
  return v;
}
#endif
#endif

#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#endif

#ifdef  opt_bswap_16
#undef  bswap_16
#define bswap_16 opt_bswap_16
#endif
#ifndef bswap_16
#define bswap_16 generic_bswap_16
#endif

static inline uint16 generic_bswap_16(uint16 x)
{
  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
}

#ifdef  opt_bswap_32
#undef  bswap_32
#define bswap_32 opt_bswap_32
#endif
#ifndef bswap_32
#define bswap_32 generic_bswap_32
#endif

static inline uint32 generic_bswap_32(uint32 x)
{
  return (((x & 0xff000000) >> 24) |
                  ((x & 0x00ff0000) >>  8) |
                  ((x & 0x0000ff00) <<  8) |
                  ((x & 0x000000ff) << 24) );
}

#if defined(__i386__)
#define opt_bswap_64 do_opt_bswap_64
static inline uint64 do_opt_bswap_64(uint64 x)
{
  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
}
#endif

#ifdef  opt_bswap_64
#undef  bswap_64
#define bswap_64 opt_bswap_64
#endif
#ifndef bswap_64
#define bswap_64 generic_bswap_64
#endif

static inline uint64 generic_bswap_64(uint64 x)
{
  return (((x & UVAL64(0xff00000000000000)) >> 56) |
                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
                  ((x & UVAL64(0x000000000000ff00)) << 40) |
                  ((x & UVAL64(0x00000000000000ff)) << 56) );
}

#ifdef WORDS_BIGENDIAN
static inline uint16 tswap16(uint16 x) { return x; }
static inline uint32 tswap32(uint32 x) { return x; }
static inline uint64 tswap64(uint64 x) { return x; }
#else
static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
#endif

// spin locks
#ifdef __GNUC__

#if defined(__powerpc__) || defined(__ppc__)
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;
        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
                                                 "      xor.    %0,%3,%0\n"
                                                 "      bne             1f\n"
                                                 "      stwcx.  %2,0,%1\n"
                                                 "      bne-    0b\n"
                                                 "1:    "
                                                 : "=&r" (ret)
                                                 : "r" (p), "r" (1), "r" (0)
                                                 : "cr0", "memory");
        return ret;
}
#endif

/* FIXME: SheepShaver occasionnally hangs with those locks */
#if 0 && (defined(__i386__) || defined(__x86_64__))
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        long int ret;
        /* Note: the "xchg" instruction does not need a "lock" prefix */
        __asm__ __volatile__("xchgl %k0, %1"
                                                 : "=r" (ret), "=m" (*p)
                                                 : "0" (1), "m" (*p)
                                                 : "memory");
        return ret;
}
#endif

#ifdef __s390__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;

        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
                                                 "   jl    0b"
                                                 : "=&d" (ret)
                                                 : "r" (1), "a" (p), "0" (*p) 
                                                 : "cc", "memory" );
        return ret;
}
#endif

#ifdef __alpha__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;
        unsigned long one;

        __asm__ __volatile__("0:        mov 1,%2\n"
                                                 "      ldl_l %0,%1\n"
                                                 "      stl_c %2,%1\n"
                                                 "      beq %2,1f\n"
                                                 ".subsection 2\n"
                                                 "1:    br 0b\n"
                                                 ".previous"
                                                 : "=r" (ret), "=m" (*p), "=r" (one)
                                                 : "m" (*p));
        return ret;
}
#endif

#ifdef __sparc__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;

        __asm__ __volatile__("ldstub    [%1], %0"
                                                 : "=r" (ret)
                                                 : "r" (p)
                                                 : "memory");

        return (ret ? 1 : 0);
}
#endif

#ifdef __arm__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        register unsigned int ret;
        __asm__ __volatile__("swp %0, %1, [%2]"
                                                 : "=r"(ret)
                                                 : "0"(1), "r"(p));
        
        return ret;
}
#endif

#endif /* __GNUC__ */

typedef volatile int spinlock_t;

static const spinlock_t SPIN_LOCK_UNLOCKED = 0;

#if HAVE_TEST_AND_SET
#define HAVE_SPINLOCKS 1
static inline void spin_lock(spinlock_t *lock)
{
        while (testandset(lock));
}

static inline void spin_unlock(spinlock_t *lock)
{
        *lock = 0;
}

static inline int spin_trylock(spinlock_t *lock)
{
        return !testandset(lock);
}
#else
static inline void spin_lock(spinlock_t *lock)
{
}

static inline void spin_unlock(spinlock_t *lock)
{
}

static inline int spin_trylock(spinlock_t *lock)
{
        return 1;
}
#endif

// Time data type for Time Manager emulation
#ifdef HAVE_CLOCK_GETTIME
typedef struct timespec tm_time_t;
#else
typedef struct timeval tm_time_t;
#endif

// Timing functions
extern uint64 GetTicks_usec(void);
extern void Delay_usec(uint32 usec);

#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
// Setup pthread attributes
extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
#endif

// Various definitions
typedef struct rgb_color {
        uint8           red;
        uint8           green;
        uint8           blue;
        uint8           alpha;
} rgb_color;

// X11 display fast locks
#ifdef HAVE_SPINLOCKS
#define X11_LOCK_TYPE spinlock_t
#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
#define XDisplayLock() spin_lock(&x_display_lock)
#define XDisplayUnlock() spin_unlock(&x_display_lock)
#elif defined(HAVE_PTHREADS)
#define X11_LOCK_TYPE pthread_mutex_t
#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
#else
#define XDisplayLock()
#define XDisplayUnlock()
#endif
#ifdef X11_LOCK_TYPE
extern X11_LOCK_TYPE x_display_lock;
#endif

// Macro for calling MacOS routines
#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
#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)
#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)

#ifdef __cplusplus
extern "C" {
#endif
extern uint32 call_macos(uint32 tvect);
extern uint32 call_macos1(uint32 tvect, uint32 arg1);
extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
#ifdef __cplusplus
}
#endif

#endif
Revision:	1.34
Committed:	2004-11-13T14:09:16Z (20 years ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
Changes since 1.33:	+14 -9 lines
Log Message:	Implement Direct Addressing mode similarly to Basilisk II. This is to get SheepShaver working on OSes that don't support maipping of Low Memory globals at 0x00000000, e.g. Windows.
#	User	Rev	Content
1	cebix	1.1	/*
2			* sysdeps.h - System dependent definitions for Linux
3			*
4	cebix	1.21	* SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
5	cebix	1.1	*
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
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#ifndef SYSDEPS_H
22			#define SYSDEPS_H
23
24			#ifndef __STDC__
25			#error "Your compiler is not ANSI. Get a real one."
26			#endif
27
28			#include "config.h"
29			#include "user_strings_unix.h"
30
31			#ifndef STDC_HEADERS
32			#error "You don't have ANSI C header files."
33			#endif
34
35			#ifdef HAVE_UNISTD_H
36			# include <sys/types.h>
37			# include <unistd.h>
38			#endif
39
40			#include <netinet/in.h>
41			#include <assert.h>
42			#include <stdio.h>
43			#include <stdlib.h>
44			#include <string.h>
45			#include <signal.h>
46
47	gbeauche	1.24	#ifdef HAVE_PTHREADS
48			# include <pthread.h>
49			#endif
50
51	cebix	1.1	#ifdef HAVE_FCNTL_H
52			# include <fcntl.h>
53			#endif
54
55			#ifdef TIME_WITH_SYS_TIME
56			# include <sys/time.h>
57			# include <time.h>
58			#else
59			# ifdef HAVE_SYS_TIME_H
60			# include <sys/time.h>
61			# else
62			# include <time.h>
63			# endif
64			#endif
65
66	gbeauche	1.5	// Define for external components
67			#define SHEEPSHAVER 1
68
69	gbeauche	1.34	// Always use Real Addressing mode on native architectures
70			// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
71			#if NATMEM_OFFSET == 0 \|\| EMULATED_PPC == 0
72	gbeauche	1.4	#define REAL_ADDRESSING 1
73	gbeauche	1.34	#else
74			#define DIRECT_ADDRESSING 1
75			#endif
76	gbeauche	1.4
77	gbeauche	1.5	#define POWERPC_ROM 1
78
79			#if EMULATED_PPC
80			// Mac ROM is write protected when banked memory is used
81			#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
82			# define ROM_IS_WRITE_PROTECTED 0
83			# define USE_SCRATCHMEM_SUBTERFUGE 1
84	cebix	1.1	#else
85	gbeauche	1.5	# define ROM_IS_WRITE_PROTECTED 1
86			#endif
87	gbeauche	1.9	// Configure PowerPC emulator
88	gbeauche	1.29	#define PPC_REENTRANT_JIT 1
89	gbeauche	1.30	#define PPC_CHECK_INTERRUPTS 1
90	gbeauche	1.14	#define PPC_DECODE_CACHE 1
91	gbeauche	1.10	#define PPC_FLIGHT_RECORDER 1
92	gbeauche	1.17	#define PPC_PROFILE_COMPILE_TIME 0
93			#define PPC_PROFILE_GENERIC_CALLS 0
94	gbeauche	1.16	#define KPX_MAX_CPUS 1
95	gbeauche	1.33	#if ENABLE_DYNGEN
96			// Don't bother with predecode cache when using JIT
97			#define PPC_ENABLE_JIT 1
98			#undef PPC_DECODE_CACHE
99			#endif
100	gbeauche	1.28	#if defined(__i386__)
101			#define DYNGEN_ASM_OPTS 1
102			#endif
103	gbeauche	1.5	#else
104			// Mac ROM is write protected
105			#define ROM_IS_WRITE_PROTECTED 1
106			#define USE_SCRATCHMEM_SUBTERFUGE 0
107	cebix	1.1	#endif
108
109			// Data types
110			typedef unsigned char uint8;
111			typedef signed char int8;
112			#if SIZEOF_SHORT == 2
113			typedef unsigned short uint16;
114			typedef short int16;
115			#elif SIZEOF_INT == 2
116			typedef unsigned int uint16;
117			typedef int int16;
118			#else
119			#error "No 2 byte type, you lose."
120			#endif
121			#if SIZEOF_INT == 4
122			typedef unsigned int uint32;
123			typedef int int32;
124			#elif SIZEOF_LONG == 4
125			typedef unsigned long uint32;
126			typedef long int32;
127			#else
128			#error "No 4 byte type, you lose."
129			#endif
130			#if SIZEOF_LONG == 8
131			typedef unsigned long uint64;
132			typedef long int64;
133	gbeauche	1.3	#define VAL64(a) (a ## l)
134			#define UVAL64(a) (a ## ul)
135	cebix	1.1	#elif SIZEOF_LONG_LONG == 8
136			typedef unsigned long long uint64;
137			typedef long long int64;
138	gbeauche	1.3	#define VAL64(a) (a ## LL)
139			#define UVAL64(a) (a ## uLL)
140	cebix	1.1	#else
141			#error "No 8 byte type, you lose."
142			#endif
143	gbeauche	1.3	#if SIZEOF_VOID_P == 4
144			typedef uint32 uintptr;
145			typedef int32 intptr;
146			#elif SIZEOF_VOID_P == 8
147			typedef uint64 uintptr;
148			typedef int64 intptr;
149			#else
150			#error "Unsupported size of pointer"
151	gbeauche	1.5	#endif
152
153	gbeauche	1.15	/**
154			* Helper functions to byteswap data
155			**/
156
157			#if defined(__GNUC__)
158	gbeauche	1.23	#if defined(__x86_64__) \|\| defined(__i386__)
159	gbeauche	1.15	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
160			#define opt_bswap_32 do_opt_bswap_32
161			static inline uint32 do_opt_bswap_32(uint32 x)
162			{
163			uint32 v;
164			__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
165			return v;
166			}
167			#endif
168			#endif
169
170	gbeauche	1.5	#ifdef HAVE_BYTESWAP_H
171			#include <byteswap.h>
172			#endif
173
174	gbeauche	1.15	#ifdef opt_bswap_16
175			#undef bswap_16
176			#define bswap_16 opt_bswap_16
177			#endif
178	gbeauche	1.5	#ifndef bswap_16
179			#define bswap_16 generic_bswap_16
180			#endif
181
182			static inline uint16 generic_bswap_16(uint16 x)
183			{
184			return ((x & 0xff) << 8) \| ((x >> 8) & 0xff);
185			}
186
187	gbeauche	1.15	#ifdef opt_bswap_32
188			#undef bswap_32
189			#define bswap_32 opt_bswap_32
190			#endif
191	gbeauche	1.5	#ifndef bswap_32
192			#define bswap_32 generic_bswap_32
193			#endif
194
195			static inline uint32 generic_bswap_32(uint32 x)
196			{
197			return (((x & 0xff000000) >> 24) \|
198			((x & 0x00ff0000) >> 8) \|
199			((x & 0x0000ff00) << 8) \|
200			((x & 0x000000ff) << 24) );
201			}
202	gbeauche	1.23
203			#if defined(__i386__)
204			#define opt_bswap_64 do_opt_bswap_64
205			static inline uint64 do_opt_bswap_64(uint64 x)
206			{
207			return (bswap_32(x >> 32) \| (((uint64)bswap_32((uint32)x)) << 32));
208			}
209			#endif
210	gbeauche	1.5
211	gbeauche	1.15	#ifdef opt_bswap_64
212			#undef bswap_64
213			#define bswap_64 opt_bswap_64
214			#endif
215	gbeauche	1.5	#ifndef bswap_64
216			#define bswap_64 generic_bswap_64
217			#endif
218
219			static inline uint64 generic_bswap_64(uint64 x)
220			{
221			return (((x & UVAL64(0xff00000000000000)) >> 56) \|
222			((x & UVAL64(0x00ff000000000000)) >> 40) \|
223			((x & UVAL64(0x0000ff0000000000)) >> 24) \|
224			((x & UVAL64(0x000000ff00000000)) >> 8) \|
225			((x & UVAL64(0x00000000ff000000)) << 8) \|
226			((x & UVAL64(0x0000000000ff0000)) << 24) \|
227			((x & UVAL64(0x000000000000ff00)) << 40) \|
228			((x & UVAL64(0x00000000000000ff)) << 56) );
229			}
230
231			#ifdef WORDS_BIGENDIAN
232			static inline uint16 tswap16(uint16 x) { return x; }
233			static inline uint32 tswap32(uint32 x) { return x; }
234			static inline uint64 tswap64(uint64 x) { return x; }
235			#else
236			static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
237			static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
238			static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
239	gbeauche	1.3	#endif
240	cebix	1.1
241	gbeauche	1.6	// spin locks
242			#ifdef __GNUC__
243
244	gbeauche	1.22	#if defined(__powerpc__) \|\| defined(__ppc__)
245	gbeauche	1.6	#define HAVE_TEST_AND_SET 1
246	gbeauche	1.20	static inline int testandset(volatile int *p)
247	gbeauche	1.6	{
248			int ret;
249	gbeauche	1.22	__asm__ __volatile__("0: lwarx %0,0,%1\n"
250			" xor. %0,%3,%0\n"
251			" bne 1f\n"
252			" stwcx. %2,0,%1\n"
253			" bne- 0b\n"
254	gbeauche	1.6	"1: "
255			: "=&r" (ret)
256			: "r" (p), "r" (1), "r" (0)
257			: "cr0", "memory");
258			return ret;
259			}
260			#endif
261
262	gbeauche	1.32	/* FIXME: SheepShaver occasionnally hangs with those locks */
263			#if 0 && (defined(__i386__) \|\| defined(__x86_64__))
264	gbeauche	1.6	#define HAVE_TEST_AND_SET 1
265	gbeauche	1.20	static inline int testandset(volatile int *p)
266	gbeauche	1.6	{
267	gbeauche	1.31	long int ret;
268	gbeauche	1.20	/* Note: the "xchg" instruction does not need a "lock" prefix */
269	gbeauche	1.31	__asm__ __volatile__("xchgl %k0, %1"
270			: "=r" (ret), "=m" (*p)
271	gbeauche	1.20	: "0" (1), "m" (*p)
272	gbeauche	1.6	: "memory");
273			return ret;
274			}
275			#endif
276
277			#ifdef __s390__
278			#define HAVE_TEST_AND_SET 1
279	gbeauche	1.20	static inline int testandset(volatile int *p)
280	gbeauche	1.6	{
281			int ret;
282
283			__asm__ __volatile__("0: cs %0,%1,0(%2)\n"
284			" jl 0b"
285			: "=&d" (ret)
286			: "r" (1), "a" (p), "0" (*p)
287			: "cc", "memory" );
288			return ret;
289			}
290			#endif
291
292			#ifdef __alpha__
293			#define HAVE_TEST_AND_SET 1
294	gbeauche	1.20	static inline int testandset(volatile int *p)
295	gbeauche	1.6	{
296			int ret;
297			unsigned long one;
298
299			__asm__ __volatile__("0: mov 1,%2\n"
300			" ldl_l %0,%1\n"
301			" stl_c %2,%1\n"
302			" beq %2,1f\n"
303			".subsection 2\n"
304			"1: br 0b\n"
305			".previous"
306			: "=r" (ret), "=m" (*p), "=r" (one)
307			: "m" (*p));
308			return ret;
309			}
310			#endif
311
312			#ifdef __sparc__
313			#define HAVE_TEST_AND_SET 1
314	gbeauche	1.20	static inline int testandset(volatile int *p)
315	gbeauche	1.6	{
316			int ret;
317
318			__asm__ __volatile__("ldstub [%1], %0"
319			: "=r" (ret)
320			: "r" (p)
321			: "memory");
322
323			return (ret ? 1 : 0);
324			}
325			#endif
326
327			#ifdef __arm__
328			#define HAVE_TEST_AND_SET 1
329	gbeauche	1.20	static inline int testandset(volatile int *p)
330	gbeauche	1.6	{
331			register unsigned int ret;
332			__asm__ __volatile__("swp %0, %1, [%2]"
333			: "=r"(ret)
334			: "0"(1), "r"(p));
335
336			return ret;
337			}
338			#endif
339
340			#endif /* __GNUC__ */
341
342	gbeauche	1.20	typedef volatile int spinlock_t;
343	gbeauche	1.6
344	gbeauche	1.8	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
345	gbeauche	1.6
346	gbeauche	1.32	#if HAVE_TEST_AND_SET
347			#define HAVE_SPINLOCKS 1
348	gbeauche	1.6	static inline void spin_lock(spinlock_t *lock)
349			{
350			while (testandset(lock));
351			}
352
353			static inline void spin_unlock(spinlock_t *lock)
354			{
355			*lock = 0;
356			}
357
358			static inline int spin_trylock(spinlock_t *lock)
359			{
360			return !testandset(lock);
361			}
362	gbeauche	1.32	#else
363			static inline void spin_lock(spinlock_t *lock)
364			{
365			}
366
367			static inline void spin_unlock(spinlock_t *lock)
368			{
369			}
370
371			static inline int spin_trylock(spinlock_t *lock)
372			{
373			return 1;
374			}
375	gbeauche	1.6	#endif
376
377	cebix	1.1	// Time data type for Time Manager emulation
378			#ifdef HAVE_CLOCK_GETTIME
379			typedef struct timespec tm_time_t;
380			#else
381			typedef struct timeval tm_time_t;
382			#endif
383
384	gbeauche	1.18	// Timing functions
385			extern uint64 GetTicks_usec(void);
386			extern void Delay_usec(uint32 usec);
387
388	gbeauche	1.25	#if defined(HAVE_PTHREADS) \|\| (defined(__linux__) && defined(__powerpc__))
389	cebix	1.2	// Setup pthread attributes
390			extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
391	gbeauche	1.24	#endif
392	cebix	1.2
393	cebix	1.1	// Various definitions
394			typedef struct rgb_color {
395			uint8 red;
396			uint8 green;
397			uint8 blue;
398			uint8 alpha;
399			} rgb_color;
400
401	gbeauche	1.19	// X11 display fast locks
402			#ifdef HAVE_SPINLOCKS
403			#define X11_LOCK_TYPE spinlock_t
404			#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
405			#define XDisplayLock() spin_lock(&x_display_lock)
406			#define XDisplayUnlock() spin_unlock(&x_display_lock)
407			#elif defined(HAVE_PTHREADS)
408			#define X11_LOCK_TYPE pthread_mutex_t
409			#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
410			#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
411			#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
412			#else
413			#define XDisplayLock()
414			#define XDisplayUnlock()
415			#endif
416			#ifdef X11_LOCK_TYPE
417			extern X11_LOCK_TYPE x_display_lock;
418			#endif
419
420	cebix	1.1	// Macro for calling MacOS routines
421	gbeauche	1.34	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
422			#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
423			#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
424			#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
425			#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
426			#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
427			#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)
428			#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)
429	cebix	1.1
430	gbeauche	1.3	#ifdef __cplusplus
431			extern "C" {
432			#endif
433			extern uint32 call_macos(uint32 tvect);
434			extern uint32 call_macos1(uint32 tvect, uint32 arg1);
435			extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
436			extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
437			extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
438			extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
439			extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
440			extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
441			#ifdef __cplusplus
442			}
443			#endif
444	cebix	1.1
445			#endif