src/Unix/sysdeps.h

/*
 *  sysdeps.h - System dependent definitions for Linux
 *
 *  SheepShaver (C) 1997-2005 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 <stddef.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

// Fix offsetof() on FreeBSD and GCC >= 3.4
#if defined(__FreeBSD__) && defined(__cplusplus)
#undef offsetof
/* The cast to "char &" below avoids problems with user-defined
   "operator &", which can appear in a POD type.  */
#define offsetof(TYPE, MEMBER)                          \
  (__offsetof__ (reinterpret_cast <size_t>              \
                 (&reinterpret_cast <char &>            \
                  (static_cast<TYPE *> (0)->MEMBER))))
#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 !defined(EMULATED_PPC)
#define REAL_ADDRESSING 1
#include "ppc_asm.tmpl"
#elif defined(__CYGWIN__)
#define DIRECT_ADDRESSING 1
#define DIRECT_ADDRESSING_HACK 1
/*
  The following address translation functions were empirically
  determined on a Windows XP system running Cygwin 1.5.12-1 so
  that RAM size can be maximized (up to 960 MB) and avoiding
  the use of a TLB. This also takes into account reduced address
  space available when the Cygwin runtime is used.
*/
#define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
        ((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
#define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
        ((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
#elif defined(NATMEM_OFFSET)
#define DIRECT_ADDRESSING 1
#else
#define REAL_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(__NetBSD__)) && 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:	1.39
Committed:	2005-02-27T21:52:06Z (19 years, 3 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
Changes since 1.38:	+1 -0 lines
Log Message:	Fix native Linux/ppc with recent enough glibc that supports TLS; r2 is used in that case. Tell me if I broke other arches, e.g. r13 is no longer saved in Video and Ethernet stubs, though it seems to be OK. Colateral feature: SheepShaver should now run on Linux/ppc64 with relevant 32-bit runtime. Native Linux/ppc64 support is harder as low mem globals are 32-bit in mind and e.g. the TLS register there is %r13, %r2 is the TOC (PowerOpen/AIX ABI)
#	User	Rev	Content
1	cebix	1.1	/*
2			* sysdeps.h - System dependent definitions for Linux
3			*
4	gbeauche	1.36	* SheepShaver (C) 1997-2005 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	gbeauche	1.37	#include <stddef.h>
45	cebix	1.1	#include <string.h>
46			#include <signal.h>
47
48	gbeauche	1.24	#ifdef HAVE_PTHREADS
49			# include <pthread.h>
50			#endif
51
52	cebix	1.1	#ifdef HAVE_FCNTL_H
53			# include <fcntl.h>
54			#endif
55
56			#ifdef TIME_WITH_SYS_TIME
57			# include <sys/time.h>
58			# include <time.h>
59			#else
60			# ifdef HAVE_SYS_TIME_H
61			# include <sys/time.h>
62			# else
63			# include <time.h>
64			# endif
65			#endif
66
67	gbeauche	1.37	// 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	gbeauche	1.5	// Define for external components
79			#define SHEEPSHAVER 1
80
81	gbeauche	1.34	// Always use Real Addressing mode on native architectures
82			// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
83	gbeauche	1.35	#if !defined(EMULATED_PPC)
84	gbeauche	1.4	#define REAL_ADDRESSING 1
85	gbeauche	1.39	#include "ppc_asm.tmpl"
86	gbeauche	1.35	#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	gbeauche	1.34	#else
103	gbeauche	1.35	#define REAL_ADDRESSING 1
104	gbeauche	1.34	#endif
105	gbeauche	1.4
106	gbeauche	1.5	#define POWERPC_ROM 1
107
108			#if EMULATED_PPC
109			// Mac ROM is write protected when banked memory is used
110			#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
111			# define ROM_IS_WRITE_PROTECTED 0
112			# define USE_SCRATCHMEM_SUBTERFUGE 1
113	cebix	1.1	#else
114	gbeauche	1.5	# define ROM_IS_WRITE_PROTECTED 1
115			#endif
116	gbeauche	1.9	// Configure PowerPC emulator
117	gbeauche	1.29	#define PPC_REENTRANT_JIT 1
118	gbeauche	1.30	#define PPC_CHECK_INTERRUPTS 1
119	gbeauche	1.14	#define PPC_DECODE_CACHE 1
120	gbeauche	1.10	#define PPC_FLIGHT_RECORDER 1
121	gbeauche	1.17	#define PPC_PROFILE_COMPILE_TIME 0
122			#define PPC_PROFILE_GENERIC_CALLS 0
123	gbeauche	1.16	#define KPX_MAX_CPUS 1
124	gbeauche	1.33	#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	gbeauche	1.28	#if defined(__i386__)
130			#define DYNGEN_ASM_OPTS 1
131			#endif
132	gbeauche	1.5	#else
133			// Mac ROM is write protected
134			#define ROM_IS_WRITE_PROTECTED 1
135			#define USE_SCRATCHMEM_SUBTERFUGE 0
136	cebix	1.1	#endif
137
138			// Data types
139			typedef unsigned char uint8;
140			typedef signed char int8;
141			#if SIZEOF_SHORT == 2
142			typedef unsigned short uint16;
143			typedef short int16;
144			#elif SIZEOF_INT == 2
145			typedef unsigned int uint16;
146			typedef int int16;
147			#else
148			#error "No 2 byte type, you lose."
149			#endif
150			#if SIZEOF_INT == 4
151			typedef unsigned int uint32;
152			typedef int int32;
153			#elif SIZEOF_LONG == 4
154			typedef unsigned long uint32;
155			typedef long int32;
156			#else
157			#error "No 4 byte type, you lose."
158			#endif
159			#if SIZEOF_LONG == 8
160			typedef unsigned long uint64;
161			typedef long int64;
162	gbeauche	1.3	#define VAL64(a) (a ## l)
163			#define UVAL64(a) (a ## ul)
164	cebix	1.1	#elif SIZEOF_LONG_LONG == 8
165			typedef unsigned long long uint64;
166			typedef long long int64;
167	gbeauche	1.3	#define VAL64(a) (a ## LL)
168			#define UVAL64(a) (a ## uLL)
169	cebix	1.1	#else
170			#error "No 8 byte type, you lose."
171			#endif
172	gbeauche	1.3	#if SIZEOF_VOID_P == 4
173			typedef uint32 uintptr;
174			typedef int32 intptr;
175			#elif SIZEOF_VOID_P == 8
176			typedef uint64 uintptr;
177			typedef int64 intptr;
178			#else
179			#error "Unsupported size of pointer"
180	gbeauche	1.5	#endif
181
182	gbeauche	1.15	/**
183			* Helper functions to byteswap data
184			**/
185
186			#if defined(__GNUC__)
187	gbeauche	1.23	#if defined(__x86_64__) \|\| defined(__i386__)
188	gbeauche	1.15	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
189			#define opt_bswap_32 do_opt_bswap_32
190			static inline uint32 do_opt_bswap_32(uint32 x)
191			{
192			uint32 v;
193			__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
194			return v;
195			}
196			#endif
197			#endif
198
199	gbeauche	1.5	#ifdef HAVE_BYTESWAP_H
200			#include <byteswap.h>
201			#endif
202
203	gbeauche	1.15	#ifdef opt_bswap_16
204			#undef bswap_16
205			#define bswap_16 opt_bswap_16
206			#endif
207	gbeauche	1.5	#ifndef bswap_16
208			#define bswap_16 generic_bswap_16
209			#endif
210
211			static inline uint16 generic_bswap_16(uint16 x)
212			{
213			return ((x & 0xff) << 8) \| ((x >> 8) & 0xff);
214			}
215
216	gbeauche	1.15	#ifdef opt_bswap_32
217			#undef bswap_32
218			#define bswap_32 opt_bswap_32
219			#endif
220	gbeauche	1.5	#ifndef bswap_32
221			#define bswap_32 generic_bswap_32
222			#endif
223
224			static inline uint32 generic_bswap_32(uint32 x)
225			{
226			return (((x & 0xff000000) >> 24) \|
227			((x & 0x00ff0000) >> 8) \|
228			((x & 0x0000ff00) << 8) \|
229			((x & 0x000000ff) << 24) );
230			}
231	gbeauche	1.23
232			#if defined(__i386__)
233			#define opt_bswap_64 do_opt_bswap_64
234			static inline uint64 do_opt_bswap_64(uint64 x)
235			{
236			return (bswap_32(x >> 32) \| (((uint64)bswap_32((uint32)x)) << 32));
237			}
238			#endif
239	gbeauche	1.5
240	gbeauche	1.15	#ifdef opt_bswap_64
241			#undef bswap_64
242			#define bswap_64 opt_bswap_64
243			#endif
244	gbeauche	1.5	#ifndef bswap_64
245			#define bswap_64 generic_bswap_64
246			#endif
247
248			static inline uint64 generic_bswap_64(uint64 x)
249			{
250			return (((x & UVAL64(0xff00000000000000)) >> 56) \|
251			((x & UVAL64(0x00ff000000000000)) >> 40) \|
252			((x & UVAL64(0x0000ff0000000000)) >> 24) \|
253			((x & UVAL64(0x000000ff00000000)) >> 8) \|
254			((x & UVAL64(0x00000000ff000000)) << 8) \|
255			((x & UVAL64(0x0000000000ff0000)) << 24) \|
256			((x & UVAL64(0x000000000000ff00)) << 40) \|
257			((x & UVAL64(0x00000000000000ff)) << 56) );
258			}
259
260			#ifdef WORDS_BIGENDIAN
261			static inline uint16 tswap16(uint16 x) { return x; }
262			static inline uint32 tswap32(uint32 x) { return x; }
263			static inline uint64 tswap64(uint64 x) { return x; }
264			#else
265			static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
266			static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
267			static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
268	gbeauche	1.3	#endif
269	cebix	1.1
270	gbeauche	1.6	// spin locks
271			#ifdef __GNUC__
272
273	gbeauche	1.22	#if defined(__powerpc__) \|\| defined(__ppc__)
274	gbeauche	1.6	#define HAVE_TEST_AND_SET 1
275	gbeauche	1.20	static inline int testandset(volatile int *p)
276	gbeauche	1.6	{
277			int ret;
278	gbeauche	1.22	__asm__ __volatile__("0: lwarx %0,0,%1\n"
279			" xor. %0,%3,%0\n"
280			" bne 1f\n"
281			" stwcx. %2,0,%1\n"
282			" bne- 0b\n"
283	gbeauche	1.6	"1: "
284			: "=&r" (ret)
285			: "r" (p), "r" (1), "r" (0)
286			: "cr0", "memory");
287			return ret;
288			}
289			#endif
290
291	gbeauche	1.32	/* FIXME: SheepShaver occasionnally hangs with those locks */
292			#if 0 && (defined(__i386__) \|\| defined(__x86_64__))
293	gbeauche	1.6	#define HAVE_TEST_AND_SET 1
294	gbeauche	1.20	static inline int testandset(volatile int *p)
295	gbeauche	1.6	{
296	gbeauche	1.31	long int ret;
297	gbeauche	1.20	/* Note: the "xchg" instruction does not need a "lock" prefix */
298	gbeauche	1.31	__asm__ __volatile__("xchgl %k0, %1"
299			: "=r" (ret), "=m" (*p)
300	gbeauche	1.20	: "0" (1), "m" (*p)
301	gbeauche	1.6	: "memory");
302			return ret;
303			}
304			#endif
305
306			#ifdef __s390__
307			#define HAVE_TEST_AND_SET 1
308	gbeauche	1.20	static inline int testandset(volatile int *p)
309	gbeauche	1.6	{
310			int ret;
311
312			__asm__ __volatile__("0: cs %0,%1,0(%2)\n"
313			" jl 0b"
314			: "=&d" (ret)
315			: "r" (1), "a" (p), "0" (*p)
316			: "cc", "memory" );
317			return ret;
318			}
319			#endif
320
321			#ifdef __alpha__
322			#define HAVE_TEST_AND_SET 1
323	gbeauche	1.20	static inline int testandset(volatile int *p)
324	gbeauche	1.6	{
325			int ret;
326			unsigned long one;
327
328			__asm__ __volatile__("0: mov 1,%2\n"
329			" ldl_l %0,%1\n"
330			" stl_c %2,%1\n"
331			" beq %2,1f\n"
332			".subsection 2\n"
333			"1: br 0b\n"
334			".previous"
335			: "=r" (ret), "=m" (*p), "=r" (one)
336			: "m" (*p));
337			return ret;
338			}
339			#endif
340
341			#ifdef __sparc__
342			#define HAVE_TEST_AND_SET 1
343	gbeauche	1.20	static inline int testandset(volatile int *p)
344	gbeauche	1.6	{
345			int ret;
346
347			__asm__ __volatile__("ldstub [%1], %0"
348			: "=r" (ret)
349			: "r" (p)
350			: "memory");
351
352			return (ret ? 1 : 0);
353			}
354			#endif
355
356			#ifdef __arm__
357			#define HAVE_TEST_AND_SET 1
358	gbeauche	1.20	static inline int testandset(volatile int *p)
359	gbeauche	1.6	{
360			register unsigned int ret;
361			__asm__ __volatile__("swp %0, %1, [%2]"
362			: "=r"(ret)
363			: "0"(1), "r"(p));
364
365			return ret;
366			}
367			#endif
368
369			#endif /* __GNUC__ */
370
371	gbeauche	1.20	typedef volatile int spinlock_t;
372	gbeauche	1.6
373	gbeauche	1.8	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
374	gbeauche	1.6
375	gbeauche	1.32	#if HAVE_TEST_AND_SET
376			#define HAVE_SPINLOCKS 1
377	gbeauche	1.6	static inline void spin_lock(spinlock_t *lock)
378			{
379			while (testandset(lock));
380			}
381
382			static inline void spin_unlock(spinlock_t *lock)
383			{
384			*lock = 0;
385			}
386
387			static inline int spin_trylock(spinlock_t *lock)
388			{
389			return !testandset(lock);
390			}
391	gbeauche	1.32	#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	gbeauche	1.6	#endif
405
406	cebix	1.1	// Time data type for Time Manager emulation
407			#ifdef HAVE_CLOCK_GETTIME
408			typedef struct timespec tm_time_t;
409			#else
410			typedef struct timeval tm_time_t;
411			#endif
412
413	gbeauche	1.18	// Timing functions
414			extern uint64 GetTicks_usec(void);
415			extern void Delay_usec(uint32 usec);
416
417	gbeauche	1.38	#if defined(HAVE_PTHREADS) \|\| ((defined(__linux__) \|\| defined(__NetBSD__)) && defined(__powerpc__))
418	cebix	1.2	// Setup pthread attributes
419			extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
420	gbeauche	1.24	#endif
421	cebix	1.2
422	cebix	1.1	// Various definitions
423			typedef struct rgb_color {
424			uint8 red;
425			uint8 green;
426			uint8 blue;
427			uint8 alpha;
428			} rgb_color;
429
430	gbeauche	1.19	// X11 display fast locks
431			#ifdef HAVE_SPINLOCKS
432			#define X11_LOCK_TYPE spinlock_t
433			#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
434			#define XDisplayLock() spin_lock(&x_display_lock)
435			#define XDisplayUnlock() spin_unlock(&x_display_lock)
436			#elif defined(HAVE_PTHREADS)
437			#define X11_LOCK_TYPE pthread_mutex_t
438			#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
439			#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
440			#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
441			#else
442			#define XDisplayLock()
443			#define XDisplayUnlock()
444			#endif
445			#ifdef X11_LOCK_TYPE
446			extern X11_LOCK_TYPE x_display_lock;
447			#endif
448
449	cebix	1.1	// Macro for calling MacOS routines
450	gbeauche	1.34	#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
451			#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
452			#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
453			#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
454			#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
455			#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
456			#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)
457			#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)
458	cebix	1.1
459	gbeauche	1.3	#ifdef __cplusplus
460			extern "C" {
461			#endif
462			extern uint32 call_macos(uint32 tvect);
463			extern uint32 call_macos1(uint32 tvect, uint32 arg1);
464			extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
465			extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
466			extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
467			extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
468			extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
469			extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
470			#ifdef __cplusplus
471			}
472			#endif
473	cebix	1.1
474			#endif