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054c37ca0c
macemu/SheepShaver/src/Unix/sysdeps.h
gbeauche 054c37ca0c Happy New Year!
2008-01-01 09:47:39 +00:00

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/*
* sysdeps.h - System dependent definitions for Linux
*
* SheepShaver (C) 1997-2008 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(NATMEM_OFFSET)
#define DIRECT_ADDRESSING 1
#else
#define REAL_ADDRESSING 1
#endif
// Always use the complete non-stubs Ethernet driver
#define USE_ETHER_FULL_DRIVER 1
#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 1
#define PPC_PROFILE_REGS_USE 0
#define KPX_MAX_CPUS 1
#if ENABLE_DYNGEN
#define PPC_ENABLE_JIT 1
#endif
#if defined(__i386__) || defined(__x86_64__)
#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
// Define if the host processor supports fast unaligned load/stores
#if defined __i386__ || defined __x86_64__
#define UNALIGNED_PROFITABLE 1
#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
#if 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 defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
// There is nothing to lock if we are not in an multithreaded environment
#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
/* Define codes for all the float formats that we know of.
* Though we only handle IEEE format. */
#define UNKNOWN_FLOAT_FORMAT 0
#define IEEE_FLOAT_FORMAT 1
#define VAX_FLOAT_FORMAT 2
#define IBM_FLOAT_FORMAT 3
#define C4X_FLOAT_FORMAT 4
// High-precision timing
#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
#define PRECISE_TIMING 1
#define PRECISE_TIMING_POSIX 1
#endif
// Timing functions
extern uint64 GetTicks_usec(void);
extern void Delay_usec(uint32 usec);
#ifdef HAVE_PTHREADS
// 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
#if 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);
#elif defined(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)
#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
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