500 lines
12 KiB
C
500 lines
12 KiB
C
/*
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* Wine porting definitions
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*
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* Copyright 1996 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_WINE_PORT_H
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#define __WINE_WINE_PORT_H
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#ifndef __WINE_CONFIG_H
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# error You must include config.h to use this header
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#endif
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#ifdef __WINE_BASETSD_H
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# error You must include port.h before all other headers
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#endif
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE /* for pread/pwrite, isfinite */
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#endif
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#include <fcntl.h>
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#include <math.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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/****************************************************************
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* Hard-coded values for the Windows platform
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*/
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#ifdef _WIN32
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#include <direct.h>
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#include <io.h>
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#include <process.h>
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#define mkdir(path,mode) mkdir(path)
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#ifdef _MSC_VER
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#define ftruncate chsize
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#ifndef isfinite
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# define isfinite(x) _finite(x)
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#endif
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#ifndef isinf
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# define isinf(x) (!(_finite(x) || _isnan(x)))
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#endif
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#ifndef isnan
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# define isnan(x) _isnan(x)
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#endif
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#define popen _popen
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#define pclose _pclose
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/* The UCRT headers in the Windows SDK #error out if we #define snprintf.
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* The C headers that came with previous Visual Studio versions do not have
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* snprintf. Check for VS 2015, which appears to be the first version to
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* use the UCRT headers by default. */
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#if _MSC_VER < 1900
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# define snprintf _snprintf
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#endif
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#define strtoll _strtoi64
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#define strtoull _strtoui64
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#define strncasecmp _strnicmp
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#define strcasecmp _stricmp
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typedef int mode_t;
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typedef long off_t;
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typedef int pid_t;
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typedef int ssize_t;
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#endif /* _MSC_VER */
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#else /* _WIN32 */
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#ifndef __int64
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# if defined(__x86_64__) || defined(__aarch64__) || defined(_WIN64)
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# define __int64 long
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# else
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# define __int64 long long
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# endif
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#endif
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#ifndef HAVE_ISFINITE
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int isfinite(double x);
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#endif
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#ifndef HAVE_ISINF
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int isinf(double x);
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#endif
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#ifndef HAVE_ISNAN
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int isnan(double x);
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#endif
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/* Process creation flags */
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#ifndef _P_WAIT
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# define _P_WAIT 0
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# define _P_NOWAIT 1
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# define _P_OVERLAY 2
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# define _P_NOWAITO 3
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# define _P_DETACH 4
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#endif
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#ifndef HAVE__SPAWNVP
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extern int _spawnvp(int mode, const char *cmdname, const char * const argv[]);
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#endif
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#endif /* _WIN32 */
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/****************************************************************
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* Type definitions
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*/
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#ifndef HAVE_FSBLKCNT_T
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typedef unsigned long fsblkcnt_t;
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#endif
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#ifndef HAVE_FSFILCNT_T
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typedef unsigned long fsfilcnt_t;
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#endif
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#ifndef HAVE_STRUCT_STATVFS_F_BLOCKS
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struct statvfs
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{
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unsigned long f_bsize;
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unsigned long f_frsize;
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fsblkcnt_t f_blocks;
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fsblkcnt_t f_bfree;
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fsblkcnt_t f_bavail;
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fsfilcnt_t f_files;
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fsfilcnt_t f_ffree;
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fsfilcnt_t f_favail;
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unsigned long f_fsid;
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unsigned long f_flag;
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unsigned long f_namemax;
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};
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#endif /* HAVE_STRUCT_STATVFS_F_BLOCKS */
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/****************************************************************
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* Macro definitions
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*/
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#ifdef HAVE_DLFCN_H
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#include <dlfcn.h>
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#else
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#define RTLD_LAZY 0x001
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#define RTLD_NOW 0x002
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#define RTLD_GLOBAL 0x100
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#endif
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#ifndef S_ISLNK
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# define S_ISLNK(mod) (0)
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#endif
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#ifndef S_ISSOCK
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# define S_ISSOCK(mod) (0)
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#endif
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#ifndef S_ISDIR
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# define S_ISDIR(mod) (((mod) & _S_IFMT) == _S_IFDIR)
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#endif
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#ifndef S_ISCHR
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# define S_ISCHR(mod) (((mod) & _S_IFMT) == _S_IFCHR)
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#endif
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#ifndef S_ISFIFO
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# define S_ISFIFO(mod) (((mod) & _S_IFMT) == _S_IFIFO)
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#endif
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#ifndef S_ISREG
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# define S_ISREG(mod) (((mod) & _S_IFMT) == _S_IFREG)
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#endif
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/* So we open files in 64 bit access mode on Linux */
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#ifndef O_LARGEFILE
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# define O_LARGEFILE 0
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#endif
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#ifndef O_NONBLOCK
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# define O_NONBLOCK 0
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#endif
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#ifndef O_BINARY
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# define O_BINARY 0
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#endif
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/****************************************************************
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* Constants
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*/
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifndef M_PI_2
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#define M_PI_2 1.570796326794896619
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#endif
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#ifndef INFINITY
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static inline float __port_infinity(void)
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{
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static const unsigned __inf_bytes = 0x7f800000;
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return *(const float *)&__inf_bytes;
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}
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#define INFINITY __port_infinity()
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#endif
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#ifndef NAN
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static inline float __port_nan(void)
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{
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static const unsigned __nan_bytes = 0x7fc00000;
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return *(const float *)&__nan_bytes;
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}
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#define NAN __port_nan()
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#endif
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/****************************************************************
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* Function definitions (only when using libwine_port)
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*/
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#ifndef NO_LIBWINE_PORT
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#ifndef HAVE_FSTATVFS
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int fstatvfs( int fd, struct statvfs *buf );
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#endif
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#ifndef HAVE_GETOPT_LONG_ONLY
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extern char *optarg;
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extern int optind;
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extern int opterr;
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extern int optopt;
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struct option;
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#ifndef HAVE_STRUCT_OPTION_NAME
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struct option
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{
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const char *name;
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int has_arg;
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int *flag;
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int val;
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};
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#endif
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extern int getopt_long (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind);
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extern int getopt_long_only (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind);
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#endif /* HAVE_GETOPT_LONG_ONLY */
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#ifndef HAVE_FFS
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int ffs( int x );
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#endif
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#ifndef HAVE_LLRINT
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__int64 llrint(double x);
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#endif
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#ifndef HAVE_LLRINTF
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__int64 llrintf(float x);
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#endif
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#ifndef HAVE_LRINT
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long lrint(double x);
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#endif
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#ifndef HAVE_LRINTF
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long lrintf(float x);
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#endif
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#ifndef HAVE_LSTAT
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int lstat(const char *file_name, struct stat *buf);
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#endif /* HAVE_LSTAT */
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#ifndef HAVE_POLL
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struct pollfd
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{
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int fd;
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short events;
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short revents;
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};
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#define POLLIN 0x01
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#define POLLPRI 0x02
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#define POLLOUT 0x04
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#define POLLERR 0x08
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#define POLLHUP 0x10
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#define POLLNVAL 0x20
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int poll( struct pollfd *fds, unsigned int count, int timeout );
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#endif /* HAVE_POLL */
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#ifndef HAVE_PREAD
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ssize_t pread( int fd, void *buf, size_t count, off_t offset );
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#endif /* HAVE_PREAD */
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#ifndef HAVE_PWRITE
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ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
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#endif /* HAVE_PWRITE */
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#ifndef HAVE_READLINK
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int readlink( const char *path, char *buf, size_t size );
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#endif /* HAVE_READLINK */
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#ifndef HAVE_RINT
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double rint(double x);
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#endif
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#ifndef HAVE_RINTF
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float rintf(float x);
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#endif
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#ifndef HAVE_STATVFS
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int statvfs( const char *path, struct statvfs *buf );
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#endif
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#ifndef HAVE_STRNLEN
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size_t strnlen( const char *str, size_t maxlen );
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#endif /* !defined(HAVE_STRNLEN) */
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#ifndef HAVE_SYMLINK
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int symlink(const char *from, const char *to);
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#endif
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#ifndef HAVE_USLEEP
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int usleep (unsigned int useconds);
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#endif /* !defined(HAVE_USLEEP) */
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extern int mkstemps(char *template, int suffix_len);
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/* Interlocked functions */
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#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
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static inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
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{
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int ret;
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__asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
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: "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
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return ret;
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}
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static inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
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{
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void *ret;
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#ifdef __x86_64__
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__asm__ __volatile__( "lock; cmpxchgq %2,(%1)"
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: "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
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#else
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__asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
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: "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
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#endif
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return ret;
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}
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static inline int interlocked_xchg( int *dest, int val )
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{
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int ret;
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__asm__ __volatile__( "lock; xchgl %0,(%1)"
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: "=r" (ret) : "r" (dest), "0" (val) : "memory" );
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return ret;
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}
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static inline void *interlocked_xchg_ptr( void **dest, void *val )
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{
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void *ret;
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#ifdef __x86_64__
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__asm__ __volatile__( "lock; xchgq %0,(%1)"
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: "=r" (ret) :"r" (dest), "0" (val) : "memory" );
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#else
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__asm__ __volatile__( "lock; xchgl %0,(%1)"
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: "=r" (ret) : "r" (dest), "0" (val) : "memory" );
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#endif
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return ret;
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}
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static inline int interlocked_xchg_add( int *dest, int incr )
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{
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int ret;
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__asm__ __volatile__( "lock; xaddl %0,(%1)"
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: "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
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return ret;
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}
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#ifdef __x86_64__
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static inline unsigned char interlocked_cmpxchg128( __int64 *dest, __int64 xchg_high,
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__int64 xchg_low, __int64 *compare )
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{
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unsigned char ret;
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__asm__ __volatile__( "lock cmpxchg16b %0; setz %b2"
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: "=m" (dest[0]), "=m" (dest[1]), "=r" (ret),
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"=a" (compare[0]), "=d" (compare[1])
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: "m" (dest[0]), "m" (dest[1]), "3" (compare[0]), "4" (compare[1]),
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"c" (xchg_high), "b" (xchg_low) );
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return ret;
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}
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#endif
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#else /* __GNUC__ */
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#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
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static inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
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{
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return __sync_val_compare_and_swap( dest, compare, xchg );
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}
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static inline int interlocked_xchg_add( int *dest, int incr )
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{
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return __sync_fetch_and_add( dest, incr );
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}
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static inline int interlocked_xchg( int *dest, int val )
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{
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int ret;
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do ret = *dest; while (!__sync_bool_compare_and_swap( dest, ret, val ));
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return ret;
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}
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#else
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extern int interlocked_cmpxchg( int *dest, int xchg, int compare );
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extern int interlocked_xchg_add( int *dest, int incr );
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extern int interlocked_xchg( int *dest, int val );
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#endif
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#if (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) && __SIZEOF_POINTER__ == 4) \
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|| (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) && __SIZEOF_POINTER__ == 8)
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static inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
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{
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return __sync_val_compare_and_swap( dest, compare, xchg );
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}
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static inline void *interlocked_xchg_ptr( void **dest, void *val )
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{
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void *ret;
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do ret = *dest; while (!__sync_bool_compare_and_swap( dest, ret, val ));
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return ret;
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}
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#else
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extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
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extern void *interlocked_xchg_ptr( void **dest, void *val );
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#endif
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#if defined(__x86_64__) || defined(__aarch64__) || defined(_WIN64)
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extern unsigned char interlocked_cmpxchg128( __int64 *dest, __int64 xchg_high,
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__int64 xchg_low, __int64 *compare );
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#endif
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#endif /* __GNUC__ */
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#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
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static inline __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare )
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{
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return __sync_val_compare_and_swap( dest, compare, xchg );
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}
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#else
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extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
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#endif
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#else /* NO_LIBWINE_PORT */
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#define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
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#define ffs __WINE_NOT_PORTABLE(ffs)
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#define fstatvfs __WINE_NOT_PORTABLE(fstatvfs)
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#define getopt_long __WINE_NOT_PORTABLE(getopt_long)
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#define getopt_long_only __WINE_NOT_PORTABLE(getopt_long_only)
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#define interlocked_cmpxchg __WINE_NOT_PORTABLE(interlocked_cmpxchg)
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#define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
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#define interlocked_xchg __WINE_NOT_PORTABLE(interlocked_xchg)
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#define interlocked_xchg_ptr __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
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#define interlocked_xchg_add __WINE_NOT_PORTABLE(interlocked_xchg_add)
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#define lstat __WINE_NOT_PORTABLE(lstat)
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#define pread __WINE_NOT_PORTABLE(pread)
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#define pwrite __WINE_NOT_PORTABLE(pwrite)
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#define statvfs __WINE_NOT_PORTABLE(statvfs)
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#define strnlen __WINE_NOT_PORTABLE(strnlen)
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#define usleep __WINE_NOT_PORTABLE(usleep)
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#endif /* NO_LIBWINE_PORT */
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#endif /* !defined(__WINE_WINE_PORT_H) */
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