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8960e1bc83
"compiler.h" already includes a bunch of common include files. There is absolutely no reason to duplicate them in individual files, and in fact it robs us of central control of how these files are used. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2017 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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#ifndef NASMLIB_FILE_H
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#define NASMLIB_FILE_H
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#include "compiler.h"
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#include "nasmlib.h"
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#include "error.h"
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#include <errno.h>
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#ifdef HAVE_FCNTL_H
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# include <fcntl.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#endif
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#ifdef HAVE_IO_H
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# include <io.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_SYS_MMAN_H
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# include <sys/mman.h>
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#endif
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#if !defined(HAVE_ACCESS) && defined(HAVE__ACCESS)
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# define HAVE_ACCESS 1
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# define access _access
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#endif
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#ifndef R_OK
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# define R_OK 4 /* Classic Unix constant, same on Windows */
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#endif
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/* Can we adjust the file size without actually writing all the bytes? */
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#ifdef HAVE__CHSIZE_S
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# define nasm_ftruncate(fd,size) _chsize_s(fd,size)
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#elif defined(HAVE__CHSIZE)
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# define nasm_ftruncate(fd,size) _chsize(fd,size)
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#elif defined(HAVE_FTRUNCATE)
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# define nasm_ftruncate(fd,size) ftruncate(fd,size)
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#endif
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/*
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* On Win32/64, stat has a 32-bit file size but _stati64 has a 64-bit file
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* size. Things get complicated because some of these may be macros,
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* which autoconf won't pick up on as the standard autoconf tests do
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* #undef.
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*/
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#ifdef _stati64
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# define HAVE_STRUCT__STATI64 1
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# define HAVE__STATI64 1
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#endif
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#ifdef _fstati64
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# define HAVE__FSTATI64 1
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#endif
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#ifdef HAVE_STRUCT__STATI64
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typedef struct _stati64 nasm_struct_stat;
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# ifdef HAVE__STATI64
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# define nasm_stat _stati64
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# endif
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# ifdef HAVE__FSTATI64
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# define nasm_fstat _fstati64
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# endif
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#elif defined(HAVE_STRUCT_STAT)
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typedef struct stat nasm_struct_stat;
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# ifdef HAVE_STAT
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# define nasm_stat stat
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# endif
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# ifdef HAVE_FSTAT
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# define nasm_fstat fstat
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# endif
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#endif
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#ifndef HAVE_FILENO
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# ifdef fileno /* autoconf doesn't always pick up macros */
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# define HAVE_FILENO 1
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# elif defined(HAVE__FILENO)
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# define HAVE_FILENO 1
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# define fileno _fileno
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# endif
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#endif
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/* These functions are utterly useless without fileno() */
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#ifndef HAVE_FILENO
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# undef nasm_fstat
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# undef nasm_ftruncate
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# undef HAVE_MMAP
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# undef HAVE__FILELENGTHI64
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#endif
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#endif /* NASMLIB_FILE_H */
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