1 .\" Hey Emacs! This file is -*- nroff -*- source.
3 .\" Copyright (C) 2002, Michael Kerrisk
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25 .\" Modified 31 Jan 2002, Michael Kerrisk <mtk.manpages@gmail.com>
26 .\" Added description of mmap2
27 .\" Modified, 2004-11-25, mtk -- removed stray #endif in prototype
29 .\" Japanese Version Copyright (c) 2002 Yuichi SATO
30 .\" all rights reserved.
31 .\" Translated 2002-07-18, Yuichi SATO <ysato@h4.dion.ne.jp>
32 .\" Updated & Modified 2003-09-06, Yuichi SATO <ysato444@yahoo.co.jp>
33 .\" Updated 2006-01-18, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
34 .\" Updated 2007-09-07, Akihiro MOTOKI, LDP v2.64
36 .TH MMAP2 2 2008-04-22 "Linux" "Linux Programmer's Manual"
39 .\"O mmap2 \- map files or devices into memory
40 mmap2 \- ファイルやデバイスをメモリにマップする
44 .B #include <sys/mman.h>
46 .BI "void *mmap2(void *" addr ", size_t " length ", int " prot ,
47 .BI " int " flags ", int " fd ", off_t " pgoffset );
53 .\"O system call operates in exactly the same way as
59 .\"O except that the final argument specifies the offset into the
60 .\"O file in 4096-byte units (instead of bytes, as is done by
62 ただし最後の引き数には、ファイルのオフセットを
66 .\"O This enables applications that use a 32-bit
68 .\"O to map large files (up to 2^44 bytes).
71 を使うアプリケーションで (2^44 バイトまでの)
73 .\"O .SH "RETURN VALUE"
77 .\"O returns a pointer to the mapped area.
78 .\"O On error \-1 is returned and
80 .\"O is set appropriately.
91 .\"O Problem with getting the data from userspace.
92 ユーザ空間からデータを取得するときに問題があった。
95 .\"O (Various platforms where the page size is not 4096 bytes.)
97 .\"O is not a multiple of the system page size.
98 (ページサイズが 4096 バイトでないプラットフォームにおいて)
103 .\"O can return any of the same errors as
112 .\"O is available since Linux 2.3.31.
114 は、Linux 2.3.31 以降で使用可能である。
115 .\"O .SH "CONFORMING TO"
117 .\"O This system call is Linux-specific.
118 このシステムコールは Linux 独自である。
121 .\"O Nowadays, the glibc
123 .\"O wrapper function invokes this system call rather than the
130 システムコールではなく、このシステムコール
134 .\"O On ia64, the unit for
136 .\"O is actually the system page size, rather than 4096 bytes.
139 の単位は、実際にはシステムのページサイズであり、
141 .\" ia64 can have page sizes ranging from 4kB to 64kB.
142 .\" On cris, it looks like the unit might also be the page size,
143 .\" which is 8192 bytes. -- mtk, June 2007