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@gmx.net>
26 .\" Added description of mmap2
27 .\" Modified, 2004-11-25, mtk -- removed stray #endif in prototype
29 .TH MMAP2 2 2002-01-31 "Linux 2.3.31" "Linux Programmer's Manual"
31 mmap2 \- map files or devices into memory
33 .B #include <sys/mman.h>
35 .B #include <syscall.h>
39 .BI "_syscall6(void *, " mmap2 ", void *, " start ", size_t, " length ,
40 .BI "int, " prot ", int, " flags ", int, " fd ", off_t, " pgoffset )
42 .BI "void * mmap2(void *" start ", size_t " length ", int " prot ,
43 .BI "int " flags ", int " fd ", off_t " pgoffset );
47 operates in exactly the same way as
49 except that the final argument specifies the offset into the
50 file in units of the system page size (instead of bytes).
51 This enables applications that use a 32-bit
54 larger files (typically up to 2^44 bytes).
58 returns a pointer to the mapped area. On error \-1 is returned
65 Problem with getting the
70 is available since Linux 2.3.31.
71 It is Linux specific, and should be avoided in portable applications.
74 function that is part of the LFS (Large File Summit).