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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (C) 2003 Andi Kleen
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2004 Yuichi SATO
.\" all rights reserved.
.\" Translated 2004-06-08, Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated 2005-11-19, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\" Updated 2008-02-10, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.77
.\"
.TH ARCH_PRCTL 2 2007-12-26 "Linux" "Linux Programmer's Manual"
.SH ̾
arch_prctl \- ƥͭΥåɾ֤ꤹ
.SH
.nf
.B #include <asm/prctl.h>
.br
.B #include <sys/prctl.h>
.sp
.BI "int arch_prctl(int " code ", unsigned long *" addr );
.fi
.SH
.BR arch_prctl ()
ؿϥƥͭΥץ֤ޤϥåɾ֤ꤹ롣
.I code
ǽ
.I addr
ǽϤ
.I addr
ϡ"set" Ǥ
.I "unsigned long"
Ȥơ"get" Ǥ
.I "unsigned long *"
ȤƲᤵ롣
.LP
x86-64 ǽϰʲ̤:
.TP
.B ARCH_SET_FS
.I FS
쥸 64 ӥåȥ١
.I addr
ꤹ롣
.TP
.B ARCH_GET_FS
ߤΥåɤ
.I FS
쥸 64 ӥåȥ١ͤ
.I addr
ؤ
.I unsigned long
ΰ˳Ǽ롣
.TP
.B ARCH_SET_GS
.I GS
쥸 64 ӥåȥ١
.I addr
ꤹ롣
.TP
.B ARCH_GET_GS
ߤΥåɤ
.I GS
쥸 64 ӥåȥ١ͤ
.I addr
ؤ
.I unsigned long
ΰ˳Ǽ롣
.SH ֤
ȡ
.BR arch_prctl ()
0 ֤顼ξ硢\-1 ֤
.I errno
顼ͤꤹ롣
.SH 顼
.TP
.B EFAULT
.I addr
ޥåפ줿ɥ쥹ؤƤ뤫ץΥɥ쥹֤γˤ롣
.TP
.B EINVAL
.I code
ͭʥ֥ޥɤǤʤ
.TP
.B EPERM
.I addr
ץΥɥ쥹֤γˤ롣
.\" .SH
.\" man ڡ Andi Kleen ˤäƽ줿
.SH
.BR arch_prctl ()
Linux/x86-64 ĥǤꡢܿտޤץǤϻȤ٤Ǥʤ
.SH
.BR arch_prctl ()
ϸߤΤȤ Linux/x86-64 64 ӥåȥץǤΤߥݡȤƤ롣
32 ӥåȥȥ쥯ɤ줿硢
64 ӥåȥ١ѹ롣
.B ARCH_SET_GS
̵ˤƤ륫ͥ⤢롣
64 ӥåȥȥ١ΥƥȥåϡǤ롣
LDT
.BR modify_ldt (2)
ꤷƥȥ쥯Ȥ
(ͥ 2.5 ʹߤ)
.BR set_thread_area (2)
ƥॳȤȤˤꡢ
32 ӥåȥ١ꤹȤ®ؼʤ⤢롣
4GB 礭ʥ١ꤷˤΤߡ
.BR arch_prctl ()
ɬפǤ롣
ɥ쥹֤κǽ 2GB ˤϡ
.BR mmap (2)
.B MAP_32BIT
ե饰ꤷƳƤ뤳ȤǤ롣
С 2.7 Ǥϡglibc ˤ
.BR arch_prctl ()
Υץȥפʤ
ΤȤ桼ϼʬȤɬפ롣
Ͼ glibc ΥСǽ뤫⤷ʤ
.I FS
ϥåɥ饤֥Ǵ˻ȤƤ뤫⤷ʤ
.SH Ϣ
.BR mmap (2),
.BR modify_ldt (2),
.BR prctl (2),
.BR set_thread_area (2)
.sp
AMD X86-64 Programmer's manual
|
