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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (c) 1993 Michael Haardt
.\" (michael@moria.de),
.\" Fri Apr 2 11:32:09 MET DST 1993
.\"
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\"
.\" The GNU General Public License's references to "object code"
.\" and "executables" are to be interpreted as the output of any
.\" document formatting or typesetting system, including
.\" intermediate and printed output.
.\"
.\" This manual is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
.\" License along with this manual; if not, write to the Free
.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
.\" USA.
.\"
.\" Modified Wed Jul 21 19:52:58 1993 by Rik Faith <faith@cs.unc.edu>
.\" Modified Sun Aug 21 17:40:38 1994 by Rik Faith <faith@cs.unc.edu>
.\"
.\" Japanese Version Copyright (c) 1996 TABATA Tomohira
.\" all rights reserved.
.\" Translated Wed Jun 26 19:12:54 JST 1996
.\" by TABATA Tomohira <loba@k2.t.u-tokyo.ac.jp>
.\" Modified Sat Dec 13 23:43:56 JST 1997
.\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\" Updated & Modified Wed May 19 01:55:29 JST 2004
.\" by Yuichi SATO <ysato444@yahoo.co.jp>
.\"
.TH BRK 2 2003-11-01 "Linux 2.4" "Linux Programmer's Manual"
.SH ̾
brk, sbrk \- ǡȤΥѹ
.SH
.B #include <unistd.h>
.sp
.BI "int brk(void *" end_data_segment );
.sp
.BI "void *sbrk(intptr_t " increment );
.SH
.B brk
ϡǡ (data segment) κǸ
.I end_data_segment
ǻꤷͤꤹ롣
ƥबʬʥ
ץΥǡκͤĶƤʤСͤͭǤ롣
.RB ( setrlimit (2)
)
.B sbrk
ϡץΥǡ֤
.I increment
ХȤ䤹
.B sbrk
ϡƥࡦǤϤʤC 饤֥ˤåѡ (wrapper) Ǥ롣
.B sbrk
increment 0 ˤƸƤӽФȤˤꡢ
ץθߤΥ֥졼 (break) Τ뤿˻ѤǤ롣
.SH ֤
硢
.B brk
0 ֤
.B sbrk
ϿΰƬؤΥݥ֤
顼ξˤϡ
\-1 ֤
.I errno
.B ENOMEM
ꤹ롣
.SH
BSD 4.3
.BR brk " " sbrk
C (C Standard) ˤƤʤ
ޤ POSIX.1 ʤϰտŪ˽Ƥ ( B.1.1.1.3, B.8.3.3 )
.SH
ʥƥˤơ
.BR sbrk ()
ΰ͡ʷȤƤ롣
ŪʤΤ \fBint\fP, \fBssize_t\fP, \fBptrdiff_t\fP, \fBintptr_t\fP Ǥ롣
.\" \fBint\fP (Ȥ XPGv4, DU 4.0, HP-UX 11, FreeBSD 4.0, OpenBSD 3.2),
.\" \fBssize_t\fP (OSF1 2.0, Irix 5.3, 6.5),
.\" \fBptrdiff_t\fP (libc4, libc5, ulibc, glibc2.0, 2.1),
.\" \fBintptr_t\fP (Ȥ XPGv5, AIX, SunOS 5.8, 5.9, FreeBSD 4.7,
.\" NetBSD 1.6, Tru64 5.1, glibc2.2).
.\" ȤΤʬ
XPGv6 ǤϡδؿѤ줿 (obsolete) ȤƤ롣
.SH Ϣ
.BR execve (2),
.BR getrlimit (2),
.BR malloc (3)
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