| brk.2 (21907) | brk.2 (23660) |
|---|---|
| 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 15 unchanged lines hidden (view full) --- 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" | 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 15 unchanged lines hidden (view full) --- 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" |
| 32.\" @(#)brk.2 8.2 (Berkeley) 12/11/93 | 32.\" @(#)brk.2 8.4 (Berkeley) 5/1/95 |
| 33.\" | 33.\" |
| 34.Dd December 11, 1993 | 34.Dd May 1, 1995 |
| 35.Dt BRK 2 36.Os BSD 4 37.Sh NAME 38.Nm brk , 39.Nm sbrk 40.Nd change data segment size 41.Sh SYNOPSIS 42.Fd #include <sys/unistd.h> --- 48 unchanged lines hidden (view full) --- 91.Em data 92segment; 93it will not be possible to set the break 94beyond the 95.Em rlim_max 96value returned from a call to 97.Xr getrlimit 2 , 98e.g. | 35.Dt BRK 2 36.Os BSD 4 37.Sh NAME 38.Nm brk , 39.Nm sbrk 40.Nd change data segment size 41.Sh SYNOPSIS 42.Fd #include <sys/unistd.h> --- 48 unchanged lines hidden (view full) --- 91.Em data 92segment; 93it will not be possible to set the break 94beyond the 95.Em rlim_max 96value returned from a call to 97.Xr getrlimit 2 , 98e.g. |
| 99.Dq qetext + rlp\(->rlim_max. | 99.Dq etext + rlp\(->rlim_max. |
| 100(see 101.Xr end 3 102for the definition of 103.Em etext ) . 104.Sh RETURN VALUES 105.Fn Brk 106returns 0 if successful; 107otherwise -1 with 108.Va errno 109set to indicate why the allocation failed. 110The 111.Fn sbrk 112function returns a pointer to the base of the new storage if successful; 113otherwise -1 with 114.Va errno 115set to indicate why the allocation failed. 116.Sh ERRORS | 100(see 101.Xr end 3 102for the definition of 103.Em etext ) . 104.Sh RETURN VALUES 105.Fn Brk 106returns 0 if successful; 107otherwise -1 with 108.Va errno 109set to indicate why the allocation failed. 110The 111.Fn sbrk 112function returns a pointer to the base of the new storage if successful; 113otherwise -1 with 114.Va errno 115set to indicate why the allocation failed. 116.Sh ERRORS |
| 117.Fn Sbrk | 117.Fn Brk 118or 119.Fn sbrk |
| 118will fail and no additional memory will be allocated if 119one of the following are true: 120.Bl -tag -width [ENOMEM] 121.It Bq Er ENOMEM 122The limit, as set by 123.Xr setrlimit 2 , 124was exceeded. 125.It Bq Er ENOMEM --- 22 unchanged lines hidden --- | 120will fail and no additional memory will be allocated if 121one of the following are true: 122.Bl -tag -width [ENOMEM] 123.It Bq Er ENOMEM 124The limit, as set by 125.Xr setrlimit 2 , 126was exceeded. 127.It Bq Er ENOMEM --- 22 unchanged lines hidden --- |