plan9 man page for segbrk

SEGBRK(2)							System Calls Manual							 SEGBRK(2)

NAME
       segbrk - change memory allocation

SYNOPSIS
       #include <u.h>
       #include <libc.h>

       int   segbrk(void *saddr, void *addr)

DESCRIPTION
       Segbrk  sets the system's idea of the lowest unused location of a segment to addr rounded up to the next multiple of a page size, typically
       4096 bytes.  The segment is identified by saddr which may be any valid address within the segment.

       A call to segbrk with a zero addr argument returns the address of the top of bss.

       The system will prevent segments from overlapping and will not allow the length of the text, data, or stack segment to be altered.

SOURCE
       /sys/src/libc/9syscall

SEE ALSO
       brk(2), segattach(2), segflush(2)
       /proc/*/segment

DIAGNOSTICS
       Sets errstr.

																	 SEGBRK(2)