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END.3
Upload User: jnzhq888
Upload Date: 2007-01-18
Package Size: 51694k
Code Size: 1k
Category:
OS Develop
Development Platform:
WINDOWS
- ." @(#)end.3 6.2 (Berkeley) 5/12/86
- ."
- .TH END 3 "May 12, 1986"
- .AT 3
- .SH NAME
- end, etext, edata - last locations in program
- .SH SYNOPSIS
- .nf
- .ft B
- extern int etext;
- extern int edata;
- extern int end, _end;
- .ft R
- .fi
- .SH DESCRIPTION
- These names refer neither to routines nor to locations with interesting
- contents. The address of
- .B etext
- is the first address above the program text,
- .B edata
- above the initialized data region, and
- .B end
- above the uninitialized data region.
- .B _end
- is the same as
- .BR end ,
- but in the implementers name space, i.e. for use in libraries.
- .PP
- When execution begins, the program break coincides with
- .BR end ,
- but it is reset by the routines
- .BR brk (2),
- .BR malloc (3),
- standard input/output
- .RB ( stdio (3)),
- etc.
- The current value of the program break is reliably returned by `sbrk(0)',
- see
- .BR brk (2).
- .SH "SEE ALSO"
- .BR brk (2),
- .BR malloc (3).