[unix-history] / usr / man / man3 / end.3

.TH END 3 
.SH NAME
end, etext, edata \- last locations in program
.SH SYNOPSIS
.B extern end;
.br
.B extern etext;
.br
.B extern edata;
.SH DESCRIPTION
These names refer neither to routines
nor to locations with interesting contents.
The address of
.I etext
is the first address above the program text,
.I edata
above the initialized data region, and
.I end
above the uninitialized data region.
.PP
When execution begins, the program break
coincides with
.I end,
but resetting the program break by
the routines of
.IR brk (2),
.IR malloc (3), 
standard input/output
.RI ( stdio (3)),
the profile
.RB ( \-p )
option of 
.IR cc (1),
etc.
The current value of the program break
is reliably returned by `sbrk(0)',
see
.IR brk (2).
.SH "SEE ALSO"
brk(2), malloc(3)
Commit	Line	Data
de67e127 TL	1	.TH END 3
	2	.SH NAME
	3	end, etext, edata \- last locations in program
	4	.SH SYNOPSIS
	5	.B extern end;
	6	.br
	7	.B extern etext;
	8	.br
	9	.B extern edata;
	10	.SH DESCRIPTION
	11	These names refer neither to routines
	12	nor to locations with interesting contents.
	13	The address of
	14	.I etext
	15	is the first address above the program text,
	16	.I edata
	17	above the initialized data region, and
	18	.I end
	19	above the uninitialized data region.
	20	.PP
	21	When execution begins, the program break
	22	coincides with
	23	.I end,
	24	but resetting the program break by
	25	the routines of
	26	.IR brk (2),
	27	.IR malloc (3),
	28	standard input/output
	29	.RI ( stdio (3)),
	30	the profile
	31	.RB ( \-p )
	32	option of
	33	.IR cc (1),
	34	etc.
	35	The current value of the program break
	36	is reliably returned by `sbrk(0)',
	37	see
	38	.IR brk (2).
	39	.SH "SEE ALSO"
	40	brk(2), malloc(3)