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.\" Copyright (c) 1983, 1991, 1993
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.\"
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.\" $FreeBSD$
.\"
.Dd May 22, 1995
.Dt KERNBB 8
.Os FreeBSD 2.1
.Sh NAME
.Nm kernbb
.Nd generate a dump of the kernels basic-block profile buffers
.Sh SYNOPSIS
.Nm
.Sh DESCRIPTION
.Nm Kernbb
is a tool used to dump the basic-block profiling buffers of the running
kernel.
.Pp
At least one source file in the running kernel must have been compiled
with the
.Fl a
option.
.Pp
The output format is
.Tn ASCII ,
consisting of one line per record with the
following fields: filename, linenumber, procedure, address, count
of executions, length of the basic-block in bytes and the product of
the previous two fields.
.Sh FILES
.Bl -tag -width /dev/kmemx -compact
.It Pa /kernel
the default system
.It Pa /dev/kmem
the default memory
.El
.Sh SEE ALSO
.Xr cc 1
.Sh AUTHORS
The
.Nm 
command was written by
.An Poul-Henning Kamp ,
along with the kernel-support.
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