freebsd-nq/usr.sbin/kernbb/kernbb.8
Poul-Henning Kamp 6ff4cb0076 Do not output anything for source-files with no counts.
Output function name for the "pre-prologue" entry, by stealing
it from the next entry.
Output length of basic-block in bytes and product of executions
and length.
1997-08-14 10:36:02 +00:00

69 lines
2.7 KiB
Groff

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.\" $Id: kernbb.8,v 1.4 1997/02/22 16:06:05 peter Exp $
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.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 kernbb
.Sh DESCRIPTION
.Nm Kernbb
is a tool used to dump then 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 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 Poul-Henning Kamp, along with the kernel-support.