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35 .Nd generate a dump of the kernels basic-block profile buffers
41 utility is used to extract the basic-block profiling buffers of the running
42 kernel into the files needed for the
46 At least one source file in the running kernel must have been compiled
53 The output is stored in the filenames compiled into the kernel by
55 If the absolute pathname cannot be written to, the directory part
56 of the filename is discarded and the file stored in the current
57 directory under its basename.
59 The output files are named
63 program will extract the counts and merge them with the source
64 file to show actual execution counts.
66 .Bl -tag -width /boot/kernel/kernel -compact
67 .It Pa /boot/kernel/kernel
78 utility was written by
79 .An Poul-Henning Kamp ,
80 along with the kernel-support.
82 There are far too much magic and internal knowledge from GCC in this.