kldxref —
generate hints for the kernel
loader
kldxref |
[-Rdv] [-f
hintsfile] path ... |
The kldxref utility is used to generate
hint files which list modules, their version numbers, and the files that
contain them. These hints are used by the kernel loader to determine where
to find a particular KLD module.
A separate hint file is generated for each directory listed on the
command line that contains modules. If no hint records are generated for a
particular directory, no hint file is created, and the preexisting hint file
(if there was one in that directory) is removed.
kldxref only processes files that either
have no dots in their name like kernel or that end
in “.ko” like foo.ko.
The following options are available:
-R
- Recurse into subdirectories.
-d
- Do not generate a hint file, but print module metadata on standard
output.
-f
hintsfile
- Specify a different name for the hints files than
linker.hints.
-v
- Operate in verbose mode.
To build hint files for both standard and add-on modules:
kldxref /boot/kernel
/boot/modules
To build hint files for all installed kernels:
kldxref -R /boot
The kldxref utility first appeared in
FreeBSD 5.0.