Trying to understand the "METHOD"s in the .m files in the source tree.

F

Ferocious1881

I have been reading some FreeBSD 15.0-RELEASE source code and found some files which end in .m, apparently they generate some functions like TPM_TRANSIT, when having some bodyless function definition, but after trying and failing to understand the Makefile at the root of the FreeBSD source code, I have any idea of how such code works.
Do someone have any idea of this?
 
Code: 
$ awk -f /usr/src/sys/tools/makeobjops.awk
usage: makeobjops.awk <srcfile.m> [-d] [-p] [-l <nr>] [-c|-h]
where -c   produce only .c files
      -h   produce only .h files
      -p   use the path component in the source file for destination dir
      -l   set line width for output files [80]
      -d   switch on debugging
 
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