2011/12/29 Michal Marek <[email protected]>: > Dne 29.12.2011 16:50, Lucas De Marchi napsal(a): >> Add target in Makefile to compress the module after it's installed. >> Module-init-tools and libkmod can handle gzipped modules. > > I am not convinced that this is a needed feature. Compressing elf files > means that depmod and modinfo need to read the whole compressed file > from disk and unpack it, while only a couple of bytes need to be read. > Those concerned about disk space either compile only the few needed > modules and/or use some compressed filesystem, which allows for random > access. > > >> This is not much useful for distributions because the package will gzip >> the modules and call depmod in a install rule. However for those >> compiling the kernel on their own and debugging module loading, it's >> useful so depmod doesn't have to be called twice and we don't have to >> manually compress the modules. > > I understand that you need *.ko.gz support in kmod for the sake of > feature parity and that such patch would help you with debugging. But I > doubt there is use for it apart of developing kmod. Wouldn't an external > script like this do the same job for you? > > #!/bin/sh > make "$@" modules_install > rel="$(make -s "$@" kernelrelease)" > find "/lib/modules/$rel" -name '*.ko' -exec gzip '{}' ';' > depmod "$rel"
Sure, but it has the same problem of running depmod twice. I was thinking that compressed modules might be useful for others, not developing kmod. At least I know Archlinux uses gzipped modules by default and probably gentoo guys, too. Lucas De Marchi -- To unsubscribe from this list: send the line "unsubscribe linux-modules" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
