Messages in this thread | | | From | Werner Almesberger <> | Subject | Re: Announce: initrd-tftp 0.1 | Date | Sun, 9 Jan 100 19:58:23 +0100 (MET) |
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Erik Andersen wrote: > Don't forget that when run as an initrd, it would have to be staticly > linked against libc and friends (making it at weigh in at about 300k), > or it has to be assembler -- very small but throwing out cross-platform > portability, and making it subject to kernel interface changes.
Or you just implement those few libc functions you really need. For an example, look at the micro-shell I once wrote for the linux-7k project, when I didn't even have a libc to link with: ftp://lrcftp.epfl.ch/pub/people/almesber/psion/ush-2.tar.gz
$ arm-linux-size ush.arm text data bss dec hex filename 1980 0 4 1984 7c0 ush.arm
Also, there are probably plenty of libc functions that don't pull in huge additional components, so you don't really have to do everything yourself.
- Werner
-- _________________________________________________________________________ / Werner Almesberger, ICA, EPFL, CH werner.almesberger@ica.epfl.ch / /_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/
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