Bug 177541 – Compile genkernel with uclibc (and save 300 kB in initramfs)

• Status: RESOLVED WONTFIX
• Product: Gentoo Hosted Projects

[Description Dick Marinus 2007-05-07 19:26:09 UTC]

Hi Folks,

I've created some fixes for genkernel so it can compile module-init-tools and busybox with uclibc. crossdev is required to create a uclibc toolchain.

The main advantage is a smaller initramfs.

Usage:

genkernel --arch-override=x86uc initrd

[Comment 1 Dick Marinus 2007-05-07 19:26:44 UTC]

Created attachment 118478 [details]
gen_initramfs.sh

[Comment 2 Dick Marinus 2007-05-07 19:27:07 UTC]

Created attachment 118480 [details]
gen_compile.sh

[Comment 3 Dick Marinus 2007-05-07 19:27:40 UTC]

Created attachment 118481 [details]
x86uc/busy-config

[Comment 4 Dick Marinus 2007-05-07 19:27:56 UTC]

Created attachment 118482 [details]
x86uc/config.sh

[Comment 5 Petteri Räty (RETIRED) 2007-05-07 21:31:12 UTC]

Please attach patches instead of full files.

[Comment 6 Dick Marinus 2007-05-08 15:55:17 UTC]

Created attachment 118563 [details, diff]
gen_initramfs.sh.patch

[Comment 7 Dick Marinus 2007-05-08 15:56:20 UTC]

Created attachment 118565 [details, diff]
gen_compile.sh.patch

[Comment 8 Andrew Gaffney (RETIRED) 2007-08-13 22:39:15 UTC]

There are a few problems with this. First, your code is hardcoded for x86/i686. Second, uclibc doesn't currently work on all arches that genkernel works on (for example, ld.so for sparc is b0rked last time I checked). Third, the static insmod stuff is gone from genkernel SVN.

[Comment 9 Andrew Gaffney (RETIRED) 2007-11-17 02:55:52 UTC]

The patches as provided are unusable (due to the hard-coding of i686 and part of the code they apply against no longer being in SVN). Your method also requires using a cross-toolchain to compile busybox against uclibc, which is an unacceptable requirement. There is no way any of this can go in.