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# 18:27:06 armlighter good evening...
# 18:27:50 armlighter when i want to build a toolchain, is it really necessary to download the whole kernel just for the headers?
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# 18:40:04 armlighter why can i only specify kernel headers <= 2.6.36?
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# 19:16:08 y_morin ar!) Yes we need the complete kernel to get headers, there is no separate download with just the headers. 2) The latest release is 1.18.0, and has kernel headers for linux 7.3
# 19:16:21 y_morin armlighter is gone, too bad. :-(
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# 21:53:12 lazzer What is the custom configuration file I can enter for eglibc?
# 21:54:42 y_morin lazzer: If you don't know, then you don't need it. ;-)
# 21:55:45 lazzer y_morin: I want to make eglibc smaller ;)
# 21:55:55 y_morin lazzer: Then, look at the help entry for 'Use custom configuration file'.
# 21:56:09 lazzer yeah, been there, but how do I create the config :S
# 21:56:30 y_morin lazzer: "The configuration file options are described in detail in the option-groups.def file in the eglibc source directory."
# 21:56:36 y_morin lazzer: have looked at that file?
# 21:57:10 lazzer y_morin: no
# 21:57:23 y_morin lazzer: Then you should. ;-)
# 21:57:28 y_morin lazzer: Here it is for you: http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/option-groups.def?revision=9803&view=markup
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# 21:58:20 lazzer y_morin: Do it require to use the trunke (to get the Kconfig patches)?
# 21:58:31 lazzer I am using version 2.17
# 22:00:14 y_morin lazzer: It's been suported in eglibc since eglibc-2.5
# 22:00:18 lazzer oh :D
# 22:00:23 lazzer will look at it, thanks :D
# 22:00:33 lazzer is very new to eglibc.. :)
# 22:00:42 lazzer just switching over from uClibc
# 22:01:30 y_morin lazzer: You won't gain much by configuring eglibc; it is far less customisable than uClibc.
# 22:01:41 y_morin lazzer: Why do you want to shrink it down?
# 22:02:00 lazzer y_morin: Limit space on flash
# 22:02:28 y_morin lazzer: A complete set of eglibc libs are roughly 2.5MiB. Are you that*
# 22:02:38 y_morin ... *that* short on space?
# 22:03:10 y_morin curses his keyboard's Return key that is too near the 'Del' key... :-(
# 22:05:05 lazzer y_morin: my image with eglibc is ~1.5MiB larger then the one with uClibc (compressed)
# 22:05:30 lazzer y_morin: and yes, 2.5 MiB is really big ;)
# 22:06:22 y_morin lazzer: That's not the question. The question is: how big is it compared to the rest of the filesystem image? 1% 10% 25% 50% ? If it's 1%, then there's no point in configuring it.
# 22:06:34 lazzer 12.5MiB total
# 22:06:34 y_morin lazzer: It's all about _relative_ size.
# 22:06:53 lazzer 500k free
# 22:07:02 y_morin lazzer: OK, roughly 20%. That the boundary at which it starts to make sense to optimise! ;-)
# 22:07:09 lazzer ;)
# 22:07:24 y_morin lazzer: Well, I never ever tried to configure eglibc. You're the first to ask!
# 22:07:49 lazzer y_morin: someone needs to be first :)
# 22:07:58 y_morin lazzer: yes! ;-)
# 22:08:11 y_morin lazzer: Any reason you can't stick with uClibc ?
# 22:08:29 y_morin is really trying hard to avoid theix eglibc-configury stuff! ;-)
# 22:08:34 lazzer y_morin: found this http://sourceware.org/ml/crossgcc/2012-10/msg00144.html
# 22:08:37 y_morin *this...
# 22:09:08 lazzer y_morin: Yes, we have had too many bugs that been related to *not* using standard C-library
# 22:10:26 lazzer y_morin: and we want to keep our PPC32 and ARMs in the same C-library.
# 22:11:15 y_morin lazzer: OK. Just trying the obvious. Then, Johannes' mail is a good starting point, I think.
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# 22:14:34 lazzer y_morin: will look into it tomorrow, doesnt look like it is possible to save that much though :(
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