OT: Vanilla not for embedded?! Re: Kernel 2.6 size increase - get_current()?
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Quoted 9 lines · Francois Romieu
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Patches to remove mandatory (for 2.2/2.0) PCI/IDE support were pretty
common too.
Patch to shrink network hashes - norm of life.
Patch to kill PCI names database.
And this is only things I was using personally (and I remember about)
in my short 4 years carrier.Would you mind publishing the patches ?
As I already answered privately - I do have them right now. And those patches were not mine.
Most of them was collected right on lkml or from digests on lwn.net.
[ I was playing only with network code - and I was concerned with
performance more, than with image size. And had no luck achiving something. ]
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CONFIG_TINY- http://lwn.net/Articles/14186/ - got something like
this merged? - so I'm the first guy in the download queue on ftp.kernel.org!See
CONFIG_EMBEDDED.
Okay. I have found it.
But I cannot find how it is used.
I have grepped thru 2.6.0-test0 - but I can find only entries in
defconfigs - but no mentions in .h/.c files.
What I'm missing?
And yes - this option doesn't work in 'make menuconfig'.
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For some reasons all "improvements" to kernel had lead to increase of
kernel size, not decrease. Strange, isn't it?No time for sarcasm here.
Correct me if I'm wrong.
I was just poking around 'small is beatiful'.
P.S. To my earlier 'far from vanilla' comment (-x '.*' - to skip .depend/.config/etc):
$ diff -urN -x '.*' ./linux-2.4.17 \
/opt/hardhat/devkit/lsp/ibm-walnut-ppc_405/linux-2.4.17_mvl21\
| wc -l
1128089
$
and more than 500 additional CONFIG_* parameters comparing to vanilla.Re: CONFIG_EMBEDDED in vanilla
Ihar Philips Filipau <[email protected]> :
[...]
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And those patches were not mine.
Testing/submitting/improving/syncing needs some generous amount of time. You can easily help the author (especially) when things don't evolve.
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[ I was playing only with network code - and I was concerned with
performance more, than with image size. And had no luck achiving something. ]
Try harder :o)
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I have grepped thru 2.6.0-test0 - but I can find only entries in
defconfigs - but no mentions in .h/.c files.
KConfig ?
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And yes - this option doesn't work in 'make menuconfig'.
No kernel tree at hand to figure what "doesn't work" mean but:
ed .config<<EOD
/# CONFIG_EMBEDDED is not set
d
wq
EOD
make oldconfig
works like a charm here.
If something seems wrong with 'make menuconfig', feel free to submit a detailled PR here or through bugzilla.kernel.org (as long as it isn't a networking thing).
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and more than 500 additional CONFIG_* parameters comparing to vanilla.
Provided the vendor can afford an army of kernel hackers to maintain it, it is fine.
No need to Cc: me, I am subscribed to l-k.
--
Ueimor