Messages in this thread | | | Date | Thu, 6 Aug 2009 23:40:55 +0100 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH 4/6] Add support for LZO-compressed kernels for ARM |
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On Mon, Aug 03, 2009 at 04:58:19PM +0200, Albin Tonnerre wrote: > This is the second part of patch. This part includes: > - changes to ach/arch/boot/Makefile to make it easier to add new > compression types > - new piggy.lzo.S necessary for lzo compression > - changes in arch/arm/boot/compressed/misc.c to allow the use of lzo or > gzip, depending on the config > - Kconfig support
FYI, with these patches applied and selecting GZIP method, I get linker errors. I've been unable to track down what's going on, but it appears to be a libgcc issue.
In spite of the decompressor being built as an EABI object, gcc seems to be issuing calls to __umodsi3, which isn't in the EABI libgcc (they're called something different - don't ask.)
So I think these patches need further testing and evaluation on ARM before they can be merged. Moreover, I'd like to see some comparisons between the _current_ gzip method, the new gzip method and the lzo method on ARM.
I was going to get those numbers, but the platform I was going to run the tests on has died on me today.
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