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Re: Problems and workarounds while building octeon kernels

To: Andreas Barth <aba@not.so.argh.org>
Subject: Re: Problems and workarounds while building octeon kernels
From: David Daney <ddaney@caviumnetworks.com>
Date: Mon, 22 Feb 2010 13:24:32 -0800
Cc: linux-mips@linux-mips.org
In-reply-to: <20100220175125.GQ27216@mails.so.argh.org>
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References: <20100220175125.GQ27216@mails.so.argh.org>
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On 02/20/2010 09:51 AM, Andreas Barth wrote:
Hi,

I tried to build an recent linux 2.6.33-rc something in an unstable
Debian chroot. I had the following issues (plus workarounds / fixes) -
please don't hesitate to ask me if you have further questions.


I have a questions:

* Were you able to produce a *bootable* kernel after your workarounds?

* What did your make invocation look like?

The reason I ask it that you are using a compiler that defaults to little-endian and 32-bit. Unless you did something to override these defaults, I would be surprised if you obtained something bootable.

David Daney



error:
arch/mips/cavium-octeon/built-in.o: In function `prom_init':
(.init.text+0x974): undefined reference to `early_serial_setup'
arch/mips/cavium-octeon/built-in.o: In function `prom_init':
(.init.text+0x974): relocation truncated to fit: R_MIPS_26 against 
`early_serial_setup'
arch/mips/cavium-octeon/built-in.o: In function `flash_init':

fix: enabled configuration for serial console support


error:
flash_setup.c:(.init.text+0x12dc): undefined reference to `simple_map_init'
flash_setup.c:(.init.text+0x12dc): relocation truncated to fit: R_MIPS_26 
against `simple_map_init'
flash_setup.c:(.init.text+0x12ec): undefined reference to `do_map_probe'
flash_setup.c:(.init.text+0x12ec): relocation truncated to fit: R_MIPS_26 
against `do_map_probe'
flash_setup.c:(.init.text+0x1314): undefined reference to `parse_mtd_partitions'
flash_setup.c:(.init.text+0x1314): relocation truncated to fit: R_MIPS_26 
against `parse_mtd_partitions'
flash_setup.c:(.init.text+0x1330): undefined reference to `add_mtd_partitions'
flash_setup.c:(.init.text+0x1330): relocation truncated to fit: R_MIPS_26 
against `add_mtd_partitions'
flash_setup.c:(.init.text+0x1340): undefined reference to `add_mtd_device'
flash_setup.c:(.init.text+0x1340): relocation truncated to fit: R_MIPS_26 
against `add_mtd_device'

fix: set drivers/mtd to y (instead of m)



error:
arch/mips/cavium-octeon/built-in.o: In function `sched_clock':
(.text.sched_clock+0x24): undefined reference to `__lshrti3'
arch/mips/cavium-octeon/built-in.o: In function `sched_clock':
(.text.sched_clock+0x24): relocation truncated to fit: R_MIPS_26 against 
`__lshrti3'

workaround: in arch/mips/cavium-octeon/csrc-octeon.c
#if (__GNUC__<  4) || ((__GNUC__ == 4)&&  (__GNUC_MINOR__<= 3))
replaced by something that always uses "the ugly way"


ERROR: "i8253_lock" [drivers/input/misc/pcspkr.ko] undefined!
fix: disable pc speaker support


Cheers,
Andi




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