linux-kernel - Re: [PATCH v3 2/4] Add support for LZO-compressed kernels for ARM

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Date:	Fri, 13 Nov 2009 15:29:17 +0100
From:	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
To:	Martin Michlmayr <tbm@...ius.com>
Cc:	Albin Tonnerre <albin.tonnerre@...e-electrons.com>,
	akpm@...ux-foundation.org, hpa@...or.com, rmk@....linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/4] Add support for LZO-compressed kernels for ARM

* Martin Michlmayr | 2009-11-12 12:59:38 [+0000]:

>* Albin Tonnerre <albin.tonnerre@...e-electrons.com> [2009-11-11 13:27]:
>> 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
>> +
>> +# For __aeabi_uidivmod
>> +lib1funcs = $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.o
>
>I build my kernel in a different directory to where the sources are
>stored and I get:
>
>make[7]: *** No rule to make target `/home/tbm/kernel/linux-2.6-2.6.32~rc6/debian/build/source_armel_none/arch/arm/lib/lib1funcs.o', needed by `arch/arm/boot/compressed/vmlinux'.  Stop.
>
>The following patch makes it compile for me:
>
>--- a/arm/boot/compressed/Makefile	2009-11-12 12:26:47.000000000 +0000
>+++ b/arm/boot/compressed/Makefile	2009-11-12 12:26:58.000000000 +0000
>@@ -101,7 +101,7 @@
> LDFLAGS_vmlinux += -T
> 
> # For __aeabi_uidivmod
>-lib1funcs = $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.o
>+lib1funcs = arch/$(SRCARCH)/lib/lib1funcs.o

+lib1funcs = $(obj)/arch/$(SRCARCH)/lib/lib1funcs.o

This is untested but it should refer to obj because you break out of
tree builds (O=) if you don't :)

> 
> # Don't allow any static data in misc.o, which
> # would otherwise mess up our GOT table
>
>-- 
>Martin Michlmayr
>http://www.cyrius.com/

Sebastian
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