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SubjectRe: linux-next: origin tree build failure
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Stephen Rothwell <sfr@canb.auug.org.au> wrote on 12/01/2010 00:58:05:
>
> Hi all,
>
> Today's linux-next build (powerpc ppc64_defconfig) failed like this:
>
> cc1: error: include/linux/autoconf.h: No such file or directory
>
> (while building the boot wrappers - lots more of the same)
>
> Caused by commit ac4c2a3bbe5db5fc570b1d0ee1e474db7cb22585 ("zlib:
> optimize inffast when copying direct from output"). autoconf.h moved
> from include/linux to include/generated in commit
> 264a26838056fc2d759f58bec2e720e01fcb1bdb ("kbuild: move autoconf.h to
> include/generated") which was in linux-next since 14 Dec 2009 and in
> Linus' tree since 18 Dec 2009.
>
> I added the following patch for today:
>
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Tue, 12 Jan 2010 10:23:43 +1100
> Subject: [PATCH] powerpc: fix boot Makefile for autoconf.h moving
>
> autoconf.h moved from include/linux to include/generated
>
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
> arch/powerpc/boot/Makefile | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
> index 826a30a..fb32a8e 100644
> --- a/arch/powerpc/boot/Makefile
> +++ b/arch/powerpc/boot/Makefile
> @@ -34,7 +34,7 @@ BOOTCFLAGS += -fno-stack-protector
> endif
>
> BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
> -BOOTCFLAGS += -include include/linux/autoconf.h -Iarch/powerpc/include
> +BOOTCFLAGS += -include include/generated/autoconf.h -Iarch/powerpc/include
> BOOTCFLAGS += -Iinclude
>
> DTS_FLAGS ?= -p 1024
> --
> 1.6.6
>
> However, this then produced these errors:
>
> arch/powerpc/boot/inffast.c:7:27: error: asm/unaligned.h: No such file or directory
> arch/powerpc/boot/inffast.c:8:27: error: asm/byteorder.h: No such file or directory
> arch/powerpc/boot/inffast.c: In function 'inflate_fast':
> arch/powerpc/boot/inffast.c:263: warning: implicit declaration of function
> 'get_unaligned'
> arch/powerpc/boot/inffast.c:277:2: error: #error __BIG_ENDIAN nor
> __LITTLE_ENDIAN is defined
>
> So I just reverted the original commit (after removing my fix above).
>
> This latter build problem is probably only noticed if you build with a
> separate object directory (i.e. with O=.. on the make command). The
> previous PowerPC maintainer tells me that defining __KERNEL__ in the
> BOOTFLAGS is wrong and should have been noticed.

I guess that the above problem will fixed by adding $(srctree):
BOOTCFLAGS += -include include/generated/autoconf.h -I$(srctree)/arch/powerpc/include
BOOTCFLAGS += -I$(srctree)/include

But what to do with the __KERNEL__ define. If it isn't allowed I
don't know what to do.

Jocke



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