Re: Kernel build fail with "Circular xxxx <- xxxx dependency dropped"

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On Wed, Jun 11, 2014 at 10:24:24AM +0200, Michal Marek wrote:
> Dne 11.6.2014 08:02, Mike Qiu napsal(a):
> > make[1]: Circular arch/powerpc/boot/zImage.lds.S <-
> > arch/powerpc/boot/zImage.lds dependency dropped.
> > make[1]: Circular arch/powerpc/boot/zImage.coff.lds.S <-
> > arch/powerpc/boot/zImage.lds dependency dropped.
> > make[1]: Circular arch/powerpc/boot/zImage.coff.lds.S <-
> > arch/powerpc/boot/zImage.coff.lds dependency dropped.
> > make[1]: Circular arch/powerpc/boot/zImage.ps3.lds.S <-
> > arch/powerpc/boot/zImage.lds dependency dropped.
> > make[1]: Circular arch/powerpc/boot/zImage.ps3.lds.S <-
> > arch/powerpc/boot/zImage.coff.lds dependency dropped.
> > make[1]: Circular arch/powerpc/boot/zImage.ps3.lds.S <-
> > arch/powerpc/boot/zImage.ps3.lds dependency dropped.
> >   WRAP    arch/powerpc/boot/zImage.ps3.lds.S
> > INFO: Uncompressed kernel (size 0x14d0db8) overlaps the address of the
> > wrapper(0x400000)
> > INFO: Fixing the link_address of wrapper to (0x1500000)
> > ld: cannot open linker script file arch/powerpc/boot/zImage.lds: No such
> > file or directory
> > make[1]: *** [arch/powerpc/boot/zImage.ps3.lds.S] Error 1
> > make: *** [zImage] Error 2
> > make: *** Waiting for unfinished jobs....
> >   MODPOST 1853 modules
> > 
> > I use git bisect to find out the possible commits to lead this problem:
> > 7e1c04779efd51154baf652e653ceb24ce68939b kbuild: Use relative path for
> > $(objtree)
> > 890676c65d699db3ad82e7dddd0cf8fb449031af kbuild: Use relative path when
> > building in the source tree
> > 9da0763bdd82572be243fcf5161734f11568960f kbuild: Use relative path when
> > building in a subdir of the source tree
> 
> Thanks for the report, I'll have a look. If I do not come up with a
> solution soon, I'll revert the series.

I have yet to test this, but can you try the patch below?

Thanks!
Michal


>From 7f8336f4c7f2131efbe82543580dda3ec1988609 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@xxxxxxx>
Date: Wed, 11 Jun 2014 13:53:48 +0200
Subject: [PATCH] powerpc: Avoid circular dependency with zImage.%

The rule to create the final images uses a zImage.% pattern.
Unfortunately, this also matches the names of the zImage.*.lds linker
scripts, which appear as a dependency of the final images. This somehow
worked when $(srctree) used to be an absolute path, but now the pattern
matches too much. List only the images from $(image-y) as the target of
the rule, to avoid the circular dependency.

Signed-off-by: Michal Marek <mmarek@xxxxxxx>
---
 arch/powerpc/boot/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 426dce7..c60992c 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -333,7 +333,7 @@ $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
 	$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
 
-$(obj)/zImage.%: vmlinux $(wrapperbits)
+$(addprefix $(obj)/, $(filter zImage.%, $(image-y))): vmlinux $(wrapperbits)
 	$(call if_changed,wrap,$*)
 
 # dtbImage% - a dtbImage is a zImage with an embedded device tree blob
-- 
1.9.2

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