linux-kernel - Re: [PATCH 5/6] kbuild: Use single pass kallsyms

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Message-ID: <20140208160143.GF12219@tassilo.jf.intel.com>
Date:	Sat, 8 Feb 2014 08:01:43 -0800
From:	Andi Kleen <ak@...ux.intel.com>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:	mmarek@...e.cz, linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 5/6] kbuild: Use single pass kallsyms

> diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
> index 4c5435f420a6..06469556c580 100644
> --- a/scripts/link-vmlinux.sh
> +++ b/scripts/link-vmlinux.sh
> @@ -213,7 +213,7 @@ if [ -n "${CONFIG_KALLSYMS}" ] ; then
>  
>  	info PATCHFILE vmlinux
>  	OFF=$(${OBJDUMP} --section-headers vmlinux |
> -	     gawk -f ./source/scripts/elf_file_offset \
> +	     gawk -f ./scripts/elf_file_offset \

I think that would break with object dirs (which was what I used),
because the scripts there only has some executables.

Really need ${srcdir}, but it would need to be exported first.

This should work:


diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 4c5435f..5f0ae1a 100644
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -212,8 +212,10 @@ if [ -n "${CONFIG_KALLSYMS}" ] ; then
 	${OBJCOPY} -O binary .tmp_kallsyms2.o .tmp_kallsyms2.bin
 
 	info PATCHFILE vmlinux
+	EF=scripts/elf_file_offset
+	if [ ! -r $EF ] ; then EF=source/$EF ; fi
 	OFF=$(${OBJDUMP} --section-headers vmlinux |
-	     gawk -f ./source/scripts/elf_file_offset \
+	     gawk -f $EF \
 	-v section=.kallsyms -v filesize=$(stat -c%s .tmp_kallsyms2.bin) )
 	if [ -z "$OFF" ] ; then
 		echo "Cannot find .kallsyms section in vmlinux binary"




-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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