linux-kernel - [PATCH 2/2] scripts/link-vmlinux.sh: only filter kernel symbols for arm

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Date:	Wed, 13 Nov 2013 19:15:51 +0800
From:	Ming Lei <tom.leiming@...il.com>
To:	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Ming Lei <tom.leiming@...il.com>, <stable@...r.kernel.org>
Subject: [PATCH 2/2] scripts/link-vmlinux.sh: only filter kernel symbols for arm

Actually CONFIG_PAGE_OFFSET isn't same with PAGE_OFFSET, so
it isn't easy to figue out PAGE_OFFSET defined in header
file from scripts.

Because CONFIG_PAGE_OFFSET may not be defined in some ARCHs(
64bit ARCH), or defined as bogus value in !MMU case, so
this patch only applys the filter on ARM when CONFIG_PAGE_OFFSET
is defined as the original problem is only on ARM.

Cc: <stable@...r.kernel.org>
Cc: Rusty Russell <rusty@...tcorp.com.au>
Singed-off-by: Ming Lei <tom.leiming@...il.com>
---
 scripts/link-vmlinux.sh |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 32b10f5..2dcb377 100644
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -82,7 +82,9 @@ kallsyms()
 		kallsymopt="${kallsymopt} --all-symbols"
 	fi
 
-	kallsymopt="${kallsymopt} --page-offset=$CONFIG_PAGE_OFFSET"
+	if [ -n "${CONFIG_ARM}" ] && [ -n "${CONFIG_PAGE_OFFSET}" ]; then
+		kallsymopt="${kallsymopt} --page-offset=$CONFIG_PAGE_OFFSET"
+	fi
 
 	local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL}               \
 		      ${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}"
-- 
1.7.9.5

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