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Date:   Wed, 6 Dec 2017 09:30:22 +0800
From:   "Liu, Changcheng" <changcheng.liu@...el.com>
To:     tglx@...utronix.de, gregkh@...uxfoundation.org,
        pombredanne@...b.com, neilb@...e.com, richard.weinberger@...il.com
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        changcheng.liu@...el.com
Subject: [PATCH] scripts/faddr2line: fix CROSS_COMPILE unset error

faddr2line hit var unbound error When CROSS_COMPILE
isn't set since nounset option is set in bash script.

Signed-off-by: Liu Changcheng <changcheng.liu@...el.com>
Reported-by: Richard Weinberger <richard.weinberger@...il.com>

diff --git a/scripts/faddr2line b/scripts/faddr2line
index 39e07d8..7721d5b 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -44,10 +44,10 @@
 set -o errexit
 set -o nounset
 
-READELF="${CROSS_COMPILE}readelf"
-ADDR2LINE="${CROSS_COMPILE}addr2line"
-SIZE="${CROSS_COMPILE}size"
-NM="${CROSS_COMPILE}nm"
+READELF="${CROSS_COMPILE:-}readelf"
+ADDR2LINE="${CROSS_COMPILE:-}addr2line"
+SIZE="${CROSS_COMPILE:-}size"
+NM="${CROSS_COMPILE:-}nm"
 
 command -v awk >/dev/null 2>&1 || die "awk isn't installed"
 command -v ${READELF} >/dev/null 2>&1 || die "readelf isn't installed"
-- 
2.7.4

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