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. Link: http://lkml.kernel.org/r/20171206013022.GA83929@sofia Fixes: 95a8798 ("scripts/faddr2line: extend usage on generic arch") Signed-off-by: Liu Changcheng <[email protected]> Reported-by: Richard Weinberger <[email protected]> Reviewed-by: Richard Weinberger <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Philippe Ombredanne <[email protected]> Cc: NeilBrown <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
aosp-realm · Dec 15, 2017 · 4cc90b4 · 4cc90b4
1 parent 51f73ff
commit 4cc90b4
Showing 1 changed file with 4 additions and 4 deletions.
diff --git 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"