redhat-rpm-config/brp-strip-comment-note

#!/bin/sh
# If using normal root, avoid changing anything.
if [ -z "$RPM_BUILD_ROOT" -o "$RPM_BUILD_ROOT" = "/" ]; then
	exit 0
fi

[ -z "$STRIP" -a -n "$1" ] && STRIP="$1"
[ -z "$OBJDUMP" -a -n "$2" ] && OBJDUMP="$2"
[ -z "$STRIP" ] && STRIP=strip
[ -z "$OBJDUMP" ] && OBJDUMP=objdump

# Strip .comment and .note sections (the latter only if it is not allocated)
# for already stripped elf files in the build root
for f in `find $RPM_BUILD_ROOT -type f \( -perm -0100 -or -perm -0010 -or -perm -0001 \) -exec file {} \; | \
        grep -v "^${RPM_BUILD_ROOT}/\?usr/lib/debug"  | \
	sed -n -e 's/^\(.*\):[ 	]*ELF.*, stripped/\1/p'`; do
	note="-R .note"
	if $OBJDUMP -h $f | grep '^[ 	]*[0-9]*[ 	]*.note[ 	]' -A 1 | \
		grep ALLOC >/dev/null; then
		note=
	fi
	$STRIP -R .comment $note "$f" || :
done