1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0-or-later 3 4# Get a list of all the relocations, remove from it the relocations 5# that are known to be legitimate and return this list to arch specific 6# script that will look for suspicious relocations. 7 8objdump="$1" 9nm="$2" 10vmlinux="$3" 11 12# Remove from the possible bad relocations those that match an undefined 13# weak symbol which will result in an absolute relocation to 0. 14# Weak unresolved symbols are of that form in nm output: 15# " w _binary__btf_vmlinux_bin_end" 16undef_weak_symbols=$($nm "$vmlinux" | awk '$1 ~ /w/ { print $2 }') 17 18$objdump -R "$vmlinux" | 19 grep -E '\<R_' | 20 ([ "$undef_weak_symbols" ] && grep -F -w -v "$undef_weak_symbols" || cat) 21