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