Commit | Line | Data |
---|---|---|
47981b5c AG |
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 | ||
8 | objdump="$1" | |
9 | nm="$2" | |
10 | vmlinux="$3" | |
11 | ||
12 | # Remove from the possible bad relocations those that match an undefined | |
13 | # weak symbol which will result in an absolute relocation to 0. | |
14 | # Weak unresolved symbols are of that form in nm output: | |
15 | # " w _binary__btf_vmlinux_bin_end" | |
16 | undef_weak_symbols=$($nm "$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) |