mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 04:18:39 +08:00
21 lines
717 B
Bash
21 lines
717 B
Bash
|
#!/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)
|