of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / arch / powerpc / relocs_check.sh
blob2e4ebd0e25b3e84431335c8d2be07d9485af5078
1 #!/bin/sh
3 # Copyright © 2015 IBM Corporation
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License
7 # as published by the Free Software Foundation; either version
8 # 2 of the License, or (at your option) any later version.
10 # This script checks the relocations of a vmlinux for "suspicious"
11 # relocations.
13 # based on relocs_check.pl
14 # Copyright © 2009 IBM Corporation
16 if [ $# -lt 2 ]; then
17 echo "$0 [path to objdump] [path to vmlinux]" 1>&2
18 exit 1
21 # Have Kbuild supply the path to objdump so we handle cross compilation.
22 objdump="$1"
23 vmlinux="$2"
25 bad_relocs=$(
26 "$objdump" -R "$vmlinux" |
27 # Only look at relocation lines.
28 grep -E '\<R_' |
29 # These relocations are okay
30 # On PPC64:
31 # R_PPC64_RELATIVE, R_PPC64_NONE
32 # R_PPC64_ADDR64 mach_<name>
33 # On PPC:
34 # R_PPC_RELATIVE, R_PPC_ADDR16_HI,
35 # R_PPC_ADDR16_HA,R_PPC_ADDR16_LO,
36 # R_PPC_NONE
37 grep -F -w -v 'R_PPC64_RELATIVE
38 R_PPC64_NONE
39 R_PPC_ADDR16_LO
40 R_PPC_ADDR16_HI
41 R_PPC_ADDR16_HA
42 R_PPC_RELATIVE
43 R_PPC_NONE' |
44 grep -E -v '\<R_PPC64_ADDR64[[:space:]]+mach_'
47 if [ -z "$bad_relocs" ]; then
48 exit 0
51 num_bad=$(echo "$bad_relocs" | wc -l)
52 echo "WARNING: $num_bad bad relocations"
53 echo "$bad_relocs"
55 # If we see this type of relocation it's an idication that
56 # we /may/ be using an old version of binutils.
57 if echo "$bad_relocs" | grep -q -F -w R_PPC64_UADDR64; then
58 echo "WARNING: You need at least binutils >= 2.19 to build a CONFIG_RELOCATABLE kernel"