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7a0c0a14 CC |
1 | #!/bin/sh |
2 | ||
3 | # bnd_plt_1.sh -- test -z bndplt for x86_64 | |
4 | ||
82704155 | 5 | # Copyright (C) 2016-2019 Free Software Foundation, Inc. |
7a0c0a14 CC |
6 | # Written by Cary Coutant <ccoutant@gmail.com>. |
7 | ||
8 | # This file is part of gold. | |
9 | ||
10 | # This program is free software; you can redistribute it and/or modify | |
11 | # it under the terms of the GNU General Public License as published by | |
12 | # the Free Software Foundation; either version 3 of the License, or | |
13 | # (at your option) any later version. | |
14 | ||
15 | # This program is distributed in the hope that it will be useful, | |
16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | # GNU General Public License for more details. | |
19 | ||
20 | # You should have received a copy of the GNU General Public License | |
21 | # along with this program; if not, write to the Free Software | |
22 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
23 | # MA 02110-1301, USA. | |
24 | ||
25 | match() | |
26 | { | |
27 | if ! egrep "$1" "$2" >/dev/null 2>&1; then | |
28 | echo 1>&2 "could not find '$1' in $2" | |
29 | exit 1 | |
30 | fi | |
31 | } | |
32 | ||
33 | # Extract just the PLT portion of the disassembly. | |
34 | get_plt() | |
35 | { | |
36 | sed -n -e '/^Disassembly of section .plt:/,/^Disassembly/p' | |
37 | } | |
38 | ||
39 | # Extract the addresses of the indirect jumps, omitting the PLT0 entry. | |
40 | get_aplt_jmpq_addresses() | |
41 | { | |
42 | sed -n -e '/_GLOBAL_OFFSET_TABLE_+0x10/d' \ | |
43 | -e '/bnd jmpq \*0x[0-9a-f]*(%rip)/p' | | |
44 | sed -e 's/ *\([0-9a-f]*\):.*/\1/' | |
45 | } | |
46 | ||
47 | match 'bnd jmpq \*0x[0-9a-f]*\(%rip\) *# [0-9a-f]* <_GLOBAL_OFFSET_TABLE_\+0x10>' bnd_plt_1.stdout | |
48 | ||
49 | for APLT_ADDR in $(get_plt < bnd_ifunc_2.stdout | get_aplt_jmpq_addresses) | |
50 | do | |
51 | match "bnd (callq|jmpq) $APLT_ADDR" bnd_ifunc_2.stdout | |
52 | done |