3 # bnd_ifunc_2.sh -- test -z bndplt for x86_64
5 # Copyright (C) 2016 Free Software Foundation, Inc.
6 # Written by Cary Coutant <ccoutant@gmail.com>.
8 # This file is part of gold.
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.
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.
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,
27 if ! egrep "$1" "$2" >/dev/null 2>&1; then
28 echo 1>&2 "could not find '$1' in $2"
33 # Extract just the PLT portion of the disassembly.
36 sed -n -e '/^Disassembly of section .plt:/,/^Disassembly/p'
39 # Extract the addresses of the indirect jumps, omitting the PLT0 entry.
40 get_aplt_jmpq_addresses()
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/'
47 for APLT_ADDR in $(get_plt < bnd_ifunc_2.stdout | get_aplt_jmpq_addresses)
49 match "bnd (callq|jmpq) $APLT_ADDR" bnd_ifunc_2.stdout