1/* Bug 20419: test for stack overflow in elf/dl-load.c open_verify()
2   Copyright (C) 2018-2021 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   The GNU C Library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License as published by the Free Software Foundation; either
8   version 2.1 of the License, or (at your option) any later version.
9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, see
17   <https://www.gnu.org/licenses/>.  */
18
19/* This creates a .so with 8MiB PT_NOTE segment.
20   On a typical Linux system with 8MiB "ulimit -s", that was enough
21   to trigger stack overflow in open_verify.  */
22
23#define NOTE_SIZE 8*1024*1024
24
25.pushsection .note.big,"a"
26	.balign 4
27	.long 5 		/* n_namesz.  Length of "GLIBC".  */
28	.long NOTE_SIZE		/* n_descsz.  */
29	.long 0			/* n_type.  */
30	.ascii "GLIBC\0\0\0"	/* Name and alignment to four bytes.  */
31	.fill NOTE_SIZE, 1, 0
32.popsection
33