1#!/bin/sh
2# Test for --list-tunables option ld.so.
3# Copyright (C) 2021-2022 Free Software Foundation, Inc.
4# This file is part of the GNU C Library.
5#
6# The GNU C Library is free software; you can redistribute it and/or
7# modify it under the terms of the GNU Lesser General Public
8# License as published by the Free Software Foundation; either
9# version 2.1 of the License, or (at your option) any later version.
10#
11# The GNU C Library is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14# Lesser General Public License for more details.
15#
16# You should have received a copy of the GNU Lesser General Public
17# License along with the GNU C Library; if not, see
18# <https://www.gnu.org/licenses/>.
19
20set -e
21
22rtld=$1
23test_wrapper_env=$2
24run_program_env=$3
25
26LC_ALL=C
27export LC_ALL
28
29# Unset tunables and their aliases.
30GLIBC_TUNABLES=
31MALLOC_ARENA_MAX=
32MALLOC_ARENA_TEST=
33MALLOC_CHECK_=
34MALLOC_MMAP_MAX_=
35MALLOC_MMAP_THRESHOLD_=
36MALLOC_PERTURB_=
37MALLOC_TOP_PAD_=
38MALLOC_TRIM_THRESHOLD_=
39
40${test_wrapper_env} \
41${run_program_env} \
42$rtld --list-tunables \
43| sort -u \
44| grep -E "(rtld|malloc)" \
45| sed -e "s/0xf\+/0x[f]+/"
46