elf/tst-rtld-list-tunables.sh

   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
  20 set -e
  21
  22 rtld=$1
  23 test_wrapper_env=$2
  24 run_program_env=$3
  25
  26 LC_ALL=C
  27 export LC_ALL
  28
  29 # Unset tunables and their aliases.
  30 GLIBC_TUNABLES=
  31 MALLOC_ARENA_MAX=
  32 MALLOC_ARENA_TEST=
  33 MALLOC_CHECK_=
  34 MALLOC_MMAP_MAX_=
  35 MALLOC_MMAP_THRESHOLD_=
  36 MALLOC_PERTURB_=
  37 MALLOC_TOP_PAD_=
  38 MALLOC_TRIM_THRESHOLD_=
  39
  40 ${test_wrapper_env} \
  41 ${run_program_env} \
  42 $rtld --list-tunables \
  43 | sort -u \
  44 | egrep "(rtld|malloc)" \
  45 | sed -e "s/0xf\+/0x[f]+/"