tests/cp/link-heap.sh

   1 #!/bin/sh
   2 # ensure that cp --preserve=link --link doesn't waste heap
   3
   4 # Copyright (C) 2008-2024 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program 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
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ cp
  21 expensive_
  22
  23 # Determine basic amount of memory needed for 'cp -al'.
  24 touch f || framework_failure_
  25 vm=$(get_min_ulimit_v_ cp -al f f2) \
  26   || skip_ 'shell lacks ulimit, or ASAN enabled'
  27 rm f f2 || framework_failure_
  28
  29 a=$(printf %031d 0)
  30 b=$(printf %031d 1)
  31 (mkdir $a \
  32    && cd $a \
  33    && seq --format=%031g 10000 |xargs touch \
  34    && seq --format=d%030g 10000 |xargs mkdir ) || framework_failure_
  35 cp -al $a $b || framework_failure_
  36 mkdir e || framework_failure_
  37 mv $a $b e || framework_failure_
  38
  39 # Allow cp(1) to use 4MiB more virtual memory than for the above trivial case.
  40 (ulimit -v $(($vm+4000)) && cp -al e f) || fail=1
  41
  42 Exit $fail