RunToolSafely.sh

   1 #!/bin/sh
   2
   3 set -eu
   4
   5 if [ $# -lt 2 ]; then
   6   echo "usage: $0 <timeout> <program> <args...>"
   7   echo
   8   echo "  This script simply runs another program under ulimit and always"
   9   echo "  returns true. It is used for invoking tools from the LLVM test suite"
  10   echo "  Makefiles, where we need them to always return true so that we don't"
  11   echo "  abort the test run."
  12   exit 1
  13 fi
  14
  15 # Save a copy of the original arguments in a string before we
  16 # clobber them with the shift command.
  17 TIMEOUT=$1
  18 shift
  19 PROGRAM=$1
  20 shift
  21
  22 SYSTEM=`uname -s`
  23
  24 ULIMITCMD=""
  25 case $SYSTEM in
  26   CYGWIN*)
  27     ;;
  28   Darwin*)
  29     # Disable core file emission, the script doesn't find it anyway because it
  30     # is put into /cores.
  31     ULIMITCMD="$ULIMITCMD ulimit -c 0;"
  32     ULIMITCMD="$ULIMITCMD ulimit -t $TIMEOUT;"
  33     # To prevent infinite loops which fill up the disk, specify a limit on size
  34     # of files being output by the tests. 10 MB should be enough for anybody. ;)
  35     ULIMITCMD="$ULIMITCMD ulimit -f 10485760;"
  36     ;;
  37   *)
  38     ULIMITCMD="$ULIMITCMD ulimit -t $TIMEOUT;"
  39     ULIMITCMD="$ULIMITCMD ulimit -c unlimited;"
  40     # To prevent infinite loops which fill up the disk, specify a limit on size
  41     # of files being output by the tests. 10 MB should be enough for anybody. ;)
  42     ULIMITCMD="$ULIMITCMD ulimit -f 10485760;"
  43
  44     # virtual memory: 600 MB should be enough for anybody. ;)
  45     ULIMITCMD="$ULIMITCMD ulimit -v 600000;"
  46 esac
  47
  48 if ( ! sh -c "$ULIMITCMD sh -c '$PROGRAM $*'" ); then
  49     echo "warning: command failed: '$PROGRAM $*'"
  50 fi
  51
  52 # Always return "successful" so that tests will continue to be run.
  53 exit 0