gdb/contrib/expect-read1.sh - gdb

  1. #! /bin/sh
  2. # runtest wrapper to reliably reproduce racy incomplete reads in the testsuite.

  4. # Copyright (C) 2013-2015 Free Software Foundation, Inc.
  5. # This program is free software; you can redistribute it and/or modify
  6. # it under the terms of the GNU General Public License as published by
  7. # the Free Software Foundation; either version 3 of the License, or
  8. # (at your option) any later version.
  9. #
  10. # This program 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
  13. # GNU General Public License for more details.
  14. #
  15. # You should have received a copy of the GNU General Public License
  16. # along with this program.  If not, see <http://www.gnu.org/licenses/>.

  18. # This tool excercise any incomplete reads handling in the testsuite by
  19. # simulating read always returns just 1 character.
  20. # Testsuite incompatibilities are tracked as GDB PR testsuite/12649.

  22. # Example usage:
  23. #
  24. # bash$ cd $objdir/gdb/testsuite
  25. # bash$ EXPECT=$srcdir/gdb/contrib/expect-read1.sh runtest
  26. # or
  27. # bash$ EXPECT=../contrib/expect-read1.sh runtest

  29. C=`echo $0|sed 's/\.sh$/.c/'`
  30. if ! test -e $C; then
  31.   echo >&2 "$0: Cannot find 'srcdir/gdb/contrib/expect-read1.c' at '$C'."
  32.   exit 2
  33. fi
  34. SO=/tmp/expect-read1.$$.so
  35. rm -f $SO
  36. CMD="${CC_FOR_TARGET:-gcc} -o $SO -Wall -fPIC -shared $C"
  37. if ! $CMD; then
  38.   echo >&2 "$0: Failed: $CMD"
  39.   exit 2
  40. fi
  41. trap "rm -f $SO" EXIT
  42. LD_PRELOAD=$SO expect "$@"