gdb/testsuite/gdb.python/python-function.exp

   1 # Copyright (C) 2009 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file is part of the GDB testsuite.  It tests the mechanism
  17 # exposing convenience functions to Python.
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23 # Usage: gdb_py_test_multiple NAME INPUT RESULT {INPUT RESULT}...
  24 # Run a test named NAME, consisting of multiple lines of input.
  25 # After each input line INPUT, search for result line RESULT.
  26 # Succeed if all results are seen; fail otherwise.
  27 proc gdb_py_test_multiple {name args} {
  28     global gdb_prompt
  29     foreach {input result} $args {
  30         if {[gdb_test_multiple $input "$name - $input" {
  31             -re "\[\r\n\]*($result)\[\r\n\]+($gdb_prompt | *>)$" {
  32                 pass "$name - $input"
  33             }
  34         }]} {
  35             return 1
  36         }
  37     }
  38     return 0
  39 }
  40
  41 # Start with a fresh gdb.
  42
  43 gdb_exit
  44 gdb_start
  45 gdb_reinitialize_dir $srcdir/$subdir
  46
  47 gdb_test_multiple "python print 'hello, world!'" "verify python support" {
  48     -re "not supported.*$gdb_prompt $"  {
  49       unsupported "python support is disabled"
  50       return -1
  51     }
  52     -re "$gdb_prompt $" {}
  53 }
  54
  55 gdb_py_test_multiple "input convenience function" \
  56   "python" "" \
  57   "class test_func (gdb.Function):" "" \
  58   "  def __init__ (self):" "" \
  59   "    super (test_func, self).__init__ (\"test_func\")" "" \
  60   "  def invoke (self, arg):" "" \
  61   "    return \"test_func output, arg = %s\" % arg.string ()" "" \
  62   "test_func ()" "" \
  63   "end" ""
  64
  65 gdb_test "print \$test_func (\"ugh\")" "= \"test_func output, arg = ugh\"" "call function"
  66
  67 # Test returning a gdb.Value from the function. This segfaulted GDB at one point.
  68
  69 gdb_py_test_multiple "input value-returning convenience function" \
  70   "python" "" \
  71   "class Double (gdb.Function):" "" \
  72   "  def __init__ (self):" "" \
  73   "    super (Double, self).__init__ (\"double\")" "" \
  74   "  def invoke (self, n):" "" \
  75   "    return n*2" "" \
  76   "Double ()" "" \
  77   "end" ""
  78
  79 gdb_test "print \$double (1)" "= 2" "call value-returning function"