gdb/testsuite/gdb.base/debug-expr.exp

   1 # Copyright 2012-2016 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 # Test "set debug expr 1" on c expressions.
  17
  18 standard_testfile .c
  19
  20 if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug}]} {
  21     return -1
  22 }
  23
  24 if ![runto_main] {
  25     fail "run to main"
  26     return -1
  27 }
  28
  29 # Test whether the expression debug machinery accepts the expression.
  30
  31 proc test_debug_expr { cmd output } {
  32     global gdb_prompt
  33
  34     gdb_test_multiple $cmd "" {
  35         -re ".*Invalid expression.*\r\n$gdb_prompt $" {
  36             fail $cmd
  37         }
  38         -re ".*\[\r\n\]$output\r\n$gdb_prompt $" {
  39             pass $cmd
  40         }
  41     }
  42 }
  43
  44 for { set i 0 } { $i < 4 } { incr i } {
  45     gdb_test_no_output "set variable array\[$i\] = $i"
  46 }
  47
  48 gdb_test_no_output "set debug expression 1"
  49
  50 # This caused gdb to segfault.
  51 test_debug_expr "print /x {char\[4\]} array" \
  52     "\[$\]$decimal = \\{0x0, 0x1, 0x2, 0x3\\}"
  53
  54 # This caused gdb to output garbage and possibly segfault
  55 gdb_test "print \"hello\"" \
  56     ".*OP_STRING\[^\r\n\]*Language-specific string type: 0.*\[\r\n\]\\$$decimal = \"hello\"\[\r\n\].*" \
  57     "string evaluation with debug expr"