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

   1 # Copyright 2012-2021 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 # Test relies on checking gdb debug output. Do not run if gdb debug is
  19 # enabled as any debug will be redirected to the log.
  20 if [gdb_debug_enabled] {
  21     untested "debug is enabled"
  22     return 0
  23 }
  24
  25 standard_testfile .c
  26
  27 if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug}]} {
  28     return -1
  29 }
  30
  31 if ![runto_main] {
  32     fail "run to main"
  33     return -1
  34 }
  35
  36 for { set i 0 } { $i < 4 } { incr i } {
  37     gdb_test_no_output "set variable array\[$i\] = $i"
  38 }
  39
  40 gdb_test_no_output "set debug expression 1"
  41
  42 # This caused gdb to segfault.
  43 gdb_test_debug_expr "print /x {char\[4\]} array" \
  44     "\[$\]$decimal = \\{0x0, 0x1, 0x2, 0x3\\}"
  45
  46 # This caused gdb to output garbage and possibly segfault
  47 gdb_test_debug_expr "print \"hello\"" \
  48     ".*OP_STRING\[^\r\n\]*.*: ordinary string.*\[\r\n\]\\$$decimal = \"hello\"" \
  49     "string evaluation with debug expr"
  50
  51 # An expression using a function call.
  52 gdb_test_debug_expr "print call_me ( &val )" \
  53     ".*OP_FUNCALL\[^\r\n\]*.*UNOP_ADDR.*\[\r\n\]\\$$decimal = 0.*" \
  54     "function call expression"