gdb/testsuite/gdb.base/return-nodebug.exp

   1 # Copyright (C) 2009-2024 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 set allow_float_test [allow_float_test]
  17
  18 proc do_test {type} {
  19     set typenospace [string map {{ } -} $type]
  20
  21     with_test_prefix "$typenospace" {
  22         if {[runto "func"]} {
  23             # Verify that we do not crash when using "return" from a
  24             # function with no debugging info.  Such function has no
  25             # `struct symbol'.  It may still have an associated
  26             # `struct minimal_symbol'.
  27
  28             gdb_test "return -1" \
  29                 "Return value type not available for selected stack frame\\.\r\nPlease use an explicit cast of the value to return\\." \
  30                 "return from function with no debug info without a cast"
  31
  32             # Cast of the result to the proper width must be done explicitely.
  33             gdb_test "return ($type) -1" "#0 .* main \\(.*" \
  34                 "return from function with no debug info with a cast" \
  35                 "Make selected stack frame return now\\? \\(y or n\\) " "y"
  36
  37             gdb_test "advance marker" "marker \\(.*" \
  38                 "advance to marker"
  39
  40             # And if it returned the full width of the result.
  41             if {$type == "float" || $type == "double"} {
  42                 set flag ""
  43             } else {
  44                 set flag "/d"
  45             }
  46             gdb_test "print $flag t" " = -1" "full width of the returned result"
  47         }
  48     }
  49 }
  50
  51 foreach type {{signed char} {short} {int} {long} {long long} {float} {double}} {
  52     if { !$allow_float_test && ($type == "float" || $type == "double") } {
  53         continue
  54     }
  55     set typenospace_dash \
  56         [string map {{ } -} $type]
  57     set typenospace_underscore \
  58         [string map {{ } _} $type]
  59
  60     standard_testfile .c return-nodebug1.c
  61
  62     set additional_flags {}
  63     lappend additional_flags \
  64         additional_flags=-DTYPE_NOSPACE=$typenospace_underscore
  65     lappend additional_flags \
  66         additional_flags=-DTYPE_NOSPACE_$typenospace_underscore
  67
  68     if {[prepare_for_testing_full "failed to prepare" \
  69              [list ${testfile}-${typenospace_dash} debug \
  70                   $srcfile [concat {debug} $additional_flags] \
  71                   $srcfile2 $additional_flags]]} {
  72         continue
  73     }
  74
  75     do_test $type
  76 }