gdb/testsuite/gdb.cp/class2.exp

   1 # Copyright 2003-2023 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 require allow_cplus_tests
  17
  18
  19 standard_testfile .cc
  20
  21 set flags [list debug c++]
  22 # When using recent Clangs, this test fails to compile without this warning
  23 # being disabled.  However, older Clangs fail to recognize the flag.
  24 if { [gcc_major_version "clang-*" "c++"] > 10 } {
  25     lappend flags additional_flags=-Wno-non-c-typedef-for-linkage
  26 }
  27
  28 if {[prepare_for_testing "failed to prepare" $testfile $srcfile $flags]} {
  29     return -1
  30 }
  31
  32 # Start with "set print object off" and "set print symbol off".
  33
  34 gdb_test_no_output "set print object off"
  35 gdb_test_no_output "set print symbol off"
  36
  37 if {![runto_main]} {
  38     return
  39 }
  40
  41 get_debug_format
  42
  43 gdb_test "break [gdb_get_line_number "marker return 0"]" \
  44     "Breakpoint.*at.* file .*" ""
  45
  46 gdb_test "continue" "Breakpoint .* at .*" ""
  47
  48 # Access the "A" object.
  49
  50 gdb_test "print alpha" \
  51     "= {.*a1 = 100.*}" \
  52     "print alpha at marker return 0"
  53
  54 # Access the "B" object.
  55
  56 gdb_test "print beta" \
  57     "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
  58     "print beta at marker return 0"
  59
  60 # Access the "A" object through an "A *" pointer.
  61
  62 gdb_test_multiple "print * aap" "print * aap at marker return 0" {
  63     -re "= {.*a1 = 100.*}\r\n$gdb_prompt $" {
  64         # gcc 2.95.3 -gstabs+
  65         # gcc 3.3.2 -gdwarf-2
  66         # gcc 3.3.2 -gstabs+
  67         pass "print * aap at marker return 0"
  68     }
  69     -re "= {.*a1 = .*}\r\n$gdb_prompt $" {
  70         if { [test_compiler_info gcc-2-*] && [test_debug_format "DWARF \[0-9\]"] } {
  71             # gcc 2.95.3 -gdwarf-2
  72             setup_kfail "gdb/1465" "*-*-*"
  73         }
  74         fail "print * aap at marker return 0"
  75     }
  76 }
  77
  78 # Access the "B" object through a "B *" pointer.
  79
  80 gdb_test "print * bbp" \
  81     "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
  82     "print * bbp at marker return 0"
  83
  84 # Access the "B" object through an "A *" pointer.
  85 # This should print using the "A" type.
  86
  87 gdb_test_multiple "print * abp" "print * abp at marker return 0, s-p-o off" {
  88     -re "= {.*a1 = 200.*b1 = .*b2 = .*}\r\n$gdb_prompt $" {
  89         # This would violate the documentation for "set print object off".
  90         fail "print * abp at marker return 0, s-p-o off"
  91     }
  92     -re "= {.*a1 = 200.*}\r\n$gdb_prompt $" {
  93         pass "print * abp at marker return 0, s-p-o off"
  94     }
  95 }
  96
  97 # Access the "B" object through a "B *" pointer expression.
  98 # This should print using the "B" type.
  99
 100 gdb_test "print * (B *) abp" \
 101     "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
 102     "print * (B *) abp at marker return 0"
 103
 104 # Print the "D" object.
 105
 106 gdb_test "print delta" \
 107     "= {.*d1 = 400}" \
 108     "print delta with \"print object\" off"
 109
 110 # Printing the value of an object containing no data fields:
 111
 112 gdb_test "p e" "= \{<No data fields>\}" "print object with no data fields"
 113
 114 # Printing NULL pointers with "set print object on".
 115
 116 gdb_test_no_output "set print object on"
 117 gdb_test "p acp" "= \\(C \\*\\) ${hex}"
 118 gdb_test "p acp->c1" "\\(A \\*\\) 0x0"
 119 gdb_test "p acp->c2" "\\(A \\*\\) ${hex}f"
 120
 121 # Print the "D" object with "set print object on".
 122 # There's no difference in output, but this exercises vtable lookup
 123 # with a typedef'd baseclass.
 124
 125 gdb_test "print delta" \
 126     "= {.*d1 = 400}" \
 127     "print delta with \"print object\" on"
 128
 129 # Regression test for PR c++/15401.
 130 # Check that the type printed is a reference.
 131 gdb_test "p aref" " = \\(A \\&\\) .*"