gdb/testsuite/gdb.cp/virtbase.exp

   1 # Copyright 2010-2014 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.
  17
  18 if { [skip_cplus_tests] } { continue }
  19
  20 standard_testfile .cc
  21
  22 if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
  23     return -1
  24 }
  25
  26 if {![runto_main]} then {
  27     perror "couldn't run to breakpoint"
  28     continue
  29 }
  30
  31 gdb_breakpoint [gdb_get_line_number "breakpoint 1"]
  32 gdb_continue_to_breakpoint "first breakpoint"
  33
  34 # In PR 11226, we failed to print x correctly in the "print *this"
  35 # case.
  36 gdb_test "print *this" " = {<mc::Base> = {x = 2}, _vptr.Middle = $hex, y = 3}"
  37 gdb_test "print x" " = 2" "print x in get_y"
  38
  39 gdb_breakpoint [gdb_get_line_number "breakpoint 2"]
  40 gdb_continue_to_breakpoint "second breakpoint"
  41
  42 # In PR 11226, we could not find x here.
  43 gdb_test "print x" " = 2" "print x in get_z"
  44
  45 gdb_breakpoint [gdb_get_line_number "breakpoint 3"]
  46 gdb_continue_to_breakpoint "third breakpoint"
  47
  48 # In PR 9629, we failed to print v correctly here.
  49 gdb_test "print *(D *) e" " = {<C> = {v = 11}, _vptr.D = $hex}"
  50
  51 # A regression test reported to Red Hat bugzilla, see:
  52 # https://bugzilla.redhat.com/show_bug.cgi?id=560741
  53 gdb_test_no_output "set print object on"
  54 gdb_test "print/x b->mA" " = 0xaaaaaaaa"
  55
  56 # A regression test reported to Red Hat bugzilla, see:
  57 # https://bugzilla.redhat.com/show_bug.cgi?id=606660
  58 # `set print object on' is expected.
  59 gdb_test "print rtti_data" " = .*, data = 1\}"
  60
  61 # Printing a pointer into a virtual base of a larger object used to do
  62 # pointer adjusment directly into the value being printed, in-place
  63 # (and did it wrong, too).  Print the pointer, and then access the
  64 # value history to check the pointer value is not changed.  If it had
  65 # been changed, then we'd not be able to find the real type anymore.
  66 gdb_test "print virtual_middle_b" \
  67     " = \\(Virtual \\*\\) $hex <virtual_o>" \
  68     "print pointer to virtual base at non-zero offset of larger object"
  69 gdb_test "print $" \
  70     " = \\(Virtual \\*\\) $hex <virtual_o>" \
  71     "print same pointer from history value"
  72 gdb_test "print *$$" \
  73     " = \\(Virtual\\) {<VirtualMiddleA> = {<VirtualBase> = {_vptr.VirtualBase = ${hex}( <vtable for Virtual.*>)?, x = 0}, _vptr.VirtualMiddleA = ${hex}( <vtable for Virtual.*>)?, y = \\{0 <repeats 300 times>\\}}, <VirtualMiddleB> = {_vptr.VirtualMiddleB = ${hex}( <vtable for Virtual.*>)?, y = 0}, _vptr.Virtual = ${hex}( <vtable for Virtual.*>)?, z = 0}" \
  74     "print whole pointed-to object, starting from the virtual base pointer"