gdb/testsuite/gdb.cp/rtti.exp

   1 # Copyright 2003, 2004, 2007, 2008, 2009, 2010, 2011
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file is part of the gdb testsuite.
  18
  19 # This contains tests for GDB's use of RTTI information.  This stems
  20 # from a bug reported in PR gdb/488 and other places, which leads to
  21 # statements like 'warning: can't find class named 'C::D', as given by
  22 # C++ RTTI'.  It arises from GDB not knowing about classes that are
  23 # defined in namespaces.
  24
  25 # NOTE: carlton/2003-05-16: I suspect it could arise from nested class
  26 # issues, too, and even once we fix that, there might be situations
  27 # (involving templates, in particular) where this problem triggers
  28 # because GDB and GCC have different ideas what a class is called.
  29
  30 if $tracelevel then {
  31         strace $tracelevel
  32         }
  33
  34 if { [skip_cplus_tests] } { continue }
  35
  36 #
  37 # test running programs
  38 #
  39
  40 set testfile "rtti"
  41 set srcfile1 "${testfile}1.cc"
  42 set objfile1 "${testfile}1.o"
  43 set srcfile2 "${testfile}2.cc"
  44 set objfile2 "${testfile}2.o"
  45 set binfile  "${objdir}/${subdir}/${testfile}"
  46
  47 if  { [gdb_compile "$srcdir/$subdir/$srcfile1" "$objdir/$subdir/$objfile1" object {debug c++}] != "" } {
  48      untested rtti.exp
  49      return -1
  50 }
  51
  52 if  { [gdb_compile "$srcdir/$subdir/$srcfile2" "$objdir/$subdir/$objfile2" object {debug c++}] != "" } {
  53      untested rtti.exp
  54      return -1
  55 }
  56
  57 if  { [gdb_compile "$objdir/$subdir/$objfile1 $objdir/$subdir/$objfile2" "${binfile}" executable {debug c++}] != "" } {
  58      untested rtti.exp
  59      return -1
  60 }
  61
  62 if [get_compiler_info ${binfile} "c++"] {
  63     return -1
  64 }
  65
  66 gdb_exit
  67 gdb_start
  68 gdb_reinitialize_dir $srcdir/$subdir
  69 gdb_load ${binfile}
  70
  71
  72 if ![runto_main] then {
  73     perror "couldn't run to breakpoint"
  74     continue
  75 }
  76
  77 # First, run to after we've constructed the object:
  78
  79 gdb_breakpoint [gdb_get_line_number "main-constructs-done" "$srcfile1"]
  80 gdb_continue_to_breakpoint "end of constructors in main"
  81
  82 gdb_test_multiple "print *e1" "print *e1" {
  83     -re "warning: RTTI symbol not found for class 'n1::D1'.*$gdb_prompt $" {
  84         # gdb HEAD 2003-12-05
  85         kfail "gdb/488" "print *e1"
  86     }
  87     -re "warning: can't find class named `n1::D1', as given by C\\+\\+ RTTI.*$gdb_prompt $" {
  88         # gdb 6.0
  89         kfail "gdb/488" "print *e1"
  90     }
  91     -re "\\$\[0-9\]* = {<n1::Base1> = .*}\r\n$gdb_prompt $" {
  92         pass "print *e1"
  93     }
  94     -re "\\$\[0-9\]* = {<Base1> = .*}\r\n$gdb_prompt $" {
  95         # NOTE: carlton/2003-05-16: If code is compiled by GCC2, we
  96         # don't print the warning (for no particular reason), but we
  97         # still call the class via the wrong name; PR gdb/57 is our
  98         # catch-all PR for nested type problems.
  99         kfail "gdb/57" "print *e1"
 100     }
 101 }
 102
 103 # NOTE: carlton/2004-01-14: This test with an "<incomplete type>"
 104 # message because, within rtt1.cc, GDB has no way of knowing that the
 105 # class is called 'n2::D2' instead of just 'D2'.  This is an artifical
 106 # test case, though: if we were using these classes in a more
 107 # substantial way, G++ would emit more debug info.  As is, I don't
 108 # think there's anything that GDB can do about this case until G++
 109 # starts emitting DW_TAG_namespace info; this should arrive with GCC
 110 # 3.4.
 111
 112 gdb_test_multiple "print *e2" "print *e2" {
 113     -re "warning: RTTI symbol not found for class 'n2::D2'.*$gdb_prompt $" {
 114         # gdb HEAD 2003-12-05
 115         kfail "gdb/488" "print *e2"
 116     }
 117     -re "warning: can't find class named `n2::D2', as given by C\\+\\+ RTTI.*$gdb_prompt $" {
 118         # gdb 6.0
 119         kfail "gdb/488" "print *e2"
 120     }
 121     -re "\\$\[0-9\]* = <incomplete type>\r\n$gdb_prompt $" {
 122         kfail "gdb/1511" "print *e2"
 123     }
 124     -re "\\$\[0-9\]* = {<n2::Base2> = .*}\r\n$gdb_prompt $" {
 125         pass "print *e2"
 126     }
 127     -re "\\$\[0-9\]* = {<Base2> = .*}\r\n$gdb_prompt $" {
 128         kfail "gdb/57" "print *e2"
 129     }
 130 }
 131
 132 # Now we test the hack that's been implemented to get around some
 133 # instances of PR gdb/1511.
 134
 135 gdb_breakpoint [gdb_get_line_number "func-constructs-done" "$srcfile1"]
 136 gdb_continue_to_breakpoint "end of constructors in func"
 137
 138 gdb_test "print *obj" "\\$\[0-9\]* = {<n2::Base2> = .*}"
 139
 140 gdb_breakpoint [gdb_get_line_number "func3-constructs-done" "$srcfile1"]
 141 gdb_continue_to_breakpoint "end of constructors in func3"
 142
 143 gdb_test "print *obj3" "\\$\[0-9\]* = {<n2::C2> = .*}"
 144
 145 gdb_exit
 146 return 0