gdb/testsuite/gdb.cp/rtti.exp

   1 # Copyright 2003, 2004, 2007, 2008 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 # This contains tests for GDB's use of RTTI information.  This stems
  19 # from a bug reported in PR gdb/488 and other places, which leads to
  20 # statements like 'warning: can't find class named 'C::D', as given by
  21 # C++ RTTI'.  It arises from GDB not knowing about classes that are
  22 # defined in namespaces.
  23
  24 # NOTE: carlton/2003-05-16: I suspect it could arise from nested class
  25 # issues, too, and even once we fix that, there might be situations
  26 # (involving templates, in particular) where this problem triggers
  27 # because GDB and GCC have different ideas what a class is called.
  28
  29 if $tracelevel then {
  30         strace $tracelevel
  31         }
  32
  33 if { [skip_cplus_tests] } { continue }
  34
  35 #
  36 # test running programs
  37 #
  38 set prms_id 0
  39 set bug_id 0
  40
  41 set testfile "rtti"
  42 set srcfile1 "${testfile}1.cc"
  43 set objfile1 "${testfile}1.o"
  44 set srcfile2 "${testfile}2.cc"
  45 set objfile2 "${testfile}2.o"
  46 set binfile  "${objdir}/${subdir}/${testfile}"
  47
  48 if  { [gdb_compile "$srcdir/$subdir/$srcfile1" "$objdir/$subdir/$objfile1" object {debug c++}] != "" } {
  49      untested rtti.exp
  50      return -1
  51 }
  52
  53 if  { [gdb_compile "$srcdir/$subdir/$srcfile2" "$objdir/$subdir/$objfile2" object {debug c++}] != "" } {
  54      untested rtti.exp
  55      return -1
  56 }
  57
  58 if  { [gdb_compile "$objdir/$subdir/$objfile1 $objdir/$subdir/$objfile2" "${binfile}" executable {debug c++}] != "" } {
  59      untested rtti.exp
  60      return -1
  61 }
  62
  63 if [get_compiler_info ${binfile} "c++"] {
  64     return -1
  65 }
  66
  67 gdb_exit
  68 gdb_start
  69 gdb_reinitialize_dir $srcdir/$subdir
  70 gdb_load ${binfile}
  71
  72
  73 if ![runto_main] then {
  74     perror "couldn't run to breakpoint"
  75     continue
  76 }
  77
  78 # First, run to after we've constructed the object:
  79
  80 gdb_breakpoint [gdb_get_line_number "main-constructs-done" "$srcfile1"]
  81 gdb_continue_to_breakpoint "end of constructors in main"
  82
  83 gdb_test_multiple "print *e1" "print *e1" {
  84     -re "warning: RTTI symbol not found for class 'n1::D1'.*$gdb_prompt $" {
  85         # gdb HEAD 2003-12-05
  86         kfail "gdb/488" "print *e1"
  87     }
  88     -re "warning: can't find class named `n1::D1', as given by C\\+\\+ RTTI.*$gdb_prompt $" {
  89         # gdb 6.0
  90         kfail "gdb/488" "print *e1"
  91     }
  92     -re "\\$\[0-9\]* = {<n1::Base1> = .*}\r\n$gdb_prompt $" {
  93         pass "print *e1"
  94     }
  95     -re "\\$\[0-9\]* = {<Base1> = .*}\r\n$gdb_prompt $" {
  96         # NOTE: carlton/2003-05-16: If code is compiled by GCC2, we
  97         # don't print the warning (for no particular reason), but we
  98         # still call the class via the wrong name; PR gdb/57 is our
  99         # catch-all PR for nested type problems.
 100         kfail "gdb/57" "print *e1"
 101     }
 102 }
 103
 104 # NOTE: carlton/2004-01-14: This test with an "<incomplete type>"
 105 # message because, within rtt1.cc, GDB has no way of knowing that the
 106 # class is called 'n2::D2' instead of just 'D2'.  This is an artifical
 107 # test case, though: if we were using these classes in a more
 108 # substantial way, G++ would emit more debug info.  As is, I don't
 109 # think there's anything that GDB can do about this case until G++
 110 # starts emitting DW_TAG_namespace info; this should arrive with GCC
 111 # 3.4.
 112
 113 gdb_test_multiple "print *e2" "print *e2" {
 114     -re "warning: RTTI symbol not found for class 'n2::D2'.*$gdb_prompt $" {
 115         # gdb HEAD 2003-12-05
 116         kfail "gdb/488" "print *e2"
 117     }
 118     -re "warning: can't find class named `n2::D2', as given by C\\+\\+ RTTI.*$gdb_prompt $" {
 119         # gdb 6.0
 120         kfail "gdb/488" "print *e2"
 121     }
 122     -re "\\$\[0-9\]* = <incomplete type>\r\n$gdb_prompt $" {
 123         kfail "gdb/1511" "print *e2"
 124     }
 125     -re "\\$\[0-9\]* = {<n2::Base2> = .*}\r\n$gdb_prompt $" {
 126         pass "print *e2"
 127     }
 128     -re "\\$\[0-9\]* = {<Base2> = .*}\r\n$gdb_prompt $" {
 129         kfail "gdb/57" "print *e2"
 130     }
 131 }
 132
 133 # Now we test the hack that's been implemented to get around some
 134 # instances of PR gdb/1511.
 135
 136 gdb_breakpoint [gdb_get_line_number "func-constructs-done" "$srcfile1"]
 137 gdb_continue_to_breakpoint "end of constructors in func"
 138
 139 gdb_test "print *obj" "\\$\[0-9\]* = {<n2::Base2> = .*}"
 140
 141 gdb_breakpoint [gdb_get_line_number "func3-constructs-done" "$srcfile1"]
 142 gdb_continue_to_breakpoint "end of constructors in func3"
 143
 144 gdb_test "print *obj3" "\\$\[0-9\]* = {<n2::C2> = .*}"
 145
 146 gdb_exit
 147 return 0