gdb/testsuite/gdb.cp/rtti.exp

   1 # Copyright 2003, 2004, 2007 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 2 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, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  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 $tracelevel
  32         }
  33
  34 if { [skip_cplus_tests] } { continue }
  35
  36 #
  37 # test running programs
  38 #
  39 set prms_id 0
  40 set bug_id 0
  41
  42 set testfile "rtti"
  43 set srcfile1 "${testfile}1.cc"
  44 set objfile1 "${testfile}1.o"
  45 set srcfile2 "${testfile}2.cc"
  46 set objfile2 "${testfile}2.o"
  47 set binfile  "${objdir}/${subdir}/${testfile}"
  48
  49 if  { [gdb_compile "$srcdir/$subdir/$srcfile1" "$objdir/$subdir/$objfile1" object {debug c++}] != "" } {
  50      untested rtti.exp
  51      return -1
  52 }
  53
  54 if  { [gdb_compile "$srcdir/$subdir/$srcfile2" "$objdir/$subdir/$objfile2" object {debug c++}] != "" } {
  55      untested rtti.exp
  56      return -1
  57 }
  58
  59 if  { [gdb_compile "$objdir/$subdir/$objfile1 $objdir/$subdir/$objfile2" "${binfile}" executable {debug c++}] != "" } {
  60      untested rtti.exp
  61      return -1
  62 }
  63
  64 if [get_compiler_info ${binfile} "c++"] {
  65     return -1
  66 }
  67
  68 gdb_exit
  69 gdb_start
  70 gdb_reinitialize_dir $srcdir/$subdir
  71 gdb_load ${binfile}
  72
  73
  74 if ![runto_main] then {
  75     perror "couldn't run to breakpoint"
  76     continue
  77 }
  78
  79 # First, run to after we've constructed the object:
  80
  81 gdb_breakpoint [gdb_get_line_number "main-constructs-done" "$srcfile1"]
  82 gdb_continue_to_breakpoint "end of constructors in main"
  83
  84 gdb_test_multiple "print *e1" "print *e1" {
  85     -re "warning: RTTI symbol not found for class 'n1::D1'.*$gdb_prompt $" {
  86         # gdb HEAD 2003-12-05
  87         kfail "gdb/488" "print *e1"
  88     }
  89     -re "warning: can't find class named `n1::D1', as given by C\\+\\+ RTTI.*$gdb_prompt $" {
  90         # gdb 6.0
  91         kfail "gdb/488" "print *e1"
  92     }
  93     -re "\\$\[0-9\]* = {<n1::Base1> = .*}\r\n$gdb_prompt $" {
  94         pass "print *e1"
  95     }
  96     -re "\\$\[0-9\]* = {<Base1> = .*}\r\n$gdb_prompt $" {
  97         # NOTE: carlton/2003-05-16: If code is compiled by GCC2, we
  98         # don't print the warning (for no particular reason), but we
  99         # still call the class via the wrong name; PR gdb/57 is our
 100         # catch-all PR for nested type problems.
 101         kfail "gdb/57" "print *e1"
 102     }
 103 }
 104
 105 # NOTE: carlton/2004-01-14: This test with an "<incomplete type>"
 106 # message because, within rtt1.cc, GDB has no way of knowing that the
 107 # class is called 'n2::D2' instead of just 'D2'.  This is an artifical
 108 # test case, though: if we were using these classes in a more
 109 # substantial way, G++ would emit more debug info.  As is, I don't
 110 # think there's anything that GDB can do about this case until G++
 111 # starts emitting DW_TAG_namespace info; this should arrive with GCC
 112 # 3.4.
 113
 114 gdb_test_multiple "print *e2" "print *e2" {
 115     -re "warning: RTTI symbol not found for class 'n2::D2'.*$gdb_prompt $" {
 116         # gdb HEAD 2003-12-05
 117         kfail "gdb/488" "print *e2"
 118     }
 119     -re "warning: can't find class named `n2::D2', as given by C\\+\\+ RTTI.*$gdb_prompt $" {
 120         # gdb 6.0
 121         kfail "gdb/488" "print *e2"
 122     }
 123     -re "\\$\[0-9\]* = <incomplete type>\r\n$gdb_prompt $" {
 124         kfail "gdb/1511" "print *e2"
 125     }
 126     -re "\\$\[0-9\]* = {<n2::Base2> = .*}\r\n$gdb_prompt $" {
 127         pass "print *e2"
 128     }
 129     -re "\\$\[0-9\]* = {<Base2> = .*}\r\n$gdb_prompt $" {
 130         kfail "gdb/57" "print *e2"
 131     }
 132 }
 133
 134 # Now we test the hack that's been implemented to get around some
 135 # instances of PR gdb/1511.
 136
 137 gdb_breakpoint [gdb_get_line_number "func-constructs-done" "$srcfile1"]
 138 gdb_continue_to_breakpoint "end of constructors in func"
 139
 140 gdb_test "print *obj" "\\$\[0-9\]* = {<n2::Base2> = .*}"
 141
 142 gdb_breakpoint [gdb_get_line_number "func3-constructs-done" "$srcfile1"]
 143 gdb_continue_to_breakpoint "end of constructors in func3"
 144
 145 gdb_test "print *obj3" "\\$\[0-9\]* = {<n2::C2> = .*}"
 146
 147 gdb_exit
 148 return 0