gdb/testsuite/gdb.cp/gdb2384.exp

   1 # Copyright 2007, 2009, 2010 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 # When gdb resolves type information for class "derived" from objfile
  17 # gdb2384, it use to fill in the TYPE_VPTR_BASETYPE field with class "base"
  18 # from objfile gdb2384-base.so.  When the program is rerun the type
  19 # information for base-in-so-base.so is discarded leaving
  20 # TYPE_VPTR_BASETYPE dangling.
  21 #
  22 # PR c++/9489.
  23
  24 if $tracelevel then {
  25     strace $tracelevel
  26 }
  27
  28 if { [skip_cplus_tests] } { continue }
  29 if { [skip_shlib_tests] } { continue }
  30
  31 set testfile "gdb2384"
  32 set srcfile ${testfile}.cc
  33 set binfile $objdir/$subdir/$testfile
  34
  35 set libfile "gdb2384-base"
  36 set libsrcfile ${libfile}.cc
  37 set sofile $objdir/$subdir/${libfile}.so
  38
  39 # Create and source the file that provides information about the compiler
  40 # used to compile the test case.
  41 if [get_compiler_info ${binfile} "c++"] {
  42     return -1
  43 }
  44
  45 if { [gdb_compile_shlib $srcdir/$subdir/$libsrcfile $sofile {debug c++}] != ""
  46      || [gdb_compile $srcdir/$subdir/$srcfile $binfile executable [list debug "c++" shlib=${sofile}]] != ""} {
  47     untested gdb2384.exp
  48     return -1
  49 }
  50
  51 gdb_exit
  52 gdb_start
  53 gdb_reinitialize_dir $srcdir/$subdir
  54 gdb_load ${binfile}
  55 gdb_load_shlibs ${sofile}
  56
  57
  58 if ![runto_main] then {
  59     perror "couldn't run to breakpoint"
  60     return -1
  61 }
  62
  63 gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
  64 gdb_continue_to_breakpoint "set breakpoint here"
  65
  66 gdb_test "print d1.meth ()" \
  67     ".*42.*" \
  68     "print d1.meth ()"
  69
  70 # Now try again.  gdb's without the fix will hopefully segv here
  71
  72 runto_main
  73 gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
  74 gdb_continue_to_breakpoint "set breakpoint here"
  75 gdb_test "print d1.meth ()" \
  76     ".*42.*" \
  77     "gdb2384"
  78
  79 # second case
  80
  81 runto_main
  82 gdb_breakpoint [gdb_get_line_number "set breakpoint here (second)"]
  83 gdb_continue_to_breakpoint "set breakpoint here (second)"
  84 gdb_test "print d2.meth ()" \
  85     ".*24.*" \
  86     "print d2.meth()"
  87
  88 runto_main
  89 gdb_breakpoint [gdb_get_line_number "set breakpoint here (second)"]
  90 gdb_continue_to_breakpoint "set breakpoint here (second)"
  91 gdb_test "print d2.meth ()" \
  92     ".*24.*" \
  93     "gdb2384 (second)"
  94