gdb/testsuite/gdb.cp/gdb2384.exp

   1 # Copyright 2007-2023 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 require allow_cplus_tests allow_shlib_tests
  25
  26 standard_testfile .cc gdb2384-base.cc
  27
  28 include_file gdb2384-base.h
  29
  30 set sofile [standard_output_file gdb2384-base.so]
  31
  32 if { [gdb_compile_shlib $srcdir/$subdir/$srcfile2 $sofile {debug c++}] != ""
  33      || [gdb_compile $srcdir/$subdir/$srcfile $binfile executable [list debug "c++" shlib=${sofile}]] != ""} {
  34     untested "failed to compile"
  35     return -1
  36 }
  37
  38 clean_restart ${binfile}
  39 gdb_load_shlib ${sofile}
  40
  41
  42 if {![runto_main]} {
  43     return -1
  44 }
  45
  46 gdb_breakpoint [gdb_get_line_number "First breakpoint"]
  47 gdb_continue_to_breakpoint "run to 'First breakpoint', first time"
  48
  49 gdb_test "print d1.meth ()" \
  50     ".*42.*"
  51
  52 # Now try again.  gdb's without the fix will hopefully segv here
  53
  54 runto_main
  55 gdb_breakpoint [gdb_get_line_number "First breakpoint"]
  56 gdb_continue_to_breakpoint "run to 'First breakpoint', second time"
  57 gdb_test "print d1.meth ()" \
  58     ".*42.*" \
  59     "gdb2384 at 'First breakpoint'"
  60
  61 # second case
  62
  63 runto_main
  64 gdb_breakpoint [gdb_get_line_number "Second breakpoint"]
  65 gdb_continue_to_breakpoint "run to 'Second breakpoint', first time"
  66 gdb_test "print d2.meth ()" \
  67     ".*24.*" \
  68     "print d2.meth()"
  69
  70 runto_main
  71 gdb_breakpoint [gdb_get_line_number "Second breakpoint"]
  72 gdb_continue_to_breakpoint "run to 'Second breakpoint', second time"
  73 gdb_test "print d2.meth ()" \
  74     ".*24.*" \
  75     "gdb2384 at 'Second breakpoint'"
  76