gdb2384.exp revision 1.9 
1# Copyright 2007-2020 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
24if { [skip_cplus_tests] } { continue }
25if { [skip_shlib_tests] } { continue }
26
27standard_testfile .cc gdb2384-base.cc
28
29set sofile [standard_output_file gdb2384-base.so]
30
31# Create and source the file that provides information about the compiler
32# used to compile the test case.
33if [get_compiler_info "c++"] {
34    return -1
35}
36
37if { [gdb_compile_shlib $srcdir/$subdir/$srcfile2 $sofile {debug c++}] != ""
38     || [gdb_compile $srcdir/$subdir/$srcfile $binfile executable [list debug "c++" shlib=${sofile}]] != ""} {
39    untested "failed to compile"
40    return -1
41}
42
43clean_restart ${binfile}
44gdb_load_shlib ${sofile}
45
46
47if ![runto_main] then {
48    perror "couldn't run to breakpoint"
49    return -1
50}
51
52gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
53gdb_continue_to_breakpoint "set breakpoint here"
54
55gdb_test "print d1.meth ()" \
56    ".*42.*"
57
58# Now try again.  gdb's without the fix will hopefully segv here
59
60runto_main
61gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
62gdb_continue_to_breakpoint "set breakpoint here"
63gdb_test "print d1.meth ()" \
64    ".*42.*" \
65    "gdb2384"
66
67# second case
68
69runto_main
70gdb_breakpoint [gdb_get_line_number "set breakpoint here (second)"]
71gdb_continue_to_breakpoint "set breakpoint here (second)"
72gdb_test "print d2.meth ()" \
73    ".*24.*" \
74    "print d2.meth()"
75
76runto_main
77gdb_breakpoint [gdb_get_line_number "set breakpoint here (second)"]
78gdb_continue_to_breakpoint "set breakpoint here (second)"
79gdb_test "print d2.meth ()" \
80    ".*24.*" \
81    "gdb2384 (second)"
82
83