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