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