1# Copyright 2019-2023 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# PR gdb/21855 concerns a crash in "finish" where the function's 17# return type is a typedef of void. 18 19load_lib dwarf.exp 20load_lib gdb-python.exp 21 22# This test can only be run on targets which support DWARF-2 and use gas. 23if {![dwarf2_support]} { 24 return 0 25} 26 27standard_testfile void-type.c .S 28 29# Make some DWARF for the test. 30set asm_file [standard_output_file $srcfile2] 31Dwarf::assemble $asm_file { 32 global srcfile 33 34 cu {} { 35 DW_TAG_compile_unit { 36 {DW_AT_producer "GNU C 8.1"} 37 {DW_AT_language @DW_LANG_C} 38 {DW_AT_name $srcfile} 39 {DW_AT_comp_dir /tmp} 40 } { 41 declare_labels main_type void_typedef 42 43 main_type: DW_TAG_base_type { 44 {DW_AT_byte_size 4 DW_FORM_sdata} 45 {DW_AT_encoding @DW_ATE_signed} 46 } 47 48 void_typedef: DW_TAG_typedef { 49 {name foo} 50 } 51 52 DW_TAG_subprogram { 53 {MACRO_AT_func {func}} 54 {type :$void_typedef} 55 } 56 DW_TAG_subprogram { 57 {MACRO_AT_func {main}} 58 {type :$main_type} 59 } 60 } 61 } 62} 63 64if { [prepare_for_testing "failed to prepare" ${testfile} \ 65 [list $srcfile $asm_file] {nodebug}] } { 66 return -1 67} 68 69if {![runto_main]} { 70 return -1 71} 72 73gdb_test "break func" "Breakpoint .*" \ 74 "set breakpoint in func" 75gdb_continue_to_breakpoint "continue to func" 76 77set skip_python [skip_python_tests] 78if {!$skip_python} { 79 gdb_test "python finishbp = gdb.FinishBreakpoint()" \ 80 "Temporary breakpoint.*" "set FinishBreakpoint" 81} 82 83gdb_test "finish" [multi_line \ 84 "Run till exit from #0 $hex in func \\\(\\\)" \ 85 ".*$hex in main \\\(\\\)"] 86 87if {!$skip_python} { 88 gdb_test "python print (finishbp.return_value)" "None" \ 89 "check that return_value is None" 90} 91