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# Copyright 2019-2020 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# PR gdb/21855 concerns a crash in "finish" where the function's
# return type is a typedef of void.
load_lib dwarf.exp
load_lib gdb-python.exp
# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
return 0
}
standard_testfile void-type.c typedef-void-finish.S
# Make some DWARF for the test.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
cu {} {
DW_TAG_compile_unit {
{DW_AT_producer "GNU C 8.1"}
{DW_AT_language @DW_LANG_C}
{DW_AT_name void-type.c}
{DW_AT_comp_dir /tmp}
} {
declare_labels main_type void_typedef
main_type: DW_TAG_base_type {
{DW_AT_byte_size 4 DW_FORM_sdata}
{DW_AT_encoding @DW_ATE_signed}
}
void_typedef: DW_TAG_typedef {
{name foo}
}
DW_TAG_subprogram {
{MACRO_AT_func {func}}
{type :$void_typedef}
}
DW_TAG_subprogram {
{MACRO_AT_func {main}}
{type :$main_type}
}
}
}
}
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $asm_file] {nodebug}] } {
return -1
}
if {![runto_main]} {
return -1
}
gdb_test "break func" "Breakpoint .*" \
"set breakpoint in func"
gdb_continue_to_breakpoint "continue to func"
set skip_python [skip_python_tests]
if {!$skip_python} {
gdb_test "python finishbp = gdb.FinishBreakpoint()" \
"Temporary breakpoint.*" "set FinishBreakpoint"
}
gdb_test "finish" [multi_line \
"Run till exit from #0 $hex in func \\\(\\\)" \
".*$hex in main \\\(\\\)"]
if {!$skip_python} {
gdb_test "python print (finishbp.return_value)" "None" \
"check that return_value is None"
}
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