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b811d2c2 | 1 | # Copyright 2019-2020 Free Software Foundation, Inc. |
f097f5ad TT |
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 | ||
19 | load_lib dwarf.exp | |
20 | load_lib gdb-python.exp | |
21 | ||
22 | # This test can only be run on targets which support DWARF-2 and use gas. | |
23 | if {![dwarf2_support]} { | |
24 | return 0 | |
25 | } | |
26 | ||
27 | standard_testfile void-type.c typedef-void-finish.S | |
28 | ||
29 | # Make some DWARF for the test. | |
30 | set asm_file [standard_output_file $srcfile2] | |
31 | Dwarf::assemble $asm_file { | |
32 | global srcdir subdir srcfile | |
33 | ||
34 | set func_result [function_range func ${srcdir}/${subdir}/${srcfile}] | |
35 | set func_start [lindex $func_result 0] | |
36 | set func_length [lindex $func_result 1] | |
37 | ||
38 | set main_result [function_range main ${srcdir}/${subdir}/${srcfile}] | |
39 | set main_start [lindex $main_result 0] | |
40 | set main_length [lindex $main_result 1] | |
41 | ||
42 | cu {} { | |
43 | DW_TAG_compile_unit { | |
44 | {DW_AT_producer "GNU C 8.1"} | |
45 | {DW_AT_language @DW_LANG_C} | |
46 | {DW_AT_name void-type.c} | |
47 | {DW_AT_comp_dir /tmp} | |
48 | } { | |
49 | declare_labels main_type void_typedef | |
50 | ||
51 | main_type: DW_TAG_base_type { | |
52 | {DW_AT_byte_size 4 DW_FORM_sdata} | |
53 | {DW_AT_encoding @DW_ATE_signed} | |
54 | } | |
55 | ||
56 | void_typedef: DW_TAG_typedef { | |
57 | {name foo} | |
58 | } | |
59 | ||
60 | DW_TAG_subprogram { | |
61 | {name func} | |
62 | {low_pc $func_start addr} | |
63 | {high_pc "$func_start + $func_length" addr} | |
64 | {type :$void_typedef} | |
65 | } | |
66 | DW_TAG_subprogram { | |
67 | {name main} | |
68 | {low_pc $main_start addr} | |
69 | {high_pc "$main_start + $main_length" addr} | |
70 | {type :$main_type} | |
71 | } | |
72 | } | |
73 | } | |
74 | } | |
75 | ||
76 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
77 | [list $srcfile $asm_file] {nodebug}] } { | |
78 | return -1 | |
79 | } | |
80 | ||
81 | if {![runto_main]} { | |
82 | return -1 | |
83 | } | |
84 | ||
85 | gdb_test "break func" "Breakpoint .*" \ | |
86 | "set breakpoint in func" | |
87 | gdb_continue_to_breakpoint "continue to func" | |
88 | ||
89 | set skip_python [skip_python_tests] | |
90 | if {!$skip_python} { | |
91 | gdb_test "python finishbp = gdb.FinishBreakpoint()" \ | |
92 | "Temporary breakpoint.*" "set FinishBreakpoint" | |
93 | } | |
94 | ||
95 | gdb_test "finish" [multi_line \ | |
96 | "Run till exit from #0 $hex in func \\\(\\\)" \ | |
97 | ".*$hex in main \\\(\\\)"] | |
98 | ||
99 | if {!$skip_python} { | |
100 | gdb_test "python print (finishbp.return_value)" "None" \ | |
101 | "check that return_value is None" | |
102 | } |