Commit | Line | Data |
---|---|---|
b811d2c2 | 1 | # Copyright 2006-2020 Free Software Foundation, Inc. |
40d2e0e3 AS |
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 | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
40d2e0e3 AS |
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 | |
e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
40d2e0e3 AS |
15 | |
16 | # This test checks that the if .. else .. end construct works and may | |
17 | # contain empty bodies without crashing. | |
18 | ||
40d2e0e3 AS |
19 | gdb_exit |
20 | gdb_start | |
21 | ||
22 | # First test that the if command works with an empty body | |
23 | # Test with different conditions because the body is ignored | |
24 | # if it is not executed. | |
25 | ||
26 | # with true condition | |
27 | set message "if 1 with empty body" | |
6d7fd486 AS |
28 | gdb_test_multiple "if 1\nend" $message { |
29 | -re "$gdb_prompt $" {pass $message} | |
40d2e0e3 AS |
30 | eof { |
31 | fail "$message (crashed)" | |
32 | gdb_exit | |
33 | gdb_start | |
34 | } | |
35 | } | |
36 | ||
37 | # with false condition | |
38 | set message "if 0 with empty body" | |
6d7fd486 AS |
39 | gdb_test_multiple "if 0\nend" $message { |
40 | -re "$gdb_prompt $" {pass $message} | |
40d2e0e3 AS |
41 | eof { |
42 | fail "$message (crashed)" | |
43 | gdb_exit | |
44 | gdb_start | |
45 | } | |
46 | } | |
47 | ||
48 | # Second, do the same tests with an empty else body. | |
49 | # This fails in GDB <=6.5 | |
50 | ||
51 | # Unfortunately it was an uninitialised memory problem so | |
177b42fe | 52 | # sometimes it just works. Precede it with an if else end with |
40d2e0e3 AS |
53 | # bodies and hopefully the memory with be dirty and the problem |
54 | # will show itself (this works at time of writing). | |
55 | ||
8344e389 JK |
56 | gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" \ |
57 | "if true else false #1" | |
40d2e0e3 AS |
58 | |
59 | # with true condition | |
60 | set message "if 1 .. else with empty body" | |
6d7fd486 AS |
61 | gdb_test_multiple "if 1\nelse\nend" $message { |
62 | -re "$gdb_prompt $" {pass $message} | |
40d2e0e3 AS |
63 | eof { |
64 | fail "$message (crashed)" | |
65 | gdb_exit | |
66 | gdb_start | |
67 | } | |
68 | } | |
69 | ||
70 | # dirty memory | |
8344e389 JK |
71 | gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" \ |
72 | "if true else false #2" | |
40d2e0e3 AS |
73 | |
74 | # with false condition | |
75 | set message "if 0 .. else with empty body" | |
6d7fd486 AS |
76 | gdb_test_multiple "if 0\nelse\nend" $message { |
77 | -re "$gdb_prompt $" {pass $message} | |
40d2e0e3 AS |
78 | eof { |
79 | fail "$message (crashed)" | |
80 | gdb_exit | |
81 | gdb_start | |
82 | } | |
83 | } | |
84 | ||
35ec993f | 85 | gdb_test_no_output "set confirm off" "" |
40d2e0e3 AS |
86 | |
87 | # Test that a define with an empty else can be replaced. | |
88 | # If there is memory corruption then free will fail. | |
89 | # dirty memory | |
8344e389 JK |
90 | gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" \ |
91 | "if true else false #3" | |
40d2e0e3 AS |
92 | # create |
93 | gdb_test "define abc\nif 1\nelse\nend\nend" "" "create define with empty else" | |
94 | # call (note that condition is 1 so should pass) | |
27d3a1a2 | 95 | gdb_test_no_output "abc" "call original define" |
40d2e0e3 AS |
96 | # replace |
97 | set message "replace define with if .. else with empty body" | |
98 | gdb_test_multiple "define abc\necho got here\\n\nend" $message { | |
99 | -re "$gdb_prompt $" {pass $message} | |
100 | eof {fail "$message (crashed)"} | |
101 | } | |
102 | # call | |
103 | gdb_test "abc" "got here" "call replacement define" |