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4c38e0a4 | 1 | # Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
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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 |
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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/>. |
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15 | |
16 | # This test checks that the if .. else .. end construct works and may | |
17 | # contain empty bodies without crashing. | |
18 | ||
19 | if $tracelevel then { | |
20 | strace $tracelevel | |
21 | } | |
22 | ||
23 | gdb_exit | |
24 | gdb_start | |
25 | ||
26 | # First test that the if command works with an empty body | |
27 | # Test with different conditions because the body is ignored | |
28 | # if it is not executed. | |
29 | ||
30 | # with true condition | |
31 | set message "if 1 with empty body" | |
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32 | gdb_test_multiple "if 1\nend" $message { |
33 | -re "$gdb_prompt $" {pass $message} | |
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34 | eof { |
35 | fail "$message (crashed)" | |
36 | gdb_exit | |
37 | gdb_start | |
38 | } | |
39 | } | |
40 | ||
41 | # with false condition | |
42 | set message "if 0 with empty body" | |
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43 | gdb_test_multiple "if 0\nend" $message { |
44 | -re "$gdb_prompt $" {pass $message} | |
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45 | eof { |
46 | fail "$message (crashed)" | |
47 | gdb_exit | |
48 | gdb_start | |
49 | } | |
50 | } | |
51 | ||
52 | # Second, do the same tests with an empty else body. | |
53 | # This fails in GDB <=6.5 | |
54 | ||
55 | # Unfortunately it was an uninitialised memory problem so | |
56 | # sometimes it just works. Preceed it with an if else end with | |
57 | # bodies and hopefully the memory with be dirty and the problem | |
58 | # will show itself (this works at time of writing). | |
59 | ||
60 | gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" "" | |
61 | ||
62 | # with true condition | |
63 | set message "if 1 .. else with empty body" | |
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64 | gdb_test_multiple "if 1\nelse\nend" $message { |
65 | -re "$gdb_prompt $" {pass $message} | |
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66 | eof { |
67 | fail "$message (crashed)" | |
68 | gdb_exit | |
69 | gdb_start | |
70 | } | |
71 | } | |
72 | ||
73 | # dirty memory | |
74 | gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" "" | |
75 | ||
76 | # with false condition | |
77 | set message "if 0 .. else with empty body" | |
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78 | gdb_test_multiple "if 0\nelse\nend" $message { |
79 | -re "$gdb_prompt $" {pass $message} | |
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80 | eof { |
81 | fail "$message (crashed)" | |
82 | gdb_exit | |
83 | gdb_start | |
84 | } | |
85 | } | |
86 | ||
35ec993f | 87 | gdb_test_no_output "set confirm off" "" |
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88 | |
89 | # Test that a define with an empty else can be replaced. | |
90 | # If there is memory corruption then free will fail. | |
91 | # dirty memory | |
92 | gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" "" | |
93 | # create | |
94 | gdb_test "define abc\nif 1\nelse\nend\nend" "" "create define with empty else" | |
95 | # call (note that condition is 1 so should pass) | |
27d3a1a2 | 96 | gdb_test_no_output "abc" "call original define" |
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97 | # replace |
98 | set message "replace define with if .. else with empty body" | |
99 | gdb_test_multiple "define abc\necho got here\\n\nend" $message { | |
100 | -re "$gdb_prompt $" {pass $message} | |
101 | eof {fail "$message (crashed)"} | |
102 | } | |
103 | # call | |
104 | gdb_test "abc" "got here" "call replacement define" |