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2f1d9bdd MM |
1 | # This testcase is part of GDB, the GNU debugger. |
2 | # | |
ecd75fc8 | 3 | # Copyright 2013-2014 Free Software Foundation, Inc. |
2f1d9bdd MM |
4 | # |
5 | # Contributed by Intel Corp. <christian.himpel@intel.com> | |
6 | # | |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9 | # the Free Software Foundation; either version 3 of the License, or | |
10 | # (at your option) any later version. | |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | ||
20 | # check for btrace support | |
21 | if { [skip_btrace_tests] } { return -1 } | |
22 | ||
23 | # compile and run to main | |
24 | standard_testfile .c .S | |
25 | if [prepare_for_testing $testfile.exp $testfile "$srcfile $srcfile2" {debug}] { | |
26 | return -1 | |
27 | } | |
28 | if ![runto_main] { | |
29 | return -1 | |
30 | } | |
31 | ||
32 | # set bp before loop and continue | |
33 | set bp_location [gdb_get_line_number "bp.1" $srcfile2] | |
34 | gdb_breakpoint $srcfile2:$bp_location | |
35 | gdb_continue_to_breakpoint "cont to $bp_location" ".*$srcfile2:$bp_location.*" | |
36 | ||
37 | # start btrace | |
38 | gdb_test_no_output "record btrace" | |
39 | ||
40 | # set bp after loop and continue | |
41 | set bp_location [gdb_get_line_number "bp.2" $srcfile2] | |
42 | gdb_breakpoint $srcfile2:$bp_location | |
43 | gdb_continue_to_breakpoint "cont to $bp_location" ".*$srcfile2:$bp_location.*" | |
44 | ||
45 | # The following test cases test if "browsing" through the | |
46 | # instruction history works as expected. So for the tests | |
47 | # it is necessary to count the number of lines that are | |
48 | # shown by the "record instruction-history" command. | |
49 | ||
23a7fe75 | 50 | set traced {} |
2f1d9bdd MM |
51 | set testname "determine number of recorded instructions" |
52 | gdb_test_multiple "info record" $testname { | |
53 | -re "Active record target: record-btrace\r\nRecorded \(\[0-9\]*\) instructions in \(\[0-9\]*\) functions for thread 1 .*\\.\r\n$gdb_prompt $" { | |
54 | set traced $expect_out(1,string) | |
2f1d9bdd MM |
55 | pass $testname |
56 | } | |
57 | } | |
58 | ||
23a7fe75 MM |
59 | # we have exactly 6 instructions here |
60 | set message "exactly 6 instructions" | |
61 | if { $traced != 6 } { | |
2f1d9bdd MM |
62 | fail $message |
63 | } else { | |
64 | pass $message | |
65 | } | |
66 | ||
67 | # test that we see the expected instructions | |
0688d04e | 68 | gdb_test "record instruction-history 2,6" [join [list \ |
5de9129b MM |
69 | "2\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ |
70 | "3\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax" \ | |
71 | "4\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
72 | "5\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
73 | "6\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
74 | ] "\r\n"] | |
75 | ||
76 | gdb_test "record instruction-history /f 2,+5" [join [list \ | |
77 | "2\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
78 | "3\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax" \ | |
79 | "4\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
80 | "5\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
81 | "6\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
82 | ] "\r\n"] | |
83 | ||
0688d04e | 84 | gdb_test "record instruction-history /p 6,-5" [join [list \ |
5de9129b MM |
85 | "2\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ |
86 | "3\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax" \ | |
87 | "4\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
88 | "5\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
89 | "6\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
90 | ] "\r\n"] | |
91 | ||
0688d04e | 92 | gdb_test "record instruction-history /pf 2,6" [join [list \ |
5de9129b MM |
93 | "2\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ |
94 | "3\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax" \ | |
95 | "4\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
96 | "5\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
97 | "6\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
98 | ] "\r\n"] | |
2f1d9bdd | 99 | |
0688d04e MM |
100 | gdb_test "record instruction-history 2,2" "2\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" |
101 | ||
2f1d9bdd MM |
102 | # the following tests are checking the iterators |
103 | # to avoid lots of regexps, we just check the number of lines that | |
104 | # were printed during command execution. | |
105 | ||
106 | # test_lines_output returns the output lines from command as a list. | |
107 | proc test_lines_output { command message } { | |
108 | global gdb_prompt | |
109 | set message "test_lines_output: $message" | |
110 | gdb_test_multiple $command $message { | |
111 | -re "\n\(.*\)\r\n$gdb_prompt $" { | |
112 | return [split [string trim $expect_out(1,string)] "\n"] | |
113 | } | |
114 | } | |
115 | } | |
116 | ||
117 | # test_lines_length returns the number of lines from command. | |
118 | proc test_lines_length { command message } { | |
119 | return [llength [test_lines_output $command $message]] | |
120 | } | |
121 | ||
122 | # show instruction history with unlimited size, we expect to see | |
123 | # all $traced instructions | |
124 | gdb_test_no_output "set record instruction-history-size 0" | |
125 | set message "record instruction-history - unlimited" | |
5de9129b | 126 | set lines [test_lines_length "record instruction-history 1" $message] |
2f1d9bdd MM |
127 | if { $traced != $lines } { |
128 | fail $message | |
129 | } else { | |
130 | pass $message | |
131 | } | |
132 | ||
133 | gdb_test_no_output "set record instruction-history-size $traced" | |
134 | set message "record instruction-history - traced" | |
5de9129b | 135 | set lines [test_lines_length "record instruction-history 1" $message] |
2f1d9bdd MM |
136 | if { $traced != $lines } { |
137 | fail $message | |
138 | } else { | |
139 | pass $message | |
140 | } | |
141 | ||
142 | # test that the iterator works | |
143 | set history_size 3 | |
144 | gdb_test_no_output "set record instruction-history-size $history_size" | |
145 | set message "browse history forward start" | |
5de9129b | 146 | set lines [test_lines_length "record instruction-history 1" $message] |
2f1d9bdd MM |
147 | if { $lines != $history_size } { |
148 | fail $message | |
149 | } else { | |
150 | pass $message | |
151 | } | |
152 | ||
23a7fe75 MM |
153 | set history_size 2 |
154 | gdb_test_no_output "set record instruction-history-size $history_size" | |
2f1d9bdd MM |
155 | set message "browse history forward middle" |
156 | set lines [test_lines_length "record instruction-history +" $message] | |
157 | if { $lines != $history_size } { | |
158 | fail $message | |
159 | } else { | |
160 | pass $message | |
161 | } | |
162 | ||
163 | set message "browse history forward last" | |
164 | set lines [test_lines_length "record instruction-history +" $message] | |
165 | if { $lines != 1 } { | |
166 | fail $message | |
167 | } else { | |
168 | pass $message | |
169 | } | |
170 | ||
171 | gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 1" | |
172 | ||
173 | # make sure we cannot move further | |
174 | gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 2" | |
175 | ||
23a7fe75 MM |
176 | set history_size 3 |
177 | gdb_test_no_output "set record instruction-history-size $history_size" | |
2f1d9bdd MM |
178 | set message "browse history backward last" |
179 | set lines [test_lines_length "record instruction-history -" $message] | |
180 | if { $lines != $history_size } { | |
181 | fail $message | |
182 | } else { | |
183 | pass $message | |
184 | } | |
185 | ||
23a7fe75 MM |
186 | set history_size 2 |
187 | gdb_test_no_output "set record instruction-history-size $history_size" | |
2f1d9bdd MM |
188 | set message "browse history backward middle" |
189 | set lines [test_lines_length "record instruction-history -" $message] | |
190 | if { $lines != $history_size } { | |
191 | fail $message | |
192 | } else { | |
193 | pass $message | |
194 | } | |
195 | ||
196 | set message "browse history backward first" | |
197 | set lines [test_lines_length "record instruction-history -" $message] | |
198 | if { $lines != 1 } { | |
199 | fail $message | |
200 | } else { | |
201 | pass $message | |
202 | } | |
203 | ||
204 | gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 1" | |
205 | ||
206 | # make sure we cannot move further back | |
207 | gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 2" |