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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 | |
724c7dd8 MM |
68 | gdb_test "record instruction-history 1,6" [join [list \ |
69 | "1\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
70 | "2\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax" \ | |
71 | "3\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
72 | "4\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
73 | "5\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>"] "\r\n"] | |
2f1d9bdd | 74 | |
724c7dd8 MM |
75 | gdb_test "record instruction-history /f 1,+5" [join [list \ |
76 | "1\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
77 | "2\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax" \ | |
78 | "3\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
79 | "4\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
80 | "5\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
81 | ] "\r\n"] | |
2f1d9bdd | 82 | |
724c7dd8 MM |
83 | gdb_test "record instruction-history /p 6,-5" [join [list \ |
84 | "1\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
85 | "2\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax" \ | |
86 | "3\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
87 | "4\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
88 | "5\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
89 | ] "\r\n"] | |
2f1d9bdd | 90 | |
724c7dd8 MM |
91 | gdb_test "record instruction-history /pf 1,6" [join [list \ |
92 | "1\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
93 | "2\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax" \ | |
94 | "3\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>" \ | |
95 | "4\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax" \ | |
96 | "5\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" \ | |
97 | ] "\r\n"] | |
2f1d9bdd MM |
98 | |
99 | # the following tests are checking the iterators | |
100 | # to avoid lots of regexps, we just check the number of lines that | |
101 | # were printed during command execution. | |
102 | ||
103 | # test_lines_output returns the output lines from command as a list. | |
104 | proc test_lines_output { command message } { | |
105 | global gdb_prompt | |
106 | set message "test_lines_output: $message" | |
107 | gdb_test_multiple $command $message { | |
108 | -re "\n\(.*\)\r\n$gdb_prompt $" { | |
109 | return [split [string trim $expect_out(1,string)] "\n"] | |
110 | } | |
111 | } | |
112 | } | |
113 | ||
114 | # test_lines_length returns the number of lines from command. | |
115 | proc test_lines_length { command message } { | |
116 | return [llength [test_lines_output $command $message]] | |
117 | } | |
118 | ||
119 | # show instruction history with unlimited size, we expect to see | |
120 | # all $traced instructions | |
121 | gdb_test_no_output "set record instruction-history-size 0" | |
122 | set message "record instruction-history - unlimited" | |
123 | set lines [test_lines_length "record instruction-history 0" $message] | |
124 | if { $traced != $lines } { | |
125 | fail $message | |
126 | } else { | |
127 | pass $message | |
128 | } | |
129 | ||
130 | gdb_test_no_output "set record instruction-history-size $traced" | |
131 | set message "record instruction-history - traced" | |
132 | set lines [test_lines_length "record instruction-history 0" $message] | |
133 | if { $traced != $lines } { | |
134 | fail $message | |
135 | } else { | |
136 | pass $message | |
137 | } | |
138 | ||
139 | # test that the iterator works | |
140 | set history_size 3 | |
141 | gdb_test_no_output "set record instruction-history-size $history_size" | |
142 | set message "browse history forward start" | |
143 | set lines [test_lines_length "record instruction-history 0" $message] | |
144 | if { $lines != $history_size } { | |
145 | fail $message | |
146 | } else { | |
147 | pass $message | |
148 | } | |
149 | ||
23a7fe75 MM |
150 | set history_size 2 |
151 | gdb_test_no_output "set record instruction-history-size $history_size" | |
2f1d9bdd MM |
152 | set message "browse history forward middle" |
153 | set lines [test_lines_length "record instruction-history +" $message] | |
154 | if { $lines != $history_size } { | |
155 | fail $message | |
156 | } else { | |
157 | pass $message | |
158 | } | |
159 | ||
160 | set message "browse history forward last" | |
161 | set lines [test_lines_length "record instruction-history +" $message] | |
162 | if { $lines != 1 } { | |
163 | fail $message | |
164 | } else { | |
165 | pass $message | |
166 | } | |
167 | ||
168 | gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 1" | |
169 | ||
170 | # make sure we cannot move further | |
171 | gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 2" | |
172 | ||
23a7fe75 MM |
173 | set history_size 3 |
174 | gdb_test_no_output "set record instruction-history-size $history_size" | |
2f1d9bdd MM |
175 | set message "browse history backward last" |
176 | set lines [test_lines_length "record instruction-history -" $message] | |
177 | if { $lines != $history_size } { | |
178 | fail $message | |
179 | } else { | |
180 | pass $message | |
181 | } | |
182 | ||
23a7fe75 MM |
183 | set history_size 2 |
184 | gdb_test_no_output "set record instruction-history-size $history_size" | |
2f1d9bdd MM |
185 | set message "browse history backward middle" |
186 | set lines [test_lines_length "record instruction-history -" $message] | |
187 | if { $lines != $history_size } { | |
188 | fail $message | |
189 | } else { | |
190 | pass $message | |
191 | } | |
192 | ||
193 | set message "browse history backward first" | |
194 | set lines [test_lines_length "record instruction-history -" $message] | |
195 | if { $lines != 1 } { | |
196 | fail $message | |
197 | } else { | |
198 | pass $message | |
199 | } | |
200 | ||
201 | gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 1" | |
202 | ||
203 | # make sure we cannot move further back | |
204 | gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 2" |