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8acc9f48 | 1 | # Copyright 1998-2013 Free Software Foundation, Inc. |
c906108c SS |
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 |
c906108c | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
c906108c SS |
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. | |
e22f8b7c | 12 | # |
c906108c | 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/>. |
c906108c | 15 | |
c906108c SS |
16 | load_lib "trace-support.exp" |
17 | ||
c906108c | 18 | |
497a5eb0 | 19 | standard_testfile |
c906108c | 20 | |
497a5eb0 | 21 | if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug nowarnings}]} { |
b60f0898 | 22 | return -1 |
c906108c SS |
23 | } |
24 | ||
25 | # Tests: | |
26 | # 1) Set up a trace experiment that will collect approximately 10 frames, | |
27 | # requiring more than 512 but less than 1024 bytes of cache buffer. | |
28 | # (most targets should have at least 1024 bytes of cache buffer!) | |
29 | # Run and confirm that it collects all 10 frames. | |
30 | # 2) Artificially limit the trace buffer to 512 bytes, and rerun the | |
31 | # experiment. Confirm that the first several frames are collected, | |
32 | # but that the last several are not. | |
33 | # 3) Set trace buffer to circular mode, still with the artificial limit | |
34 | # of 512 bytes, and rerun the experiment. Confirm that the last | |
35 | # several frames are collected, but the first several are not. | |
36 | # | |
37 | ||
38 | # return 0 for success, 1 for failure | |
39 | proc run_trace_experiment { pass } { | |
40 | gdb_run_cmd | |
41 | ||
42 | if [gdb_test "tstart" \ | |
43 | "\[\r\n\]*" \ | |
44 | "start trace experiment, pass $pass"] then { return 1; } | |
45 | if [gdb_test "continue" \ | |
46 | "Continuing.*Breakpoint \[0-9\]+, end.*" \ | |
47 | "run to end, pass $pass"] then { return 1; } | |
48 | if [gdb_test "tstop" \ | |
49 | "\[\r\n\]*" \ | |
50 | "stop trace experiment, pass $pass"] then { return 1; } | |
51 | return 0; | |
52 | } | |
53 | ||
54 | # return 0 for success, 1 for failure | |
55 | proc set_a_tracepoint { func } { | |
56 | if [gdb_test "trace $func" \ | |
57 | "Tracepoint \[0-9\]+ at .*" \ | |
58 | "set tracepoint at $func"] then { | |
59 | return 1; | |
60 | } | |
61 | if [gdb_trace_setactions "set actions for $func" \ | |
62 | "" \ | |
63 | "collect testload" "^$"] then { | |
64 | return 1; | |
65 | } | |
66 | return 0; | |
67 | } | |
68 | ||
69 | # return 0 for success, 1 for failure | |
70 | proc setup_tracepoints { } { | |
71 | gdb_delete_tracepoints | |
72 | if [set_a_tracepoint func0] then { return 1; } | |
73 | if [set_a_tracepoint func1] then { return 1; } | |
74 | if [set_a_tracepoint func2] then { return 1; } | |
75 | if [set_a_tracepoint func3] then { return 1; } | |
76 | if [set_a_tracepoint func4] then { return 1; } | |
77 | if [set_a_tracepoint func5] then { return 1; } | |
78 | if [set_a_tracepoint func6] then { return 1; } | |
79 | if [set_a_tracepoint func7] then { return 1; } | |
80 | if [set_a_tracepoint func8] then { return 1; } | |
81 | if [set_a_tracepoint func9] then { return 1; } | |
82 | return 0; | |
83 | } | |
84 | ||
85 | # return 0 for success, 1 for failure | |
86 | proc trace_buffer_normal { } { | |
a2e0062d PA |
87 | global gdb_prompt |
88 | ||
89 | set ok 0 | |
90 | set test "maint packet QTBuffer:size:ffffffff" | |
91 | gdb_test_multiple $test $test { | |
92 | -re "received: .OK.\r\n$gdb_prompt $" { | |
93 | set ok 1 | |
94 | pass $test | |
95 | } | |
96 | -re "\r\n$gdb_prompt $" { | |
97 | } | |
98 | } | |
99 | if { !$ok } { | |
100 | unsupported $test | |
c906108c SS |
101 | return 1; |
102 | } | |
a2e0062d PA |
103 | |
104 | set ok 0 | |
105 | set test "maint packet QTBuffer:circular:0" | |
106 | gdb_test_multiple $test $test { | |
107 | -re "received: .OK.\r\n$gdb_prompt $" { | |
108 | set ok 1 | |
109 | pass $test | |
110 | } | |
111 | -re "\r\n$gdb_prompt $" { | |
112 | } | |
113 | } | |
114 | if { !$ok } { | |
115 | unsupported $test | |
c906108c SS |
116 | return 1; |
117 | } | |
a2e0062d | 118 | |
c906108c SS |
119 | return 0; |
120 | } | |
121 | ||
122 | # return 0 for success, 1 for failure | |
123 | proc gdb_trace_circular_tests { } { | |
c906108c | 124 | if { ![gdb_target_supports_trace] } then { |
10010058 | 125 | unsupported "Current target does not support trace" |
c906108c SS |
126 | return 1; |
127 | } | |
128 | ||
129 | if [trace_buffer_normal] then { return 1; } | |
130 | ||
de7ff789 MS |
131 | gdb_test "break begin" ".*" "" |
132 | gdb_test "break end" ".*" "" | |
133 | gdb_test "tstop" ".*" "" | |
134 | gdb_test "tfind none" ".*" "" | |
c906108c SS |
135 | |
136 | if [setup_tracepoints] then { return 1; } | |
137 | ||
138 | # First, run the trace experiment with default attributes: | |
139 | # Make sure it behaves as expected. | |
140 | if [run_trace_experiment 1] then { return 1; } | |
141 | if [gdb_test "tfind start" \ | |
142 | "#0 func0 .*" \ | |
143 | "find frame zero, pass 1"] then { return 1; } | |
144 | ||
145 | if [gdb_test "tfind 9" \ | |
146 | "#0 func9 .*" \ | |
147 | "find frame nine, pass 1"] then { return 1; } | |
148 | ||
149 | if [gdb_test "tfind none" \ | |
150 | "#0 end .*" \ | |
151 | "quit trace debugging, pass 1"] then { return 1; } | |
152 | ||
153 | # Then, shrink the trace buffer so that it will not hold | |
154 | # all ten trace frames. Verify that frame zero is still | |
155 | # collected, but frame nine is not. | |
156 | if [gdb_test "maint packet QTBuffer:size:200" \ | |
157 | "received: .OK." "shrink the target trace buffer"] then { | |
158 | return 1; | |
159 | } | |
160 | if [run_trace_experiment 2] then { return 1; } | |
161 | if [gdb_test "tfind start" \ | |
162 | "#0 func0 .*" \ | |
163 | "find frame zero, pass 2"] then { return 1; } | |
164 | ||
165 | if [gdb_test "tfind 9" \ | |
166 | ".* failed to find .*" \ | |
167 | "fail to find frame nine, pass 2"] then { return 1; } | |
168 | ||
169 | if [gdb_test "tfind none" \ | |
170 | "#0 end .*" \ | |
171 | "quit trace debugging, pass 2"] then { return 1; } | |
172 | ||
173 | # Finally, make the buffer circular. Now when it runs out of | |
174 | # space, it should wrap around and overwrite the earliest frames. | |
175 | # This means that: | |
176 | # 1) frame zero will be overwritten and therefore unavailable | |
177 | # 2) the earliest frame in the buffer will be other-than-zero | |
178 | # 3) frame nine will be available (unlike on pass 2). | |
179 | if [gdb_test "maint packet QTBuffer:circular:1" \ | |
180 | "received: .OK." "make the target trace buffer circular"] then { | |
181 | return 1; | |
182 | } | |
183 | if [run_trace_experiment 3] then { return 1; } | |
184 | if [gdb_test "tfind start" \ | |
185 | "#0 func\[1-9\] .*" \ | |
186 | "first frame is NOT frame zero, pass 3"] then { return 1; } | |
187 | ||
188 | if [gdb_test "tfind 9" \ | |
189 | "#0 func9 .*" \ | |
190 | "find frame nine, pass 3"] then { return 1; } | |
191 | ||
192 | if [gdb_test "tfind none" \ | |
193 | "#0 end .*" \ | |
194 | "quit trace debugging, pass 3"] then { return 1; } | |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
e68d8fd4 MS |
199 | gdb_test_no_output "set circular-trace-buffer on" \ |
200 | "set circular-trace-buffer on" | |
4daf5ac0 SS |
201 | |
202 | gdb_test "show circular-trace-buffer" "Target's use of circular trace buffer is on." "show circular-trace-buffer (on)" | |
203 | ||
e68d8fd4 MS |
204 | gdb_test_no_output "set circular-trace-buffer off" \ |
205 | "set circular-trace-buffer off" | |
4daf5ac0 SS |
206 | |
207 | gdb_test "show circular-trace-buffer" "Target's use of circular trace buffer is off." "show circular-trace-buffer (off)" | |
208 | ||
c906108c SS |
209 | # Body of test encased in a proc so we can return prematurely. |
210 | if { ![gdb_trace_circular_tests] } then { | |
211 | # Set trace buffer attributes back to normal | |
212 | trace_buffer_normal; | |
213 | } | |
214 | ||
215 | # Finished! | |
de7ff789 | 216 | gdb_test "tfind none" ".*" "" |