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618f726f | 1 | # Copyright 2011-2016 Free Software Foundation, Inc. |
405f8e94 SS |
2 | # This program is free software; you can redistribute it and/or modify |
3 | # it under the terms of the GNU General Public License as published by | |
4 | # the Free Software Foundation; either version 3 of the License, or | |
5 | # (at your option) any later version. | |
6 | # | |
7 | # This program is distributed in the hope that it will be useful, | |
8 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | # GNU General Public License for more details. | |
11 | # | |
12 | # You should have received a copy of the GNU General Public License | |
13 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
14 | ||
4ec70201 | 15 | load_lib "trace-support.exp" |
405f8e94 | 16 | |
497a5eb0 | 17 | standard_testfile |
405f8e94 | 18 | set executable $testfile |
405f8e94 SS |
19 | set expfile $testfile.exp |
20 | ||
21 | # Some targets have leading underscores on assembly symbols. | |
22 | set additional_flags [gdb_target_symbol_prefix_flags] | |
23 | ||
24 | if [prepare_for_testing $expfile $executable $srcfile \ | |
25 | [list debug $additional_flags]] { | |
26 | untested "failed to prepare for trace tests" | |
27 | return -1 | |
28 | } | |
29 | ||
30 | if ![runto_main] { | |
bc6c7af4 | 31 | fail "can't run to main to check for trace support" |
405f8e94 SS |
32 | return -1 |
33 | } | |
34 | ||
35 | if ![gdb_target_supports_trace] { | |
36 | unsupported "target does not support trace" | |
37 | return -1 | |
38 | } | |
39 | ||
c0d4d1c0 | 40 | set libipa [get_in_proc_agent] |
952ebca5 | 41 | set remote_libipa [gdb_load_shlib $libipa] |
405f8e94 SS |
42 | |
43 | # Can't use prepare_for_testing, because that splits compiling into | |
44 | # building objects and then linking, and we'd fail with "linker input | |
45 | # file unused because linking not done" when building the object. | |
46 | ||
47 | if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \ | |
48 | executable [list debug $additional_flags shlib=$libipa] ] != "" } { | |
49 | untested "failed to compile ftrace tests" | |
50 | return -1 | |
51 | } | |
52 | clean_restart ${executable} | |
53 | ||
54 | if ![runto_main] { | |
bc6c7af4 | 55 | fail "can't run to main for ftrace tests" |
405f8e94 SS |
56 | return 0 |
57 | } | |
58 | ||
59 | proc run_trace_experiment {} { | |
60 | ||
61 | gdb_test "continue" \ | |
62 | ".*Breakpoint \[0-9\]+, begin .*" \ | |
63 | "advance to trace begin" | |
64 | ||
65 | gdb_test_no_output "tstart" "start trace experiment" | |
66 | ||
67 | gdb_test "continue" \ | |
68 | ".*Breakpoint \[0-9\]+, end .*" \ | |
69 | "advance through tracing" | |
70 | ||
71 | gdb_test "tstatus" ".*Trace .*" "check on trace status" | |
72 | ||
73 | gdb_test "tstop" "" "" | |
74 | } | |
75 | ||
76 | proc test_fast_tracepoints {} { | |
61638e15 | 77 | global gdb_prompt |
405f8e94 SS |
78 | |
79 | set fourgood 0 | |
80 | ||
81 | gdb_test "break begin" ".*" "" | |
82 | ||
83 | gdb_test "break end" ".*" "" | |
84 | ||
85 | gdb_test "print gdb_agent_gdb_trampoline_buffer_error" ".*" "" | |
86 | ||
678b48b7 MK |
87 | gdb_test "ftrace set_point" "Fast tracepoint .*" \ |
88 | "fast tracepoint at a long insn" | |
405f8e94 | 89 | |
678b48b7 MK |
90 | gdb_trace_setactions "collect at set_point: define actions" \ |
91 | "" \ | |
92 | "collect globvar, anarg" "^$" | |
405f8e94 | 93 | |
678b48b7 | 94 | # Make a test of shorter fast tracepoints, 32-bit x86 only |
405f8e94 | 95 | |
678b48b7 | 96 | if { [istarget "i?86-*-*"] } { |
405f8e94 | 97 | |
678b48b7 MK |
98 | # A Linux target needs to be able to allocate trampolines in the |
99 | # 16-bit range, check mmap_min_addr so we can warn testers. | |
100 | if { [istarget "i?86-*-linux*"] } { | |
405f8e94 | 101 | |
678b48b7 | 102 | set minaddr [exec sh -c "cat /proc/sys/vm/mmap_min_addr"] |
405f8e94 | 103 | |
678b48b7 MK |
104 | if { [expr $minaddr > 64512] } { |
105 | warning "mmap_min_addr > 64512, fast tracepoint will fail" | |
106 | warning "do \"sudo sysctl -w vm.mmap_min_addr=32768\" to adjust" | |
107 | } | |
108 | } | |
405f8e94 | 109 | |
678b48b7 MK |
110 | gdb_test_multiple "ftrace four_byter" "set 4-byte fast tracepoint" { |
111 | -re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" { | |
112 | pass "4-byte fast tracepoint could not be set" | |
113 | } | |
114 | -re "Fast tracepoint .*\r\n$gdb_prompt $" { | |
115 | pass "4-byte fast tracepoint is set" | |
116 | set fourgood 1 | |
117 | } | |
118 | } | |
405f8e94 | 119 | |
678b48b7 | 120 | if { $fourgood } { |
405f8e94 | 121 | |
678b48b7 MK |
122 | gdb_trace_setactions "collect at four_byter: define actions" \ |
123 | "" \ | |
124 | "collect globvar, anarg" "^$" | |
125 | } | |
126 | } | |
405f8e94 | 127 | |
678b48b7 | 128 | run_trace_experiment |
405f8e94 | 129 | |
678b48b7 MK |
130 | gdb_test "tfind pc *set_point" "Found trace frame .*" \ |
131 | "tfind set_point frame, first time" | |
405f8e94 | 132 | |
678b48b7 | 133 | gdb_test "print globvar" " = 1" |
405f8e94 | 134 | |
678b48b7 MK |
135 | gdb_test "tfind pc *set_point" "Found trace frame .*" \ |
136 | "tfind set_point frame, second time" | |
405f8e94 | 137 | |
678b48b7 MK |
138 | setup_kfail "gdb/13808" "x86_64-*-linux*" |
139 | gdb_test "print anarg" " = 200" | |
405f8e94 | 140 | |
678b48b7 MK |
141 | gdb_test "tfind start" "Found trace frame .*" \ |
142 | "reset tfinding" | |
405f8e94 | 143 | |
678b48b7 | 144 | if { $fourgood } { |
405f8e94 | 145 | |
678b48b7 MK |
146 | gdb_test "tfind pc *four_byter" "Found trace frame .*" \ |
147 | "tfind four_byter frame, first time" | |
405f8e94 | 148 | |
678b48b7 MK |
149 | gdb_test "print anarg" " = 101" \ |
150 | "look at collected local, first time" | |
405f8e94 | 151 | |
678b48b7 MK |
152 | gdb_test "tfind pc *four_byter" "Found trace frame .*" \ |
153 | "tfind four_byter frame, second time" | |
405f8e94 | 154 | |
678b48b7 MK |
155 | gdb_test "print anarg" " = 201" \ |
156 | "look at collected local, second time" | |
4082afcc | 157 | |
678b48b7 | 158 | } |
4082afcc | 159 | |
678b48b7 MK |
160 | # If debugging with the remote target, try force disabling the |
161 | # fast tracepoints RSP feature, and confirm fast tracepoints | |
162 | # can no longer be downloaded. | |
163 | set test "fast tracepoint could not be downloaded with the feature disabled" | |
164 | if [gdb_is_target_remote] { | |
165 | gdb_test "set remote fast-tracepoints-packet off" | |
166 | ||
167 | gdb_test_multiple "tstart" $test { | |
168 | -re "warning: Target does not support fast tracepoints, downloading .* as regular tracepoint.*\r\n$gdb_prompt $" { | |
169 | pass $test | |
170 | } | |
171 | } | |
172 | } else { | |
173 | unsupported $test | |
405f8e94 SS |
174 | } |
175 | } | |
176 | ||
177 | gdb_reinitialize_dir $srcdir/$subdir | |
178 | ||
952ebca5 | 179 | if { [gdb_test "info sharedlibrary" ".*${remote_libipa}.*" "IPA loaded"] != 0 } { |
bc6c7af4 | 180 | untested "could not find IPA lib loaded" |
405f8e94 SS |
181 | return 1 |
182 | } | |
183 | ||
184 | test_fast_tracepoints |