dtrace-probe.exp revision 1.1.1.1 
1# Copyright (C) 2014, 2015 Free Software Foundation, Inc.
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
5# the Free Software Foundation; either version 3 of the License, or
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
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16load_lib "dtrace.exp"
17
18# Run the tests.
19# This returns -1 on failure to compile or start, 0 otherwise.
20proc dtrace_test {} {
21    global testfile hex srcfile binfile
22
23    standard_testfile
24
25    if {[dtrace_build_usdt_test_program] == -1} {
26        untested "could not compile test program"
27        return -1
28    }
29
30    clean_restart ${binfile}
31
32    if ![runto_main] {
33        return -1
34    }
35
36    gdb_test "print \$_probe_argc" "No probe at PC $hex" \
37        "check argument not at probe point"
38
39    # Test the 'info probes' command.
40    gdb_test "info probes dtrace" \
41        "test *progress-counter *$hex +no.*test *two-locations *$hex +always.*test *two-locations *$hex +always.*" \
42        "info probes dtrace"
43
44    # Disabling the probe test:two-locations shall have no effect,
45    # since no is-enabled probes are defined for it in the object
46    # file.
47
48    gdb_test "disable probe test two-locations" \
49	"Probe test:two-locations cannot be disabled.*" \
50	"disable probe test two-locations"
51
52    # On the other hand, the probe test:progress-counter can be
53    # enabled and then disabled again.
54
55    gdb_test "enable probe test progress-counter" \
56	"Probe test:progress-counter enabled.*" \
57	"enable probe test progress-counter"
58
59    gdb_test "disable probe test progress-counter" \
60	"Probe test:progress-counter disabled.*" \
61	"disable probe test progress-counter"
62
63    # Since test:progress-counter is disabled we can run to the second
64    # instance of the test:two-locations probe.
65
66    if {![runto "-probe-dtrace test:two-locations"]} {
67	fail "run to the first test:two-locations probe point"
68    }
69    if {![runto "-probe-dtrace test:two-locations"]} {
70	fail "run to the second test:two-locations probe point"
71    }
72
73    # Go back to the breakpoint on main() and enable the
74    # test:progress-counter probe.  Set a breakpoint on it and see
75    # that it gets reached.
76
77    if ![runto_main] {
78	return -1
79    }
80
81    gdb_test "enable probe test progress-counter" \
82	"Probe test:progress-counter enabled.*" \
83	"enable probe test progress-counter"
84
85    gdb_test "break -probe-dtrace test:progress-counter" \
86	".*Breakpoint \[0-9\]+ .*" "set breakpoint in test:progress-counter"
87    gdb_continue_to_breakpoint "test:progress-counter"
88
89    # Test probe arguments.
90    gdb_test "print \$_probe_argc" " = 2" \
91        "print \$_probe_argc for probe progress-counter"
92    gdb_test "print \$_probe_arg0" \
93        " = $hex \"application\"" \
94        "print \$_probe_arg0 for probe progress-counter"
95    gdb_test "print \$_probe_arg1" " = 1" \
96        "print \$_probe_arg1 for probe progress-counter"
97
98    # Set a breakpoint with multiple probe locations.
99    gdb_test "break -pdtrace test:two-locations" \
100        "Breakpoint \[0-9\]+ at $hex.*2 locations.*" \
101        "set multi-location probe breakpoint (probe two-locations)"
102
103    return 0
104}
105
106dtrace_test
107