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808cb744 JR |
1 | /* |
2 | * Unit tests for the kernel probe location API. | |
3 | * | |
4 | * Copyright (C) 2020 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> | |
5 | * | |
6 | * SPDX-License-Identifier: LGPL-2.1-only | |
7 | * | |
8 | */ | |
9 | ||
808cb744 JR |
10 | #include <inttypes.h> |
11 | #include <stdio.h> | |
12 | #include <string.h> | |
13 | #include <unistd.h> | |
14 | ||
15 | #include <tap/tap.h> | |
16 | ||
17 | #include <common/payload-view.h> | |
18 | #include <common/payload.h> | |
19 | #include <lttng/kernel-probe-internal.h> | |
20 | #include <lttng/kernel-probe.h> | |
21 | ||
22 | /* For error.h */ | |
23 | int lttng_opt_quiet = 1; | |
24 | int lttng_opt_verbose; | |
25 | int lttng_opt_mi; | |
26 | ||
27 | #define NUM_TESTS 24 | |
28 | ||
29 | static void test_kernel_probe_location_address(void) | |
30 | { | |
31 | struct lttng_kernel_probe_location *location = NULL; | |
32 | struct lttng_kernel_probe_location *location_from_buffer = NULL; | |
33 | enum lttng_kernel_probe_location_status status; | |
34 | enum lttng_kernel_probe_location_type type; | |
35 | uint64_t address = 50, _address; | |
36 | struct lttng_payload payload; | |
37 | ||
38 | diag("Testing kernel probe location address"); | |
39 | ||
40 | lttng_payload_init(&payload); | |
41 | ||
42 | location = lttng_kernel_probe_location_address_create(address); | |
43 | ok(location, "Location object"); | |
44 | ||
45 | type = lttng_kernel_probe_location_get_type(location); | |
46 | ok(LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS == type, | |
47 | "Location type got %d expected %d", type, | |
48 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS); | |
49 | ||
50 | status = lttng_kernel_probe_location_address_get_address( | |
51 | location, &_address); | |
52 | ok(status == LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK, "Getting address"); | |
53 | ok(address == _address, | |
54 | "Address is equal. Got %" PRIu64 " expected %" PRIu64, | |
55 | _address, address); | |
56 | ||
57 | ok(lttng_kernel_probe_location_serialize(location, &payload) > 0, | |
58 | "Serializing"); | |
59 | { | |
60 | struct lttng_payload_view view = | |
61 | lttng_payload_view_from_payload( | |
62 | &payload, 0, -1); | |
63 | ok(lttng_kernel_probe_location_create_from_payload( | |
64 | &view, &location_from_buffer) > 0, | |
65 | "Deserializing"); | |
66 | } | |
67 | ||
68 | type = lttng_kernel_probe_location_get_type(location_from_buffer); | |
69 | ok(LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS == type, | |
70 | "Location from buffer type got %d expected %d", type, | |
71 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS); | |
72 | ||
73 | status = lttng_kernel_probe_location_address_get_address( | |
74 | location_from_buffer, &_address); | |
75 | ok(status == LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK, "Getting address"); | |
76 | ok(address == _address, | |
77 | "Address from buffer is equal. Got %" PRIu64 | |
78 | " expected %" PRIu64, | |
79 | _address, address); | |
80 | ||
81 | ok(lttng_kernel_probe_location_is_equal(location, location_from_buffer), | |
82 | "serialized and from buffer are equal"); | |
83 | ||
84 | lttng_payload_reset(&payload); | |
85 | lttng_kernel_probe_location_destroy(location); | |
86 | lttng_kernel_probe_location_destroy(location_from_buffer); | |
87 | } | |
88 | ||
89 | static void test_kernel_probe_location_symbol(void) | |
90 | { | |
91 | struct lttng_kernel_probe_location *location = NULL; | |
92 | struct lttng_kernel_probe_location *location_from_buffer = NULL; | |
93 | enum lttng_kernel_probe_location_status status; | |
94 | enum lttng_kernel_probe_location_type type; | |
95 | uint64_t offset = 50, _offset; | |
96 | const char *symbol = "Une_bonne", *_symbol; | |
97 | struct lttng_payload payload; | |
98 | ||
99 | diag("Testing kernel probe location symbol"); | |
100 | ||
101 | lttng_payload_init(&payload); | |
102 | ||
103 | location = lttng_kernel_probe_location_symbol_create(symbol, offset); | |
104 | ok(location, "Location object"); | |
105 | ||
106 | type = lttng_kernel_probe_location_get_type(location); | |
107 | ok(LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET == type, | |
108 | "Location type got %d expected %d", type, | |
109 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET); | |
110 | ||
111 | _symbol = lttng_kernel_probe_location_symbol_get_name(location); | |
112 | ok(_symbol, "Getting symbol name"); | |
113 | ok(!strncmp(symbol, _symbol, strlen(symbol)), | |
114 | "Symbol name is equal. Got %s, expected %s", _symbol, | |
115 | symbol); | |
116 | ||
117 | status = lttng_kernel_probe_location_symbol_get_offset( | |
118 | location, &_offset); | |
119 | ok(status == LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK, "Getting offset"); | |
120 | ok(offset == _offset, | |
121 | "Offset is equal. Got %" PRIu64 " expected %" PRIu64, | |
122 | _offset, offset); | |
123 | ||
124 | ok(lttng_kernel_probe_location_serialize(location, &payload) > 0, | |
125 | "Serializing"); | |
126 | { | |
127 | struct lttng_payload_view view = | |
128 | lttng_payload_view_from_payload( | |
129 | &payload, 0, -1); | |
130 | ok(lttng_kernel_probe_location_create_from_payload( | |
131 | &view, &location_from_buffer) > 0, | |
132 | "Deserializing"); | |
133 | } | |
134 | ||
135 | type = lttng_kernel_probe_location_get_type(location_from_buffer); | |
136 | ok(LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET == type, | |
137 | "Location from buffer type got %d expected %d", type, | |
138 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET); | |
139 | ||
140 | _symbol = lttng_kernel_probe_location_symbol_get_name( | |
141 | location_from_buffer); | |
142 | ok(_symbol, "Getting symbol name"); | |
143 | ok(!strncmp(symbol, _symbol, strlen(symbol)), | |
144 | "Symbol name is equal. Got %s, expected %s", _symbol, | |
145 | symbol); | |
146 | ||
147 | status = lttng_kernel_probe_location_symbol_get_offset( | |
148 | location_from_buffer, &_offset); | |
149 | ok(status == LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK, "Getting offset"); | |
150 | ok(offset == _offset, | |
151 | "Offset is equal. Got %" PRIu64 " expected %" PRIu64, | |
152 | _offset, offset); | |
153 | ||
154 | ok(lttng_kernel_probe_location_is_equal(location, location_from_buffer), | |
155 | "serialized and from buffer are equal"); | |
156 | ||
157 | lttng_payload_reset(&payload); | |
158 | lttng_kernel_probe_location_destroy(location); | |
159 | lttng_kernel_probe_location_destroy(location_from_buffer); | |
160 | } | |
161 | ||
162 | int main(int argc, const char *argv[]) | |
163 | { | |
164 | plan_tests(NUM_TESTS); | |
165 | test_kernel_probe_location_address(); | |
166 | test_kernel_probe_location_symbol(); | |
167 | return exit_status(); | |
168 | } |