274c3170ee2b9f19b901a3b09370250827d29db3
[babeltrace.git] / src / plugins / lttng-utils / debug-info / trace-ir-data-copy.c
1 /*
2 * Babeltrace - Trace IR data object copy
3 *
4 * Copyright (c) 2015-2019 EfficiOS Inc. and Linux Foundation
5 * Copyright (c) 2019 Francis Deslauriers <francis.deslauriers@efficios.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26 #define BT_COMP_LOG_SELF_COMP self_comp
27 #define BT_LOG_OUTPUT_LEVEL log_level
28 #define BT_LOG_TAG "PLUGIN/FLT.LTTNG-UTILS.DEBUG-INFO/TRACE-IR-DATA-COPY"
29 #include "plugins/comp-logging.h"
30
31 #include <inttypes.h>
32 #include <stdint.h>
33
34 #include "common/assert.h"
35
36 #include "trace-ir-data-copy.h"
37
38 BT_HIDDEN
39 void copy_trace_content(const bt_trace *in_trace, bt_trace *out_trace,
40 bt_logging_level log_level, bt_self_component *self_comp)
41 {
42 bt_trace_set_name_status status;
43 const char *trace_name;
44 uint64_t i, env_field_count;
45
46 BT_COMP_LOGD("Copying content of trace: in-t-addr=%p, out-t-addr=%p",
47 in_trace, out_trace);
48 trace_name = bt_trace_get_name(in_trace);
49 /* Copy the trace name. */
50 if (trace_name) {
51 status = bt_trace_set_name(out_trace, trace_name);
52 if (status != BT_TRACE_SET_NAME_STATUS_OK) {
53 BT_COMP_LOGE("Cannot set trace's name: trace-addr=%p, name=\"%s\"",
54 out_trace, trace_name);
55 bt_current_thread_clear_error();
56 goto end;
57 }
58 }
59
60 /*
61 * Do not copy the trace UUID as it may be modified and should
62 * no longer have the same UUID.
63 */
64
65 /*
66 * Go over all the entries in the environment section of the
67 * trace and copy the content to the new trace.
68 */
69 env_field_count = bt_trace_get_environment_entry_count(in_trace);
70 for (i = 0; i < env_field_count; i++) {
71 const char *value_name;
72 const bt_value *value = NULL;
73 bt_trace_set_environment_entry_status set_env_status;
74
75 bt_trace_borrow_environment_entry_by_index_const(
76 in_trace, i, &value_name, &value);
77
78 BT_COMP_LOGD("Copying trace environnement entry: "
79 "index=%" PRId64 ", value-addr=%p, value-name=%s",
80 i, value, value_name);
81
82 BT_ASSERT(value_name);
83 BT_ASSERT(value);
84
85 if (bt_value_is_signed_integer(value)) {
86 set_env_status =
87 bt_trace_set_environment_entry_integer(
88 out_trace, value_name,
89 bt_value_integer_signed_get(
90 value));
91 } else if (bt_value_is_string(value)) {
92 set_env_status =
93 bt_trace_set_environment_entry_string(
94 out_trace, value_name,
95 bt_value_string_get(value));
96 } else {
97 abort();
98 }
99
100 if (set_env_status !=
101 BT_TRACE_SET_ENVIRONMENT_ENTRY_STATUS_OK) {
102 BT_COMP_LOGE("Cannot copy trace's environment: "
103 "trace-addr=%p, name=\"%s\"",
104 out_trace, trace_name);
105 bt_current_thread_clear_error();
106 goto end;
107 }
108 }
109
110 BT_COMP_LOGD("Copied content of trace: in-t-addr=%p, out-t-addr=%p",
111 in_trace, out_trace);
112 end:
113 return;
114 }
115
116 BT_HIDDEN
117 void copy_stream_content(const bt_stream *in_stream, bt_stream *out_stream,
118 bt_logging_level log_level, bt_self_component *self_comp)
119 {
120 const char *stream_name;
121 bt_stream_set_name_status status;
122
123 BT_COMP_LOGD("Copying content of stream: in-s-addr=%p, out-s-addr=%p",
124 in_stream, out_stream);
125
126 stream_name = bt_stream_get_name(in_stream);
127 if (stream_name) {
128 status = bt_stream_set_name(out_stream, stream_name);
129 if (status != BT_STREAM_SET_NAME_STATUS_OK) {
130 BT_COMP_LOGE("Cannot set stream's name: stream-addr=%p, "
131 "name=%s", out_stream, stream_name);
132 goto end;
133 }
134 }
135
136 BT_COMP_LOGD("Copied content of stream: in-s-addr=%p, out-s-addr=%p",
137 in_stream, out_stream);
138 end:
139 return;
140 }
141
142 BT_HIDDEN
143 void copy_packet_content(const bt_packet *in_packet, bt_packet *out_packet,
144 bt_logging_level log_level, bt_self_component *self_comp)
145 {
146 const bt_field *in_context_field;
147 bt_field *out_context_field;
148
149 BT_COMP_LOGD("Copying content of packet: in-p-addr=%p, out-p-addr=%p",
150 in_packet, out_packet);
151
152 /* Copy context field. */
153 in_context_field = bt_packet_borrow_context_field_const(in_packet);
154 if (in_context_field) {
155 out_context_field = bt_packet_borrow_context_field(out_packet);
156 BT_ASSERT(out_context_field);
157 copy_field_content(in_context_field, out_context_field,
158 log_level, self_comp);
159 }
160
161 BT_COMP_LOGD("Copied content of packet: in-p-addr=%p, out-p-addr=%p",
162 in_packet, out_packet);
163 return;
164 }
165
166 BT_HIDDEN
167 void copy_event_content(const bt_event *in_event, bt_event *out_event,
168 bt_logging_level log_level, bt_self_component *self_comp)
169 {
170 const bt_field *in_common_ctx_field, *in_specific_ctx_field,
171 *in_payload_field;
172 bt_field *out_common_ctx_field, *out_specific_ctx_field,
173 *out_payload_field;
174
175 BT_COMP_LOGD("Copying content of event: in-e-addr=%p, out-e-addr=%p",
176 in_event, out_event);
177 in_common_ctx_field =
178 bt_event_borrow_common_context_field_const(in_event);
179 if (in_common_ctx_field) {
180 out_common_ctx_field =
181 bt_event_borrow_common_context_field(out_event);
182 BT_ASSERT(out_common_ctx_field);
183 copy_field_content(in_common_ctx_field,
184 out_common_ctx_field, log_level, self_comp);
185 }
186
187 in_specific_ctx_field =
188 bt_event_borrow_specific_context_field_const(in_event);
189 if (in_specific_ctx_field) {
190 out_specific_ctx_field =
191 bt_event_borrow_specific_context_field(out_event);
192 BT_ASSERT(out_specific_ctx_field);
193 copy_field_content(in_specific_ctx_field,
194 out_specific_ctx_field, log_level, self_comp);
195 }
196
197 in_payload_field = bt_event_borrow_payload_field_const(in_event);
198 if (in_payload_field) {
199 out_payload_field = bt_event_borrow_payload_field(out_event);
200 BT_ASSERT(out_payload_field);
201 copy_field_content(in_payload_field,
202 out_payload_field, log_level, self_comp);
203 }
204
205 BT_COMP_LOGD("Copied content of event: in-e-addr=%p, out-e-addr=%p",
206 in_event, out_event);
207 }
208
209 BT_HIDDEN
210 void copy_field_content(const bt_field *in_field, bt_field *out_field,
211 bt_logging_level log_level, bt_self_component *self_comp)
212 {
213 bt_field_class_type in_fc_type, out_fc_type;
214
215 in_fc_type = bt_field_get_class_type(in_field);
216 out_fc_type = bt_field_get_class_type(out_field);
217 BT_ASSERT(in_fc_type == out_fc_type);
218
219 BT_COMP_LOGT("Copying content of field: in-f-addr=%p, out-f-addr=%p",
220 in_field, out_field);
221 switch (in_fc_type) {
222 case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER:
223 case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
224 bt_field_integer_unsigned_set_value(out_field,
225 bt_field_integer_unsigned_get_value(in_field));
226 break;
227 case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER:
228 case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
229 bt_field_integer_signed_set_value(out_field,
230 bt_field_integer_signed_get_value(in_field));
231 break;
232 case BT_FIELD_CLASS_TYPE_REAL:
233 bt_field_real_set_value(out_field,
234 bt_field_real_get_value(in_field));
235 break;
236 case BT_FIELD_CLASS_TYPE_STRING:
237 {
238 const char *str = bt_field_string_get_value(in_field);
239 bt_field_string_set_value_status status =
240 bt_field_string_set_value(out_field, str);
241 if (status != BT_FIELD_STRING_SET_VALUE_STATUS_OK) {
242 BT_COMP_LOGE("Cannot set string field's value: "
243 "str-field-addr=%p, str=%s" PRId64,
244 out_field, str);
245 bt_current_thread_clear_error();
246
247 }
248 break;
249 }
250 case BT_FIELD_CLASS_TYPE_STRUCTURE:
251 {
252 uint64_t i, nb_member_struct;
253 const bt_field *in_member_field;
254 bt_field *out_member_field;
255 const bt_field_class *in_field_class;
256 const char *in_member_name;
257
258 in_field_class = bt_field_borrow_class_const(in_field);
259 nb_member_struct = bt_field_class_structure_get_member_count(
260 in_field_class);
261
262 /*
263 * Iterate over the fields by names in the input field to avoid
264 * problem if the struct fields are not in the same order after
265 * the debug-info was added.
266 */
267 for (i = 0; i < nb_member_struct; i++) {
268 const bt_field_class_structure_member *member =
269 bt_field_class_structure_borrow_member_by_index_const(
270 in_field_class, i);
271
272 in_member_name =
273 bt_field_class_structure_member_get_name(
274 member);
275 in_member_field =
276 bt_field_structure_borrow_member_field_by_name_const(
277 in_field, in_member_name);
278 out_member_field =
279 bt_field_structure_borrow_member_field_by_name(
280 out_field, in_member_name);
281
282 copy_field_content(in_member_field,
283 out_member_field, log_level, self_comp);
284 }
285 break;
286 }
287 case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
288 /* fall through */
289 case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
290 {
291 const bt_field *in_element_field;
292 bt_field *out_element_field;
293 uint64_t i, array_len;
294 bt_field_array_dynamic_set_length_status set_len_status;
295
296 array_len = bt_field_array_get_length(in_field);
297
298 if (in_fc_type == BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY) {
299 set_len_status = bt_field_array_dynamic_set_length(
300 out_field, array_len);
301 if (set_len_status !=
302 BT_FIELD_DYNAMIC_ARRAY_SET_LENGTH_STATUS_OK) {
303 BT_COMP_LOGE("Cannot set dynamic array field's "
304 "length field: field-addr=%p, "
305 "length=%" PRIu64, out_field, array_len);
306 bt_current_thread_clear_error();
307 }
308 }
309
310 for (i = 0; i < array_len; i++) {
311 in_element_field =
312 bt_field_array_borrow_element_field_by_index_const(
313 in_field, i);
314 out_element_field =
315 bt_field_array_borrow_element_field_by_index(
316 out_field, i);
317 copy_field_content(in_element_field, out_element_field,
318 log_level, self_comp);
319 }
320 break;
321 }
322 case BT_FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR:
323 case BT_FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_SELECTOR:
324 case BT_FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_SELECTOR:
325 {
326 bt_field_variant_select_option_field_by_index_status sel_opt_status;
327 uint64_t in_selected_option_idx;
328 const bt_field *in_option_field;
329 bt_field *out_option_field;
330
331 in_selected_option_idx =
332 bt_field_variant_get_selected_option_field_index(
333 in_field);
334 sel_opt_status = bt_field_variant_select_option_field_by_index(out_field,
335 in_selected_option_idx);
336 if (sel_opt_status !=
337 BT_FIELD_VARIANT_SELECT_OPTION_FIELD_STATUS_OK) {
338 BT_COMP_LOGE("Cannot select variant field's option field: "
339 "var-field-addr=%p, opt-index=%" PRId64,
340 out_field, in_selected_option_idx);
341 bt_current_thread_clear_error();
342 }
343
344 in_option_field = bt_field_variant_borrow_selected_option_field_const(in_field);
345 out_option_field = bt_field_variant_borrow_selected_option_field(out_field);
346
347 copy_field_content(in_option_field, out_option_field,
348 log_level, self_comp);
349
350 break;
351 }
352 default:
353 abort();
354 }
355 BT_COMP_LOGT("Copied content of field: in-f-addr=%p, out-f-addr=%p",
356 in_field, out_field);
357 }
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