1 // SPDX-License-Identifier: GPL-2.0
21 #include "parse-events.h"
32 #include "util/synthetic-events.h"
52 	struct rb_node **node = &tested_sections->rb_node;  in tested_code_insert_or_exists()
61 		cmp = strcmp(path, data->path);  in tested_code_insert_or_exists()
63 			if (addr < data->addr)  in tested_code_insert_or_exists()
64 				cmp = -1;  in tested_code_insert_or_exists()
65 			else if (addr > data->addr)  in tested_code_insert_or_exists()
72 			node = &(*node)->rb_left;  in tested_code_insert_or_exists()
74 			node = &(*node)->rb_right;  in tested_code_insert_or_exists()
81 	data->addr = addr;  in tested_code_insert_or_exists()
82 	strlcpy(data->path, path, sizeof(data->path));  in tested_code_insert_or_exists()
83 	rb_link_node(&data->rb_node, parent, node);  in tested_code_insert_or_exists()
84 	rb_insert_color(&data->rb_node, tested_sections);  in tested_code_insert_or_exists()
122 		(*buf_len)--;  in read_objdump_chunk()
139 		unsigned char *chunk_end = chunk_start + bytes_read - 1;  in read_objdump_chunk()
147 			chunk_end--;  in read_objdump_chunk()
200 			err = -1;  in read_objdump_output()
219 		off = addr - start_addr;  in read_objdump_output()
222 		written_bytes = MIN(read_bytes, *len - off);  in read_objdump_output()
228 	*len -= off_last;  in read_objdump_output()
236  * Only gets GNU objdump version. Returns 0 for llvm-objdump.
250 	fmt = "%s --version";  in objdump_version()
253 		return -1;  in objdump_version()
259 		return -1;  in objdump_version()
261 	/* Get first line of objdump --version output */  in objdump_version()
266 		return -1;  in objdump_version()
271 		// version is last part of first line of objdump --version output.  in objdump_version()
275 		// Convert version into a format we can compare with  in objdump_version()
308 		return -1;  in read_via_objdump()
319 			 * instructions are aligned along 2-byte intervals and  in read_via_objdump()
320 			 * can be either 2-bytes or 4-bytes. This makes it  in read_via_objdump()
321 			 * possible that the stop-address lands in the middle of  in read_via_objdump()
322 			 * a 4-byte instruction. Increase the stop_address by  in read_via_objdump()
324 			 * leave the len as-is so only the expected number of  in read_via_objdump()
331 	fmt = "%s -z -d --start-address=0x%"PRIx64" --stop-address=0x%"PRIx64" %s";  in read_via_objdump()
335 		return -1;  in read_via_objdump()
345 		return -1;  in read_via_objdump()
393 			pr_debug("Hypervisor address can not be resolved - skipping\n");  in read_object_code()
398 		err = -1;  in read_object_code()
405 		pr_debug("Unexpected kernel address - skipping\n");  in read_object_code()
410 	 * Don't retest the same addresses. objdump struggles with kcore - try  in read_object_code()
416 		pr_debug("Already tested %s @ %#"PRIx64" - skipping\n",  in read_object_code()
428 		len = map__end(al.map) - addr;  in read_object_code()
445 		err = -1;  in read_object_code()
454 		err = -1;  in read_object_code()
464 			err = -1;  in read_object_code()
481 		 * The kernel maps are inaccurate - assume objdump is right in  in read_object_code()
486 			len -= ret;  in read_object_code()
495 				pr_debug(" - skipping\n");  in read_object_code()
497 				err = -1;  in read_object_code()
504 		err = -1;  in read_object_code()
515 		err = -1;  in read_object_code()
528 	struct perf_sample sample;  in process_sample_event()  local
532 	perf_sample__init(&sample, /*all=*/false);  in process_sample_event()
533 	ret = evlist__parse_sample(evlist, event, &sample);  in process_sample_event()
536 		ret = -1;  in process_sample_event()
540 	thread = machine__findnew_thread(machine, sample.pid, sample.tid);  in process_sample_event()
543 		ret = -1;  in process_sample_event()
547 	ret = read_object_code(sample.ip, READLEN, sample.cpumode, thread,  in process_sample_event()
551 	perf_sample__exit(&sample);  in process_sample_event()
558 	if (event->header.type == PERF_RECORD_SAMPLE)  in process_event()
562 	if (event->header.type == PERF_RECORD_THROTTLE ||  in process_event()
563 	    event->header.type == PERF_RECORD_UNTHROTTLE)  in process_event()
566 	if (event->header.type < PERF_RECORD_MAX) {  in process_event()
572 				 event->header.type);  in process_event()
586 	for (i = 0; i < evlist->core.nr_mmaps; i++) {  in process_events()
587 		md = &evlist->mmap[i];  in process_events()
588 		if (perf_mmap__read_init(&md->core) < 0)  in process_events()
591 		while ((event = perf_mmap__read_event(&md->core)) != NULL) {  in process_events()
593 			perf_mmap__consume(&md->core);  in process_events()
597 		perf_mmap__read_done(&md->core);  in process_events()
604 	return *(int *)a - *(int *)b;  in comp()
612 		buf[i] = ARRAY_SIZE(buf) - i - 1;  in do_sort_something()
649 	const char *test_file_name = "temp-perf-code-reading-test-file--";  in fs_something()
697 	int err = -1, ret;  in do_test_code_reading()
702 	const char *events[] = { "cycles", "cycles:u", "cpu-clock", "cpu-clock:u", NULL };  in do_test_code_reading()
775 		perf_evlist__set_maps(&evlist->core, cpus, threads);  in do_test_code_reading()
788 			evsel->core.attr.comm = 1;  in do_test_code_reading()
789 			evsel->core.attr.disabled = 1;  in do_test_code_reading()
790 			evsel->core.attr.enable_on_exec = 0;  in do_test_code_reading()
803 			perf_evlist__set_maps(&evlist->core, NULL, NULL);  in do_test_code_reading()
875 		return -1;  in test__code_reading()