1 // SPDX-License-Identifier: GPL-2.0-only
18 #include "perf-sys.h"
31 	printf("USAGE: sampleip [-F freq] [duration]\n");  in usage()
32 	printf("       -F freq    # sample frequency (Hertz), default 99\n");  in usage()
36 static int sampling_start(int freq, struct bpf_program *prog,  in sampling_start()  argument
43 		.freq = 1,  in sampling_start()
44 		.sample_period = freq,  in sampling_start()
50 		pmu_fd = sys_perf_event_open(&pe_sample_attr, -1 /* pid */, i,  in sampling_start()
51 					    -1 /* group_fd */, 0 /* flags */);  in sampling_start()
86 	return ((struct ipcount *)p1)->count - ((struct ipcount *)p2)->count;  in count_cmp()
94 	int i, max;  in print_ip_map()  local
96 	printf("%-19s %-32s %s\n", "ADDR", "KSYM", "COUNT");  in print_ip_map()
106 	max = i;  in print_ip_map()
109 	qsort(counts, max, sizeof(struct ipcount), count_cmp);  in print_ip_map()
110 	for (i = 0; i < max; i++) {  in print_ip_map()
118 			printf("0x%-17llx %-32s %u\n", counts[i].ip, sym->name,  in print_ip_map()
121 			printf("0x%-17llx %-32s %u\n", counts[i].ip, "(user)",  in print_ip_map()
126 	if (max == MAX_IPS) {  in print_ip_map()
127 		printf("WARNING: IP hash was full (max %d entries); ", max);  in print_ip_map()
141 	int opt, freq = DEFAULT_FREQ, secs = DEFAULT_SECS, error = 1;  in main()  local
148 	while ((opt = getopt(argc, argv, "F:h")) != -1) {  in main()
151 			freq = atoi(optarg);  in main()
159 	if (argc - optind == 1)  in main()
161 	if (freq == 0 || secs == 0) {  in main()
217 	printf("Sampling at %d Hertz for %d seconds. Ctrl-C also ends.\n",  in main()
218 	       freq, secs);  in main()
219 	if (sampling_start(freq, prog, links) != 0)  in main()