35 		printf("ksym not found. Is kallsyms loaded?\n");  in print_ksym()
39 	printf("%s;", sym->name);  in print_ksym()
50 	printf("%llx;", addr);  in print_addr()
67 	printf("%3lld %s;", count, key->comm);  in print_stack()
69 		printf("---;");  in print_stack()
74 	printf("-;");  in print_stack()
76 		printf("---;");  in print_stack()
82 		printf("\r");  in print_stack()
84 		printf("\n");  in print_stack()
87 		printf("stackmap collisions seen. Consider increasing size\n");  in print_stack()
90 		printf("err stackid %d %d\n", key->kernstack, key->userstack);  in print_stack()
114 	printf("\n");  in print_stacks()
116 		printf("BUG kernel stack doesn't contain sys_read() and sys_write()\n");  in print_stacks()
130 		printf("failed to generate some load with dd: %s\n", strerror(errno));  in generate_load()
144 		printf("malloc of links failed\n");  in test_perf_event_all_cpu()
155 			printf("sys_perf_event_open failed\n");  in test_perf_event_all_cpu()
160 			printf("bpf_program__attach_perf_event failed\n");  in test_perf_event_all_cpu()
194 		printf("sys_perf_event_open failed\n");  in test_perf_event_task()
199 		printf("bpf_program__attach_perf_event failed\n");  in test_perf_event_task()
267 	printf("Test HW_CPU_CYCLES\n");  in test_bpf_perf_event()
271 	printf("Test SW_CPU_CLOCK\n");  in test_bpf_perf_event()
275 	printf("Test HW_CACHE_L1D\n");  in test_bpf_perf_event()
279 	printf("Test HW_CACHE_BPU\n");  in test_bpf_perf_event()
283 	printf("Test Instruction Retired\n");  in test_bpf_perf_event()
287 	printf("Test Lock Load\n");  in test_bpf_perf_event()
291 	printf("*** PASS ***\n");  in test_bpf_perf_event()
307 		printf("failed to process /proc/kallsyms\n");  in main()
313 		printf("opening BPF object file failed\n");  in main()
320 		printf("finding a prog in obj file failed\n");  in main()
326 		printf("loading BPF object file failed\n");  in main()
333 		printf("finding a counts/stackmap map in obj file failed\n");  in main()
342 		printf("couldn't spawn process\n");  in main()