50 	char buf[256];  in bpf_find_probe_type()  local
53 	ret = snprintf(buf, sizeof(buf), PMU_TYPE_FILE, event_type);  in bpf_find_probe_type()
54 	CHECK_PERROR_RET(ret < 0 || ret >= sizeof(buf));  in bpf_find_probe_type()
56 	fd = open(buf, O_RDONLY);  in bpf_find_probe_type()
59 	ret = read(fd, buf, sizeof(buf));  in bpf_find_probe_type()
61 	CHECK_PERROR_RET(ret < 0 || ret >= sizeof(buf));  in bpf_find_probe_type()
64 	ret = (int)strtol(buf, NULL, 10);  in bpf_find_probe_type()
72 	char buf[256];  in bpf_get_retprobe_bit()  local
75 	ret = snprintf(buf, sizeof(buf), PMU_RETPROBE_FILE, event_type);  in bpf_get_retprobe_bit()
76 	CHECK_PERROR_RET(ret < 0 || ret >= sizeof(buf));  in bpf_get_retprobe_bit()
78 	fd = open(buf, O_RDONLY);  in bpf_get_retprobe_bit()
81 	ret = read(fd, buf, sizeof(buf));  in bpf_get_retprobe_bit()
83 	CHECK_PERROR_RET(ret < 0 || ret >= sizeof(buf));  in bpf_get_retprobe_bit()
84 	CHECK_PERROR_RET(strlen(buf) < strlen("config:"));  in bpf_get_retprobe_bit()
87 	ret = (int)strtol(buf + strlen("config:"), NULL, 10);  in bpf_get_retprobe_bit()
98 	char buf[256];  in test_debug_fs_kprobe()  local
100 	len = sizeof(buf);  in test_debug_fs_kprobe()
102 	err = bpf_task_fd_query(getpid(), event_fd, 0, buf, &len,  in test_debug_fs_kprobe()
111 	if (strcmp(buf, fn_name) != 0 ||  in test_debug_fs_kprobe()
118 		       buf, fd_type, probe_offset, probe_addr);  in test_debug_fs_kprobe()
126 	char *buf, __u32 *buf_len, __u32 *prog_id, __u32 *fd_type,  in test_nondebug_fs_kuprobe_common()  argument
165 	CHECK_PERROR_RET(bpf_task_fd_query(getpid(), fd, 0, buf, buf_len,  in test_nondebug_fs_kuprobe_common()
178 				  char *buf, __u32 buf_len)  in test_nondebug_fs_probe()  argument
186 					      buf, &buf_len, &prog_id,  in test_nondebug_fs_probe()
203 		if (strcmp(name, buf) != 0) {  in test_nondebug_fs_probe()
204 			printf("FAIL: %s, incorrect buf %s\n", __func__, buf);  in test_nondebug_fs_probe()
215 			       __func__, buf);  in test_nondebug_fs_probe()
230 	char buf[256], event_alias[sizeof("test_1234567890")];  in test_debug_fs_uprobe()  local
239 	snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/%s_events",  in test_debug_fs_uprobe()
241 	kfd = open(buf, O_WRONLY | O_TRUNC, 0);  in test_debug_fs_uprobe()
247 	res = snprintf(buf, sizeof(buf), "%c:%ss/%s %s:0x%lx",  in test_debug_fs_uprobe()
250 	CHECK_PERROR_RET(res < 0 || res >= sizeof(buf));  in test_debug_fs_uprobe()
251 	CHECK_PERROR_RET(write(kfd, buf, strlen(buf)) < 0);  in test_debug_fs_uprobe()
256 	snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/events/%ss/%s/id",  in test_debug_fs_uprobe()
258 	efd = open(buf, O_RDONLY, 0);  in test_debug_fs_uprobe()
261 	bytes = read(efd, buf, sizeof(buf));  in test_debug_fs_uprobe()
262 	CHECK_PERROR_RET(bytes <= 0 || bytes >= sizeof(buf));  in test_debug_fs_uprobe()
264 	buf[bytes] = '\0';  in test_debug_fs_uprobe()
266 	attr.config = strtol(buf, NULL, 0);  in test_debug_fs_uprobe()
280 	len = sizeof(buf);  in test_debug_fs_uprobe()
281 	err = bpf_task_fd_query(getpid(), kfd, 0, buf, &len,  in test_debug_fs_uprobe()
295 	if (strcmp(binary_path, buf) != 0) {  in test_debug_fs_uprobe()
296 		printf("FAIL: %s, incorrect buf %s\n", __func__, buf);  in test_debug_fs_uprobe()
314 	char filename[256], buf[256];  in main()  local
359 					     buf, sizeof(buf)));  in main()
365 					     buf, sizeof(buf)));  in main()
370 					     buf, sizeof(buf)));  in main()
375 					     buf, sizeof(buf)));  in main()
385 					     buf, sizeof(buf)));  in main()
404 					     buf, sizeof(buf)));  in main()
409 					     buf, sizeof(buf)));  in main()