kernel/trace/kprobe_event_gen_test.c

1 // SPDX-License-Identifier: GPL-2.0
3  * Test module for in-kernel kprobe event creation and generation.
8 #include <linux/module.h>
12  * This module is a simple test of basic functionality for in-kernel
20  * To test, select CONFIG_KPROBE_EVENT_GEN_TEST and build the module.
29  * To remove the events, remove the module:
94 		return -ENOMEM;  in test_gen_kprobe_cmd()
124 	 * the instance and event from disappearing from underneath  in test_gen_kprobe_cmd()
126 	 * we're using the top-level instance which never goes away).  in test_gen_kprobe_cmd()
136 	ret = trace_array_set_clr_event(gen_kprobe_test->tr,  in test_gen_kprobe_cmd()
165 		return -ENOMEM;  in test_gen_kretprobe_cmd()
188 	 * prevent the instance and event from disappearing from  in test_gen_kretprobe_cmd()
190 	 * this case we're using the top-level instance which never  in test_gen_kretprobe_cmd()
201 	ret = trace_array_set_clr_event(gen_kretprobe_test->tr,  in test_gen_kretprobe_cmd()
229 			WARN_ON(trace_array_set_clr_event(gen_kretprobe_test->tr,  in kprobe_event_gen_test_init()
244 		WARN_ON(trace_array_set_clr_event(gen_kprobe_test->tr,  in kprobe_event_gen_test_exit()
248 		/* Now give the file and instance back */  in kprobe_event_gen_test_exit()
258 		WARN_ON(trace_array_set_clr_event(gen_kretprobe_test->tr,  in kprobe_event_gen_test_exit()
262 		/* Now give the file and instance back */  in kprobe_event_gen_test_exit()