1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef PERF_UTIL_PERF_HOOKS_H
3 #define PERF_UTIL_PERF_HOOKS_H
4 
5 #ifdef __cplusplus
6 extern "C" {
7 #endif
8 
9 typedef void (*perf_hook_func_t)(void *ctx);
10 struct perf_hook_desc {
11 	const char * const hook_name;
12 	perf_hook_func_t * const p_hook_func;
13 	void *hook_ctx;
14 };
15 
16 extern void perf_hooks__invoke(const struct perf_hook_desc *);
17 extern void perf_hooks__recover(void);
18 
19 #define PERF_HOOK(name)					\
20 extern struct perf_hook_desc __perf_hook_desc_##name;	\
21 static inline void perf_hooks__invoke_##name(void)	\
22 { 							\
23 	perf_hooks__invoke(&__perf_hook_desc_##name);	\
24 }
25 
26 #include "perf-hooks-list.h"
27 #undef PERF_HOOK
28 
29 extern int
30 perf_hooks__set_hook(const char *hook_name,
31 		     perf_hook_func_t hook_func,
32 		     void *hook_ctx);
33 
34 extern perf_hook_func_t
35 perf_hooks__get_hook(const char *hook_name);
36 
37 #ifdef __cplusplus
38 }
39 #endif
40 #endif
41