diff options
Diffstat (limited to 'include/linux/ftrace.h')
| -rw-r--r-- | include/linux/ftrace.h | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 98625f10d982..21c80491ccde 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -749,6 +749,11 @@ typedef int (*trace_func_graph_ent_t)(struct ftrace_graph_ent *); /* entry */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER +struct fgraph_ops { + trace_func_graph_ent_t entryfunc; + trace_func_graph_ret_t retfunc; +}; + /* * Stack of return addresses for functions * of a thread. @@ -792,8 +797,9 @@ unsigned long ftrace_graph_ret_addr(struct task_struct *task, int *idx, #define FTRACE_RETFUNC_DEPTH 50 #define FTRACE_RETSTACK_ALLOC_SIZE 32 -extern int register_ftrace_graph(trace_func_graph_ret_t retfunc, - trace_func_graph_ent_t entryfunc); + +extern int register_ftrace_graph(struct fgraph_ops *ops); +extern void unregister_ftrace_graph(struct fgraph_ops *ops); extern bool ftrace_graph_is_dead(void); extern void ftrace_graph_stop(void); @@ -802,8 +808,6 @@ extern void ftrace_graph_stop(void); extern trace_func_graph_ret_t ftrace_graph_return; extern trace_func_graph_ent_t ftrace_graph_entry; -extern void unregister_ftrace_graph(void); - extern void ftrace_graph_init_task(struct task_struct *t); extern void ftrace_graph_exit_task(struct task_struct *t); extern void ftrace_graph_init_idle_task(struct task_struct *t, int cpu); @@ -825,12 +829,9 @@ static inline void ftrace_graph_init_task(struct task_struct *t) { } static inline void ftrace_graph_exit_task(struct task_struct *t) { } static inline void ftrace_graph_init_idle_task(struct task_struct *t, int cpu) { } -static inline int register_ftrace_graph(trace_func_graph_ret_t retfunc, - trace_func_graph_ent_t entryfunc) -{ - return -1; -} -static inline void unregister_ftrace_graph(void) { } +/* Define as macros as fgraph_ops may not be defined */ +#define register_ftrace_graph(ops) ({ -1; }) +#define unregister_ftrace_graph(ops) do { } while (0) static inline unsigned long ftrace_graph_ret_addr(struct task_struct *task, int *idx, unsigned long ret, |