diff options
Diffstat (limited to 'include/linux/ftrace.h')
| -rw-r--r-- | include/linux/ftrace.h | 37 |
1 files changed, 6 insertions, 31 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 015a3d22cf74..8a0c2f221e6b 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -356,6 +356,9 @@ struct ftrace_graph_ret { #ifdef CONFIG_FUNCTION_GRAPH_TRACER +/* for init task */ +#define INIT_FTRACE_GRAPH .ret_stack = NULL, + /* * Stack of return addresses for functions * of a thread. @@ -430,10 +433,11 @@ static inline void unpause_graph_tracing(void) { atomic_dec(¤t->tracing_graph_pause); } -#else +#else /* !CONFIG_FUNCTION_GRAPH_TRACER */ #define __notrace_funcgraph #define __irq_entry +#define INIT_FTRACE_GRAPH static inline void ftrace_graph_init_task(struct task_struct *t) { } static inline void ftrace_graph_exit_task(struct task_struct *t) { } @@ -445,7 +449,7 @@ static inline int task_curr_ret_stack(struct task_struct *tsk) static inline void pause_graph_tracing(void) { } static inline void unpause_graph_tracing(void) { } -#endif +#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ #ifdef CONFIG_TRACING #include <linux/sched.h> @@ -507,33 +511,4 @@ static inline void trace_hw_branch_oops(void) {} #endif /* CONFIG_HW_BRANCH_TRACER */ -/* - * A syscall entry in the ftrace syscalls array. - * - * @name: name of the syscall - * @nb_args: number of parameters it takes - * @types: list of types as strings - * @args: list of args as strings (args[i] matches types[i]) - */ -struct syscall_metadata { - const char *name; - int nb_args; - const char **types; - const char **args; -}; - -#ifdef CONFIG_FTRACE_SYSCALLS -extern void arch_init_ftrace_syscalls(void); -extern struct syscall_metadata *syscall_nr_to_meta(int nr); -extern void start_ftrace_syscalls(void); -extern void stop_ftrace_syscalls(void); -extern void ftrace_syscall_enter(struct pt_regs *regs); -extern void ftrace_syscall_exit(struct pt_regs *regs); -#else -static inline void start_ftrace_syscalls(void) { } -static inline void stop_ftrace_syscalls(void) { } -static inline void ftrace_syscall_enter(struct pt_regs *regs) { } -static inline void ftrace_syscall_exit(struct pt_regs *regs) { } -#endif - #endif /* _LINUX_FTRACE_H */ |