diff options
Diffstat (limited to 'include/trace/syscall.h')
| -rw-r--r-- | include/trace/syscall.h | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/include/trace/syscall.h b/include/trace/syscall.h index 8cfe515cbc4..9674145e2f6 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -1,35 +1,50 @@ #ifndef _TRACE_SYSCALL_H #define _TRACE_SYSCALL_H +#include <linux/tracepoint.h> +#include <linux/unistd.h> +#include <linux/ftrace_event.h> +#include <linux/thread_info.h> + #include <asm/ptrace.h> + /* * A syscall entry in the ftrace syscalls array. * * @name: name of the syscall + * @syscall_nr: number 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]) + * @enter_fields: list of fields for syscall_enter trace event + * @enter_event: associated syscall_enter trace event + * @exit_event: associated syscall_exit trace event */ struct syscall_metadata { const char *name; + int syscall_nr; int nb_args; const char **types; const char **args; + struct list_head enter_fields; + + struct ftrace_event_call *enter_event; + struct ftrace_event_call *exit_event; }; -#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); +#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) +static inline void syscall_tracepoint_update(struct task_struct *p) +{ + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); + else + clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); +} #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) { } +static inline void syscall_tracepoint_update(struct task_struct *p) +{ +} #endif #endif /* _TRACE_SYSCALL_H */ |