diff options
Diffstat (limited to 'include/trace/syscall.h')
| -rw-r--r-- | include/trace/syscall.h | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/include/trace/syscall.h b/include/trace/syscall.h index 8cfe515cbc47..31966a4fb8cc 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -1,35 +1,57 @@ #ifndef _TRACE_SYSCALL_H #define _TRACE_SYSCALL_H +#include <linux/tracepoint.h> +#include <linux/unistd.h> +#include <linux/ftrace_event.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_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); -#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) { } +extern unsigned long arch_syscall_addr(int nr); +extern int init_syscall_trace(struct ftrace_event_call *call); + +extern int reg_event_syscall_enter(struct ftrace_event_call *call); +extern void unreg_event_syscall_enter(struct ftrace_event_call *call); +extern int reg_event_syscall_exit(struct ftrace_event_call *call); +extern void unreg_event_syscall_exit(struct ftrace_event_call *call); +extern int +ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s); +enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags, + struct trace_event *event); +enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags, + struct trace_event *event); +#endif + +#ifdef CONFIG_PERF_EVENTS +int perf_sysenter_enable(struct ftrace_event_call *call); +void perf_sysenter_disable(struct ftrace_event_call *call); +int perf_sysexit_enable(struct ftrace_event_call *call); +void perf_sysexit_disable(struct ftrace_event_call *call); #endif #endif /* _TRACE_SYSCALL_H */ |