| #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 |
| * @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_id: associated ftrace enter event id |
| * @exit_id: associated ftrace exit event id |
| * @enter_event: associated syscall_enter trace event |
| * @exit_event: associated syscall_exit trace event |
| */ |
| struct syscall_metadata { |
| const char *name; |
| int nb_args; |
| const char **types; |
| const char **args; |
| int enter_id; |
| int exit_id; |
| |
| struct ftrace_event_call *enter_event; |
| struct ftrace_event_call *exit_event; |
| }; |
| |
| #ifdef CONFIG_FTRACE_SYSCALLS |
| extern unsigned long arch_syscall_addr(int nr); |
| extern int syscall_name_to_nr(char *name); |
| void set_syscall_enter_id(int num, int id); |
| void set_syscall_exit_id(int num, int id); |
| extern struct trace_event event_syscall_enter; |
| extern struct trace_event event_syscall_exit; |
| |
| extern int syscall_enter_format(struct ftrace_event_call *call, |
| struct trace_seq *s); |
| extern int syscall_exit_format(struct ftrace_event_call *call, |
| struct trace_seq *s); |
| extern int syscall_enter_define_fields(struct ftrace_event_call *call); |
| extern int syscall_exit_define_fields(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); |
| enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags); |
| #endif |
| #ifdef CONFIG_EVENT_PROFILE |
| int reg_prof_syscall_enter(char *name); |
| void unreg_prof_syscall_enter(char *name); |
| int reg_prof_syscall_exit(char *name); |
| void unreg_prof_syscall_exit(char *name); |
| |
| #endif |
| |
| #endif /* _TRACE_SYSCALL_H */ |