tracing: Add fields format definition for syscall events

[pandora-kernel.git] / include / trace / syscall.h

diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 8cfe515..0cb0362 100644 (file)
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -1,8 +1,30 @@
 #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>
 
+
+extern void syscall_regfunc(void);
+extern void syscall_unregfunc(void);
+
+DECLARE_TRACE_WITH_CALLBACK(syscall_enter,
+       TP_PROTO(struct pt_regs *regs, long id),
+       TP_ARGS(regs, id),
+       syscall_regfunc,
+       syscall_unregfunc
+);
+
+DECLARE_TRACE_WITH_CALLBACK(syscall_exit,
+       TP_PROTO(struct pt_regs *regs, long ret),
+       TP_ARGS(regs, ret),
+       syscall_regfunc,
+       syscall_unregfunc
+);
+
 /*
  * A syscall entry in the ftrace syscalls array.
  *
@@ -10,26 +32,40 @@
  * @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
  */
 struct syscall_metadata {
        const char      *name;
        int             nb_args;
        const char      **types;
        const char      **args;
+       int             enter_id;
+       int             exit_id;
 };
 
 #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 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 reg_event_syscall_enter(void *ptr);
+extern void unreg_event_syscall_enter(void *ptr);
+extern int reg_event_syscall_exit(void *ptr);
+extern void unreg_event_syscall_exit(void *ptr);
+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 */