tracing: Add individual syscalls tracepoint id support

[pandora-kernel.git] / include / linux / syscalls.h

diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 5e5b4d3..ce4b01c 100644 (file)
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -116,13 +116,20 @@ struct perf_counter_attr;
 
 #define SYSCALL_TRACE_ENTER_EVENT(sname)                               \
        static struct ftrace_event_call event_enter_##sname;            \
+       struct trace_event enter_syscall_print_##sname = {              \
+               .trace                  = print_syscall_enter,          \
+       };                                                              \
        static int init_enter_##sname(void)                             \
        {                                                               \
-               int num;                                                \
+               int num, id;                                            \
                num = syscall_name_to_nr("sys"#sname);                  \
                if (num < 0)                                            \
                        return -ENOSYS;                                 \
-               register_ftrace_event(&event_syscall_enter);            \
+               id = register_ftrace_event(&enter_syscall_print_##sname);\
+               if (!id)                                                \
+                       return -ENODEV;                                 \
+               event_enter_##sname.id = id;                            \
+               set_syscall_enter_id(num, id);                          \
                INIT_LIST_HEAD(&event_enter_##sname.fields);            \
                init_preds(&event_enter_##sname);                       \
                return 0;                                               \
@@ -142,13 +149,20 @@ struct perf_counter_attr;
 
 #define SYSCALL_TRACE_EXIT_EVENT(sname)                                        \
        static struct ftrace_event_call event_exit_##sname;             \
+       struct trace_event exit_syscall_print_##sname = {               \
+               .trace                  = print_syscall_exit,           \
+       };                                                              \
        static int init_exit_##sname(void)                              \
        {                                                               \
-               int num;                                                \
+               int num, id;                                            \
                num = syscall_name_to_nr("sys"#sname);                  \
                if (num < 0)                                            \
                        return -ENOSYS;                                 \
-               register_ftrace_event(&event_syscall_exit);             \
+               id = register_ftrace_event(&exit_syscall_print_##sname);\
+               if (!id)                                                \
+                       return -ENODEV;                                 \
+               event_exit_##sname.id = id;                             \
+               set_syscall_exit_id(num, id);                           \
                INIT_LIST_HEAD(&event_exit_##sname.fields);             \
                init_preds(&event_exit_##sname);                        \
                return 0;                                               \