1 files changed, 17 insertions, 1 deletions

diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index d10daf0922b5..7336b6c265d7 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -97,7 +97,7 @@ extern char *__bad_type_size(void);
                 __bad_type_size() :                                     \
                 #type, #name, offsetof(typeof(trace), name), sizeof(trace.name)
 
-int ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s)
+int syscall_enter_format(struct ftrace_event_call *call, struct trace_seq *s)
 {
         int i;
         int nr;
@@ -149,6 +149,22 @@ int ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s)
         return ret;
 }
 
+int syscall_exit_format(struct ftrace_event_call *call, struct trace_seq *s)
+{
+        int ret;
+        struct syscall_trace_exit trace;
+
+        ret = trace_seq_printf(s,
+                               "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
+                               "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n",
+                               SYSCALL_FIELD(int, nr),
+                               SYSCALL_FIELD(unsigned long, ret));
+        if (!ret)
+                return 0;
+
+        return trace_seq_printf(s, "\nprint fmt: \"0x%%lx\", REC->ret\n");
+}
+
 void ftrace_syscall_enter(struct pt_regs *regs, long id)
 {
         struct syscall_trace_enter *entry;