From 1d7bf993e0731b4ac790667c196b2a2d787f95c3 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 6 Sep 2013 20:24:48 +0200
Subject: MIPS: ftrace: Add support for syscall tracepoints.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/ptrace.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'arch/mips/kernel')

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index b996efcccc11..b52e1d2b33e0 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -29,6 +29,7 @@
 #include <linux/tracehook.h>
 #include <linux/audit.h>
 #include <linux/seccomp.h>
+#include <linux/ftrace.h>
 
 #include <asm/byteorder.h>
 #include <asm/cpu.h>
@@ -43,6 +44,9 @@
 #include <asm/bootinfo.h>
 #include <asm/reg.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/syscalls.h>
+
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -664,6 +668,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	    tracehook_report_syscall_entry(regs))
 		ret = -1;
 
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_enter(regs, regs->regs[2]);
+
 	audit_syscall_entry(__syscall_get_arch(),
 			    regs->regs[2],
 			    regs->regs[4], regs->regs[5],
@@ -685,6 +692,9 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 
 	audit_syscall_exit(regs);
 
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_exit(regs, regs->regs[2]);
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
 
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