sh: Define HAVE_FUNCTION_TRACE_MCOUNT_TEST

[safe/jmp/linux-2.6] / arch / sh / lib / mcount.S

diff --git a/arch/sh/lib/mcount.S b/arch/sh/lib/mcount.S
index 110fbfe..cb87ef5 100644 (file)
--- a/arch/sh/lib/mcount.S
+++ b/arch/sh/lib/mcount.S
@@ -2,7 +2,7 @@
  * arch/sh/lib/mcount.S
  *
  *  Copyright (C) 2008  Paul Mundt
- *  Copyright (C) 2008  Matt Fleming
+ *  Copyright (C) 2008, 2009  Matt Fleming
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
@@ -35,6 +35,12 @@
        .type   mcount,@function
 _mcount:
 mcount:
+#ifndef CONFIG_DYNAMIC_FTRACE
+       mov.l   .Lfunction_trace_stop, r0
+       mov.l   @r0, r0
+       tst     r0, r0
+       bf      ftrace_stub
+#endif
        MCOUNT_ENTER()
 
 #ifdef CONFIG_DYNAMIC_FTRACE
@@ -62,6 +68,11 @@ skip_trace:
 #ifdef CONFIG_DYNAMIC_FTRACE
        .globl ftrace_caller
 ftrace_caller:
+       mov.l   .Lfunction_trace_stop, r0
+       mov.l   @r0, r0
+       tst     r0, r0
+       bf      ftrace_stub
+       
        MCOUNT_ENTER()
 
        .globl ftrace_call
@@ -88,3 +99,7 @@ ftrace_call:
 ftrace_stub:
        rts
         nop
+
+       .align 2
+.Lfunction_trace_stop:
+       .long   function_trace_stop