sh: dynamic ftrace support.
First cut at dynamic ftrace support.
Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/ftrace.h b/arch/sh/include/asm/ftrace.h
index 3aed362..4cb5dbf 100644
--- a/arch/sh/include/asm/ftrace.h
+++ b/arch/sh/include/asm/ftrace.h
@@ -1,8 +1,29 @@
#ifndef __ASM_SH_FTRACE_H
#define __ASM_SH_FTRACE_H
+#ifdef CONFIG_FUNCTION_TRACER
+
+#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
+
#ifndef __ASSEMBLY__
extern void mcount(void);
+
+#define MCOUNT_ADDR ((long)(mcount))
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+#define CALLER_ADDR ((long)(ftrace_caller))
+#define STUB_ADDR ((long)(ftrace_stub))
+
+#define MCOUNT_INSN_OFFSET ((STUB_ADDR - CALLER_ADDR) >> 1)
#endif
+static inline unsigned long ftrace_call_adjust(unsigned long addr)
+{
+ /* 'addr' is the memory table address. */
+ return addr;
+}
+#endif
+
+#endif /* CONFIG_FUNCTION_TRACER */
+
#endif /* __ASM_SH_FTRACE_H */