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authorMatt Fleming <mjf@gentoo.org>2008-11-12 20:11:47 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 18:42:52 +0900
commitfad57feba77d2e5b183e068cb6b90693e4567b40 (patch)
tree478788d5a05a30f638540d345e9d09c5733687da /arch/sh/include
parentef6aff6884408db95ceb0f678f583536e0bd48f8 (diff)
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>
Diffstat (limited to 'arch/sh/include')
-rw-r--r--arch/sh/include/asm/ftrace.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/sh/include/asm/ftrace.h b/arch/sh/include/asm/ftrace.h
index 3aed362c946..4cb5dbfc404 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 */