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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/sh/include/asm/ftrace.h
Initial import
Diffstat (limited to 'arch/sh/include/asm/ftrace.h')
-rw-r--r--arch/sh/include/asm/ftrace.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/sh/include/asm/ftrace.h b/arch/sh/include/asm/ftrace.h
new file mode 100644
index 000000000..e79fb6eba
--- /dev/null
+++ b/arch/sh/include/asm/ftrace.h
@@ -0,0 +1,47 @@
+#ifndef __ASM_SH_FTRACE_H
+#define __ASM_SH_FTRACE_H
+
+#ifdef CONFIG_FUNCTION_TRACER
+
+#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
+#define FTRACE_SYSCALL_MAX NR_syscalls
+
+#ifndef __ASSEMBLY__
+extern void mcount(void);
+
+#define MCOUNT_ADDR ((long)(mcount))
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+#define CALL_ADDR ((long)(ftrace_call))
+#define STUB_ADDR ((long)(ftrace_stub))
+#define GRAPH_ADDR ((long)(ftrace_graph_call))
+#define CALLER_ADDR ((long)(ftrace_caller))
+
+#define MCOUNT_INSN_OFFSET ((STUB_ADDR - CALL_ADDR) - 4)
+#define GRAPH_INSN_OFFSET ((CALLER_ADDR - GRAPH_ADDR) - 4)
+
+struct dyn_arch_ftrace {
+ /* No extra data needed on sh */
+};
+
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
+static inline unsigned long ftrace_call_adjust(unsigned long addr)
+{
+ /* 'addr' is the memory table address. */
+ return addr;
+}
+
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_FUNCTION_TRACER */
+
+#ifndef __ASSEMBLY__
+
+/* arch/sh/kernel/return_address.c */
+extern void *return_address(unsigned int);
+
+#define ftrace_return_address(n) return_address(n)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_SH_FTRACE_H */