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-rw-r--r--arch/parisc/kernel/entry.S27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 4e9dd15e076c..ae3e70cd1e14 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2185,6 +2185,33 @@ syscall_do_resched:
ENDPROC(syscall_exit)
+#ifdef CONFIG_FUNCTION_TRACER
+ .import ftrace_function_trampoline,code
+ENTRY(_mcount)
+ copy %r3, %arg2
+ b ftrace_function_trampoline
+ nop
+ENDPROC(_mcount)
+
+ENTRY(return_to_handler)
+ load32 return_trampoline, %rp
+ copy %ret0, %arg0
+ copy %ret1, %arg1
+ b ftrace_return_to_handler
+ nop
+return_trampoline:
+ copy %ret0, %rp
+ copy %r23, %ret0
+ copy %r24, %ret1
+
+.globl ftrace_stub
+ftrace_stub:
+ bv %r0(%rp)
+ nop
+ENDPROC(return_to_handler)
+#endif /* CONFIG_FUNCTION_TRACER */
+
+
get_register:
/*
* get_register is used by the non access tlb miss handlers to