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Unverified Commit 71e736a7 authored Feb 13, 2018 by Alan Kao Committed by Palmer Dabbelt Apr 02, 2018

riscv/ftrace: Add ARCH_SUPPORTS_FTRACE_OPS support



Cc: Greentime Hu <greentime@andestech.com>
Signed-off-by: Alan Kao <alankao@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

parent bc1a4c3a

arch/riscv/include/asm/ftrace.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@
		#define HAVE_FUNCTION_GRAPH_FP_TEST
		#endif

		#define ARCH_SUPPORTS_FTRACE_OPS 1
		#ifndef __ASSEMBLY__
		void _mcount(void);
		static inline unsigned long ftrace_call_adjust(unsigned long addr)

arch/riscv/kernel/mcount-dyn.S

+3 −0

Original line number	Diff line number	Diff line
		@@ -74,9 +74,12 @@ ENTRY(ftrace_caller)
		/*
		* a0: the address in the caller when calling ftrace_caller
		* a1: the caller's return address
		* a2: the address of global variable function_trace_op
		*/
		ld a1, -8(s0)
		addi a0, ra, -MCOUNT_INSN_SIZE
		la t5, function_trace_op
		ld a2, 0(t5)

		#ifdef CONFIG_FUNCTION_GRAPH_TRACER
		/*