1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_SH_FTRACE_H
3 #define __ASM_SH_FTRACE_H
4 
5 #ifdef CONFIG_FUNCTION_TRACER
6 
7 #define MCOUNT_INSN_SIZE	4 /* sizeof mcount call */
8 #define FTRACE_SYSCALL_MAX	NR_syscalls
9 
10 #ifndef __ASSEMBLY__
11 extern void mcount(void);
12 
13 #define MCOUNT_ADDR		((unsigned long)(mcount))
14 
15 #ifdef CONFIG_DYNAMIC_FTRACE
16 #define CALL_ADDR		((long)(ftrace_call))
17 #define STUB_ADDR		((long)(ftrace_stub))
18 #define GRAPH_ADDR		((long)(ftrace_graph_call))
19 #define CALLER_ADDR		((long)(ftrace_caller))
20 
21 #define MCOUNT_INSN_OFFSET	((STUB_ADDR - CALL_ADDR) - 4)
22 #define GRAPH_INSN_OFFSET	((CALLER_ADDR - GRAPH_ADDR) - 4)
23 
24 struct dyn_arch_ftrace {
25 	/* No extra data needed on sh */
26 };
27 
28 #endif /* CONFIG_DYNAMIC_FTRACE */
29 
ftrace_call_adjust(unsigned long addr)30 static inline unsigned long ftrace_call_adjust(unsigned long addr)
31 {
32 	/* 'addr' is the memory table address. */
33 	return addr;
34 }
35 
36 #endif /* __ASSEMBLY__ */
37 #endif /* CONFIG_FUNCTION_TRACER */
38 
39 #ifndef __ASSEMBLY__
40 
41 /* arch/sh/kernel/return_address.c */
42 extern void *return_address(unsigned int);
43 
44 #define ftrace_return_address(n) return_address(n)
45 
46 #endif /* __ASSEMBLY__ */
47 
48 #endif /* __ASM_SH_FTRACE_H */
49