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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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 __ASSEMBLER__
11extern 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
24struct dyn_arch_ftrace {
25 /* No extra data needed on sh */
26};
27
28#endif /* CONFIG_DYNAMIC_FTRACE */
29
30static inline unsigned long ftrace_call_adjust(unsigned long addr)
31{
32 /* 'addr' is the memory table address. */
33 return addr;
34}
35
36void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr);
37
38#endif /* __ASSEMBLER__ */
39#endif /* CONFIG_FUNCTION_TRACER */
40
41#ifndef __ASSEMBLER__
42
43/* arch/sh/kernel/return_address.c */
44extern void *return_address(unsigned int);
45
46#define ftrace_return_address(n) return_address(n)
47
48#ifdef CONFIG_DYNAMIC_FTRACE
49extern void arch_ftrace_nmi_enter(void);
50extern void arch_ftrace_nmi_exit(void);
51#else
52static inline void arch_ftrace_nmi_enter(void) { }
53static inline void arch_ftrace_nmi_exit(void) { }
54#endif
55
56#endif /* __ASSEMBLER__ */
57
58#endif /* __ASM_SH_FTRACE_H */