summaryrefslogblamecommitdiff
path: root/arch/loongarch/include/asm/ftrace.h
blob: 09ff0f84663d80948d8dc845abe7942981b1d7a1 (plain) (tree) 
dbe3ba3018ec ^













4733f09d8807 ^



dbe3ba3018ec ^



4733f09d8807 ^


















dbe3ba3018ec ^





1
2
3
4
5
6
7
8
9
10
11
12
13

14
15
16

17
18
19

20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

38
39
40
41
42













                                                                


                             


                                                                                                         

















                                                                           




                                    
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2022 Loongson Technology Corporation Limited
 */

#ifndef _ASM_LOONGARCH_FTRACE_H
#define _ASM_LOONGARCH_FTRACE_H

#ifdef CONFIG_FUNCTION_TRACER

#define MCOUNT_INSN_SIZE 4		/* sizeof mcount call */

#ifndef __ASSEMBLY__

#ifndef CONFIG_DYNAMIC_FTRACE

#define mcount _mcount
extern void _mcount(void);
extern void prepare_ftrace_return(unsigned long self_addr, unsigned long callsite_sp, unsigned long old);

#else

struct dyn_ftrace;
struct dyn_arch_ftrace { };

#define ftrace_init_nop ftrace_init_nop
int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec);

static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
	return addr;
}

void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent);

#endif /* CONFIG_DYNAMIC_FTRACE */

#endif /* __ASSEMBLY__ */

#endif /* CONFIG_FUNCTION_TRACER */

#endif /* _ASM_LOONGARCH_FTRACE_H */