ftrace.h (874bfc6e5422d2421f7e4d5ea318d30e91679dfe) ftrace.h (5c176aff5b5a7027840c37da9d48a8f9cedb08b9)
1/*
2 * arch/arm64/include/asm/ftrace.h
3 *
4 * Copyright (C) 2013 Linaro Limited
5 * Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_FTRACE_H
12#define __ASM_FTRACE_H
13
14#include <asm/insn.h>
15
1/*
2 * arch/arm64/include/asm/ftrace.h
3 *
4 * Copyright (C) 2013 Linaro Limited
5 * Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_FTRACE_H
12#define __ASM_FTRACE_H
13
14#include <asm/insn.h>
15
16#define HAVE_FUNCTION_GRAPH_FP_TEST
16#define MCOUNT_ADDR ((unsigned long)_mcount)
17#define MCOUNT_INSN_SIZE AARCH64_INSN_SIZE
18
19#ifndef __ASSEMBLY__
20#include <linux/compat.h>
21
22extern void _mcount(unsigned long);
23extern void *return_address(unsigned int);

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51 * If the user really wants these, then they should use the
52 * raw syscall tracepoints with filtering.
53 */
54#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS
55static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
56{
57 return is_compat_task();
58}
17#define MCOUNT_ADDR ((unsigned long)_mcount)
18#define MCOUNT_INSN_SIZE AARCH64_INSN_SIZE
19
20#ifndef __ASSEMBLY__
21#include <linux/compat.h>
22
23extern void _mcount(unsigned long);
24extern void *return_address(unsigned int);

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52 * If the user really wants these, then they should use the
53 * raw syscall tracepoints with filtering.
54 */
55#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS
56static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
57{
58 return is_compat_task();
59}
59
60#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
61
62static inline bool arch_syscall_match_sym_name(const char *sym,
63 const char *name)
64{
65 /*
66 * Since all syscall functions have __arm64_ prefix, we must skip it.
67 * However, as we described above, we decided to ignore compat
68 * syscalls, so we don't care about __arm64_compat_ prefix here.
69 */
70 return !strcmp(sym + 8, name);
71}
72#endif /* ifndef __ASSEMBLY__ */
73
74#endif /* __ASM_FTRACE_H */
60#endif /* ifndef __ASSEMBLY__ */
61
62#endif /* __ASM_FTRACE_H */