arch/arm64/kernel/probes/decode-insn.h

Source file repositories/reference/linux-study-clean/arch/arm64/kernel/probes/decode-insn.h

File Facts

System
Linux kernel
Corpus path
arch/arm64/kernel/probes/decode-insn.h
Extension
.h
Size
814 bytes
Lines
34
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ARM_KERNEL_KPROBES_ARM64_H
#define _ARM_KERNEL_KPROBES_ARM64_H

#include <asm/kprobes.h>

/*
 * ARM strongly recommends a limit of 128 bytes between LoadExcl and
 * StoreExcl instructions in a single thread of execution. So keep the
 * max atomic context size as 32.
 */
#define MAX_ATOMIC_CONTEXT_SIZE	(128 / sizeof(kprobe_opcode_t))

enum probe_insn {
	INSN_REJECTED,
	INSN_GOOD_NO_SLOT,
	INSN_GOOD,
};

#ifdef CONFIG_KPROBES
enum probe_insn __kprobes
arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi);
#endif
enum probe_insn __kprobes
arm_probe_decode_insn(u32 insn, struct arch_probe_insn *asi);

#endif /* _ARM_KERNEL_KPROBES_ARM64_H */

Annotation

Implementation Notes