arch/arm/include/asm/kprobes.h
Source file repositories/reference/linux-study-clean/arch/arm/include/asm/kprobes.h
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/include/asm/kprobes.h- Extension
.h- Size
- 2150 bytes
- Lines
- 79
- Domain
- Architecture Layer
- Bucket
- arch/arm
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
asm-generic/kprobes.hlinux/types.hlinux/ptrace.hlinux/notifier.hasm/probes.h
Detected Declarations
struct kprobestruct prev_kprobestruct kprobe_ctlblkstruct arch_optimized_insn
Annotated Snippet
struct prev_kprobe {
struct kprobe *kp;
unsigned int status;
};
/* per-cpu kprobe control block */
struct kprobe_ctlblk {
unsigned int kprobe_status;
struct prev_kprobe prev_kprobe;
};
void arch_remove_kprobe(struct kprobe *);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
/* optinsn template addresses */
extern __visible kprobe_opcode_t optprobe_template_entry[];
extern __visible kprobe_opcode_t optprobe_template_val[];
extern __visible kprobe_opcode_t optprobe_template_call[];
extern __visible kprobe_opcode_t optprobe_template_end[];
extern __visible kprobe_opcode_t optprobe_template_sub_sp[];
extern __visible kprobe_opcode_t optprobe_template_add_sp[];
extern __visible kprobe_opcode_t optprobe_template_restore_begin[];
extern __visible kprobe_opcode_t optprobe_template_restore_orig_insn[];
extern __visible kprobe_opcode_t optprobe_template_restore_end[];
#define MAX_OPTIMIZED_LENGTH 4
#define MAX_OPTINSN_SIZE \
((unsigned long)optprobe_template_end - \
(unsigned long)optprobe_template_entry)
#define RELATIVEJUMP_SIZE 4
struct arch_optimized_insn {
/*
* copy of the original instructions.
* Different from x86, ARM kprobe_opcode_t is u32.
*/
#define MAX_COPIED_INSN DIV_ROUND_UP(RELATIVEJUMP_SIZE, sizeof(kprobe_opcode_t))
kprobe_opcode_t copied_insn[MAX_COPIED_INSN];
/* detour code buffer */
kprobe_opcode_t *insn;
/*
* We always copy one instruction on ARM,
* so size will always be 4, and unlike x86, there is no
* need for a size field.
*/
};
#endif /* CONFIG_KPROBES */
#endif /* _ARM_KPROBES_H */
Annotation
- Immediate include surface: `asm-generic/kprobes.h`, `linux/types.h`, `linux/ptrace.h`, `linux/notifier.h`, `asm/probes.h`.
- Detected declarations: `struct kprobe`, `struct prev_kprobe`, `struct kprobe_ctlblk`, `struct arch_optimized_insn`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.