arch/m68k/include/asm/ptrace.h

File Facts

System

Linux kernel

Corpus path

arch/m68k/include/asm/ptrace.h

Extension

.h

Size

645 bytes

Lines

29

Domain

Architecture Layer

Bucket

arch/m68k

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

• uapi/asm/ptrace.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _M68K_PTRACE_H
#define _M68K_PTRACE_H

#include <uapi/asm/ptrace.h>

#ifndef __ASSEMBLER__

#ifndef PS_S
#define PS_S  (0x2000)
#define PS_M  (0x1000)
#endif

#define user_mode(regs) (!((regs)->sr & PS_S))
#define instruction_pointer(regs) ((regs)->pc)
#define profile_pc(regs) instruction_pointer(regs)
#define current_pt_regs() \
	(struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1
#define current_user_stack_pointer() rdusp()

#define arch_has_single_step()	(1)

#ifdef CONFIG_MMU
#define arch_has_block_step()	(1)
#endif

#endif /* __ASSEMBLER__ */
#endif /* _M68K_PTRACE_H */

Annotation

• Immediate include surface: `uapi/asm/ptrace.h`.
• Atlas domain: Architecture Layer / arch/m68k.
• 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.