arch/arm64/include/uapi/asm/ucontext.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/include/uapi/asm/ucontext.h

Extension

.h

Size

1081 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.

• 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

• linux/types.h

Detected Declarations

• struct ucontext

Annotated Snippet

struct ucontext {
	unsigned long	  uc_flags;
	struct ucontext	 *uc_link;
	stack_t		  uc_stack;
	sigset_t	  uc_sigmask;
	/* glibc uses a 1024-bit sigset_t */
	__u8		  __unused[1024 / 8 - sizeof(sigset_t)];
	/* last for future expansion */
	struct sigcontext uc_mcontext;
};

#endif /* _UAPI__ASM_UCONTEXT_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct ucontext`.
• Atlas domain: Architecture Layer / arch/arm64.
• 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.