arch/xtensa/include/uapi/asm/sigcontext.h

File Facts

System

Linux kernel

Corpus path

arch/xtensa/include/uapi/asm/sigcontext.h

Extension

.h

Size

681 bytes

Lines

30

Domain

Architecture Layer

Bucket

arch/xtensa

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

• No C-style include directives detected by the generator.

Detected Declarations

• struct sigcontext

Annotated Snippet

struct sigcontext {
	unsigned long sc_pc;
	unsigned long sc_ps;
	unsigned long sc_lbeg;
	unsigned long sc_lend;
	unsigned long sc_lcount;
	unsigned long sc_sar;
	unsigned long sc_acclo;
	unsigned long sc_acchi;
	unsigned long sc_a[16];
	void *sc_xtregs;
};

#endif /* _XTENSA_SIGCONTEXT_H */

Annotation

• Detected declarations: `struct sigcontext`.
• Atlas domain: Architecture Layer / arch/xtensa.
• 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.