arch/s390/kernel/vdso/vdso.h

File Facts

System

Linux kernel

Corpus path

arch/s390/kernel/vdso/vdso.h

Extension

.h

Size

612 bytes

Lines

14

Domain

Architecture Layer

Bucket

arch/s390

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

• vdso/datapage.h

Detected Declarations

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

Annotated Snippet

#ifndef __ARCH_S390_KERNEL_VDSO_VDSO_H
#define __ARCH_S390_KERNEL_VDSO_VDSO_H

#include <vdso/datapage.h>

int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, void *unused);
int __s390_vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
int __s390_vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts);
int __s390_vdso_clock_getres(clockid_t clock, struct __kernel_timespec *ts);
ssize_t __kernel_getrandom(void *buffer, size_t len, unsigned int flags, void *opaque_state, size_t opaque_len);

#endif /* __ARCH_S390_KERNEL_VDSO_VDSO_H */

Annotation

• Immediate include surface: `vdso/datapage.h`.
• Atlas domain: Architecture Layer / arch/s390.
• 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.