arch/parisc/kernel/vdso32/vdso32_generic.c

Source file repositories/reference/linux-study-clean/arch/parisc/kernel/vdso32/vdso32_generic.c

File Facts

System
Linux kernel
Corpus path
arch/parisc/kernel/vdso32/vdso32_generic.c
Extension
.c
Size
887 bytes
Lines
33
Domain
Architecture Layer
Bucket
arch/parisc
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.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0

#include "asm/unistd.h"
#include <linux/types.h>
#include <uapi/asm/unistd_32.h>

struct timezone;
struct old_timespec32;
struct __kernel_timespec;
struct __kernel_old_timeval;

/* forward declarations */
int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts);
int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts);


int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
			struct timezone *tz)
{
	return syscall2(__NR_gettimeofday, (long)tv, (long)tz);
}

int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
{
	return syscall2(__NR_clock_gettime, (long)clock, (long)ts);
}

int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
{
	return syscall2(__NR_clock_gettime64, (long)clock, (long)ts);
}

Annotation

Implementation Notes