arch/powerpc/kernel/vdso/vgettimeofday.c

Source file repositories/reference/linux-study-clean/arch/powerpc/kernel/vdso/vgettimeofday.c

File Facts

System
Linux kernel
Corpus path
arch/powerpc/kernel/vdso/vgettimeofday.c
Extension
.c
Size
1572 bytes
Lines
56
Domain
Architecture Layer
Bucket
arch/powerpc
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
/*
 * Powerpc userspace implementations of gettimeofday() and similar.
 */
#include <linux/time.h>
#include <linux/types.h>

#ifdef __powerpc64__
int __c_kernel_clock_gettime(clockid_t clock, struct __kernel_timespec *ts,
			     const struct vdso_time_data *vd)
{
	return __cvdso_clock_gettime_data(vd, clock, ts);
}

int __c_kernel_clock_getres(clockid_t clock_id, struct __kernel_timespec *res,
			    const struct vdso_time_data *vd)
{
	return __cvdso_clock_getres_data(vd, clock_id, res);
}
#else
int __c_kernel_clock_gettime(clockid_t clock, struct old_timespec32 *ts,
			     const struct vdso_time_data *vd)
{
	return __cvdso_clock_gettime32_data(vd, clock, ts);
}

int __c_kernel_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts,
			       const struct vdso_time_data *vd)
{
	return __cvdso_clock_gettime_data(vd, clock, ts);
}

int __c_kernel_clock_getres(clockid_t clock_id, struct old_timespec32 *res,
			    const struct vdso_time_data *vd)
{
	return __cvdso_clock_getres_time32_data(vd, clock_id, res);
}

int __c_kernel_clock_getres_time64(clockid_t clock_id, struct __kernel_timespec *res,
				   const struct vdso_time_data *vd)
{
	return __cvdso_clock_getres_data(vd, clock_id, res);
}
#endif

int __c_kernel_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz,
			    const struct vdso_time_data *vd)
{
	return __cvdso_gettimeofday_data(vd, tv, tz);
}

__kernel_old_time_t __c_kernel_time(__kernel_old_time_t *time, const struct vdso_time_data *vd)
{
	return __cvdso_time_data(vd, time);
}

Annotation

Implementation Notes