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linux/time32.h: Extract common header for vDSO

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The vDSO library should only include the necessary headers required for
a userspace library (UAPI and a minimal set of kernel headers). To make
this possible it is necessary to isolate from the kernel headers the
common parts that are strictly necessary to build the library.

Split time32.h into linux and common headers to make the latter suitable
for inclusion in the vDSO library.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200320145351.32292-12-vincenzo.frascino@arm.com
This commit is contained in:
Vincenzo Frascino 2020-03-20 14:53:36 +00:00 committed by Thomas Gleixner
parent 639fff1cce
commit 9a41623169
2 changed files with 19 additions and 12 deletions
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14
include/linux/time32.h
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@ -12,20 +12,10 @@
#include <linux/time64.h>
#include <linux/timex.h>
#include <vdso/time32.h>
#define TIME_T_MAX (__kernel_old_time_t)((1UL << ((sizeof(__kernel_old_time_t) << 3) - 1)) - 1)
typedef s32 old_time32_t;
struct old_timespec32 {
old_time32_t tv_sec;
s32 tv_nsec;
};
struct old_timeval32 {
old_time32_t tv_sec;
s32 tv_usec;
};
struct old_itimerspec32 {
struct old_timespec32 it_interval;
struct old_timespec32 it_value;

17
include/vdso/time32.h Normal file
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@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __VDSO_TIME32_H
#define __VDSO_TIME32_H
typedef s32 old_time32_t;
struct old_timespec32 {
old_time32_t tv_sec;
s32 tv_nsec;
};
struct old_timeval32 {
old_time32_t tv_sec;
s32 tv_usec;
};
#endif /* __VDSO_TIME32_H */