From: Lukasz Majewski <lukma@denx.de>
To: Joseph Myers <joseph@codesourcery.com>,
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: Alistair Francis <alistair23@gmail.com>,
Alistair Francis <alistair.francis@wdc.com>,
GNU C Library <libc-alpha@sourceware.org>,
Florian Weimer <fweimer@redhat.com>,
Andreas Schwab <schwab@suse.de>, Lukasz Majewski <lukma@denx.de>
Subject: [PATCH 00/10] y2038: Convert clock_adjtime related syscalls to support 64 bit time
Date: Sun, 26 Apr 2020 15:31:00 +0200 [thread overview]
Message-ID: <20200426133110.5312-1-lukma@denx.de> (raw)
This patch series converts clock_adjtime to support 64 bit time (by using
clock_adjtime64) when __ASSUME_TIME64_SYSCALLS is defined.
This change required introduction of two new internal types - struct
__ntptimeval64 and struct __timex64 to accomodate 64 bit time on architectures
with __TIMESIZE != 64 and __WORDSIZE == 32.
In several places in the glibc the struct timeval has been replaced with struct
__timeval64.
As a result new, 64 bit supporting functions:
__adjtime64
__adjtimex64
__ntp_gettime64
__ntp_gettimex64
were introduced.
The introduced struct __timex64 is a copy of Linux kernel's struct
__kernel_timex (v5.6) introduced for properly handling data for clock_adjtime64
syscall.
As the struct's __kernel_timex size is the same as for archs with
__WORDSIZE == 64, proper padding and data types conversion (i.e. long to long
long) had to be added for architectures with __WORDSIZE == 32 &&
__TIMESIZE != 64.
Moreover, the clock_adjtime64 syscall handling in Linux kernel has been broken
up till v5.4.
Lukasz Majewski (10):
y2038: include: Move struct __timeval64 definition to a separate file
y2038: Introduce struct __timex64 - new internal glibc type
y2038: Provide conversion helpers for struct __timex64
y2038: linux: Provide __clock_adjtime64 implementation
y2038: linux: Provide ___adjtimex64 implementation
y2038: linux: Provide __adjtime64 implementation
y2038: Introduce struct __ntptimeval64 - new internal glibc type
y2038: Provide conversion helpers for struct __ntptimeval64
y2038: linux: Provide __ntp_gettime64 implementation
y2038: linux: Provide __ntp_gettimex64 implementation
include/struct___timeval64.h | 17 ++
include/sys/time.h | 9 ++
include/time.h | 15 +-
sysdeps/unix/sysv/linux/Makefile | 2 +-
sysdeps/unix/sysv/linux/adjtime.c | 26 +++-
sysdeps/unix/sysv/linux/adjtimex.c | 21 ++-
sysdeps/unix/sysv/linux/clock_adjtime.c | 64 ++++++++
sysdeps/unix/sysv/linux/include/sys/timex.h | 162 ++++++++++++++++++++
sysdeps/unix/sysv/linux/ntp_gettime.c | 24 ++-
sysdeps/unix/sysv/linux/ntp_gettimex.c | 24 ++-
sysdeps/unix/sysv/linux/syscalls.list | 1 -
11 files changed, 337 insertions(+), 28 deletions(-)
create mode 100644 include/struct___timeval64.h
create mode 100644 sysdeps/unix/sysv/linux/clock_adjtime.c
--
2.20.1
next reply other threads:[~2020-04-26 13:31 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-26 13:31 Lukasz Majewski [this message]
2020-04-26 13:31 ` [PATCH 01/10] y2038: include: Move struct __timeval64 definition to a separate file Lukasz Majewski
2020-04-27 15:18 ` Alistair Francis
2020-04-28 14:24 ` Adhemerval Zanella
2020-04-26 13:31 ` [PATCH 02/10] y2038: Introduce struct __timex64 - new internal glibc type Lukasz Majewski
2020-04-27 15:22 ` Alistair Francis
2020-04-28 14:34 ` Adhemerval Zanella
2020-04-29 21:45 ` Lukasz Majewski
2020-04-26 13:31 ` [PATCH 03/10] y2038: Provide conversion helpers for struct __timex64 Lukasz Majewski
2020-04-27 15:22 ` Alistair Francis
2020-04-28 15:56 ` Adhemerval Zanella
2020-04-26 13:31 ` [PATCH 04/10] y2038: linux: Provide __clock_adjtime64 implementation Lukasz Majewski
2020-04-27 22:12 ` Alistair Francis
2020-04-28 17:00 ` Adhemerval Zanella
2020-04-29 21:43 ` Lukasz Majewski
2020-04-26 13:31 ` [PATCH 05/10] y2038: linux: Provide ___adjtimex64 implementation Lukasz Majewski
2020-04-27 22:12 ` Alistair Francis
2020-04-28 17:14 ` Adhemerval Zanella
2020-04-26 13:31 ` [PATCH 06/10] y2038: linux: Provide __adjtime64 implementation Lukasz Majewski
2020-04-27 22:14 ` Alistair Francis
2020-04-28 18:33 ` Adhemerval Zanella
2020-04-26 13:31 ` [PATCH 07/10] y2038: Introduce struct __ntptimeval64 - new internal glibc type Lukasz Majewski
2020-04-28 18:41 ` Adhemerval Zanella
2020-04-29 21:28 ` Lukasz Majewski
2020-05-07 18:32 ` Lukasz Majewski
2020-04-26 13:31 ` [PATCH 08/10] y2038: Provide conversion helpers for struct __ntptimeval64 Lukasz Majewski
2020-04-26 13:31 ` [PATCH 09/10] y2038: linux: Provide __ntp_gettime64 implementation Lukasz Majewski
2020-04-26 13:31 ` [PATCH 10/10] y2038: linux: Provide __ntp_gettimex64 implementation Lukasz Majewski
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