[RFC 4/6] y2038: Enhance struct msqid_ds to support 64 bit time

Lukasz Majewski lukma@denx.de
Tue Dec 29 10:34:22 GMT 2020


Dear Community,

> ---
>  sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h |  8 ++++++++
>  .../sysv/linux/hppa/bits/types/struct_msqid_ds.h     |  8 ++++++++
>  .../sysv/linux/mips/bits/types/struct_msqid_ds.h     | 12
> ++++++++++-- .../sysv/linux/powerpc/bits/types/struct_msqid_ds.h  |
> 8 ++++++++ .../sysv/linux/sparc/bits/types/struct_msqid_ds.h    |  8
> ++++++++ 5 files changed, 42 insertions(+), 2 deletions(-)
> 
> diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h
> b/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h index
> 43b38175ad..6d8194991f 100644 ---
> a/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h +++
> b/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h @@ -20,18
> +20,26 @@ # error "Never use <bits/msq.h> directly; include
> <sys/msg.h> instead." #endif
>  

Gentle request for feedback for this patch set.

> +#include <bits/types/time_t.h>
> +
>  /* Structure of record for one message inside the kernel.
>     The type `struct msg' is opaque.  */
>  struct msqid_ds
>  {
>    struct ipc_perm msg_perm;	/* structure describing operation
> permission */ #if __TIMESIZE == 32
> +# if __USE_TIME_BITS64
> +  __time64_t msg_stime;	/* time of last msgsnd command */
> +  __time64_t msg_rtime;	/* time of last msgsnd command */
> +  __time64_t msg_ctime;	/* time of last change */
> +# else
>    __time_t msg_stime;		/* time of last msgsnd command
> */ unsigned long int __msg_stime_high;
>    __time_t msg_rtime;		/* time of last msgsnd command
> */ unsigned long int __msg_rtime_high;
>    __time_t msg_ctime;		/* time of last change */
>    unsigned long int __msg_ctime_high;
> +# endif
>  #else
>    __time_t msg_stime;		/* time of last msgsnd command
> */ __time_t msg_rtime;		/* time of last msgsnd command
> */ diff --git
> a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h
> b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h index
> 16eac46941..08c5323f03 100644 ---
> a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h +++
> b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h @@ -20,18
> +20,26 @@ # error "Never use <bits/msq.h> directly; include
> <sys/msg.h> instead." #endif 
> +#include <bits/types/time_t.h>
> +
>  /* Structure of record for one message inside the kernel.
>     The type `struct msg' is opaque.  */
>  struct msqid_ds
>  {
>    struct ipc_perm msg_perm;	/* structure describing operation
> permission */ #if __TIMESIZE == 32
> +# if __USE_TIME_BITS64
> +  __time64_t msg_stime;	/* time of last msgsnd command */
> +  __time64_t msg_rtime;	/* time of last msgsnd command */
> +  __time64_t msg_ctime;	/* time of last change */
> +# else
>    unsigned long int __msg_stime_high;
>    __time_t msg_stime;		/* time of last msgsnd command
> */ unsigned long int __msg_rtime_high;
>    __time_t msg_rtime;		/* time of last msgsnd command
> */ unsigned long int __msg_ctime_high;
>    __time_t msg_ctime;		/* time of last change */
> +# endif
>  #else
>    __time_t msg_stime;		/* time of last msgsnd command
> */ __time_t msg_rtime;		/* time of last msgsnd command
> */ diff --git
> a/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h
> b/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h index
> 513e01a171..ac077bfca8 100644 ---
> a/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h +++
> b/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h @@ -20,26
> +20,34 @@ # error "Never use <bits/msq.h> directly; include
> <sys/msg.h> instead." #endif 
> +#include <bits/types/time_t.h>
> +
>  /* Structure of record for one message inside the kernel.
>     The type `struct msg' is opaque.  */
>  struct msqid_ds
>  {
>    struct ipc_perm msg_perm;	/* structure describing operation
> permission */ #if __TIMESIZE == 32
> -# ifdef __MIPSEL__
> +# if __USE_TIME_BITS64
> +  __time64_t msg_stime;	/* time of last msgsnd command */
> +  __time64_t msg_rtime;	/* time of last msgsnd command */
> +  __time64_t msg_ctime;	/* time of last change */
> +# else
> +#  ifdef __MIPSEL__
>    __time_t msg_stime;		/* time of last msgsnd command
> */ unsigned long int __msg_stime_high;
>    __time_t msg_rtime;		/* time of last msgsnd command
> */ unsigned long int __msg_rtime_high;
>    __time_t msg_ctime;		/* time of last change */
>    unsigned long int __msg_ctime_high;
> -# else
> +#  else
>    unsigned long int __msg_stime_high;
>    __time_t msg_stime;		/* time of last msgsnd command
> */ unsigned long int __msg_rtime_high;
>    __time_t msg_rtime;		/* time of last msgsnd command
> */ unsigned long int __msg_ctime_high;
>    __time_t msg_ctime;		/* time of last change */
> +#  endif
>  # endif
>  #else
>    __time_t msg_stime;		/* time of last msgsnd command
> */ diff --git
> a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h
> b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h index
> 35cc51f733..bf450c9605 100644 ---
> a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h +++
> b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h @@
> -20,18 +20,26 @@ # error "Never use <bits/msq.h> directly; include
> <sys/msg.h> instead." #endif 
> +#include <bits/types/time_t.h>
> +
>  /* Structure of record for one message inside the kernel.
>     The type `struct msg' is opaque.  */
>  struct msqid_ds
>  {
>    struct ipc_perm msg_perm;	/* structure describing operation
> permission */ #if __TIMESIZE == 32
> +# if __USE_TIME_BITS64
> +  __time64_t msg_stime;	/* time of last msgsnd command */
> +  __time64_t msg_rtime;	/* time of last msgsnd command */
> +  __time64_t msg_ctime;	/* time of last change */
> +# else
>    unsigned long int __msg_stime_high;
>    __time_t msg_stime;		/* time of last msgsnd command
> */ unsigned long int __msg_rtime_high;
>    __time_t msg_rtime;		/* time of last msgsnd command
> */ unsigned long int __msg_ctime_high;
>    __time_t msg_ctime;		/* time of last change */
> +# endif
>  #else
>    __time_t msg_stime;		/* time of last msgsnd command
> */ __time_t msg_rtime;		/* time of last msgsnd command
> */ diff --git
> a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h
> b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h index
> 502c23d91e..a9e309dafc 100644 ---
> a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h +++
> b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h @@
> -20,18 +20,26 @@ # error "Never use <bits/msq.h> directly; include
> <sys/msg.h> instead." #endif 
> +#include <bits/types/time_t.h>
> +
>  /* Structure of record for one message inside the kernel.
>     The type `struct msg' is opaque.  */
>  struct msqid_ds
>  {
>    struct ipc_perm msg_perm;	/* structure describing operation
> permission */ #if __TIMESIZE == 32
> +# if __USE_TIME_BITS64
> +  __time64_t msg_stime;	/* time of last msgsnd command */
> +  __time64_t msg_rtime;	/* time of last msgsnd command */
> +  __time64_t msg_ctime;	/* time of last change */
> +# else
>    unsigned long int __msg_stime_high;
>    __time_t msg_stime;		/* time of last msgsnd command
> */ unsigned long int __msg_rtime_high;
>    __time_t msg_rtime;		/* time of last msgsnd command
> */ unsigned long int __msg_ctime_high;
>    __time_t msg_ctime;		/* time of last change */
> +# endif
>  #else
>    __time_t msg_stime;		/* time of last msgsnd command
> */ __time_t msg_rtime;		/* time of last msgsnd command
> */




Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@denx.de
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