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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-01-18 10:18:01 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-02 15:28:36 -0300 |
| commit | a4ed0471d71739928a0d0fa3258b3ff3b158e9b9 (patch) | |
| tree | db8118e3d4c787cdae80d343bb40bb7fc7ed2926 /sysdeps/unix/sysv/linux | |
| parent | a0698a5e92ceeed3409d28623b1d599da6bc887d (diff) | |
| download | glibc-a4ed0471d71739928a0d0fa3258b3ff3b158e9b9.tar.xz glibc-a4ed0471d71739928a0d0fa3258b3ff3b158e9b9.zip | |
Always define __USE_TIME_BITS64 when 64 bit time_t is used
It was raised on libc-help [1] that some Linux kernel interfaces expect
the libc to define __USE_TIME_BITS64 to indicate the time_t size for the
kABI. Different than defined by the initial y2038 design document [2],
the __USE_TIME_BITS64 is only defined for ABIs that support more than
one time_t size (by defining the _TIME_BITS for each module).
The 64 bit time_t redirects are now enabled using a different internal
define (__USE_TIME64_REDIRECTS). There is no expected change in semantic
or code generation.
Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and
arm-linux-gnueabi
[1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html
[2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign
Reviewed-by: DJ Delorie <dj@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux')
40 files changed, 82 insertions, 77 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h b/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h index 255feaa8cb..89534fea85 100644 --- a/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h +++ b/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h @@ -28,7 +28,7 @@ struct stat { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> #else __dev_t st_dev; /* Device. */ @@ -83,13 +83,13 @@ struct stat # else __ino64_t st_ino; /* File serial number. */ # endif -#endif /* __USE_TIME_BITS64 */ +#endif /* __USE_TIME64_REDIRECTS */ }; #ifdef __USE_LARGEFILE64 struct stat64 { -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> # else __dev_t st_dev; /* Device. */ @@ -125,7 +125,7 @@ struct stat64 unsigned long int st_ctimensec; /* Nsecs of last status change. */ # endif __ino64_t st_ino; /* File serial number. */ -# endif /* __USE_TIME_BITS64 */ +# endif /* __USE_TIME64_REDIRECTS */ }; #endif diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h index d997dbf594..b2102d3abf 100644 --- a/sysdeps/unix/sysv/linux/bits/socket-constants.h +++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h @@ -64,7 +64,7 @@ # define SO_TIMESTAMPNS_NEW 64 # define SO_TIMESTAMPING_NEW 65 -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS # define SO_RCVTIMEO SO_RCVTIMEO_NEW # define SO_SNDTIMEO SO_SNDTIMEO_NEW # define SO_TIMESTAMP SO_TIMESTAMP_NEW diff --git a/sysdeps/unix/sysv/linux/bits/time.h b/sysdeps/unix/sysv/linux/bits/time.h index b70ba58a7d..cab4057971 100644 --- a/sysdeps/unix/sysv/linux/bits/time.h +++ b/sysdeps/unix/sysv/linux/bits/time.h @@ -77,7 +77,7 @@ __BEGIN_DECLS /* Tune a POSIX clock. */ extern int clock_adjtime (__clockid_t __clock_id, struct timex *__utx) __THROW __nonnull((2)); -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # if defined(__REDIRECT_NTH) extern int __REDIRECT_NTH (clock_adjtime, (__clockid_t __clock_id, struct timex *__utx), diff --git a/sysdeps/unix/sysv/linux/bits/timex.h b/sysdeps/unix/sysv/linux/bits/timex.h index 398d8094f2..03ccde6d0a 100644 --- a/sysdeps/unix/sysv/linux/bits/timex.h +++ b/sysdeps/unix/sysv/linux/bits/timex.h @@ -25,7 +25,7 @@ struct timex { -# if defined __USE_TIME_BITS64 || (__TIMESIZE == 64 && __WORDSIZE == 32) +# if defined __USE_TIME64_REDIRECTS || (__TIMESIZE == 64 && __WORDSIZE == 32) unsigned int modes; /* mode selector */ int :32; /* pad */ long long offset; /* time offset (usec) */ 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 fae50281c7..86296ca922 100644 --- a/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h +++ b/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h @@ -26,7 +26,7 @@ The type `struct msg' is opaque. */ struct msqid_ds { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/types/struct_msqid64_ds_helper.h> #else struct ipc_perm msg_perm; /* structure describing operation permission */ diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h index 3c277ed1d8..2ac89b3ce4 100644 --- a/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h +++ b/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h @@ -23,7 +23,7 @@ /* Data structure describing a set of semaphores. */ struct semid_ds { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/types/struct_semid64_ds_helper.h> #else struct ipc_perm sem_perm; /* operation permission struct */ diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h index 09de0b4e3a..1012ed0317 100644 --- a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h +++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h @@ -23,7 +23,7 @@ /* Data structure describing a shared memory segment. */ struct shmid_ds { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/types/struct_shmid64_ds_helper.h> #else struct ipc_perm shm_perm; /* operation permission struct */ diff --git a/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h b/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h index 4b4822d6d0..47a9f0aaff 100644 --- a/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h +++ b/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h @@ -43,7 +43,7 @@ struct stat { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> #else __dev_t st_dev; /* Device. */ @@ -88,7 +88,7 @@ struct stat #ifdef __USE_LARGEFILE64 struct stat64 { -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> # else __dev_t st_dev; /* Device. */ diff --git a/sysdeps/unix/sysv/linux/features-time64.h b/sysdeps/unix/sysv/linux/features-time64.h index dd3442c2ea..8d573cd23e 100644 --- a/sysdeps/unix/sysv/linux/features-time64.h +++ b/sysdeps/unix/sysv/linux/features-time64.h @@ -24,9 +24,8 @@ # if _TIME_BITS == 64 # if ! defined (_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64 # error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64" -# elif __TIMESIZE == 32 -# define __USE_TIME_BITS64 1 # endif +# define __USE_TIME_BITS64 1 # elif _TIME_BITS == 32 # if __TIMESIZE > 32 # error "_TIME_BITS=32 is not compatible with __TIMESIZE > 32" @@ -34,4 +33,10 @@ # else # error Invalid _TIME_BITS value (can only be 32 or 64-bit) # endif +#elif __TIMESIZE == 64 +# define __USE_TIME_BITS64 1 +#endif + +#if defined __USE_TIME_BITS64 && __TIMESIZE == 32 +# define __USE_TIME64_REDIRECTS 1 #endif diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h index 58b523d03a..80a76a17dc 100644 --- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h +++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h @@ -54,7 +54,7 @@ # define SO_TIMESTAMPNS_NEW 0x4039 # define SO_TIMESTAMPING_NEW 0x403A -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS # define SO_RCVTIMEO SO_RCVTIMEO_NEW # define SO_SNDTIMEO SO_SNDTIMEO_NEW # define SO_TIMESTAMP SO_TIMESTAMP_NEW diff --git a/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h b/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h index 069efdbc55..09ea40054b 100644 --- a/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h +++ b/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h @@ -28,7 +28,7 @@ struct stat { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> #else __dev_t st_dev; /* Device. */ @@ -83,13 +83,13 @@ struct stat # else __ino64_t st_ino; /* File serial number. */ # endif -#endif /* __USE_TIME_BITS64 */ +#endif /* __USE_TIME64_REDIRECTS */ }; #ifdef __USE_LARGEFILE64 struct stat64 { -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> # else __dev_t st_dev; /* Device. */ @@ -125,7 +125,7 @@ struct stat64 unsigned long int st_ctimensec; /* Nsecs of last status change. */ # endif __ino64_t st_ino; /* File serial number. */ -# endif /* __USE_TIME_BITS64 */ +# endif /* __USE_TIME64_REDIRECTS */ }; #endif 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 2bc7cac06d..4995e0a4a5 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 @@ -26,7 +26,7 @@ The type `struct msg' is opaque. */ struct msqid_ds { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/types/struct_msqid64_ds_helper.h> #else struct ipc_perm msg_perm; /* structure describing operation permission */ diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h index dd8fbebcf4..df88949dc2 100644 --- a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h +++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h @@ -23,7 +23,7 @@ /* Data structure describing a set of semaphores. */ struct semid_ds { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/types/struct_semid64_ds_helper.h> #else struct ipc_perm sem_perm; /* operation permission struct */ diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h index 58ac572b6e..cb3b0303aa 100644 --- a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h +++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h @@ -23,7 +23,7 @@ /* Data structure describing a shared memory segment. */ struct shmid_ds { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/types/struct_shmid64_ds_helper.h> #else struct ipc_perm shm_perm; /* operation permission struct */ diff --git a/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h b/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h index 3b1db157bc..b7f20189b1 100644 --- a/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h +++ b/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h @@ -25,7 +25,7 @@ struct stat { -#ifdef __USE_TIME_BITS64 +#ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> #else __dev_t st_dev; /* Device. */ @@ -80,13 +80,13 @@ struct stat # else __ino64_t st_ino; /* File serial number. */ # endif -#endif /* __USE_TIME_BITS64 */ +#endif /* __USE_TIME64_REDIRECTS */ }; #ifdef __USE_LARGEFILE64 struct stat64 { -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS # include <bits/struct_stat_time64_helper.h> # else __dev_t st_dev; /* Device. */ @@ -122,7 +122,7 @@ struct stat64 unsigned long int st_ctimensec; /* Nsecs of last status change. */ # endif __ino64_t st_ino; /* File serial number. */ -# endif /* __USE_TIME_BITS64 */ +# endif /* __USE_TIME64_REDIRECTS */ }; #endif |