From a4ed0471d71739928a0d0fa3258b3ff3b158e9b9 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Thu, 18 Jan 2024 10:18:01 -0300 Subject: 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 --- posix/glob.h | 4 ++-- posix/sched.h | 2 +- posix/sys/wait.h | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) (limited to 'posix') diff --git a/posix/glob.h b/posix/glob.h index 3406662840..b6bba0fbcd 100644 --- a/posix/glob.h +++ b/posix/glob.h @@ -150,7 +150,7 @@ extern int glob (const char *__restrict __pattern, int __flags, /* Free storage allocated in PGLOB by a previous `glob' call. */ extern void globfree (glob_t *__pglob) __THROW; #else -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS extern int __REDIRECT_NTHNL (glob, (const char *__restrict __pattern, int __flags, int (*__errfunc) (const char *, int), @@ -170,7 +170,7 @@ extern void __REDIRECT_NTH (globfree, (glob_t *__pglob), globfree64); #endif #ifdef __USE_LARGEFILE64 -# ifdef __USE_TIME_BITS64 +# ifdef __USE_TIME64_REDIRECTS extern int __REDIRECT_NTHNL (glob64, (const char *__restrict __pattern, int __flags, int (*__errfunc) (const char *, int), diff --git a/posix/sched.h b/posix/sched.h index 3eac206f35..49f504a488 100644 --- a/posix/sched.h +++ b/posix/sched.h @@ -74,7 +74,7 @@ extern int sched_get_priority_max (int __algorithm) __THROW; extern int sched_get_priority_min (int __algorithm) __THROW; /* Get the SCHED_RR interval for the named process. */ -#ifndef __USE_TIME_BITS64 +#ifndef __USE_TIME64_REDIRECTS extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW; #else # ifdef __REDIRECT_NTH diff --git a/posix/sys/wait.h b/posix/sys/wait.h index edbb7b4392..1f44ee1145 100644 --- a/posix/sys/wait.h +++ b/posix/sys/wait.h @@ -139,7 +139,7 @@ struct rusage; nil, store information about the child's resource usage there. If the WUNTRACED bit is set in OPTIONS, return status for stopped children; otherwise don't. */ -# ifndef __USE_TIME_BITS64 +# ifndef __USE_TIME64_REDIRECTS extern __pid_t wait3 (int *__stat_loc, int __options, struct rusage * __usage) __THROWNL; # else @@ -154,7 +154,7 @@ extern __pid_t __REDIRECT_NTHNL (wait3, (int *__stat_loc, int __options, #endif #ifdef __USE_MISC -# ifndef __USE_TIME_BITS64 +# ifndef __USE_TIME64_REDIRECTS /* PID is like waitpid. Other args are like wait3. */ extern __pid_t wait4 (__pid_t __pid, int *__stat_loc, int __options, struct rusage *__usage) __THROWNL; -- cgit 1.4.1