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 --- misc/sys/ioctl.h | 2 +- misc/sys/select.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'misc') diff --git a/misc/sys/ioctl.h b/misc/sys/ioctl.h index 3f2338ddd3..ea6583e122 100644 --- a/misc/sys/ioctl.h +++ b/misc/sys/ioctl.h @@ -38,7 +38,7 @@ __BEGIN_DECLS /* Perform the I/O control operation specified by REQUEST on FD. One argument may follow; its presence and type depend on REQUEST. Return value depends on REQUEST. Usually -1 indicates error. */ -#ifndef __USE_TIME_BITS64 +#ifndef __USE_TIME64_REDIRECTS extern int ioctl (int __fd, unsigned long int __request, ...) __THROW; #else # ifdef __REDIRECT diff --git a/misc/sys/select.h b/misc/sys/select.h index e6a0c1b8b2..2e45e94bc1 100644 --- a/misc/sys/select.h +++ b/misc/sys/select.h @@ -98,7 +98,7 @@ __BEGIN_DECLS This function is a cancellation point and therefore not marked with __THROW. */ -#ifndef __USE_TIME_BITS64 +#ifndef __USE_TIME64_REDIRECTS extern int select (int __nfds, fd_set *__restrict __readfds, fd_set *__restrict __writefds, fd_set *__restrict __exceptfds, @@ -123,7 +123,7 @@ extern int __REDIRECT (select, This function is a cancellation point and therefore not marked with __THROW. */ -# ifndef __USE_TIME_BITS64 +# ifndef __USE_TIME64_REDIRECTS extern int pselect (int __nfds, fd_set *__restrict __readfds, fd_set *__restrict __writefds, fd_set *__restrict __exceptfds, -- cgit 1.4.1