mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
a4ed0471d7
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>
109 lines
4.3 KiB
C
109 lines
4.3 KiB
C
/* Checking macros for poll functions.
|
|
Copyright (C) 2012-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_POLL_H
|
|
# error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead."
|
|
#endif
|
|
|
|
|
|
__BEGIN_DECLS
|
|
|
|
extern int __REDIRECT (__poll_alias, (struct pollfd *__fds, nfds_t __nfds,
|
|
int __timeout), poll);
|
|
extern int __poll_chk (struct pollfd *__fds, nfds_t __nfds, int __timeout,
|
|
__SIZE_TYPE__ __fdslen)
|
|
__attr_access ((__write_only__, 1, 2));
|
|
extern int __REDIRECT (__poll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
|
|
int __timeout, __SIZE_TYPE__ __fdslen),
|
|
__poll_chk)
|
|
__warnattr ("poll called with fds buffer too small file nfds entries");
|
|
|
|
__fortify_function __fortified_attr_access (__write_only__, 1, 2)
|
|
__attribute_overloadable__ int
|
|
poll (__fortify_clang_overload_arg (struct pollfd *, ,__fds), nfds_t __nfds,
|
|
int __timeout)
|
|
__fortify_clang_warning_only_if_bos_lt2 (__nfds, __fds, sizeof (*__fds),
|
|
"poll called with fds buffer "
|
|
"too small file nfds entries")
|
|
{
|
|
return __glibc_fortify (poll, __nfds, sizeof (*__fds),
|
|
__glibc_objsize (__fds),
|
|
__fds, __nfds, __timeout);
|
|
}
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
# ifdef __USE_TIME64_REDIRECTS
|
|
extern int __REDIRECT (__ppoll64_alias, (struct pollfd *__fds, nfds_t __nfds,
|
|
const struct timespec *__timeout,
|
|
const __sigset_t *__ss), __ppoll64);
|
|
extern int __ppoll64_chk (struct pollfd *__fds, nfds_t __nfds,
|
|
const struct timespec *__timeout,
|
|
const __sigset_t *__ss, __SIZE_TYPE__ __fdslen)
|
|
__attr_access ((__write_only__, 1, 2));
|
|
extern int __REDIRECT (__ppoll64_chk_warn, (struct pollfd *__fds, nfds_t __n,
|
|
const struct timespec *__timeout,
|
|
const __sigset_t *__ss,
|
|
__SIZE_TYPE__ __fdslen),
|
|
__ppoll64_chk)
|
|
__warnattr ("ppoll called with fds buffer too small file nfds entries");
|
|
|
|
__fortify_function __fortified_attr_access (__write_only__, 1, 2)
|
|
__attribute_overloadable__ int
|
|
ppoll (__fortify_clang_overload_arg (struct pollfd *, ,__fds), nfds_t __nfds,
|
|
const struct timespec *__timeout, const __sigset_t *__ss)
|
|
__fortify_clang_warning_only_if_bos_lt2 (__nfds, __fds, sizeof (*__fds),
|
|
"ppoll called with fds buffer "
|
|
"too small file nfds entries")
|
|
{
|
|
return __glibc_fortify (ppoll64, __nfds, sizeof (*__fds),
|
|
__glibc_objsize (__fds),
|
|
__fds, __nfds, __timeout, __ss);
|
|
}
|
|
# else
|
|
extern int __REDIRECT (__ppoll_alias, (struct pollfd *__fds, nfds_t __nfds,
|
|
const struct timespec *__timeout,
|
|
const __sigset_t *__ss), ppoll);
|
|
extern int __ppoll_chk (struct pollfd *__fds, nfds_t __nfds,
|
|
const struct timespec *__timeout,
|
|
const __sigset_t *__ss, __SIZE_TYPE__ __fdslen)
|
|
__attr_access ((__write_only__, 1, 2));
|
|
extern int __REDIRECT (__ppoll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
|
|
const struct timespec *__timeout,
|
|
const __sigset_t *__ss,
|
|
__SIZE_TYPE__ __fdslen),
|
|
__ppoll_chk)
|
|
__warnattr ("ppoll called with fds buffer too small file nfds entries");
|
|
|
|
__fortify_function __fortified_attr_access (__write_only__, 1, 2)
|
|
__attribute_overloadable__ int
|
|
ppoll (__fortify_clang_overload_arg (struct pollfd *, ,__fds), nfds_t __nfds,
|
|
const struct timespec *__timeout, const __sigset_t *__ss)
|
|
__fortify_clang_warning_only_if_bos_lt2 (__nfds, __fds, sizeof (*__fds),
|
|
"ppoll called with fds buffer "
|
|
"too small file nfds entries")
|
|
{
|
|
return __glibc_fortify (ppoll, __nfds, sizeof (*__fds),
|
|
__glibc_objsize (__fds),
|
|
__fds, __nfds, __timeout, __ss);
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
__END_DECLS
|