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0334369949
During the conversion to support 64 bit time on some architectures with __WORDSIZE == 32 && __TIMESIZE != 64 the libc_hidden_def attribute for eligible functions was by mistake omitted. This patch fixes this issue and exports (and allows using) those functions when Y2038 support is enabled in glibc.
108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <time.h>
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#include <kernel-features.h>
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#include <errno.h>
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#include <sysdep-cancel.h>
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#include "kernel-posix-cpu-timers.h"
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#include <shlib-compat.h>
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/* We can simply use the syscall. The CPU clocks are not supported
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with this function. */
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int
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__clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec64 *req,
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struct __timespec64 *rem)
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{
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int r;
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if (clock_id == CLOCK_THREAD_CPUTIME_ID)
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return EINVAL;
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if (clock_id == CLOCK_PROCESS_CPUTIME_ID)
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clock_id = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED);
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/* If the call is interrupted by a signal handler or encounters an error,
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it returns a positive value similar to errno. */
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#ifdef __ASSUME_TIME64_SYSCALLS
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# ifndef __NR_clock_nanosleep_time64
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# define __NR_clock_nanosleep_time64 __NR_clock_nanosleep
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# endif
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r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id,
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flags, req, rem);
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#else
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# ifdef __NR_clock_nanosleep_time64
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r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id,
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flags, req, rem);
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if (! INTERNAL_SYSCALL_ERROR_P (r))
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return 0;
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if (INTERNAL_SYSCALL_ERRNO (r) != ENOSYS)
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return INTERNAL_SYSCALL_ERRNO (r);
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# endif /* __NR_clock_nanosleep_time64 */
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if (! in_time_t_range (req->tv_sec))
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{
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__set_errno (EOVERFLOW);
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return -1;
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}
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struct timespec tr32;
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struct timespec ts32 = valid_timespec64_to_timespec (*req);
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r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep, clock_id, flags,
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&ts32, &tr32);
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if (INTERNAL_SYSCALL_ERROR_P (r))
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{
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if (INTERNAL_SYSCALL_ERRNO (r) == EINTR && rem != NULL
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&& (flags & TIMER_ABSTIME) == 0)
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*rem = valid_timespec_to_timespec64 (tr32);
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}
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#endif /* __ASSUME_TIME64_SYSCALLS */
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return (INTERNAL_SYSCALL_ERROR_P (r)
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? INTERNAL_SYSCALL_ERRNO (r) : 0);
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}
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#if __TIMESIZE != 64
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libc_hidden_def (__clock_nanosleep_time64)
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int
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__clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
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struct timespec *rem)
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{
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int r;
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struct __timespec64 treq64, trem64;
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treq64 = valid_timespec_to_timespec64 (*req);
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r = __clock_nanosleep_time64 (clock_id, flags, &treq64, &trem64);
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if (r == EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0)
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*rem = valid_timespec64_to_timespec (trem64);
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return r;
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}
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#endif
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libc_hidden_def (__clock_nanosleep)
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versioned_symbol (libc, __clock_nanosleep, clock_nanosleep, GLIBC_2_17);
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/* clock_nanosleep moved to libc in version 2.17;
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old binaries may expect the symbol version it had in librt. */
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#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
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strong_alias (__clock_nanosleep, __clock_nanosleep_2);
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compat_symbol (libc, __clock_nanosleep_2, clock_nanosleep, GLIBC_2_2);
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#endif
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