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https://sourceware.org/git/glibc.git
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477910b83e
The symbols were moved using scripts/move-symbol-to-libc.py. The way the ABI intransition is implemented is changed with this commit: the implementation is now consolidated in one file with a TIMER_T_WAS_INT_COMPAT check. The shared librt is now empty, so this commit adds a placeholder symbol at the base version, GLIBC_2.2, and potentially at the GLIBC_2.3.3 version as well (the leftover from the int/timer_t ABI transition). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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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 License as
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published by the Free Software Foundation; either version 2.1 of the
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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; see the file COPYING.LIB. If
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not, see <https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sysdep.h>
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#include <kernel-features.h>
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#include "kernel-posix-timers.h"
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#include <shlib-compat.h>
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#if !TIMER_T_WAS_INT_COMPAT
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int
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___timer_settime64 (timer_t timerid, int flags,
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const struct __itimerspec64 *value,
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struct __itimerspec64 *ovalue)
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{
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kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
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# ifdef __ASSUME_TIME64_SYSCALLS
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# ifndef __NR_timer_settime64
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# define __NR_timer_settime64 __NR_timer_settime
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# endif
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return INLINE_SYSCALL_CALL (timer_settime64, ktimerid, flags, value,
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ovalue);
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# else
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# ifdef __NR_timer_settime64
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int ret = INLINE_SYSCALL_CALL (timer_settime64, ktimerid, flags, value,
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ovalue);
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if (ret == 0 || errno != ENOSYS)
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return ret;
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# endif
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struct itimerspec its32, oits32;
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if (! in_time_t_range ((value->it_value).tv_sec)
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|| ! in_time_t_range ((value->it_interval).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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its32.it_interval = valid_timespec64_to_timespec (value->it_interval);
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its32.it_value = valid_timespec64_to_timespec (value->it_value);
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int retval = INLINE_SYSCALL_CALL (timer_settime, ktimerid, flags,
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&its32, ovalue ? &oits32 : NULL);
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if (retval == 0 && ovalue)
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{
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ovalue->it_interval = valid_timespec_to_timespec64 (oits32.it_interval);
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ovalue->it_value = valid_timespec_to_timespec64 (oits32.it_value);
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}
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return retval;
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# endif
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}
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# if __TIMESIZE == 64
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versioned_symbol (libc, ___timer_settime64, timer_settime, GLIBC_2_34);
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# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
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compat_symbol (librt, ___timer_settime64, timer_settime, GLIBC_2_2);
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# endif
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#else /* __TIMESIZE != 64 */
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libc_hidden_ver (___timer_settime64, __timer_settime64)
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versioned_symbol (libc, ___timer_settime64, __timer_settime64, GLIBC_2_34);
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int
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__timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
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struct itimerspec *ovalue)
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{
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struct __itimerspec64 its64, oits64;
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int retval;
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its64.it_interval = valid_timespec_to_timespec64 (value->it_interval);
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its64.it_value = valid_timespec_to_timespec64 (value->it_value);
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retval = __timer_settime64 (timerid, flags, &its64, ovalue ? &oits64 : NULL);
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if (retval == 0 && ovalue)
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{
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ovalue->it_interval = valid_timespec64_to_timespec (oits64.it_interval);
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ovalue->it_value = valid_timespec64_to_timespec (oits64.it_value);
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}
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return retval;
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}
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versioned_symbol (libc, __timer_settime, timer_settime, GLIBC_2_34);
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# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
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compat_symbol (librt, __timer_settime, timer_settime, GLIBC_2_2);
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# endif
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# endif /* __TIMESIZE != 64 */
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#else /* TIMER_T_WAS_INT_COMPAT */
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extern __typeof (timer_settime) __timer_settime_new;
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libc_hidden_proto (__timer_settime_new)
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int
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___timer_settime_new (timer_t timerid, int flags,
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const struct itimerspec *value,
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struct itimerspec *ovalue)
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{
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kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
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return INLINE_SYSCALL_CALL (timer_settime, ktimerid, flags, value, ovalue);
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}
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versioned_symbol (libc, ___timer_settime_new, timer_settime, GLIBC_2_34);
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libc_hidden_ver (___timer_settime_new, __timer_settime_new)
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# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_3, GLIBC_2_34)
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compat_symbol (librt, ___timer_settime_new, timer_settime, GLIBC_2_3_3);
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# endif
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# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
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int
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__timer_settime_old (int timerid, int flags, const struct itimerspec *value,
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struct itimerspec *ovalue)
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{
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return __timer_settime_new (__timer_compat_list[timerid], flags,
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value, ovalue);
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}
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compat_symbol (librt, __timer_settime_old, timer_settime, GLIBC_2_2);
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# endif
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#endif /* TIMER_T_WAS_INT_COMPAT */
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