mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 15:00:06 +00:00
42b926d303
This patch fixes the time64 support (added by 2e44b10b42) where it
misses the remaining argument updated if __NR_clock_nanosleep
returns EINTR.
Checked on i686-linux-gnu on 4.15 kernel (no time64 support) and
on 5.3 kernel (with time64 support).
Reviewed-by: Alistair Francis <alistair23@gmail.com>
104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/* Copyright (C) 2003-2019 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/>. */
|
|
|
|
#include <time.h>
|
|
#include <kernel-features.h>
|
|
#include <errno.h>
|
|
|
|
#include <sysdep-cancel.h>
|
|
#include "kernel-posix-cpu-timers.h"
|
|
|
|
#include <shlib-compat.h>
|
|
|
|
/* We can simply use the syscall. The CPU clocks are not supported
|
|
with this function. */
|
|
int
|
|
__clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec64 *req,
|
|
struct __timespec64 *rem)
|
|
{
|
|
int r;
|
|
|
|
if (clock_id == CLOCK_THREAD_CPUTIME_ID)
|
|
return EINVAL;
|
|
if (clock_id == CLOCK_PROCESS_CPUTIME_ID)
|
|
clock_id = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED);
|
|
|
|
/* If the call is interrupted by a signal handler or encounters an error,
|
|
it returns a positive value similar to errno. */
|
|
INTERNAL_SYSCALL_DECL (err);
|
|
|
|
#ifdef __ASSUME_TIME64_SYSCALLS
|
|
# ifndef __NR_clock_nanosleep_time64
|
|
# define __NR_clock_nanosleep_time64 __NR_clock_nanosleep
|
|
# endif
|
|
r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, err, clock_id,
|
|
flags, req, rem);
|
|
#else
|
|
# ifdef __NR_clock_nanosleep_time64
|
|
r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, err, clock_id,
|
|
flags, req, rem);
|
|
|
|
if (r != -ENOSYS)
|
|
return (INTERNAL_SYSCALL_ERROR_P (r, err)
|
|
? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
|
|
# endif /* __NR_clock_nanosleep_time64 */
|
|
|
|
if (! in_time_t_range (req->tv_sec))
|
|
{
|
|
__set_errno (EOVERFLOW);
|
|
return -1;
|
|
}
|
|
|
|
struct timespec tr32;
|
|
struct timespec ts32 = valid_timespec64_to_timespec (*req);
|
|
r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep, err, clock_id, flags,
|
|
&ts32, &tr32);
|
|
|
|
if (r == -EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0)
|
|
*rem = valid_timespec_to_timespec64 (tr32);
|
|
#endif /* __ASSUME_TIME64_SYSCALLS */
|
|
|
|
return (INTERNAL_SYSCALL_ERROR_P (r, err)
|
|
? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
|
|
}
|
|
|
|
#if __TIMESIZE != 64
|
|
int
|
|
__clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
|
|
struct timespec *rem)
|
|
{
|
|
int r;
|
|
struct __timespec64 treq64, trem64;
|
|
|
|
treq64 = valid_timespec_to_timespec64 (*req);
|
|
r = __clock_nanosleep_time64 (clock_id, flags, &treq64, &trem64);
|
|
|
|
if (r == EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0)
|
|
*rem = valid_timespec64_to_timespec (trem64);
|
|
|
|
return r;
|
|
}
|
|
#endif
|
|
libc_hidden_def (__clock_nanosleep)
|
|
versioned_symbol (libc, __clock_nanosleep, clock_nanosleep, GLIBC_2_17);
|
|
/* clock_nanosleep moved to libc in version 2.17;
|
|
old binaries may expect the symbol version it had in librt. */
|
|
#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
|
|
strong_alias (__clock_nanosleep, __clock_nanosleep_2);
|
|
compat_symbol (libc, __clock_nanosleep_2, clock_nanosleep, GLIBC_2_2);
|
|
#endif
|