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b112f53e9d
This patch replaces auto generated wrapper (as described in sysdeps/unix/sysv/linux/syscalls.list) for sched_rr_get_interval with one which adds extra support for reading 64 bit time values on machines with __TIMESIZE != 64. There is no functional change for architectures already supporting 64 bit time ABI. The sched_rr_get_interval declaration in ./include/sched.h is not followed by corresponding libc_hidden_proto(), so it has been assumed that newly introduced syscall wrapper doesn't require libc_hidden_def() (which has been added by template used with auto generation script). Moreover, the code for building sched_rr_gi.c file is already placed in ./posix/Makefiles, so there was no need to add it elsewhere. Performed tests and validation are the same as for timer_gettime() conversion (sysdeps/unix/sysv/linux/timer_gettime.c). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/* sched_rr_get_interval -- get the scheduler's SCHED_RR policy time interval.
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Copyright (C) 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 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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int
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__sched_rr_get_interval64 (pid_t pid, struct __timespec64 *tp)
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{
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#ifdef __ASSUME_TIME64_SYSCALLS
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# ifndef __NR_sched_rr_get_interval_time64
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# define __NR_sched_rr_get_interval_time64 __NR_sched_rr_get_interval
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# endif
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return INLINE_SYSCALL_CALL (sched_rr_get_interval_time64, pid, tp);
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#else
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# ifdef __NR_sched_rr_get_interval_time64
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int ret = INLINE_SYSCALL_CALL (sched_rr_get_interval_time64, pid, tp);
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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 timespec tp32;
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int retval = INLINE_SYSCALL_CALL (sched_rr_get_interval, pid, &tp32);
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if (retval == 0)
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*tp = valid_timespec_to_timespec64 (tp32);
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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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libc_hidden_def (__sched_rr_get_interval64)
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int
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__sched_rr_get_interval (pid_t pid, struct timespec *tp)
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{
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int ret;
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struct __timespec64 tp64;
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ret = __sched_rr_get_interval64 (pid, &tp64);
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if (ret == 0)
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{
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if (! in_time_t_range (tp64.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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*tp = valid_timespec64_to_timespec (tp64);
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}
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return ret;
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}
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#endif
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strong_alias (__sched_rr_get_interval, sched_rr_get_interval)
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