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348c41d181
PR: 256905 Reviewed by: arichardson, mhorne MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D30963
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*-
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* Copyright (c) 2021 Jessica Clarke
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/elf.h>
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#include <sys/time.h>
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#include <sys/vdso.h>
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#include <machine/riscvreg.h>
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#include <errno.h>
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#include "libc_private.h"
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#pragma weak __vdso_gettc
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int
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__vdso_gettc(const struct vdso_timehands *th, u_int *tc)
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{
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if (th->th_algo != VDSO_TH_ALGO_RISCV_RDTIME)
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return (ENOSYS);
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*tc = csr_read(time);
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return (0);
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}
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#pragma weak __vdso_gettimekeep
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int
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__vdso_gettimekeep(struct vdso_timekeep **tk)
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{
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return (_elf_aux_info(AT_TIMEKEEP, tk, sizeof(*tk)));
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}
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