mirror of
https://github.com/freebsd/freebsd-src
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3bc8099697
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
Similar commit in current:
(cherry picked from commit 685dc743dc)
161 lines
3.7 KiB
C
161 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Dmitry Chagin <dchagin@FreeBSD.org>
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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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#include <sys/elf.h>
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#include <sys/errno.h>
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#include <sys/proc.h>
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#include <sys/stddef.h>
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#define _KERNEL
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#include <sys/vdso.h>
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#undef _KERNEL
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#include <stdbool.h>
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#include <machine/atomic.h>
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#include <machine/cpufunc.h>
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#include <machine/stdarg.h>
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#include <i386/linux/linux.h>
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#include <i386/linux/linux_syscall.h>
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#include <compat/linux/linux_errno.h>
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#include <compat/linux/linux_time.h>
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/* The kernel fixup this at vDSO install */
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uintptr_t *kern_timekeep_base = NULL;
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uint32_t kern_tsc_selector = 0;
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uint32_t kern_cpu_selector = 0;
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#include <x86/linux/linux_vdso_gettc_x86.inc>
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#include <x86/linux/linux_vdso_getcpu_x86.inc>
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static int
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write(int fd, const void *buf, size_t size)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_write), "b"(fd), "c"(buf), "d"(size)
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: "cc", "memory"
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);
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return (res);
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}
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static int
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__vdso_clock_gettime_fallback(clockid_t clock_id, struct l_timespec *ts)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_linux_clock_gettime), "b"(clock_id), "c"(ts)
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: "cc", "memory"
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);
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return (res);
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}
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static int
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__vdso_clock_gettime64_fallback(clockid_t clock_id, struct l_timespec64 *ts)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_linux_clock_gettime64), "b"(clock_id), "c"(ts)
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: "cc", "memory"
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);
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return (res);
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}
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static int
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__vdso_gettimeofday_fallback(l_timeval *tv, struct timezone *tz)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_gettimeofday), "b"(tv), "c"(tz)
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: "cc", "memory"
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);
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return (res);
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}
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static int
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__vdso_clock_getres_fallback(clockid_t clock_id, struct l_timespec *ts)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_linux_clock_getres), "b"(clock_id), "c"(ts)
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: "cc", "memory"
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);
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return (res);
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}
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static int
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__vdso_getcpu_fallback(uint32_t *cpu, uint32_t *node, void *cache)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_linux_getcpu), "D"(cpu), "S"(node), "d"(cache)
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: "cc", "memory"
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);
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return (res);
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}
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static int
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__vdso_time_fallback(long *tm)
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{
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int res;
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__asm__ __volatile__
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(
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"int $0x80"
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: "=a"(res)
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: "a"(LINUX_SYS_linux_time), "b"(tm)
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: "cc", "memory"
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);
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return (res);
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}
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#include <compat/linux/linux_vdso_gtod.inc>
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