linux_rseq.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause
    3  *
    4  * Copyright (c) 2022 Dmitry Chagin <dchagin@FreeBSD.org>
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD$");
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 
   34 #ifdef COMPAT_LINUX32
   35 #include <machine/../linux32/linux.h>
   36 #include <machine/../linux32/linux32_proto.h>
   37 #else
   38 #include <machine/../linux/linux.h>
   39 #include <machine/../linux/linux_proto.h>
   40 #endif
   41 
   42 
   43 enum linux_rseq_cpu_id_state {
   44         LINUX_RSEQ_CPU_ID_UNINITIALIZED                 = -1,
   45         LINUX_RSEQ_CPU_ID_REGISTRATION_FAILED           = -2,
   46 };
   47 
   48 enum linux_rseq_flags {
   49         LINUX_RSEQ_FLAG_UNREGISTER                      = (1 << 0),
   50 };
   51 
   52 enum linux_rseq_cs_flags_bit {
   53         LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT    = 0,
   54         LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT     = 1,
   55         LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT    = 2,
   56 };
   57 
   58 enum linux_rseq_cs_flags {
   59         LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT        =
   60                 (1U << LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT),
   61         LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL =
   62                 (1U << LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT),
   63         LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE        =
   64                 (1U << LINUX_RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT),
   65 };
   66 
   67 struct linux_rseq_cs {
   68         uint32_t version;
   69         uint32_t flags;
   70         uint64_t start_ip;
   71         uint64_t post_commit_offset;
   72         uint64_t abort_ip;
   73 } __attribute__((aligned(4 * sizeof(uint64_t))));
   74 
   75 struct linux_rseq {
   76         uint32_t cpu_id_start;
   77         uint32_t cpu_id;
   78         uint64_t rseq_cs;
   79         uint32_t flags;
   80 } __attribute__((aligned(4 * sizeof(uint64_t))));
   81 
   82 int
   83 linux_rseq(struct thread *td, struct linux_rseq_args *args)
   84 {
   85 
   86         return (ENOSYS);
   87 }

Cache object: 4d6fee71d760266a31bb9f867b2eb13b

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/compat/linux/linux_rseq.c

FreeBSD/Linux Kernel Cross Reference
sys/compat/linux/linux_rseq.c