linux_sigframe.h

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    1 /*-
    2  * Copyright (c) 1994-1996 Søren Schmidt
    3  * Copyright (c) 2018 Turing Robotic Industries Inc.
    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  * $FreeBSD$
   28  */
   29 
   30 #ifndef _ARM64_LINUX_SIGFRAME_H_
   31 #define _ARM64_LINUX_SIGFRAME_H_
   32 
   33 struct _l_aarch64_ctx {
   34         uint32_t        magic;
   35         uint32_t        size;
   36 };
   37 
   38 #define L_FPSIMD_MAGIC  0x46508001
   39 #define L_ESR_MAGIC     0x45535201
   40 
   41 struct l_fpsimd_context {
   42         struct _l_aarch64_ctx head;
   43         uint32_t        fpsr;
   44         uint32_t        fpcr;
   45         __uint128_t     vregs[32];
   46 };
   47 
   48 struct l_esr_context {
   49         struct _l_aarch64_ctx head;
   50         uint64_t        esr;
   51 };
   52 
   53 struct l_sigcontext {
   54         uint64_t        fault_address;
   55         uint64_t        regs[31];
   56         uint64_t        sp;
   57         uint64_t        pc;
   58         uint64_t        pstate;
   59         uint8_t         __reserved[4096] __attribute__((__aligned__(16)));
   60 };
   61 
   62 struct l_ucontext {
   63         unsigned long   uc_flags;
   64         struct l_ucontext *uc_link;
   65         l_stack_t       uc_stack;
   66         l_sigset_t      uc_sigmask;
   67         uint8_t         __glibc_hole[1024 / 8 - sizeof(l_sigset_t)];
   68         struct l_sigcontext uc_sc;
   69 };
   70 
   71 struct l_rt_sigframe {
   72         l_siginfo_t     sf_si;
   73         struct l_ucontext sf_uc;
   74 } __attribute__((__aligned__(16)));
   75 
   76 struct l_sigframe {
   77         struct l_rt_sigframe sf;
   78         /* frame_record */
   79         uint64_t        fp;
   80         uint64_t        lr;
   81         ucontext_t      uc;
   82 };
   83 
   84 #define LINUX_MINSIGSTKSZ       roundup(sizeof(struct l_sigframe), 16)
   85 
   86 #endif /* _ARM64_LINUX_SIGFRAME_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/arm64/linux/linux_sigframe.h

FreeBSD/Linux Kernel Cross Reference
sys/arm64/linux/linux_sigframe.h