proc.h

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    1 /*-
    2  * Copyright (c) 1991 Regents of the University of California.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      from: @(#)proc.h        7.1 (Berkeley) 5/15/91
   30  *      from: FreeBSD: src/sys/i386/include/proc.h,v 1.11 2001/06/29
   31  * $FreeBSD$
   32  */
   33 
   34 #ifndef _MACHINE_PROC_H_
   35 #define _MACHINE_PROC_H_
   36 
   37 struct ptrauth_key {
   38         uint64_t pa_key_lo;
   39         uint64_t pa_key_hi;
   40 };
   41 
   42 struct mdthread {
   43         int     md_spinlock_count;      /* (k) */
   44         register_t md_saved_daif;       /* (k) */
   45         uintptr_t md_canary;
   46 
   47         /*
   48          * The pointer authentication keys. These are shared within a process,
   49          * however this may change for some keys as the PAuth ABI Extension to
   50          * ELF for the Arm 64-bit Architecture [1] is currently (July 2021) at
   51          * an Alpha release quality so may change.
   52          *
   53          * [1] https://github.com/ARM-software/abi-aa/blob/main/pauthabielf64/pauthabielf64.rst
   54          */
   55         struct {
   56                 struct ptrauth_key apia;
   57                 struct ptrauth_key apib;
   58                 struct ptrauth_key apda;
   59                 struct ptrauth_key apdb;
   60                 struct ptrauth_key apga;
   61         } md_ptrauth_user;
   62 
   63         struct {
   64                 struct ptrauth_key apia;
   65         } md_ptrauth_kern;
   66 };
   67 
   68 struct mdproc {
   69         long    md_dummy;
   70 };
   71 
   72 #define KINFO_PROC_SIZE 1088
   73 #define KINFO_PROC32_SIZE 816
   74 
   75 #ifdef _KERNEL
   76 
   77 #include <machine/pcb.h>
   78 
   79 #define GET_STACK_USAGE(total, used) do {                               \
   80         struct thread *td = curthread;                                  \
   81         (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
   82         (used) = td->td_kstack + (total) - (vm_offset_t)&td;            \
   83 } while (0)
   84 
   85 #endif
   86 
   87 #endif /* !_MACHINE_PROC_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/arm64/include/proc.h

FreeBSD/Linux Kernel Cross Reference
sys/arm64/include/proc.h