The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * SPDX-License-Identifier: BSD-4-Clause
    3  *
    4  * Copyright (c) 1991 Regents of the University of California.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by the University of
   18  *      California, Berkeley and its contributors.
   19  * 4. Neither the name of the University nor the names of its contributors
   20  *    may be used to endorse or promote products derived from this software
   21  *    without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   33  * SUCH DAMAGE.
   34  *
   35  *      from: @(#)proc.h        7.1 (Berkeley) 5/15/91
   36  *      from: FreeBSD: src/sys/i386/include/proc.h,v 1.11 2001/06/29
   37  * $FreeBSD$
   38  */
   39 
   40 #ifndef _MACHINE_PROC_H_
   41 #define _MACHINE_PROC_H_
   42 
   43 struct mdthread {
   44         int     md_spinlock_count;      /* (k) */
   45         register_t md_saved_cspr;       /* (k) */
   46         register_t md_spurflt_addr;     /* (k) Spurious page fault address. */
   47         int md_ptrace_instr;
   48         int md_ptrace_addr;
   49         int md_ptrace_instr_alt;
   50         int md_ptrace_addr_alt;
   51 };
   52 
   53 struct mdproc {
   54         long    md_dummy;
   55 };
   56 
   57 #define KINFO_PROC_SIZE 816
   58 
   59 #define MAXARGS 8
   60 /*
   61  * This holds the syscall state for a single system call.
   62  * As some syscall arguments may be 64-bit aligned we need to ensure the
   63  * args value is 64-bit aligned. The ABI will then ensure any 64-bit
   64  * arguments are already correctly aligned, even if they were passed in
   65  * via registers, we just need to make sure we copy them to an aligned
   66  * buffer.
   67  */
   68 struct syscall_args {
   69         u_int code;
   70         struct sysent *callp;
   71         register_t args[MAXARGS];
   72 } __aligned(8);
   73 
   74 #ifdef _KERNEL
   75 #include <machine/pcb.h>
   76 
   77 /* Get the current kernel thread stack usage. */
   78 #define GET_STACK_USAGE(total, used) do {                               \
   79         struct thread *td = curthread;                                  \
   80         (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
   81         (used) = td->td_kstack + (total) - (vm_offset_t)&td;            \
   82 } while (0)
   83 
   84 #endif  /* _KERNEL */
   85 #endif /* !_MACHINE_PROC_H_ */

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