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/sys/procfs.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1998 John D. Polstra.
    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  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/12.0/sys/sys/procfs.h 326256 2017-11-27 15:01:59Z pfg $
   29  */
   30 
   31 #ifndef _SYS_PROCFS_H_
   32 #define _SYS_PROCFS_H_
   33 
   34 #include <sys/param.h>
   35 #include <machine/reg.h>
   36 
   37 typedef struct reg gregset_t;
   38 typedef struct fpreg fpregset_t;
   39 
   40 /*
   41  * These structures define an interface between core files and the debugger.
   42  * Never change or delete any elements.  If you add elements, add them to
   43  * the end of the structure, and increment the value of its version field.
   44  * This will help to ensure that today's core dump will still be usable
   45  * with next year's debugger.
   46  *
   47  * A lot more things should be added to these structures.  At present,
   48  * they contain the absolute bare minimum required to allow GDB to work
   49  * with ELF core dumps.
   50  */
   51 
   52 /*
   53  * The parenthsized numbers like (1) indicate the minimum version number
   54  * for which each element exists in the structure.  The version number is
   55  * not bumped when adding new fields to the end, only if the meaning of
   56  * an existing field changes.  Additional fields are annotated as (1a),
   57  * (1b), etc. to indicate the groupings of additions.
   58  */
   59 
   60 #define PRSTATUS_VERSION        1       /* Current version of prstatus_t */
   61 
   62 typedef struct prstatus {
   63     int         pr_version;     /* Version number of struct (1) */
   64     size_t      pr_statussz;    /* sizeof(prstatus_t) (1) */
   65     size_t      pr_gregsetsz;   /* sizeof(gregset_t) (1) */
   66     size_t      pr_fpregsetsz;  /* sizeof(fpregset_t) (1) */
   67     int         pr_osreldate;   /* Kernel version (1) */
   68     int         pr_cursig;      /* Current signal (1) */
   69     pid_t       pr_pid;         /* LWP (Thread) ID (1) */
   70     gregset_t   pr_reg;         /* General purpose registers (1) */
   71 } prstatus_t;
   72 
   73 typedef gregset_t prgregset_t[1];
   74 typedef fpregset_t prfpregset_t;
   75 
   76 #define PRFNAMESZ       16      /* Maximum command length saved */
   77 #define PRARGSZ         80      /* Maximum argument bytes saved */
   78 
   79 #define PRPSINFO_VERSION        1       /* Current version of prpsinfo_t */
   80 
   81 typedef struct prpsinfo {
   82     int         pr_version;     /* Version number of struct (1) */
   83     size_t      pr_psinfosz;    /* sizeof(prpsinfo_t) (1) */
   84     char        pr_fname[PRFNAMESZ+1];  /* Command name, null terminated (1) */
   85     char        pr_psargs[PRARGSZ+1];   /* Arguments, null terminated (1) */
   86     pid_t       pr_pid;         /* Process ID (1a) */
   87 } prpsinfo_t;
   88 
   89 typedef struct thrmisc {
   90     char        pr_tname[MAXCOMLEN+1];  /* Thread name, null terminated (1) */
   91     u_int       _pad;                   /* Convenience pad, 0-filled (1) */
   92 } thrmisc_t;
   93 
   94 typedef uint64_t psaddr_t;      /* An address in the target process. */
   95 
   96 #ifdef __HAVE_REG32
   97 typedef struct prstatus32 {
   98         int32_t pr_version;
   99         uint32_t pr_statussz;
  100         uint32_t pr_gregsetsz;
  101         uint32_t pr_fpregsetsz;
  102         int32_t pr_osreldate;
  103         int32_t pr_cursig;
  104         int32_t pr_pid;
  105         struct reg32 pr_reg;
  106 } prstatus32_t;
  107 
  108 typedef struct prpsinfo32 {
  109         int32_t pr_version;
  110         uint32_t pr_psinfosz;
  111         char    pr_fname[PRFNAMESZ+1];
  112         char    pr_psargs[PRARGSZ+1];
  113         int32_t pr_pid;
  114 } prpsinfo32_t;
  115 
  116 struct thrmisc32 {
  117         char    pr_tname[MAXCOMLEN+1];
  118         uint32_t _pad;
  119 };
  120 #endif /* __HAVE_REG32 */
  121 
  122 #endif /* _SYS_PROCFS_H_ */

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