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      1 /* Definitions for PRPSINFO structures under ELF on GNU/Linux.
      2    Copyright (C) 2013-2014 Free Software Foundation, Inc.
      3 
      4    This file is part of BFD, the Binary File Descriptor library.
      5 
      6    This program is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU General Public License as published by
      8    the Free Software Foundation; either version 3 of the License, or
      9    (at your option) any later version.
     10 
     11    This program is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14    GNU General Public License for more details.
     15 
     16    You should have received a copy of the GNU General Public License
     17    along with this program; if not, write to the Free Software
     18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     19    MA 02110-1301, USA.  */
     20 
     21 #ifndef ELF_LINUX_PSINFO_H
     22 #define ELF_LINUX_PSINFO_H
     23 
     24 /* The PRPSINFO structures defined below are used by most
     25    architectures, although some of them define their own versions
     26    (like e.g., PPC).  */
     27 
     28 /* External 32-bit structure for PRPSINFO.  This structure is
     29    ABI-defined, thus we choose to use char arrays here in order to
     30    avoid dealing with different types in different architectures.
     31 
     32    This structure will ultimately be written in the corefile's note
     33    section, as the PRPSINFO.  */
     34 
     35 struct elf_external_linux_prpsinfo32
     36   {
     37     char pr_state;			/* Numeric process state.  */
     38     char pr_sname;			/* Char for pr_state.  */
     39     char pr_zomb;			/* Zombie.  */
     40     char pr_nice;			/* Nice val.  */
     41     char pr_flag[4];			/* Flags.  */
     42     char pr_uid[2];
     43     char pr_gid[2];
     44     char pr_pid[4];
     45     char pr_ppid[4];
     46     char pr_pgrp[4];
     47     char pr_sid[4];
     48     char pr_fname[16];			/* Filename of executable.  */
     49     char pr_psargs[80];			/* Initial part of arg list.  */
     50   };
     51 
     52 /* Helper macro to swap (properly handling endianess) things from the
     53    `elf_internal_linux_prpsinfo' structure to the
     54    `elf_external_linux_prpsinfo32' structure.
     55 
     56    Note that FROM should be a pointer, and TO should be the explicit
     57    type.  */
     58 
     59 #define LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to)			\
     60   do									\
     61     {									\
     62       H_PUT_8 (abfd, from->pr_state, &to.pr_state);			\
     63       H_PUT_8 (abfd, from->pr_sname, &to.pr_sname);			\
     64       H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb);			\
     65       H_PUT_8 (abfd, from->pr_nice, &to.pr_nice);			\
     66       H_PUT_32 (abfd, from->pr_flag, to.pr_flag);			\
     67       H_PUT_16 (abfd, from->pr_uid, to.pr_uid);				\
     68       H_PUT_16 (abfd, from->pr_gid, to.pr_gid);				\
     69       H_PUT_32 (abfd, from->pr_pid, to.pr_pid);				\
     70       H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid);			\
     71       H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp);			\
     72       H_PUT_32 (abfd, from->pr_sid, to.pr_sid);				\
     73       strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname));	\
     74       strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs));	\
     75     } while (0)
     76 
     77 /* External 64-bit structure for PRPSINFO.  This structure is
     78    ABI-defined, thus we choose to use char arrays here in order to
     79    avoid dealing with different types in different architectures.
     80 
     81    This structure will ultimately be written in the corefile's note
     82    section, as the PRPSINFO.  */
     83 
     84 struct elf_external_linux_prpsinfo64
     85   {
     86     char pr_state;			/* Numeric process state.  */
     87     char pr_sname;			/* Char for pr_state.  */
     88     char pr_zomb;			/* Zombie.  */
     89     char pr_nice;			/* Nice val.  */
     90     char pr_flag[8];			/* Flags.  */
     91     char gap[4];
     92     char pr_uid[4];
     93     char pr_gid[4];
     94     char pr_pid[4];
     95     char pr_ppid[4];
     96     char pr_pgrp[4];
     97     char pr_sid[4];
     98     char pr_fname[16];			/* Filename of executable.  */
     99     char pr_psargs[80];			/* Initial part of arg list.  */
    100   };
    101 
    102 /* Helper macro to swap (properly handling endianess) things from the
    103    `elf_internal_linux_prpsinfo' structure to the
    104    `elf_external_linux_prpsinfo64' structure.
    105 
    106    Note that FROM should be a pointer, and TO should be the explicit
    107    type.  */
    108 
    109 #define LINUX_PRPSINFO64_SWAP_FIELDS(abfd, from, to)			\
    110   do									\
    111     {									\
    112       H_PUT_8 (abfd, from->pr_state, &to.pr_state);			\
    113       H_PUT_8 (abfd, from->pr_sname, &to.pr_sname);			\
    114       H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb);			\
    115       H_PUT_8 (abfd, from->pr_nice, &to.pr_nice);			\
    116       H_PUT_64 (abfd, from->pr_flag, to.pr_flag);			\
    117       H_PUT_32 (abfd, from->pr_uid, to.pr_uid);				\
    118       H_PUT_32 (abfd, from->pr_gid, to.pr_gid);				\
    119       H_PUT_32 (abfd, from->pr_pid, to.pr_pid);				\
    120       H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid);			\
    121       H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp);			\
    122       H_PUT_32 (abfd, from->pr_sid, to.pr_sid);				\
    123       strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname));	\
    124       strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs));	\
    125     } while (0)
    126 
    127 #endif
    128