bfd/elf-linux-core.h

   1 /* Definitions for PRPSINFO structures under ELF on GNU/Linux.
   2    Copyright (C) 2013-2017 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_CORE_H
  22 #define ELF_LINUX_CORE_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 function to copy an elf_internal_linux_prpsinfo in host
  53    endian to an elf_external_linux_prpsinfo32 in target endian.  */
  54
  55 static inline void
  56 swap_linux_prpsinfo32_out (bfd *obfd,
  57                            const struct elf_internal_linux_prpsinfo *from,
  58                            struct elf_external_linux_prpsinfo32 *to)
  59 {
  60   bfd_put_8 (obfd, from->pr_state, &to->pr_state);
  61   bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
  62   bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
  63   bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
  64   bfd_put_32 (obfd, from->pr_flag, to->pr_flag);
  65   bfd_put_16 (obfd, from->pr_uid, to->pr_uid);
  66   bfd_put_16 (obfd, from->pr_gid, to->pr_gid);
  67   bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
  68   bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
  69   bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
  70   bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
  71   strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
  72   strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
  73 }
  74
  75 /* External 64-bit structure for PRPSINFO.  This structure is
  76    ABI-defined, thus we choose to use char arrays here in order to
  77    avoid dealing with different types in different architectures.
  78
  79    This structure will ultimately be written in the corefile's note
  80    section, as the PRPSINFO.  */
  81
  82 struct elf_external_linux_prpsinfo64
  83   {
  84     char pr_state;                      /* Numeric process state.  */
  85     char pr_sname;                      /* Char for pr_state.  */
  86     char pr_zomb;                       /* Zombie.  */
  87     char pr_nice;                       /* Nice val.  */
  88     char pr_flag[8];                    /* Flags.  */
  89     char gap[4];
  90     char pr_uid[4];
  91     char pr_gid[4];
  92     char pr_pid[4];
  93     char pr_ppid[4];
  94     char pr_pgrp[4];
  95     char pr_sid[4];
  96     char pr_fname[16];                  /* Filename of executable.  */
  97     char pr_psargs[80];                 /* Initial part of arg list.  */
  98   };
  99
 100 /* Helper function to copy an elf_internal_linux_prpsinfo in host
 101    endian to an elf_external_linux_prpsinfo64 in target endian.  */
 102
 103 static inline void
 104 swap_linux_prpsinfo64_out (bfd *obfd,
 105                            const struct elf_internal_linux_prpsinfo *from,
 106                            struct elf_external_linux_prpsinfo64 *to)
 107 {
 108   bfd_put_8 (obfd, from->pr_state, &to->pr_state);
 109   bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
 110   bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
 111   bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
 112   bfd_put_64 (obfd, from->pr_flag, to->pr_flag);
 113   bfd_put_32 (obfd, from->pr_uid, to->pr_uid);
 114   bfd_put_32 (obfd, from->pr_gid, to->pr_gid);
 115   bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
 116   bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
 117   bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
 118   bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
 119   strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
 120   strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
 121 }
 122
 123 #endif