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
35struct 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
55static inline void
56swap_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
82struct 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
103static inline void
104swap_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
124