bfd/elf32-am33lin.c

   1 /* Matsushita AM33/2.0 support for 32-bit GNU/Linux ELF
   2    Copyright (C) 2003-2023 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 #include "sysdep.h"
  22 #include "bfd.h"
  23 #include "elf-bfd.h"
  24 #include "elf/mn10300.h"
  25
  26 #define elf_symbol_leading_char 0
  27
  28 #define TARGET_LITTLE_SYM       am33_elf32_linux_vec
  29 #define TARGET_LITTLE_NAME      "elf32-am33lin"
  30 #define ELF_ARCH                bfd_arch_mn10300
  31 #define ELF_MACHINE_CODE        EM_MN10300
  32 #define ELF_MACHINE_ALT1        EM_CYGNUS_MN10300
  33 #define ELF_MAXPAGESIZE         0x1000
  34
  35 /* Rename global functions.  */
  36 #define _bfd_mn10300_elf_merge_private_bfd_data  _bfd_am33_elf_merge_private_bfd_data
  37 #define _bfd_mn10300_elf_object_p                _bfd_am33_elf_object_p
  38 #define _bfd_mn10300_elf_final_write_processing  _bfd_am33_elf_final_write_processing
  39
  40 /* Support for core dump NOTE sections.  */
  41 static bool
  42 elf32_am33lin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
  43 {
  44   int offset;
  45   unsigned int size;
  46
  47   switch (note->descsz)
  48     {
  49       default:
  50         return false;
  51
  52       case 184:
  53       case 188:         /* Linux/am33 */
  54         /* pr_cursig */
  55         elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
  56
  57         /* pr_pid */
  58         elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
  59
  60         /* pr_reg */
  61         offset = 72;
  62         size = 112;
  63
  64         break;
  65     }
  66
  67   /* Make a ".reg/999" section.  */
  68   return _bfd_elfcore_make_pseudosection (abfd, ".reg", size,
  69                                           note->descpos + offset);
  70 }
  71
  72 static bool
  73 elf32_am33lin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
  74 {
  75   switch (note->descsz)
  76     {
  77       default:
  78         return false;
  79
  80       case 124:         /* Linux/am33 elf_prpsinfo */
  81         elf_tdata (abfd)->core->program
  82          = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
  83         elf_tdata (abfd)->core->command
  84          = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
  85     }
  86
  87   /* Note that for some reason, a spurious space is tacked
  88      onto the end of the args in some (at least one anyway)
  89      implementations, so strip it off if it exists.  */
  90
  91   {
  92     char *command = elf_tdata (abfd)->core->command;
  93     int n = strlen (command);
  94
  95     if (0 < n && command[n - 1] == ' ')
  96       command[n - 1] = '\0';
  97   }
  98
  99   return true;
 100 }
 101
 102 #define elf_backend_grok_prstatus       elf32_am33lin_grok_prstatus
 103 #define elf_backend_grok_psinfo         elf32_am33lin_grok_psinfo
 104
 105 #define elf_backend_linux_prpsinfo32_ugid16     true
 106
 107 #include "elf-m10300.c"