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"