/* BFD back-end definitions used by all NetBSD targets.

   Copyright (C) 1990-2026 Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

/* Check for our machine type (part of magic number).  */

#ifndef MACHTYPE_OK

#define MACHTYPE_OK(m) ((m) == DEFAULT_MID || (m) == M_UNKNOWN)

#endif

/* This is the normal load address for executables.  */

#define TEXT_START_ADDR   TARGET_PAGE_SIZE

/* NetBSD ZMAGIC has its header in the text segment.  */

#define N_HEADER_IN_TEXT(x) 1

/* Determine if this is a shared library using the flags.  */

#define N_SHARED_LIB(x)   (N_DYNAMIC (x))

/* We have 6 bits of flags and 10 bits of machine ID.  */

#define N_MACHTYPE(execp) \

  ((enum machine_type) (((execp)->a_info >> 16) & 0x03ff))

#define N_FLAGS(execp) \

  (((execp)->a_info >> 26) & 0x3f)

#define N_SET_INFO(execp, magic, type, flags) \

  ((execp)->a_info = ((magic) & 0xffff) \

   | (((int) (type) & 0x3ff) << 16) \

   | (((flags) & 0x3f) << 24))

#define N_SET_MACHTYPE(execp, machtype) \

  ((execp)->a_info = \

   ((execp)->a_info & 0xfb00ffff) | ((((int) (machtype)) & 0x3ff) << 16))

#define N_SET_FLAGS(execp, flags) \

  ((execp)->a_info = \

   ((execp)->a_info & 0x03ffffff) | ((flags & 0x3fu) << 26))

#include "sysdep.h"

#include "bfd.h"

#include "libbfd.h"

#include "libaout.h"

/* On NetBSD, the magic number is always in ntohl's "network" (big-endian)

   format.  */

#define SWAP_MAGIC(ext) bfd_getb32 (ext)

/* On NetBSD, the entry point may be taken to be the start of the text

   section.  */

#define MY_entry_is_text_address 1

#define MY_write_object_contents MY (write_object_contents)

static bool MY (write_object_contents) (bfd *);

#define MY_text_includes_header 1

#include "aout-target.h"

/* Write an object file.

   Section contents have already been written.  We write the

   file header, symbols, and relocation.  */

static bool

MY (write_object_contents) (bfd *abfd)

{

  struct external_exec exec_bytes;

  struct internal_exec *execp = exec_hdr (abfd);

  /* We must make certain that the magic number has been set.  This

     will normally have been done by set_section_contents, but only if

     there actually are some section contents.  */

  if (! abfd->output_has_begun)

    NAME (aout, adjust_sizes_and_vmas) (abfd);

  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;

  /* Magic number, maestro, please!  */

  switch (bfd_get_arch(abfd))

    {

    case DEFAULT_ARCH:

      N_SET_MACHTYPE (execp, DEFAULT_MID);

      break;

    default:

      N_SET_MACHTYPE (execp, M_UNKNOWN);

      break;

    }

  /* The NetBSD magic number is always big-endian.  */

#ifndef TARGET_IS_BIG_ENDIAN_P

  /* XXX aren't there any macro to change byteorder of a word independent of

     the host's or target's endiannesses?  */

  execp->a_info

    = (execp->a_info & 0xffu) << 24 | (execp->a_info & 0xff00) << 8

      | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24;

#endif

  WRITE_HEADERS (abfd, execp);

  return true;

}

ns32knetbsd.c:ns32k_aout_pc532nbsd_write_object_contents

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79

54

{

80

54

  struct external_exec exec_bytes;

81

54

  struct internal_exec *execp = exec_hdr (abfd);

82

83

  /* We must make certain that the magic number has been set.  This

84

     will normally have been done by set_section_contents, but only if

85

     there actually are some section contents.  */

86

54

  if (! abfd->output_has_begun)

87

35

    NAME (aout, adjust_sizes_and_vmas) (abfd);

88

89

54

  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;

90

91

  /* Magic number, maestro, please!  */

92

54

  switch (bfd_get_arch(abfd))

93

54

    {

94

54

    case DEFAULT_ARCH:

95

54

      N_SET_MACHTYPE (execp, DEFAULT_MID);

96

54

      break;

97

0

    default:

98

0

      N_SET_MACHTYPE (execp, M_UNKNOWN);

99

0

      break;

100

54

    }

101

102

  /* The NetBSD magic number is always big-endian.  */

103

54

#ifndef TARGET_IS_BIG_ENDIAN_P

104

  /* XXX aren't there any macro to change byteorder of a word independent of

105

     the host's or target's endiannesses?  */

106

54

  execp->a_info

107

54

    = (execp->a_info & 0xffu) << 24 | (execp->a_info & 0xff00) << 8

108

54

      | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24;

109

54

#endif

110

111

302

  WRITE_HEADERS (abfd, execp);

112

113

  return true;

114

302

}

vax1knetbsd.c:vax_aout_1knbsd_write_object_contents

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79

28

{

80

28

  struct external_exec exec_bytes;

81

28

  struct internal_exec *execp = exec_hdr (abfd);

82

83

  /* We must make certain that the magic number has been set.  This

84

     will normally have been done by set_section_contents, but only if

85

     there actually are some section contents.  */

86

28

  if (! abfd->output_has_begun)

87

19

    NAME (aout, adjust_sizes_and_vmas) (abfd);

88

89

28

  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;

90

91

  /* Magic number, maestro, please!  */

92

28

  switch (bfd_get_arch(abfd))

93

28

    {

94

28

    case DEFAULT_ARCH:

95

28

      N_SET_MACHTYPE (execp, DEFAULT_MID);

96

28

      break;

97

0

    default:

98

0

      N_SET_MACHTYPE (execp, M_UNKNOWN);

99

0

      break;

100

28

    }

101

102

  /* The NetBSD magic number is always big-endian.  */

103

28

#ifndef TARGET_IS_BIG_ENDIAN_P

104

  /* XXX aren't there any macro to change byteorder of a word independent of

105

     the host's or target's endiannesses?  */

106

28

  execp->a_info

107

28

    = (execp->a_info & 0xffu) << 24 | (execp->a_info & 0xff00) << 8

108

28

      | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24;

109

28

#endif

110

111

158

  WRITE_HEADERS (abfd, execp);

112

113

  return true;

114

158

}

vaxnetbsd.c:vax_aout_nbsd_write_object_contents

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Source

79

40

{

80

40

  struct external_exec exec_bytes;

81

40

  struct internal_exec *execp = exec_hdr (abfd);

82

83

  /* We must make certain that the magic number has been set.  This

84

     will normally have been done by set_section_contents, but only if

85

     there actually are some section contents.  */

86

40

  if (! abfd->output_has_begun)

87

28

    NAME (aout, adjust_sizes_and_vmas) (abfd);

88

89

40

  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;

90

91

  /* Magic number, maestro, please!  */

92

40

  switch (bfd_get_arch(abfd))

93

40

    {

94

40

    case DEFAULT_ARCH:

95

40

      N_SET_MACHTYPE (execp, DEFAULT_MID);

96

40

      break;

97

0

    default:

98

0

      N_SET_MACHTYPE (execp, M_UNKNOWN);

99

0

      break;

100

40

    }

101

102

  /* The NetBSD magic number is always big-endian.  */

103

40

#ifndef TARGET_IS_BIG_ENDIAN_P

104

  /* XXX aren't there any macro to change byteorder of a word independent of

105

     the host's or target's endiannesses?  */

106

40

  execp->a_info

107

40

    = (execp->a_info & 0xffu) << 24 | (execp->a_info & 0xff00) << 8

108

40

      | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24;

109

40

#endif

110

111

238

  WRITE_HEADERS (abfd, execp);

112

113

  return true;

114

238

}