Imported from /home/lorry/working-area/delta_binutils-tarball/binutils-2.25.tar.bz2.HEADbinutils-2.25master

1 files changed, 224 insertions, 0 deletions

diff --git a/bfd/i386os9k.c b/bfd/i386os9k.c
new file mode 100644
index 0000000..d8d5408
--- /dev/null
+++ b/bfd/i386os9k.c
@@ -0,0 +1,224 @@
+/* BFD back-end for os9000 i386 binaries.
+   Copyright (C) 1990-2014 Free Software Foundation, Inc.
+   Written by Cygnus Support.
+
+   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.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+#include "libaout.h"		/* BFD a.out internal data structures */
+#include "os9k.h"
+
+/* Swaps the information in an executable header taken from a raw byte
+   stream memory image, into the internal exec_header structure.  */
+static bfd_boolean
+os9k_swap_exec_header_in (bfd *abfd,
+			  mh_com *raw_bytes,
+			  struct internal_exec *execp)
+{
+  mh_com *bytes = (mh_com *) raw_bytes;
+  unsigned int dload, dmemsize, dmemstart;
+
+  /* Now fill in fields in the execp, from the bytes in the raw data.  */
+  execp->a_info = H_GET_16 (abfd, bytes->m_sync);
+  execp->a_syms = 0;
+  execp->a_entry = H_GET_32 (abfd, bytes->m_exec);
+  execp->a_talign = 2;
+  execp->a_dalign = 2;
+  execp->a_balign = 2;
+
+  dload = H_GET_32 (abfd, bytes->m_idata);
+  execp->a_data = dload + 8;
+
+  if (bfd_seek (abfd, (file_ptr) dload, SEEK_SET) != 0
+      || (bfd_bread (&dmemstart, (bfd_size_type) sizeof (dmemstart), abfd)
+	  != sizeof (dmemstart))
+      || (bfd_bread (&dmemsize, (bfd_size_type) sizeof (dmemsize), abfd)
+	  != sizeof (dmemsize)))
+    return FALSE;
+
+  execp->a_tload = 0;
+  execp->a_dload = H_GET_32 (abfd, (unsigned char *) &dmemstart);
+  execp->a_text = dload - execp->a_tload;
+  execp->a_data = H_GET_32 (abfd, (unsigned char *) &dmemsize);
+  execp->a_bss = H_GET_32 (abfd, bytes->m_data) - execp->a_data;
+
+  execp->a_trsize = 0;
+  execp->a_drsize = 0;
+
+  return TRUE;
+}
+
+
+/* Finish up the opening of a b.out file for reading.  Fill in all the
+   fields that are not handled by common code.  */
+
+static const bfd_target *
+os9k_callback (bfd *abfd)
+{
+  struct internal_exec *execp = exec_hdr (abfd);
+  unsigned long bss_start;
+
+  /* Architecture and machine type.  */
+  bfd_set_arch_mach (abfd, bfd_arch_i386, 0);
+
+  /* The positions of the string table and symbol table.  */
+  obj_str_filepos (abfd) = 0;
+  obj_sym_filepos (abfd) = 0;
+
+  /* The alignments of the sections.  */
+  obj_textsec (abfd)->alignment_power = execp->a_talign;
+  obj_datasec (abfd)->alignment_power = execp->a_dalign;
+  obj_bsssec (abfd)->alignment_power = execp->a_balign;
+
+  /* The starting addresses of the sections.  */
+  obj_textsec (abfd)->vma = execp->a_tload;
+  obj_datasec (abfd)->vma = execp->a_dload;
+
+  /* And reload the sizes, since the aout module zaps them.  */
+  obj_textsec (abfd)->size = execp->a_text;
+
+  bss_start = execp->a_dload + execp->a_data;	/* BSS = end of data section.  */
+  obj_bsssec (abfd)->vma = align_power (bss_start, execp->a_balign);
+
+  /* The file positions of the sections.  */
+  obj_textsec (abfd)->filepos = execp->a_entry;
+  obj_datasec (abfd)->filepos = execp->a_dload;
+
+  /* The file positions of the relocation info ***
+  obj_textsec (abfd)->rel_filepos = N_TROFF(*execp);
+  obj_datasec (abfd)->rel_filepos =  N_DROFF(*execp);  */
+
+  adata (abfd).page_size = 1;	/* Not applicable.  */
+  adata (abfd).segment_size = 1;/* Not applicable.  */
+  adata (abfd).exec_bytes_size = MHCOM_BYTES_SIZE;
+
+  return abfd->xvec;
+}
+
+static const bfd_target *
+os9k_object_p (bfd *abfd)
+{
+  struct internal_exec anexec;
+  mh_com exec_bytes;
+
+  if (bfd_bread (&exec_bytes, (bfd_size_type) MHCOM_BYTES_SIZE, abfd)
+      != MHCOM_BYTES_SIZE)
+    {
+      if (bfd_get_error () != bfd_error_system_call)
+	bfd_set_error (bfd_error_wrong_format);
+      return 0;
+    }
+
+  anexec.a_info = H_GET_16 (abfd, exec_bytes.m_sync);
+  if (N_BADMAG (anexec))
+    {
+      bfd_set_error (bfd_error_wrong_format);
+      return 0;
+    }
+
+  if (! os9k_swap_exec_header_in (abfd, &exec_bytes, &anexec))
+    {
+      if (bfd_get_error () != bfd_error_system_call)
+	bfd_set_error (bfd_error_wrong_format);
+      return NULL;
+    }
+  return aout_32_some_aout_object_p (abfd, &anexec, os9k_callback);
+}
+
+static int
+os9k_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
+		     struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+  return sizeof (struct internal_exec);
+}
+
+
+
+#define aout_32_close_and_cleanup aout_32_bfd_free_cached_info
+
+#define aout_32_find_line	      _bfd_nosymbols_find_line
+#define aout_32_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
+
+#define aout_32_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
+#define aout_32_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
+
+#define aout_32_get_section_contents_in_window \
+  _bfd_generic_get_section_contents_in_window
+
+#define os9k_bfd_get_relocated_section_contents \
+  bfd_generic_get_relocated_section_contents
+#define os9k_bfd_relax_section bfd_generic_relax_section
+#define os9k_bfd_gc_sections bfd_generic_gc_sections
+#define os9k_bfd_lookup_section_flags bfd_generic_lookup_section_flags
+#define os9k_bfd_merge_sections bfd_generic_merge_sections
+#define os9k_bfd_is_group_section bfd_generic_is_group_section
+#define os9k_bfd_discard_group bfd_generic_discard_group
+#define os9k_section_already_linked \
+  _bfd_generic_section_already_linked
+#define os9k_bfd_define_common_symbol bfd_generic_define_common_symbol
+#define os9k_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#define os9k_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define os9k_bfd_link_just_syms _bfd_generic_link_just_syms
+#define os9k_bfd_copy_link_hash_symbol_type \
+  _bfd_generic_copy_link_hash_symbol_type
+#define os9k_bfd_final_link _bfd_generic_final_link
+#define os9k_bfd_link_split_section  _bfd_generic_link_split_section
+
+const bfd_target i386_aout_os9k_vec =
+  {
+    "i386os9k",			/* name */
+    bfd_target_os9k_flavour,
+    BFD_ENDIAN_LITTLE,		/* data byte order is little */
+    BFD_ENDIAN_LITTLE,		/* hdr byte order is little */
+    (HAS_RELOC | EXEC_P | WP_TEXT),	/* object flags */
+    (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD),	/* section flags */
+    0,				/* symbol leading char */
+    ' ',				/* ar_pad_char */
+    16,				/* ar_max_namelen */
+    0,				/* match priority.  */
+
+    bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+    bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* data */
+    bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+    bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* hdrs */
+    {_bfd_dummy_target, os9k_object_p,	/* bfd_check_format */
+     bfd_generic_archive_p, _bfd_dummy_target},
+    {bfd_false, bfd_false,	/* bfd_set_format */
+     _bfd_generic_mkarchive, bfd_false},
+    {bfd_false, bfd_false,	/* bfd_write_contents */
+     _bfd_write_archive_contents, bfd_false},
+
+    BFD_JUMP_TABLE_GENERIC (aout_32),
+    BFD_JUMP_TABLE_COPY (_bfd_generic),
+    BFD_JUMP_TABLE_CORE (_bfd_nocore),
+    BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
+    BFD_JUMP_TABLE_SYMBOLS (aout_32),
+    BFD_JUMP_TABLE_RELOCS (aout_32),
+    BFD_JUMP_TABLE_WRITE (aout_32),
+    BFD_JUMP_TABLE_LINK (os9k),
+    BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+    NULL,
+
+    NULL,
+  };