* binary.c: New file for raw binary output format.

	* Makefile.in (BFD_LIBS): Add binary.o.
	(CFILES): Add binary.c.
	* targets.c (binary_vec): Declare.
	(bfd_target_vector): Include binary_vec.

1 files changed, 157 insertions, 0 deletions

diff --git a/bfd/binary.c b/bfd/binary.c
new file mode 100644
index 0000000..a429889
--- /dev/null
+++ b/bfd/binary.c
@@ -0,0 +1,157 @@
+/* BFD back-end for binary objects.
+   Copyright 1994 Free Software Foundation, Inc.
+   Written by Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>
+
+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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* This is a BFD backend which may be used to write binary objects.
+   It may only be used for output, not input.  The intention is that
+   this may be used as an output format for objcopy in order to
+   generate raw binary data.
+
+   This is very simple.  The only complication is that the real data
+   will start at some address X, and in some cases we will not want to
+   include X zeroes just to get to that point.  Since the start
+   address is not meaningful for this object file format, we use it
+   instead to indicate the number of zeroes to skip at the start of
+   the file.  objcopy cooperates by specially setting the start
+   address to zero by default.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+static boolean binary_mkobject PARAMS ((bfd *));
+static asymbol *binary_make_empty_symbol PARAMS ((bfd *));
+static boolean binary_set_section_contents
+  PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
+
+/* Create a binary object.  Invoked via bfd_set_format.  */
+
+static boolean
+binary_mkobject (abfd)
+     bfd *abfd;
+{
+  return true;
+}
+
+/* Most of the symbol routines can just return an error.  */
+#define binary_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
+#define binary_get_symtab _bfd_nosymbols_get_symtab
+#define binary_print_symbol _bfd_nosymbols_print_symbol
+#define binary_get_symbol_info _bfd_nosymbols_get_symbol_info
+#define binary_bfd_is_local_label _bfd_nosymbols_bfd_is_local_label
+#define binary_get_lineno _bfd_nosymbols_get_lineno
+#define binary_find_nearest_line _bfd_nosymbols_find_nearest_line
+#define binary_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
+
+/* We do have to provide a routine to make an empty symbol.  */
+
+static asymbol *
+binary_make_empty_symbol (abfd)
+     bfd *abfd;
+{
+  asymbol *ret;
+
+  ret = (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
+  if (ret == NULL)
+    bfd_set_error (bfd_error_no_memory);
+  return ret;
+}
+
+/* Set the architecture of a binary file.  */
+#define binary_set_arch_mach _bfd_generic_set_arch_mach
+
+/* Write section contents of a binary file.  */
+
+static boolean
+binary_set_section_contents (abfd, sec, data, offset, size)
+     bfd *abfd;
+     asection *sec;
+     PTR data;
+     file_ptr offset;
+     bfd_size_type size;
+{
+  /* In a binary file, the file position of a section is just the VMA
+     minus the start address.  */
+  sec->filepos = bfd_section_vma (abfd, sec) - bfd_get_start_address (abfd);
+
+  if (sec->filepos + offset < 0)
+    {
+      file_ptr adjust;
+
+      adjust = - (sec->filepos + offset);
+      if (size <= adjust)
+	return true;
+      size -= adjust;
+      data = (PTR) ((bfd_byte *) data + adjust);
+      offset += adjust;
+    }
+
+  return _bfd_generic_set_section_contents (abfd, sec, data, offset, size);
+}
+
+const bfd_target binary_vec =
+{
+  "binary",			/* name */
+  bfd_target_unknown_flavour,	/* flavour */
+  true,				/* byteorder_big_p */
+  true,				/* header_byteorder_big_p */
+  EXEC_P,			/* object_flags */
+  (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
+   | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
+  0,				/* symbol_leading_char */
+  ' ',				/* ar_pad_char */
+  16,				/* ar_max_namelen */
+  1,				/* align_power_min */
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* data */
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* hdrs */
+  {				/* bfd_check_format */
+    _bfd_dummy_target,
+    _bfd_dummy_target,
+    _bfd_dummy_target,
+    _bfd_dummy_target,
+  },
+  {				/* bfd_set_format */
+    bfd_false,
+    binary_mkobject,
+    bfd_false,
+    bfd_false,
+  },
+  {				/* bfd_write_contents */
+    bfd_false,
+    bfd_true,
+    bfd_false,
+    bfd_false,
+  },
+
+  BFD_JUMP_TABLE_GENERIC (_bfd_generic),
+  BFD_JUMP_TABLE_COPY (_bfd_generic),
+  BFD_JUMP_TABLE_CORE (_bfd_nocore),
+  BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
+  BFD_JUMP_TABLE_SYMBOLS (binary),
+  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
+  BFD_JUMP_TABLE_WRITE (binary),
+  BFD_JUMP_TABLE_LINK (_bfd_nolink),
+  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+  NULL
+};