* targets.c (bfd_target): Remove unused align_power_min field.

	* bfd-in2.h: Rebuild.
	* All backends: Remove initialization of align_power_min.

1 files changed, 229 insertions, 29 deletions

diff --git a/bfd/binary.c b/bfd/binary.c
index a429889..1755d4a 100644
--- a/bfd/binary.c
+++ b/bfd/binary.c
@@ -16,7 +16,7 @@ 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.  */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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
@@ -31,14 +31,28 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
    the file.  objcopy cooperates by specially setting the start
    address to zero by default.  */
 
+#include <ctype.h>
+
 #include "bfd.h"
 #include "sysdep.h"
 #include "libbfd.h"
 
+/* Any bfd we create by reading a binary file has three symbols:
+   a start symbol, an end symbol, and an absolute length symbol.  */
+#define BIN_SYMS 3
+
 static boolean binary_mkobject PARAMS ((bfd *));
+static const bfd_target *binary_object_p PARAMS ((bfd *));
+static boolean binary_get_section_contents
+  PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
+static long binary_get_symtab_upper_bound PARAMS ((bfd *));
+static char *mangle_name PARAMS ((bfd *, char *));
+static long binary_get_symtab PARAMS ((bfd *, asymbol **));
 static asymbol *binary_make_empty_symbol PARAMS ((bfd *));
+static void binary_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
 static boolean binary_set_section_contents
   PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
+static int binary_sizeof_headers PARAMS ((bfd *, boolean));
 
 /* Create a binary object.  Invoked via bfd_set_format.  */
 
@@ -49,17 +63,157 @@ binary_mkobject (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
+/* Any file may be considered to be a binary file, provided the target
+   was not defaulted.  That is, it must be explicitly specified as
+   being binary.  */
+
+static const bfd_target *
+binary_object_p (abfd)
+     bfd *abfd;
+{
+  struct stat statbuf;
+  asection *sec;
+
+  if (abfd->target_defaulted)
+    {
+      bfd_set_error (bfd_error_wrong_format);
+      return NULL;
+    }
+
+  abfd->symcount = BIN_SYMS;
+
+  /* Find the file size.  */
+  if (bfd_stat (abfd, &statbuf) < 0)
+    {
+      bfd_set_error (bfd_error_system_call);
+      return NULL;
+    }
+
+  /* One data section.  */
+  sec = bfd_make_section (abfd, ".data");
+  if (sec == NULL)
+    return NULL;
+  sec->flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS;
+  sec->vma = 0;
+  sec->_raw_size = statbuf.st_size;
+  sec->filepos = 0;
+
+  abfd->tdata.any = (PTR) sec;
+
+  return abfd->xvec;
+}
+
+#define binary_close_and_cleanup _bfd_generic_close_and_cleanup
+#define binary_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
+#define binary_new_section_hook _bfd_generic_new_section_hook
+
+/* Get contents of the only section.  */
+
+static boolean
+binary_get_section_contents (abfd, section, location, offset, count)
+     bfd *abfd;
+     asection *section;
+     PTR location;
+     file_ptr offset;
+     bfd_size_type count;
+{
+  if (bfd_seek (abfd, offset, SEEK_SET) != 0
+      || bfd_read (location, 1, count, abfd) != count)
+    return false;
+  return true;
+}
+
+/* Return the amount of memory needed to read the symbol table.  */
+
+static long
+binary_get_symtab_upper_bound (abfd)
+     bfd *abfd;
+{
+  return (BIN_SYMS + 1) * sizeof (asymbol *);
+}
+
+/* Create a symbol name based on the bfd's filename.  */
+
+static char *
+mangle_name (abfd, suffix)
+     bfd *abfd;
+     char *suffix;
+{
+  int size;
+  char *buf;
+  char *p;
+
+  size = (strlen (bfd_get_filename (abfd))
+	  + strlen (suffix)
+	  + sizeof "_binary__");
+
+  buf = (char *) bfd_alloc (abfd, size);
+  if (buf == NULL)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return false;
+    }
+
+  sprintf (buf, "_binary_%s_%s", bfd_get_filename (abfd), suffix);
+
+  /* Change any non-alphanumeric characters to underscores.  */
+  for (p = buf; *p; p++)
+    if (! isalnum (*p))
+      *p = '_';
+
+  return buf;
+}
 
-/* We do have to provide a routine to make an empty symbol.  */
+/* Return the symbol table.  */
+
+static long
+binary_get_symtab (abfd, alocation)
+     bfd *abfd;
+     asymbol **alocation;
+{
+  asection *sec = (asection *) abfd->tdata.any;
+  asymbol *syms;
+  unsigned int i;
+
+  syms = (asymbol *) bfd_alloc (abfd, BIN_SYMS * sizeof (asymbol));
+  if (syms == NULL)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return false;
+    }
+
+  /* Start symbol.  */
+  syms[0].the_bfd = abfd;
+  syms[0].name = mangle_name (abfd, "start");
+  syms[0].value = 0;
+  syms[0].flags = BSF_GLOBAL;
+  syms[0].section = sec;
+  syms[0].udata.p = NULL;
+
+  /* End symbol.  */
+  syms[1].the_bfd = abfd;
+  syms[1].name = mangle_name (abfd, "end");
+  syms[1].value = sec->_raw_size;
+  syms[1].flags = BSF_GLOBAL;
+  syms[1].section = sec;
+  syms[1].udata.p = NULL;
+
+  /* Size symbol.  */
+  syms[2].the_bfd = abfd;
+  syms[2].name = mangle_name (abfd, "size");
+  syms[2].value = sec->_raw_size;
+  syms[2].flags = BSF_GLOBAL;
+  syms[2].section = bfd_abs_section_ptr;
+  syms[2].udata.p = NULL;
+
+  for (i = 0; i < BIN_SYMS; i++)
+    *alocation++ = syms++;
+  *alocation = NULL;
+
+  return BIN_SYMS;
+}
+
+/* Make an empty symbol.  */
 
 static asymbol *
 binary_make_empty_symbol (abfd)
@@ -73,6 +227,32 @@ binary_make_empty_symbol (abfd)
   return ret;
 }
 
+#define binary_print_symbol _bfd_nosymbols_print_symbol
+
+/* Get information about a symbol.  */
+
+static void
+binary_get_symbol_info (ignore_abfd, symbol, ret)
+     bfd *ignore_abfd;
+     asymbol *symbol;
+     symbol_info *ret;
+{
+  bfd_symbol_info (symbol, ret);
+}
+
+#define binary_bfd_is_local_label bfd_generic_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
+#define binary_read_minisymbols _bfd_generic_read_minisymbols
+#define binary_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
+
+#define binary_get_reloc_upper_bound \
+  ((long (*) PARAMS ((bfd *, asection *))) bfd_0l)
+#define binary_canonicalize_reloc \
+  ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l)
+#define binary_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
+
 /* Set the architecture of a binary file.  */
 #define binary_set_arch_mach _bfd_generic_set_arch_mach
 
@@ -86,25 +266,46 @@ binary_set_section_contents (abfd, sec, data, offset, size)
      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)
+  if (! abfd->output_has_begun)
     {
-      file_ptr adjust;
-
-      adjust = - (sec->filepos + offset);
-      if (size <= adjust)
-	return true;
-      size -= adjust;
-      data = (PTR) ((bfd_byte *) data + adjust);
-      offset += adjust;
+      bfd_vma low;
+      asection *s;
+
+      /* The lowest section VMA sets the virtual address of the start
+         of the file.  We use the set the file position of all the
+         sections.  */
+      low = abfd->sections->vma;
+      for (s = abfd->sections->next; s != NULL; s = s->next)
+	if (s->vma < low)
+	  low = s->vma;
+
+      for (s = abfd->sections; s != NULL; s = s->next)
+	s->filepos = s->vma - low;
+
+      abfd->output_has_begun = true;
     }
 
   return _bfd_generic_set_section_contents (abfd, sec, data, offset, size);
 }
 
+/* No space is required for header information.  */
+
+static int
+binary_sizeof_headers (abfd, exec)
+     bfd *abfd;
+     boolean exec;
+{
+  return 0;
+}
+
+#define binary_bfd_get_relocated_section_contents \
+  bfd_generic_get_relocated_section_contents
+#define binary_bfd_relax_section bfd_generic_relax_section
+#define binary_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#define binary_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define binary_bfd_final_link _bfd_generic_final_link
+#define binary_bfd_link_split_section _bfd_generic_link_split_section
+
 const bfd_target binary_vec =
 {
   "binary",			/* name */
@@ -117,7 +318,6 @@ const bfd_target binary_vec =
   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 */
@@ -126,7 +326,7 @@ const bfd_target binary_vec =
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* hdrs */
   {				/* bfd_check_format */
     _bfd_dummy_target,
-    _bfd_dummy_target,
+    binary_object_p,		/* bfd_check_format */
     _bfd_dummy_target,
     _bfd_dummy_target,
   },
@@ -143,14 +343,14 @@ const bfd_target binary_vec =
     bfd_false,
   },
 
-  BFD_JUMP_TABLE_GENERIC (_bfd_generic),
+  BFD_JUMP_TABLE_GENERIC (binary),
   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_RELOCS (binary),
   BFD_JUMP_TABLE_WRITE (binary),
-  BFD_JUMP_TABLE_LINK (_bfd_nolink),
+  BFD_JUMP_TABLE_LINK (binary),
   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 
   NULL