revised elf support

1 files changed, 212 insertions, 0 deletions

diff --git a/bfd/elf32-target.h b/bfd/elf32-target.h
new file mode 100644
index 0000000..60d386c
--- /dev/null
+++ b/bfd/elf32-target.h
@@ -0,0 +1,212 @@
+/* Target definitions for 32-bit ELF
+   Copyright 1993 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 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 structure contains everything that BFD knows about a target.
+   It includes things like its byte order, name, what routines to call
+   to do various operations, etc.  Every BFD points to a target structure
+   with its "xvec" member.
+
+   There are two such structures here:  one for big-endian machines and
+   one for little-endian machines.   */
+
+/* Archives are generic or unimplemented.  */
+#define elf_slurp_armap			bfd_slurp_coff_armap
+#define elf_slurp_extended_name_table	_bfd_slurp_extended_name_table
+#define elf_truncate_arname		bfd_dont_truncate_arname
+#define elf_openr_next_archived_file	bfd_generic_openr_next_archived_file
+#define elf_generic_stat_arch_elt	bfd_generic_stat_arch_elt
+#define	elf_write_armap			coff_write_armap
+
+/* Ordinary section reading and writing */
+#define elf_new_section_hook		_bfd_dummy_new_section_hook
+#define elf_get_section_contents	bfd_generic_get_section_contents
+/* #define elf_set_section_contents	bfd_generic_set_section_contents */
+#define	elf_close_and_cleanup		bfd_generic_close_and_cleanup
+
+#define elf_bfd_debug_info_start	bfd_void
+#define elf_bfd_debug_info_end		bfd_void
+#define elf_bfd_debug_info_accumulate	(PROTO(void,(*),(bfd*, struct sec *))) bfd_void
+#define elf_bfd_get_relocated_section_contents \
+ bfd_generic_get_relocated_section_contents
+#define elf_bfd_relax_section bfd_generic_relax_section
+#define elf_bfd_seclet_link bfd_generic_seclet_link
+#define elf_bfd_make_debug_symbol \
+  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
+
+static CONST struct elf_backend_data elf_bed =
+{
+  elf_info_to_howto,
+  ELF_ARCH,
+};
+
+#ifdef TARGET_BIG_SYM
+bfd_target TARGET_BIG_SYM =
+{
+  /* name: identify kind of target */
+  TARGET_BIG_NAME,
+
+  /* flavour: general indication about file */
+  bfd_target_elf_flavour,
+
+  /* byteorder_big_p: data is big endian */
+  true,
+
+  /* header_byteorder_big_p: header is also big endian */
+  true,
+
+  /* object_flags: mask of all file flags */
+  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
+   DYNAMIC | WP_TEXT),
+  
+  /* section_flags: mask of all section flags */
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
+   SEC_CODE | SEC_DATA), 
+
+   /* leading_symbol_char: is the first char of a user symbol
+      predictable, and if so what is it */
+   0,
+
+  /* ar_pad_char: pad character for filenames within an archive header
+     FIXME:  this really has nothing to do with ELF, this is a characteristic
+     of the archiver and/or os and should be independently tunable */
+  '/',
+
+  /* ar_max_namelen: maximum number of characters in an archive header
+     FIXME:  this really has nothing to do with ELF, this is a characteristic
+     of the archiver and should be independently tunable.  This value is
+     a WAG (wild a** guess) */
+  15,
+
+  /* align_power_min: minimum alignment restriction for any section
+     FIXME:  this value may be target machine dependent */
+  3,
+
+  /* Routines to byte-swap various sized integers from the data sections */
+  _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
+
+  /* Routines to byte-swap various sized integers from the file headers */
+  _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
+
+  /* bfd_check_format: check the format of a file being read */
+  { _bfd_dummy_target,		/* unknown format */
+    elf_object_p,		/* assembler/linker output (object file) */
+    bfd_generic_archive_p,	/* an archive */
+    elf_core_file_p		/* a core file */
+  },
+
+  /* bfd_set_format: set the format of a file being written */
+  { bfd_false,
+    elf_mkobject,
+    _bfd_generic_mkarchive,
+    bfd_false
+  },
+
+  /* bfd_write_contents: write cached information into a file being written */
+  { bfd_false,
+    elf_write_object_contents,
+    _bfd_write_archive_contents,
+    bfd_false
+  },
+
+  /* Initialize a jump table with the standard macro.  All names start with
+     "elf" */
+  JUMP_TABLE(elf),
+
+  /* backend_data: */
+  (PTR) &elf_bed,
+};
+#endif
+
+#ifdef TARGET_LITTLE_SYM
+bfd_target TARGET_LITTLE_SYM =
+{
+  /* name: identify kind of target */
+  TARGET_LITTLE_NAME,
+
+  /* flavour: general indication about file */
+  bfd_target_elf_flavour,
+
+  /* byteorder_big_p: data is big endian */
+  false,		/* Nope -- this one's little endian */
+
+  /* header_byteorder_big_p: header is also big endian */
+  false,		/* Nope -- this one's little endian */
+
+  /* object_flags: mask of all file flags */
+  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
+   DYNAMIC | WP_TEXT),
+  
+  /* section_flags: mask of all section flags */
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
+   SEC_DATA), 
+
+   /* leading_symbol_char: is the first char of a user symbol
+      predictable, and if so what is it */
+   0,
+
+  /* ar_pad_char: pad character for filenames within an archive header
+     FIXME:  this really has nothing to do with ELF, this is a characteristic
+     of the archiver and/or os and should be independently tunable */
+  '/',
+
+  /* ar_max_namelen: maximum number of characters in an archive header
+     FIXME:  this really has nothing to do with ELF, this is a characteristic
+     of the archiver and should be independently tunable.  This value is
+     a WAG (wild a** guess) */
+  15,
+
+  /* align_power_min: minimum alignment restriction for any section
+     FIXME:  this value may be target machine dependent */
+  3,
+
+  /* Routines to byte-swap various sized integers from the data sections */
+  _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
+
+  /* Routines to byte-swap various sized integers from the file headers */
+  _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
+
+  /* bfd_check_format: check the format of a file being read */
+  { _bfd_dummy_target,		/* unknown format */
+    elf_object_p,		/* assembler/linker output (object file) */
+    bfd_generic_archive_p,	/* an archive */
+    elf_core_file_p		/* a core file */
+  },
+
+  /* bfd_set_format: set the format of a file being written */
+  { bfd_false,
+    elf_mkobject,
+    _bfd_generic_mkarchive,
+    bfd_false
+  },
+
+  /* bfd_write_contents: write cached information into a file being written */
+  { bfd_false,
+    elf_write_object_contents,
+    _bfd_write_archive_contents,
+    bfd_false
+  },
+
+  /* Initialize a jump table with the standard macro.  All names start with
+     "elf" */
+  JUMP_TABLE(elf),
+
+  /* backend_data: */
+  (PTR) &elf_bed,
+};
+#endif