Don't always build coffgen.o

Removes a bunch of unused functions from libbfd when building ELF or
AOUT.  Split off the bits we need externally when not building a COFF
target into coff-bfd.c and coff-bfd.h.

bfd/
	* Makefile.am (BFD32_LIBS, BFD32_LIBS_CFILES): Remove dwarf2
	and coffgen.  Add coff-bfd.  Sort.
	(BFD32_BACKENDS, BFD32_BACKENDS_CFILES): Add coffgen and dwarf2.
	* bfd-in.h (bfd_coff_get_syment, bfd_coff_get_auxent): Delete.
	(struct coff_comdat_info, bfd_coff_get_comdat_section): Delete.
	* coffgen.c (coff_symbol_from): Move to coff-bfd.h as macro,
	without unused param.  Update uses.
	(bfd_coff_get_comdat_section): Move to coff-bfd.h as macro.
	(bfd_coff_get_syment, bfd_coff_get_auxent): Move to coff-bfd.c.
	* libcoff-in.h: #include "coff-bfd.h".
	(struct coff_section_tdata, coff_section_data): Move to coff-bfd.h.
	(coff_symbol_from): Delete.
	* coff-bfd.c: New file.
	* coff-bfd.h: New file.
	* coff-i386.c: Update coff_symbol_from occurrences.
	* coff-i960.c: Likewise.
	* coff-m68k.c: Likewise.
	* coff-sh.c: Likewise.
	* coff-x86_64.c: Likewise.
	* coffcode.h: Likewise.
	* pe-mips.c: Likewise.
	* configure.ac (elf): Add dwarf2.lo.
	(coffgen, coff, ecoff, xcoff): Define.  Use when mapping bfd
	target vectors to .o files.  Add dwarf2 for mach-o targets.
	Fix the sh target FIXME.
	* po/SRC-POTFILES.in: Regenerate.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* bfd-in2.h: Regenerate.
	* libcoff.h: Regenerate.
binutils/
	* objdump.c: #include "coff-bfd.h".
ld/
	* ldmisc.c: #include "coff-bfd.h"

1 files changed, 86 insertions, 0 deletions

diff --git a/bfd/coff-bfd.h b/bfd/coff-bfd.h
new file mode 100644
index 0000000..3e30ef3
--- /dev/null
+++ b/bfd/coff-bfd.h
@@ -0,0 +1,86 @@
+/* BFD COFF interfaces used outside of BFD.
+   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.  */
+
+/* This structure is used for a comdat section, as in PE.  A comdat
+   section is associated with a particular symbol.  When the linker
+   sees a comdat section, it keeps only one of the sections with a
+   given name and associated with a given symbol.  */
+
+struct coff_comdat_info
+{
+  /* The name of the symbol associated with a comdat section.  */
+  const char *name;
+
+  /* The local symbol table index of the symbol associated with a
+     comdat section.  This is only meaningful to the object file format
+     specific code; it is not an index into the list returned by
+     bfd_canonicalize_symtab.  */
+  long symbol;
+};
+
+/* The used_by_bfd field of a section may be set to a pointer to this
+   structure.  */
+
+struct coff_section_tdata
+{
+  /* The relocs, swapped into COFF internal form.  This may be NULL.  */
+  struct internal_reloc *relocs;
+  /* If this is TRUE, the relocs entry may not be freed.  */
+  bfd_boolean keep_relocs;
+  /* The section contents.  This may be NULL.  */
+  bfd_byte *contents;
+  /* If this is TRUE, the contents entry may not be freed.  */
+  bfd_boolean keep_contents;
+  /* Information cached by coff_find_nearest_line.  */
+  bfd_vma offset;
+  unsigned int i;
+  const char *function;
+  /* Optional information about a COMDAT entry; NULL if not COMDAT. */
+  struct coff_comdat_info *comdat;
+  int line_base;
+  /* A pointer used for .stab linking optimizations.  */
+  void * stab_info;
+  /* Available for individual backends.  */
+  void * tdata;
+};
+
+/* An accessor macro for the coff_section_tdata structure.  */
+#define coff_section_data(abfd, sec) \
+  ((struct coff_section_tdata *) (sec)->used_by_bfd)
+
+#define bfd_coff_get_comdat_section(abfd, sec)		\
+  ((bfd_get_flavour (abfd) == bfd_target_coff_flavour	\
+    && coff_section_data (abfd, sec) != NULL)		\
+   ? coff_section_data (abfd, sec)->comdat : NULL)
+
+#define coff_symbol_from(symbol)			\
+  ((bfd_family_coff (bfd_asymbol_bfd (symbol))		\
+    && bfd_asymbol_bfd (symbol)->tdata.coff_obj_data)	\
+   ? (coff_symbol_type *) (symbol) : NULL)
+
+struct internal_syment;
+union internal_auxent;
+
+extern bfd_boolean bfd_coff_get_syment
+  (bfd *, struct bfd_symbol *, struct internal_syment *);
+
+extern bfd_boolean bfd_coff_get_auxent
+  (bfd *, struct bfd_symbol *, int, union internal_auxent *);