Add support for ELF files which contain multiple reloc sections which all target the same section.

	* elf-bfd.h (struct elf_backend_data): Add new fields:
	init_secondary_reloc_section, slurp_secondary_reloc_section,
	write_secondary_reloc_section.
	(_bfd_elf_init_secondary_reloc_section): Prototype.
	(_bfd_elf_slurp_secondary_reloc_section): Prototype.
	(_bfd_elf_write_secondary_reloc_section): Prototype.
	* elf.c ( bfd_section_from_shdr): Invoke the new
	init_secondary_reloc_section backend function, if defined, when a
	second reloc section is encountered.
	(swap_out_syms): Invoke the new symbol_section_index function, if
	defined, when computing the section index of an OS/PROC specific
	symbol.
	(_bfd_elf_init_secondary_reloc_section): New function.
	(_bfd_elf_slurp_secondary_reloc_section): New function.
	(_bfd_elf_write_secondary_reloc_section): New function.
	(_bfd_elf_copy_special_section_fields): New function.
	* elfcode.h (elf_write_relocs): Invoke the new
	write_secondary_relocs function, if defined, in order to emit
	secondary relocs.
	(elf_slurp_reloc_table): Invoke the new slurp_secondary_relocs
	function, if defined, in order to read in secondary relocs.
	* elfxx-target.h (elf_backend_copy_special_section_fields):
	Provide a non-NULL default definition.
	(elf_backend_init_secondary_reloc_section): Likewise.
	(elf_backend_slurp_secondary_reloc_section): Likewise.
	(elf_backend_write_secondary_reloc_section): Likewise.
	(struct elf_backend_data elfNN_bed): Add initialisers for the new
	fields.
        * configure.ac (score_elf32_[bl]e_vec): Add elf64.lo
        * configure: Regenerate.

1 files changed, 23 insertions, 0 deletions

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 38a9aa0..5d9e0fe 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1509,6 +1509,16 @@ struct elf_backend_data
      emitted symbol.  If not defined, the value is left unchanged.  */
   unsigned int (*symbol_section_index) (bfd *, elf_symbol_type *);
   
+  /* Called when a section has extra reloc sections.  */
+  bfd_boolean (*init_secondary_reloc_section) (bfd *, Elf_Internal_Shdr *,
+					       const char *, unsigned int);
+
+  /* Called when after loading the normal relocs for a section.  */
+  bfd_boolean (*slurp_secondary_relocs) (bfd *, asection *, asymbol **);
+
+  /* Called after writing the normal relocs for a section.  */
+  bfd_boolean (*write_secondary_relocs) (bfd *, asection *);
+
   /* This is non-zero if static TLS segments require a special alignment.  */
   unsigned static_tls_alignment;
 
@@ -2838,6 +2848,19 @@ extern bfd_vma elf32_r_sym (bfd_vma);
 
 extern bfd_boolean is_debuginfo_file (bfd *);
 
+
+extern bfd_boolean _bfd_elf_init_secondary_reloc_section
+  (bfd *, Elf_Internal_Shdr *, const char *, unsigned int);
+extern bfd_boolean _bfd_elf_slurp_secondary_reloc_section
+  (bfd *, asection *, asymbol **);
+extern bfd_boolean _bfd_elf_copy_special_section_fields
+  (const bfd *, bfd *, const Elf_Internal_Shdr *, Elf_Internal_Shdr *);
+extern bfd_boolean _bfd_elf_write_secondary_reloc_section
+  (bfd *, asection *);
+extern unsigned int _bfd_elf_symbol_section_index
+  (bfd *, elf_symbol_type *);
+
+
 /* Large common section.  */
 extern asection _bfd_elf_large_com_section;