avr/objdump: Support dumping .avr.prop section.

Add support to objdump for dumping the .avr.prop section in a structured
way.

binutils/ChangeLog:

	* od-elf32_avr.c: Add elf32-avr.h include.
	(OPT_AVRPROP): Define.
	(options[]): Add 'avr-prop' entry.
	(elf32_avr_help): Add avr-prop help text.
	(elf32_avr_dump_avr_prop): New function.
	(elf32_avr_dump): Add check for avr-prop.

bfd/ChangeLog:

	* elf32-avr.h (struct avr_property_header): New strucure.
	(avr_elf32_load_property_records): Declare.
	(avr_elf32_property_record_name): Declare.
	* elf32-avr.c: Add bfd_stdint.h include.
	(retrieve_local_syms): New function.
	(get_elf_r_symndx_section): New function.
	(get_elf_r_symndx_offset): New function.
	(internal_reloc_compare): New function.
	(struct avr_find_section_data): New structure.
	(avr_is_section_for_address): New function.
	(avr_find_section_for_address): New function.
	(avr_elf32_load_records_from_section): New function.
	(avr_elf32_load_property_records): New function.
	(avr_elf32_property_record_name): New function.

gas/testsuite/ChangeLog:

	* gas/avr/avr-prop-1.d: New file.
	* gas/avr/avr-prop-1.s: New file.

1 files changed, 32 insertions, 0 deletions

diff --git a/bfd/elf32-avr.h b/bfd/elf32-avr.h
index 688b706..0ddb562 100644
--- a/bfd/elf32-avr.h
+++ b/bfd/elf32-avr.h
@@ -88,3 +88,35 @@ struct avr_property_record
     } align;
   } data;
 };
+
+struct avr_property_record_list
+{
+  /* The version number tells us the structure of the property record data
+     within the section.  See AVR_PROPERTY_RECORDS_VERSION.  */
+  bfd_byte version;
+
+  /* The flags field is currently unused.  This should be set to 0.  */
+  bfd_byte flags;
+
+  /* The number of property records.  This is stored as a 2-byte value in
+     the section contents.  */
+  unsigned long record_count;
+
+  /* The section from which the property records were loaded.  This is the
+     actual section containing the records, not the section(s) to which the
+     records apply.  */
+  asection *section;
+
+  /* The actual property records.  */
+  struct avr_property_record *records;
+};
+
+/* Load the property records from ABFD, return NULL if there are non
+   found, otherwise return pointer to dynamically allocated memory.  The
+   memory for the header and all of the records are allocated in a single
+   block, as such only the header needs to be freed.  */
+
+extern struct avr_property_record_list *avr_elf32_load_property_records (bfd *abfd);
+
+/* Return a string that is the name of the property record pointed to by REC.  */
+extern const char *avr_elf32_property_record_name (struct avr_property_record *rec);