Fix PR18374 by making readelf and objdump ignore end-of-list markers in the .debug_loc section if there are relocations against them.

	PR binutils/18374
bin	* dwarf.h (struct dwarf_section): Add reloc_info and num_relocs
	fields.
	(struct dwarf_section_display): Change bitfield to boolean.
	(reloc_at): Add prototype.
	* dwarf.c (display_loc_list): Ignore list terminators if there are
	relocs against them.
	(display_debug_loc): Issue a warning if there are relocs against
	the .debug_loc section.
	(display_displays): Initialise reloc_info and num_relocs fields.
	* objdump.c (load_specific_debug_section): Initialise reloc_info
	and num_relocs fields.
	(reloc_at): New function.
	* readelf.c (is_32bit_abs_reloc): Add IA64's R_IA64_DIS32LSB
	reloc.
	(reloc_at): New function.
	(apply_relocations): Add relocs_return and num_relocs_return
	parameters.  Fill them in with the loaded relocs if non-NULL.
	(dump_section_as_bytes): Update call to apply_relocations.
	(load_specific_debug_section): Initialise reloc_info and
	num_relocs fields.

tests	* binutils-all/pr18374.s: New test file.
	* binutils-all/readelf.exp: Assemble and run the new test.
	* binutils-all/readelf.pr18374: Expected output from readelf.

1 files changed, 11 insertions, 1 deletions

diff --git a/binutils/dwarf.h b/binutils/dwarf.h
index 0e661d469f0..e679320fbbd 100644
--- a/binutils/dwarf.h
+++ b/binutils/dwarf.h
@@ -124,6 +124,11 @@ struct dwarf_section
   dwarf_vma address;
   dwarf_size_type size;
   enum dwarf_section_display_enum abbrev_sec;
+
+  /* Used by clients to help them implement the reloc_at callback.  */
+  void * reloc_info;
+  unsigned long num_relocs;
+
   /* A spare field for random use.  */
   void *user_data;
 };
@@ -135,7 +140,7 @@ struct dwarf_section_display
   struct dwarf_section section;
   int (*display) (struct dwarf_section *, void *);
   int *enabled;
-  unsigned int relocate : 1;
+  bfd_boolean relocate;
 };
 
 extern struct dwarf_section_display debug_displays [];
@@ -217,3 +222,8 @@ extern void * xcmalloc (size_t, size_t);
 extern void * xcrealloc (void *, size_t, size_t);
 
 extern dwarf_vma read_leb128 (unsigned char *, unsigned int *, bfd_boolean, const unsigned char * const);
+
+/* A callback into the client.  Retuns TRUE if there is a
+   relocation against the given debug section at the given
+   offset.  */
+extern bfd_boolean reloc_at (struct dwarf_section *, dwarf_vma);