Merge GDB 7.5.1

bfd/elf-bfd.h

Index: bfd/elf-bfd.h
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 486b76eecf123488e11785a9b35d30dad74479b4..889ce128b4b526ad731af03bee0688b7a3774d4c 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1,6 +1,6 @@
 /* BFD back-end data structures for ELF files.
    Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-   2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+   2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
    Free Software Foundation, Inc.
    Written by Cygnus Support.
 
@@ -428,6 +428,7 @@ enum elf_target_id
   TIC6X_ELF_DATA,
   X86_64_ELF_DATA,
   XTENSA_ELF_DATA,
+  XGATE_ELF_DATA,
   TILEGX_ELF_DATA,
   TILEPRO_ELF_DATA,
   GENERIC_ELF_DATA
@@ -1185,7 +1186,8 @@ struct elf_backend_data
      see elf.c, elfcode.h.  */
   bfd *(*elf_backend_bfd_from_remote_memory)
      (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
-      int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, int len));
+      int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
+				 bfd_size_type len));
 
   /* This function is used by `_bfd_elf_get_synthetic_symtab';
      see elf.c.  */
@@ -1221,6 +1223,12 @@ struct elf_backend_data
   /* Return TRUE if type is a function symbol type.  */
   bfd_boolean (*is_function_type) (unsigned int type);
 
+  /* If the ELF symbol SYM might be a function in SEC, return the
+     function size and set *CODE_OFF to the function's entry point,
+     otherwise return zero.  */
+  bfd_size_type (*maybe_function_sym) (const asymbol *sym, asection *sec,
+				       bfd_vma *code_off);
+
   /* Used to handle bad SHF_LINK_ORDER input.  */
   bfd_error_handler_type link_order_error_handler;
 
@@ -1361,6 +1369,9 @@ struct bfd_elf_section_data
   /* The ELF header for this section.  */
   Elf_Internal_Shdr this_hdr;
 
+  /* INPUT_SECTION_FLAGS if specified in the linker script.  */
+  struct flag_info *section_flag_info;
+
   /* Information about the REL and RELA reloc sections associated
      with this section, if any.  */
   struct bfd_elf_section_reloc_data rel, rela;
@@ -1413,14 +1424,14 @@ struct bfd_elf_section_data
   void *sec_info;
 };
 
-#define elf_section_data(sec)  ((struct bfd_elf_section_data*)(sec)->used_by_bfd)
+#define elf_section_data(sec) ((struct bfd_elf_section_data*)(sec)->used_by_bfd)
 #define elf_linked_to_section(sec) (elf_section_data(sec)->linked_to)
-#define elf_section_type(sec)  (elf_section_data(sec)->this_hdr.sh_type)
-#define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags)
-#define elf_group_name(sec)    (elf_section_data(sec)->group.name)
-#define elf_group_id(sec)      (elf_section_data(sec)->group.id)
-#define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
-#define elf_fde_list(sec)      (elf_section_data(sec)->fde_list)
+#define elf_section_type(sec)	(elf_section_data(sec)->this_hdr.sh_type)
+#define elf_section_flags(sec)	(elf_section_data(sec)->this_hdr.sh_flags)
+#define elf_group_name(sec)	(elf_section_data(sec)->group.name)
+#define elf_group_id(sec)	(elf_section_data(sec)->group.id)
+#define elf_next_in_group(sec)	(elf_section_data(sec)->next_in_group)
+#define elf_fde_list(sec)	(elf_section_data(sec)->fde_list)
 #define elf_sec_group(sec)	(elf_section_data(sec)->sec_group)
 
 #define xvec_get_elf_backend_data(xvec) \
@@ -1807,8 +1818,7 @@ extern void bfd_elf_set_group_contents
   (bfd *, asection *, void *);
 extern asection *_bfd_elf_check_kept_section
   (asection *, struct bfd_link_info *);
-extern void _bfd_elf_link_just_syms
-  (asection *, struct bfd_link_info *);
+#define _bfd_elf_link_just_syms _bfd_generic_link_just_syms
 extern void _bfd_elf_copy_link_hash_symbol_type
   (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
 extern bfd_boolean _bfd_elf_size_group_sections
@@ -1942,6 +1952,8 @@ extern bfd_boolean _bfd_elf_write_section_eh_frame
   (bfd *, struct bfd_link_info *, asection *, bfd_byte *);
 extern bfd_boolean _bfd_elf_write_section_eh_frame_hdr
   (bfd *, struct bfd_link_info *);
+extern bfd_boolean _bfd_elf_eh_frame_present
+  (struct bfd_link_info *);
 extern bfd_boolean _bfd_elf_maybe_strip_eh_frame_hdr
   (struct bfd_link_info *);
 
@@ -2132,9 +2144,6 @@ extern unsigned int _bfd_elf_common_section_index
 extern asection *_bfd_elf_common_section
   (asection *);
 
-extern void _bfd_dwarf2_cleanup_debug_info
-  (bfd *);
-
 extern bfd_vma _bfd_elf_default_got_elt_size
 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, bfd *,
  unsigned long);
@@ -2200,10 +2209,13 @@ extern bfd_boolean _bfd_elf_map_sections_to_segments
 
 extern bfd_boolean _bfd_elf_is_function_type (unsigned int);
 
+extern bfd_size_type _bfd_elf_maybe_function_sym (const asymbol *, asection *,
+						  bfd_vma *);
+
 extern int bfd_elf_get_default_section_type (flagword);
 
-extern void bfd_elf_lookup_section_flags
-  (struct bfd_link_info *, struct flag_info *);
+extern bfd_boolean bfd_elf_lookup_section_flags
+  (struct bfd_link_info *, struct flag_info *, asection *);
 
 extern Elf_Internal_Phdr * _bfd_elf_find_segment_containing_section
   (bfd * abfd, asection * section);
@@ -2250,10 +2262,10 @@ extern char *elfcore_write_register_note
 
 extern bfd *_bfd_elf32_bfd_from_remote_memory
   (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
-   int (*target_read_memory) (bfd_vma, bfd_byte *, int));
+   int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type));
 extern bfd *_bfd_elf64_bfd_from_remote_memory
   (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
-   int (*target_read_memory) (bfd_vma, bfd_byte *, int));
+   int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type));
 
 extern bfd_vma bfd_elf_obj_attr_size (bfd *);
 extern void bfd_elf_set_obj_attr_contents (bfd *, bfd_byte *, bfd_vma);
@@ -2403,10 +2415,12 @@ extern asection _bfd_elf_large_com_section;
    link, we remove such relocations.  Otherwise, we just want the
    section contents zeroed and avoid any special processing.  */
 #define RELOC_AGAINST_DISCARDED_SECTION(info, input_bfd, input_section,	\
-					rel, relend, howto, contents)	\
+					rel, count, relend,		\
+					howto, index, contents)		\
   {									\
+    int i_;								\
     _bfd_clear_contents (howto, input_bfd, input_section,		\
-			 contents + rel->r_offset);			\
+			 contents + rel[index].r_offset);		\
 									\
     if (info->relocatable						\
 	&& (input_section->flags & SEC_DEBUGGING))			\
@@ -2418,23 +2432,28 @@ extern asection _bfd_elf_large_com_section;
 	rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); \
 									\
 	/* Avoid empty output section.  */				\
-	if (rel_hdr->sh_size > rel_hdr->sh_entsize)			\
+	if (rel_hdr->sh_size > count * rel_hdr->sh_entsize)		\
 	  {								\
-	    rel_hdr->sh_size -= rel_hdr->sh_entsize;			\
+	    rel_hdr->sh_size -= count * rel_hdr->sh_entsize;		\
 	    rel_hdr = _bfd_elf_single_rel_hdr (input_section);		\
-	    rel_hdr->sh_size -= rel_hdr->sh_entsize;			\
+	    rel_hdr->sh_size -= count * rel_hdr->sh_entsize;		\
 									\
-	    memmove (rel, rel + 1, (relend - rel - 1) * sizeof (*rel));	\
+	    memmove (rel, rel + count,					\
+		     (relend - rel - count) * sizeof (*rel));		\
 									\
-	    input_section->reloc_count--;				\
-	    relend--;							\
+	    input_section->reloc_count -= count;			\
+	    relend -= count;						\
 	    rel--;							\
 	    continue;							\
 	  }								\
       }									\
 									\
-    rel->r_info = 0;							\
-    rel->r_addend = 0;							\
+    for (i_ = 0; i_ < count; i_++)					\
+      {									\
+	rel[i_].r_info = 0;						\
+	rel[i_].r_addend = 0;						\
+      }									\
+    rel += count - 1;							\
     continue;								\
   }