X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf-bfd.h;h=242750fa581b3163f54efec9c1b81b3dad368171;hb=39ec04904ff172dd67fd43ed3720f26d854732bf;hp=38a9aa060192818dc9f09da0c95051840361ae9f;hpb=cb001c0d283dd884efe06770d033a50fb1bc6c7d;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 38a9aa0601..242750fa58 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -156,9 +156,13 @@ struct elf_link_hash_entry
   /* Same, but tracks a procedure linkage table entry.  */
   union gotplt_union plt;
 
-  /* Symbol size.  */
+  /* Symbol size.  NB: All fields starting from here are cleared by
+    _bfd_elf_link_hash_newfunc.  */
   bfd_size_type size;
 
+  /* Track dynamic relocs copied for this symbol.  */
+  struct elf_dyn_relocs *dyn_relocs;
+
   /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.).  */
   unsigned int type : 8;
 
@@ -536,6 +540,15 @@ struct bfd_link_needed_list
   const char *name;
 };
 
+enum elf_target_os
+{
+  is_normal,
+  is_symbian,	/* Symbian OS.  */
+  is_solaris,	/* Solaris.  */
+  is_vxworks,	/* VxWorks.  */
+  is_nacl	/* Native Client.  */
+};
+
 /* ELF linker hash table.  */
 
 struct elf_link_hash_table
@@ -557,6 +570,9 @@ struct elf_link_hash_table
      section symbols.  */
   bfd_boolean is_relocatable_executable;
 
+  /* TRUE if there are IFUNC resolvers.  */
+  bfd_boolean ifunc_resolvers;
+
   /* The BFD used to hold special sections created by the linker.
      This will be the first BFD found which requires these sections to
      be created.  */
@@ -635,7 +651,21 @@ struct elf_link_hash_table
 
   /* Cached first output tls section and size of PT_TLS segment.  */
   asection *tls_sec;
-  bfd_size_type tls_size;
+  bfd_size_type tls_size;  /* Bytes.  */
+
+  /* The offset into splt of the PLT entry for the TLS descriptor
+     resolver.  Special values are 0, if not necessary (or not found
+     to be necessary yet), and -1 if needed but not determined
+     yet.  */
+  bfd_vma tlsdesc_plt;
+
+  /* The GOT offset for the lazy trampoline.  Communicated to the
+     loader via DT_TLSDESC_GOT.  The magic value (bfd_vma) -1
+     indicates an offset is not allocated.  */
+  bfd_vma tlsdesc_got;
+
+  /* Target OS for linker output.  */
+  enum elf_target_os target_os;
 
   /* A linked list of dynamic BFD's loaded in the link.  */
   struct elf_link_loaded_list *dyn_loaded;
@@ -857,6 +887,9 @@ struct elf_backend_data
      extensions to elf_obj_tdata and elf_link_hash_table structures.  */
   enum elf_target_id target_id;
 
+  /* Target OS.  */
+  enum elf_target_os target_os;
+
   /* The ELF machine code (EM_xxxx) for this backend.  */
   int elf_machine_code;
 
@@ -1083,6 +1116,12 @@ struct elf_backend_data
   bfd_boolean (*elf_backend_size_dynamic_sections)
     (bfd *output_bfd, struct bfd_link_info *info);
 
+  /* The STRIP_ZERO_SIZED_DYNAMIC_SECTIONS function is called by the
+     ELF backend linker to strip zero-sized dynamic sections after
+     the section sizes have been set.  */
+  bfd_boolean (*elf_backend_strip_zero_sized_dynamic_sections)
+    (struct bfd_link_info *info);
+
   /* Set TEXT_INDEX_SECTION and DATA_INDEX_SECTION, the output sections
      we keep to use as a base for relocs and symbols.  */
   void (*elf_backend_init_index_section)
@@ -1509,6 +1548,16 @@ 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;
 
@@ -1943,7 +1992,7 @@ struct elf_obj_tdata
   struct sdt_note *sdt_note_head;
 
   Elf_Internal_Shdr **group_sect_ptr;
-  int num_group;
+  unsigned int num_group;
 
   /* Index into group_sect_ptr, updated by setup_group when finding a
      section's group.  Used to optimize subsequent group searches.  */
@@ -2067,7 +2116,7 @@ extern bfd_boolean _bfd_elf_copy_private_bfd_data
 extern bfd_boolean _bfd_elf_print_private_bfd_data
   (bfd *, void *);
 const char * _bfd_elf_get_symbol_version_string
-  (bfd *, asymbol *, bfd_boolean *);
+  (bfd *, asymbol *, bfd_boolean, bfd_boolean *);
 extern void bfd_elf_print_symbol
   (bfd *, void *, asymbol *, bfd_print_symbol_type);
 
@@ -2510,6 +2559,8 @@ extern bfd_boolean bfd_elf_link_add_symbols
   (bfd *, struct bfd_link_info *);
 extern bfd_boolean _bfd_elf_add_dynamic_entry
   (struct bfd_link_info *, bfd_vma, bfd_vma);
+extern bfd_boolean _bfd_elf_strip_zero_sized_dynamic_sections
+  (struct bfd_link_info *);
 extern int bfd_elf_add_dt_needed_tag
   (bfd *, struct bfd_link_info *);
 extern bfd_boolean _bfd_elf_link_check_relocs
@@ -2720,6 +2771,8 @@ extern char *elfcore_write_aarch_sve
   (bfd *, char *, int *, const void *, int);
 extern char *elfcore_write_aarch_pauth
   (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_arc_v2
+  (bfd *, char *, int *, const void *, int);
 extern char *elfcore_write_lwpstatus
   (bfd *, char *, int *, long, int, const void *);
 extern char *elfcore_write_register_note
@@ -2825,8 +2878,8 @@ extern bfd_boolean _bfd_elf_create_ifunc_sections
   (bfd *, struct bfd_link_info *);
 extern bfd_boolean _bfd_elf_allocate_ifunc_dyn_relocs
   (struct bfd_link_info *, struct elf_link_hash_entry *,
-   struct elf_dyn_relocs **, bfd_boolean *, unsigned int,
-   unsigned int, unsigned int, bfd_boolean);
+   struct elf_dyn_relocs **, unsigned int, unsigned int,
+   unsigned int, bfd_boolean);
 
 extern void elf_append_rela (bfd *, asection *, Elf_Internal_Rela *);
 extern void elf_append_rel (bfd *, asection *, Elf_Internal_Rela *);
@@ -2838,6 +2891,23 @@ 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 *);
+
+extern asection *_bfd_elf_readonly_dynrelocs
+  (struct elf_link_hash_entry *);
+extern bfd_boolean _bfd_elf_maybe_set_textrel
+  (struct elf_link_hash_entry *, void *);
+
 /* Large common section.  */
 extern asection _bfd_elf_large_com_section;
 
@@ -2907,8 +2977,9 @@ extern asection _bfd_elf_large_com_section;
       else if (!bfd_link_relocatable (info))				\
 	{								\
 	  bfd_boolean err;						\
-	  err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR	\
-		 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT);	\
+	  err = (info->unresolved_syms_in_objects == RM_DIAGNOSE &&	\
+		 !info->warn_unresolved_syms)				\
+		 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT;	\
 	  (*info->callbacks->undefined_symbol) (info,			\
 						h->root.root.string,	\
 						input_bfd,		\