Improve "unrecognized relocation" error messages to add the suggestion that the linke...
[binutils-gdb.git] / bfd / elfnn-aarch64.c
index de7b627004fcc63a0c4a572167f016f698f37003..0d8332e69ce847e0a190ac5cf540eb9345ddb3a0 100644 (file)
@@ -6072,17 +6072,11 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
       r_symndx = ELFNN_R_SYM (rel->r_info);
       r_type = ELFNN_R_TYPE (rel->r_info);
 
-      bfd_reloc.howto = elfNN_aarch64_howto_from_type (r_type);
-      howto = bfd_reloc.howto;
+      howto = bfd_reloc.howto = elfNN_aarch64_howto_from_type (r_type);
 
       if (howto == NULL)
-       {
-         /* xgettext:c-format */
-         _bfd_error_handler
-           (_("%B: unrecognized relocation (0x%x) in section `%A'"),
-            input_bfd, r_type, input_section);
-         return FALSE;
-       }
+       return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
+
       bfd_r_type = elfNN_aarch64_bfd_reloc_from_howto (howto);
 
       h = NULL;
@@ -7634,8 +7628,39 @@ elfNN_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSE
                                const asection *rel_sec ATTRIBUTE_UNUSED,
                                const Elf_Internal_Rela *rela)
 {
+  struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info);
+
+  if (htab->root.dynsym != NULL
+      && htab->root.dynsym->contents != NULL)
+    {
+      /* Check relocation against STT_GNU_IFUNC symbol if there are
+        dynamic symbols.  */
+      bfd *abfd = info->output_bfd;
+      const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+      unsigned long r_symndx = ELFNN_R_SYM (rela->r_info);
+      if (r_symndx != STN_UNDEF)
+       {
+         Elf_Internal_Sym sym;
+         if (!bed->s->swap_symbol_in (abfd,
+                                      (htab->root.dynsym->contents
+                                       + r_symndx * bed->s->sizeof_sym),
+                                      0, &sym))
+           {
+             /* xgettext:c-format */
+             _bfd_error_handler (_("%B symbol number %lu references"
+                                   " nonexistent SHT_SYMTAB_SHNDX section"),
+                                   abfd, r_symndx);
+             /* Ideally an error class should be returned here.  */
+           }
+         else if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC)
+           return reloc_class_ifunc;
+       }
+    }
+
   switch ((int) ELFNN_R_TYPE (rela->r_info))
     {
+    case AARCH64_R (IRELATIVE):
+      return reloc_class_ifunc;
     case AARCH64_R (RELATIVE):
       return reloc_class_relative;
     case AARCH64_R (JUMP_SLOT):