|
 |
869a11 |
--- binutils.orig/bfd/elfxx-x86.c 2018-05-14 12:22:29.149657093 +0100
|
|
|
869a11 |
+++ binutils-2.30/bfd/elfxx-x86.c 2018-05-14 12:25:16.244700009 +0100
|
|
|
869a11 |
@@ -839,6 +839,33 @@ _bfd_x86_elf_compare_relocs (const void
|
|
|
869a11 |
return 0;
|
|
|
869a11 |
}
|
|
|
869a11 |
|
|
|
869a11 |
+/* Mark symbol, NAME, as locally defined by linker if it is referenced
|
|
|
869a11 |
+ and not defined in a relocatable object file. */
|
|
|
869a11 |
+
|
|
|
869a11 |
+static void
|
|
|
869a11 |
+elf_x86_linker_defined (struct bfd_link_info *info, const char *name)
|
|
|
869a11 |
+{
|
|
|
869a11 |
+ struct elf_link_hash_entry *h;
|
|
|
869a11 |
+
|
|
|
869a11 |
+ h = elf_link_hash_lookup (elf_hash_table (info), name,
|
|
|
869a11 |
+ FALSE, FALSE, FALSE);
|
|
|
869a11 |
+ if (h == NULL)
|
|
|
869a11 |
+ return;
|
|
|
869a11 |
+
|
|
|
869a11 |
+ while (h->root.type == bfd_link_hash_indirect)
|
|
|
869a11 |
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
|
869a11 |
+
|
|
|
869a11 |
+ if (h->root.type == bfd_link_hash_new
|
|
|
869a11 |
+ || h->root.type == bfd_link_hash_undefined
|
|
|
869a11 |
+ || h->root.type == bfd_link_hash_undefweak
|
|
|
869a11 |
+ || h->root.type == bfd_link_hash_common
|
|
|
869a11 |
+ || (!h->def_regular && h->def_dynamic))
|
|
|
869a11 |
+ {
|
|
|
869a11 |
+ elf_x86_hash_entry (h)->local_ref = 2;
|
|
|
869a11 |
+ elf_x86_hash_entry (h)->linker_def = 1;
|
|
|
869a11 |
+ }
|
|
|
869a11 |
+}
|
|
|
869a11 |
+
|
|
|
869a11 |
bfd_boolean
|
|
|
869a11 |
_bfd_x86_elf_link_check_relocs (bfd *abfd, struct bfd_link_info *info)
|
|
|
869a11 |
{
|
|
|
869a11 |
@@ -869,18 +896,16 @@ _bfd_x86_elf_link_check_relocs (bfd *abf
|
|
|
869a11 |
|
|
|
869a11 |
/* "__ehdr_start" will be defined by linker as a hidden symbol
|
|
|
869a11 |
later if it is referenced and not defined. */
|
|
|
869a11 |
- h = elf_link_hash_lookup (elf_hash_table (info),
|
|
|
869a11 |
- "__ehdr_start",
|
|
|
869a11 |
- FALSE, FALSE, FALSE);
|
|
|
869a11 |
- if (h != NULL
|
|
|
869a11 |
- && (h->root.type == bfd_link_hash_new
|
|
|
869a11 |
- || h->root.type == bfd_link_hash_undefined
|
|
|
869a11 |
- || h->root.type == bfd_link_hash_undefweak
|
|
|
869a11 |
- || h->root.type == bfd_link_hash_common))
|
|
|
869a11 |
+ elf_x86_linker_defined (info, "__ehdr_start");
|
|
|
869a11 |
+
|
|
|
869a11 |
+ if (bfd_link_executable (info))
|
|
|
869a11 |
{
|
|
|
869a11 |
- elf_x86_hash_entry (h)->local_ref = 2;
|
|
|
869a11 |
- elf_x86_hash_entry (h)->linker_def = 1;
|
|
|
869a11 |
- }
|
|
|
869a11 |
+ /* References to __bss_start, _end and _edata should be
|
|
|
869a11 |
+ locally resolved within executables. */
|
|
|
869a11 |
+ elf_x86_linker_defined (info, "__bss_start");
|
|
|
869a11 |
+ elf_x86_linker_defined (info, "_end");
|
|
|
869a11 |
+ elf_x86_linker_defined (info, "_edata");
|
|
|
869a11 |
+ }
|
|
|
869a11 |
}
|
|
|
869a11 |
}
|
|
|
869a11 |
|