arm: Remove lazy tlsdesc initialization related code

Lazy tlsdesc initialization is no longer used in the dynamic linker
so all related code can be removed.

	* sysdeps/arm/dl-machine.h (elf_machine_runtime_setup): Remove
	DT_TLSDESC_GOT initialization.
	* sysdeps/arm/dl-tlsdesc.S (_dl_tlsdesc_lazy_resolver): Remove.
	(_dl_tlsdesc_resolve_hold): Likewise.
	* sysdeps/aarch64/dl-tlsdesc.h (_dl_tlsdesc_lazy_resolver): Remove.
	(_dl_tlsdesc_resolve_hold): Likewise.
	* sysdeps/aarch64/tlsdesc.c (_dl_tlsdesc_lazy_resolver_fixup): Remove.
	(_dl_tlsdesc_resolve_hold_fixup): Likewise.

1 files changed, 1 insertions, 118 deletions

diff --git a/sysdeps/arm/tlsdesc.c b/sysdeps/arm/tlsdesc.c
index ad79506178..329f26e308 100644
--- a/sysdeps/arm/tlsdesc.c
+++ b/sysdeps/arm/tlsdesc.c
@@ -16,130 +16,13 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <link.h>
 #include <ldsodefs.h>
-#include <elf/dynamic-link.h>
 #include <tls.h>
 #include <dl-tlsdesc.h>
 #include <dl-unmap-segments.h>
+#define _dl_tlsdesc_resolve_hold 0
 #include <tlsdeschtab.h>
 
-/* This function is used to lazily resolve TLS_DESC REL relocations
-   Besides the TLS descriptor itself, we get the module's got address
-   as the second parameter. */
-
-void
-attribute_hidden
-_dl_tlsdesc_lazy_resolver_fixup (struct tlsdesc volatile *td,
-				 Elf32_Addr *got)
-{
-  struct link_map *l = (struct link_map *)got[1];
-  lookup_t result;
-  unsigned long value;
-
-  if (_dl_tlsdesc_resolve_early_return_p
-      (td, (void*)(D_PTR (l, l_info[ADDRIDX (DT_TLSDESC_PLT)]) + l->l_addr)))
-    return;
-
-  if (td->argument.value & 0x80000000)
-    {
-      /* A global symbol, this is the symbol index.  */
-      /* The code below was borrowed from _dl_fixup().  */
-      const Elf_Symndx symndx = td->argument.value ^ 0x80000000;
-      const ElfW(Sym) *const symtab
-	= (const void *) D_PTR (l, l_info[DT_SYMTAB]);
-      const char *strtab = (const void *) D_PTR (l, l_info[DT_STRTAB]);
-      const ElfW(Sym) *sym = &symtab[symndx];
-
-      /* Look up the target symbol.  If the normal lookup rules are not
-	 used don't look in the global scope.  */
-      if (ELFW(ST_BIND) (sym->st_info) != STB_LOCAL
-	  && __builtin_expect (ELFW(ST_VISIBILITY) (sym->st_other), 0) == 0)
-	{
-	  const struct r_found_version *version = NULL;
-
-	  if (l->l_info[VERSYMIDX (DT_VERSYM)] != NULL)
-	    {
-	      const ElfW(Half) *vernum =
-		(const void *) D_PTR (l, l_info[VERSYMIDX (DT_VERSYM)]);
-	      ElfW(Half) ndx = vernum[symndx] & 0x7fff;
-	      version = &l->l_versions[ndx];
-	      if (version->hash == 0)
-		version = NULL;
-	    }
-
-	  result = _dl_lookup_symbol_x
-	    (strtab + sym->st_name, l, &sym,
-	     l->l_scope, version, ELF_RTYPE_CLASS_PLT,
-	     DL_LOOKUP_ADD_DEPENDENCY, NULL);
-	  if (sym)
-	    value = sym->st_value;
-	  else
-	    {
-	      td->entry = _dl_tlsdesc_undefweak;
-	      goto done;
-	    }
-	}
-      else
-	{
-	  /* We already found the symbol.  The module (and therefore its load
-	     address) is also known.  */
-	  result = l;
-	  value = sym->st_value;
-	}
-    }
-  else
-    {
-      /* A local symbol, this is the offset within our tls section.
-	 */
-      value = td->argument.value;
-      result = l;
-    }
-
-#ifndef SHARED
-  CHECK_STATIC_TLS (l, result);
-#else
-  if (!TRY_STATIC_TLS (l, result))
-    {
-      td->argument.pointer = _dl_make_tlsdesc_dynamic (result, value);
-      td->entry = _dl_tlsdesc_dynamic;
-    }
-  else
-#endif
-    {
-      td->argument.value = value + result->l_tls_offset;
-      td->entry = _dl_tlsdesc_return;
-    }
-
- done:
-  _dl_tlsdesc_wake_up_held_fixups ();
-}
-
-/* This function is used to avoid busy waiting for other threads to
-   complete the lazy relocation.  Once another thread wins the race to
-   relocate a TLS descriptor, it sets the descriptor up such that this
-   function is called to wait until the resolver releases the
-   lock.  */
-
-void
-attribute_hidden
-_dl_tlsdesc_resolve_hold_fixup (struct tlsdesc volatile *td,
-				void *caller)
-{
-  /* Maybe we're lucky and can return early.  */
-  if (caller != td->entry)
-    return;
-
-  /* Locking here will stop execution until the running resolver runs
-     _dl_tlsdesc_wake_up_held_fixups(), releasing the lock.
-
-     FIXME: We'd be better off waiting on a condition variable, such
-     that we didn't have to hold the lock throughout the relocation
-     processing.  */
-  __rtld_lock_lock_recursive (GL(dl_load_lock));
-  __rtld_lock_unlock_recursive (GL(dl_load_lock));
-}
-
 /* Unmap the dynamic object, but also release its TLS descriptor table
    if there is one.  */