[BZ #16046] Static dlopen correction fallout fixes.

Fixes to address issues from BZ #15022 resolution, as follows:

* TLS updates to csu/libc-tls.c -- we now have a proper main map, so
  there's no longer a need to create a separate fake one to keep TLS
  structures,

* random updates to elf/dl-close.c -- LM_ID_BASE is now a valid name
  space ID for static executables as well, so assert that we don't
  unload the main map.  Similarly dl_nns isn't supposed to be 0 for
  static executables anymore,

* actual BZ #16046 fix to elf/dl-iteratephdr.c -- the dl_iterate_phdr
  special function for static executables isn't needed anymore, provided
  that l_phdr and l_phnum members of the main map have been properly
  initialized (done in _dl_non_dynamic_init in elf/dl-support.c now),

* ld.so.cache loader update to elf/dl-load.c --
  GL(dl_ns)[LM_ID_BASE]._ns_loaded is now always initialized in static
  executables so can become the fallback loader map to check for
  DF_1_NODEFLIB, provided that the l_flags_1 member of the main map has
  been properly initialized (done in elf/dl-support.c now); this also
  ensures previous semantics elsewhere in elf/dl-load.c,

* matching updates to elf/dl-support.c -- to complement the two fixes
  above.

1 files changed, 0 insertions, 30 deletions

diff --git a/elf/dl-iteratephdr.c b/elf/dl-iteratephdr.c
index 76e98aa..6572ec3 100644
--- a/elf/dl-iteratephdr.c
+++ b/elf/dl-iteratephdr.c
@@ -86,34 +86,4 @@ __dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
 }
 hidden_def (__dl_iterate_phdr)
 
-#ifdef SHARED
-
 weak_alias (__dl_iterate_phdr, dl_iterate_phdr);
-
-#else
-
-int
-dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
-				  size_t size, void *data), void *data)
-{
-  if (_dl_phnum != 0)
-    {
-      /* This entry describes this statically-linked program itself.  */
-      struct dl_phdr_info info;
-      int ret;
-      info.dlpi_addr = 0;
-      info.dlpi_name = "";
-      info.dlpi_phdr = _dl_phdr;
-      info.dlpi_phnum = _dl_phnum;
-      info.dlpi_adds = GL(dl_load_adds);
-      info.dlpi_subs = GL(dl_load_adds) - GL(dl_ns)[LM_ID_BASE]._ns_nloaded;
-      ret = (*callback) (&info, sizeof (struct dl_phdr_info), data);
-      if (ret)
-	return ret;
-    }
-
-  return __dl_iterate_phdr (callback, data);
-}
-
-
-#endif