1 files changed, 126 insertions, 0 deletions
diff --git a/REORG.TODO/dlfcn/dlinfo.c b/REORG.TODO/dlfcn/dlinfo.c
new file mode 100644
index 0000000000..a34e947ed3
--- /dev/null
+++ b/REORG.TODO/dlfcn/dlinfo.c
@@ -0,0 +1,126 @@
+/* dlinfo -- Get information from the dynamic linker.
+   Copyright (C) 2003-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <dlfcn.h>
+#include <link.h>
+#include <ldsodefs.h>
+#include <libintl.h>
+
+#if !defined SHARED && IS_IN (libdl)
+
+int
+dlinfo (void *handle, int request, void *arg)
+{
+  return __dlinfo (handle, request, arg, RETURN_ADDRESS (0));
+}
+
+#else
+
+# include <dl-tls.h>
+
+struct dlinfo_args
+{
+  ElfW(Addr) caller;
+  void *handle;
+  int request;
+  void *arg;
+};
+
+static void
+dlinfo_doit (void *argsblock)
+{
+  struct dlinfo_args *const args = argsblock;
+  struct link_map *l = args->handle;
+
+# if 0
+  if (args->handle == RTLD_SELF)
+    {
+      Lmid_t nsid;
+
+      /* Find the highest-addressed object that CALLER is not below.  */
+      for (nsid = 0; nsid < DL_NNS; ++nsid)
+	for (l = GL(dl_ns)[nsid]._ns_loaded; l != NULL; l = l->l_next)
+	  if (caller >= l->l_map_start && caller < l->l_map_end
+	      && (l->l_contiguous || _dl_addr_inside_object (l, caller)))
+	    break;
+
+      if (l == NULL)
+	_dl_signal_error (0, NULL, NULL, N_("\
+RTLD_SELF used in code not dynamically loaded"));
+    }
+# endif
+
+  switch (args->request)
+    {
+    case RTLD_DI_CONFIGADDR:
+    default:
+      _dl_signal_error (0, NULL, NULL, N_("unsupported dlinfo request"));
+      break;
+
+    case RTLD_DI_LMID:
+      *(Lmid_t *) args->arg = l->l_ns;
+      break;
+
+    case RTLD_DI_LINKMAP:
+      *(struct link_map **) args->arg = l;
+      break;
+
+    case RTLD_DI_SERINFO:
+      _dl_rtld_di_serinfo (l, args->arg, false);
+      break;
+    case RTLD_DI_SERINFOSIZE:
+      _dl_rtld_di_serinfo (l, args->arg, true);
+      break;
+
+    case RTLD_DI_ORIGIN:
+      strcpy (args->arg, l->l_origin);
+      break;
+
+    case RTLD_DI_TLS_MODID:
+      *(size_t *) args->arg = 0;
+      *(size_t *) args->arg = l->l_tls_modid;
+      break;
+
+    case RTLD_DI_TLS_DATA:
+      {
+	void *data = NULL;
+	if (l->l_tls_modid != 0)
+	  data = GLRO(dl_tls_get_addr_soft) (l);
+	*(void **) args->arg = data;
+	break;
+      }
+    }
+}
+
+int
+__dlinfo (void *handle, int request, void *arg DL_CALLER_DECL)
+{
+# ifdef SHARED
+  if (__glibc_unlikely (_dlfcn_hook != NULL))
+    return _dlfcn_hook->dlinfo (handle, request, arg,
+				DL_CALLER);
+# endif
+
+  struct dlinfo_args args = { (ElfW(Addr)) DL_CALLER,
+			      handle, request, arg };
+  return _dlerror_run (&dlinfo_doit, &args) ? -1 : 0;
+}
+# ifdef SHARED
+strong_alias (__dlinfo, dlinfo)
+# endif
+#endif