1 files changed, 52 insertions, 0 deletions
diff --git a/elf/dl-reloc-static-pie.c b/elf/dl-reloc-static-pie.c
new file mode 100644
index 0000000..6e43aea
--- /dev/null
+++ b/elf/dl-reloc-static-pie.c
@@ -0,0 +1,52 @@
+/* Support for relocating static PIE.
+   Copyright (C) 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/>.  */
+
+#if ENABLE_STATIC_PIE
+#include <unistd.h>
+#include <ldsodefs.h>
+#include "dynamic-link.h"
+
+/* Relocate static executable with PIE.  */
+
+void
+_dl_relocate_static_pie (void)
+{
+  struct link_map *main_map = _dl_get_dl_main_map ();
+
+# define STATIC_PIE_BOOTSTRAP
+# define BOOTSTRAP_MAP (main_map)
+# define RESOLVE_MAP(sym, version, flags) BOOTSTRAP_MAP
+# include "dynamic-link.h"
+
+  /* Figure out the run-time load address of static PIE.  */
+  main_map->l_addr = elf_machine_load_address ();
+
+  /* Read our own dynamic section and fill in the info array.  */
+  main_map->l_ld = ((void *) main_map->l_addr + elf_machine_dynamic ());
+  elf_get_dynamic_info (main_map, NULL);
+
+# ifdef ELF_MACHINE_BEFORE_RTLD_RELOC
+  ELF_MACHINE_BEFORE_RTLD_RELOC (main_map->l_info);
+# endif
+
+  /* Relocate ourselves so we can do normal function calls and
+     data access using the global offset table.  */
+  ELF_DYNAMIC_RELOCATE (main_map, 0, 0, 0);
+  main_map->l_relocated = 1;
+}
+#endif