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-rw-r--r--elf/dl-caller.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/elf/dl-caller.c b/elf/dl-caller.c
deleted file mode 100644
index 4526da085e..0000000000
--- a/elf/dl-caller.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* Check whether caller comes from the right place.
- Copyright (C) 2004-2016 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 <assert.h>
-#include <ldsodefs.h>
-#include <stddef.h>
-#include <caller.h>
-#include <gnu/lib-names.h>
-
-
-int
-attribute_hidden
-_dl_check_caller (const void *caller, enum allowmask mask)
-{
- static const char expected1[] = LIBC_SO;
- static const char expected2[] = LIBDL_SO;
-#ifdef LIBPTHREAD_SO
- static const char expected3[] = LIBPTHREAD_SO;
-#endif
- static const char expected4[] = LD_SO;
-
- for (Lmid_t ns = 0; ns < GL(dl_nns); ++ns)
- for (struct link_map *l = GL(dl_ns)[ns]._ns_loaded; l != NULL;
- l = l->l_next)
- if (caller >= (const void *) l->l_map_start
- && caller < (const void *) l->l_text_end)
- {
- /* The address falls into this DSO's address range. Check the
- name. */
- if ((mask & allow_libc) && strcmp (expected1, l->l_name) == 0)
- return 0;
- if ((mask & allow_libdl) && strcmp (expected2, l->l_name) == 0)
- return 0;
-#ifdef LIBPTHREAD_SO
- if ((mask & allow_libpthread) && strcmp (expected3, l->l_name) == 0)
- return 0;
-#endif
- if ((mask & allow_ldso) && strcmp (expected4, l->l_name) == 0)
- return 0;
-
- struct libname_list *runp = l->l_libname;
-
- while (runp != NULL)
- {
- if ((mask & allow_libc) && strcmp (expected1, runp->name) == 0)
- return 0;
- if ((mask & allow_libdl) && strcmp (expected2, runp->name) == 0)
- return 0;
-#ifdef LIBPTHREAD_SO
- if ((mask & allow_libpthread)
- && strcmp (expected3, runp->name) == 0)
- return 0;
-#endif
- if ((mask & allow_ldso) && strcmp (expected4, runp->name) == 0)
- return 0;
-
- runp = runp->next;
- }
-
- break;
- }
-
- /* Maybe the dynamic linker is not yet on the list. */
- if ((mask & allow_ldso) != 0
- && caller >= (const void *) GL(dl_rtld_map).l_map_start
- && caller < (const void *) GL(dl_rtld_map).l_text_end)
- return 0;
-
- /* No valid caller. */
- return 1;
-}