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Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-execstack.c')
-rw-r--r--sysdeps/unix/sysv/linux/dl-execstack.c67
1 files changed, 0 insertions, 67 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-execstack.c b/sysdeps/unix/sysv/linux/dl-execstack.c
deleted file mode 100644
index 3c4de1cb46..0000000000
--- a/sysdeps/unix/sysv/linux/dl-execstack.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/* Stack executability handling for GNU dynamic linker. Linux version.
- 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 <ldsodefs.h>
-#include <sys/mman.h>
-#include <errno.h>
-#include <libintl.h>
-#include <stdbool.h>
-#include <stackinfo.h>
-#include <caller.h>
-#include <sysdep.h>
-
-
-extern int __stack_prot attribute_relro attribute_hidden;
-
-
-int
-internal_function
-_dl_make_stack_executable (void **stack_endp)
-{
- /* This gives us the highest/lowest page that needs to be changed. */
- uintptr_t page = ((uintptr_t) *stack_endp
- & -(intptr_t) GLRO(dl_pagesize));
- int result = 0;
-
- /* Challenge the caller. */
- if (__builtin_expect (__check_caller (RETURN_ADDRESS (0),
- allow_ldso|allow_libpthread) != 0, 0)
- || __builtin_expect (*stack_endp != __libc_stack_end, 0))
- return EPERM;
-
- if (__builtin_expect (__mprotect ((void *) page, GLRO(dl_pagesize),
- __stack_prot) == 0, 1))
- goto return_success;
- result = errno;
- goto out;
-
- return_success:
- /* Clear the address. */
- *stack_endp = NULL;
-
- /* Remember that we changed the permission. */
- GL(dl_stack_flags) |= PF_X;
-
- out:
-#ifdef check_consistency
- check_consistency ();
-#endif
-
- return result;
-}
-rtld_hidden_def (_dl_make_stack_executable)