diff options
Diffstat (limited to 'sysdeps/mach/hurd/dl-execstack.c')
-rw-r--r-- | sysdeps/mach/hurd/dl-execstack.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/sysdeps/mach/hurd/dl-execstack.c b/sysdeps/mach/hurd/dl-execstack.c deleted file mode 100644 index 1168df9262..0000000000 --- a/sysdeps/mach/hurd/dl-execstack.c +++ /dev/null @@ -1,51 +0,0 @@ -/* Stack executability handling for GNU dynamic linker. Hurd version. - Copyright (C) 2004-2017 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 <hurdstartup.h> -#include <errno.h> - -extern struct hurd_startup_data *_dl_hurd_data attribute_hidden; - -/* There is no portable way to know the bounds of the initial thread's stack - so as to mprotect it. */ - -int -internal_function -_dl_make_stack_executable (void **stack_endp) -{ - /* Challenge the caller. */ - if (__builtin_expect (*stack_endp != __libc_stack_end, 0)) - return EPERM; - *stack_endp = NULL; - -#if IS_IN (rtld) - if (__mprotect ((void *)_dl_hurd_data->stack_base, _dl_hurd_data->stack_size, - PROT_READ|PROT_WRITE|PROT_EXEC) != 0) - return errno; - - /* Remember that we changed the permission. */ - GL(dl_stack_flags) |= PF_X; - - return 0; -#else - /* We don't bother to implement this for static linking. */ - return ENOSYS; -#endif -} -rtld_hidden_def (_dl_make_stack_executable) |