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-rw-r--r--sysdeps/mach/readonly-area.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/sysdeps/mach/readonly-area.c b/sysdeps/mach/readonly-area.c
deleted file mode 100644
index c187b06a7b..0000000000
--- a/sysdeps/mach/readonly-area.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/* Test if a memory region is wholly unwritable. Mach 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 <stdlib.h>
-#include <stdint.h>
-#include <mach.h>
-
-/* Return 1 if the whole area PTR .. PTR+SIZE is not writable.
- Return -1 if it is writable. */
-
-int
-__readonly_area (const char *ptr, size_t size)
-{
- vm_address_t region_address = (uintptr_t) ptr;
- vm_size_t region_length = size;
- vm_prot_t protection;
- vm_prot_t max_protection;
- vm_inherit_t inheritance;
- boolean_t is_shared;
- mach_port_t object_name;
- vm_offset_t offset;
-
- while (__vm_region (__mach_task_self (),
- &region_address, &region_length,
- &protection, &max_protection, &inheritance, &is_shared,
- &object_name, &offset) == KERN_SUCCESS
- && region_address <= (uintptr_t) ptr)
- {
- region_address += region_length;
- if (region_address < (uintptr_t) ptr)
- continue;
-
- if (protection & VM_PROT_WRITE)
- return -1;
-
- if (region_address - (uintptr_t) ptr >= size)
- break;
- }
-
- return 1;
-}