/* * Copyright (c) 2016 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef __VM_H #define __VM_H static inline bool mvm_aslr_enabled(void) { return _dyld_get_image_slide((const struct mach_header *)_NSGetMachExecuteHeader()) != 0; } MALLOC_NOEXPORT void mvm_aslr_init(void); MALLOC_NOEXPORT void * mvm_allocate_pages(size_t size, unsigned char align, unsigned debug_flags, int vm_page_label); MALLOC_NOEXPORT void * mvm_allocate_pages_securely(size_t size, unsigned char align, int vm_page_label, uint32_t debug_flags); MALLOC_NOEXPORT void mvm_deallocate_pages(void *addr, size_t size, unsigned debug_flags); MALLOC_NOEXPORT int mvm_madvise_free(rack_t *szone, region_t r, uintptr_t pgLo, uintptr_t pgHi, uintptr_t *last); MALLOC_NOEXPORT int mvm_madvise_reuse(region_t r, uintptr_t pgLo, uintptr_t phHi, uint32_t debug_flags); MALLOC_NOEXPORT void mvm_protect(void *address, size_t size, unsigned protection, unsigned debug_flags); #endif // __VM_H