/*
* Copyright (c) 2015 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_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. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SECTION_KEYWORDS_H
#define _SECTION_KEYWORDS_H
#define __PLACE_IN_SECTION(__segment__section) \
__attribute__((used, section(__segment__section)))
#define __SEGMENT_START_SYM(seg) asm("segment$start$" seg)
#define __SEGMENT_END_SYM(seg) asm("segment$end$" seg)
#define __SECTION_START_SYM(seg, sect) asm("section$start$" seg "$" sect)
#define __SECTION_END_SYM(seg, sect) asm("section$end$" seg "$" sect)
#if defined(__arm64__) || defined (__x86_64__)
#define SECURITY_SEGMENT_NAME "__DATA"
#define SECURITY_SECTION_NAME "__const"
#define SECURITY_SEGMENT_SECTION_NAME "__DATA,__const"
#define __security_const_early const
#define __security_const_late __attribute__((section(SECURITY_SEGMENT_SECTION_NAME)))
#define __security_read_write
#if HIBERNATION
#define MARK_AS_HIBERNATE_TEXT __attribute__((section("__HIB, __text, regular, pure_instructions")))
#define MARK_AS_HIBERNATE_DATA __attribute__((section("__HIB, __data")))
#define MARK_AS_HIBERNATE_DATA_CONST_LATE __attribute__((section("__HIB, __const")))
#endif /* HIBERNATION */
#endif /* __arm64__ || __x86_64__ */
#ifndef __security_const_early
#define __security_const_early const
#endif
#ifndef __security_const_late
#define __security_const_late
#endif
#ifndef __security_read_write
#define __security_read_write
#endif
#ifndef MARK_AS_HIBERNATE_TEXT
#define MARK_AS_HIBERNATE_TEXT
#endif
#ifndef MARK_AS_HIBERNATE_DATA
#define MARK_AS_HIBERNATE_DATA
#endif
#ifndef MARK_AS_HIBERNATE_DATA_CONST_LATE
#define MARK_AS_HIBERNATE_DATA_CONST_LATE
#endif
#define SECURITY_READ_ONLY_EARLY(_t) _t __security_const_early __attribute__((used))
#define SECURITY_READ_ONLY_LATE(_t) _t __security_const_late __attribute__((used))
#define SECURITY_READ_WRITE(_t) _t __security_read_write __attribute__((used))
#if CONFIG_SPTM
/*
* Place a function in a special segment, __TEXT_BOOT_EXEC. Code placed
* in this segment will be allowed by the SPTM to execute during the fixups
* phase; the rest of the code will be mapped as RW, so that it can be overwritten.
* Code that is required to execute in order to apply fixups MUST be contained
* in this special segment.
*/
#define MARK_AS_FIXUP_TEXT __attribute__((used, section("__TEXT_BOOT_EXEC,__bootcode,regular,pure_instructions")))
#else
#define MARK_AS_FIXUP_TEXT
#endif
#endif /* _SECTION_KEYWORDS_H_ */