1/* Copyright (c) (2011,2015,2016,2018-2020) Apple Inc. All rights reserved.
2 *
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4 * is contained in the License.txt file distributed with corecrypto) and only to
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11 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
12 *
13 * This file contains Original Code and/or Modifications of Original Code
14 * as defined in and that are subject to the Apple Public Source License
15 * Version 2.0 (the 'License'). You may not use this file except in
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34 */
35
36#ifndef _CORECRYPTO_CCARM_PAC_BTI_MACROS_H_
37#define _CORECRYPTO_CCARM_PAC_BTI_MACROS_H_
38
39/*
40 * This file defines commonly used macros in handwritten assembly
41 * for making functions BTI and PAC compatible.
42 */
43
44#ifndef __arm64e__
45#define __arm64e__ 0
46#endif
47
48.macro SIGN_LR
49#if __arm64e__
50pacibsp
51#endif
52.endmacro
53
54.macro AUTH_LR_AND_RET
55#if __arm64e__
56retab
57#else
58ret
59#endif
60.endmacro
61
62.macro BRANCH_TARGET_CALL
63#if __arm64e__
64hint #34 /* bti c */
65#endif
66.endmacro
67
68
69
70#endif /* _CORECRYPTO_CCARM_PAC_BTI_MACROS_H_ */
71