199 lines
4.8 KiB
C
199 lines
4.8 KiB
C
/* ARMv8-M Secure Extensions intrinsics include file.
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Copyright (C) 2015-2019 Free Software Foundation, Inc.
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Contributed by ARM Ltd.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _GCC_ARM_CMSE_H
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#define _GCC_ARM_CMSE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if __ARM_FEATURE_CMSE & 1
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#include <stddef.h>
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#ifdef __ARM_BIG_ENDIAN
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typedef union {
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struct cmse_address_info {
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#if __ARM_FEATURE_CMSE & 2
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unsigned idau_region:8;
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unsigned idau_region_valid:1;
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unsigned secure:1;
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unsigned nonsecure_readwrite_ok:1;
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unsigned nonsecure_read_ok:1;
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#else
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unsigned :12;
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#endif
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unsigned readwrite_ok:1;
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unsigned read_ok:1;
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#if __ARM_FEATURE_CMSE & 2
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unsigned sau_region_valid:1;
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#else
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unsigned :1;
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#endif
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unsigned mpu_region_valid:1;
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#if __ARM_FEATURE_CMSE & 2
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unsigned sau_region:8;
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#else
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unsigned :8;
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#endif
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unsigned mpu_region:8;
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} flags;
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unsigned value;
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} cmse_address_info_t;
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#else
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typedef union {
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struct cmse_address_info {
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unsigned mpu_region:8;
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#if __ARM_FEATURE_CMSE & 2
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unsigned sau_region:8;
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#else
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unsigned :8;
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#endif
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unsigned mpu_region_valid:1;
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#if __ARM_FEATURE_CMSE & 2
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unsigned sau_region_valid:1;
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#else
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unsigned :1;
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#endif
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unsigned read_ok:1;
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unsigned readwrite_ok:1;
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#if __ARM_FEATURE_CMSE & 2
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unsigned nonsecure_read_ok:1;
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unsigned nonsecure_readwrite_ok:1;
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unsigned secure:1;
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unsigned idau_region_valid:1;
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unsigned idau_region:8;
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#else
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unsigned :12;
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#endif
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} flags;
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unsigned value;
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} cmse_address_info_t;
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#endif /* __ARM_BIG_ENDIAN */
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#define cmse_TT_fptr(p) (__cmse_TT_fptr ((__cmse_fptr)(p)))
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typedef void (*__cmse_fptr)(void);
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#define __CMSE_TT_ASM(flags) \
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{ \
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cmse_address_info_t __result; \
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__asm__ ("tt" # flags " %0,%1" \
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: "=r"(__result) \
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: "r"(__p) \
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: "memory"); \
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return __result; \
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}
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__extension__ static __inline __attribute__ ((__always_inline__))
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cmse_address_info_t
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__cmse_TT_fptr (__cmse_fptr __p)
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__CMSE_TT_ASM ()
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__extension__ static __inline __attribute__ ((__always_inline__))
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cmse_address_info_t
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cmse_TT (void *__p)
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__CMSE_TT_ASM ()
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#define cmse_TTT_fptr(p) (__cmse_TTT_fptr ((__cmse_fptr)(p)))
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__extension__ static __inline __attribute__ ((__always_inline__))
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cmse_address_info_t
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__cmse_TTT_fptr (__cmse_fptr __p)
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__CMSE_TT_ASM (t)
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__extension__ static __inline __attribute__ ((__always_inline__))
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cmse_address_info_t
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cmse_TTT (void *__p)
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__CMSE_TT_ASM (t)
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#if __ARM_FEATURE_CMSE & 2
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#define cmse_TTA_fptr(p) (__cmse_TTA_fptr ((__cmse_fptr)(p)))
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__extension__ static __inline __attribute__ ((__always_inline__))
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cmse_address_info_t
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__cmse_TTA_fptr (__cmse_fptr __p)
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__CMSE_TT_ASM (a)
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__extension__ static __inline __attribute__ ((__always_inline__))
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cmse_address_info_t
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cmse_TTA (void *__p)
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__CMSE_TT_ASM (a)
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#define cmse_TTAT_fptr(p) (__cmse_TTAT_fptr ((__cmse_fptr)(p)))
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__extension__ static __inline cmse_address_info_t
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__attribute__ ((__always_inline__))
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__cmse_TTAT_fptr (__cmse_fptr __p)
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__CMSE_TT_ASM (at)
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__extension__ static __inline cmse_address_info_t
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__attribute__ ((__always_inline__))
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cmse_TTAT (void *__p)
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__CMSE_TT_ASM (at)
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/* FIXME: diagnose use outside cmse_nonsecure_entry functions. */
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__extension__ static __inline int __attribute__ ((__always_inline__))
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cmse_nonsecure_caller (void)
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{
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return __builtin_arm_cmse_nonsecure_caller ();
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}
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#define CMSE_AU_NONSECURE 2
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#define CMSE_MPU_NONSECURE 16
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#define CMSE_NONSECURE 18
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#define cmse_nsfptr_create(p) ((__typeof__ ((p))) ((__INTPTR_TYPE__) (p) & ~1))
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#define cmse_is_nsfptr(p) (!((__INTPTR_TYPE__) (p) & 1))
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#endif /* __ARM_FEATURE_CMSE & 2 */
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#define CMSE_MPU_UNPRIV 4
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#define CMSE_MPU_READWRITE 1
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#define CMSE_MPU_READ 8
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__extension__ void *
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cmse_check_address_range (void *, size_t, int);
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#define cmse_check_pointed_object(p, f) \
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((__typeof__ ((p))) cmse_check_address_range ((p), sizeof (*(p)), (f)))
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#endif /* __ARM_FEATURE_CMSE & 1 */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _GCC_ARM_CMSE_H */
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