diff options
Diffstat (limited to 'lib/clang/11.0.0/include/arm_cmse.h')
| -rw-r--r-- | lib/clang/11.0.0/include/arm_cmse.h | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/lib/clang/11.0.0/include/arm_cmse.h b/lib/clang/11.0.0/include/arm_cmse.h deleted file mode 100644 index ecf50ec..0000000 --- a/lib/clang/11.0.0/include/arm_cmse.h +++ /dev/null @@ -1,217 +0,0 @@ -//===---- arm_cmse.h - Arm CMSE support -----------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#ifndef __ARM_CMSE_H -#define __ARM_CMSE_H - -#if (__ARM_FEATURE_CMSE & 0x1) -#include <stddef.h> -#include <stdint.h> - -#define __ARM_CMSE_SECURE_MODE (__ARM_FEATURE_CMSE & 0x2) -#define CMSE_MPU_READWRITE 1 /* checks if readwrite_ok field is set */ -#define CMSE_AU_NONSECURE 2 /* checks if permissions have secure field unset */ -#define CMSE_MPU_UNPRIV 4 /* sets T flag on TT insrtuction */ -#define CMSE_MPU_READ 8 /* checks if read_ok field is set */ -#define CMSE_MPU_NONSECURE 16 /* sets A flag, checks if secure field unset */ -#define CMSE_NONSECURE (CMSE_AU_NONSECURE | CMSE_MPU_NONSECURE) - -#define cmse_check_pointed_object(p, f) \ - cmse_check_address_range((p), sizeof(*(p)), (f)) - -#if defined(__cplusplus) -extern "C" { -#endif - -typedef union { - struct cmse_address_info { -#ifdef __ARM_BIG_ENDIAN - /* __ARM_BIG_ENDIAN */ -#if (__ARM_CMSE_SECURE_MODE) - unsigned idau_region : 8; - unsigned idau_region_valid : 1; - unsigned secure : 1; - unsigned nonsecure_readwrite_ok : 1; - unsigned nonsecure_read_ok : 1; -#else - unsigned : 12; -#endif - unsigned readwrite_ok : 1; - unsigned read_ok : 1; -#if (__ARM_CMSE_SECURE_MODE) - unsigned sau_region_valid : 1; -#else - unsigned : 1; -#endif - unsigned mpu_region_valid : 1; -#if (__ARM_CMSE_SECURE_MODE) - unsigned sau_region : 8; -#else - unsigned : 8; -#endif - unsigned mpu_region : 8; - -#else /* __ARM_LITTLE_ENDIAN */ - unsigned mpu_region : 8; -#if (__ARM_CMSE_SECURE_MODE) - unsigned sau_region : 8; -#else - unsigned : 8; -#endif - unsigned mpu_region_valid : 1; -#if (__ARM_CMSE_SECURE_MODE) - unsigned sau_region_valid : 1; -#else - unsigned : 1; -#endif - unsigned read_ok : 1; - unsigned readwrite_ok : 1; -#if (__ARM_CMSE_SECURE_MODE) - unsigned nonsecure_read_ok : 1; - unsigned nonsecure_readwrite_ok : 1; - unsigned secure : 1; - unsigned idau_region_valid : 1; - unsigned idau_region : 8; -#else - unsigned : 12; -#endif -#endif /*__ARM_LITTLE_ENDIAN */ - } flags; - unsigned value; -} cmse_address_info_t; - -static cmse_address_info_t __attribute__((__always_inline__, __nodebug__)) -cmse_TT(void *__p) { - cmse_address_info_t __u; - __u.value = __builtin_arm_cmse_TT(__p); - return __u; -} -static cmse_address_info_t __attribute__((__always_inline__, __nodebug__)) -cmse_TTT(void *__p) { - cmse_address_info_t __u; - __u.value = __builtin_arm_cmse_TTT(__p); - return __u; -} - -#if __ARM_CMSE_SECURE_MODE -static cmse_address_info_t __attribute__((__always_inline__, __nodebug__)) -cmse_TTA(void *__p) { - cmse_address_info_t __u; - __u.value = __builtin_arm_cmse_TTA(__p); - return __u; -} -static cmse_address_info_t __attribute__((__always_inline__, __nodebug__)) -cmse_TTAT(void *__p) { - cmse_address_info_t __u; - __u.value = __builtin_arm_cmse_TTAT(__p); - return __u; -} -#endif - -#define cmse_TT_fptr(p) cmse_TT(__builtin_bit_cast(void *, (p))) -#define cmse_TTT_fptr(p) cmse_TTT(__builtin_bit_cast(void *, (p))) - -#if __ARM_CMSE_SECURE_MODE -#define cmse_TTA_fptr(p) cmse_TTA(__builtin_bit_cast(void *, (p))) -#define cmse_TTAT_fptr(p) cmse_TTAT(__builtin_bit_cast(void *, (p))) -#endif - -static void *__attribute__((__always_inline__)) -cmse_check_address_range(void *__pb, size_t __s, int __flags) { - uintptr_t __begin = (uintptr_t)__pb; - uintptr_t __end = __begin + __s - 1; - - if (__end < __begin) - return NULL; /* wrap around check */ - - /* Check whether the range crosses a 32-bytes aligned address */ - const int __single_check = (__begin ^ __end) < 0x20u; - - /* execute the right variant of the TT instructions */ - void *__pe = (void *)__end; - cmse_address_info_t __permb, __perme; - switch (__flags & (CMSE_MPU_UNPRIV | CMSE_MPU_NONSECURE)) { - case 0: - __permb = cmse_TT(__pb); - __perme = __single_check ? __permb : cmse_TT(__pe); - break; - case CMSE_MPU_UNPRIV: - __permb = cmse_TTT(__pb); - __perme = __single_check ? __permb : cmse_TTT(__pe); - break; -#if __ARM_CMSE_SECURE_MODE - case CMSE_MPU_NONSECURE: - __permb = cmse_TTA(__pb); - __perme = __single_check ? __permb : cmse_TTA(__pe); - break; - case CMSE_MPU_UNPRIV | CMSE_MPU_NONSECURE: - __permb = cmse_TTAT(__pb); - __perme = __single_check ? __permb : cmse_TTAT(__pe); - break; -#endif - /* if CMSE_NONSECURE is specified w/o __ARM_CMSE_SECURE_MODE */ - default: - return NULL; - } - - /* check that the range does not cross MPU, SAU, or IDAU region boundaries */ - if (__permb.value != __perme.value) - return NULL; -#if !(__ARM_CMSE_SECURE_MODE) - /* CMSE_AU_NONSECURE is only supported when __ARM_FEATURE_CMSE & 0x2 */ - if (__flags & CMSE_AU_NONSECURE) - return NULL; -#endif - - /* check the permission on the range */ - switch (__flags & ~(CMSE_MPU_UNPRIV | CMSE_MPU_NONSECURE)) { -#if (__ARM_CMSE_SECURE_MODE) - case CMSE_MPU_READ | CMSE_MPU_READWRITE | CMSE_AU_NONSECURE: - case CMSE_MPU_READWRITE | CMSE_AU_NONSECURE: - return __permb.flags.nonsecure_readwrite_ok ? __pb : NULL; - - case CMSE_MPU_READ | CMSE_AU_NONSECURE: - return __permb.flags.nonsecure_read_ok ? __pb : NULL; - - case CMSE_AU_NONSECURE: - return __permb.flags.secure ? NULL : __pb; -#endif - case CMSE_MPU_READ | CMSE_MPU_READWRITE: - case CMSE_MPU_READWRITE: - return __permb.flags.readwrite_ok ? __pb : NULL; - - case CMSE_MPU_READ: - return __permb.flags.read_ok ? __pb : NULL; - - default: - return NULL; - } -} - -#if __ARM_CMSE_SECURE_MODE -static int __attribute__((__always_inline__, __nodebug__)) -cmse_nonsecure_caller(void) { - return !((uintptr_t)__builtin_return_address(0) & 1); -} - -#define cmse_nsfptr_create(p) \ - __builtin_bit_cast(__typeof__(p), \ - (__builtin_bit_cast(uintptr_t, p) & ~(uintptr_t)1)) - -#define cmse_is_nsfptr(p) ((__builtin_bit_cast(uintptr_t, p) & 1) == 0) - -#endif /* __ARM_CMSE_SECURE_MODE */ - -void __attribute__((__noreturn__)) cmse_abort(void); -#if defined(__cplusplus) -} -#endif - -#endif /* (__ARM_FEATURE_CMSE & 0x1) */ - -#endif /* __ARM_CMSE_H */ |