| /* |
| * Copyright (c) 2013-2014 Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Cortex-M public exception handling |
| * |
| * ARM-specific kernel exception handling interface. Included by arm/arch.h. |
| */ |
| |
| #ifndef ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_M_EXC_H_ |
| #define ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_M_EXC_H_ |
| |
| /* for assembler, only works with constants */ |
| #define Z_EXC_PRIO(pri) (((pri) << (8 - DT_NUM_IRQ_PRIO_BITS)) & 0xff) |
| |
| #if defined(CONFIG_CPU_CORTEX_M_HAS_PROGRAMMABLE_FAULT_PRIOS) |
| #define _EXCEPTION_RESERVED_PRIO 1 |
| #else |
| #define _EXCEPTION_RESERVED_PRIO 0 |
| #endif |
| |
| #define _EXC_FAULT_PRIO 0 |
| #ifdef CONFIG_ZERO_LATENCY_IRQS |
| #define _EXC_ZERO_LATENCY_IRQS_PRIO 0 |
| #define _EXC_SVC_PRIO 1 |
| #define _IRQ_PRIO_OFFSET (_EXCEPTION_RESERVED_PRIO + 1) |
| #else |
| #define _EXC_SVC_PRIO 0 |
| #define _IRQ_PRIO_OFFSET (_EXCEPTION_RESERVED_PRIO) |
| #endif |
| |
| #define _EXC_IRQ_DEFAULT_PRIO Z_EXC_PRIO(_IRQ_PRIO_OFFSET) |
| |
| #ifdef _ASMLANGUAGE |
| GTEXT(z_ExcExit); |
| #else |
| #include <zephyr/types.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct __esf { |
| struct __basic_sf { |
| sys_define_gpr_with_alias(a1, r0); |
| sys_define_gpr_with_alias(a2, r1); |
| sys_define_gpr_with_alias(a3, r2); |
| sys_define_gpr_with_alias(a4, r3); |
| sys_define_gpr_with_alias(ip, r12); |
| sys_define_gpr_with_alias(lr, r14); |
| sys_define_gpr_with_alias(pc, r15); |
| u32_t xpsr; |
| } basic; |
| #if defined(CONFIG_FLOAT) && defined(CONFIG_FP_SHARING) |
| float s[16]; |
| u32_t fpscr; |
| u32_t undefined; |
| #endif |
| }; |
| |
| typedef struct __esf z_arch_esf_t; |
| |
| extern void z_ExcExit(void); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #endif /* ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_M_EXC_H_ */ |