82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2016 Jean-Paul Etienne <fractalclone@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief RISCV32 public exception handling
|
|
*
|
|
* RISCV32-specific kernel exception handling interface.
|
|
*/
|
|
|
|
#ifndef _ARCH_RISCV32_EXP_H_
|
|
#define _ARCH_RISCV32_EXP_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
#include <stdint.h>
|
|
#include <toolchain.h>
|
|
|
|
struct __esf {
|
|
uint32_t ra; /* return address */
|
|
uint32_t gp; /* global pointer */
|
|
uint32_t tp; /* thread pointer */
|
|
|
|
uint32_t t0; /* Caller-saved temporary register */
|
|
uint32_t t1; /* Caller-saved temporary register */
|
|
uint32_t t2; /* Caller-saved temporary register */
|
|
uint32_t t3; /* Caller-saved temporary register */
|
|
uint32_t t4; /* Caller-saved temporary register */
|
|
uint32_t t5; /* Caller-saved temporary register */
|
|
uint32_t t6; /* Caller-saved temporary register */
|
|
|
|
uint32_t a0; /* function argument/return value */
|
|
uint32_t a1; /* function argument */
|
|
uint32_t a2; /* function argument */
|
|
uint32_t a3; /* function argument */
|
|
uint32_t a4; /* function argument */
|
|
uint32_t a5; /* function argument */
|
|
uint32_t a6; /* function argument */
|
|
uint32_t a7; /* function argument */
|
|
|
|
uint32_t mepc; /* machine exception program counter */
|
|
uint32_t mstatus; /* machine status register */
|
|
|
|
#if defined(CONFIG_SOC_RISCV32_PULPINO)
|
|
/* pulpino hardware loop registers */
|
|
uint32_t lpstart0;
|
|
uint32_t lpend0;
|
|
uint32_t lpcount0;
|
|
uint32_t lpstart1;
|
|
uint32_t lpend1;
|
|
uint32_t lpcount1;
|
|
#endif
|
|
};
|
|
|
|
typedef struct __esf NANO_ESF;
|
|
extern const NANO_ESF _default_esf;
|
|
|
|
extern FUNC_NORETURN void _NanoFatalErrorHandler(unsigned int reason,
|
|
const NANO_ESF *esf);
|
|
extern void _SysFatalErrorHandler(unsigned int reason,
|
|
const NANO_ESF *esf);
|
|
|
|
#endif /* _ASMLANGUAGE */
|
|
|
|
#define _NANO_ERR_CPU_EXCEPTION (0) /* Any unhandled exception */
|
|
#define _NANO_ERR_INVALID_TASK_EXIT (1) /* Invalid task exit */
|
|
#define _NANO_ERR_STACK_CHK_FAIL (2) /* Stack corruption detected */
|
|
#define _NANO_ERR_ALLOCATION_FAIL (3) /* Kernel Allocation Failure */
|
|
#define _NANO_ERR_SPURIOUS_INT (4) /* Spurious interrupt */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _ARCH_RISCV32_EXP_H_ */
|