Handles System Exceptions. More...

#include "exceptions.h"
#include "FreeRTOS.h"
#include "task.h"
#include "utils/crash_handler.h"
#include "system.h"
#include "syscall.h"
#include <stdint.h>
#include <string.h>

Macros
#define	PI_INTSR ((volatile uint32_t)0xCC003000)

#define	PI_INTMR ((volatile uint32_t)0xCC003004)

Functions
void	prvTickISR ()

void	exception_install_branch (uint32_t address, uint32_t handler)

void	exceptions_install_vector ()
	Installs the exception vector into the CPU.

void	exceptions_install_irq (exception_irq_handler_t handler, exception_irq_type_t type)
	Registers an interrupt handler for an IRQ.

void	exception_reset (exception_context_t *context)

void	exception_machine_check (exception_context_t *context)

void	exception_dsi (exception_context_t *context)

void	exception_isi (exception_context_t *context)

void	exception_external (exception_context_t *context)

void	exception_alignment (exception_context_t *context)

void	exception_program (exception_context_t *context)

void	exception_fpu_unavailable (exception_context_t *context)

void	exception_decrementer (exception_context_t *context)

void	exception_syscall (exception_context_t *context)

Variables
const void *	exceptions_vector_reset

const void *	exceptions_vector_machine_check

const void *	exceptions_vector_dsi

const void *	exceptions_vector_isi

const void *	exceptions_vector_external

const void *	exceptions_vector_alignment

const void *	exceptions_vector_program

const void *	exceptions_vector_fpu_unavailable

const void *	exceptions_vector_decrementer

const void *	exceptions_vector_syscall

int32_t	exception_isr_context_switch_needed
	Call the context switch at the end of the ISR if true.

Detailed Description

Handles System Exceptions.

Handles system exceptions interrupt vector table. This includes interrupts. (asynchronous exceptions)

Author: Samuel Fitzsimons (rainbain)

Date: 2025 @license MIT (see LICENSE file)

Function Documentation

◆ exceptions_install_irq()

void exceptions_install_irq	(	exception_irq_handler_t	handler,
		exception_irq_type_t	type )

Registers an interrupt handler for an IRQ.

Registers an interrupt handler using a IRQ type

◆ exceptions_install_vector()

void exceptions_install_vector ( )

Installs the exception vector into the CPU.

Installs the exception vector into the CPU. Called during system_initialize as part of start.s.

Assumes interrupts to be disabled when you do this.

Variable Documentation

◆ exception_isr_context_switch_needed

int32_t exception_isr_context_switch_needed

Call the context switch at the end of the ISR if true.

Call the context switch at the end of the ISR if true. Usually used along side xSemaphoreGiveFromISR such that awoken task are switched into when a ISR wakes a task.

Macros