arm_interrupt.c File Reference

#include <zephyr/ztest.h>
#include <zephyr/arch/cpu.h>
#include <cmsis_core.h>
#include <zephyr/sys/barrier.h>
#include <zephyr/internal/syscall_handler.h>
#include "test_syscalls.h"
#include <zephyr/syscalls/test_arm_user_interrupt_syscall_mrsh.c>

Macros
#define	MAIN_PRIORITY   7
#define	PRIORITY   5

Functions
static	K_THREAD_STACK_DEFINE (esf_collection_stack, 2048)
static int	check_esf_matches_expectations (const struct arch_esf *pEsf)
	Validates that pEsf matches state from set_regs_with_known_pattern()
void	k_sys_fatal_error_handler (unsigned int reason, const struct arch_esf *pEsf)
	Fatal error policy handler.
void	set_regs_with_known_pattern (void *p1, void *p2, void *p3)
	Set ARM registers with a known pattern: r0-r12 are set to 0...12, respectively r13 (sp) is left untouched r14 (pc) will point to the faulting instruction (udf #90) r15 (lr) is set to 15 (since a fault takes place, we never use the value)
void	test_arm_esf_collection (void)
	Test to verify code fault handling in ISR execution context.
void	arm_isr_handler (const void *args)
void	test_arm_interrupt (void)
	Test ARM Interrupt handling.
void	test_arm_user_interrupt (void)
	Test ARM Interrupt handling in user mode.
void	test_arm_null_pointer_exception (void)
	Test ARM Null Pointer Exception handling.

Variables
static volatile int	test_flag
static volatile int	expected_reason = -1
static volatile int	run_esf_validation
static volatile int	esf_validation_rv
static volatile uint32_t	expected_msp
static struct k_thread	esf_collection_thread

Macro Definition Documentation

MAIN_PRIORITY

#define MAIN_PRIORITY   7

PRIORITY

#define PRIORITY   5

Function Documentation

arm_isr_handler()

void arm_isr_handler

(

const void *

args

)

check_esf_matches_expectations()

static int check_esf_matches_expectations ( const struct arch_esf * pEsf )

static

Validates that pEsf matches state from set_regs_with_known_pattern()

K_THREAD_STACK_DEFINE()

static K_THREAD_STACK_DEFINE ( esf_collection_stack , 2048  )

static

set_regs_with_known_pattern()

void set_regs_with_known_pattern	(	void *	p1,
		void *	p2,
		void *	p3 )

Set ARM registers with a known pattern: r0-r12 are set to 0...12, respectively r13 (sp) is left untouched r14 (pc) will point to the faulting instruction (udf #90) r15 (lr) is set to 15 (since a fault takes place, we never use the value)

Note: Routine was written to be ARMV6M compatible

In k_sys_fatal_error_handler above we will check that the ESF provided as a parameter matches these expectations.

test_arm_interrupt()

void test_arm_interrupt

(

void

)

Test ARM Interrupt handling.

test_arm_user_interrupt()

void test_arm_user_interrupt

(

void

)

Test ARM Interrupt handling in user mode.

Variable Documentation

esf_collection_thread

struct k_thread esf_collection_thread

static

esf_validation_rv

volatile int esf_validation_rv

static

expected_msp

volatile uint32_t expected_msp

static

expected_reason

volatile int expected_reason = -1

static

run_esf_validation

volatile int run_esf_validation

static

test_flag

volatile int test_flag

static