main.c File Reference

#include <zephyr/ztest.h>
#include <zephyr/ztest_error_hook.h>

Functions
bool	custom_ram_func (void)
	Simple func to verify PXN via DT config since code with __customramfunc falls in an MPU region with PXN set.
__ramfunc bool	ram_function (void)
	This is a simple solution to execute a code with and without PXN set because code that falls in __ramfunc section has PXN attr set if built with CONFIG_USERSPACE and unset otherwise.
void	test_arm_mpu_pxn_static_config_user (void)
	Verify that MPU region with PXN attribute set can be executed from unprivileged mode.
void	test_arm_mpu_pxn_dt (void)
	Verify that region marked with PXN attribute via DT can be executed from unprivileged mode but cannot be executed from privileged mode.
void	test_arm_mpu_pxn_static_config (void)
	This func is always called in privileged mode so, verify that:
	ZTEST_SUITE (arm_mpu_pxn, NULL, NULL, NULL, NULL, NULL)

Function Documentation

custom_ram_func()

bool custom_ram_func

(

void

)

Simple func to verify PXN via DT config since code with __customramfunc falls in an MPU region with PXN set.

ram_function()

__ramfunc bool ram_function

(

void

)

This is a simple solution to execute a code with and without PXN set because code that falls in __ramfunc section has PXN attr set if built with CONFIG_USERSPACE and unset otherwise.

test_arm_mpu_pxn_dt()

void test_arm_mpu_pxn_dt

(

void

)

Verify that region marked with PXN attribute via DT can be executed from unprivileged mode but cannot be executed from privileged mode.

test_arm_mpu_pxn_static_config()

void test_arm_mpu_pxn_static_config

(

void

)

This func is always called in privileged mode so, verify that:

• region marked with PXN attribute cannot be executed from privileged mode
• and same region when marked without PXN attribute can be executed from privileged mode

test_arm_mpu_pxn_static_config_user()

void test_arm_mpu_pxn_static_config_user

(

void

)

Verify that MPU region with PXN attribute set can be executed from unprivileged mode.

ZTEST_SUITE()

ZTEST_SUITE	(	arm_mpu_pxn	,
		NULL	,
		NULL	,
		NULL	,
		NULL	,
		NULL	)