test/assert_builtin.cc

/* Copyright 2024 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "builtin/assert.h"
#include "panic.h"
#include "system.h"
#include "task.h"
#include "test_util.h"

test_static int false_assertion()
{
	ASSERT(1 == 0);
	return EC_ERROR_UNKNOWN;
}

test_static int test_panic_data(void)
{
	const uint32_t expected_reason = PANIC_SW_ASSERT;
	/*
	 * The value of expected_info can be calculated as shown below.
	 * char fname[] = "test/assert_builtin.cc";
	 * int linenum = 14;
	 * int expected_info = (fname[0] << 24) | (fname[1] << 16) | (linenum &
	 * 0xffff);
	 */
	const uint32_t expected_info = 1952776206;
	const uint8_t expected_exception = 0;

	uint32_t reason = 0;
	uint32_t info = 0;
	uint8_t exception = UINT8_MAX;

	panic_get_reason(&reason, &info, &exception);

	TEST_EQ(reason, expected_reason, "%08x");
	TEST_EQ(info, expected_info, "%d");
	TEST_EQ(exception, expected_exception, "%d");

	return EC_SUCCESS;
}

test_static void run_test_step1()
{
	ccprints("Step 1: Run failed assertion.");
	cflush();

	test_set_next_step(TEST_STATE_STEP_2);
	RUN_TEST(false_assertion);

	if (test_get_error_count() == 0) {
		test_set_next_step(TEST_STATE_FAILED);
	}
}

test_static void run_test_step2()
{
	ccprints("Step 2: Verify that reboot happened due to PANIC_SW_ASSERT.");
	cflush();

	RUN_TEST(test_panic_data);

	if (test_get_error_count())
		test_reboot_to_next_step(TEST_STATE_FAILED);
	else
		test_reboot_to_next_step(TEST_STATE_PASSED);
}

void test_run_step(uint32_t state)
{
	if (state & TEST_STATE_MASK(TEST_STATE_STEP_1)) {
		run_test_step1();
	} else if (state & TEST_STATE_MASK(TEST_STATE_STEP_2)) {
		run_test_step2();
	}
}

extern "C" int task_test(void *unused)
{
	if (IS_ENABLED(SECTION_IS_RW))
		test_run_multistep();
	return EC_SUCCESS;
}

void run_test(int argc, const char **argv)
{
	test_reset();
	crec_msleep(30); /* Wait for TASK_ID_TEST to initialize */
	task_wake(TASK_ID_TEST);
}