void __init setup_arch()

in kernel/setup.c [39:89]

• 25 lines of code
• 3 McCabe index (conditional complexity)

void __init setup_arch(char **cmdline_p)
{
	char *p = &external_cmdline_buffer;

	/*
	 * These will eventually be pulled in via either some hypervisor
	 * or devicetree description.  Hardwiring for now.
	 */
	pcycle_freq_mhz = 600;
	thread_freq_mhz = 100;
	sleep_clk_freq = 32000;

	/*
	 * Set up event bindings to handle exceptions and interrupts.
	 */
	__vmsetvec(_K_VM_event_vector);

	printk(KERN_INFO "PHYS_OFFSET=0x%08lx\n", PHYS_OFFSET);

	/*
	 * Simulator has a few differences from the hardware.
	 * For now, check uninitialized-but-mapped memory
	 * prior to invoking setup_arch_memory().
	 */
	if (*(int *)((unsigned long)_end + 8) == 0x1f1f1f1f)
		on_simulator = 1;
	else
		on_simulator = 0;

	if (p[0] != '\0')
		strlcpy(boot_command_line, p, COMMAND_LINE_SIZE);
	else
		strlcpy(boot_command_line, default_command_line,
			COMMAND_LINE_SIZE);

	/*
	 * boot_command_line and the value set up by setup_arch
	 * are both picked up by the init code. If no reason to
	 * make them different, pass the same pointer back.
	 */
	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
	*cmdline_p = cmd_line;

	parse_early_param();

	setup_arch_memory();

#ifdef CONFIG_SMP
	smp_start_cpus();
#endif
}