void __init setup_arch()

in kernel/setup.c [274:344]

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

void __init setup_arch(char **cmdline_p)
{
	enable_mmu();

	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);

	printk(KERN_NOTICE "Boot params:\n"
			   "... MOUNT_ROOT_RDONLY - %08lx\n"
			   "... RAMDISK_FLAGS     - %08lx\n"
			   "... ORIG_ROOT_DEV     - %08lx\n"
			   "... LOADER_TYPE       - %08lx\n"
			   "... INITRD_START      - %08lx\n"
			   "... INITRD_SIZE       - %08lx\n",
			   MOUNT_ROOT_RDONLY, RAMDISK_FLAGS,
			   ORIG_ROOT_DEV, LOADER_TYPE,
			   INITRD_START, INITRD_SIZE);

#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
#endif

	if (!MOUNT_ROOT_RDONLY)
		root_mountflags &= ~MS_RDONLY;
	setup_initial_init_mm(_text, _etext, _edata, _end);

	code_resource.start = virt_to_phys(_text);
	code_resource.end = virt_to_phys(_etext)-1;
	data_resource.start = virt_to_phys(_etext);
	data_resource.end = virt_to_phys(_edata)-1;
	bss_resource.start = virt_to_phys(__bss_start);
	bss_resource.end = virt_to_phys(__bss_stop)-1;

#ifdef CONFIG_CMDLINE_OVERWRITE
	strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line));
#else
	strlcpy(command_line, COMMAND_LINE, sizeof(command_line));
#ifdef CONFIG_CMDLINE_EXTEND
	strlcat(command_line, " ", sizeof(command_line));
	strlcat(command_line, CONFIG_CMDLINE, sizeof(command_line));
#endif
#endif

	/* Save unparsed command line copy for /proc/cmdline */
	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
	*cmdline_p = command_line;

	parse_early_param();

	plat_early_device_setup();

	sh_mv_setup();

	/* Let earlyprintk output early console messages */
	sh_early_platform_driver_probe("earlyprintk", 1, 1);

#ifdef CONFIG_OF_FLATTREE
#ifdef CONFIG_USE_BUILTIN_DTB
	unflatten_and_copy_device_tree();
#else
	unflatten_device_tree();
#endif
#endif

	paging_init();

	/* Perform the machine specific initialisation */
	if (likely(sh_mv.mv_setup))
		sh_mv.mv_setup(cmdline_p);

	plat_smp_setup();
}