uboot中Kconfig架构的理解

1./u-boot-2019.07/Kconfig 是顶层Kconfig

mainmenu "U-Boot $UBOOTVERSION Configuration" #这是总menu

2.source "arch/Kconfig" #然后就引用了arch目录下的Kconfig 这个Kconfig中可以选择不同的架构，有arm M68K MIPS等

choice prompt "Architecture select" default SANDBOX config ARC bool "ARC architecture" select ARCH_EARLY_INIT_R select ARC_TIMER select CLK select HAVE_PRIVATE_LIBGCC select SUPPORT_OF_CONTROL select TIMER config ARM bool "ARM architecture" select CREATE_ARCH_SYMLINK select HAVE_PRIVATE_LIBGCC if !ARM64 select SUPPORT_OF_CONTROL config M68K bool "M68000 architecture" select HAVE_PRIVATE_LIBGCC select SYS_BOOT_GET_CMDLINE select SYS_BOOT_GET_KBD select SUPPORT_OF_CONTROL

1./u-boot-2019.07/Kconfig 是顶层Kconfig mainmenu "U-Boot $UBOOTVERSION Configuration" #这是总menu 2.source "arch/Kconfig" #然后就引用了arch目录下的Kconfig 这个Kconfig中可以选择不同的架构，有arm M68K MIPS等 choice prompt "Architecture select" default SANDBOX config ARC bool "ARC architecture" select ARCH_EARLY_INIT_R select ARC_TIMER select CLK select HAVE_PRIVATE_LIBGCC select SUPPORT_OF_CONTROL select TIMER config ARM bool "ARM architecture" select CREATE_ARCH_SYMLINK select HAVE_PRIVATE_LIBGCC if !ARM64 select SUPPORT_OF_CONTROL config M68K bool "M68000 architecture" select HAVE_PRIVATE_LIBGCC select SYS_BOOT_GET_CMDLINE select SYS_BOOT_GET_KBD select SUPPORT_OF_CONTROL