./arch/arm/include/asm/barriers.h:33:24: error: operator '>=' has no left operand

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U-boot-2016.09移植到FS2416 Board（s3c2416 MPU）出错解决办法

问题Q:

  CC      lib/asm-offsets.sIn file included from ./arch/arm/include/asm/system.h:6:0,                 from ./arch/arm/include/asm/cache.h:12,                 from include/net.h:19,                 from include/common.h:910,                 from lib/asm-offsets.c:15:./arch/arm/include/asm/barriers.h:33:24: error: operator '>=' has no left operand #if __LINUX_ARM_ARCH__ >= 7                        ^./arch/arm/include/asm/barriers.h:37:26: error: operator '==' has no left operand #elif __LINUX_ARM_ARCH__ == 6                          ^Kbuild:43: recipe for target 'lib/asm-offsets.s' failedmake[1]: *** [lib/asm-offsets.s] Error 1Makefile:1277: recipe for target 'prepare0' failedmake: *** [prepare0] Error 2

解决方法A:

上面这个问题的产生是由于没有指定你所使用的CPU的平台，也就是没有CONFIG_SYS_CPU=xxxx,而这个宏的定义在arch/arm/Kconfig 中config TARGET_SMDK2410    bool "Support smdk2410"    select CPU_ARM920Tconfig TARGET_FS2416    bool "Support fs2416"因为在bool "Support fs2416"后面忘记添加了select CPU_ARM926EJS这句话，所以造成了上面的这个问题写成这样，就解决了问题config TARGET_SMDK2410    bool "Support smdk2410"    select CPU_ARM920Tconfig TARGET_FS2416    bool "Support fs2416"    select CPU_ARM926EJS

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