硬件資源：64M SDRAM/256M nandflash(k9f2g08u0a）/4M nor flash（JS28F320）
開發環境：ubuntu 10.04
源碼：u-boot-2009.11
交叉編譯器arm-linux-gcc-3.3.2
一、建立開發板項目、測試並編譯環境
以下是出現的錯誤
1、arm-linux-ld: ERROR: /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_udivsi3.oS) uses hardware FP, whereas u-boot uses software FP
沒有更多的歸檔文件: failed to merge target specific data of file /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_udivsi3.oS)
arm-linux-ld: ERROR: /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_divsi3.oS) uses hardware FP, whereas u-boot uses software FP
沒有更多的歸檔文件: failed to merge target specific data of file /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_divsi3.oS)
arm-linux-ld: ERROR: /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_umodsi3.oS) uses hardware FP, whereas u-boot uses software FP
沒有更多的歸檔文件: failed to merge target specific data of file /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_umodsi3.oS)
arm-linux-ld: ERROR: /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_dvmd_lnx.oS) uses hardware FP, whereas u-boot uses software FP
沒有更多的歸檔文件: failed to merge target specific data of file /usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_dvmd_lnx.oS)
make: *** [u-boot] 錯誤 1
出現這樣的錯誤時發現忘了修改cpu/arm920t/config.mk原文是下面這樣的
PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# Supply options according to compiler version
#
# =========================================================================
PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
修改爲：
PLATFORM_RELFLAGS += -fno-common -ffixed-r8
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# Supply options according to compiler version
#
# =========================================================================
PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
接下來
make xxx_config
make
可是還是出現同樣的錯誤，google了一下找到一篇http://heyunhuan513.blog.163.com/blog/static/16020422009210112035734/
解決不了問題啊！
決定換編譯器試試，把編譯器換成了4.3.2的
make xxx_config
make
上面的問題解決了，又出現新的問題。
2、arm-linux-ld: ERROR: Source object lib_generic/libgeneric.a(crc16.o) has EABI version 0, but target u-boot has EABI version 5
arm-linux-ld: failed to merge target specific data of file lib_generic/libgeneric.a(crc16.o)
arm-linux-ld: ERROR: Source object lib_generic/libgeneric.a(ctype.o) has EABI version 0, but target u-boot has EABI version 5
arm-linux-ld: failed to merge target specific data of file lib_generic/libgeneric.a(ctype.o)
arm-linux-ld: ERROR: Source object lib_generic/libgeneric.a(string.o) has EABI version 0, but target u-boot has EABI version 5
arm-linux-ld: failed to merge target specific data of file lib_generic/libgeneric.a(string.o)
make: *** [u-boot] 錯誤 1
看了很多帖子可大多是跟我的相反的
arm-linux-ld: ERROR: Source object lib_generic/libgeneric.a(ctype.o) has EABI version 5, but target u-boot has EABI version 0
沒找到什麼好的解決方法，在無意中敲入下面的命令
make distclean
make xxx_config
make
哈哈！完全通過了！
後來有把編譯器換到3.3.2
make distclean
make xxx_config
make
嘿嘿！也通過了！
看來make distclean很重要哦！
折騰了半天原來都是少敲入一個make distclean啊！
繼續下面的工作吧