记一次由于rootfs过大引起的内核编译错误

本文主要是介绍记一次由于rootfs过大引起的内核编译错误，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

记一次由于rootfs过大引起的内核编译错误

前些日子一直在用NFS作为rootfs启动。今日想用initramfs作为rootfs制作独立运行的系统。
可是内核编译到链接阶段一直报这个错误
LD .tmp_vmlinux1
arch/arm/kernel/head.o: In function `__enable_mmu_end':
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:32: relocation truncated to fit: R_ARM_CALL against symbol `printascii' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:34: relocation truncated to fit: R_ARM_CALL against symbol `printhex8' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:36: relocation truncated to fit: R_ARM_CALL against symbol `printascii' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:43: relocation truncated to fit: R_ARM_CALL against symbol `printhex8' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:45: relocation truncated to fit: R_ARM_CALL against symbol `printch' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:48: relocation truncated to fit: R_ARM_CALL against symbol `printascii' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:50: relocation truncated to fit: R_ARM_CALL against symbol `printch' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:55: relocation truncated to fit: R_ARM_CALL against symbol `printascii' defined in .text section in arch/arm/kernel/built-in.o
arch/arm/kernel/head.o: In function `__error_p':
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:254: relocation truncated to fit: R_ARM_CALL against symbol `printascii' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:256: relocation truncated to fit: R_ARM_CALL against symbol `printhex8' defined in .text section in arch/arm/kernel/built-in.o
/home/skykingf/devlop/linux-2.6.38.2/arch/arm/kernel/head-common.S:258: additional relocation overflows omitted from the output
make: *** [.tmp_vmlinux1] Error 1

实在看不出内核哪里出了问题，那个头大啊。
google了国内外中英文的site，有说是编译器版本低了，有说是编译器的bug，有说是内核配的不正确，反反复复编译多次，都找不到正确的原因。
用了之前已经编译好的2.6.33.3内核也报这个错误，看来是rootfs的问题了。
忽然想到是不是rootfs的尺寸问题，前几日在移植mtd-utils时，cp了很多库文件到/lib目录下。

于是在/lib下rm -fr *，之后再把以前备份的最小lib库放进来，重新编译kernel，通过。
不知道偶是不是第一个把2.6.38.2移植到s3c2440平台上的 ^_^