/opt/arm-2010.09/bin/../lib/gcc/arm-none-linux-gnueabi/4.5.1/armv4t/libgcc.a(_bswapsi2.o):(.ARM.exidx+0x0): undefined reference to `__aeabi_unwind_cpp_pr0‘
make: *** [u-boot] Error 1

一旦编译uboot出现上述错误，请不要慌张！解决办法官网已经给出，主要解决办法如下：

vim 打开./lib_arm/eabi_compat.c（具体的位置根据自己的情况而定）并添加如下空函数即可解决：

/* Dummy function to avoid linker complaints */

void __aeabi_unwind_cpp_pr0(void)

{

};

以下为官网原内容：

[U-Boot] [PATCH] ARM: add __aeabi_unwind_cpp_pr0() function to avoid linker complaints

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Signed-off-by: Wolfgang Denk <wd at denx.de>
---
 arch/arm/lib/eabi_compat.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm/lib/eabi_compat.c b/arch/arm/lib/eabi_compat.c
index 86eacf1..eb3e26d 100644
--- a/arch/arm/lib/eabi_compat.c
+++ b/arch/arm/lib/eabi_compat.c
@@ -16,3 +16,8 @@ int raise (int signum)
 	printf("raise: Signal # %d caught\n", signum);
 	return 0;
 }
+
+/* Dummy function to avoid linker complaints */
+void __aeabi_unwind_cpp_pr0(void)
+{
+};
-- 
1.6.6.1

原文：http://blog.csdn.net/dddxxxx/article/details/47819809