linux内核编译错误：error: read-only variable '__r2' used as 'asm' output

linux内核编译错误：error: read-only variable '__r2' used as 'asm' output

内核版本：2.6.14

交叉编译器：arm-linux-gcc 4.3.3

错误：

arch/arm/mm/alignment.c: In function 'proc_alignment_write':
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
make[1]: *** [arch/arm/mm/alignment.o] 错误 1
make: *** [arch/arm/mm] 错误 2

解决办法：选择较低版本的交叉编译器，比如3.4.1。