2008/10/29 Henrik Austad <henrik@xxxxxxxxx>: > On Wednesday 29 October 2008 14:10:33 loody wrote: >> Dear all: >> I try to build a kernel with -O and I try to modify below lines in >> Makefile: >> >> ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE >> KBUILD_CFLAGS += -O >> else >> KBUILD_CFLAGS += -O >> endif > > With -O, the compiler tries to reduce code size and execution time, without > performing any optimizations that take a great deal of compilation time. > > As to why this fails, I don't know. When I change my Makefile to reflect > yours, and run a build with defconfig, It compiles without errors > > Which version are you using? (I use git head, e946217e4f) Hi: thanks for your kind help. Actually I try to cross-compiling kernel for my arm platform. I use uClinux-dist-20080808.tar.bz2 and my toolchain is arm-linux-tools-20061213.tar.gz I didn't do the same thing on compiling non-uclinux. I will try it and update any progress. Sincerely Yours, miloody -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
