Messages in this thread | | | Subject | Re: i386 -> x86_64 cross compile failure (binutils bug?) | From | Lee Revell <> | Date | Fri, 09 Dec 2005 15:58:26 -0500 |
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On Fri, 2005-12-09 at 15:41 -0500, Kyle McMartin wrote: > On Fri, Dec 09, 2005 at 03:21:16PM -0500, Lee Revell wrote: > > I tried with CROSS_COMPILE="/usr/x86_64/bin/x86_64-linux-", but edited > > the Makefile to set CC to /use/bin/gcc. Same error. > > > > Ah. I didn't realize when it says "AS foo.o" it really means it's running > CC, not AS. (I had also built a cross compiling gcc, but didn't realize it > was being used). >
Yes, I noticed that, when I set KBUILD_VERBOSE, I can see that it just invokes CC and passes -D__ASSEMBLY__.
So what is setting AS in the Makefile good for then? And how can I force the build process to use /usr/x86_64/bin/x86_64-linux-as rather than /usr/bin/as?
Also, isn't it a bug for the Makefile not to pass -m64 if I specify ARCH=x86_64? If I don't change the CFLAGS I get:
$ make ARCH=x86_64 CHK include/linux/version.h CC arch/x86_64/kernel/asm-offsets.s arch/x86_64/kernel/asm-offsets.c:1: error: code model 'kernel' not supported in the 32 bit mode make[1]: *** [arch/x86_64/kernel/asm-offsets.s] Error 1 make: *** [prepare0] Error 2
Lee
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