Messages in this thread | | | Date | Tue, 10 May 2005 16:55:44 +0200 | From | Erik Mouw <> | Subject | Re: kernel 2.6.x driver compiler options |
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On Tue, May 10, 2005 at 04:08:30PM +0800, KC wrote: > Instead of using Linux kconfig build system, can someone tell me > what's the compiler options used to build a device driver (.ko file) ?
That depends on the architecture (i386, x86_64, arm, ppc, etc.), compiler version (gcc 3.3, 3.4, 4.0, etc.), and kernel configuration (single CPU, SMP, preempt, regparms, etc.). Kbuild knows about all those things.
> Or, how can I integrate kconfig with GNU tool chain (automake, autoconf ...)
Create a file Makefile.kbuild with the usual stuff kbuild needs (see http://lwn.net/Articles/21823/ ). Then make an automake Makefile.am file like this:
all: $(MAKE) -f ${srcdir}/Makefile.kbuild -C ${KERNEL_DIR} \ M=${srcdir} O=${builddir} modules
Have configure.in AC_SUBST(KERNEL_DIR), and you should be set. I haven't tested this, but I think it should work.
Erik
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