On Thu, 2018-07-05 at 14:30 -0700, Randy Dunlap wrote: > Hi, > > Is there a good way (or a shortcut) to do something like: > > $ make ARCH=powerpc O=PPC32 [other_options] allmodconfig > to get a PPC32/32BIT allmodconfig > > and also be able to do: > > $make ARCH=powerpc O=PPC64 [other_options] allmodconfig > to get a PPC64/64BIT allmodconfig? Hrm... O= is for the separate build dir, so there much be something else. You mean having ARCH= aliases like ppc/ppc32 and ppc64 ? That would be a matter of overriding some .config defaults I suppose, I don't know how this is done on other archs. I see the aliasing trick in the Makefile but that's about it. > Note that arch/x86, arch/sh, and arch/sparc have ways to do > some flavor(s) of this (from Documentation/kbuild/kbuild.txt; > sh and sparc based on a recent "fix" patch from me): I fail to see what you are actually talking about here ... sorry. Do you have concrete examples on x86 or sparc ? From what I can tell the "i386" or "sparc32/sparc64" aliases just change SRCARCH in Makefile and 32 vs 64-bit is just a Kconfig option... > x86: i386 for 32 bit, x86_64 for 64 bit > sh: sh for 32 bit, sh64 for 64 bit > sparc: sparc32 for 32 bit, sparc64 for 64 bit -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
