On Mon, 3 Dec 2001 19:42:15 -0500, Ghozlane Toumi <[EMAIL PROTECTED]> wrote: >How hard is the translation from 2.4 to 2.5 ? > >I happen to be using an alpha as my main computer, but i'm quite new to this >arch, so if the conversion doesn't require heavy guruness i guess i can >help.. if not, i can at least test ...
Download the kbuild 2.5 patches, including the ia64 and sparc patches. Read Documentation/kbuild/kbuild-2.5.txt under "Converting old kbuild Makefiles" and look at the arch specific patches for examples. I just had a quick look at arch/alpha makefiles. kernel/Makefile - no obvious conversion problems. asm_offsets moves to arch/alpha and is renamed to asm-offsets using the standard code. lib/Makefile - no obvious conversion problems. Some of the lib objects need uses_asm_offsets(), grep for asm_offset and change, see the sparc patches for nice examples. lib uses the technique of compiling one source several times with different options, that is a special case that breaks the dependency tree. In 2.5 you create small files which contain #define and #include lines, no special case, full dependency tracking, see ia64 patch for examples. math-emu/Makefile - should be easy. mm/Makefile - trivial. Makefile - split into Makefile.defs.config, Makefile.defs.noconfig, Makefile.in as for any otehr architecture. ia64 and sparc are good examples. boot/Makefile - boot is always the hardest to convert because every one is full of special cases, alpha is no exception. One of the rules for kbuild 2.5 is "build local, link global". Makefiles must not create objects in other directories, when you want to find out how an object is created you look at the Makefile.in in the same directory. alpha boot breaks that rule, it creates objects in the tools sub directory, the build of the tools must be moved to tools/Makefile.in. The bootloader build is converted using base_target() and select() rules, see arch/i386/boot/Makefile.in for examples. _______________________________________________ kbuild-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/kbuild-devel
