Messages in this thread | | | From | Keith Owens <> | Subject | Re: Announce: Kernel Build for 2.5, Release 2.0 is available | Date | Mon, 08 Apr 2002 00:28:32 +1000 |
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On Sun, 07 Apr 2002 16:18:12 +0200, Roman Zippel <zippel@linux-m68k.org> wrote: >Keith Owens wrote: > >> kbuild 2.5: >> make -j8 oldconfig installable 8:51 (no make dep needed :) >> make -j8 oldconfig installable :14 (second run, no changes) > >These 14 seconds (or 37 seconds on my machine) are always needed >whatever I try, e.g. "make foo/bar.o" also needs that time.
make NO_MAKEFILE_GEN=1 foo/bar.o. Very low overhead for quick and dirty testing of changes, but if you want an accurate kernel build, you have to take the overhead. kbuild 2.4 overhead for a full build when only minor changes have been made is even worse.
>Some other problems: >"make foo/bar.[si]" doesn't work anymore.
Hmm, that was working, I will investigate.
>"touch include/linux/mm.h" doesn't cause a recompile of any object.
I have found some cases where the timestamps are not tracked correctly so changes to dependencies are not always detected. Fixed in build-2.5-core-2, out tomorrow.
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