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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This archive was generated by hypermail 2b29 : Sun Apr 07 2002 - 22:00:20 EST