Messages in this thread | | | Date | Sat, 24 Jan 2004 10:17:04 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] arch/i386/Makefile,scripts/gcc-version.sh,Makefile small fixes |
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Serge Belyshev <33554432@mtu-net.ru> wrote: > > [This patch is against 2.6.2-rc1-mm2]
Is appreciated, thanks.
> arch/i386/Makefile: > * omitted $(KBUILD_SRC)/ in script call.
OK
> scripts/gcc-version.sh: > * GNU tail no longer supports 'tail -1' syntax.
OK.
> Makefile: > * There is no point in adding -funit-at-a-time option because it is > enabled by default at levels -Os, -O2 and -O3.
hm. Didn't Andi say that adding -fno-unit-at-a-time caused code shrinkage?
> * Consider adding -fweb option:
What does it do?
> vanilla: > $ size vmlinux > text data bss dec hex filename > 3056270 526780 386056 3969106 3c9052 vmlinux > > with -fweb: > $ size vmlinux > text data bss dec hex filename > 3049523 526780 386056 3962359 3c75f7 vmlinux > > Also note 0.1 ... 1.0% speedup in various benchmarks. > This option is not enabled by default at -O2 because it > (like -fomit-frame-pointer) makes debugging impossible.
OK, then we'd need a config option for it.
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