Yes, you are so experience when compiling packages Gcc so kute for programmer like me
2011/9/14 John Frankish <j-frank...@slb.com> > > Ref > http://www.linuxfromscratch.org/lfs/view/development/chapter06/gcc.html > > Just an observation, but compiling gcc-4.6.1 like this, i.e. with > "-fomit-frame-pointer" results in a gcc which produces compiled output > +/-15% larger (after stripping) than using gcc compiled without > "-fomit-frame-pointer" when compiling with CFLAGS="-march=i486 -mtune=i686 > -Os -pipe" > > Note that (per gcc docs) as from gcc-4.6.x, using the optimization -Ox > (i.e. -Os, -O2, etc) automatically causes "-fomit-frame-pointer" to be used > and the ./configure switch "--enable-frame-pointer" is required to reverse > this. > > I don't know if "-fomit-frame-pointer" produces compiled output that is > more efficient (i.e. runs more quickly), but a +/-15% size increase is > significant - even the gcc compiled by a gcc without "-fomit-frame-pointer" > will be significantly smaller... > > Regards > John > -- > http://linuxfromscratch.org/mailman/listinfo/lfs-dev > FAQ: http://www.linuxfromscratch.org/faq/ > Unsubscribe: See the above information page >
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