Date: Wed, 24 Mar 2010 22:58:05 +0000 From: Mario Lobo <lobo@bsd.com.br> To: FreeBSD-Questions@freebsd.org Subject: Compiling kernel with gcc43 Message-ID: <201003242258.05830.lobo@bsd.com.br>
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Hi; I followed the instructions from http://www.freebsd.org/doc/en/articles/custom-gcc/article.html to see if I can achieve some performance gain (8-STABLE r205630 amd64) and also get a more modern instruction set for my Phenom II (amdfam10), so I've done the following config settings: make.conf .if !empty(.CURDIR:M/usr/ports/*) && exists(/usr/local/bin/gcc43) CC=/usr/local/bin/gcc43 CXX=/usr/local/bin/g++43 CPP=/usr/local/bin/cpp43 CFLAGS+=-mssse3 CPUTYPE=amdfam10 .endif libmap.conf libgcc_s.so.1 gcc43/libgcc_s.so.1 libgomp.so.1 gcc43/libgomp.so.1 libobjc.so.3 gcc43/libobjc.so.2 libssp.so.0 gcc43/libssp.so.0 libstdc++.so.6 gcc43/libstdc++.so.6 buildworld goes on normally it seems, but when I tried to build the kernel, the first stop came from the option used by the kernel build "-fformat- extensions", which is not accepted by gcc43, so I took it out of /usr/src/sys/conf/kern.mk, the ONLY place I found it. It seemed to solve the problem until gcc43 stopped because of the "-Werror" option, which is all over the place!. Funny that gcc42 (used by default) doesn't stop because of this option. Anyway,my question boils down to: Is there a way to build the kernel with gcc43, with minimal tweaking? Am i attempting something out of my league? Thanks, -- Mario Lobo http://www.mallavoodoo.com.br FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!] (99,7% winfoes FREE)
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