[FUG-BR] Uso do CPUTYPE no make.conf

[Mario Lobo]

On Tue, 8 Dec 2015 16:14:19 -0200
Tiago Ribeiro <shasty em gmail.com> wrote:

> Olá, alguém ai ainda utiliza do parâmetro CPUTYPE no /etc/make.conf ,
> ou está em desuso ?
> Faz algum sentido ainda definir este parâmetro?
> 
> 
> —
> http://www.bsdjf.com.br
> 
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Eu sempre faço os seguintes testes:

gcc48 -march=native -v -c -x c /dev/null 2>&1 | grep -- -march

Resultado:

/usr/local/libexec/gcc48/gcc/x86_64-portbld-freebsd10.0/4.8.4/cc1
 -quiet -v /dev/null 
---------------
-march=bdver2 
--------------
-mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mabm -mlwp -mfma
 -mfma4 -mxop -mbmi -mno-bmi2 -mtbm -mavx -mno-avx2 -msse4.2 -msse4.1
 -mlzcnt -mno-rtm -mno-hle -mno-rdrnd -mf16c -mno-fsgsbase -mno-rdseed
 -mprfchw -mno-adx -mfxsr -mxsave -mno-xsaveopt --param
 l1-cache-size=16 --param l1-cache-line-size=64 --param
 l2-cache-size=2048 -mtune=bdver2 -quiet -dumpbase null -auxbase null
 -version -o /tmp//ccIyljMS.s COLLECT_GCC_OPTIONS='-march=native' '-v'
 '-c' COLLECT_GCC_OPTIONS='-march=native' '-v' '-c'

clang -march=native -v -c -x c /dev/null 2>&1 | grep -- target-cpu

Resultado:

"/usr/bin/clang" -cc1 -triple x86_64-unknown-freebsd10.2 -emit-obj
-mrelax-all -disable-free -disable-llvm-verifier -main-file-name null
-mrelocation-model static -mdisable-fp-elim -masm-verbose
-mconstructor-aliases -munwind-tables 
------------------ 
-target-cpu bdver1 
------------------ 
-v -coverage-file /root/null.o
-resource-dir /usr/bin/../lib/clang/3.4.1 -fdebug-compilation-dir /root
-ferror-limit 19 -fmessage-length 0 -mstackrealign
-fobjc-runtime=gnustep -fdiagnostics-show-option -vectorize-slp -o
null.o -x c /dev/null

Escolho o "menor" e coloco no make.conf

-- 
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since 2.2.8 [not Pro-Audio.... YET!!]
 
"UNIX was not designed to stop you from doing stupid things, 
because that would also stop you from doing clever things."