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Samir Mishra wrote: |
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> Fernando Boaglio wrote: |
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>> Hi there! |
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>> |
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>> I was told with gcc 4.1 you can't play with some CFLAGS because you |
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>> will really break your system (more dangerous than gcc 3.x ! ). |
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>> |
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>> Have you tried "emerge -e system" with GCC + some uncommon flag? |
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>> |
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>> Can you share your CFLAGS with us ? |
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>> |
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>> TIA! |
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>> []'s |
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>> boaglio@×××××.com |
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> |
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> These are the flag settings I have. My WS has >2GB RAM so I'm using |
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> -mcmodel=medium. But as you can see, they are hardly "safe". |
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> |
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> Of the list below, the LDFLAGS -Wl,-Bdirect -Wl,-hashvals is supposed to |
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> make the biggest difference. I have no means of comparison. |
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> |
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> A few applications fail to compile, but so far from the >500 packages I |
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> currently have on my system, only the following have failed to compile |
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> -- glibc-2.4, gcc, sandbox, strace, transcode, libmpeg3. A few other |
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> applications, mainly noticed with audio applications, are behaving |
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> "strange". But I haven't had the opportunity to track all these problems |
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> down. |
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> |
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> # For GCC 4+ |
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> CFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer -fforce-addr -ftracer |
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> -frename-registers -mno-tls-direct-seg-refs -mcmodel=medium" |
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> CXXFLAGS="${CFLAGS} -fvisibility-inlines-hidden" |
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> LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--enable-new-dtags -Wl,-Bdirect |
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> -Wl,-hashvals -Wl,-zdynsort -s" |
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> |
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> # For GCC -- 3.4.5 |
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> #CFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer -fforce-addr -ftracer |
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> -frename-registers" |
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> #CXXFLAGS="${CFLAGS} -fvisibility-inlines-hidden" |
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> #LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--enable-new-dtags -Wl,-zdynsort |
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> -s" |
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> |
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> # For minimal variable definitions |
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> #CFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer" |
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> #CXXFLAGS="${CFLAGS}" |
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> #LDFLAGS="-Wl,-O1" |
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> |
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> |
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> Samir |
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I see you have some ldflags listed. Where can a person find information |
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on these. I've tried to google around about them and haven't had much |
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luck trying to figure it out. |
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|
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BTW my cflags are: |
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CFLAGS="-march=k8 -Os -pipe -fomit-frame-pointer -frename-registers |
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- -funit-at-a-time -fweb -freorder-blocks -freorder-blocks-and-partition |
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- -ftree-pre -fmerge-all-constants" |
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CXXFLAGS="-march=k8 -Os -pipe -fomit-frame-pointer -frename-registers |
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- -funit-at-a-time -fweb -freorder-blocks -ftree-pre -fmerge-all-constants" |
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|
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Duncan mentioned these a while ago and I used them with no problems. |
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But I was curious about ldflags if anybody has pointers. |
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- -- |
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|
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Kirby Walborn |
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=Wx6x |
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-- |
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