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torsdag 09 januari 2014 22.57.09 skrev Pacho Ramos: |
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> El jue, 09-01-2014 a las 21:58 +0100, Magnus Granberg escribió: |
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> > Hi |
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> > |
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> > Some time ago we discussed that we should enable stack smashing |
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> > (-fstack-protector) by default. So we opened a bug to track this [1]. |
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> > The affected Gcc version will be 4.8.2 and newer. Only amd64, x86, mips, |
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> > ppc, ppc64 and arm will be affected by this change. |
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> > |
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> > You can turn off ssp by using the nossp USE flag or by adding |
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> > -fno-stack-protector to the CFLAGS and/or CXXFLAGS. We are using the same |
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> > patch as Debian/Ubuntu but with some Gentoo fixes. |
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> > |
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> > The patch will move the sed for the HARD_CFLAGS, ALLCFLAGS and |
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> > ALLCXXFLAGS from do_gcc_PIE_patches() to make_gcc_hard(). We will |
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> > make_gcc_hard() the default for all Gcc versions 4.8 and newer, and turn |
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> > it on or off with hardened_gcc_works() that will make some sanity checks. |
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> > |
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> > /Magnus |
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> |
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> What are the advantages of disabling SSP to deserve that "special" |
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> handling via USE flag or easily disabling it appending the flag? |
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> |
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> Thanks a lot for the info :) |
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|
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If you want Gcc not to build stuff with ssp as default you turn on the nossp |
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flag and rebuild Gcc. |
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|
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/Magnus |
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