torsdag 09 januari 2014 23.18.28 skrev Ryan Hill: > On Thu, 09 Jan 2014 21:58:46 +0100 > > Magnus Granberg <zo...@gentoo.org> wrote: > > Some time ago we discussed that we should enable stack smashing > > (-fstack-protector) by default. So we opened a bug to track this [1]. > > The affected Gcc version will be 4.8.2 and newer. Only amd64, x86, mips, > > ppc, ppc64 and arm will be affected by this change. > > > > You can turn off ssp by using the nossp USE flag or by adding > > -fno-stack-protector to the CFLAGS and/or CXXFLAGS. We are using the same > > patch as Debian/Ubuntu but with some Gentoo fixes. > > > > The patch will move the sed for the HARD_CFLAGS, ALLCFLAGS and > > ALLCXXFLAGS from do_gcc_PIE_patches() to make_gcc_hard(). We will > > make_gcc_hard() the default for all Gcc versions 4.8 and newer, and turn > > it on or off with hardened_gcc_works() that will make some sanity checks. > > I went ahead and spun a new patchset for the compiler-side stuff if anyone > wants to start playing around. > > - apply the eclass patch from bug #484714 (the one attached to Magnus' email > wouldn't apply for me but maybe my mailer mangled it) > - in gcc-4.8.2.ebuild do: > > -PATCH_VER="1.3" > +PATCH_VER="1.4-ssptest" > > -PIE_VER="0.5.8" > +PIE_VER="0.5.9-ssptest" > > BTW Magnus, thanks for doing this. Hi Have patched toolchain.eclass with the patch and with your change. Updated 4.8.2 updated with the needed changes and commit it. The use hardened && gcc-specs-ssp && append-cflags $(test-flags-CC -fno-stack- protector) in glibc's common.eblit is fixed to. So default ssp is out in the tree :) /Magnus
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