On Thu, 9 Jan 2014 17:30:46 -0600 Ryan Hill <dirtye...@gentoo.org> wrote:
> On Thu, 09 Jan 2014 17:29:26 -0500 > "Rick \"Zero_Chaos\" Farina" <zeroch...@gentoo.org> wrote: > > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > On 01/09/2014 05:21 PM, Michał Górny wrote: > > > Dnia 2014-01-09, o godz. 17:06:52 > > > "Anthony G. Basile" <bluen...@gentoo.org> napisał(a): > > > > > >> On 01/09/2014 04:57 PM, Pacho Ramos wrote: > > >>> What are the advantages of disabling SSP to deserve that "special" > > >>> handling via USE flag or easily disabling it appending the flag? > > >> > > >> There are some cases where ssp could break things. I know of once case > > >> right now, but its somewhat exotic. Also, sometimes we *want* to break > > >> things for testing. I'm thinking here of instance where we want to test > > >> a pax hardened kernel to see if it catches abuses of memory which would > > >> otherwise be caught by executables emitted from a hardened toolchain. > > >> Take a look at the app-admin/paxtest suite. > > > > > > Just to be clear, are we talking about potential system-wide breakage > > > or single, specific packages being broken by SSP? In other words, are > > > there cases when people will really want to disable SSP completely? > > > > > > Unless I'm misunderstanding something, your examples sound like you > > > just want -fno-stack-protector per-package. I don't really think you > > > actually want to rebuild whole gcc just to do some testing on a single > > > package... > > > > > Or just as easily set -fno-stack-protector in CFLAGS in make.conf. > > > > I never felt manipulating cflags with use flags was a great idea, but in > > this case is does feel extra pointless. > > > > Personally I don't feel this is needed, and the added benefit of > > clearing up a bogus "noblah" use flag makes me smile. > > > > Zorry, do we really need this flag? > > Yes, we do. I want a way to disable it at a toolchain level. Let me clarify. I would like to be able to disable it without relying on CFLAGS or anything the user could fiddle with. I need a big red off switch, at least for now. -- Ryan Hill psn: dirtyepic_sk gcc-porting/toolchain/wxwidgets @ gentoo.org 47C3 6D62 4864 0E49 8E9E 7F92 ED38 BD49 957A 8463
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