From mint-bounce@lists.fishpool.fi Sun Apr 11 12:02:43 2010 X-Virus-Scanned: amavisd-new at demon.co.uk Subject: Re: [MiNT] binutils ld enhancement ? From: Alan Hourihane To: Vincent =?ISO-8859-1?Q?Rivi=E8re?= Cc: mint@lists.fishpool.fi In-Reply-To: <4BC1948B.9020704@freesbee.fr> References: <1270933424.10459.3.camel@jetpack.demon.co.uk> <4BC1948B.9020704@freesbee.fr> Content-Type: text/plain; charset="ISO-8859-1" Date: Sun, 11 Apr 2010 16:59:55 +0100 Message-Id: <1271001595.16679.1.camel@jetpack.demon.co.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.26.3 X-ecartis-version: Ecartis v1.0.0 Sender: mint-bounce@lists.fishpool.fi Errors-to: mint-bounce@lists.fishpool.fi X-original-sender: alanh@fairlite.co.uk Precedence: bulk List-help: List-unsubscribe: List-Id: X-List-ID: List-subscribe: List-owner: List-post: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.sparemint.org id o3BG2hXS022286 On Sun, 2010-04-11 at 11:21 +0200, Vincent Rivière wrote: > Alan Hourihane wrote: > > Now, I know we have the --stack option to the linker, but that means > > modifying the build files to add that and it's non-portable. So I'm > > wondering if 'ld' can read this value from some pre-configured place, > > like an /etc/xxx file or maybe /proc/xxx to find out what the current > > stack size should be set to on compilations which would mean no changes > > to the build files ? What do you think ? > > I understand the problem. When building MiNT software, setting a correct > stack size is an absolute requirement. And the standard makefiles are not > aware of that. I guess this is especially a problem for Gentoo, where > standard source packages should be downloaded and compiled transparently. > > However, I don't know the best way to do that. Certainly, as you proposed in > your other message, a specific environment variable used by the linker would > be simple and efficient. But it would be very nonstandard. Maybe the > binutils has some way to provide default options, I don't know. > Or maybe Gentoo is flexible enough to customize makefiles ? > Or maybe configure, with something like the file config.site ? > > My feeling is that we should see how this kind of problem is solved on other > platforms before adding a new functionality inside the linker. Which other platforms have our stack issues ? It's not really new functionality either. It's just setting the --stack option but from an ENV var instead. > > Also, the ld --help output says that stack is set by --stack > > where it should say "--stack= > Oh, I didn't notice, but both syntaxes work. > In the --help message, I have used the same syntax as the --stack option > specific to the Win32 linker, described in "man ld". For me, -Wl,--stack 512k did not work, I had to use -Wl,--stack=512k > So I think it is correct like this (but the usage of = should be consistent > among all options). Alan.