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ocamlopt generates binaries with executable stacks
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Date: 2008-06-16 (12:59)
From: Xavier Leroy <Xavier.Leroy@i...>
Subject: Re: [Caml-list] ocamlopt generates binaries with executable stacks
> I posted a patch which should fix the issue that ocamlopt generates
> binaries with executable stacks:
>   http://caml.inria.fr/mantis/view.php?id=4564
> However this patch affects every assembly target, far more than I
> could possibly test.  Could people using OCaml on non-Linux platforms
> have a look at the patch, or even test it for me?

I'm pretty sure this patch is Linux-specific.  My fear is that it
might be specific to particular versions of binutils and/or particular
Linux distributions...  I smell a portability nightmare!

Note that in 3.11, the "configure" script will have options to specify
how to call the assembler (for ocamlopt-generated assembly code and
for the hand-written asm files in the runtime system).  So it might be
sufficient to configure the Gentoo packages with e.g.

configure -as "as --noexecstack" -aspp "gcc -c -Wa,--noexecstack"

This could be one of the rare cases where addressing the issue at the
level of the packages is safer than by changing the source distribution.

- Xavier Leroy