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Message-ID: <CAEmqk_xeynyvn0PNje=5FZe9AZh+bAY0JJ7Go6YhDhLRiziOHg@mail.gmail.com>
Date: Mon, 6 Aug 2012 23:11:33 +0200
From: Kant <fnord.hammer@...il.com>
To: musl@...ts.openwall.com
Subject: Re: noexecstack
The glibc build is using this. clang also supports this.
Should be okay to use.
On 6 August 2012 13:32, Rich Felker <dalias@...ifal.cx> wrote:
> On Mon, Aug 06, 2012 at 01:19:19PM +0200, Szabolcs Nagy wrote:
>> * Rich Felker <dalias@...ifal.cx> [2012-08-06 05:37:42 -0400]:
>> > > ld -z noexecstack
>> > This should work for libc.so. Is there a way to do it for all the .o
>> > files in libc.a without having to add the option to every application,
>> > though?
>>
>> it seems gnu as has an undocumented --noexecstack flag for this
>>
>> gcc -Wa,--noexecstack -c foo.s
>>
>> adds the .notes.GNU-stack section
>
> So this seems to be the solution. I suspect it will need a configure
> check for the option being supported. Any other caveats?
>
> Rich
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