Date: Mon, 6 Aug 2012 07:32:30 -0400 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: Re: noexecstack 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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