Am 27.07.2011, 03:51 Uhr, schrieb Walter Bright
<[email protected]>:
On 7/26/2011 6:45 PM, Marco Leise wrote:
I'm not into the details of ELF and object file stacks, but Gentoo
Linux gives
me some QA warnings about executable writable sections. A Gentoo hacker
helped
me by writing a patch to dmd and the security warnings are now gone.
See http://d.puremagic.com/issues/show_bug.cgi?id=6387 for details.
I posted here to shed some light on the issue. GNU C closures need an
executable
stack, but D doesn't. Would there be any other feature that require
executable
stacks?
Not at the moment.
Thank you for the info. That means when compiling the source this is a
valid patch.
If yes, then an option to disable these features and make the stacks
non-executable would help. And why is it anyway that each object file
has a
stack of it's own? I thought stacks were a per-thread thing?
Object files don't have their own stacks. I don't know what you're
referring to.
I was wondering why scanelf was printing out lines for every object file
in the libraries and read sentences like "Sure enough, these objects lack
the .note.GNU-stack ELF section and they are linked into the final
libsmpeg.so library." That made me assume that each object file can have
this section and thus must have an own stack.
Anyway me and Andrei wanted to at least notify you about this and that's
done now. It seemed somewhat me, like when an old lady sees a fake website
pop-up a virus warning.
