On 07/25/2018 07:16 AM, Paul Koning wrote:
Non-executable stacks are a very good thing.
That said, I also looked at the target hook documentation and was
left without any clue whatsoever. It sure isn't clear what powers of
two have to do with descriptors, or what descriptors have to do with
support for nested functions.
Can you suggest places to look to get an understanding of this
feature? It sounds like the only other option is "Use the source,
Luke". Any specific targets that make a good reference
implementation for this?
FYI, so far I have found PR ada/67205 and the original patch posting
here, but it looks like "Use the source" is indeed where we are on this.
:-(
https://gcc.gnu.org/ml/gcc-patches/2016-06/msg02016.html
-Sandra
