[cfe-dev] [llvm-dev] Your help needed: List of LLVM Open Projects 2017

[Sean Silva via cfe-dev]

Do we have any open projects on LLD?

I know we usually try to avoid any big "projects" and mainly add/fix things
in response to user needs, but just wondering if somebody has any ideas.

Some really generic/simple stuff I can think of:
1. trying out LLD on a large program corpus and reporting/reducing/fixing
bugs (e.g. contributing to the FreeBSD effort or trying to build a bunch of
packages from a linux distro like Debian or Gentoo)
2. performance analysis and optimization of LLD
3. getting LLD to link a bootable Linux kernel and/or GRUB
4. write an input verifier such that LLD can survive intensive fuzzing with
no crashes / fatal errors [1] when the verifier says the input is okay.
This will allow us to measure what the overhead of doing this actually is.


[1] As of the latest LLD discussion (in the thread "[llvm-dev] LLD status
update and performance chart") it sounds like people are okay with LLD
treating fatal errors the same way that LLVM uses assertions; for inputs
from the C++ API, we can document to not pass corrupted object files. For
inputs read from files, there is still community interest in at least
having the option to run a "verifier" to validate the inputs. I think the
best way to approach the verifier is to essentially follow the approach
suggested by Peter (in the context of "hardening") in
https://llvm.org/bugs/show_bug.cgi?id=30540#c5 i.e. getting to the point
where LLD can survive intensive fuzzing.

-- Sean Silva

On Mon, Jan 16, 2017 at 5:18 AM, Vassil Vassilev via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hi folks,
>
>   Happy new year!
>
>   Last LLVM Developers' Meeting I had a BoF: 'Raising Next Generation LLVM
> Developers'. It was suggested that we should update our open projects page
> and possibly restructure it a little bit.
>
>   I volunteered to do this work and I need your help.
>
>
>   Chandler and I started working on a google doc [1]. We pinged few code
> owners asking them to list of work items we should get done in 2017 but we
> do not have the manpower. Now we would like to ask for your input, too.
>
>   I believe an up to date list can serve as a good entry point for
> students, interns and new contributors.
>
>   Feel free to propose a new item or comment under an existing one. I
> expect to start gradually updating the page beginning of Feb.
>
> -- Vassil
>
> [1] https://docs.google.com/document/d/1YLK_xINSg1Ei0w8w39uAMR1n
> 0dlf6wrzfypiX0YDQBc/edit?usp=sharing
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>
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