[LLVMdev] LLD input graph handling proposal

[Joerg Sonnenberger]

On Fri, Sep 20, 2013 at 04:39:04PM -0700, Rui Ueyama wrote:
> I don't want to make Resolver to have a reference to input graph. The point
> of this proposal is to separate input graph handling from Resolver and
> instead making Linker Context to do that task.

That was the part of the original proposal I didn't agree with and I
still don't do. While the resolver shouldn't have to deal with the
details of the command line, it certainly should know about the input
graph. I wouldn't be surprised if it can make a significant difference
for group processing whether a DFS or BFS is applied, even if the result
doesn't change. There are other concerns like the recursive processing
of DT_NEEDED for ELF and the resulting implications for symbol
resolution and locking.

Joerg