Don Stewart wrote:
marlowsd:
Hi Folks,
6.8.3 is nearing release, and we have an outstanding bug affecting the GHCi on the BSDs:
http://hackage.haskell.org/trac/ghc/ticket/2013
We need someone to help out with this. The patch in the ticket apparently works, but can't be committed as is because it isn't correctly #ifdef'd and will presumably break other platforms. Also it needs to be tested on OpenBSD/NetBSD in addition to FreeBSD.
I don't have access to a *BSD machine right now, and I don't have the time available to set one up. If someone can donate a temporary account then that would be helpful, but most helpful would be if someone could work with us to get this bug fixed in time for 6.8.3 (i.e. the next few days). Otherwise, we have to release with the bug still in, which would be bad.
So, try the patch to get the patch to compile against ghc 6.8.3-snapshot, and see if it works on OpenBSD?
It's not just a case of testing the patch, there are a couple of issues to address: - it has a couple of wired-in addresses: one place to load object files, another to put jump tables at. This is necessary because *BSD doesn't have the MAP_32BIT flag for mmap(). However, the particular wired-in addresses needed will probably vary on the different *BSDs. Someone needs to look at the memory map and make sure we're picking sensible addresses. - the patch doesn't #ifdef its changes, so it'll break other platforms (easy to fix). Also the code has changed in HEAD, and we need a completely different patch there (although the same idea applies, pick an address and use MAP_FIXED). Cheers, Simon