On Sat, Nov 1, 2014 at 3:36 PM, Jessica Hamilton wrote:

Hi,

I (and one other) am working on porting GHC to Haiku; we've successfully got a working GHC cross-compiler running on Haiku, and now are able to also build GHC on Haiku from the cross-compiler when using the "quickest" profile in the mk/build.mk file.

However, using the default build profile, we're running into a couple of issues.

1. A random segfault in ghc-stage1 (is probably an issue in Haiku, not entirely sure yet), with the following call stack: runCFinalizers + 0x3a runAllCFinalizers + 0x37 hs_exit_ +0x99 shutdownHaskellAndExit + 0x2f hs_main + 0xb1 .../ghc-7.8.3/inplace/lib/bin/ghc-stage1 + 0xc7b374 _start + 0x4b runtime_loader + 0x130

I can't really see anything obvious in the source code myself (although our debugger fails to enumerate the semaphores, and also needs to be killed). Restarting the build is sufficient to get past the issue, however.

2. A more pressing issue is with ghc-cabal. It fails with the error "resource exhausted" when running the following command: inplace/bin/ghc-cabal copy compiler stage2

This error is reproducible every time. I've tried setting up a profile build in the mk/build.mk file in order to get a stack trace from ghc-cabal; however, after rebuilding GHC from scratch, running ghc-cabal +RTS -xc, it still complains that the flag -xc requires the program to be built with -prof.

Some advice would be handy before diving into another couple hours of rebuilding GHC to try and get a profiled build of ghc-cabal out of the build system ;-)

Any progress?