#4999: build fails on powerpc: error: 'ObjectCode' has no member named
'misalignment'
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Reporter: nomeata | Owner:
Type: bug | Status: new
Priority: high | Milestone: 7.2.1
Component: Runtime System | Version: 7.0.2
Resolution: | Keywords:
Testcase: | Blockedby:
Difficulty: | Os: Linux
Blocking: | Architecture: powerpc
Failure: Building GHC failed |
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Changes (by igloo):
* owner: igloo =>
* priority: highest => high
* status: patch => new
Comment:
OK, I took a look at the patch. It seems to me that a smaller fix for the
build problem would be to only add on `oc->misalignment` in
`ocFlushInstructionCache` on darwin. It may also be necessary to include
this part of the patch:
{{{
-#if defined(linux_HOST_OS ) || defined(freebsd_HOST_OS) || \
- defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS ) || \
- defined(openbsd_HOST_OS ) || \
- ( defined(darwin_HOST_OS ) && !defined(powerpc_HOST_ARCH) ) || \
- defined(kfreebsdgnu_HOST_OS)
-/* Don't use mmap on powerpc-apple-darwin as mmap doesn't support
+#if !defined(powerpc_HOST_ARCH) && \
+ ( defined(linux_HOST_OS ) || defined(freebsd_HOST_OS) || \
+ defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS ) || \
+ defined(openbsd_HOST_OS ) || defined(darwin_HOST_OS ) || \
+ defined(kfreebsdgnu_HOST_OS) )
+/* Don't use mmap on powerpc_HOST_ARCH as mmap doesn't support
}}}
I'm not sure if there are any other build problems, and I can't easily
test it, so I haven't made the change myself.
The other changes make PPC/Linux use `misalignment`, but then always set
`misalignment` to 0. I don't know what the deal is with
`machoGetMisalignment`; looking at the current code it looks like it is an
OS X thing rather than a PPC thing (e.g. it has a x86_64_HOST_ARCH ||
powerpc64_HOST_ARCH condition in it).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4999#comment:12>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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