#709: "Fixup too large" error with -fasm on PowerPC
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Reporter: simonmar | Owner:
Type: bug | Status: patch
Priority: low | Milestone: 6.8.1
Component: Compiler (NCG) | Version: 7.7
Resolution: | Keywords:
Os: Unknown/Multiple | Architecture: powerpc
Failure: Building GHC failed | Difficulty: Moderate (less than a day)
Testcase: | Blockedby:
Blocking: | Related:
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Comment(by PHO):
Replying to [comment:9 simonmar]:
> Hmm, this is an unpleasant bit of code :-) hardcoded constants and
guesses everywhere.
It is unpleasant indeed. My patch makes a dirty hack even dirtier :(
> Could we not use something better than a hardcoded "5" for the info
table size? We know the size of the info table for a continuation:
`sizeof(StgRetInfoTable)`, and add to that the maximum offset due to
alignment.
The size of `StgRetInfoTable` varies depending on the "way" (e.g. -prof)
so we can't simply grab it from the C compiler. I think it's easy to
calculate the size of each tables represented as `CmmStatics`.
> You could also do better than `length blocks`: the actual number of info
tables is available.
Right, but since info tables are scattered around a proc, I couldn't
simply replace {{{length blocks}}} with the actual number of tables.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/709#comment:10>
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