[GHC] #7608: LLVM only handles a hard-coded list of triples. (was: Triple not passed to LLVM when cross-compiling)

[GHC]

#7608: LLVM only handles a hard-coded list of triples.
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    Reporter:  singpolyma            |       Owner:                         
        Type:  bug                   |      Status:  new                    
    Priority:  normal                |   Milestone:                         
   Component:  Compiler (LLVM)       |     Version:  7.7                    
    Keywords:  cross-compiling llvm  |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple      |     Failure:  GHC doesn't work at all
  Difficulty:  Unknown               |    Testcase:                         
   Blockedby:                        |    Blocking:  7610                   
     Related:                        |  
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Old description:

> First found in http://www.haskell.org/pipermail/cvs-
> ghc/2012-December/079115.html
>
> When cross-compiling to a different architecture, LLVM is not informed
> what architecture we are building for, and so generates code for the host
> architecture instead.

New description:

 LLVM simply has a hard-coded list of triples for supported platforms in
 compiler/llvmGen/LlvmCodeGen/Ppr.hs :: moduleLayout.

 Apparently this information can potentially be sourced by configure /
 autotools instead. This may be a better way forward rather than adding
 code for each platform.

--

Comment(by dterei):

 Yes, I've been meaning to update this bug. Doing now.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7608#comment:6>
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