[GHC] #14261: ghc stopped recognizing some arm triplets that used to work: Failed to lookup the datalayout for armv7a-hardfloat-linux-gnueabi; available targets:

[GHC]

#14261: ghc stopped recognizing some arm triplets that used to work: Failed to
lookup the datalayout for armv7a-hardfloat-linux-gnueabi; available
targets:
-------------------------------------+-------------------------------------
        Reporter:  slyfox            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by angerman):

 I believe the error message could be better :-(

 Targets are not hardcoded into GHC anymore, they are read from the `llvm-
 targets` file,
 at the top level. (It is also copied during install/...), which is read by
 ghc at runtime, and thus
 changes to it are directly reflected without recompilation.

 The `llvm-targets` file can be generated via the `utils/llvm-targets/gen-
 data-layout.sh` script.

 That being said, I am a bit confused about the `armv7a-hardfloat-linux-
 gnueabi` target. Shouldn't that be `armv7-unknown-linux-gnueabihf`? Should
 we use Autoconf triple canonicalization here?

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14261#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler