Errors building GHC on iOS with LLVM >= 3.4

[Murray Campbell]

If this is indeed unfamiliar, should I file a new ticket?

Murray.

On Mon, Oct 6, 2014 at 4:59 PM, Murray Campbell <murray at sonology.net> wrote:
> On Sat, Oct 4, 2014 at 7:32 PM, Ben Gamari <bgamari.foss at gmail.com> wrote:
>> Murray Campbell <murray at sonology.net> writes:
>
> [snip]
>
>>> before bailing with
>>>
>>>     /var/folders/02/0mv6cz6505x2xhzlr279k2340000gp/T/ghc6860_0/ghc6860_6-armv7.s:3916:2:
>>>          error: out of range pc-relative fixup value
>>>                 vldr    d8, LCPI70_0
>>>                 ^
>>>
>>>     /var/folders/02/0mv6cz6505x2xhzlr279k2340000gp/T/ghc6860_0/ghc6860_6-armv7s.s:3916:2:
>>>          error: out of range pc-relative fixup value
>>>                 vldr    d8, LCPI70_0
>>>                 ^
>>>
>>> Next I tried to build HEAD (plus phabricator D208) with LLVM 3.4 but
>>> got the same error.
>>>
>> I've never seen an error of this form. What symbol definitions does this
>> error occur in?
>
> I have attached a gzipped version of the *-armv7.s file.  The one I
> attached is from a build with LLVM 3.5.  I had to apply D208 & D155 to
> get it to compile.  I also had to get the
> ghc-ios-scripts/arm-apple-darwin10-clang script to pick up the
> homebrew clang rather than the apple one to get around an 'unknown
> directive: .maosx_version_min' error.  However, the vldr error is
> identical to that with LLVM 3.4 building 7.8.3.
>
> I can get a straight 7.8.3 with LLVM 3.4 version if that would help.
>
> The error in the attached file is at line 5988 just below
> '_c3pb_info$def: '.  This is below
> '_integerzmsimple_GHCziIntegerziType_doubleFromPositive_info$def:'
>
> The last lines of build instructions before the error are:
>
> "inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf hc -static  -H64m
> -O0    -this-package-key integ_FpVba29yPwl8vdmOmO0xMS
> -hide-all-packages -i -ilibraries/integer-simple/.
> -ilibraries/integer-simple/dist-install/build
> -ilibraries/integer-simple/dist-install/build/autogen
> -Ilibraries/integer-simple/dist-install/build
> -Ilibraries/integer-simple/dist-install/build/autogen
> -Ilibraries/integer-simple/.    -optP-include
> -optPlibraries/integer-simple/dist-install/build/autogen/cabal_macros.h
> -package-key ghcpr_BE58KUgBe9ELCsPXiJ1Q2r -this-package-key
> integer-simple -Wall -XHaskell2010 -XCPP -XMagicHash -XBangPatterns
> -XUnboxedTuples -XUnliftedFFITypes -XNoImplicitPrelude -O -fllvm
> -no-user-package-db -rtsopts      -odir
> libraries/integer-simple/dist-install/build -hidir
> libraries/integer-simple/dist-install/build -stubdir
> libraries/integer-simple/dist-install/build   -c
> libraries/integer-simple/./GHC/Integer/Type.hs -o
> libraries/integer-simple/dist-install/build/GHC/Integer/Type.o
> You are using a new version of LLVM that hasn't been tested yet!
> We will try though...
>
> /var/folders/02/0mv6cz6505x2xhzlr279k2340000gp/T/ghc80302_0/ghc80302_6-armv7.s:5988:2:
>      error: out of range pc-relative fixup value
>             vldr    d8, LCPI102_0
>             ^
>
> /var/folders/02/0mv6cz6505x2xhzlr279k2340000gp/T/ghc80302_0/ghc80302_6-armv7s.s:5988:2:
>      error: out of range pc-relative fixup value
>             vldr    d8, LCPI102_0
>             ^