[GHC] #14889: ghc-HEAD broke cross-compilation on multiple tagets due to --via-asm switch

[GHC]

#14889: ghc-HEAD broke cross-compilation on multiple tagets due to --via-asm switch
-------------------------------------+-------------------------------------
        Reporter:  slyfox            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.5
      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 slyfox):

 More debugging:

 The command is:
 {{{
 $ "inplace/bin/hsc2hs" '--cc=sparc-unknown-linux-gnu-gcc' '--ld=sparc-
 unknown-linux-gnu-gcc'  --cross-safe  --cflag=-O2 --cflag=-pipe
 --cflag=-Wall --cflag=-fno-stack-protector   --cross-compile --via-asm
 --cflag=-Dsparc_HOST_ARCH --cflag=-Dlinux_HOST_OS
 --cflag=-D__GLASGOW_HASKELL__=805 '--cflag=-fno-stack-protector' '--
 cflag=-O2' '--cflag=-pipe' '--cflag=-Wall' '--cflag=-Ilibraries/ghci/dist-
 install/build/./autogen' '--cflag=-Ilibraries/ghci/.' '--cflag=-DGHCI' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/directory/.' '--cflag=-I/tmp/portage-
 tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/directory/dist-install/build/.' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/unix/include' '--cflag=-I/tmp
 /portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/unix/dist-install/build/include' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/unix/dist-install/build/include' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/unix/dist-install/build/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/time/lib/include' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/time/lib/dist-install/build/include'
 '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/time/dist-install/build/lib/include'
 '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/time/dist-install/build/lib/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/containers/include' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/containers/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/containers/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/containers/dist-
 install/build/dist-install/build/include' '--cflag=-I/tmp/portage-
 tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/bytestring/include' '--cflag=-I/tmp
 /portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/bytestring/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/bytestring/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/bytestring/dist-
 install/build/dist-install/build/include' '--cflag=-I/tmp/portage-
 tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/base/include' '--cflag=-I/tmp
 /portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/base/dist-install/build/include' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/base/dist-install/build/include' '--
 cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/base/dist-install/build/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/integer-gmp/include' '
 --cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/libraries/integer-gmp/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/integer-gmp/dist-
 install/build/include' '--cflag=-I/tmp/portage-tmpdir/portage/cross-sparc-
 unknown-linux-gnu/ghc-9999/work/ghc-9999/libraries/integer-gmp/dist-
 install/build/dist-install/build/include' '--cflag=-I/tmp/portage-
 tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/rts/dist/build' '--cflag=-I/tmp/portage-
 tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/includes' '--cflag=-I/tmp/portage-
 tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/includes/dist-derivedconstants/header' '--
 cflag=-Werror=unused-but-set-variable' '--cflag=-Wno-error=inline' '--
 lflag=-Wl,-O1' --cflag=-Ilibraries/ghci/dist-install/build/./autogen
 --cflag=-include --cflag=libraries/ghci/dist-
 install/build/./autogen/cabal_macros.h   libraries/ghci/./GHCi/FFI.hsc -o
 libraries/ghci/dist-install/build/GHCi/FFI.hs
 }}}

 Adding '''-k -v''':

 {{{
 ...
 libraries/ghci/GHCi/FFI.hsc:111 computing FFI_OK
     executing: sparc-unknown-linux-gnu-gcc -S -c libraries/ghci/dist-
 install/build/GHCi/FFI_hsc_test10.c -o libraries/ghci/dist-
 install/build/GHCi/FFI_hsc_test10.s ...
 }}}

 Generated files are:
 {{{
 // FFI_hsc_test10.c

 #include "/tmp/portage-tmpdir/portage/cross-sparc-unknown-linux-
 gnu/ghc-9999/work/ghc-9999/inplace/lib/template-hsc.h"
 #line 9 "FFI.hsc"
 #include <ffi.h>
 #line 71 "FFI.hsc"
 #if defined(mingw32_HOST_OS) && defined(i386_HOST_ARCH)
 #line 73 "FFI.hsc"
 #endif
 extern unsigned long long ___hsc2hs_BOM___;
 unsigned long long ___hsc2hs_BOM___ = 0x100000000;
 extern unsigned long long ___hsc2hs_int_test___hsc2hs_sign___;
 unsigned long long ___hsc2hs_int_test___hsc2hs_sign___ = (FFI_OK) < 0;
 extern unsigned long long ___hsc2hs_int_test;
 unsigned long long ___hsc2hs_int_test = (FFI_OK);
 #line 119 "FFI.hsc"
 #if defined(mingw32_HOST_OS) && defined(i386_HOST_ARCH)
 #line 122 "FFI.hsc"
 #endif
 }}}

 {{{
 ; FFI_hsc_test10.s
         .file   "FFI_hsc_test10.c"
         .global ___hsc2hs_int_test
         .section        ".bss"
         .align 8
         .type   ___hsc2hs_int_test, #object
         .size   ___hsc2hs_int_test, 8
 ___hsc2hs_int_test:
         .skip   8
         .global ___hsc2hs_int_test___hsc2hs_sign___
         .align 8
         .type   ___hsc2hs_int_test___hsc2hs_sign___, #object
         .size   ___hsc2hs_int_test___hsc2hs_sign___, 8
 ___hsc2hs_int_test___hsc2hs_sign___:
         .skip   8
         .global ___hsc2hs_BOM___
         .section        ".data"
         .align 8
         .type   ___hsc2hs_BOM___, #object
         .size   ___hsc2hs_BOM___, 8
 ___hsc2hs_BOM___:
         .long   1
         .long   0
         .ident  "GCC: (Gentoo 7.2.0-r1 p1.1) 7.2.0"
         .section        .note.GNU-stack,"", at progbits
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14889#comment:2>
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