[commit: ghc] ghc-8.0: Fix GHCi perf-llvm build on x86_64 (676efb9)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : ghc-8.0
Link       : http://ghc.haskell.org/trac/ghc/changeset/676efb9f00d14c7f4bad7160d270c1292dd9b436/ghc

>---------------------------------------------------------------

commit 676efb9f00d14c7f4bad7160d270c1292dd9b436
Author: Erik de Castro Lopo <erikd at mega-nerd.com>
Date:   Sun Aug 14 07:23:35 2016 +1000

    Fix GHCi perf-llvm build on x86_64
    
    With BuildFlavour set to `perf-llvm`, GHCi would fail as soon as it
    was run with:
    
      ghc-stage2: .../ghc-prim/dist-install/build/HSghc-prim-0.5.0.0.o:
      unknown symbol `__udivti3'
      ghc-stage2: unable to load package `ghc-prim-0.5.0.0'
    
    Fix this by adding `__udivti3` and `__umodti3` to RtsSymbols.c.
    
    Test Plan: Validate
    
    Reviewers: simonmar, austin, bgamari, Phyx, trofi
    
    Reviewed By: Phyx, trofi
    
    Subscribers: thomie
    
    Differential Revision: https://phabricator.haskell.org/D2449
    
    GHC Trac Issues: #11981
    
    (cherry picked from commit bd0c31063551744d00796219174739216c398da5)


>---------------------------------------------------------------

676efb9f00d14c7f4bad7160d270c1292dd9b436
 rts/RtsSymbols.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rts/RtsSymbols.c b/rts/RtsSymbols.c
index fdacae6..fec5cfc 100644
--- a/rts/RtsSymbols.c
+++ b/rts/RtsSymbols.c
@@ -868,6 +868,10 @@
       SymI_NeedsProto(__ashrdi3)                       \
       SymI_NeedsProto(__lshrdi3)                       \
       SymI_NeedsProto(__fixunsdfdi)
+#elif defined(__GNUC__) && SIZEOF_VOID_P == 8
+#define RTS_LIBGCC_SYMBOLS                             \
+      SymI_NeedsProto(__udivti3)                       \
+      SymI_NeedsProto(__umodti3)
 #else
 #define RTS_LIBGCC_SYMBOLS
 #endif