Haskell LLVM绑定链接器错误

Question

update:

I'm now on LLVM 2.9 with binding llvm-0.9.1.2 running on ghc 7.0.4 and I'm down to just one of these errors:

/home/jfmiller28/.cabal/lib/llvm-0.9.1.2/ghc-7.0.4/libHSllvm-0.9.1.2.a(Scalar.o): In function `sm03_info':
(.text+0x24d): undefined reference to `LLVMAddLoopIndexSplitPass'
collect2: ld returned 1 exit status

---

I am getting the following linker error for the haskell LLVM bindings:

Linking llvm ...
/home/jfmiller28/.cabal/lib/llvm-0.9.0.1/ghc-6.12.3/libHSllvm-0.9.0.1.a(Core.o): In function `scZD_info':
(.text+0xf589): undefined reference to `LLVMBuildFNeg'
/home/jfmiller28/.cabal/lib/llvm-0.9.0.1/ghc-6.12.3/libHSllvm-0.9.0.1.a(Core.o): In function `sdRn_info':
(.text+0x114c5): undefined reference to `LLVMAddDestination'
/home/jfmiller28/.cabal/lib/llvm-0.9.0.1/ghc-6.12.3/libHSllvm-0.9.0.1.a(Core.o): In function `sdSb_info':
(.text+0x11545): undefined reference to `LLVMAddGlobalInAddressSpace'
...
collect2: ld returned 1 exit status

For ghc --make hello.hs :

module Main where

import Data.Word

import LLVM.Core
import LLVM.ExecutionEngine

bldGreet :: CodeGenModule (Function (IO ()))
bldGreet = withStringNul "Hello, JIT!" (\greetz -> do
    puts <- newNamedFunction ExternalLinkage "puts" :: TFunction (Ptr Word8 -> IO Word32)
    func <- createFunction ExternalLinkage $ do
      tmp <- getElementPtr0 greetz (0::Word32, ())
      _ <- call puts tmp -- Throw away return value.
      ret ()
    return func)

main :: IO ()
main = do
    initializeNativeTarget
    greet <- simpleFunction bldGreet
    -- greet

    return ()

LLVM was installed with apt-get to /usr/lib/llvm.

Answer 1

The answer to the original problem was that I have a version of LLVM that was too old. The the time of this writing you need LLVM 2.8 or newer.

The next problem had to do with an outdated line in the llvm bindings. The solution this time was to compile the llvm bindings from the git repository. Correct me if I am wrong, but I needed something newer the the public 0.9.1.2 release that cabal install llvm pulled down.

see https://github.com/bos/llvm/issues/2 and https://github.com/bos/llvm/pull/3

Answer 2

maybe this patch can make it run with LLVM 2.9 with binding llvm-0.9.1.2 running on ghc 7.0.4

diff -rupN llvm-0.9.1.2/LLVM/FFI/Transforms/Scalar.hsc llvm-0.9.1.2-modified/LLVM/FFI/Transforms/Scalar.hsc
--- llvm-0.9.1.2/LLVM/FFI/Transforms/Scalar.hsc 2011-05-20 02:20:56.000000000 +0800
+++ llvm-0.9.1.2-modified/LLVM/FFI/Transforms/Scalar.hsc    2011-06-20 20:59:27.455828891 +0800
@@ -30,8 +30,6 @@ foreign import ccall unsafe "LLVMAddLICM
     :: PassManagerRef -> IO ()
 foreign import ccall unsafe "LLVMAddLoopDeletionPass" addLoopDeletionPass
     :: PassManagerRef -> IO ()
-foreign import ccall unsafe "LLVMAddLoopIndexSplitPass" addLoopIndexSplitPass
-    :: PassManagerRef -> IO ()
 foreign import ccall unsafe "LLVMAddLoopRotatePass" addLoopRotatePass
     :: PassManagerRef -> IO ()
 foreign import ccall unsafe "LLVMAddLoopUnrollPass" addLoopUnrollPass
diff -rupN llvm-0.9.1.2/llvm.cabal llvm-0.9.1.2-modified/llvm.cabal
--- llvm-0.9.1.2/llvm.cabal 2011-05-20 02:20:56.000000000 +0800
+++ llvm-0.9.1.2-modified/llvm.cabal    2011-06-20 21:03:29.846828930 +0800
@@ -125,7 +125,6 @@ library
       LLVM.Target.MSP430
       LLVM.Target.Mips
       LLVM.Target.Native
-      LLVM.Target.PIC16
       LLVM.Target.PowerPC
       LLVM.Target.Sparc
       LLVM.Target.SystemZ