[haskell-llvm] Make sure you include the correct TargetSelect.h and that InitializeAllTargetMCs() is being invoked!
lemming at henning-thielemann.de
Mon Apr 30 21:40:12 BST 2012
On Mon, 30 Apr 2012, Nathan Howell wrote:
> On Mon, Apr 30, 2012 at 12:07 PM, Henning Thielemann
> <lemming at henning-thielemann.de> wrote:
>> But it does not matter, I still get the following error, when running
>> Align_dyn.exe: LLVMTargetMachine.cpp:123:
>> llvm::LLVMTargetMachine::LLVMTargetMachine(const llvm::Target&,
>> llvm::StringRef, llvm::StringRef, llvm::StringRef, llvm::Reloc::Model,
>> llvm::CodeModel::Model): Assertion `AsmInfo && "MCAsmInfo not initialized."
>> "Make sure you include the correct TargetSelect.h" "and that
>> InitializeAllTargetMCs() is being invoked!"' failed.
> Set a breakpoint in gdb on LLVMInitializeNativeTarget and verify that
> it's stepping through the code in the #ifdef LLVM_NATIVE_TARGET block.
> If not, try rebuilding llvm with --enable-targets=host
It must have been a version shadowing problem. 'llvm' did not actually
import the newly created 'llvm-base'.
I do now understand that your #def in LLVM/FFI/Target.hsc is not a CPP
directive but a hsc2hs statement. However it seems that Cabal does not
automatically compile the generated LLVM/FFI/Target_hsc.c file. When
running Align_dyn.exe I got:
undefined reference to `hs_LLVMInitializeNativeTarget'
I have added dist/build/LLVM/FFI/Target_hsc.c to the C-Sources field
in llvm-base.cabal. Now ghc tries to compile it but fails with
In file included from /usr/local/llvm-3.0/include/llvm-c/Core.h:36,
error: #error "Must #define __STDC_CONSTANT_MACROS before " "#including Support/DataTypes.h"
Thus I moved in llvm-base.buildinfo.in the @llvm_cppflags@ from
cpp-options field to a new cc-options field. Now I can compile llvm-base
and I can successfully run the Align example.
However, adding the name of a temporary file (Target_hsc.c) with platform
specific path (dist/build) to the Cabal description does not look right.
Consequently, 'cabal sdist' warns about this problem.
Thank you for all your help, so far!
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