llvm dev - Feb 2011 - [LLVMdev] Please add .o writer example to next release

Hi!

Is it possible that you add an example how to write a .o with llvm?
Just like examples/ModuleMaker but instead of printing to stdout
writing a .o file as starting point for the new MC functionality.

-Jochen

Jochen Wilhelmy <j.wilhelmy at arcor.de> writes:
> Is it possible that you add an example how to write a .o with llvm?
+1

this is function I use to emit an object file:

void output_object (llvm::Module * Module, llvm::TargetMachine * Target,
llvm::raw_ostream & Output)
{
    llvm::formatted_raw_ostream fOutput (Output);

    FunctionPassManager Passes(Module);

    Passes.add(new TargetData (*Target->getTargetData()));

    if (Target->addPassesToEmitFile(Passes, fOutput,
llvm::TargetMachine::CGFT_ObjectFile, llvm::CodeGenOpt::None))
        throw std::runtime_error ("bad voodoo
(Target->addPassesToEmitFile)");

    Passes.doInitialization();

    for (llvm::Module::iterator I = Module->begin(), E = Module->end(); I
!E; ++I)
        if (!I->isDeclaration())
            Passes.run(*I);

    Passes.doFinalization();
}


On Fri, Feb 18, 2011 at 8:33 AM, Óscar Fuentes <ofv at wanadoo.es> wrote:
> Jochen Wilhelmy <j.wilhelmy at arcor.de> writes:
>
> > Is it possible that you add an example how to write a .o with llvm?
>
> +1
>
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