[LLVMdev] Problem of use CallGraph

[Welson Sun]

This is what you need:

#include "llvm/InitializePasses.h"

  PassRegistry &Registry = *PassRegistry::getPassRegistry();
  initializeBasicCallGraphPass(Registry);


-Welson

On Fri, Aug 17, 2012 at 1:36 AM, Hongbin Zheng <etherzhhb at gmail.com> wrote:

> On Fri, Aug 17, 2012 at 4:23 PM, Jianfei Hu <hujianfei258 at gmail.com>
> wrote:
> > Hello,
> >        I want to  traverse CallGraph
> >
> > code segment:
> >
> >
> >                 virtual void getAnalysisUsage(AnalysisUsage &AU) const
> >                 {
> >                         AU.addRequired<CallGraph>();
> >                 }
> >
> >                 virtual bool runOnModule(Module &F)
> >                 {
> >                         CallGraph &g = getAnalysis<CallGraph>();
> >                         for ( CallGraph::iterator i = g.begin(); i !=
> g.end(); i++)
> >                         {
> >                                 errs()<<"-----------------\n";
> You may try something like this:
>                                    if (CallGraphNode *CGN = i->second)
>                                       ... CGN->getFunction()->getName() ...
> >
> errs()<<i->second->getFunction()->getName()<<"\n";
> >                         }
> >                         return false;
> >                 }
> >
> > Compile:
> > g++ -fPIC -shared `llvm-config --cxxflags` -o MPIAnalysis.so
> MPIAnalysis.cpp,
> >
> > when I use following command to run:
> > opt -load ./MPIAnalysis.so  -hello < main
> > it shows the error:
> >
> > -----------------
> > 0  opt 0x085cddc8
> > Stack dump:
> > 0.      Program arguments: opt -load ./MPIAnalysis.so -hello
> > 1.      Running pass 'Hello World Pass' on module '<stdin>'.
> > Segmentation Error
> >
> > I found similar Problem in
> > http://lists.cs.uiuc.edu/pipermail/llvmdev/2010-July/033133.html
> > But all function are defined in single binary IR file 'main', none of
> > them are external.
> >
> > Why could not print the name of CallGraphNode's function name?
> > _______________________________________________
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-- 
Welson

Phone: (408) 418-8385
Email:  welson.sun at gmail.com
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