[DynInst_API:] PatchFunction blocks() crash

[Donghai]

Hi,

I use a very simple program to test the first example of PatchAPI.

Unfortunately, the dyninst gets crash on this example. More

specifically, func->blocks() cause the system segment fault.

The code is pasted as follows, can someone give me some hint?

Thanks.


Best
Hai

ParseAPI::SymtabCodeSource *sts;
ParseAPI::CodeObject *co;
Address code_base = 0x8048000;

sts = new ParseAPI::SymtabCodeSource( argv[1] );
co = new ParseAPI::CodeObject( sts );

PatchObject *obj = PatchObject::create(co, code_base);

// Find all functions in the object
std::vector<PatchFunction*> all;
obj->funcs(back_inserter(all));

for (std::vector<PatchFunction*>::iterator fi = all.begin();
     fi != all.end(); fi++) {
  // Print out each function's name
  PatchFunction* func = *fi;
  std::cout << func->name() << std::endl;

  const PatchFunction::Blockset& blks = func->blocks();
  for (PatchFunction::BlockSet::iterator bi = blks.begin();
       bi != blks.end(); bi++) {
    // Print out each block's size
    PatchBlock* blk = *bi;
    std::cout << "\tBlock size:" << blk->size() << std::endl;
  }
}

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