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// -*- C++ -*-
// Copyright (C) 2008-2009 Red Hat Inc.
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.

#include "dwarf_wrappers.h"
#include "staptree.h"

#include <cstring>
#include <string>
#include <elfutils/libdwfl.h>
#include <dwarf.h>

using std::string;

void dwfl_assert(const string& desc, int rc)
{
  if (rc == 0)
    return;
  string msg = "libdwfl failure (" + desc + "): ";
  if (rc < 0)
    msg += (dwfl_errmsg (rc) ?: "?");
  else
    msg += std::strerror (rc);
  throw semantic_error (msg);
}

void dwarf_assert(const string& desc, int rc)
{
  if (rc == 0)
    return;
  string msg = "libdw failure (" + desc + "): ";
  if (rc < 0)
    msg += dwarf_errmsg (rc);
  else
    msg += std::strerror (rc);
  throw semantic_error (msg);
}

void dwfl_assert(const std::string& desc, bool condition)
{
    if (!condition)
        dwfl_assert(desc, -1);
}


// Helper for dealing with selected portions of libdwfl in a more readable
// fashion, and with specific cleanup / checking / logging options.

const char *
dwarf_diename_integrate (Dwarf_Die *die)
{
  Dwarf_Attribute attr_mem;
  return dwarf_formstring (dwarf_attr_integrate (die, DW_AT_name, &attr_mem));
}


/* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */