Line data    Source code

       1             : /* Get line number of beginning of given function.
       2             :    Copyright (C) 2005, 2009 Red Hat, Inc.
       3             :    This file is part of elfutils.
       4             :    Written by Ulrich Drepper <drepper@redhat.com>, 2005.
       5             : 
       6             :    This file is free software; you can redistribute it and/or modify
       7             :    it under the terms of either
       8             : 
       9             :      * the GNU Lesser General Public License as published by the Free
      10             :        Software Foundation; either version 3 of the License, or (at
      11             :        your option) any later version
      12             : 
      13             :    or
      14             : 
      15             :      * the GNU General Public License as published by the Free
      16             :        Software Foundation; either version 2 of the License, or (at
      17             :        your option) any later version
      18             : 
      19             :    or both in parallel, as here.
      20             : 
      21             :    elfutils is distributed in the hope that it will be useful, but
      22             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      23             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      24             :    General Public License for more details.
      25             : 
      26             :    You should have received copies of the GNU General Public License and
      27             :    the GNU Lesser General Public License along with this program.  If
      28             :    not, see <http://www.gnu.org/licenses/>.  */
      29             : 
      30             : #ifdef HAVE_CONFIG_H
      31             : # include <config.h>
      32             : #endif
      33             : 
      34             : #include <assert.h>
      35             : #include <dwarf.h>
      36             : #include <limits.h>
      37             : #include "libdwP.h"
      38             : 
      39             : 
      40             : int
      41          40 : dwarf_decl_line (Dwarf_Die *func, int *linep)
      42             : {
      43          40 :   return __libdw_attr_intval (func, linep, DW_AT_decl_line);
      44             : }
      45             : OLD_VERSION (dwarf_decl_line, ELFUTILS_0.122)
      46             : NEW_VERSION (dwarf_decl_line, ELFUTILS_0.143)
      47             : 
      48             : 
      49             : int internal_function
      50          40 : __libdw_attr_intval (Dwarf_Die *die, int *linep, int attval)
      51             : {
      52          40 :   Dwarf_Attribute attr_mem;
      53          40 :   Dwarf_Word line;
      54             : 
      55          40 :   int res = INTUSE(dwarf_formudata) (INTUSE(dwarf_attr_integrate)
      56             :                                      (die, attval, &attr_mem),
      57             :                                      &line);
      58          40 :   if (res == 0)
      59             :     {
      60          40 :       if (line > INT_MAX)
      61             :         {
      62           0 :           __libdw_seterrno (DWARF_E_INVALID_DWARF);
      63           0 :           res = -1;
      64             :         }
      65             :       else
      66          40 :         *linep = line;
      67             :     }
      68             : 
      69          40 :   return res;
      70             : }