| /* Return block of uninterpreted data represented by attribute. |
| Copyright (C) 2000, 2002 Red Hat, Inc. |
| This file is part of Red Hat elfutils. |
| Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
| |
| Red Hat elfutils is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by the |
| Free Software Foundation; version 2 of the License. |
| |
| Red Hat elfutils is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along |
| with Red Hat elfutils; if not, write to the Free Software Foundation, |
| Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| |
| Red Hat elfutils is an included package of the Open Invention Network. |
| An included package of the Open Invention Network is a package for which |
| Open Invention Network licensees cross-license their patents. No patent |
| license is granted, either expressly or impliedly, by designation as an |
| included package. Should you wish to participate in the Open Invention |
| Network licensing program, please visit www.openinventionnetwork.com |
| <http://www.openinventionnetwork.com>. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <dwarf.h> |
| #include <stdlib.h> |
| |
| #include <libdwarfP.h> |
| |
| |
| int |
| dwarf_formblock (attr, return_block, error) |
| Dwarf_Attribute attr; |
| Dwarf_Block **return_block; |
| Dwarf_Error *error; |
| { |
| Dwarf_Small *attrp = attr->valp; |
| Dwarf_Unsigned len; |
| Dwarf_Ptr *data; |
| Dwarf_Block *result; |
| |
| switch (attr->form) |
| { |
| case DW_FORM_block1: |
| len = *attrp; |
| data = (Dwarf_Ptr) (attrp + 1); |
| break; |
| |
| case DW_FORM_block2: |
| len = read_2ubyte_unaligned (attr->cu->dbg, attrp); |
| data = (Dwarf_Ptr) (attrp + 2); |
| break; |
| |
| case DW_FORM_block4: |
| len = read_4ubyte_unaligned (attr->cu->dbg, attrp); |
| data = (Dwarf_Ptr) (attrp + 2); |
| break; |
| |
| case DW_FORM_block: |
| get_uleb128 (len, attrp); |
| data = (Dwarf_Ptr) attrp; |
| break; |
| |
| default: |
| __libdwarf_error (attr->cu->dbg, error, DW_E_NO_BLOCK); |
| return DW_DLV_ERROR; |
| } |
| |
| /* Allocate memory for the result. */ |
| result = (Dwarf_Block *) malloc (sizeof (Dwarf_Block)); |
| if (result == NULL) |
| { |
| __libdwarf_error (attr->cu->dbg, error, DW_E_NOMEM); |
| return DW_DLV_ERROR; |
| } |
| |
| result->bl_len = len; |
| result->bl_data = data; |
| |
| *return_block = result; |
| return DW_DLV_OK; |
| } |