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/* Return block of uninterpreted data represented by attribute.
Copyright (C) 2000, 2002 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 2000.
This program is Open Source software; you can redistribute it and/or
modify it under the terms of the Open Software License version 1.0 as
published by the Open Source Initiative.
You should have received a copy of the Open Software License along
with this program; if not, you may obtain a copy of the Open Software
License version 1.0 from http://www.opensource.org/licenses/osl.php or
by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
3001 King Ranch Road, Ukiah, CA 95482. */
#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;
}
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