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/* Return block represented by attribute.
Copyright (C) 2004, 2005 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 2004.
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 "libdwP.h"
int
dwarf_formblock (attr, return_block)
Dwarf_Attribute *attr;
Dwarf_Block *return_block;
{
if (attr == NULL)
return -1;
const unsigned char *datap;
switch (attr->form)
{
case DW_FORM_block1:
return_block->length = *(uint8_t *) attr->valp;
return_block->data = attr->valp + 1;
break;
case DW_FORM_block2:
return_block->length = read_2ubyte_unaligned (attr->cu->dbg, attr->valp);
return_block->data = attr->valp + 2;
break;
case DW_FORM_block4:
return_block->length = read_4ubyte_unaligned (attr->cu->dbg, attr->valp);
return_block->data = attr->valp + 4;
break;
case DW_FORM_block:
datap = attr->valp;
get_uleb128 (return_block->length, datap);
return_block->data = (unsigned char *) datap;
break;
default:
__libdw_seterrno (DWARF_E_NO_BLOCK);
return -1;
}
if (return_block->data + return_block->length
> ((unsigned char *) attr->cu->dbg->sectiondata[IDX_debug_info]->d_buf
+ attr->cu->dbg->sectiondata[IDX_debug_info]->d_size))
{
/* Block does not fit. */
__libdw_seterrno (DWARF_E_INVALID_DWARF);
return -1;
}
return 0;
}
INTDEF(dwarf_formblock)
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