1/*
2 * File:	DataTarget.cpp
3 *
4 * Copyright (c) Freescale Semiconductor, Inc. All rights reserved.
5 * See included license file for license details.
6 */
7
8#include "DataTarget.h"
9#include "DataSource.h"
10#include "ElftosbErrors.h"
11
12using namespace elftosb;
13
14//! \exception elftosb::semantic_error Thrown if the source has multiple segments.
15DataTarget::AddressRange ConstantDataTarget::getRangeForSegment(DataSource & source, DataSource::Segment & segment)
16{
17	// can't handle multi-segment data sources
18	if (source.getSegmentCount() > 1)
19	{
20		throw semantic_error("constant targets only support single-segment sources");
21	}
22
23	// always relocate the segment to our begin address
24	AddressRange range;
25	range.m_begin = m_begin;
26
27	if (isBounded())
28	{
29		// we have an end address. trim the result range to the segment size
30		// or let the end address crop the segment.
31		range.m_end = std::min<uint32_t>(m_end, m_begin + segment.getLength());
32	}
33	else
34	{
35		// we have no end address, so the segment size determines it.
36		range.m_end = m_begin + segment.getLength();
37	}
38
39	return range;
40}
41
42//! If the \a segment has a natural location, the returned address range extends
43//! from the segment's base address to its base address plus its length.
44//!
45//! \exception elftosb::semantic_error This exception is thrown if the \a segment
46//!		does not have a natural location associated with it.
47DataTarget::AddressRange NaturalDataTarget::getRangeForSegment(DataSource & source, DataSource::Segment & segment)
48{
49	if (!segment.hasNaturalLocation())
50	{
51		throw semantic_error("source has no natural location");
52	}
53
54	AddressRange range;
55	range.m_begin = segment.getBaseAddress();
56	range.m_end = segment.getBaseAddress() + segment.getLength();
57	return range;
58}
59
60