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ARM Enhancents #2

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d6af6fa
Fix values for SHT_LOUSER and SHT_HIUSER
matthiasblaesing May 21, 2018
b9ec405
Add section types for ARM Architecture
matthiasblaesing May 21, 2018
2d2584c
Add ARM Build Attribute Parser
matthiasblaesing May 26, 2018
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163 changes: 163 additions & 0 deletions src/main/java/nl/lxtreme/binutils/elf/ArmAeabiAttributesTag.java
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/*
* BinUtils - access various binary formats from Java
*
* (C) Copyright 2018 - Matthias Bläsing - mblaesing@doppel-helix.eu
*
* Licensed under Apache License v2.
*/
package nl.lxtreme.binutils.elf;

import java.math.BigInteger;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

public class ArmAeabiAttributesTag<T> {

private final int value;
private final String name;
private final ArmParameterType<T> parameterType;

public ArmAeabiAttributesTag(int value, String name, ArmParameterType<T> parameterType) {
this.value = value;
this.name = name;
this.parameterType = parameterType;
}

public int getValue() {
return value;
}

public String getName() {
return name;
}

public ArmParameterType getParameterType() {
return parameterType;
}

@Override
public String toString() {
return name + " (" + value + ")";
}

@Override
public int hashCode() {
int hash = 7;
hash = 67 * hash + this.value;
return hash;
}

@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final ArmAeabiAttributesTag other = (ArmAeabiAttributesTag) obj;
if (this.value != other.value) {
return false;
}
return true;
}

private static final List<ArmAeabiAttributesTag> tags = new LinkedList<ArmAeabiAttributesTag>();
private static final Map<Integer, ArmAeabiAttributesTag> valueMap = new HashMap<Integer, ArmAeabiAttributesTag>();
private static final Map<String, ArmAeabiAttributesTag> nameMap = new HashMap<String, ArmAeabiAttributesTag>();

// Enumerated from ARM IHI 0045E, 2.5 Attributes summary and history
public static final ArmAeabiAttributesTag<Integer> File = addTag(1, "File", ArmParameterType.UINT32);
public static final ArmAeabiAttributesTag<Integer> Section = addTag(2, "Section", ArmParameterType.UINT32);
public static final ArmAeabiAttributesTag<Integer> Symbol = addTag(3, "Symbol", ArmParameterType.UINT32);
public static final ArmAeabiAttributesTag<String> CPU_raw_name = addTag(4, "CPU_raw_name", ArmParameterType.NTBS);
public static final ArmAeabiAttributesTag<String> CPU_name = addTag(5, "CPU_name", ArmParameterType.NTBS);
public static final ArmAeabiAttributesTag<BigInteger> CPU_arch = addTag(6, "CPU_arch", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> CPU_arch_profile = addTag(7, "CPU_arch_profile", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ARM_ISA_use = addTag(8, "ARM_ISA_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> THUMB_ISA_use= addTag(9, "THUMB_ISA_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> FP_arch = addTag(10, "FP_arch", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> WMMX_arch = addTag(11, "WMMX_arch", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> Advanced_SIMD_arch = addTag(12, "Advanced_SIMD_arch", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> PCS_config = addTag(13, "PCS_config", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_PCS_R9_use = addTag(14, "ABI_PCS_R9_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_PCS_RW_data = addTag(15, "ABI_PCS_RW_data", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_PCS_RO_data = addTag(16, "ABI_PCS_RO_data", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_PCS_GOT_use = addTag(17, "ABI_PCS_GOT_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_PCS_wchar_t = addTag(18, "ABI_PCS_wchar_t", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_rounding = addTag(19, "ABI_FP_rounding", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_denormal = addTag(20, "ABI_FP_denormal", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_exceptions = addTag(21, "ABI_FP_exceptions", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_user_exceptions = addTag(22, "ABI_FP_user_exceptions", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_number_model = addTag(23, "ABI_FP_number_model", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_align_needed= addTag(24, "ABI_align_needed", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_align8_preserved = addTag(25, "ABI_align8_preserved", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_enum_size= addTag(26, "ABI_enum_size", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_HardFP_use = addTag(27, "ABI_HardFP_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_VFP_args = addTag(28, "ABI_VFP_args", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_WMMX_args = addTag(29, "ABI_WMMX_args", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_optimization_goals = addTag(30, "ABI_optimization_goals", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_optimization_goals = addTag(31, "ABI_FP_optimization_goals", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<String> compatibility = addTag(32, "compatibility", ArmParameterType.NTBS);
public static final ArmAeabiAttributesTag<BigInteger> CPU_unaligned_access = addTag(34, "CPU_unaligned_access", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> FP_HP_extension = addTag(36, "FP_HP_extension", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> ABI_FP_16bit_format = addTag(38, "ABI_FP_16bit_format", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> MPextension_use = addTag(42, "MPextension_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> DIV_use = addTag(44, "DIV_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> nodefaults = addTag(64, "nodefaults", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<String> also_compatible_with = addTag(65, "also_compatible_with", ArmParameterType.NTBS);
public static final ArmAeabiAttributesTag<String> conformance = addTag(67, "conformance", ArmParameterType.NTBS);
public static final ArmAeabiAttributesTag<BigInteger> T2EE_use = addTag(66, "T2EE_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> Virtualization_use = addTag(68, "Virtualization_use", ArmParameterType.ULEB128);
public static final ArmAeabiAttributesTag<BigInteger> MPextension_use2 = addTag(70, "MPextension_use", ArmParameterType.ULEB128);

private static <S> ArmAeabiAttributesTag<S> addTag(int value, String name, ArmParameterType<S> type) {
ArmAeabiAttributesTag tag = new ArmAeabiAttributesTag(value, name, type);

if (!valueMap.containsKey(tag.getValue())) {
valueMap.put(tag.getValue(), tag);
}
if (!nameMap.containsKey(tag.getName())) {
nameMap.put(tag.getName(), tag);
}
tags.add(tag);
return tag;
}

public static List<ArmAeabiAttributesTag> getTags() {
return Collections.unmodifiableList(tags);
}

public static ArmAeabiAttributesTag getByName(String name) {
return nameMap.get(name);
}

public static ArmAeabiAttributesTag getByValue(int value) {
if(valueMap.containsKey(value)) {
return valueMap.get(value);
} else {
ArmAeabiAttributesTag pseudoTag = new ArmAeabiAttributesTag(value, "Unknown " + value, getParameterType(value));
return pseudoTag;
}
}

private static ArmParameterType getParameterType(int value) {
// ARM IHI 0045E, 2.2.6 Coding extensibility and compatibility
ArmAeabiAttributesTag tag = getByValue(value);
if (tag == null) {
if ((value % 2) == 0) {
return ArmParameterType.ULEB128;
} else {
return ArmParameterType.NTBS;
}
} else {
return tag.getParameterType();
}
}
}
61 changes: 61 additions & 0 deletions src/main/java/nl/lxtreme/binutils/elf/ArmAttributes.java
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/*
* BinUtils - access various binary formats from Java
*
* (C) Copyright 2018 - Matthias Bläsing - mblaesing@doppel-helix.eu
*
* Licensed under Apache License v2.
*/
package nl.lxtreme.binutils.elf;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.Map;

class ArmAttributes {
/**
* Name of pseudo vendor for ARM Eabi attributes
*/
public static final String AEABI = "aeabi";
private Map<String,ByteBuffer> attributeBuffers = new HashMap<>();

public ArmAttributes(ByteBuffer bb) throws IOException
{
byte format = bb.get();
if (format != 0x41)
{
// Version A
// Not supported
throw new IOException(String.format("Unrecognized format: %02x", format));
}

Map<String,Map<Integer,Map<ArmAeabiAttributesTag,Object>>> result = new HashMap<>();
while (bb.position() < bb.limit()) {
int posSectionStart = bb.position();
int sectionLength = bb.getInt();
if (sectionLength <= 0) {
// Fail!
break;
}

String vendorName = ArmParameterType.NTBS.readFromByteBuffer(bb);

ByteBuffer sectionData = bb.slice();
sectionData.order(bb.order());
sectionData.limit(sectionLength - (bb.position() - posSectionStart));

attributeBuffers.put(vendorName, sectionData);

bb.position(posSectionStart + sectionLength);
}
}

public boolean hasVendorName(String name) {
return attributeBuffers.containsKey(name);
}

public ByteBuffer getByVendorName(String name) {
return attributeBuffers.get(name);
}

}
164 changes: 164 additions & 0 deletions src/main/java/nl/lxtreme/binutils/elf/ArmAttributesTag.java
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/*
* BinUtils - access various binary formats from Java
*
* (C) Copyright 2018 - Matthias Bläsing - mblaesing@doppel-helix.eu
*
* Licensed under Apache License v2.
*/
package nl.lxtreme.binutils.elf;

import java.math.BigInteger;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;


class ArmAttributesTag<T> {

private final int value;
private final String name;
private final ArmParameterType<T> parameterType;

public ArmAttributesTag(int value, String name, ArmParameterType<T> parameterType) {
this.value = value;
this.name = name;
this.parameterType = parameterType;
}

public int getValue() {
return value;
}

public String getName() {
return name;
}

public ArmParameterType<T> getParameterType() {
return parameterType;
}

@Override
public String toString() {
return name + " (" + value + ")";
}

@Override
public int hashCode() {
int hash = 7;
hash = 67 * hash + this.value;
return hash;
}

@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final ArmAttributesTag other = (ArmAttributesTag) obj;
if (this.value != other.value) {
return false;
}
return true;
}

private static final List<ArmAttributesTag> tags = new LinkedList<ArmAttributesTag>();
private static final Map<Integer, ArmAttributesTag> valueMap = new HashMap<Integer, ArmAttributesTag>();
private static final Map<String, ArmAttributesTag> nameMap = new HashMap<String, ArmAttributesTag>();

// Enumerated from ARM IHI 0045E, 2.5 Attributes summary and history
public static final ArmAttributesTag<Integer> File = addTag(1, "File", ArmParameterType.UINT32);
public static final ArmAttributesTag<Integer> Section = addTag(2, "Section", ArmParameterType.UINT32);
public static final ArmAttributesTag<Integer> Symbol = addTag(3, "Symbol", ArmParameterType.UINT32);
public static final ArmAttributesTag<String> CPU_raw_name = addTag(4, "CPU_raw_name", ArmParameterType.NTBS);
public static final ArmAttributesTag<String> CPU_name = addTag(5, "CPU_name", ArmParameterType.NTBS);
public static final ArmAttributesTag<BigInteger> CPU_arch = addTag(6, "CPU_arch", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> CPU_arch_profile = addTag(7, "CPU_arch_profile", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ARM_ISA_use = addTag(8, "ARM_ISA_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> THUMB_ISA_use= addTag(9, "THUMB_ISA_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> FP_arch = addTag(10, "FP_arch", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> WMMX_arch = addTag(11, "WMMX_arch", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> Advanced_SIMD_arch = addTag(12, "Advanced_SIMD_arch", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> PCS_config = addTag(13, "PCS_config", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_PCS_R9_use = addTag(14, "ABI_PCS_R9_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_PCS_RW_data = addTag(15, "ABI_PCS_RW_data", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_PCS_RO_data = addTag(16, "ABI_PCS_RO_data", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_PCS_GOT_use = addTag(17, "ABI_PCS_GOT_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_PCS_wchar_t = addTag(18, "ABI_PCS_wchar_t", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_rounding = addTag(19, "ABI_FP_rounding", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_denormal = addTag(20, "ABI_FP_denormal", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_exceptions = addTag(21, "ABI_FP_exceptions", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_user_exceptions = addTag(22, "ABI_FP_user_exceptions", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_number_model = addTag(23, "ABI_FP_number_model", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_align_needed= addTag(24, "ABI_align_needed", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_align8_preserved = addTag(25, "ABI_align8_preserved", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_enum_size= addTag(26, "ABI_enum_size", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_HardFP_use = addTag(27, "ABI_HardFP_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_VFP_args = addTag(28, "ABI_VFP_args", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_WMMX_args = addTag(29, "ABI_WMMX_args", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_optimization_goals = addTag(30, "ABI_optimization_goals", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_optimization_goals = addTag(31, "ABI_FP_optimization_goals", ArmParameterType.ULEB128);
public static final ArmAttributesTag<String> compatibility = addTag(32, "compatibility", ArmParameterType.NTBS);
public static final ArmAttributesTag<BigInteger> CPU_unaligned_access = addTag(34, "CPU_unaligned_access", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> FP_HP_extension = addTag(36, "FP_HP_extension", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> ABI_FP_16bit_format = addTag(38, "ABI_FP_16bit_format", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> MPextension_use = addTag(42, "MPextension_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> DIV_use = addTag(44, "DIV_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> nodefaults = addTag(64, "nodefaults", ArmParameterType.ULEB128);
public static final ArmAttributesTag<String> also_compatible_with = addTag(65, "also_compatible_with", ArmParameterType.NTBS);
public static final ArmAttributesTag<String> conformance = addTag(67, "conformance", ArmParameterType.NTBS);
public static final ArmAttributesTag<BigInteger> T2EE_use = addTag(66, "T2EE_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> Virtualization_use = addTag(68, "Virtualization_use", ArmParameterType.ULEB128);
public static final ArmAttributesTag<BigInteger> MPextension_use2 = addTag(70, "MPextension_use", ArmParameterType.ULEB128);

private static <S> ArmAttributesTag<S> addTag(int value, String name, ArmParameterType<S> type) {
ArmAttributesTag tag = new ArmAttributesTag(value, name, type);

if (!valueMap.containsKey(tag.getValue())) {
valueMap.put(tag.getValue(), tag);
}
if (!nameMap.containsKey(tag.getName())) {
nameMap.put(tag.getName(), tag);
}
tags.add(tag);
return tag;
}

public static List<ArmAttributesTag> getTags() {
return Collections.unmodifiableList(tags);
}

public static ArmAttributesTag getByName(String name) {
return nameMap.get(name);
}

public static ArmAttributesTag getByValue(int value) {
if(valueMap.containsKey(value)) {
return valueMap.get(value);
} else {
ArmAttributesTag pseudoTag = new ArmAttributesTag(value, "Unknown " + value, getParameterType(value));
return pseudoTag;
}
}

private static ArmParameterType getParameterType(int value) {
// ARM IHI 0045E, 2.2.6 Coding extensibility and compatibility
ArmAttributesTag tag = getByValue(value);
if (tag == null) {
if ((value % 2) == 0) {
return ArmParameterType.ULEB128;
} else {
return ArmParameterType.NTBS;
}
} else {
return tag.getParameterType();
}
}
}
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