yetangitu/ghidra
1
0
Fork 0
mirror of https://github.com/NationalSecurityAgency/ghidra.git synced 2025-10-06 12:00:04 +02:00
Code Issues Releases Wiki Activity

GP-484: Added overlay spaces to Trace

Browse source
This commit is contained in:
Dan 2021-10-15 11:16:01 -04:00
parent edf3a85c2d
commit 1c56c454e1
28 changed files with 1269 additions and 616 deletions
Download patch file Download diff file Expand all files Collapse all files

54
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/ProgramAddressFactory.java
View file

@ -97,25 +97,27 @@ public class ProgramAddressFactory extends DefaultAddressFactory {
return originalFactory;
}
void addOverlayAddressSpace(OverlayAddressSpace ovSpace) throws DuplicateNameException {
protected void addOverlayAddressSpace(OverlayAddressSpace ovSpace)
throws DuplicateNameException {
addAddressSpace(ovSpace);
}
/**
* Create a new OverlayAddressSpace based upon the given overlay blockName and base AddressSpace
* @param name the preferred name of the overlay address space to be created.
* This name may be modified if preserveName is false to produce a valid overlay space
* name and avoid duplication.
* @param preserveName if true specified name will be preserved, if false an unique acceptable
* overlay space name will be generated from the specified name.
* @param originalSpace the base AddressSpace to overlay
*
* @param name the preferred name of the overlay address space to be created. This name may be
* modified if preserveName is false to produce a valid overlay space name and avoid
* duplication.
* @param preserveName if true specified name will be preserved, if false an unique acceptable
* overlay space name will be generated from the specified name.
* @param originalSpace the base AddressSpace to overlay
* @param minOffset the min offset of the space
* @param maxOffset the max offset of the space
* @return the new overlay space
* @throws IllegalArgumentException if originalSpace is not permitted or preserveName is true
* and a space with specified name already exists.
* and a space with specified name already exists.
*/
OverlayAddressSpace addOverlayAddressSpace(String name, boolean preserveName,
protected OverlayAddressSpace addOverlayAddressSpace(String name, boolean preserveName,
AddressSpace originalSpace, long minOffset, long maxOffset) {
if (!originalSpace.isMemorySpace() || originalSpace.isOverlaySpace()) {
@ -154,8 +156,8 @@ public class ProgramAddressFactory extends DefaultAddressFactory {
}
/**
* Get a unique address space name based on the specified
* baseOverlayName
* Get a unique address space name based on the specified baseOverlayName
*
* @param baseOverlayName base overlay address space name
* @return unique overlay space name
*/
@ -173,12 +175,12 @@ public class ProgramAddressFactory extends DefaultAddressFactory {
}
/**
* Get base overlay name removing any numeric suffix which may
* have been added to avoid duplication. This method is intended
* to be used during rename only.
* Get base overlay name removing any numeric suffix which may have been added to avoid
* duplication. This method is intended to be used during rename only.
*
* @param overlayName existing overlay space name
* @return base overlay name with any trailing index removed
* which may have been added to avoid duplication.
* @return base overlay name with any trailing index removed which may have been added to avoid
* duplication.
*/
private String getBaseOverlayName(String overlayName) {
int index = overlayName.lastIndexOf('.');
@ -200,9 +202,10 @@ public class ProgramAddressFactory extends DefaultAddressFactory {
}
/**
* Generate an allowed address space name from a block name. Use of unsupported
* characters will be converted to underscore (includes colon and all whitespace chars).
* double-underscore to ensure uniqueness.
* Generate an allowed address space name from a block name. Use of unsupported characters will
* be converted to underscore (includes colon and all whitespace chars). double-underscore to
* ensure uniqueness.
*
* @param blockName corresponding memory block name
* @return overlay space name
*/
@ -249,18 +252,17 @@ public class ProgramAddressFactory extends DefaultAddressFactory {
return addr;
}
void removeOverlaySpace(String name) {
protected void removeOverlaySpace(String name) {
removeAddressSpace(name);
}
/**
* Rename overlay with preferred newName. Actual name used will be returned
* and may differ from specified newName to ensure validity and avoid
* duplication.
* Rename overlay with preferred newName. Actual name used will be returned and may differ from
* specified newName to ensure validity and avoid duplication.
*
* @param oldOverlaySpaceName the existing overlay address space name
* @param newName the preferred new name of the overlay address space.
* This name may be modified to produce a valid overlay space
* name to avoid duplication.
* @param newName the preferred new name of the overlay address space. This name may be modified
* to produce a valid overlay space name to avoid duplication.
* @return new name applied to existing overlay space
*/
@Override

114
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/address/OverlayAddressSpace.java
View file

@ -16,17 +16,17 @@
package ghidra.program.model.address;
public class OverlayAddressSpace extends AbstractAddressSpace {
public static final String OV_SEPARATER = ":";
public static final String OV_SEPARATER = ":";
private AddressSpace originalSpace;
private long databaseKey;
public OverlayAddressSpace(String name, AddressSpace originalSpace, int unique,
public OverlayAddressSpace(String name, AddressSpace originalSpace, int unique,
long minOffset, long maxOffset) {
super(name, originalSpace.getSize(), originalSpace.getAddressableUnitSize(),
originalSpace.getType(), unique);
originalSpace.getType(), unique);
this.originalSpace = originalSpace;
this.setShowSpaceName(true);
@ -37,7 +37,7 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
minAddress = new GenericAddress(this, minOffset);
maxAddress = new GenericAddress(this, maxOffset);
}
// public Address addNoWrap(Address addr, long displacement) throws AddressOverflowException {
// addr = super.addNoWrap(addr, displacement);
//
@ -59,21 +59,22 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
// }
//
@Override
public Address getAddress(String addrString) throws AddressFormatException {
public Address getAddress(String addrString) throws AddressFormatException {
addrString = addrString.replaceAll("::", ":");
int firstColonPos = addrString.indexOf(":");
int lastColonPos = addrString.lastIndexOf(":");
if (firstColonPos != lastColonPos) {
String middleName = addrString.substring(firstColonPos+1, lastColonPos);
String middleName = addrString.substring(firstColonPos + 1, lastColonPos);
if (middleName.equals(originalSpace.getName())) {
addrString = addrString.substring(0, firstColonPos)+addrString.substring(lastColonPos);
addrString =
addrString.substring(0, firstColonPos) + addrString.substring(lastColonPos);
}
}
return super.getAddress(addrString);
// return translateAddress(super.getAddress(addrString));
}
// public Address next(Address addr) {
@ -93,7 +94,7 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
// }
@Override
public long subtract(Address addr1, Address addr2) {
public long subtract(Address addr1, Address addr2) {
AddressSpace space1 = addr1.getAddressSpace();
AddressSpace space2 = addr2.getAddressSpace();
if (space1.equals(this)) {
@ -104,9 +105,9 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
}
if (!space1.equals(space2)) {
throw new IllegalArgumentException("Address are in different spaces " +
addr1.getAddressSpace().getName() + " != " + addr2.getAddressSpace().getName());
addr1.getAddressSpace().getName() + " != " + addr2.getAddressSpace().getName());
}
return addr1.getOffset()-addr2.getOffset();
return addr1.getOffset() - addr2.getOffset();
}
// public Address subtractNoWrap(Address addr, long displacement) throws AddressOverflowException {
@ -116,59 +117,60 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
// public Address subtractWrap(Address addr, long displacement) {
// return translateAddress(super.subtractWrap(addr, displacement));
// }
@Override
public boolean isOverlaySpace() {
public boolean isOverlaySpace() {
return originalSpace != null;
}
public AddressSpace getOverlayedSpace() {
return originalSpace;
}
@Override
public AddressSpace getPhysicalSpace() {
public AddressSpace getPhysicalSpace() {
return originalSpace.getPhysicalSpace();
}
@Override
public boolean hasMappedRegisters() {
public boolean hasMappedRegisters() {
return originalSpace.hasMappedRegisters();
}
public long getMinOffset() {
return minOffset;
}
public long getMaxOffset() {
return maxOffset;
}
public boolean contains(long offset) {
return (offset >= minOffset && offset <= maxOffset);
public boolean contains(long offset) {
return Long.compareUnsigned(minOffset, offset) <= 0 &&
Long.compareUnsigned(offset, maxOffset) <= 0;
}
@Override
public Address getAddressInThisSpaceOnly(long offset) {
public Address getAddressInThisSpaceOnly(long offset) {
return new GenericAddress(offset, this);
}
@Override
public Address getAddress(long offset) {
public Address getAddress(long offset) {
if (contains(offset)) {
return new GenericAddress(this, offset);
}
return originalSpace.getAddress(offset);
}
@Override
protected Address getUncheckedAddress(long offset) {
protected Address getUncheckedAddress(long offset) {
return new GenericAddress(offset, this);
}
@Override
public Address getOverlayAddress(Address addr) {
if (getOverlayedSpace().equals(addr.getAddressSpace()))
{
public Address getOverlayAddress(Address addr) {
if (getOverlayedSpace().equals(addr.getAddressSpace())) {
if (contains(addr.getOffset())) {
return new GenericAddress(this, addr.getOffset());
}
@ -178,25 +180,27 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
/**
* If the given address is outside the overlay block, then the address is tranlated to an
* address in the base space with the same offset, otherwise (if the address exists in the overlay
* block), it is returned
* address in the base space with the same offset, otherwise (if the address exists in the
* overlay block), it is returned
*
* @param addr the address to translate to the base space if it is outside the overlay block
* @return either the given address if it is contained in the overlay memory block or an address
* in the base space with the same offset as the given address.
* in the base space with the same offset as the given address.
*/
public Address translateAddress(Address addr) {
return translateAddress(addr, false);
}
/**
* Tranlated an overlay-space address (addr, which may exceed the bounds of the overlay space)
* to an address in the base space with the same offset.
* If forceTranslation is false and addr is contained within the overlay-space
* the original addr is returned.
* Tranlated an overlay-space address (addr, which may exceed the bounds of the overlay space)
* to an address in the base space with the same offset. If forceTranslation is false and addr
* is contained within the overlay-space the original addr is returned.
*
* @param addr the address to translate to the base space
* @param forceTranslation if true addr will be translated even if addr falls within the
* bounds of this overlay-space.
* @param forceTranslation if true addr will be translated even if addr falls within the bounds
* of this overlay-space.
* @return either the given address if it is contained in the overlay memory block or an address
* in the base space with the same offset as the given address.
* in the base space with the same offset as the given address.
*/
public Address translateAddress(Address addr, boolean forceTranslation) {
if (addr == null) {
@ -207,18 +211,19 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
}
return new GenericAddress(originalSpace, addr.getOffset());
}
/**
* @return the ID of the address space underlying this space
*/
public int getBaseSpaceID() {
public int getBaseSpaceID() {
return originalSpace.getSpaceID();
}
@Override
public String toString() {
return super.toString()+OV_SEPARATER;
public String toString() {
return super.toString() + OV_SEPARATER;
}
public void setName(String newName) {
name = newName;
}
@ -226,12 +231,13 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
public void setDatabaseKey(long key) {
databaseKey = key;
}
public long getDatabaseKey() {
return databaseKey;
}
@Override
public boolean equals(Object obj) {
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
@ -241,11 +247,11 @@ public class OverlayAddressSpace extends AbstractAddressSpace {
if (!(obj instanceof OverlayAddressSpace)) {
return false;
}
OverlayAddressSpace s = (OverlayAddressSpace)obj;
return originalSpace.equals(s.originalSpace) &&
name.equals(s.name) &&
minOffset == s.minOffset &&
maxOffset == s.maxOffset;
OverlayAddressSpace s = (OverlayAddressSpace) obj;
return originalSpace.equals(s.originalSpace) &&
name.equals(s.name) &&
minOffset == s.minOffset &&
maxOffset == s.maxOffset;
}
}