Java Code Examples for ghidra.program.model.address.Address#addNoWrap()
The following examples show how to use
ghidra.program.model.address.Address#addNoWrap() .
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Example 1
Source File: NXProgramBuilder.java From Ghidra-Switch-Loader with ISC License | 6 votes |
protected void setupStringTable() throws AddressOverflowException, CodeUnitInsertionException, DataTypeConflictException { NXOAdapter adapter = this.nxo.getAdapter(); ElfStringTable stringTable = adapter.getStringTable(this.program); if (stringTable == null) return; long stringTableAddrOffset = stringTable.getAddressOffset(); Address address = this.aSpace.getAddress(stringTableAddrOffset); Address end = address.addNoWrap(stringTable.getLength() - 1); while (address.compareTo(end) < 0) { int length = this.createString(address); address = address.addNoWrap(length); } }
Example 2
Source File: ByteMappingScheme.java From ghidra with Apache License 2.0 | 5 votes |
/** * Calculate the mapped source address for a specified offset with the mapped sub-block. * @param mappedSourceBaseAddress mapped source base address for sub-block * @param offsetInSubBlock byte offset within sub-block to be mapped into source * @return mapped source address * @throws AddressOverflowException if offset in sub-block produces a wrap condition in * the mapped source address space. */ public Address getMappedSourceAddress(Address mappedSourceBaseAddress, long offsetInSubBlock) throws AddressOverflowException { if (offsetInSubBlock < 0) { throw new IllegalArgumentException("negative offset"); } long sourceOffset = offsetInSubBlock; if (!isOneToOneMapping()) { sourceOffset = (mappedSourceByteCount * (offsetInSubBlock / mappedByteCount)) + (offsetInSubBlock % mappedByteCount); } return mappedSourceBaseAddress.addNoWrap(sourceOffset); }
Example 3
Source File: ByteMappingScheme.java From ghidra with Apache License 2.0 | 5 votes |
/** * Write an array of bytes to memory utilizing this mapping scheme. * @param memory program memory * @param mappedSourceBaseAddress base source memory address for byte-mapped subblock * @param offsetInSubBlock byte offset from start of subblock where writing should begin * @param b an array to get bytes from * @param off start source index within byte array b where bytes should be read * @param len number of bytes to be written * @throws MemoryAccessException if write of uninitialized or non-existing memory occurs * @throws AddressOverflowException if address computation error occurs */ void setBytes(Memory memory, Address mappedSourceBaseAddress, long offsetInSubBlock, byte[] b, int off, int len) throws MemoryAccessException, AddressOverflowException { if (isOneToOneMapping()) { memory.setBytes(mappedSourceBaseAddress.addNoWrap(offsetInSubBlock), b, off, len); return; } long patternCount = offsetInSubBlock / mappedByteCount; int partialByteCount = (int) (offsetInSubBlock % mappedByteCount); long mappedOffset = (mappedSourceByteCount * patternCount) + partialByteCount; Address destAddr = mappedSourceBaseAddress.addNoWrap(mappedOffset); int index = off; int cnt = 0; int i = mappedByteCount - partialByteCount; while (cnt < len) { memory.setBytes(destAddr, b, index, i); index += i; cnt += i; destAddr = destAddr.addNoWrap(i + nonMappedByteCount); i = mappedByteCount; } }
Example 4
Source File: DisassembledViewPlugin.java From ghidra with Apache License 2.0 | 5 votes |
/** * Gets the {@link DisassembledAddressInfo}s for the given address. * This method will disassamble {@link #LOOK_AHEAD_COUNT a few} addresses * after the one that is passed in. * * @param address The address for which an info object will be obtained. * @return An array of info objects describing the initial address and any * others that could be obtained. */ private DisassembledAddressInfo[] getAddressInformation(Address address) { List<DisassembledAddressInfo> infoList = new ArrayList<>(); if (address != null) { try { DisassembledAddressInfo addressInfo = new DisassembledAddressInfo(address); // Now get some follow-on addresses to provide a small level of // context. This loop will stop if we cannot find an Address // or a CodeUnit for a given address. for (int i = 0; (i < LOOK_AHEAD_COUNT) && (address != null) && addressInfo.isValidAddress(); i++) { infoList.add(addressInfo); // Increment the address for the next code unit preview. // This call throws an AddressOverflowException address = address.addNoWrap(addressInfo.getCodeUnitLength()); if (address != null) { addressInfo = new DisassembledAddressInfo(address); } } } catch (AddressOverflowException aoe) { // we don't really care because there is nothing left to show // here, as we've reached the end of the address space } } return infoList.toArray(new DisassembledAddressInfo[infoList.size()]); }
Example 5
Source File: CreateStringScript.java From ghidra with Apache License 2.0 | 5 votes |
@Override public void run() throws Exception { Address addr = find(null, TERMINATOR); while (addr != null) { createString(addr); try { addr = addr.addNoWrap(1); addr = find(addr, TERMINATOR); } catch (AddressOverflowException e) { // must be at largest possible address - so we are done } } }
Example 6
Source File: DisassembledViewPluginTest.java From ghidra with Apache License 2.0 | 4 votes |
/** * Tests the plugins response to * {@link ghidra.app.events.ProgramLocationPluginEvent}s. This plugin is * driven off of these events. * * @throws Exception If there is a problem opening the program. */ @Test public void testProcessingOnLocationChanged() throws Exception { openProgram("notepad"); // get the list hiding inside of the component provider JList list = (JList) getInstanceField("contentList", componentProvider); // sanity check assertEquals("The component provider has data when it is not visible.", 0, list.getModel().getSize()); // show the plugin and make sure it is visible before we continue tool.showComponentProvider(componentProvider, true); waitForPostedSwingRunnables(); ListModel modelOne = list.getModel(); // now the list should have data, as it will populate itself off of the // current program location of the plugin assertTrue("The component provider does not have data when it " + "should.", (modelOne.getSize() != 0)); // make sure we process the event in order to show the user the // preview CodeBrowserPlugin cbPlugin = getPlugin(tool, CodeBrowserPlugin.class); // scroll the display and force a new selection pageDown(cbPlugin.getFieldPanel()); simulateButtonPress(cbPlugin); waitForPostedSwingRunnables(); // get the data ListModel modelTwo = list.getModel(); boolean sameData = compareListData(modelOne, modelTwo); assertTrue("The contents of the two lists are the same when they " + "should not be.", !sameData); // make sure no work is done when we are not visible tool.showComponentProvider(componentProvider, false); waitForPostedSwingRunnables(); assertEquals("The component provider has data when it is not visible.", 0, list.getModel().getSize()); // show the plugin so that it will get the program location change // data tool.showComponentProvider(componentProvider, true); waitForPostedSwingRunnables(); // test that sending a bad address will not return any results or // throw any exceptions Memory memory = program.getMemory(); MemoryBlock textBlock = memory.getBlock(".text"); Address endAddress = textBlock.getEnd(); // creating a program location based upon the end address should result // in only one item in the disassembled list ProgramLocation location = new ProgramLocation(program, endAddress); // call the locationChanged() method invokeInstanceMethod("locationChanged", plugin, new Class[] { ProgramLocation.class }, new Object[] { location }); assertTrue( "The plugin's display list has more than 1 element when " + "at the end address of a memory block. List size: " + list.getModel().getSize(), (list.getModel().getSize() == 1)); Listing listing = program.getListing(); CodeUnit codeUnit = listing.getCodeUnitAt(endAddress); Address invalidAddress = endAddress.addNoWrap(codeUnit.getLength()); ProgramLocation newLocation = new ProgramLocation(program, invalidAddress); invokeInstanceMethod("locationChanged", plugin, new Class[] { ProgramLocation.class }, new Object[] { newLocation }); assertEquals("The plugin's display list has data when there is an " + "invalid address at the current program location.", list.getModel().getSize(), 0); }
Example 7
Source File: CondenseRepeatingBytes.java From ghidra with Apache License 2.0 | 4 votes |
@Override public void run() throws Exception { if (currentAddress == null) { println("No Location."); return; } MemoryBlock currentMemoryBlock = currentProgram.getMemory().getBlock(currentAddress); if(!currentMemoryBlock.isInitialized()){ println("Script cannot run in uninitialized memory."); return; } Listing listing = currentProgram.getListing(); Address currentAddr = currentAddress; byte repeatingByte = currentProgram.getMemory().getByte(currentAddr); int repeatLen = 1; currentAddr = currentAddr.addNoWrap(1); byte nextByte; boolean sameMemoryBlock; if(currentProgram.getMemory().getBlock(currentAddr).equals(currentMemoryBlock)) { nextByte = currentProgram.getMemory().getByte(currentAddr); sameMemoryBlock = true; } else{ sameMemoryBlock = false; return; } boolean noCollisions = true; while((sameMemoryBlock) && (nextByte == repeatingByte) && (noCollisions)){ repeatLen++; currentAddr = currentAddr.addNoWrap(1); if(currentProgram.getMemory().getBlock(currentAddr) != currentMemoryBlock){ sameMemoryBlock = false; } else{ nextByte = currentProgram.getMemory().getByte(currentAddr); noCollisions = listing.isUndefined(currentAddr,currentAddr); } } listing.createData(currentAddress, new AlignmentDataType(), repeatLen); println("Applied Alignment datatype at " + currentAddress.toString()); }
Example 8
Source File: CondenseRepeatingBytesAtEndOfMemory.java From ghidra with Apache License 2.0 | 4 votes |
@Override public void run() throws Exception { if (currentAddress == null) { println("No Location."); return; } MemoryBlock memoryBlock = currentProgram.getMemory().getBlock(currentAddress); if(!memoryBlock.isInitialized()){ println("Script cannot run in uninitialized memory."); return; } Listing listing = currentProgram.getListing(); Address currentAddr = currentAddress; boolean isInitializedBlock = memoryBlock.isInitialized(); if(isInitializedBlock){ currentAddr = memoryBlock.getEnd(); println("end of byte addr is " + currentAddr); byte repeatingByte = currentProgram.getMemory().getByte(currentAddr); MemoryBlock currentMemoryBlock = null; // search for next repeatedByte from the end of memory // until it hits defined area or different byte byte prevByte = repeatingByte; int repeatLen = 0; boolean noCollisions = listing.isUndefined(currentAddr,currentAddr); boolean hasLabels = currentProgram.getSymbolTable().hasSymbol(currentAddr); println("no collisions at end = " + noCollisions); currentMemoryBlock = currentProgram.getMemory().getBlock(currentAddr); while((prevByte == repeatingByte) && (noCollisions) && (currentMemoryBlock.equals(memoryBlock)) && (!hasLabels)){ repeatLen++; currentAddr = currentAddr.addNoWrap(-1); prevByte = currentProgram.getMemory().getByte(currentAddr); noCollisions = listing.isUndefined(currentAddr,currentAddr); hasLabels = currentProgram.getSymbolTable().hasSymbol(currentAddr); currentMemoryBlock = currentProgram.getMemory().getBlock(currentAddr); } if(repeatLen > 0){ // this takes care of the last one tested that failed currentAddr = currentAddr.addNoWrap(1); listing.createData(currentAddr, new AlignmentDataType(), repeatLen); println("Applied Alignment datatype at " + currentAddr.toString()); } else{ println("No repeating bytes OR data already defined at end of " + memoryBlock); } } else{ println("Cannot condense uninitialized memory."); } }