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GP-1230: Add Taint Analysis prototype and emulator framework support

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Dan
2022-08-22 14:15:14 -04:00
parent 4bfd8d1112
commit 51a1933ab3
205 changed files with 11214 additions and 3714 deletions
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14
Ghidra/Debug/Debugger/ghidra_scripts/DemoPcodeUseropLibrary.java
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@@ -29,16 +29,17 @@ import ghidra.program.model.pcode.Varnode;
* A userop library for the emulator
*
* <p>
* If you do not have need of a custom userop library, use {@link PcodeUseropLibrary#NIL}. These
* libraries allow you to implement userop, including those declared by the language. Without these,
* the emulator must interrupt whenever a userop ({@code CALLOTHER}) is encountered. You can also
* define new userops, which can be invoked from Sleigh code injected into the emulator.
* If you do not need a custom userop library, use {@link PcodeUseropLibrary#NIL}. These libraries
* allow you to implement userops, including those declared by the language. Without these, the
* emulator must interrupt whenever a userop ({@code CALLOTHER}) is encountered. You can also define
* new userops, which can be invoked from Sleigh code injected into the emulator.
*
* <p>
* These libraries can have both Java-callback and p-code implementations of userops. If only using
* p-code implementations, the library can be parameterized with type {@code <T>} and just pass that
* over to {@link AnnotatedPcodeUseropLibrary}. Because this will demo a Java callback that assumes
* concrete bytes, we will fix the library's type to {@code byte[]}.
* concrete bytes, we will fix the library's type to {@code byte[]}. With careful use of the
* {@link PcodeArithmetic}, you can keep the type an abstract {@code <T>} with Java callbacks.
*
* <p>
* Methods in this class (not including those in its nested classes) are implemented as Java
@@ -74,8 +75,7 @@ public class DemoPcodeUseropLibrary extends AnnotatedPcodeUseropLibrary<byte[]>
* @return the length of the string in bytes
*/
@PcodeUserop
public byte[] print_utf8(@OpState PcodeExecutorStatePiece<byte[], byte[]> state,
byte[] start) {
public byte[] print_utf8(@OpState PcodeExecutorState<byte[]> state, byte[] start) {
long offset = Utils.bytesToLong(start, start.length, language.isBigEndian());
long end = offset;
while (state.getVar(space, end, 1, true)[0] != 0) {