mirror of
https://github.com/NationalSecurityAgency/ghidra.git
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93 lines
3.1 KiB
Java
93 lines
3.1 KiB
Java
/* ###
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* IP: GHIDRA
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//Decompile the function at the cursor, then build data-flow graph (AST)
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//@category PCode
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import java.util.List;
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import ghidra.app.decompiler.*;
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import ghidra.app.plugin.core.decompile.actions.PCodeDfgGraphTask;
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import ghidra.app.script.GhidraScript;
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import ghidra.app.services.GraphDisplayBroker;
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import ghidra.framework.plugintool.PluginTool;
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import ghidra.program.model.listing.Function;
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import ghidra.program.model.pcode.HighFunction;
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import ghidra.util.Msg;
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public class GraphASTScript extends GhidraScript {
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private Function func;
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protected HighFunction high;
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private static final String DECOMPILE = "decompile";
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private static final String NORMALIZE = "normalize";
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private static final String PARAM_ID = "paramid";
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private static final String REGISTER = "register";
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private static final String FIRSTPASS = "firstpass";
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private static final String JUMP_TABLE = "jumptable";
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@Override
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public void run() throws Exception {
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PluginTool tool = state.getTool();
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if (tool == null) {
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popup("Script is not running in GUI");
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return;
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}
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GraphDisplayBroker graphDisplayBroker = tool.getService(GraphDisplayBroker.class);
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if (graphDisplayBroker == null) {
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Msg.showError(this, tool.getToolFrame(), "GraphAST Error",
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"No graph display providers found: Please add a graph display provider to your tool");
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return;
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}
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func = this.getFunctionContaining(this.currentAddress);
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if (func == null) {
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Msg.showWarn(this, state.getTool().getToolFrame(), "GraphAST Error",
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"No Function at current location");
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return;
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}
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String style = askChoice("Select Simplification Style", "Select Simplification Style",
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List.of(DECOMPILE, FIRSTPASS, JUMP_TABLE, NORMALIZE, PARAM_ID, REGISTER), DECOMPILE);
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buildAST(style);
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PCodeDfgGraphTask astGraphTask = createTask(graphDisplayBroker);
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astGraphTask.monitoredRun(monitor);
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}
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protected PCodeDfgGraphTask createTask(GraphDisplayBroker graphDisplayBroker) {
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return new PCodeDfgGraphTask(state.getTool(), graphDisplayBroker, high);
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}
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private void buildAST(String style) throws DecompileException {
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DecompileOptions options = new DecompileOptions();
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DecompInterface ifc = new DecompInterface();
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try {
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ifc.setOptions(options);
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if (!ifc.openProgram(this.currentProgram)) {
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throw new DecompileException("Decompiler",
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"Unable to initialize: " + ifc.getLastMessage());
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}
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ifc.setSimplificationStyle(style);
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DecompileResults res = ifc.decompileFunction(func, 30, null);
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high = res.getHighFunction();
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}
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finally {
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ifc.dispose();
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}
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}
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}
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