mirror of
https://github.com/NationalSecurityAgency/ghidra.git
synced 2025-10-03 09:49:23 +02:00
e3b75fe9f7
Refactor the old DWARF line code used by the line analyzer. Fix v4 location list reading when there was an empty range entry. Defer applying the ELF program address fixup value until a DWARF address(held in a long) is converted into a Ghidra address. Fix v5 location list reading - add missing DW_LLE_default_location impl.
76 lines
2.7 KiB
Java
76 lines
2.7 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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// Adds DWARF source file line number info to the current binary
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//@category DWARF
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import java.io.IOException;
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import java.util.List;
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import ghidra.app.script.GhidraScript;
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import ghidra.app.util.bin.BinaryReader;
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import ghidra.app.util.bin.format.dwarf.*;
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import ghidra.app.util.bin.format.dwarf.line.DWARFLine.SourceFileAddr;
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import ghidra.app.util.bin.format.dwarf.sectionprovider.DWARFSectionProvider;
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import ghidra.app.util.bin.format.dwarf.sectionprovider.DWARFSectionProviderFactory;
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import ghidra.program.model.address.Address;
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import ghidra.program.model.listing.CodeUnit;
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import ghidra.util.Msg;
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import ghidra.util.exception.CancelledException;
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public class DWARFLineInfoScript extends GhidraScript {
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@Override
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protected void run() throws Exception {
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DWARFSectionProvider dsp =
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DWARFSectionProviderFactory.createSectionProviderFor(currentProgram, monitor);
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if (dsp == null) {
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printerr("Unable to find DWARF information");
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return;
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}
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DWARFImportOptions importOptions = new DWARFImportOptions();
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try (DWARFProgram dprog = new DWARFProgram(currentProgram, importOptions, monitor, dsp)) {
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dprog.init(monitor);
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addSourceLineInfo(dprog);
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}
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}
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private void addSourceLineInfo(DWARFProgram dprog) throws CancelledException, IOException {
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BinaryReader reader = dprog.getDebugLineBR();
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if (reader == null) {
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return;
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}
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int count = 0;
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monitor.initialize(reader.length(), "DWARF Source Line Info");
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List<DWARFCompilationUnit> compUnits = dprog.getCompilationUnits();
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for (DWARFCompilationUnit cu : compUnits) {
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try {
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monitor.checkCancelled();
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monitor.setProgress(cu.getLine().getStartOffset());
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List<SourceFileAddr> allSFA = cu.getLine().getAllSourceFileAddrInfo(cu, reader);
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for (SourceFileAddr sfa : allSFA) {
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Address addr = dprog.getCodeAddress(sfa.address());
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DWARFUtil.appendComment(currentProgram, addr, CodeUnit.EOL_COMMENT, "",
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"%s:%d".formatted(sfa.fileName(), sfa.lineNum()), ";");
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count++;
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}
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}
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catch (IOException e) {
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Msg.error(this,
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"Failed to read DWARF line info for cu %d".formatted(cu.getUnitNumber()), e);
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}
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}
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println("Marked up " + count + " locations with source info");
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}
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}
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