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Code Issues Releases Wiki Activity

GT-3591 force language recompile if slaspec incorrect version

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ghidra1 2020-03-25 09:56:44 -04:00
parent 2936493408
commit cdcd6fbac0
1 changed files with 58 additions and 32 deletions
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90
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SleighLanguage.java
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@ -127,7 +127,11 @@ public class SleighLanguage implements Language {
// for now we'll assume yes.
contextcache = new ContextCache();
ResourceFile slaFile = ensureSpecificationIsCompiled(langDescription);
ResourceFile slaFile = langDescription.getSlaFile();
if (!slaFile.exists() ||
(slaFile.canWrite() && (isSLAWrongVersion(slaFile) || isSLAStale(slaFile)))) {
reloadLanguage(TaskMonitor.DUMMY, true);
}
// Read in the sleigh specification
readSpecification(slaFile);
@ -144,38 +148,60 @@ public class SleighLanguage implements Language {
initParallelHelper();
}
private ResourceFile ensureSpecificationIsCompiled(SleighLanguageDescription langDescription)
throws IOException {
ResourceFile slaFile = langDescription.getSlaFile();
if (!slaFile.exists()) {
reloadLanguage(TaskMonitor.DUMMY, true);
}
else {
String slafilename = slaFile.getName();
int index = slafilename.lastIndexOf('.');
String slabase = slafilename.substring(0, index);
String slaspecfilename = slabase + ".slaspec";
ResourceFile slaspecFile = new ResourceFile(slaFile.getParentFile(), slaspecfilename);
if (slaspecFile.canWrite()) {
File resourceAsFile = slaspecFile.getFile(true);
SleighPreprocessor preprocessor =
new SleighPreprocessor(new ModuleDefinitionsAdapter(), resourceAsFile);
long sourceTimestamp = Long.MAX_VALUE;
try {
sourceTimestamp = preprocessor.scanForTimestamp();
}
catch (Exception e) {
// squash the error because we will force recompilation and errors
// will propagate elsewhere
}
long compiledTimestamp = slaFile.lastModified();
if (sourceTimestamp > compiledTimestamp) {
reloadLanguage(TaskMonitor.DUMMY, true);
}
}
}
private boolean isSLAWrongVersion(ResourceFile slaFile) {
return slaFile;
try {
XmlPullParser parser = XmlPullParserFactory.create(slaFile, new ErrorHandler() {
@Override
public void warning(SAXParseException exception) throws SAXException {
// ignore
}
@Override
public void fatalError(SAXParseException exception) throws SAXException {
throw exception;
}
@Override
public void error(SAXParseException exception) throws SAXException {
throw exception;
}
}, false);
XmlElement e = parser.peek();
if (!"sleigh".equals(e.getName())) {
return true;
}
int version = SpecXmlUtils.decodeInt(e.getAttribute("version"));
return (version != SLA_FORMAT_VERSION);
}
catch (SAXException | IOException e) {
return true;
}
}
private boolean isSLAStale(ResourceFile slaFile) {
String slafilename = slaFile.getName();
int index = slafilename.lastIndexOf('.');
String slabase = slafilename.substring(0, index);
String slaspecfilename = slabase + ".slaspec";
ResourceFile slaspecFile = new ResourceFile(slaFile.getParentFile(), slaspecfilename);
File resourceAsFile = slaspecFile.getFile(true);
SleighPreprocessor preprocessor =
new SleighPreprocessor(new ModuleDefinitionsAdapter(), resourceAsFile);
long sourceTimestamp = Long.MAX_VALUE;
try {
sourceTimestamp = preprocessor.scanForTimestamp();
}
catch (Exception e) {
// squash the error because we will force recompilation and errors
// will propagate elsewhere
}
long compiledTimestamp = slaFile.lastModified();
return (sourceTimestamp > compiledTimestamp);
}
/**