public void compile(Clazz clazz) throws IOException {
reset();
File llFile = config.getLlFile(clazz);
File bcFile = config.getBcFile(clazz);
File sFile = config.getSFile(clazz);
File oFile = config.getOFile(clazz);
llFile.getParentFile().mkdirs();
bcFile.getParentFile().mkdirs();
sFile.getParentFile().mkdirs();
oFile.getParentFile().mkdirs();
OutputStream out = null;
try {
config.getLogger().debug("Compiling %s", clazz);
out = new FileOutputStream(llFile);
compile(clazz, out);
} catch (Throwable t) {
FileUtils.deleteQuietly(llFile);
if (t instanceof IOException) {
throw (IOException) t;
}
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
throw new RuntimeException(t);
} finally {
IOUtils.closeQuietly(out);
}
config.getLogger().debug("Optimizing %s", clazz);
CompilerUtil.opt(config, llFile, bcFile, "-mem2reg", "-always-inline");
config.getLogger().debug("Generating %s assembly for %s", config.getArch(), clazz);
CompilerUtil.llc(config, bcFile, sFile);
patchAsmWithFunctionSizes(clazz, sFile);
config.getLogger().debug("Assembling %s", clazz);
CompilerUtil.assemble(config, sFile, oFile);
}
public boolean mustCompile(Clazz clazz) {
File oFile = config.getOFile(clazz);
if (!oFile.exists() || oFile.lastModified() < clazz.lastModified()) {
return true;
}
Set<Dependency> dependencies = clazz.getDependencies();
for (Dependency dep : dependencies) {
Clazz depClazz = config.getClazzes().load(dep.getClassName());
if (depClazz == null) {
if (dep.getPath() != null) {
// depClazz was available the last time clazz was compiled but is now gone
return true;
}
} else {
if (dep.getPath() == null) {
// depClazz was not available the last time clazz was compiled but is now available
return true;
}
if (!dep.getPath().equals(depClazz.getPath().getFile().getAbsolutePath())) {
// depClazz was located in another place the last time clazz was built
return true;
}
if (depClazz.isInBootClasspath() != dep.isInBootClasspath()) {
// depClazz has moved to/from the bootclasspath since the last time clazz was built
return true;
}
if (depClazz.lastModified() > oFile.lastModified()) {
// depClazz has been changed since the last time clazz was built
return true;
}
}
}
// No class or interface has zero dependencies (we always add java.lang.Object as a dependency)
// If dependencies is empty it probably means that an error occurred while reading the
// serialized dependencies. By returning true here in that case the class will be recompiled
// and the dependencies regenerated.
return dependencies.isEmpty();
}
