/**
* Initialize boot image compiler.
*
* @param args command line arguments to the bootimage compiler
*/
protected void initCompiler(String[] args) {
try {
BaselineCompiler.initOptions();
VM.sysWrite("BootImageCompiler: init (opt compiler)\n");
// Writing a boot image is a little bit special. We're not really
// concerned about compile time, but we do care a lot about the quality
// and stability of the generated code. Set the options accordingly.
OptimizingCompiler.setBootOptions(masterOptions);
// Allow further customization by the user.
for (int i = 0, n = args.length; i < n; i++) {
String arg = args[i];
if (!masterOptions.processAsOption("-X:bc:", arg)) {
if (arg.startsWith("exclude=")) {
excludePattern = arg.substring(8);
} else {
VM.sysWrite("BootImageCompiler: Unrecognized argument " + arg + "; ignoring\n");
}
}
}
EdgeCounts.loadCountsFromFileIfAvailable(masterOptions.PROFILE_EDGE_COUNT_INPUT_FILE);
OptimizingCompiler.init(masterOptions);
} catch (OptimizingCompilerException e) {
String msg = "BootImageCompiler: Compiler failed during initialization: " + e + "\n";
if (e.isFatal) {
// An unexpected error when building the opt boot image should be fatal
e.printStackTrace();
System.exit(VM.EXIT_STATUS_OPT_COMPILER_FAILED);
} else {
VM.sysWrite(msg);
}
}
}
private CompiledMethod baselineCompile(NormalMethod method) {
Callbacks.notifyMethodCompile(method, CompiledMethod.BASELINE);
CompiledMethod cm = BaselineCompiler.compile(method);
/* We can't accurately measure compilation time on Host JVM, so just approximate with DNA */
cm.setCompilationTime((float) CompilerDNA.estimateCompileTime(CompilerDNA.BASELINE, method));
return cm;
}