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implement impdep1 instruction for lazily loading bootstrap classes

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This commit is contained in:
Joel Dice
2007-11-05 08:29:43 -07:00
parent 6c0e0c37e2
commit 19d36cc463
5 changed files with 38 additions and 6 deletions
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37
src/interpret.cpp
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@ -1082,8 +1082,9 @@ interpret(Thread* t)
(t, className(t, objectClass(t, peekObject(t, sp - 1))), 0),
&byteArrayBody(t, className(t, class_), 0));
exception = makeClassCastException(t, message);
goto throw_;
}
if (UNLIKELY(exception)) goto throw_;
}
} goto loop;
@ -1784,6 +1785,8 @@ interpret(Thread* t)
} else {
pushInt(t, 0);
}
if (UNLIKELY(exception)) goto throw_;
} else {
popObject(t);
pushInt(t, 0);
@ -1851,6 +1854,10 @@ interpret(Thread* t)
object method = resolveMethod(t, codePool(t, code), index - 1);
if (UNLIKELY(exception)) goto throw_;
fprintf(stderr, "invokevirtual %s.%s\n",
&byteArrayBody(t, className(t, methodClass(t, method)), 0),
&byteArrayBody(t, methodName(t, method), 0));
unsigned parameterFootprint = methodParameterFootprint(t, method);
if (LIKELY(peekObject(t, sp - parameterFootprint))) {
@ -2571,9 +2578,27 @@ interpret(Thread* t)
case impdep1: {
// this means we're invoking a virtual method on an instance of a
// bootstrap class, so we need to load the real class.
abort(t);
} break;
// bootstrap class, so we need to load the real class to get the
// real method and call it.
assert(t, frameNext(t, frame) >= base);
popFrame(t);
assert(t, codeBody(t, code, ip - 3) == invokevirtual);
ip -= 2;
uint16_t index = codeReadInt16(t, code, ip);
object method = resolveMethod(t, codePool(t, code), index - 1);
unsigned parameterFootprint = methodParameterFootprint(t, method);
object class_ = objectClass(t, peekObject(t, sp - parameterFootprint));
assert(t, classVmFlags(t, class_) & BootstrapFlag);
resolveClass(t, className(t, class_));
if (UNLIKELY(exception)) goto throw_;
ip -= 3;
} goto loop;
default: abort(t);
}
@ -2738,6 +2763,10 @@ invoke(Thread* t, object method)
unsigned parameterFootprint = methodParameterFootprint(t, method);
class_ = objectClass(t, peekObject(t, t->sp - parameterFootprint));
if (classVmFlags(t, class_) & BootstrapFlag) {
resolveClass(t, className(t, class_));
}
if (classFlags(t, methodClass(t, method)) & ACC_INTERFACE) {
method = findInterfaceMethod(t, method, class_);
} else {