// RedefineClasses() API support:
// If this constantPoolCacheEntry refers to old_method then update it
// to refer to new_method.
bool ConstantPoolCacheEntry::adjust_method_entry(methodOop old_method,
methodOop new_method, bool * trace_name_printed) {
if (is_vfinal()) {
// virtual and final so _f2 contains method ptr instead of vtable index
if (f2_as_vfinal_method() == old_method) {
// match old_method so need an update
// NOTE: can't use set_f2_as_vfinal_method as it asserts on different values
_f2 = (intptr_t)new_method;
if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
if (!(*trace_name_printed)) {
// RC_TRACE_MESG macro has an embedded ResourceMark
RC_TRACE_MESG(("adjust: name=%s",
Klass::cast(old_method->method_holder())->external_name()));
*trace_name_printed = true;
}
// RC_TRACE macro has an embedded ResourceMark
RC_TRACE(0x00400000, ("cpc vf-entry update: %s(%s)",
new_method->name()->as_C_string(),
new_method->signature()->as_C_string()));
}
return true;
}
// f1() is not used with virtual entries so bail out
return false;
}
if ((oop)_f1 == NULL) {
// NULL f1() means this is a virtual entry so bail out
// We are assuming that the vtable index does not need change.
return false;
}
if ((oop)_f1 == old_method) {
_f1 = new_method;
if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
if (!(*trace_name_printed)) {
// RC_TRACE_MESG macro has an embedded ResourceMark
RC_TRACE_MESG(("adjust: name=%s",
Klass::cast(old_method->method_holder())->external_name()));
*trace_name_printed = true;
}
// RC_TRACE macro has an embedded ResourceMark
RC_TRACE(0x00400000, ("cpc entry update: %s(%s)",
new_method->name()->as_C_string(),
new_method->signature()->as_C_string()));
}
return true;
}
return false;
}
void vmIntrinsics::verify_method(ID actual_id, methodOop m) {
Symbol* mk = Klass::cast(m->method_holder())->name();
ID declared_id = match_method_with_klass(m, mk);
if (declared_id == actual_id) return; // success
if (declared_id == _none && actual_id != _none && mk == vmSymbols::java_lang_StrictMath()) {
// Here are a few special cases in StrictMath not declared in vmSymbols.hpp.
switch (actual_id) {
case _min:
case _max:
case _dsqrt:
declared_id = match_method_with_klass(m, vmSymbols::java_lang_Math());
if (declared_id == actual_id) return; // acceptable alias
break;
}
}
const char* declared_name = name_at(declared_id);
const char* actual_name = name_at(actual_id);
methodHandle mh = m;
m = NULL;
ttyLocker ttyl;
if (xtty != NULL) {
xtty->begin_elem("intrinsic_misdeclared actual='%s' declared='%s'",
actual_name, declared_name);
xtty->method(mh);
xtty->end_elem("");
}
if (PrintMiscellaneous && (WizardMode || Verbose)) {
tty->print_cr("*** misidentified method; %s(%d) should be %s(%d):",
declared_name, declared_id, actual_name, actual_id);
mh()->print_short_name(tty);
tty->cr();
}
}
