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8154172: C1: NPE is thrown instead of linkage error when invoking nonexistent method

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Reviewed-by: kvn
This commit is contained in:
Vladimir Ivanov 2016-04-25 21:25:22 +03:00
parent e17b342749
commit 67ff4391ec
3 changed files with 231 additions and 48 deletions
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82
hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
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@ -1742,25 +1742,14 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
const Bytecodes::Code bc_raw = stream()->cur_bc_raw();
assert(declared_signature != NULL, "cannot be null");
// we have to make sure the argument size (incl. the receiver)
// is correct for compilation (the call would fail later during
// linkage anyway) - was bug (gri 7/28/99)
{
// Use raw to get rewritten bytecode.
const bool is_invokestatic = bc_raw == Bytecodes::_invokestatic;
const bool allow_static =
is_invokestatic ||
bc_raw == Bytecodes::_invokehandle ||
bc_raw == Bytecodes::_invokedynamic;
if (target->is_loaded()) {
if (( target->is_static() && !allow_static) ||
(!target->is_static() && is_invokestatic)) {
BAILOUT("will cause link error");
}
}
}
ciInstanceKlass* klass = target->holder();
// Make sure there are no evident problems with linking the instruction.
bool is_resolved = true;
if (klass->is_loaded() && !target->is_loaded()) {
is_resolved = false; // method not found
}
// check if CHA possible: if so, change the code to invoke_special
ciInstanceKlass* calling_klass = method()->holder();
ciInstanceKlass* callee_holder = ciEnv::get_instance_klass_for_declared_method_holder(holder);
@ -1804,10 +1793,6 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
apush(arg);
}
// NEEDS_CLEANUP
// I've added the target->is_loaded() test below but I don't really understand
// how klass->is_loaded() can be true and yet target->is_loaded() is false.
// this happened while running the JCK invokevirtual tests under doit. TKR
ciMethod* cha_monomorphic_target = NULL;
ciMethod* exact_target = NULL;
Value better_receiver = NULL;
@ -1931,12 +1916,11 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
}
// check if we could do inlining
if (!PatchALot && Inline && klass->is_loaded() &&
if (!PatchALot && Inline && is_resolved &&
klass->is_loaded() && target->is_loaded() &&
(klass->is_initialized() || klass->is_interface() && target->holder()->is_initialized())
&& target->is_loaded()
&& !patch_for_appendix) {
// callee is known => check if we have static binding
assert(target->is_loaded(), "callee must be known");
if (code == Bytecodes::_invokestatic ||
code == Bytecodes::_invokespecial ||
code == Bytecodes::_invokevirtual && target->is_final_method() ||
@ -1993,7 +1977,7 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
// Currently only supported on Sparc.
// The UseInlineCaches only controls dispatch to invokevirtuals for
// loaded classes which we weren't able to statically bind.
if (!UseInlineCaches && is_loaded && code == Bytecodes::_invokevirtual
if (!UseInlineCaches && is_resolved && is_loaded && code == Bytecodes::_invokevirtual
&& !target->can_be_statically_bound()) {
// Find a vtable index if one is available
// For arrays, callee_holder is Object. Resolving the call with
@ -2006,35 +1990,37 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
}
#endif
if (recv != NULL &&
(code == Bytecodes::_invokespecial ||
!is_loaded || target->is_final())) {
// invokespecial always needs a NULL check. invokevirtual where
// the target is final or where it's not known that whether the
// target is final requires a NULL check. Otherwise normal
// invokevirtual will perform the null check during the lookup
// logic or the unverified entry point. Profiling of calls
// requires that the null check is performed in all cases.
null_check(recv);
}
if (is_resolved) {
// invokespecial always needs a NULL check. invokevirtual where the target is
// final or where it's not known whether the target is final requires a NULL check.
// Otherwise normal invokevirtual will perform the null check during the lookup
// logic or the unverified entry point. Profiling of calls requires that
// the null check is performed in all cases.
bool do_null_check = (recv != NULL) &&
(code == Bytecodes::_invokespecial || !is_loaded || target->is_final() || (is_profiling() && profile_calls()));
if (is_profiling()) {
if (recv != NULL && profile_calls()) {
if (do_null_check) {
null_check(recv);
}
// Note that we'd collect profile data in this method if we wanted it.
compilation()->set_would_profile(true);
if (profile_calls()) {
assert(cha_monomorphic_target == NULL || exact_target == NULL, "both can not be set");
ciKlass* target_klass = NULL;
if (cha_monomorphic_target != NULL) {
target_klass = cha_monomorphic_target->holder();
} else if (exact_target != NULL) {
target_klass = exact_target->holder();
if (is_profiling()) {
// Note that we'd collect profile data in this method if we wanted it.
compilation()->set_would_profile(true);
if (profile_calls()) {
assert(cha_monomorphic_target == NULL || exact_target == NULL, "both can not be set");
ciKlass* target_klass = NULL;
if (cha_monomorphic_target != NULL) {
target_klass = cha_monomorphic_target->holder();
} else if (exact_target != NULL) {
target_klass = exact_target->holder();
}
profile_call(target, recv, target_klass, collect_args_for_profiling(args, NULL, false), false);
}
profile_call(target, recv, target_klass, collect_args_for_profiling(args, NULL, false), false);
}
} else {
// No need in null check or profiling: linkage error will be thrown at runtime
// during resolution.
}
Invoke* result = new Invoke(code, result_type, recv, args, vtable_index, target, state_before);