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src/share/vm/runtime/javaCalls.cpp
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@@ -39,21 +39,25 @@
#include "runtime/mutexLocker.hpp"
#include "runtime/os.inline.hpp"
#include "runtime/signature.hpp"
#include "runtime/stubRoutines.hpp"
#include "runtime/thread.inline.hpp"
+#if INCLUDE_JVMCI
+#include "jvmci/jvmciJavaClasses.hpp"
+#include "jvmci/jvmciRuntime.hpp"
+#endif
// -----------------------------------------------------
// Implementation of JavaCallWrapper
JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) {
JavaThread* thread = (JavaThread *)THREAD;
bool clear_pending_exception = true;
guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code");
assert(!thread->owns_locks(), "must release all locks when leaving VM");
- guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler");
+ guarantee(thread->can_call_java(), "cannot make java calls from the native compiler");
_result = result;
// Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub,
// since it can potentially block.
JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
@@ -307,23 +311,31 @@
assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here");
CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();)
- // Verify the arguments
+#if INCLUDE_JVMCI
+ // Gets the nmethod (if any) that should be called instead of normal target
+ nmethod* alternative_target = args->alternative_target();
+ if (alternative_target == NULL) {
+#endif
+// Verify the arguments
if (CheckJNICalls) {
args->verify(method, result->get_type(), thread);
}
else debug_only(args->verify(method, result->get_type(), thread));
+#if INCLUDE_JVMCI
+ }
+#else
// Ignore call if method is empty
if (method->is_empty_method()) {
assert(result->get_type() == T_VOID, "an empty method must return a void value");
return;
}
-
+#endif
#ifdef ASSERT
{ InstanceKlass* holder = method->method_holder();
// A klass might not be initialized since JavaCall's might be used during the executing of
// the <clinit>. For example, a Thread.start might start executing on an object that is
@@ -331,11 +343,11 @@
assert(holder->is_linked(), "rewriting must have taken place");
}
#endif
- assert(!thread->is_Compiler_thread(), "cannot compile from the compiler");
+ assert(thread->can_call_java(), "cannot compile from the native compiler");
if (CompilationPolicy::must_be_compiled(method)) {
CompileBroker::compile_method(method, InvocationEntryBci,
CompilationPolicy::policy()->initial_compile_level(),
methodHandle(), 0, "must_be_compiled", CHECK);
}
@@ -375,10 +387,21 @@
} else {
// Touch pages checked if the OS needs them to be touched to be mapped.
os::bang_stack_shadow_pages();
}
+#if INCLUDE_JVMCI
+ if (alternative_target != NULL) {
+ if (alternative_target->is_alive()) {
+ thread->set_jvmci_alternate_call_target(alternative_target->verified_entry_point());
+ entry_point = method->adapter()->get_i2c_entry();
+ } else {
+ THROW(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException());
+ }
+ }
+#endif
+
// do call
{ JavaCallWrapper link(method, receiver, result, CHECK);
{ HandleMark hm(thread); // HandleMark used by HandleMarkCleaner
StubRoutines::call_stub()(
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