jdk.internal.jvmci.hotspot

Class HotSpotJVMCIRuntime

java.lang.Object

jdk.internal.jvmci.hotspot.HotSpotJVMCIRuntime

All Implemented Interfaces:

HotSpotJVMCIRuntimeProvider, HotSpotProxified, JVMCIRuntime

public final class HotSpotJVMCIRuntime
extends Object
implements HotSpotJVMCIRuntimeProvider, HotSpotProxified

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HotSpotJVMCIRuntime.Options

Field Summary

Fields

Modifier and Type	Field and Description
private Map<Class<? extends Architecture>,JVMCIBackend>	backends
protected CompilerToVM	compilerToVm
protected HotSpotVMConfig	config
private JVMCIBackend	hostBackend
private static HotSpotJVMCIRuntime	instance
private ClassValue<ResolvedJavaType>	jvmciMirrors JVMCI mirrors are stored as a ClassValue associated with the Class of the type.
private Iterable<HotSpotVMEventListener>	vmEventListeners

Constructor Summary

Constructors

Modifier	Constructor and Description
private	HotSpotJVMCIRuntime()

Method Summary

Modifier and Type	Method and Description
private static boolean	checkFactoryOverriding(HotSpotJVMCIBackendFactory baseFactory, HotSpotJVMCIBackendFactory overridingFactory) Checks that a factory overriding is valid.
private void	compileMetaspaceMethod(long metaspaceMethod, int entryBCI, long jvmciEnv, int id) Called from the VM.
private void	compileTheWorld() Called from the VM.
void	completeInitialization() Do deferred initialization.
static HotSpotJVMCIBackendFactory	findFactory(String architecture)
ResolvedJavaType	fromClass(Class<?> javaClass) Gets the JVMCI mirror for a Class object.
Map<Class<? extends Architecture>,JVMCIBackend>	getBackends()
CompilerToVM	getCompilerToVM()
HotSpotVMConfig	getConfig()
JVMCIBackend	getHostJVMCIBackend() Gets the host JVMCI backend.
static Kind	getHostWordKind() Gets the kind of a word value on the host backend.
<T extends Architecture> JVMCIBackend	getJVMCIBackend(Class<T> arch) Gets the backend for a given architecture.
JavaType	lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve) Converts a name to a Java type.
(package private) void	notifyInstall(HotSpotCodeCacheProvider hotSpotCodeCacheProvider, InstalledCode installedCode, CompilationResult compResult) Shuts down the runtime.
private JVMCIBackend	registerBackend(JVMCIBackend backend)
static HotSpotJVMCIRuntime	runtime() Gets the singleton HotSpotJVMCIRuntime object.
private void	shutdown() Shuts down the runtime.
static long	unsafeReadKlassPointer(Object object) Reads a klass pointer from a constant object.
static long	unsafeReadWord(Object object, long offset) Reads a word value from a given object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface jdk.internal.jvmci.hotspot.HotSpotJVMCIRuntimeProvider

getArrayBaseOffset, getArrayIndexScale

Field Detail

instance

private static final HotSpotJVMCIRuntime instance

compilerToVm

protected CompilerToVM compilerToVm

config

protected final HotSpotVMConfig config

hostBackend

private final JVMCIBackend hostBackend

jvmciMirrors

private final ClassValue<ResolvedJavaType> jvmciMirrors

JVMCI mirrors are stored as a ClassValue associated with the Class of the type. This data structure stores both HotSpotResolvedObjectType and HotSpotResolvedPrimitiveType types.

backends

private final Map<Class<? extends Architecture>,JVMCIBackend> backends

vmEventListeners

private final Iterable<HotSpotVMEventListener> vmEventListeners

Constructor Detail

HotSpotJVMCIRuntime

private HotSpotJVMCIRuntime()

Method Detail

runtime

public static HotSpotJVMCIRuntime runtime()

Gets the singleton HotSpotJVMCIRuntime object.

completeInitialization

public void completeInitialization()

Do deferred initialization.

findFactory

public static HotSpotJVMCIBackendFactory findFactory(String architecture)

checkFactoryOverriding

private static boolean checkFactoryOverriding(HotSpotJVMCIBackendFactory baseFactory,
                                              HotSpotJVMCIBackendFactory overridingFactory)

Checks that a factory overriding is valid. A factory B can only override/replace a factory A if the B.getClass() is a subclass of A.getClass(). This models the assumption that B is extends the behavior of A and has therefore understood the behavior expected of A.

Parameters:

baseFactory -

overridingFactory -

getHostWordKind

public static Kind getHostWordKind()

Gets the kind of a word value on the host backend.

unsafeReadKlassPointer

public static long unsafeReadKlassPointer(Object object)

Reads a klass pointer from a constant object.

unsafeReadWord

public static long unsafeReadWord(Object object,
                                  long offset)

Reads a word value from a given object.

registerBackend

private JVMCIBackend registerBackend(JVMCIBackend backend)

fromClass

public ResolvedJavaType fromClass(Class<?> javaClass)

Description copied from interface: HotSpotJVMCIRuntimeProvider

Gets the JVMCI mirror for a Class object.

Specified by:

fromClass in interface HotSpotJVMCIRuntimeProvider

Returns:

the ResolvedJavaType corresponding to javaClass

getConfig

public HotSpotVMConfig getConfig()

Specified by:

getConfig in interface HotSpotJVMCIRuntimeProvider

getCompilerToVM

public CompilerToVM getCompilerToVM()

Specified by:

getCompilerToVM in interface HotSpotJVMCIRuntimeProvider

lookupType

public JavaType lookupType(String name,
                           HotSpotResolvedObjectType accessingType,
                           boolean resolve)

Description copied from interface: HotSpotJVMCIRuntimeProvider

Converts a name to a Java type. This method attempts to resolve name to a ResolvedJavaType.

Specified by:

lookupType in interface HotSpotJVMCIRuntimeProvider

Parameters:

name - a well formed Java type in internal format

accessingType - the context of resolution which must be non-null

resolve - specifies whether resolution failure results in an unresolved type being return or a LinkageError being thrown

Returns:

a Java type for name which is guaranteed to be of type ResolvedJavaType if resolve == true

getHostJVMCIBackend

public JVMCIBackend getHostJVMCIBackend()

Description copied from interface: JVMCIRuntime

Gets the host JVMCI backend.

Specified by:

getHostJVMCIBackend in interface JVMCIRuntime

getJVMCIBackend

public <T extends Architecture> JVMCIBackend getJVMCIBackend(Class<T> arch)

Description copied from interface: JVMCIRuntime

Gets the backend for a given architecture.

Specified by:

getJVMCIBackend in interface JVMCIRuntime

Parameters:

arch - a specific architecture class

getBackends

public Map<Class<? extends Architecture>,JVMCIBackend> getBackends()

compileMetaspaceMethod

private void compileMetaspaceMethod(long metaspaceMethod,
                                    int entryBCI,
                                    long jvmciEnv,
                                    int id)

Called from the VM.

compileTheWorld

private void compileTheWorld()
                      throws Throwable

Called from the VM.

Throws:

Throwable

shutdown

private void shutdown()
               throws Exception

Shuts down the runtime. Called from the VM.

Throws:

Exception

notifyInstall

void notifyInstall(HotSpotCodeCacheProvider hotSpotCodeCacheProvider,
                   InstalledCode installedCode,
                   CompilationResult compResult)

Shuts down the runtime. Called from the VM.

Parameters:

hotSpotCodeCacheProvider -