OpenJDK 1.22 · jdk.vm.ci.hotspot.HotSpotCompiledCodeStream

Modifier and Type	Class and Description
pack-priv static class	HotSpotCompiledCodeStream.IdentityBox Alternative to using `IdentityHashMap` which would require dealing with the `IdentityHashMap#NULL_KEY` constant.
pack-priv static enum	HotSpotCompiledCodeStream.Tag

Field Summary

Modifier and Type	Field and Description
private Object	codeDesc Lazily initialized string from `HotSpotCompiledCode#name` or `HotSpotCompiledNmethod#method`.
private long	currentChunk
private int	currentChunkIndex Index of current chunk.
private int	currentChunkOffset Insertion position in current chunk.
private int	currentChunkSize Size of current chunk.
private static final int	DURING_CALL
private static final int	HAS_ASSUMPTIONS
private static final int	HAS_CALLEE_SAVE_INFO
private static final int	HAS_COMMENTS
private static final int	HAS_DEOPT_RESCUE_SLOT
private static final int	HAS_FRAMES
private static final int	HAS_LOCALS
private static final int	HAS_LOCKS
private static final int	HAS_METHODS
private static final int	HAS_REFERENCE_MAP
private static final int	HAS_STACK
pack-priv final long	headChunk Head and current chunk.
private static final int	HEADER
private static final int	INITIAL_CHUNK_SIZE
private static final int	IS_NMETHOD
private static final int	MARK_INVOKEINTERFACE
private static final int	MARK_INVOKESPECIAL
private static final int	MARK_INVOKESTATIC
private static final int	MARK_INVOKEVIRTUAL
private static final int	NO_REGISTER
pack-priv final Object[]	objectPool
private HashMap<HotSpotCompiledCodeStream.IdentityBox, Integer>	objects
private static final int	RETHROW_EXCEPTION
private final HotSpotJVMCIRuntime	runtime
pack-priv long	timeNS Nanoseconds spent in `HotSpotCompiledCodeStream#HotSpotCompiledCodeStream`.
private final Unsafe	unsafe
private final boolean	withTypeInfo Specifies if the name and size of each data element is written to the buffer.

Access	Constructor and Description
pack-priv	HotSpotCompiledCodeStream(HotSpotCompiledCode the object to serialize code, boolean see `Option#CodeSerializationTypeInfo` withTypeInfo, boolean include `HotSpotCompiledCode#comments` in the stream withComments, boolean include `HotSpotCompiledCode#methods` in the stream withMethods) Serializes .

Method Summary

Modifier and Type	Method and Description
private void	beforeWrite(String name of data element to be written name, int the size of the data element to be written sizeInBytes) Emits type info for a write to the buffer and ensures there's sufficient capacity.
private static int	c(String name)
public void	close() Implements java.lang.AutoCloseable.close. Closes this resource, relinquishing any underlying resources.
private String	codeDesc()
private void	dump(String dumpName)
private void	emitType(String name, int sizeInBytes) Emits the name and size in bytes of a data element if type info is enabled.
private void	ensureCapacity(int toWrite) Ensures there is capacity for appending `toWrite` additional bytes.
private JVMCIError	error(String format, Object... args)
private Object[]	finalizeObjectPool() Creates the pool for `DirectHotSpotObjectConstantImpl` values written to the stream.
private long	getChunkNext(long chunk) Reads the pointer in chunk pointing to the next chunk in the list.
private int	getDataSize(long chunk) Reads the size of the payload in `chunk`.
private int	getTotalDataSize() Gets the size of payload data in the buffer.
private static void	hexdump(PrintStream out, long address, byte[] data)
private boolean	isNarrowOop(Value oopValue)
private static boolean	isSet(int flags, int bit)
private static boolean	isU1(int value)
private boolean	isVector(Value value)
private void	maybeDump(String name, HotSpotCompiledNmethod nmethod) Dumps the buffer to TTY if `name` or `method` are matched by `Option#DumpSerializedCode`.
private void	rawWriteU2(String name, int value)
private void	setChunkNext(long chunk, long next) Writes the pointer in chunk pointing to the next chunk in the list.
private void	setDataSize(long chunk, int size) Writes the size of the payload in `chunk`.
private static int	setIf(int flag, Object[] array) Returns `flag` if `condition == true` else `0`.
private static int	setIf(int flag, boolean condition) Returns `flag` if `condition == true` else `0`.
private static int	setIf(int flag, int condition) Returns `flag` if `condition != 0` else `0`.
private static String	Returns: the matched value or null if no match was made shouldDump(String name, HotSpotCompiledNmethod nmethod) Determines if `name` or `method` are matched by `Option#DumpSerializedCode`.
private void	writeAssumptions(Assumptions.Assumption[] assumptions)
private void	writeBasicType(JavaKind kind)
private void	writeBoolean(String name, boolean value)
private void	writeCalleeSaveInfo(RegisterSaveLayout calleeSaveInfo)
private void	writeDataPatch(DataPatch patch, HotSpotCompiledCode code)
private void	writeDataSectionPatches(DataPatch[] dataSectionPatches)
private void	writeDebugInfo(DebugInfo debugInfo, boolean fullInfo)
private void	writeFrame(BytecodePosition pos, boolean fullInfo, int depth)
private void	writeInt(String name, int value)
private void	writeJavaValue(JavaValue value, JavaKind kind)
private void	writeLocation(Location loc)
private void	writeLong(String name, long value)
private void	writeMetaspaceConstantPatch(HotSpotMetaspaceConstantImpl metaspaceCon)
private void	writeMethod(String name, ResolvedJavaMethod method)
private int	writeObjectID(DirectHotSpotObjectConstantImpl value, HotSpotCompiledCodeStream.Tag u1Tag, HotSpotCompiledCodeStream.Tag u2Tag)
private void	writeObjectType(String name, ResolvedJavaType type)
private void	writeOopConstantPatch(HotSpotObjectConstantImpl con)
private void	writeReferenceMap(ReferenceMap map)
private void	writeRegister(Register reg)
private void	writeS2(String name, int value)
private void	writeSites(HotSpotCompiledCode code)
private void	writeStubCounts(HotSpotCompiledCode code)
private void	writeTag(HotSpotCompiledCodeStream.Tag tag)
private void	writeU1(String name, int value)
private void	writeU2(String name, int value)
private void	writeUTF8(String name, String value) Writes the UTF8 bytes for `value` to the stream followed by a 0.
private void	writeVirtualObjects(VirtualObject[] virtualObjects)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

pack-priv final Class HotSpotCompiledCodeStream

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary