com.oracle.graal.hotspot.stubs

Class StubUtil

java.lang.Object

com.oracle.graal.hotspot.stubs.StubUtil

public class StubUtil
extends Object

A collection of methods used in Stubs.

Field Summary

Fields

Modifier and Type	Field and Description
static ForeignCallDescriptor	VM_MESSAGE_C

Constructor Summary

Constructors

Constructor and Description
StubUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	cAssertionsEnabled() Determines if this is a HotSpot build where the ASSERT mechanism is enabled.
static void	decipher(long value) Analyzes a given value and prints information about it to the log stream.
private static ForeignCallDescriptor	descriptorFor(Class<?> stubClass, String name) Looks for a StubForeignCallNode node intrinsic named name in stubClass and returns a ForeignCallDescriptor based on its signature and the value of hasSideEffect.
static void	fatal(String message) Exits the VM with a given error message.
static void	fatal(String format, long value) Exits the VM with a given error message.
static void	fatal(String format, long v1, long v2) Exits the VM with a given error message.
static void	fatal(String format, long v1, long v2, long v3) Exits the VM with a given error message.
static void	handlePendingException(Word thread, boolean isObjectResult)
private static int	hubOffset()
static ForeignCallDescriptor	newDescriptor(Class<?> stubClass, String name, Class<?> resultType, Class<?>... argumentTypes)
static void	printf(String message) Prints a message to the log stream.
static void	printf(String format, long value) Prints a message to the log stream.
static void	printf(String format, long v1, long v2) Prints a message to the log stream.
static void	printf(String format, long v1, long v2, long v3) Prints a message to the log stream.
static Object	verifyObject(Object object) Verifies that a given object value is well formed if -XX:+VerifyOops is enabled.
private static long	verifyOopBits()
private static long	verifyOopCounterAddress()
private static long	verifyOopMask()
private static void	vmMessageC(ForeignCallDescriptor stubPrintfC, boolean vmError, Word format, long v1, long v2, long v3)

Methods inherited from class java.lang.Object

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

Field Detail

VM_MESSAGE_C

public static final ForeignCallDescriptor VM_MESSAGE_C

Constructor Detail

StubUtil

public StubUtil()

Method Detail

newDescriptor

public static ForeignCallDescriptor newDescriptor(Class<?> stubClass,
                                                  String name,
                                                  Class<?> resultType,
                                                  Class<?>... argumentTypes)

descriptorFor

private static ForeignCallDescriptor descriptorFor(Class<?> stubClass,
                                                   String name)

Looks for a StubForeignCallNode node intrinsic named name in stubClass and returns a ForeignCallDescriptor based on its signature and the value of hasSideEffect.

handlePendingException

public static void handlePendingException(Word thread,
                                          boolean isObjectResult)

cAssertionsEnabled

public static boolean cAssertionsEnabled()

Determines if this is a HotSpot build where the ASSERT mechanism is enabled.

vmMessageC

private static void vmMessageC(ForeignCallDescriptor stubPrintfC,
                               boolean vmError,
                               Word format,
                               long v1,
                               long v2,
                               long v3)

printf

public static void printf(String message)

Prints a message to the log stream.

Stubs must use this instead of Log.printf(String, long) to avoid an object constant in a RuntimeStub.

Parameters:

message - a message string

printf

public static void printf(String format,
                          long value)

Prints a message to the log stream.

Stubs must use this instead of Log.printf(String, long) to avoid an object constant in a RuntimeStub.

Parameters:

format - a C style printf format value

value - the value associated with the first conversion specifier in format

printf

public static void printf(String format,
                          long v1,
                          long v2)

Prints a message to the log stream.

Stubs must use this instead of Log.printf(String, long, long) to avoid an object constant in a RuntimeStub.

Parameters:

format - a C style printf format value

v1 - the value associated with the first conversion specifier in format

v2 - the value associated with the second conversion specifier in format

printf

public static void printf(String format,
                          long v1,
                          long v2,
                          long v3)

Prints a message to the log stream.

Stubs must use this instead of Log.printf(String, long, long, long) to avoid an object constant in a RuntimeStub.

Parameters:

format - a C style printf format value

v1 - the value associated with the first conversion specifier in format

v2 - the value associated with the second conversion specifier in format

v3 - the value associated with the third conversion specifier in format

decipher

public static void decipher(long value)

Analyzes a given value and prints information about it to the log stream.

fatal

public static void fatal(String message)

Exits the VM with a given error message.

Stubs must use this instead of VMErrorNode.vmError(String, long) to avoid an object constant in a RuntimeStub.

Parameters:

message - an error message

fatal

public static void fatal(String format,
                         long value)

Exits the VM with a given error message.

Stubs must use this instead of Log.printf(String, long, long, long) to avoid an object constant in a RuntimeStub.

Parameters:

format - a C style printf format value

value - the value associated with the first conversion specifier in format

fatal

public static void fatal(String format,
                         long v1,
                         long v2)

Exits the VM with a given error message.

Stubs must use this instead of Log.printf(String, long, long, long) to avoid an object constant in a RuntimeStub.

Parameters:

format - a C style printf format value

v1 - the value associated with the first conversion specifier in format

v2 - the value associated with the second conversion specifier in format

fatal

public static void fatal(String format,
                         long v1,
                         long v2,
                         long v3)

Exits the VM with a given error message.

Stubs must use this instead of Log.printf(String, long, long, long) to avoid an object constant in a RuntimeStub.

Parameters:

format - a C style printf format value

v1 - the value associated with the first conversion specifier in format

v2 - the value associated with the second conversion specifier in format

v3 - the value associated with the third conversion specifier in format

verifyObject

public static Object verifyObject(Object object)

Verifies that a given object value is well formed if -XX:+VerifyOops is enabled.

verifyOopCounterAddress

private static long verifyOopCounterAddress()

verifyOopMask

private static long verifyOopMask()

verifyOopBits

private static long verifyOopBits()

hubOffset

private static int hubOffset()