org.graalvm.compiler.hotspot.stubs

Class StubUtil

java.lang.Object

org.graalvm.compiler.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 HotSpotForeignCallDescriptor	VM_MESSAGE_C

Constructor Summary

Constructors

Constructor and Description
StubUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	cAssertionsEnabled(GraalHotSpotVMConfig config) 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.
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 HotSpotForeignCallDescriptor	newDescriptor(HotSpotForeignCallDescriptor.Transition safepoint, HotSpotForeignCallDescriptor.Reexecutability reexecutable, org.graalvm.word.LocationIdentity killLocation, 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 Word	printNumber(Word buffer, long number) Print number as decimal string to buffer.
static Word	printString(Word buffer, String javaString) Copy javaString bytes to the memory location ptr.

Methods inherited from class java.lang.Object

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

Field Detail

VM_MESSAGE_C

public static final HotSpotForeignCallDescriptor VM_MESSAGE_C

Constructor Detail

StubUtil

public StubUtil()

Method Detail

newDescriptor

public static HotSpotForeignCallDescriptor newDescriptor(HotSpotForeignCallDescriptor.Transition safepoint,
                                                         HotSpotForeignCallDescriptor.Reexecutability reexecutable,
                                                         org.graalvm.word.LocationIdentity killLocation,
                                                         Class<?> stubClass,
                                                         String name,
                                                         Class<?> resultType,
                                                         Class<?>... argumentTypes)

cAssertionsEnabled

public static boolean cAssertionsEnabled(GraalHotSpotVMConfig config)

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

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(org.graalvm.compiler.replacements.nodes.CStringConstant, 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

printNumber

public static Word printNumber(Word buffer,
                               long number)

Print number as decimal string to buffer.

Parameters:

buffer -

number -

Returns:

A pointer pointing one byte right after the last printed digit in buffer.

printString

public static Word printString(Word buffer,
                               String javaString)

Copy javaString bytes to the memory location ptr.

Parameters:

buffer -

javaString -

Returns:

A pointer pointing one byte right after the last byte copied from javaString to ptr