com.oracle.svm.core

Class SubstrateUtil

java.lang.Object

com.oracle.svm.core.SubstrateUtil

public class SubstrateUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SubstrateUtil.DiagnosticThunk The functional interface for a "thunk" that does not allocate.
static class	SubstrateUtil.DiagnosticThunkRegister
static interface	SubstrateUtil.Thunk The functional interface for a "thunk".

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	HOSTED Field that is true during native image generation, but false at run time.

Constructor Summary

Constructors

Constructor and Description
SubstrateUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	assertionsEnabled() Checks whether assertions are enabled in the VM.
static void	breakpoint(Object arg0)
static String	getArchitectureName()
static String[]	getArgs(int argc, org.graalvm.nativeimage.c.type.CCharPointerPointer argv) Convert C-style to Java-style command line arguments.
static FileDescriptor	getFileDescriptor(FileOutputStream out)
static boolean	isPowerOf2(long value) Fast power of 2 test.
static void	printDiagnostics(Log log, org.graalvm.word.Pointer sp, org.graalvm.nativeimage.c.function.CodePointer ip) Prints extensive diagnostic information to the given Log.
static org.graalvm.word.UnsignedWord	strlen(org.graalvm.nativeimage.c.type.CCharPointer str) Returns the length of a C char* string.

Methods inherited from class java.lang.Object

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

Field Detail

HOSTED

public static final boolean HOSTED

Field that is true during native image generation, but false at run time.

Constructor Detail

SubstrateUtil

public SubstrateUtil()

Method Detail

getArchitectureName

public static String getArchitectureName()

getFileDescriptor

public static FileDescriptor getFileDescriptor(FileOutputStream out)

getArgs

public static String[] getArgs(int argc,
                               org.graalvm.nativeimage.c.type.CCharPointerPointer argv)

Convert C-style to Java-style command line arguments. The first C-style argument, which is always the executable file name, is ignored.

Parameters:

argc - the number of arguments in the argv array.

argv - a C char**.

Returns:

the command line argument strings in a Java string array.

strlen

public static org.graalvm.word.UnsignedWord strlen(org.graalvm.nativeimage.c.type.CCharPointer str)

Returns the length of a C char* string.

assertionsEnabled

public static boolean assertionsEnabled()

Checks whether assertions are enabled in the VM.

Returns:

true if assertions are enabled.

breakpoint

public static void breakpoint(Object arg0)

isPowerOf2

public static boolean isPowerOf2(long value)

Fast power of 2 test.

printDiagnostics

public static void printDiagnostics(Log log,
                                    org.graalvm.word.Pointer sp,
                                    org.graalvm.nativeimage.c.function.CodePointer ip)

Prints extensive diagnostic information to the given Log.