5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package jdk.vm.ci.hotspot; 24 25 import jdk.vm.ci.common.*; 26 import jdk.vm.ci.compiler.Compiler; 27 import jdk.vm.ci.meta.*; 28 import jdk.vm.ci.runtime.*; 29 import sun.misc.*; 30 31 //JaCoCo Exclude 32 33 /** 34 * Configuration information for the HotSpot JVMCI runtime. 35 */ 36 public interface HotSpotJVMCIRuntimeProvider extends JVMCIRuntime { 37 38 HotSpotVMConfig getConfig(); 39 40 CompilerToVM getCompilerToVM(); 41 42 Compiler getCompiler(); 43 44 /** 45 * Converts a name to a Java type. This method attempts to resolve {@code name} to a 46 * {@link ResolvedJavaType}. 47 * 48 * @param name a well formed Java type in {@linkplain JavaType#getName() internal} format 49 * @param accessingType the context of resolution which must be non-null 50 * @param resolve specifies whether resolution failure results in an unresolved type being 51 * return or a {@link LinkageError} being thrown 52 * @return a Java type for {@code name} which is guaranteed to be of type 53 * {@link ResolvedJavaType} if {@code resolve == true} 54 * @throws LinkageError if {@code resolve == true} and the resolution failed 55 * @throws NullPointerException if {@code accessingClass} is {@code null} 56 */ 57 JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve); 58 59 /** 60 * Gets the JVMCI mirror for a {@link Class} object. 61 * 62 * @return the {@link ResolvedJavaType} corresponding to {@code javaClass} 63 */ 64 ResolvedJavaType fromClass(Class<?> clazz); 65 66 JVMCIMetaAccessContext getMetaAccessContext(); 67 68 /** 69 * The offset from the origin of an array to the first element. 70 * 71 * @return the offset in bytes 72 */ 73 default int getArrayBaseOffset(JavaKind kind) { 74 switch (kind) { 75 case Boolean: 76 return Unsafe.ARRAY_BOOLEAN_BASE_OFFSET; 77 case Byte: 78 return Unsafe.ARRAY_BYTE_BASE_OFFSET; 79 case Char: 80 return Unsafe.ARRAY_CHAR_BASE_OFFSET; 81 case Short: 82 return Unsafe.ARRAY_SHORT_BASE_OFFSET; 83 case Int: 84 return Unsafe.ARRAY_INT_BASE_OFFSET; 85 case Long: 86 return Unsafe.ARRAY_LONG_BASE_OFFSET; 87 case Float: 88 return Unsafe.ARRAY_FLOAT_BASE_OFFSET; 89 case Double: 90 return Unsafe.ARRAY_DOUBLE_BASE_OFFSET; 91 case Object: 92 return Unsafe.ARRAY_OBJECT_BASE_OFFSET; 93 default: 94 throw new JVMCIError("%s", kind); 95 } 96 } 97 98 /** 99 * The scale used for the index when accessing elements of an array of this kind. 100 * 101 * @return the scale in order to convert the index into a byte offset 102 */ 103 default int getArrayIndexScale(JavaKind kind) { 104 switch (kind) { 105 case Boolean: 106 return Unsafe.ARRAY_BOOLEAN_INDEX_SCALE; 107 case Byte: 108 return Unsafe.ARRAY_BYTE_INDEX_SCALE; 109 case Char: 110 return Unsafe.ARRAY_CHAR_INDEX_SCALE; 111 case Short: 112 return Unsafe.ARRAY_SHORT_INDEX_SCALE; 113 case Int: 114 return Unsafe.ARRAY_INT_INDEX_SCALE; 115 case Long: 116 return Unsafe.ARRAY_LONG_INDEX_SCALE; 117 case Float: 118 return Unsafe.ARRAY_FLOAT_INDEX_SCALE; 119 case Double: 120 return Unsafe.ARRAY_DOUBLE_INDEX_SCALE; 121 case Object: 122 return Unsafe.ARRAY_OBJECT_INDEX_SCALE; 123 default: | 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package jdk.vm.ci.hotspot; 24 25 import java.io.OutputStream; 26 27 import jdk.vm.ci.common.JVMCIError; 28 import jdk.vm.ci.meta.JVMCIMetaAccessContext; 29 import jdk.vm.ci.meta.JavaKind; 30 import jdk.vm.ci.meta.JavaType; 31 import jdk.vm.ci.meta.ResolvedJavaType; 32 import jdk.vm.ci.runtime.JVMCIRuntime; 33 import sun.misc.Unsafe; 34 35 //JaCoCo Exclude 36 37 /** 38 * Configuration information for the HotSpot JVMCI runtime. 39 */ 40 public interface HotSpotJVMCIRuntimeProvider extends JVMCIRuntime { 41 42 HotSpotVMConfig getConfig(); 43 44 CompilerToVM getCompilerToVM(); 45 46 /** 47 * Gets an output stream that writes to the HotSpot's {@code tty} stream. 48 */ 49 OutputStream getLogStream(); 50 51 /** 52 * Converts a name to a Java type. This method attempts to resolve {@code name} to a 53 * {@link ResolvedJavaType}. 54 * 55 * @param name a well formed Java type in {@linkplain JavaType#getName() internal} format 56 * @param accessingType the context of resolution which must be non-null 57 * @param resolve specifies whether resolution failure results in an unresolved type being 58 * return or a {@link LinkageError} being thrown 59 * @return a Java type for {@code name} which is guaranteed to be of type 60 * {@link ResolvedJavaType} if {@code resolve == true} 61 * @throws LinkageError if {@code resolve == true} and the resolution failed 62 * @throws NullPointerException if {@code accessingClass} is {@code null} 63 */ 64 JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve); 65 66 /** 67 * Gets the JVMCI mirror for a {@link Class} object. 68 * 69 * @return the {@link ResolvedJavaType} corresponding to {@code javaClass} 70 */ 71 ResolvedJavaType fromClass(Class<?> clazz); 72 73 JVMCIMetaAccessContext getMetaAccessContext(); 74 75 /** 76 * The offset from the origin of an array to the first element. 77 * 78 * @return the offset in bytes 79 */ 80 static int getArrayBaseOffset(JavaKind kind) { 81 switch (kind) { 82 case Boolean: 83 return Unsafe.ARRAY_BOOLEAN_BASE_OFFSET; 84 case Byte: 85 return Unsafe.ARRAY_BYTE_BASE_OFFSET; 86 case Char: 87 return Unsafe.ARRAY_CHAR_BASE_OFFSET; 88 case Short: 89 return Unsafe.ARRAY_SHORT_BASE_OFFSET; 90 case Int: 91 return Unsafe.ARRAY_INT_BASE_OFFSET; 92 case Long: 93 return Unsafe.ARRAY_LONG_BASE_OFFSET; 94 case Float: 95 return Unsafe.ARRAY_FLOAT_BASE_OFFSET; 96 case Double: 97 return Unsafe.ARRAY_DOUBLE_BASE_OFFSET; 98 case Object: 99 return Unsafe.ARRAY_OBJECT_BASE_OFFSET; 100 default: 101 throw new JVMCIError("%s", kind); 102 } 103 } 104 105 /** 106 * The scale used for the index when accessing elements of an array of this kind. 107 * 108 * @return the scale in order to convert the index into a byte offset 109 */ 110 static int getArrayIndexScale(JavaKind kind) { 111 switch (kind) { 112 case Boolean: 113 return Unsafe.ARRAY_BOOLEAN_INDEX_SCALE; 114 case Byte: 115 return Unsafe.ARRAY_BYTE_INDEX_SCALE; 116 case Char: 117 return Unsafe.ARRAY_CHAR_INDEX_SCALE; 118 case Short: 119 return Unsafe.ARRAY_SHORT_INDEX_SCALE; 120 case Int: 121 return Unsafe.ARRAY_INT_INDEX_SCALE; 122 case Long: 123 return Unsafe.ARRAY_LONG_INDEX_SCALE; 124 case Float: 125 return Unsafe.ARRAY_FLOAT_INDEX_SCALE; 126 case Double: 127 return Unsafe.ARRAY_DOUBLE_INDEX_SCALE; 128 case Object: 129 return Unsafe.ARRAY_OBJECT_INDEX_SCALE; 130 default: |