1 cananian 1.1.2.3 // RealtimeRuntime.java, created Wed Jan 31 16:35:49 2001 by wbeebee
2 wbeebee 1.1.2.1 // Copyright (C) 2001 Wes Beebee <wbeebee@mit.edu>
3 wbeebee 1.1.2.1 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 wbeebee 1.1.2.1 package harpoon.Analysis.Realtime;
5 wbeebee 1.1.2.1
6 wbeebee 1.1.2.1 import harpoon.Analysis.ClassHierarchy;
7 wbeebee 1.1.2.1 import harpoon.Analysis.CallGraph;
8 wbeebee 1.1.2.1
9 wbeebee 1.1.2.1 import harpoon.Backend.Generic.Runtime.ObjectBuilder.Info;
10 wbeebee 1.1.2.1 import harpoon.Backend.Generic.Runtime.ObjectBuilder.ObjectInfo;
11 wbeebee 1.1.2.1 import harpoon.Backend.Maps.DefaultNameMap;
12 wbeebee 1.1.2.1 import harpoon.Backend.Maps.NameMap;
13 wbeebee 1.1.2.1 import harpoon.Backend.PreciseC.Frame;
14 wbeebee 1.1.2.1 import harpoon.Backend.Runtime1.AllocationStrategy;
15 wbeebee 1.1.2.1 import harpoon.Backend.Runtime1.Data;
16 wbeebee 1.1.2.1 import harpoon.Backend.Runtime1.ObjectBuilder;
17 wbeebee 1.1.2.1 import harpoon.Backend.Runtime1.ObjectBuilder.RootOracle;
18 wbeebee 1.1.2.1
19 wbeebee 1.1.2.1 import harpoon.ClassFile.HClass;
20 cananian 1.2.2.1 import harpoon.ClassFile.HData;
21 wbeebee 1.1.2.1 import harpoon.ClassFile.HDataElement;
22 wbeebee 1.1.2.1 import harpoon.ClassFile.HField;
23 wbeebee 1.1.2.1 import harpoon.ClassFile.HMethod;
24 wbeebee 1.1.2.1 import harpoon.ClassFile.Linker;
25 wbeebee 1.1.2.1
26 wbeebee 1.1.2.1 import harpoon.IR.Tree.Stm;
27 wbeebee 1.1.2.1 import harpoon.IR.Tree.TreeFactory;
28 wbeebee 1.1.2.1 import harpoon.IR.Tree.SEGMENT;
29 wbeebee 1.1.2.1
30 wbeebee 1.1.2.1 import harpoon.Temp.Label;
31 wbeebee 1.1.2.1
32 wbeebee 1.1.2.1 import java.util.ArrayList;
33 wbeebee 1.1.2.1 import java.util.List;
34 wbeebee 1.1.2.1
35 wbeebee 1.1.2.1 /**
36 wbeebee 1.1.2.1 * <code>RealtimeRuntime</code> is a trivial extension of
37 wbeebee 1.1.2.2 * <code>harpoon.Backend.Runtime2.Runtime</code> that allows constants
38 wbeebee 1.1.2.5 * to be tagged with an ImmortalMemory and emits extra const char* data
39 wbeebee 1.1.2.5 * for debugging purposes when Realtime.DEBUG_REF is turned on.
40 wbeebee 1.1.2.1 *
41 cananian 1.1.2.3 * @author Wes Beebee <wbeebee@mit.edu>
42 salcianu 1.6 * @version $Id: RealtimeRuntime.java,v 1.6 2002/10/04 19:50:31 salcianu Exp $
43 wbeebee 1.1.2.1 */
44 wbeebee 1.1.2.1
45 cananian 1.2.2.1 public class RealtimeRuntime extends harpoon.Backend.Runtime1.Runtime {
46 wbeebee 1.1.2.1
47 wbeebee 1.1.2.1 /** Create a RealtimeRuntime. */
48 wbeebee 1.1.2.1
49 wbeebee 1.1.2.1 public RealtimeRuntime(Frame frame, AllocationStrategy as,
50 cananian 1.1.2.9 final HMethod main, final boolean prependUnderscore)
51 cananian 1.1.2.9 {
52 cananian 1.1.2.9 super(frame, as, main, prependUnderscore,
53 wbeebee 1.1.2.1 new RootOracle() {
54 wbeebee 1.1.2.1 public Object get(final HField hf, Info addlinfo) {
55 wbeebee 1.1.2.1 final HClass memoryArea = main
56 wbeebee 1.1.2.1 .getDeclaringClass().getLinker()
57 wbeebee 1.1.2.1 .forName("javax.realtime.ImmortalMemory");
58 wbeebee 1.1.2.1 final HClass hfClass = hf.getDeclaringClass();
59 wbeebee 1.1.2.1 final NameMap nm =
60 wbeebee 1.1.2.1 new DefaultNameMap(prependUnderscore);
61 wbeebee 1.1.2.1 if (hfClass.getName().equals("java.lang.Object") &&
62 wbeebee 1.1.2.1 hf.getName().equals("memoryArea")) {
63 wbeebee 1.1.2.1 return new ObjectInfo() {
64 wbeebee 1.1.2.1 public HClass type() {
65 wbeebee 1.1.2.1 return memoryArea;
66 wbeebee 1.1.2.1 }
67 wbeebee 1.1.2.1 public Label label() {
68 wbeebee 1.1.2.1 return nm.label(hfClass,
69 wbeebee 1.1.2.1 "constantMemoryArea");
70 wbeebee 1.1.2.1 }
71 wbeebee 1.1.2.1 public Object get(HField hff) {
72 wbeebee 1.1.2.1 return NOT_A_VALUE; // doesn't traverse
73 wbeebee 1.1.2.1 }
74 wbeebee 1.1.2.1 };
75 wbeebee 1.1.2.1 } else {
76 wbeebee 1.1.2.1 return NOT_A_VALUE;
77 wbeebee 1.1.2.1 }
78 wbeebee 1.1.2.1 }
79 wbeebee 1.1.2.1 });
80 wbeebee 1.1.2.1 }
81 wbeebee 1.1.2.1
82 wbeebee 1.1.2.1 /** Tag all classes with <code>javax.realtime.ImmortalMemory</code>
83 wbeebee 1.1.2.1 * <code>java.lang.Object.memoryArea</code> that has a field
84 wbeebee 1.1.2.1 * <code>javax.realtime.ImmortalMemory.constant = true;</code>
85 wbeebee 1.1.2.5 *
86 wbeebee 1.1.2.5 * Also emit data to deal with const char*'s that can be created
87 wbeebee 1.1.2.5 * when <code>Realtime.DEBUG_REF</code>.
88 wbeebee 1.1.2.1 */
89 wbeebee 1.1.2.1
90 cananian 1.2.2.1 public List<HData> classData(final HClass hc) {
91 wbeebee 1.1.2.1 class DataConstMemoryArea extends Data {
92 wbeebee 1.1.2.1 DataConstMemoryArea() {
93 wbeebee 1.1.2.1 super("memArea-data", hc, RealtimeRuntime.this.frame);
94 wbeebee 1.1.2.1
95 wbeebee 1.1.2.1 ObjectInfo constMemAreaObject = new ObjectInfo() {
96 wbeebee 1.1.2.1 public HClass type() { return memoryArea; }
97 wbeebee 1.1.2.1 public Label label() { return label; }
98 wbeebee 1.1.2.1 public Object get(HField hf) {
99 wbeebee 1.1.2.1 if (hf.getName().equals("constant")) {
100 wbeebee 1.1.2.1 return new Boolean(true);
101 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Boolean) {
102 wbeebee 1.1.2.1 return new Boolean(false);
103 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Byte) {
104 wbeebee 1.1.2.1 return new Byte((byte)0);
105 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Short) {
106 wbeebee 1.1.2.1 return new Short((short)0);
107 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Int) {
108 wbeebee 1.1.2.1 return new Integer(0);
109 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Long) {
110 wbeebee 1.1.2.1 return new Long(0);
111 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Float) {
112 wbeebee 1.1.2.1 return new Float(0.0);
113 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Double) {
114 wbeebee 1.1.2.1 return new Double(0.0);
115 wbeebee 1.1.2.1 } else if (hf.getType() == HClass.Char) {
116 wbeebee 1.1.2.1 return new Character(' ');
117 wbeebee 1.1.2.1 } else {
118 wbeebee 1.1.2.1 return null;
119 wbeebee 1.1.2.1 }
120 wbeebee 1.1.2.1 }
121 wbeebee 1.1.2.1
122 wbeebee 1.1.2.11 final HClass memoryArea =
123 wbeebee 1.1.2.11 RealtimeRuntime.this.frame.getLinker()
124 wbeebee 1.1.2.1 .forName("javax.realtime.ImmortalMemory");
125 wbeebee 1.1.2.1 final Label label =
126 cananian 1.1.2.9 getNameMap().label(hc, "constantMemoryArea");
127 wbeebee 1.1.2.1 };
128 wbeebee 1.1.2.1
129 wbeebee 1.1.2.1 List stmlist = new ArrayList();
130 wbeebee 1.1.2.1 stmlist.add(new SEGMENT(tf, null, SEGMENT.STATIC_OBJECTS));
131 wbeebee 1.1.2.1 stmlist.add(ob.buildObject(tf, constMemAreaObject, true));
132 wbeebee 1.1.2.1 this.root = (HDataElement) Stm.toStm(stmlist);
133 wbeebee 1.1.2.1 }
134 wbeebee 1.1.2.1 }
135 wbeebee 1.1.2.1
136 wbeebee 1.1.2.6 class DataConstCharPointer extends Data {
137 wbeebee 1.1.2.6 DataConstCharPointer() {
138 wbeebee 1.1.2.5 super("constChar-data", hc, RealtimeRuntime.this.frame);
139 wbeebee 1.1.2.5
140 wbeebee 1.1.2.5 this.root = (HDataElement)
141 wbeebee 1.1.2.5 RealtimeAllocationStrategy.emitStrings(tf, null);
142 wbeebee 1.1.2.5 }
143 wbeebee 1.1.2.5 }
144 wbeebee 1.1.2.5
145 cananian 1.2.2.1 List<HData> r = super.classData(hc);
146 cananian 1.2.2.1 ArrayList<HData> datalst = new ArrayList<HData>(r.size() + (Realtime.DEBUG_REF?2:1));
147 wbeebee 1.1.2.6 datalst.addAll(r);
148 wbeebee 1.1.2.6 datalst.add(new DataConstMemoryArea());
149 wbeebee 1.1.2.5 if (Realtime.DEBUG_REF) {
150 wbeebee 1.1.2.6 datalst.add(new DataConstCharPointer());
151 wbeebee 1.1.2.6 }
152 wbeebee 1.1.2.6 return datalst;
153 wbeebee 1.1.2.6 }
154 wbeebee 1.1.2.6
155 wbeebee 1.1.2.6 /** Initialize the tree builder with masking turned on if needed. */
156 wbeebee 1.1.2.6
157 cananian 1.2.2.1 protected harpoon.Backend.Runtime1.TreeBuilder initTreeBuilder() {
158 wbeebee 1.1.2.6 if (System.getProperty("harpoon.runtime", "1").equals("2")) {
159 wbeebee 1.1.2.10 return new harpoon.Backend.Runtime2
160 cananian 1.1.2.9 .TreeBuilder(this, frame.getLinker(), as,
161 cananian 1.1.2.9 frame.pointersAreLong(),
162 wbeebee 1.1.2.12 (Realtime.NOHEAP_CHECKS||Realtime.NOHEAP_MASK)?4:0) { };
163 wbeebee 1.1.2.6 } else {
164 wbeebee 1.1.2.10 return new harpoon.Backend.Runtime1
165 cananian 1.1.2.9 .TreeBuilder(this, frame.getLinker(), as,
166 cananian 1.1.2.9 frame.pointersAreLong(),
167 wbeebee 1.1.2.12 (Realtime.NOHEAP_CHECKS||Realtime.NOHEAP_MASK)?4:0) { };
168 wbeebee 1.1.2.6
169 wbeebee 1.4 }
170 wbeebee 1.4 }
171 wbeebee 1.4
172 wbeebee 1.4 public String resourcePath(String basename) {
173 salcianu 1.6 if (basename.equals("init-safe.properties") &&
174 wbeebee 1.4 Realtime.RTJ_PERF) {
175 wbeebee 1.4 return "harpoon/Analysis/Realtime/"+basename;
176 wbeebee 1.4 } else {
177 wbeebee 1.5 return super.resourcePath(basename);
178 wbeebee 1.1.2.5 }
179 wbeebee 1.1.2.1 }
180 cananian 1.2 }