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Wasm backend: fix

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This commit is contained in:
Alexey Andreev 2019-04-26 17:10:28 +03:00
parent 20866637e7
commit da68fa0083
10 changed files with 191 additions and 14 deletions
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2
core/src/main/java/org/teavm/backend/c/CTarget.java
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@ -49,6 +49,7 @@ import org.teavm.backend.c.generators.ArrayGenerator;
import org.teavm.backend.c.generators.Generator;
import org.teavm.backend.c.intrinsic.AddressIntrinsic;
import org.teavm.backend.c.intrinsic.AllocatorIntrinsic;
import org.teavm.backend.c.intrinsic.ConsoleIntrinsic;
import org.teavm.backend.c.intrinsic.ExceptionHandlingIntrinsic;
import org.teavm.backend.c.intrinsic.FunctionIntrinsic;
import org.teavm.backend.c.intrinsic.GCIntrinsic;
@ -293,6 +294,7 @@ public class CTarget implements TeaVMTarget, TeaVMCHost {
intrinsics.add(new LongIntrinsic());
intrinsics.add(new IntegerIntrinsic());
intrinsics.add(new StringsIntrinsic());
intrinsics.add(new ConsoleIntrinsic());
List<Generator> generators = new ArrayList<>();
generators.add(new ArrayGenerator());

63
core/src/main/java/org/teavm/backend/c/intrinsic/ConsoleIntrinsic.java Normal file
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@ -0,0 +1,63 @@
/*
* Copyright 2019 Alexey Andreev.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teavm.backend.c.intrinsic;
import org.teavm.ast.ConstantExpr;
import org.teavm.ast.Expr;
import org.teavm.ast.InvocationExpr;
import org.teavm.backend.c.generate.StringPoolGenerator;
import org.teavm.model.MethodReference;
import org.teavm.runtime.Console;
public class ConsoleIntrinsic implements Intrinsic {
@Override
public boolean canHandle(MethodReference method) {
if (!method.getClassName().equals(Console.class.getName())) {
return false;
}
return method.getName().equals("printString");
}
@Override
public void apply(IntrinsicContext context, InvocationExpr invocation) {
switch (invocation.getMethod().getName()) {
case "printString": {
context.writer().print("fprintf(stderr, \"%s\", ");
Expr arg = invocation.getArguments().get(0);
String literal = extractStringConstant(arg);
if (literal != null) {
StringPoolGenerator.generateSimpleStringLiteral(context.writer(), literal);
} else {
context.writer().print("teavm_stringToC(");
context.emit(arg);
context.writer().print(")");
}
context.writer().print(")");
break;
}
}
}
private String extractStringConstant(Expr expr) {
if (!(expr instanceof ConstantExpr)) {
return null;
}
Object value = ((ConstantExpr) expr).getValue();
return value instanceof String ? (String) value : null;
}
}

9
core/src/main/java/org/teavm/backend/wasm/WasmRuntime.java
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@ -83,6 +83,15 @@ public final class WasmRuntime {
@Import(name = "print", module = "spectest")
public static native void print(int a);
@Import(name = "logString", module = "teavm")
public static native void printString(String s);
@Import(name = "logInt", module = "teavm")
public static native void printInt(int i);
@Import(name = "logOutOfMemory", module = "teavm")
public static native void printOutOfMemory();
public static void fillZero(Address address, int count) {
int start = address.toInt();

8
core/src/main/java/org/teavm/backend/wasm/WasmTarget.java
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@ -44,6 +44,7 @@ import org.teavm.backend.wasm.generators.WasmMethodGeneratorContext;
import org.teavm.backend.wasm.intrinsics.AddressIntrinsic;
import org.teavm.backend.wasm.intrinsics.AllocatorIntrinsic;
import org.teavm.backend.wasm.intrinsics.ClassIntrinsic;
import org.teavm.backend.wasm.intrinsics.ConsoleIntrinsic;
import org.teavm.backend.wasm.intrinsics.DoubleIntrinsic;
import org.teavm.backend.wasm.intrinsics.ExceptionHandlingIntrinsic;
import org.teavm.backend.wasm.intrinsics.FloatIntrinsic;
@ -269,6 +270,12 @@ public class WasmTarget implements TeaVMTarget, TeaVMWasmHost {
String[].class)).use();
dependencyAnalyzer.linkMethod(new MethodReference(WasmRuntime.class, "lookupResource", Address.class,
String.class, Address.class)).use();
dependencyAnalyzer.linkMethod(new MethodReference(WasmRuntime.class, "printString",
String.class, void.class)).use();
dependencyAnalyzer.linkMethod(new MethodReference(WasmRuntime.class, "printInt",
int.class, void.class)).use();
dependencyAnalyzer.linkMethod(new MethodReference(WasmRuntime.class, "printOutOfMemory",
void.class)).use();
dependencyAnalyzer.linkMethod(new MethodReference(Allocator.class, "allocate",
RuntimeClass.class, Address.class)).use();
@ -344,6 +351,7 @@ public class WasmTarget implements TeaVMTarget, TeaVMWasmHost {
context.addIntrinsic(new LongIntrinsic());
context.addIntrinsic(new IntegerIntrinsic());
context.addIntrinsic(new ObjectIntrinsic());
context.addIntrinsic(new ConsoleIntrinsic());
context.addGenerator(new ArrayGenerator());
IntrinsicFactoryContext intrinsicFactoryContext = new IntrinsicFactoryContext();

66
core/src/main/java/org/teavm/backend/wasm/intrinsics/ConsoleIntrinsic.java Normal file
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@ -0,0 +1,66 @@
/*
* Copyright 2019 Alexey Andreev.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teavm.backend.wasm.intrinsics;
import org.teavm.ast.InvocationExpr;
import org.teavm.backend.wasm.WasmRuntime;
import org.teavm.backend.wasm.model.expression.WasmCall;
import org.teavm.backend.wasm.model.expression.WasmExpression;
import org.teavm.backend.wasm.model.expression.WasmUnreachable;
import org.teavm.model.MethodReference;
import org.teavm.runtime.Console;
public class ConsoleIntrinsic implements WasmIntrinsic {
private static final MethodReference PRINT_STRING = new MethodReference(WasmRuntime.class,
"printString", String.class, void.class);
private static final MethodReference PRINT_INT = new MethodReference(WasmRuntime.class,
"printInt", int.class, void.class);
@Override
public boolean isApplicable(MethodReference methodReference) {
if (!methodReference.getClassName().equals(Console.class.getName())) {
return false;
}
switch (methodReference.getName()) {
case "printString":
case "printInt":
return true;
default:
return false;
}
}
@Override
public WasmExpression apply(InvocationExpr invocation, WasmIntrinsicManager manager) {
switch (invocation.getMethod().getName()) {
case "printString": {
String name = manager.getNames().forMethod(PRINT_STRING);
WasmCall call = new WasmCall(name, true);
call.getArguments().add(manager.generate(invocation.getArguments().get(0)));
return call;
}
case "printInt": {
String name = manager.getNames().forMethod(PRINT_INT);
WasmCall call = new WasmCall(name, true);
call.getArguments().add(manager.generate(invocation.getArguments().get(0)));
return call;
}
default:
return new WasmUnreachable();
}
}
}

14
core/src/main/java/org/teavm/backend/wasm/intrinsics/GCIntrinsic.java
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@ -18,13 +18,19 @@ package org.teavm.backend.wasm.intrinsics;
import java.util.ArrayList;
import java.util.List;
import org.teavm.ast.InvocationExpr;
import org.teavm.backend.wasm.WasmRuntime;
import org.teavm.backend.wasm.model.expression.WasmBlock;
import org.teavm.backend.wasm.model.expression.WasmCall;
import org.teavm.backend.wasm.model.expression.WasmExpression;
import org.teavm.backend.wasm.model.expression.WasmInt32Constant;
import org.teavm.backend.wasm.model.expression.WasmInt64Constant;
import org.teavm.backend.wasm.model.expression.WasmUnreachable;
import org.teavm.model.MethodReference;
import org.teavm.runtime.GC;
public class GCIntrinsic implements WasmIntrinsic {
private static final MethodReference PRINT_OUT_OF_MEMORY = new MethodReference(
WasmRuntime.class, "printOutOfMemory", void.class);
private List<WasmInt32Constant> heapAddressExpressions = new ArrayList<>();
private List<WasmInt64Constant> availableBytesExpressions = new ArrayList<>();
private List<WasmInt32Constant> gcStorageAddressExpressions = new ArrayList<>();
@ -89,6 +95,7 @@ public class GCIntrinsic implements WasmIntrinsic {
case "regionsAddress":
case "regionMaxCount":
case "regionSize":
case "outOfMemory":
return true;
default:
return false;
@ -122,6 +129,13 @@ public class GCIntrinsic implements WasmIntrinsic {
availableBytesExpressions.add(constant);
return constant;
}
case "outOfMemory": {
WasmBlock block = new WasmBlock(false);
WasmCall call = new WasmCall(manager.getNames().forMethod(PRINT_OUT_OF_MEMORY), true);
block.getBody().add(call);
block.getBody().add(new WasmUnreachable());
return block;
}
default:
throw new IllegalArgumentException(invocation.getMethod().toString());
}

3
core/src/main/java/org/teavm/backend/wasm/render/WasmBinaryRenderer.java
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@ -337,6 +337,9 @@ public class WasmBinaryRenderer {
functionsSubsection.writeLEB(functions.size());
for (WasmFunction function : functions) {
if (function.getImportName() != null) {
continue;
}
functionsSubsection.writeLEB(functionIndexes.get(function.getName()));
functionsSubsection.writeAsciiString(function.getName());
}

4
core/src/main/java/org/teavm/runtime/Console.java
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@ -15,7 +15,6 @@
*/
package org.teavm.runtime;
import org.teavm.interop.Address;
import org.teavm.interop.Import;
import org.teavm.interop.StaticInit;
import org.teavm.interop.Unmanaged;
@ -26,8 +25,7 @@ public final class Console {
private Console() {
}
@Import(name = "teavm_printString")
public static native void printString(Address ptr);
public static native void printString(String s);
@Import(name = "teavm_printInt")
public static native void printInt(int n);

19
core/src/main/java/org/teavm/runtime/ExceptionHandling.java
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@ -18,7 +18,6 @@ package org.teavm.runtime;
import org.teavm.interop.Address;
import org.teavm.interop.Export;
import org.teavm.interop.StaticInit;
import org.teavm.interop.Strings;
import org.teavm.interop.Structure;
import org.teavm.interop.Unmanaged;
@ -36,21 +35,21 @@ public final class ExceptionHandling {
CallSite callSite = findCallSiteById(callSiteId);
CallSiteLocation location = callSite.location;
Console.printString(Strings.toC(" at "));
Console.printString(" at ");
if (location.className == null || location.methodName == null) {
Console.printString(Strings.toC("(Unknown method)"));
Console.printString("(Unknown method)");
} else {
Console.printString(Strings.toC(location.className));
Console.printString(Strings.toC("."));
Console.printString(Strings.toC(location.methodName));
Console.printString(location.className);
Console.printString(".");
Console.printString(location.methodName);
}
Console.printString(Strings.toC("("));
Console.printString("(");
if (location.fileName != null && location.lineNumber >= 0) {
Console.printString(Strings.toC(location.fileName));
Console.printString(Strings.toC(":"));
Console.printString(location.fileName);
Console.printString(":");
Console.printInt(location.lineNumber);
}
Console.printString(Strings.toC(")\n"));
Console.printString(")\n");
stackFrame = ShadowStack.getNextStackFrame(stackFrame);
}
}

17
core/src/main/resources/org/teavm/backend/wasm/wasm-runtime.js
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@ -37,6 +37,17 @@ TeaVM.wasm = function() {
function getNativeOffset(instant) {
return new Date(instant).getTimezoneOffset();
}
function logString(string) {
var memory = new DataView(logString.memory.buffer);
var arrayPtr = memory.getUint32(string + 8, true);
var length = memory.getUint32(arrayPtr + 8, true);
for (var i = 0; i < length; ++i) {
putwchar(memory.getUint16(i * 2 + arrayPtr + 12, true));
}
}
function logInt(i) {
lineBuffer += i.toString();
}
function importDefaults(obj) {
obj.teavm = {
@ -48,7 +59,10 @@ TeaVM.wasm = function() {
putwchar: putwchar,
towlower: towlower,
towupper: towupper,
getNativeOffset: getNativeOffset
getNativeOffset: getNativeOffset,
logString: logString,
logInt: logInt,
logOutOfMemory: function() { console.log("Out of memory") }
};
obj.teavmMath = Math;
@ -79,6 +93,7 @@ TeaVM.wasm = function() {
}
WebAssembly.instantiate(response, importObj).then(function(resultObject) {
importObj.teavm.logString.memory = resultObject.instance.exports.memory;
resultObject.instance.exports.main();
callback(resultObject);
}).catch(function(error) {