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wasm gc: fix remaining issues that prevent running trivial example

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This commit is contained in:
Alexey Andreev 2024-08-01 20:25:18 +02:00
parent 54dc7fe5f8
commit 9b5e1e7661
5 changed files with 29 additions and 5 deletions
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2
classlib/src/main/java/org/teavm/classlib/impl/console/JSStdoutPrintStream.java
View File

@ -24,7 +24,7 @@ public class JSStdoutPrintStream extends JsConsolePrintStream {
public void print(String s) {
if (PlatformDetector.isWebAssemblyGC()) {
for (int i = 0; i < s.length(); ++i) {
WasmGCSupport.putCharStderr(s.charAt(i));
WasmGCSupport.putCharStdout(s.charAt(i));
}
} else {
writeJs(s);

3
core/src/main/java/org/teavm/backend/wasm/generate/gc/WasmGCDeclarationsGenerator.java
View File

@ -125,10 +125,11 @@ public class WasmGCDeclarationsGenerator {
}
public void contributeToInitializer(WasmFunction function) {
classGenerator.contributeToInitializer(function);
var contributors = List.of(classGenerator, classGenerator.strings);
for (var contributor : contributors) {
contributor.contributeToInitializerDefinitions(function);
}
for (var contributor : contributors) {
contributor.contributeToInitializer(function);
}
}

2
core/src/main/java/org/teavm/backend/wasm/generate/gc/strings/WasmGCStringPool.java
View File

@ -81,7 +81,7 @@ public class WasmGCStringPool implements WasmGCStringProvider, WasmGCInitializer
if (nextCharArrayFunction == null) {
initNextCharArrayFunction();
}
binaryWriter.writeInt32(string.length());
binaryWriter.writeLEB(string.length());
binaryWriter.writeBytes(string.getBytes(StandardCharsets.UTF_8));
var globalName = "teavm_java_string_" + stringMap.size();
var globalType = standardClasses.stringClass().getType();

10
core/src/main/java/org/teavm/backend/wasm/generators/gc/WasmGCStringPoolGenerator.java
View File

@ -20,11 +20,15 @@ import org.teavm.backend.wasm.model.WasmGlobal;
import org.teavm.backend.wasm.model.WasmLocal;
import org.teavm.backend.wasm.model.WasmType;
import org.teavm.backend.wasm.model.expression.WasmGetGlobal;
import org.teavm.backend.wasm.model.expression.WasmGetLocal;
import org.teavm.backend.wasm.model.expression.WasmInt32Constant;
import org.teavm.backend.wasm.model.expression.WasmInt32Subtype;
import org.teavm.backend.wasm.model.expression.WasmIntBinary;
import org.teavm.backend.wasm.model.expression.WasmIntBinaryOperation;
import org.teavm.backend.wasm.model.expression.WasmIntType;
import org.teavm.backend.wasm.model.expression.WasmLoadInt32;
import org.teavm.backend.wasm.model.expression.WasmReturn;
import org.teavm.backend.wasm.model.expression.WasmSetGlobal;
import org.teavm.backend.wasm.model.expression.WasmSetLocal;
import org.teavm.model.MethodReference;
@ -38,9 +42,11 @@ public class WasmGCStringPoolGenerator implements WasmGCCustomGenerator {
var resultLocal = new WasmLocal(WasmType.INT32);
function.add(resultLocal);
function.getBody().add(new WasmSetLocal(resultLocal, new WasmLoadInt32(1, new WasmGetGlobal(pointer),
WasmInt32Subtype.UINT8)));
var increment = new WasmIntBinary(WasmIntType.INT32, WasmIntBinaryOperation.ADD,
new WasmGetGlobal(pointer), new WasmInt32Constant(1));
function.getBody().add(new WasmSetLocal(resultLocal, increment));
function.getBody().add(new WasmReturn(new WasmGetGlobal(pointer)));
function.getBody().add(new WasmSetGlobal(pointer, increment));
function.getBody().add(new WasmReturn(new WasmGetLocal(resultLocal)));
}
}

17
core/src/main/java/org/teavm/backend/wasm/render/WasmBinaryRenderer.java
View File

@ -477,6 +477,23 @@ public class WasmBinaryRenderer {
section.writeBytes(payload);
}
var globals = module.globals.stream()
.filter(g -> g.getName() != null)
.collect(Collectors.toList());
if (!globals.isEmpty()) {
var globalsSubsection = new WasmBinaryWriter();
globalsSubsection.writeLEB(globals.size());
for (var global : globals) {
globalsSubsection.writeLEB(module.globals.indexOf(global));
globalsSubsection.writeAsciiString(global.getName());
}
payload = globalsSubsection.getData();
section.writeLEB(7);
section.writeLEB(payload.length);
section.writeBytes(payload);
}
writeSection(SECTION_UNKNOWN, "name", section.getData());
}