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8342963: TestLargeStub::testUpcall doesn't test upcalls stubs

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Reviewed-by: mcimadamore
This commit is contained in:
Jorn Vernee 2024-11-14 16:55:25 +00:00
parent e12f514120
commit 002b985a46
1 changed files with 15 additions and 3 deletions
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18
test/jdk/java/foreign/largestub/TestLargeStub.java
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@ -33,10 +33,14 @@ import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import java.lang.foreign.Arena;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.Linker;
import java.lang.foreign.MemoryLayout;
import java.lang.foreign.MemorySegment;
import java.lang.foreign.ValueLayout;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.stream.Stream;
import static org.junit.jupiter.params.provider.Arguments.arguments;
@ -76,9 +80,17 @@ public class TestLargeStub extends NativeTestHelper {
@MethodSource("layouts")
public void testUpcall(ValueLayout layout, int numSlots) {
// Link a handle with a large number of arguments, to try and overflow the code buffer
Linker.nativeLinker().downcallHandle(
FunctionDescriptor.of(STRUCT_LL,
Stream.generate(() -> layout).limit(UPCALL_AVAILABLE_SLOTS / numSlots).toArray(MemoryLayout[]::new)));
try (Arena arena = Arena.ofConfined()) {
Linker.nativeLinker().upcallStub(
MethodHandles.empty(MethodType.methodType(MemorySegment.class,
Stream.generate(() -> layout).limit(UPCALL_AVAILABLE_SLOTS / numSlots)
.map(ValueLayout::carrier)
.toArray(Class<?>[]::new))),
FunctionDescriptor.of(STRUCT_LL,
Stream.generate(() -> layout).limit(UPCALL_AVAILABLE_SLOTS / numSlots)
.toArray(MemoryLayout[]::new)),
arena);
}
}
private static Stream<Arguments> layouts() {