Class CstackTests

test/test/cstack/CstackTests.java:15–61

import test.smoke.Cpu;

public class CstackTests {
    private static final String PROFILE_COMMAND = "-e cpu -i 10ms -d 1 -o collapsed -a ";

    @Test(mainClass = LongInitializer.class)
    public void asyncGetCallTrace(TestProcess p) throws Exception {
        Output out = p.profile(PROFILE_COMMAND + "--cstack no");
        assert !out.contains(";readBytes") : out;
        assert out.contains("LongInitializer.main_\\[j]") : out;

        out = p.profile(PROFILE_COMMAND + "--cstack fp");
        assert out.contains(";readBytes") : out;
        assert out.contains("LongInitializer.main_\\[j]") : out;
    }

    @Test(mainClass = LongInitializer.class, jvm = Jvm.HOTSPOT, os = Os.LINUX)
    public void vmStructs(TestProcess p) throws Exception {
        Output out = p.profile(PROFILE_COMMAND + "--cstack vm");
        assert out.contains(";readBytes");
        assert out.contains("LongInitializer.main_\\[0]");
        assert !out.contains("InstanceKlass::initialize");
        assert !out.contains("call_stub");
        assert !out.contains("JavaMain");

        out = p.profile(PROFILE_COMMAND + "--cstack vmx");
        assert out.contains(";readBytes");
        assert out.contains("LongInitializer.main_\\[0]");
        assert out.contains("InstanceKlass::initialize");
        assert out.contains("call_stub");
        assert out.contains("JavaMain");
    }

    @Test(mainClass = Cpu.class, jvm = Jvm.HOTSPOT, agentArgs = "start,event=cpu,interval=1ms")
    public void saneNativeStack(TestProcess p) throws Exception {
        Thread.sleep(2000);
        Output out = p.profile("stop -o flamegraph").convertFlameToCollapsed();

        assert out.contains("^test/smoke/Cpu.main");
        assert out.contains("CompileBroker::");
        assert out.contains("Java_java_io_");

        // No JVM frames before start_thread
        assert !out.contains("CompileBroker::.*;start_thread");

        // No duplicated native frames
        assert !out.contains("Java_java_io_.*;Java_java_io_");
    }
}