如何在jvm源码中定位到某个Java本地方法对应的本地方法源码？

Question

比如说java.lang.Object#wait()，如何在jvm源码定位它？

Answer 1

从 jdk/src/share/native/java/lang/Object.c 文件里, 你可以找到

static JNINativeMethod methods[] = {
    {"hashCode",    "()I",                    (void *)&JVM_IHashCode},
    {"wait",        "(J)V",                   (void *)&JVM_MonitorWait},
    {"notify",      "()V",                    (void *)&JVM_MonitorNotify},
    {"notifyAll",   "()V",                    (void *)&JVM_MonitorNotifyAll},
    {"clone",       "()Ljava/lang/Object;",   (void *)&JVM_Clone},
};

所以你需要在原生代码里看看JVM_MonitorWait

你可以用grep去检索, 更好的工具是 source insight