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6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes

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Initial checkin of JSDT code

Reviewed-by: acorn, sbohne
This commit is contained in:
Keith McGuigan 2008-04-17 22:18:15 -04:00
parent 849e0dfc44
commit f072bc9d3f
26 changed files with 2935 additions and 26 deletions
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77
hotspot/src/share/vm/prims/jvm.h
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@ -606,6 +606,83 @@ JVM_SupportsCX8(void);
JNIEXPORT jboolean JNICALL
JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
/*
* com.sun.dtrace.jsdt support
*/
#define JVM_TRACING_DTRACE_VERSION 1
/*
* Structure to pass one probe description to JVM.
*
* The VM will overwrite the definition of the referenced method with
* code that will fire the probe.
*/
typedef struct {
jmethodID method;
jstring function;
jstring name;
void* reserved[4]; // for future use
} JVM_DTraceProbe;
/**
* Encapsulates the stability ratings for a DTrace provider field
*/
typedef struct {
jint nameStability;
jint dataStability;
jint dependencyClass;
} JVM_DTraceInterfaceAttributes;
/*
* Structure to pass one provider description to JVM
*/
typedef struct {
jstring name;
JVM_DTraceProbe* probes;
jint probe_count;
JVM_DTraceInterfaceAttributes providerAttributes;
JVM_DTraceInterfaceAttributes moduleAttributes;
JVM_DTraceInterfaceAttributes functionAttributes;
JVM_DTraceInterfaceAttributes nameAttributes;
JVM_DTraceInterfaceAttributes argsAttributes;
void* reserved[4]; // for future use
} JVM_DTraceProvider;
/*
* Get the version number the JVM was built with
*/
JNIEXPORT jint JNICALL
JVM_DTraceGetVersion(JNIEnv* env);
/*
* Register new probe with given signature, return global handle
*
* The version passed in is the version that the library code was
* built with.
*/
JNIEXPORT jlong JNICALL
JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
jint providers_count, JVM_DTraceProvider* providers);
/*
* Check JSDT probe
*/
JNIEXPORT jboolean JNICALL
JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
/*
* Destroy custom DOF
*/
JNIEXPORT void JNICALL
JVM_DTraceDispose(JNIEnv* env, jlong handle);
/*
* Check to see if DTrace is supported by OS
*/
JNIEXPORT jboolean JNICALL
JVM_DTraceIsSupported(JNIEnv* env);
/*************************************************************************
PART 2: Support for the Verifier and Class File Format Checker
************************************************************************/