274 return _method != NULL &&
275 _bci >= 0;
276 }
277
278 address JvmtiBreakpoint::getBcp() {
279 return _method->bcp_from(_bci);
280 }
281
282 void JvmtiBreakpoint::each_method_version_do(method_action meth_act) {
283 ((Method*)_method->*meth_act)(_bci);
284
285 // add/remove breakpoint to/from versions of the method that
286 // are EMCP. Directly or transitively obsolete methods are
287 // not saved in the PreviousVersionNodes.
288 Thread *thread = Thread::current();
289 instanceKlassHandle ikh = instanceKlassHandle(thread, _method->method_holder());
290 Symbol* m_name = _method->name();
291 Symbol* m_signature = _method->signature();
292
293 // search previous versions if they exist
294 PreviousVersionWalker pvw(thread, (InstanceKlass *)ikh());
295 for (PreviousVersionNode * pv_node = pvw.next_previous_version();
296 pv_node != NULL; pv_node = pvw.next_previous_version()) {
297 GrowableArray<Method*>* methods = pv_node->prev_EMCP_methods();
298
299 if (methods == NULL) {
300 // We have run into a PreviousVersion generation where
301 // all methods were made obsolete during that generation's
302 // RedefineClasses() operation. At the time of that
303 // operation, all EMCP methods were flushed so we don't
304 // have to go back any further.
305 //
306 // A NULL methods array is different than an empty methods
307 // array. We cannot infer any optimizations about older
308 // generations from an empty methods array for the current
309 // generation.
310 break;
311 }
312
313 for (int i = methods->length() - 1; i >= 0; i--) {
314 Method* method = methods->at(i);
315 // obsolete methods that are running are not deleted from
316 // previous version array, but they are skipped here.
317 if (!method->is_obsolete() &&
318 method->name() == m_name &&
319 method->signature() == m_signature) {
320 RC_TRACE(0x00000800, ("%sing breakpoint in %s(%s)",
321 meth_act == &Method::set_breakpoint ? "sett" : "clear",
322 method->name()->as_C_string(),
323 method->signature()->as_C_string()));
324
325 (method->*meth_act)(_bci);
326 break;
327 }
328 }
329 }
330 }
331
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274 return _method != NULL &&
275 _bci >= 0;
276 }
277
278 address JvmtiBreakpoint::getBcp() {
279 return _method->bcp_from(_bci);
280 }
281
282 void JvmtiBreakpoint::each_method_version_do(method_action meth_act) {
283 ((Method*)_method->*meth_act)(_bci);
284
285 // add/remove breakpoint to/from versions of the method that
286 // are EMCP. Directly or transitively obsolete methods are
287 // not saved in the PreviousVersionNodes.
288 Thread *thread = Thread::current();
289 instanceKlassHandle ikh = instanceKlassHandle(thread, _method->method_holder());
290 Symbol* m_name = _method->name();
291 Symbol* m_signature = _method->signature();
292
293 // search previous versions if they exist
294 for (InstanceKlass* pv_node = ikh->previous_versions();
295 pv_node != NULL;
296 pv_node = pv_node->previous_versions()) {
297 Array<Method*>* methods = pv_node->methods();
298
299 for (int i = methods->length() - 1; i >= 0; i--) {
300 Method* method = methods->at(i);
301 // obsolete methods that are running are not deleted from
302 // previous version array, but they are skipped here.
303 if (!method->is_obsolete() &&
304 method->name() == m_name &&
305 method->signature() == m_signature) {
306 RC_TRACE(0x00000800, ("%sing breakpoint in %s(%s)",
307 meth_act == &Method::set_breakpoint ? "sett" : "clear",
308 method->name()->as_C_string(),
309 method->signature()->as_C_string()));
310
311 (method->*meth_act)(_bci);
312 break;
313 }
314 }
315 }
316 }
317
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