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8005849: JEP 167: Event-Based JVM Tracing

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Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Bengt Rutisson <bengt.rutisson@oracle.com>
Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com>
Co-authored-by: Erik Gahlin <erik.gahlin@oracle.com>
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Co-authored-by: Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>
Co-authored-by: Keith McGuigan <keith.mcguigan@oracle.com>
Co-authored-by: Mattias Tobiasson <mattias.tobiasson@oracle.com>
Co-authored-by: Markus Gronlund <markus.gronlund@oracle.com>
Co-authored-by: Mikael Auno <mikael.auno@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Nils Loodin <nils.loodin@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
Reviewed-by: acorn, coleenp, sla
This commit is contained in:
Staffan Larsen 2013-06-10 11:30:51 +02:00
parent 6b2c468c35
commit 718f3252f6
195 changed files with 7628 additions and 1484 deletions
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16
hotspot/src/share/vm/classfile/classLoaderData.hpp
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@ -32,6 +32,10 @@
#include "runtime/mutex.hpp"
#include "utilities/growableArray.hpp"
#if INCLUDE_TRACE
# include "trace/traceTime.hpp"
#endif
//
// A class loader represents a linkset. Conceptually, a linkset identifies
// the complete transitive closure of resolved links that a dynamic linker can
@ -49,6 +53,7 @@ class ClassLoaderData;
class JNIMethodBlock;
class JNIHandleBlock;
class Metadebug;
// GC root for walking class loader data created
class ClassLoaderDataGraph : public AllStatic {
@ -63,6 +68,7 @@ class ClassLoaderDataGraph : public AllStatic {
static ClassLoaderData* _saved_head;
static ClassLoaderData* add(Handle class_loader, bool anonymous, TRAPS);
static void post_class_unload_events(void);
public:
static ClassLoaderData* find_or_create(Handle class_loader, TRAPS);
static void purge();
@ -71,6 +77,8 @@ class ClassLoaderDataGraph : public AllStatic {
static void always_strong_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim);
static void keep_alive_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim);
static void classes_do(KlassClosure* klass_closure);
static void classes_do(void f(Klass* const));
static void classes_unloading_do(void f(Klass* const));
static bool do_unloading(BoolObjectClosure* is_alive);
// CMS support.
@ -86,6 +94,12 @@ class ClassLoaderDataGraph : public AllStatic {
static bool contains(address x);
static bool contains_loader_data(ClassLoaderData* loader_data);
#endif
#if INCLUDE_TRACE
private:
static TracingTime _class_unload_time;
static void class_unload_event(Klass* const k);
#endif
};
// ClassLoaderData class
@ -171,7 +185,7 @@ class ClassLoaderData : public CHeapObj<mtClass> {
void unload();
bool keep_alive() const { return _keep_alive; }
bool is_alive(BoolObjectClosure* is_alive_closure) const;
void classes_do(void f(Klass*));
void classes_do(void f(InstanceKlass*));
// Deallocate free list during class unloading.