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8170672: Event-based tracing to support classloader instances

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Reviewed-by: hseigel, egahlin
This commit is contained in:
Markus Grönlund 2016-12-06 22:49:17 +01:00
parent 8bf0437430
commit 6a685f1d63
13 changed files with 95 additions and 59 deletions
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8
hotspot/src/share/vm/classfile/classLoaderData.hpp
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@ -30,6 +30,7 @@
#include "memory/metaspace.hpp"
#include "memory/metaspaceCounters.hpp"
#include "runtime/mutex.hpp"
#include "trace/traceMacros.hpp"
#include "utilities/growableArray.hpp"
#include "utilities/macros.hpp"
#if INCLUDE_TRACE
@ -78,7 +79,7 @@ class ClassLoaderDataGraph : public AllStatic {
static bool _metaspace_oom;
static ClassLoaderData* add(Handle class_loader, bool anonymous, TRAPS);
static void post_class_unload_events(void);
static void post_class_unload_events();
public:
static ClassLoaderData* find_or_create(Handle class_loader, TRAPS);
static void purge();
@ -89,6 +90,7 @@ class ClassLoaderDataGraph : public AllStatic {
static void always_strong_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim);
// cld do
static void cld_do(CLDClosure* cl);
static void cld_unloading_do(CLDClosure* cl);
static void roots_cld_do(CLDClosure* strong, CLDClosure* weak);
static void keep_alive_cld_do(CLDClosure* cl);
static void always_strong_cld_do(CLDClosure* cl);
@ -210,6 +212,8 @@ class ClassLoaderData : public CHeapObj<mtClass> {
static Metaspace* _ro_metaspace;
static Metaspace* _rw_metaspace;
TRACE_DEFINE_TRACE_ID_FIELD;
void set_next(ClassLoaderData* next) { _next = next; }
ClassLoaderData* next() const { return _next; }
@ -342,6 +346,8 @@ class ClassLoaderData : public CHeapObj<mtClass> {
assert(_shared_class_loader_id <0, "cannot be assigned more than once");
_shared_class_loader_id = id;
}
TRACE_DEFINE_TRACE_ID_METHODS;
};
// An iterator that distributes Klasses to parallel worker threads.