archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-28 07:14:30 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8246340: Move SystemDictionary GC roots into OopStorage

Browse source 
Use vm_global() OopStorage for system dictionary roots

Reviewed-by: eosterlund, lfoltan
This commit is contained in:
Coleen Phillimore 2020-06-05 09:55:31 -04:00
parent 06e47d05b6
commit 498b0e61ed
31 changed files with 149 additions and 167 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/hotspot/share/classfile/systemDictionaryShared.hpp
View file

@ -122,9 +122,9 @@ private:
// java.security.ProtectionDomain objects associated with each shared class.
//
// See SystemDictionaryShared::init_security_info for more info.
static objArrayOop _shared_protection_domains;
static objArrayOop _shared_jar_urls;
static objArrayOop _shared_jar_manifests;
static OopHandle _shared_protection_domains;
static OopHandle _shared_jar_urls;
static OopHandle _shared_jar_manifests;
static InstanceKlass* load_shared_class_for_builtin_loader(
Symbol* class_name,
@ -180,12 +180,12 @@ private:
ModuleEntry* mod, TRAPS);
static Handle init_security_info(Handle class_loader, InstanceKlass* ik, PackageEntry* pkg_entry, TRAPS);
static void atomic_set_array_index(objArrayOop array, int index, oop o) {
static void atomic_set_array_index(OopHandle array, int index, oop o) {
// Benign race condition: array.obj_at(index) may already be filled in.
// The important thing here is that all threads pick up the same result.
// It doesn't matter which racing thread wins, as long as only one
// result is used by all threads, and all future queries.
array->atomic_compare_exchange_oop(index, o, NULL);
((objArrayOop)array.resolve())->atomic_compare_exchange_oop(index, o, NULL);
}
static oop shared_protection_domain(int index);
@ -235,7 +235,6 @@ public:
static void allocate_shared_data_arrays(int size, TRAPS);
static void oops_do(OopClosure* f);
// Check if sharing is supported for the class loader.
static bool is_sharing_possible(ClassLoaderData* loader_data);