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7018257: jmm_DumpThreads allocates into permgen

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Don't allocate in permgen

Reviewed-by: ysr, sla
This commit is contained in:
Stefan Karlsson 2011-02-11 14:15:16 +01:00
parent 2c35cde750
commit 311bd2a9a9
3 changed files with 15 additions and 5 deletions
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15
hotspot/src/share/vm/memory/oopFactory.cpp
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@ -92,12 +92,21 @@ objArrayOop oopFactory::new_objArray(klassOop klass, int length, TRAPS) {
}
}
objArrayOop oopFactory::new_system_objArray(int length, TRAPS) {
objArrayOop oopFactory::new_system_objArray(int length, bool in_perm_gen, TRAPS) {
int size = objArrayOopDesc::object_size(length);
KlassHandle klass (THREAD, Universe::systemObjArrayKlassObj());
objArrayOop o = (objArrayOop)
Universe::heap()->permanent_array_allocate(klass, size, length, CHECK_NULL);
oop o;
if (in_perm_gen) {
o = Universe::heap()->permanent_array_allocate(klass, size, length, CHECK_NULL);
} else {
o = Universe::heap()->array_allocate(klass, size, length, CHECK_NULL);
}
// initialization not needed, allocated cleared
return (objArrayOop) o;
}
objArrayOop oopFactory::new_system_objArray(int length, TRAPS) {
objArrayOop o = oopFactory::new_system_objArray(length, true, CHECK_NULL);
return o;
}

1
hotspot/src/share/vm/memory/oopFactory.hpp
View File

@ -102,6 +102,7 @@ public:
// System object arrays
static objArrayOop new_system_objArray(int length, TRAPS);
static objArrayOop new_system_objArray(int length, bool in_perm_gen, TRAPS);
// Regular object arrays
static objArrayOop new_objArray(klassOop klass, int length, TRAPS);

4
hotspot/src/share/vm/services/management.cpp
View File

@ -1310,7 +1310,7 @@ JVM_ENTRY(jobjectArray, jmm_DumpThreads(JNIEnv *env, jlongArray thread_ids, jboo
if (locked_monitors) {
// Constructs Object[] and int[] to contain the object monitor and the stack depth
// where the thread locked it
objArrayOop array = oopFactory::new_system_objArray(num_locked_monitors, CHECK_NULL);
objArrayOop array = oopFactory::new_system_objArray(num_locked_monitors, false, CHECK_NULL);
objArrayHandle mh(THREAD, array);
monitors_array = mh;
@ -1352,7 +1352,7 @@ JVM_ENTRY(jobjectArray, jmm_DumpThreads(JNIEnv *env, jlongArray thread_ids, jboo
GrowableArray<instanceOop>* locks = (tcl != NULL ? tcl->owned_locks() : NULL);
int num_locked_synchronizers = (locks != NULL ? locks->length() : 0);
objArrayOop array = oopFactory::new_system_objArray(num_locked_synchronizers, CHECK_NULL);
objArrayOop array = oopFactory::new_system_objArray(num_locked_synchronizers, false, CHECK_NULL);
objArrayHandle sh(THREAD, array);
synchronizers_array = sh;