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6990754: Use native memory and reference counting to implement SymbolTable

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Move symbols from permgen into C heap and reference count them

Reviewed-by: never, acorn, jmasa, stefank
This commit is contained in:
Coleen Phillimore 2011-01-27 16:11:27 -08:00
parent 950858350d
commit 7b4f8073f0
223 changed files with 3783 additions and 3641 deletions
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14
hotspot/src/share/vm/prims/jvmtiImpl.cpp
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@ -285,8 +285,8 @@ void JvmtiBreakpoint::each_method_version_do(method_action meth_act) {
// not saved in the PreviousVersionInfo.
Thread *thread = Thread::current();
instanceKlassHandle ikh = instanceKlassHandle(thread, _method->method_holder());
symbolOop m_name = _method->name();
symbolOop m_signature = _method->signature();
Symbol* m_name = _method->name();
Symbol* m_signature = _method->signature();
{
ResourceMark rm(thread);
@ -628,22 +628,22 @@ bool VM_GetOrSetLocal::is_assignable(const char* ty_sign, Klass* klass, Thread*
ty_sign++;
len -= 2;
}
symbolHandle ty_sym = oopFactory::new_symbol_handle(ty_sign, len, thread);
if (klass->name() == ty_sym()) {
TempNewSymbol ty_sym = SymbolTable::new_symbol(ty_sign, len, thread);
if (klass->name() == ty_sym) {
return true;
}
// Compare primary supers
int super_depth = klass->super_depth();
int idx;
for (idx = 0; idx < super_depth; idx++) {
if (Klass::cast(klass->primary_super_of_depth(idx))->name() == ty_sym()) {
if (Klass::cast(klass->primary_super_of_depth(idx))->name() == ty_sym) {
return true;
}
}
// Compare secondary supers
objArrayOop sec_supers = klass->secondary_supers();
for (idx = 0; idx < sec_supers->length(); idx++) {
if (Klass::cast((klassOop) sec_supers->obj_at(idx))->name() == ty_sym()) {
if (Klass::cast((klassOop) sec_supers->obj_at(idx))->name() == ty_sym) {
return true;
}
}
@ -690,7 +690,7 @@ bool VM_GetOrSetLocal::check_slot_type(javaVFrame* jvf) {
_result = JVMTI_ERROR_INVALID_SLOT;
return false; // Incorrect slot index
}
symbolOop sign_sym = method_oop->constants()->symbol_at(signature_idx);
Symbol* sign_sym = method_oop->constants()->symbol_at(signature_idx);
const char* signature = (const char *) sign_sym->as_utf8();
BasicType slot_type = char2type(signature[0]);