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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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11
hotspot/src/share/vm/prims/jvmtiClassFileReconstituter.cpp
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@ -461,11 +461,11 @@ void JvmtiClassFileReconstituter::write_method_info(methodHandle method) {
// JVMSpec| attribute_info attributes[attributes_count];
void JvmtiClassFileReconstituter::write_class_attributes() {
u2 inner_classes_length = inner_classes_attribute_length();
symbolHandle generic_signature(thread(), ikh()->generic_signature());
Symbol* generic_signature = ikh()->generic_signature();
typeArrayHandle anno(thread(), ikh()->class_annotations());
int attr_count = 0;
if (generic_signature() != NULL) {
if (generic_signature != NULL) {
++attr_count;
}
if (ikh()->source_file_name() != NULL) {
@ -483,8 +483,8 @@ void JvmtiClassFileReconstituter::write_class_attributes() {
write_u2(attr_count);
if (generic_signature() != NULL) {
write_signature_attribute(symbol_to_cpool_index(generic_signature()));
if (generic_signature != NULL) {
write_signature_attribute(symbol_to_cpool_index(generic_signature));
}
if (ikh()->source_file_name() != NULL) {
write_source_file_attribute();
@ -609,8 +609,7 @@ address JvmtiClassFileReconstituter::writeable_address(size_t size) {
}
void JvmtiClassFileReconstituter::write_attribute_name_index(const char* name) {
unsigned int hash_ignored;
symbolOop sym = SymbolTable::lookup_only(name, (int)strlen(name), hash_ignored);
TempNewSymbol sym = SymbolTable::probe(name, (int)strlen(name));
assert(sym != NULL, "attribute name symbol not found");
u2 attr_name_index = symbol_to_cpool_index(sym);
assert(attr_name_index != 0, "attribute name symbol not in constant pool");