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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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16
hotspot/src/share/vm/classfile/classLoader.cpp
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@ -41,7 +41,7 @@
#include "oops/instanceKlass.hpp"
#include "oops/instanceRefKlass.hpp"
#include "oops/oop.inline.hpp"
#include "oops/symbolOop.hpp"
#include "oops/symbol.hpp"
#include "prims/jvm_misc.hpp"
#include "runtime/arguments.hpp"
#include "runtime/compilationPolicy.hpp"
@ -752,11 +752,7 @@ void PackageHashtable::copy_table(char** top, char* end,
}
}
if (*top + n + sizeof(intptr_t) >= end) {
warning("\nThe shared miscellaneous data space is not large "
"enough to \npreload requested classes. Use "
"-XX:SharedMiscDataSize= to increase \nthe initial "
"size of the miscellaneous data space.\n");
exit(2);
report_out_of_shared_space(SharedMiscData);
}
// Copy the table data (the strings) to the shared space.
@ -875,9 +871,9 @@ objArrayOop ClassLoader::get_system_packages(TRAPS) {
}
instanceKlassHandle ClassLoader::load_classfile(symbolHandle h_name, TRAPS) {
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) {
ResourceMark rm(THREAD);
EventMark m("loading class " INTPTR_FORMAT, (address)h_name());
EventMark m("loading class " INTPTR_FORMAT, (address)h_name);
ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
stringStream st;
@ -912,7 +908,7 @@ instanceKlassHandle ClassLoader::load_classfile(symbolHandle h_name, TRAPS) {
ClassFileParser parser(stream);
Handle class_loader;
Handle protection_domain;
symbolHandle parsed_name;
TempNewSymbol parsed_name = NULL;
instanceKlassHandle result = parser.parseClassFile(h_name,
class_loader,
protection_domain,
@ -1308,7 +1304,7 @@ void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
if (_compile_the_world_counter > CompileTheWorldStopAt) return;
// Construct name without extension
symbolHandle sym = oopFactory::new_symbol_handle(buffer, CHECK);
TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK);
// Use loader to load and initialize class
klassOop ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD);
instanceKlassHandle k (THREAD, ik);