8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
Summary: This optimization reduces the size of the RW region of the CDS archive. It also reduces the amount of pages in the RW region that are actually written into during runtime.
Reviewed-by: dlong, iklam, jiangli
Contributed-by: ioi.lam@oracle.com, calvin.cheung@oracle.com, goetz.lindenmaier@sap.com
/*
* Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "asm/assembler.hpp"
#include "assembler_zero.inline.hpp"
#include "code/debugInfoRec.hpp"
#include "code/icBuffer.hpp"
#include "code/vtableStubs.hpp"
#include "interpreter/interpreter.hpp"
#include "oops/compiledICHolder.hpp"
#include "prims/jvmtiRedefineClassesTrace.hpp"
#include "runtime/sharedRuntime.hpp"
#include "runtime/vframeArray.hpp"
#include "vmreg_zero.inline.hpp"
#ifdef COMPILER1
#include "c1/c1_Runtime1.hpp"
#endif
#ifdef COMPILER2
#include "opto/runtime.hpp"
#endif
#ifdef SHARK
#include "compiler/compileBroker.hpp"
#include "shark/sharkCompiler.hpp"
#endif
static address zero_null_code_stub() {
address start = ShouldNotCallThisStub();
return start;
}
int SharedRuntime::java_calling_convention(const BasicType *sig_bt,
VMRegPair *regs,
int total_args_passed,
int is_outgoing) {
return 0;
}
AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(
MacroAssembler *masm,
int total_args_passed,
int comp_args_on_stack,
const BasicType *sig_bt,
const VMRegPair *regs,
AdapterFingerPrint *fingerprint) {
return AdapterHandlerLibrary::new_entry(
fingerprint,
CAST_FROM_FN_PTR(address,zero_null_code_stub),
CAST_FROM_FN_PTR(address,zero_null_code_stub),
CAST_FROM_FN_PTR(address,zero_null_code_stub));
}
nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
const methodHandle& method,
int compile_id,
BasicType *sig_bt,
VMRegPair *regs,
BasicType ret_type) {
#ifdef SHARK
return SharkCompiler::compiler()->generate_native_wrapper(masm,
method,
compile_id,
sig_bt,
ret_type);
#else
ShouldNotCallThis();
return NULL;
#endif // SHARK
}
int Deoptimization::last_frame_adjust(int callee_parameters,
int callee_locals) {
return 0;
}
uint SharedRuntime::out_preserve_stack_slots() {
ShouldNotCallThis();
return 0;
}
JRT_LEAF(void, zero_stub())
ShouldNotCallThis();
JRT_END
static RuntimeStub* generate_empty_runtime_stub(const char* name) {
return CAST_FROM_FN_PTR(RuntimeStub*,zero_stub);
}
static SafepointBlob* generate_empty_safepoint_blob() {
return CAST_FROM_FN_PTR(SafepointBlob*,zero_stub);
}
static DeoptimizationBlob* generate_empty_deopt_blob() {
return CAST_FROM_FN_PTR(DeoptimizationBlob*,zero_stub);
}
void SharedRuntime::generate_deopt_blob() {
_deopt_blob = generate_empty_deopt_blob();
}
SafepointBlob* SharedRuntime::generate_handler_blob(address call_ptr, int poll_type) {
return generate_empty_safepoint_blob();
}
RuntimeStub* SharedRuntime::generate_resolve_blob(address destination, const char* name) {
return generate_empty_runtime_stub("resolve_blob");
}
size_t SharedRuntime::trampoline_size() {
ShouldNotCallThis();
return 0;
}
void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
ShouldNotCallThis();
return;
}
int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
VMRegPair *regs,
VMRegPair *regs2,
int total_args_passed) {
ShouldNotCallThis();
return 0;
}