diff options
Diffstat (limited to 'src/cpu/ppc/vm/interpreterRT_ppc.cpp')
-rw-r--r-- | src/cpu/ppc/vm/interpreterRT_ppc.cpp | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/cpu/ppc/vm/interpreterRT_ppc.cpp b/src/cpu/ppc/vm/interpreterRT_ppc.cpp new file mode 100644 index 000000000..5d45d8bf8 --- /dev/null +++ b/src/cpu/ppc/vm/interpreterRT_ppc.cpp @@ -0,0 +1,154 @@ +/* + * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright 2012, 2013 SAP AG. All rights reserved. + * 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 "interpreter/interpreter.hpp" +#include "interpreter/interpreterRuntime.hpp" +#include "memory/allocation.inline.hpp" +#include "memory/universe.inline.hpp" +#include "oops/method.hpp" +#include "oops/oop.inline.hpp" +#include "runtime/handles.inline.hpp" +#include "runtime/icache.hpp" +#include "runtime/interfaceSupport.hpp" +#include "runtime/signature.hpp" + +#define __ _masm-> + +// Access macros for Java and C arguments. +// The first Java argument is at index -1. +#define locals_j_arg_at(index) (Interpreter::local_offset_in_bytes(index)), R18_locals +// The first C argument is at index 0. +#define sp_c_arg_at(index) ((index)*wordSize + _abi(carg_1)), R1_SP + +// Implementation of SignatureHandlerGenerator + +void InterpreterRuntime::SignatureHandlerGenerator::pass_int() { + Argument jni_arg(jni_offset()); + Register r = jni_arg.is_register() ? jni_arg.as_register() : R0; + + __ lwa(r, locals_j_arg_at(offset())); // sign extension of integer + if (DEBUG_ONLY(true ||) !jni_arg.is_register()) { + __ std(r, sp_c_arg_at(jni_arg.number())); + } +} + +void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { + Argument jni_arg(jni_offset()); + Register r = jni_arg.is_register() ? jni_arg.as_register() : R0; + + __ ld(r, locals_j_arg_at(offset()+1)); // long resides in upper slot + if (DEBUG_ONLY(true ||) !jni_arg.is_register()) { + __ std(r, sp_c_arg_at(jni_arg.number())); + } +} + +void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { + FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/) + ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding()) + : F0; + + __ lfs(fp_reg, locals_j_arg_at(offset())); + if (DEBUG_ONLY(true ||) jni_offset() > 8) { + __ stfs(fp_reg, sp_c_arg_at(jni_offset())); + } +} + +void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { + FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/) + ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding()) + : F0; + + __ lfd(fp_reg, locals_j_arg_at(offset()+1)); + if (DEBUG_ONLY(true ||) jni_offset() > 8) { + __ stfd(fp_reg, sp_c_arg_at(jni_offset())); + } +} + +void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { + Argument jni_arg(jni_offset()); + Register r = jni_arg.is_register() ? jni_arg.as_register() : R11_scratch1; + + // The handle for a receiver will never be null. + bool do_NULL_check = offset() != 0 || is_static(); + + Label do_null; + if (do_NULL_check) { + __ ld(R0, locals_j_arg_at(offset())); + __ cmpdi(CCR0, R0, 0); + __ li(r, 0); + __ beq(CCR0, do_null); + } + __ addir(r, locals_j_arg_at(offset())); + __ bind(do_null); + if (DEBUG_ONLY(true ||) !jni_arg.is_register()) { + __ std(r, sp_c_arg_at(jni_arg.number())); + } +} + +void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { +#if !defined(ABI_ELFv2) + // Emit fd for current codebuffer. Needs patching! + __ emit_fd(); +#endif + + // Generate code to handle arguments. + iterate(fingerprint); + + // Return the result handler. + __ load_const(R3_RET, AbstractInterpreter::result_handler(method()->result_type())); + __ blr(); + + __ flush(); +} + +#undef __ + +// Implementation of SignatureHandlerLibrary + +void SignatureHandlerLibrary::pd_set_handler(address handler) { +#if !defined(ABI_ELFv2) + // patch fd here. + FunctionDescriptor* fd = (FunctionDescriptor*) handler; + + fd->set_entry(handler + (int)sizeof(FunctionDescriptor)); + assert(fd->toc() == (address)0xcafe, "need to adjust TOC here"); +#endif +} + + +// Access function to get the signature. +IRT_ENTRY(address, InterpreterRuntime::get_signature(JavaThread* thread, Method* method)) + methodHandle m(thread, method); + assert(m->is_native(), "sanity check"); + Symbol *s = m->signature(); + return (address) s->base(); +IRT_END + +IRT_ENTRY(address, InterpreterRuntime::get_result_handler(JavaThread* thread, Method* method)) + methodHandle m(thread, method); + assert(m->is_native(), "sanity check"); + return AbstractInterpreter::result_handler(m->result_type()); +IRT_END |