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Java example source code file (interpreterRT_sparc.cpp)
The interpreterRT_sparc.cpp Java example source code/* * Copyright (c) 1998, 2012, Oracle and/or its affiliates. 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-> // Implementation of SignatureHandlerGenerator void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) { Argument jni_arg(jni_offset() + offset_in_arg, false); Register Rtmp = O0; __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); __ store_argument(Rtmp, jni_arg); } void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { Argument jni_arg(jni_offset(), false); Register Rtmp = O0; #ifdef _LP64 __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); __ store_long_argument(Rtmp, jni_arg); #else __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); __ store_argument(Rtmp, jni_arg); __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp); Argument successor(jni_arg.successor()); __ store_argument(Rtmp, successor); #endif } void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { Argument jni_arg(jni_offset(), false); #ifdef _LP64 FloatRegister Rtmp = F0; __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); __ store_float_argument(Rtmp, jni_arg); #else Register Rtmp = O0; __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); __ store_argument(Rtmp, jni_arg); #endif } void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { Argument jni_arg(jni_offset(), false); #ifdef _LP64 FloatRegister Rtmp = F0; __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); __ store_double_argument(Rtmp, jni_arg); #else Register Rtmp = O0; __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); __ store_argument(Rtmp, jni_arg); __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); Argument successor(jni_arg.successor()); __ store_argument(Rtmp, successor); #endif } void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { Argument jni_arg(jni_offset(), false); Argument java_arg( offset(), true); Register Rtmp1 = O0; Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0; Register Rtmp3 = G3_scratch; // the handle for a receiver will never be null bool do_NULL_check = offset() != 0 || is_static(); Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset())); __ ld_ptr(h_arg, Rtmp1); if (!do_NULL_check) { __ add(h_arg.base(), h_arg.disp(), Rtmp2); } else { if (Rtmp1 == Rtmp2) __ tst(Rtmp1); else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair Label L; __ brx(Assembler::notZero, true, Assembler::pt, L); __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2); __ bind(L); } __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op } void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { // generate code to handle arguments iterate(fingerprint); // return result handler AddressLiteral result_handler(Interpreter::result_handler(method()->result_type())); __ sethi(result_handler, Lscratch); __ retl(); __ delayed()->add(Lscratch, result_handler.low10(), Lscratch); __ flush(); } // Implementation of SignatureHandlerLibrary void SignatureHandlerLibrary::pd_set_handler(address handler) {} class SlowSignatureHandler: public NativeSignatureIterator { private: address _from; intptr_t* _to; intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers uint _argcount; enum { // We need to differenciate float from non floats in reg args non_float = 0, float_sig = 1, double_sig = 2, long_sig = 3 }; virtual void pass_int() { *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); _from -= Interpreter::stackElementSize; add_signature( non_float ); } virtual void pass_object() { // pass address of from intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; _from -= Interpreter::stackElementSize; add_signature( non_float ); } #ifdef _LP64 virtual void pass_float() { *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); _from -= Interpreter::stackElementSize; add_signature( float_sig ); } virtual void pass_double() { *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); _from -= 2*Interpreter::stackElementSize; add_signature( double_sig ); } virtual void pass_long() { _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); _to += 1; _from -= 2*Interpreter::stackElementSize; add_signature( long_sig ); } #else // pass_double() is pass_long() and pass_float() only _LP64 virtual void pass_long() { _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); _to += 2; _from -= 2*Interpreter::stackElementSize; add_signature( non_float ); } virtual void pass_float() { *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); _from -= Interpreter::stackElementSize; add_signature( non_float ); } #endif // _LP64 virtual void add_signature( intptr_t sig_type ) { if ( _argcount < (sizeof (intptr_t))*4 ) { *_RegArgSignature |= (sig_type << (_argcount*2) ); _argcount++; } } public: SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) { _from = from; _to = to; _RegArgSignature = RegArgSig; *_RegArgSignature = 0; _argcount = method->is_static() ? 2 : 1; } }; IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler( JavaThread* thread, Method* method, intptr_t* from, intptr_t* to )) methodHandle m(thread, method); assert(m->is_native(), "sanity check"); // handle arguments // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature // back to the code that pops the arguments into the CPU registers SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1)); // return result handler return Interpreter::result_handler(m->result_type()); IRT_END Other Java examples (source code examples)Here is a short list of links related to this Java interpreterRT_sparc.cpp source code file: |
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