--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/x86/vm/interpreterRT_x86_64.cpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,508 @@
+/*
+ * Copyright 2003-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_interpreterRT_x86_64.cpp.incl"
+
+#define __ _masm->
+
+// Implementation of SignatureHandlerGenerator
+
+Register InterpreterRuntime::SignatureHandlerGenerator::from() { return r14; }
+Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; }
+Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rscratch1; }
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+#ifdef _WIN64
+ switch (_num_args) {
+ case 0:
+ __ movl(c_rarg1, src);
+ _num_args++;
+ break;
+ case 1:
+ __ movl(c_rarg2, src);
+ _num_args++;
+ break;
+ case 2:
+ __ movl(c_rarg3, src);
+ _num_args++;
+ break;
+ default:
+ __ movl(rax, src);
+ __ movl(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ break;
+ }
+#else
+ switch (_num_int_args) {
+ case 0:
+ __ movl(c_rarg1, src);
+ _num_int_args++;
+ break;
+ case 1:
+ __ movl(c_rarg2, src);
+ _num_int_args++;
+ break;
+ case 2:
+ __ movl(c_rarg3, src);
+ _num_int_args++;
+ break;
+ case 3:
+ __ movl(c_rarg4, src);
+ _num_int_args++;
+ break;
+ case 4:
+ __ movl(c_rarg5, src);
+ _num_int_args++;
+ break;
+ default:
+ __ movl(rax, src);
+ __ movl(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ break;
+ }
+#endif
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1));
+
+#ifdef _WIN64
+ switch (_num_args) {
+ case 0:
+ __ movq(c_rarg1, src);
+ _num_args++;
+ break;
+ case 1:
+ __ movq(c_rarg2, src);
+ _num_args++;
+ break;
+ case 2:
+ __ movq(c_rarg3, src);
+ _num_args++;
+ break;
+ case 3:
+ default:
+ __ movq(rax, src);
+ __ movq(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ break;
+ }
+#else
+ switch (_num_int_args) {
+ case 0:
+ __ movq(c_rarg1, src);
+ _num_int_args++;
+ break;
+ case 1:
+ __ movq(c_rarg2, src);
+ _num_int_args++;
+ break;
+ case 2:
+ __ movq(c_rarg3, src);
+ _num_int_args++;
+ break;
+ case 3:
+ __ movq(c_rarg4, src);
+ _num_int_args++;
+ break;
+ case 4:
+ __ movq(c_rarg5, src);
+ _num_int_args++;
+ break;
+ default:
+ __ movq(rax, src);
+ __ movq(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ break;
+ }
+#endif
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+#ifdef _WIN64
+ if (_num_args < Argument::n_float_register_parameters_c-1) {
+ __ movflt(as_XMMRegister(++_num_args), src);
+ } else {
+ __ movl(rax, src);
+ __ movl(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ }
+#else
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ __ movflt(as_XMMRegister(_num_fp_args++), src);
+ } else {
+ __ movl(rax, src);
+ __ movl(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ }
+#endif
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1));
+
+#ifdef _WIN64
+ if (_num_args < Argument::n_float_register_parameters_c-1) {
+ __ movdbl(as_XMMRegister(++_num_args), src);
+ } else {
+ __ movq(rax, src);
+ __ movq(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ }
+#else
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ __ movdbl(as_XMMRegister(_num_fp_args++), src);
+ } else {
+ __ movq(rax, src);
+ __ movq(Address(to(), _stack_offset), rax);
+ _stack_offset += wordSize;
+ }
+#endif
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+#ifdef _WIN64
+ switch (_num_args) {
+ case 0:
+ assert(offset() == 0, "argument register 1 can only be (non-null) receiver");
+ __ leaq(c_rarg1, src);
+ _num_args++;
+ break;
+ case 1:
+ __ leaq(rax, src);
+ __ xorl(c_rarg2, c_rarg2);
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, c_rarg2, rax);
+ _num_args++;
+ break;
+ case 2:
+ __ leaq(rax, src);
+ __ xorl(c_rarg3, c_rarg3);
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, c_rarg3, rax);
+ _num_args++;
+ break;
+ default:
+ __ leaq(rax, src);
+ __ xorl(temp(), temp());
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, temp(), rax);
+ __ movq(Address(to(), _stack_offset), temp());
+ _stack_offset += wordSize;
+ break;
+ }
+#else
+ switch (_num_int_args) {
+ case 0:
+ assert(offset() == 0, "argument register 1 can only be (non-null) receiver");
+ __ leaq(c_rarg1, src);
+ _num_int_args++;
+ break;
+ case 1:
+ __ leaq(rax, src);
+ __ xorl(c_rarg2, c_rarg2);
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, c_rarg2, rax);
+ _num_int_args++;
+ break;
+ case 2:
+ __ leaq(rax, src);
+ __ xorl(c_rarg3, c_rarg3);
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, c_rarg3, rax);
+ _num_int_args++;
+ break;
+ case 3:
+ __ leaq(rax, src);
+ __ xorl(c_rarg4, c_rarg4);
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, c_rarg4, rax);
+ _num_int_args++;
+ break;
+ case 4:
+ __ leaq(rax, src);
+ __ xorl(c_rarg5, c_rarg5);
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, c_rarg5, rax);
+ _num_int_args++;
+ break;
+ default:
+ __ leaq(rax, src);
+ __ xorl(temp(), temp());
+ __ cmpq(src, 0);
+ __ cmovq(Assembler::notEqual, temp(), rax);
+ __ movq(Address(to(), _stack_offset), temp());
+ _stack_offset += wordSize;
+ break;
+ }
+#endif
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
+ // generate code to handle arguments
+ iterate(fingerprint);
+
+ // return result handler
+ __ lea(rax, ExternalAddress(Interpreter::result_handler(method()->result_type())));
+ __ ret(0);
+
+ __ flush();
+}
+
+
+// Implementation of SignatureHandlerLibrary
+
+void SignatureHandlerLibrary::pd_set_handler(address handler) {}
+
+
+#ifdef _WIN64
+class SlowSignatureHandler
+ : public NativeSignatureIterator {
+ private:
+ address _from;
+ intptr_t* _to;
+ intptr_t* _reg_args;
+ intptr_t* _fp_identifiers;
+ unsigned int _num_args;
+
+#ifdef ASSERT
+ void verify_tag(frame::Tag t) {
+ assert(!TaggedStackInterpreter ||
+ *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag");
+ }
+#endif // ASSERT
+
+ virtual void pass_int()
+ {
+ jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= Interpreter::stackElementSize();
+
+ if (_num_args < Argument::n_int_register_parameters_c-1) {
+ *_reg_args++ = from_obj;
+ _num_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ virtual void pass_long()
+ {
+ intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= 2*Interpreter::stackElementSize();
+
+ if (_num_args < Argument::n_int_register_parameters_c-1) {
+ *_reg_args++ = from_obj;
+ _num_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ virtual void pass_object()
+ {
+ intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
+ debug_only(verify_tag(frame::TagReference));
+ _from -= Interpreter::stackElementSize();
+ if (_num_args < Argument::n_int_register_parameters_c-1) {
+ *_reg_args++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
+ _num_args++;
+ } else {
+ *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
+ }
+ }
+
+ virtual void pass_float()
+ {
+ jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= Interpreter::stackElementSize();
+
+ if (_num_args < Argument::n_float_register_parameters_c-1) {
+ *_reg_args++ = from_obj;
+ *_fp_identifiers |= (0x01 << (_num_args*2)); // mark as float
+ _num_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ virtual void pass_double()
+ {
+ intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= 2*Interpreter::stackElementSize();
+
+ if (_num_args < Argument::n_float_register_parameters_c-1) {
+ *_reg_args++ = from_obj;
+ *_fp_identifiers |= (0x3 << (_num_args*2)); // mark as double
+ _num_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ public:
+ SlowSignatureHandler(methodHandle method, address from, intptr_t* to)
+ : NativeSignatureIterator(method)
+ {
+ _from = from;
+ _to = to;
+
+ _reg_args = to - (method->is_static() ? 4 : 5);
+ _fp_identifiers = to - 2;
+ _to = _to + 4; // Windows reserves stack space for register arguments
+ *(int*) _fp_identifiers = 0;
+ _num_args = (method->is_static() ? 1 : 0);
+ }
+};
+#else
+class SlowSignatureHandler
+ : public NativeSignatureIterator {
+ private:
+ address _from;
+ intptr_t* _to;
+ intptr_t* _int_args;
+ intptr_t* _fp_args;
+ intptr_t* _fp_identifiers;
+ unsigned int _num_int_args;
+ unsigned int _num_fp_args;
+
+#ifdef ASSERT
+ void verify_tag(frame::Tag t) {
+ assert(!TaggedStackInterpreter ||
+ *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag");
+ }
+#endif // ASSERT
+
+ virtual void pass_int()
+ {
+ jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= Interpreter::stackElementSize();
+
+ if (_num_int_args < Argument::n_int_register_parameters_c-1) {
+ *_int_args++ = from_obj;
+ _num_int_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ virtual void pass_long()
+ {
+ intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= 2*Interpreter::stackElementSize();
+
+ if (_num_int_args < Argument::n_int_register_parameters_c-1) {
+ *_int_args++ = from_obj;
+ _num_int_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ virtual void pass_object()
+ {
+ intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
+ debug_only(verify_tag(frame::TagReference));
+ _from -= Interpreter::stackElementSize();
+
+ if (_num_int_args < Argument::n_int_register_parameters_c-1) {
+ *_int_args++ = (*from_addr == 0) ? NULL : (intptr_t)from_addr;
+ _num_int_args++;
+ } else {
+ *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
+ }
+ }
+
+ virtual void pass_float()
+ {
+ jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0));
+ debug_only(verify_tag(frame::TagValue));
+ _from -= Interpreter::stackElementSize();
+
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ *_fp_args++ = from_obj;
+ _num_fp_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ virtual void pass_double()
+ {
+ intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ _from -= 2*Interpreter::stackElementSize();
+
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ *_fp_args++ = from_obj;
+ *_fp_identifiers |= (1 << _num_fp_args); // mark as double
+ _num_fp_args++;
+ } else {
+ *_to++ = from_obj;
+ }
+ }
+
+ public:
+ SlowSignatureHandler(methodHandle method, address from, intptr_t* to)
+ : NativeSignatureIterator(method)
+ {
+ _from = from;
+ _to = to;
+
+ _int_args = to - (method->is_static() ? 14 : 15);
+ _fp_args = to - 9;
+ _fp_identifiers = to - 10;
+ *(int*) _fp_identifiers = 0;
+ _num_int_args = (method->is_static() ? 1 : 0);
+ _num_fp_args = 0;
+ }
+};
+#endif
+
+
+IRT_ENTRY(address,
+ InterpreterRuntime::slow_signature_handler(JavaThread* thread,
+ methodOopDesc* method,
+ intptr_t* from,
+ intptr_t* to))
+ methodHandle m(thread, (methodOop)method);
+ assert(m->is_native(), "sanity check");
+
+ // handle arguments
+ SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1));
+
+ // return result handler
+ return Interpreter::result_handler(m->result_type());
+IRT_END