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comparison src/cpu/ppc/vm/interpreterRT_ppc.cpp @ 14408:ec28f9c041ff

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8019972: PPC64 (part 9): platform files for interpreter only VM. Summary: With this change the HotSpot core build works on Linux/PPC64. The VM succesfully executes simple test programs. Reviewed-by: kvn
author goetz
date Fri, 02 Aug 2013 16:46:45 +0200
parents
children e5e8aa897002
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14407:94c202aa2646 14408:ec28f9c041ff
1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2012, 2013 SAP AG. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #include "precompiled.hpp"
27 #include "interpreter/interpreter.hpp"
28 #include "interpreter/interpreterRuntime.hpp"
29 #include "memory/allocation.inline.hpp"
30 #include "memory/universe.inline.hpp"
31 #include "oops/method.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "runtime/handles.inline.hpp"
34 #include "runtime/icache.hpp"
35 #include "runtime/interfaceSupport.hpp"
36 #include "runtime/signature.hpp"
37
38 #define __ _masm->
39
40 // Access macros for Java and C arguments.
41 // The first Java argument is at index -1.
42 #define locals_j_arg_at(index) (Interpreter::local_offset_in_bytes(index)), R18_locals
43 // The first C argument is at index 0.
44 #define sp_c_arg_at(index) ((index)*wordSize + _abi(carg_1)), R1_SP
45
46 // Implementation of SignatureHandlerGenerator
47
48 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
49 Argument jni_arg(jni_offset());
50 Register r = jni_arg.is_register() ? jni_arg.as_register() : R0;
51
52 __ lwa(r, locals_j_arg_at(offset())); // sign extension of integer
53 if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
54 __ std(r, sp_c_arg_at(jni_arg.number()));
55 }
56 }
57
58 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
59 Argument jni_arg(jni_offset());
60 Register r = jni_arg.is_register() ? jni_arg.as_register() : R0;
61
62 __ ld(r, locals_j_arg_at(offset()+1)); // long resides in upper slot
63 if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
64 __ std(r, sp_c_arg_at(jni_arg.number()));
65 }
66 }
67
68 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
69 FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/)
70 ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding())
71 : F0;
72
73 __ lfs(fp_reg, locals_j_arg_at(offset()));
74 if (DEBUG_ONLY(true ||) jni_offset() > 8) {
75 __ stfs(fp_reg, sp_c_arg_at(jni_offset()));
76 }
77 }
78
79 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
80 FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/)
81 ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding())
82 : F0;
83
84 __ lfd(fp_reg, locals_j_arg_at(offset()+1));
85 if (DEBUG_ONLY(true ||) jni_offset() > 8) {
86 __ stfd(fp_reg, sp_c_arg_at(jni_offset()));
87 }
88 }
89
90 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
91 Argument jni_arg(jni_offset());
92 Register r = jni_arg.is_register() ? jni_arg.as_register() : R11_scratch1;
93
94 // The handle for a receiver will never be null.
95 bool do_NULL_check = offset() != 0 || is_static();
96
97 Label do_null;
98 if (do_NULL_check) {
99 __ ld(R0, locals_j_arg_at(offset()));
100 __ cmpdi(CCR0, R0, 0);
101 __ li(r, 0);
102 __ beq(CCR0, do_null);
103 }
104 __ addir(r, locals_j_arg_at(offset()));
105 __ bind(do_null);
106 if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
107 __ std(r, sp_c_arg_at(jni_arg.number()));
108 }
109 }
110
111 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
112 // Emit fd for current codebuffer. Needs patching!
113 __ emit_fd();
114
115 // Generate code to handle arguments.
116 iterate(fingerprint);
117
118 // Return the result handler.
119 __ load_const(R3_RET, AbstractInterpreter::result_handler(method()->result_type()));
120 __ blr();
121
122 __ flush();
123 }
124
125 #undef __
126
127 // Implementation of SignatureHandlerLibrary
128
129 void SignatureHandlerLibrary::pd_set_handler(address handler) {
130 // patch fd here.
131 FunctionDescriptor* fd = (FunctionDescriptor*) handler;
132
133 fd->set_entry(handler + (int)sizeof(FunctionDescriptor));
134 assert(fd->toc() == (address)0xcafe, "need to adjust TOC here");
135 }
136
137
138 // Access function to get the signature.
139 IRT_ENTRY(address, InterpreterRuntime::get_signature(JavaThread* thread, Method* method))
140 methodHandle m(thread, method);
141 assert(m->is_native(), "sanity check");
142 Symbol *s = m->signature();
143 return (address) s->base();
144 IRT_END
145
146 IRT_ENTRY(address, InterpreterRuntime::get_result_handler(JavaThread* thread, Method* method))
147 methodHandle m(thread, method);
148 assert(m->is_native(), "sanity check");
149 return AbstractInterpreter::result_handler(m->result_type());
150 IRT_END