Mercurial > hg > truffle

annotate src/cpu/x86/vm/compiledIC_x86.cpp @ 20693:31d3306aad29 jdk8u40-b18

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added tag hs25.40-b22 for changeset bc5a90a4db47
author amurillo
date Fri, 05 Dec 2014 09:47:16 -0800
parents c64b6b0c40c8
children 7848fc12602b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10168
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
1 /*
17937
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 10168
diff changeset
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
10168
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
4 *
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
7 * published by the Free Software Foundation.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
8 *
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
13 * accompanied this code).
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
14 *
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
18 *
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
21 * questions.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
22 *
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
23 */
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
24
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
25 #include "precompiled.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
26 #include "asm/macroAssembler.inline.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
27 #include "code/compiledIC.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
28 #include "code/icBuffer.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
29 #include "code/nmethod.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
30 #include "memory/resourceArea.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
31 #include "runtime/mutexLocker.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
32 #include "runtime/safepoint.hpp"
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
33
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
34 // Release the CompiledICHolder* associated with this call site is there is one.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
35 void CompiledIC::cleanup_call_site(virtual_call_Relocation* call_site) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
36 // This call site might have become stale so inspect it carefully.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
37 NativeCall* call = nativeCall_at(call_site->addr());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
38 if (is_icholder_entry(call->destination())) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
39 NativeMovConstReg* value = nativeMovConstReg_at(call_site->cached_value());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
40 InlineCacheBuffer::queue_for_release((CompiledICHolder*)value->data());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
41 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
42 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
43
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
44 bool CompiledIC::is_icholder_call_site(virtual_call_Relocation* call_site) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
45 // This call site might have become stale so inspect it carefully.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
46 NativeCall* call = nativeCall_at(call_site->addr());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
47 return is_icholder_entry(call->destination());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
48 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
49
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
50 // ----------------------------------------------------------------------------
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
51
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
52 #define __ _masm.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
53 void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
54 // Stub is fixed up when the corresponding call is converted from
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
55 // calling compiled code to calling interpreted code.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
56 // movq rbx, 0
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
57 // jmp -5 # to self
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
58
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
59 address mark = cbuf.insts_mark(); // Get mark within main instrs section.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
60
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
61 // Note that the code buffer's insts_mark is always relative to insts.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
62 // That's why we must use the macroassembler to generate a stub.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
63 MacroAssembler _masm(&cbuf);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
64
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
65 address base =
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
66 __ start_a_stub(to_interp_stub_size()*2);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
67 if (base == NULL) return; // CodeBuffer::expand failed.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
68 // Static stub relocation stores the instruction address of the call.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
69 __ relocate(static_stub_Relocation::spec(mark), Assembler::imm_operand);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
70 // Static stub relocation also tags the Method* in the code-stream.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
71 __ mov_metadata(rbx, (Metadata*) NULL); // Method is zapped till fixup time.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
72 // This is recognized as unresolved by relocs/nativeinst/ic code.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
73 __ jump(RuntimeAddress(__ pc()));
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
74
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
75 // Update current stubs pointer and restore insts_end.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
76 __ end_a_stub();
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
77 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
78 #undef __
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
79
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
80 int CompiledStaticCall::to_interp_stub_size() {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
81 return NOT_LP64(10) // movl; jmp
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
82 LP64_ONLY(15); // movq (1+1+8); jmp (1+4)
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
83 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
84
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
85 // Relocation entries for call stub, compiled java to interpreter.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
86 int CompiledStaticCall::reloc_to_interp_stub() {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
87 return 4; // 3 in emit_to_interp_stub + 1 in emit_call
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
88 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
89
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
90 void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
91 address stub = find_stub();
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
92 guarantee(stub != NULL, "stub not found");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
93
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
94 if (TraceICs) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
95 ResourceMark rm;
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
96 tty->print_cr("CompiledStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
17937
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 10168
diff changeset
97 p2i(instruction_address()),
10168
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
98 callee->name_and_sig_as_C_string());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
99 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
100
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
101 // Creation also verifies the object.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
102 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
103 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
104
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
105 assert(method_holder->data() == 0 || method_holder->data() == (intptr_t)callee(),
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
106 "a) MT-unsafe modification of inline cache");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
107 assert(jump->jump_destination() == (address)-1 || jump->jump_destination() == entry,
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
108 "b) MT-unsafe modification of inline cache");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
109
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
110 // Update stub.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
111 method_holder->set_data((intptr_t)callee());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
112 jump->set_jump_destination(entry);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
113
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
114 // Update jump to call.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
115 set_destination_mt_safe(stub);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
116 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
117
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
118 void CompiledStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
119 assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), "mt unsafe call");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
120 // Reset stub.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
121 address stub = static_stub->addr();
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
122 assert(stub != NULL, "stub not found");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
123 // Creation also verifies the object.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
124 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
125 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
126 method_holder->set_data(0);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
127 jump->set_jump_destination((address)-1);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
128 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
129
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
130 //-----------------------------------------------------------------------------
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
131 // Non-product mode code
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
132 #ifndef PRODUCT
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
133
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
134 void CompiledStaticCall::verify() {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
135 // Verify call.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
136 NativeCall::verify();
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
137 if (os::is_MP()) {
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
138 verify_alignment();
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
139 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
140
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
141 // Verify stub.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
142 address stub = find_stub();
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
143 assert(stub != NULL, "no stub found for static call");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
144 // Creation also verifies the object.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
145 NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
146 NativeJump* jump = nativeJump_at(method_holder->next_instruction_address());
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
147
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
148 // Verify state.
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
149 assert(is_clean() || is_call_to_compiled() || is_call_to_interpreted(), "sanity check");
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
150 }
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
151
a6e09d6dd8e5 8003853: specify offset of IC load in java_to_interp stub
dlong
parents:
diff changeset
152 #endif // !PRODUCT