Mercurial > hg > truffle
annotate src/cpu/x86/vm/stubRoutines_x86_32.hpp @ 1627:c5f1ea9e15e8
Merge
author | coleenp |
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date | Mon, 28 Jun 2010 12:03:05 -0400 |
parents | c18cbe5936b8 |
children | d257356e35f0 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // This file holds the platform specific parts of the StubRoutines | |
26 // definition. See stubRoutines.hpp for a description on how to | |
27 // extend it. | |
28 | |
29 enum platform_dependent_constants { | |
30 code_size1 = 9000, // simply increase if too small (assembler will crash if too small) | |
31 code_size2 = 22000 // simply increase if too small (assembler will crash if too small) | |
32 }; | |
33 | |
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34 // MethodHandles adapters |
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35 enum method_handles_platform_dependent_constants { |
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36 method_handles_adapters_code_size = 5000 |
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37 }; |
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38 |
304 | 39 class x86 { |
0 | 40 friend class StubGenerator; |
41 friend class VMStructs; | |
42 | |
43 private: | |
44 // If we call compiled code directly from the call stub we will | |
45 // need to adjust the return back to the call stub to a specialized | |
46 // piece of code that can handle compiled results and cleaning the fpu | |
47 // stack. The variable holds that location. | |
48 static address _call_stub_compiled_return; | |
49 static address _verify_mxcsr_entry; | |
50 static address _verify_fpu_cntrl_wrd_entry; | |
51 static jint _mxcsr_std; | |
52 | |
53 public: | |
54 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; } | |
55 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } | |
56 | |
57 static address get_call_stub_compiled_return() { return _call_stub_compiled_return; } | |
58 static void set_call_stub_compiled_return(address ret) { _call_stub_compiled_return = ret; } | |
59 }; | |
60 | |
61 static bool returns_to_call_stub(address return_pc) { return (return_pc == _call_stub_return_address) || | |
304 | 62 return_pc == x86::get_call_stub_compiled_return(); } |