assembler_zero.hpp revision 1010:354d3184f6b2 
1/*
2 * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
3 * Copyright 2007, 2008, 2009 Red Hat, Inc.
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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 */
25
26// In normal, CPU-specific ports of HotSpot these two classes are used
27// for generating assembly language.  We don't do any of this in zero,
28// of course, but we do sneak entry points around in CodeBuffers so we
29// generate those here.
30
31class Assembler : public AbstractAssembler {
32 public:
33  Assembler(CodeBuffer* code) : AbstractAssembler(code) {}
34
35 public:
36  void pd_patch_instruction(address branch, address target);
37#ifndef PRODUCT
38  static void pd_print_patched_instruction(address branch);
39#endif // PRODUCT
40};
41
42class MacroAssembler : public Assembler {
43 public:
44  MacroAssembler(CodeBuffer* code) : Assembler(code) {}
45
46 public:
47  void align(int modulus);
48  void bang_stack_with_offset(int offset);
49  bool needs_explicit_null_check(intptr_t offset);
50  RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr,
51                                        Register tmp, int offset);
52 public:
53  void advance(int bytes);
54  void store_oop(jobject obj);
55};
56
57#ifdef ASSERT
58inline bool AbstractAssembler::pd_check_instruction_mark() {
59  ShouldNotCallThis();
60}
61#endif
62
63address ShouldNotCallThisStub();
64address ShouldNotCallThisEntry();
65