assembler_zero.hpp revision 1879:f95d63e2154a 
1/*
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3 * Copyright 2007, 2008, 2009 Red Hat, Inc.
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8 * published by the Free Software Foundation.
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
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25
26#ifndef CPU_ZERO_VM_ASSEMBLER_ZERO_HPP
27#define CPU_ZERO_VM_ASSEMBLER_ZERO_HPP
28
29// In normal, CPU-specific ports of HotSpot these two classes are used
30// for generating assembly language.  We don't do any of this in zero,
31// of course, but we do sneak entry points around in CodeBuffers so we
32// generate those here.
33
34class Assembler : public AbstractAssembler {
35 public:
36  Assembler(CodeBuffer* code) : AbstractAssembler(code) {}
37
38 public:
39  void pd_patch_instruction(address branch, address target);
40#ifndef PRODUCT
41  static void pd_print_patched_instruction(address branch);
42#endif // PRODUCT
43};
44
45class MacroAssembler : public Assembler {
46 public:
47  MacroAssembler(CodeBuffer* code) : Assembler(code) {}
48
49 public:
50  void align(int modulus);
51  void bang_stack_with_offset(int offset);
52  bool needs_explicit_null_check(intptr_t offset);
53  RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr,
54                                        Register tmp, int offset);
55 public:
56  void advance(int bytes);
57  void store_oop(jobject obj);
58};
59
60#ifdef ASSERT
61inline bool AbstractAssembler::pd_check_instruction_mark() {
62  ShouldNotCallThis();
63}
64#endif
65
66address ShouldNotCallThisStub();
67address ShouldNotCallThisEntry();
68
69#endif // CPU_ZERO_VM_ASSEMBLER_ZERO_HPP
70