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C++ NativeJump::instruction_address方法代码示例

本文整理汇总了C++中NativeJump::instruction_address方法的典型用法代码示例。如果您正苦于以下问题:C++ NativeJump::instruction_address方法的具体用法?C++ NativeJump::instruction_address怎么用?C++ NativeJump::instruction_address使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在NativeJump的用法示例。


在下文中一共展示了NativeJump::instruction_address方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: pd_relocate_ForeignCall

void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS) {
  address pc = (address) inst;
  if (inst->is_call()) {
    // NOTE: for call without a mov, the offset must fit a 32-bit immediate
    //       see also CompilerToVM.getMaxCallTargetOffset()
    NativeCall* call = nativeCall_at(pc);
    call->set_destination((address) foreign_call_destination);
    _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
  } else if (inst->is_mov_literal64()) {
    NativeMovConstReg* mov = nativeMovConstReg_at(pc);
    mov->set_data((intptr_t) foreign_call_destination);
    _instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand);
  } else if (inst->is_jump()) {
    NativeJump* jump = nativeJump_at(pc);
    jump->set_jump_destination((address) foreign_call_destination);
    _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
  } else if (inst->is_cond_jump()) {
    address old_dest = nativeGeneralJump_at(pc)->jump_destination();
    address disp = Assembler::locate_operand(pc, Assembler::call32_operand);
    *(jint*) disp += ((address) foreign_call_destination) - old_dest;
    _instructions->relocate(pc, runtime_call_Relocation::spec(), Assembler::call32_operand);
  } else {
    JVMCI_ERROR("unsupported relocation for foreign call");
  }

  TRACE_jvmci_3("relocating (foreign call)  at " PTR_FORMAT, p2i(inst));
}
开发者ID:mearvk,项目名称:JVM,代码行数:27,代码来源:jvmciCodeInstaller_x86.cpp

示例2: test

// Code for unit testing implementation of NativeJump class
void NativeJump::test() {
#ifdef ASSERT
  ResourceMark rm;
  CodeBuffer cb("test", 100, 100);
  MacroAssembler* a = new MacroAssembler(&cb);
  NativeJump* nj;
  uint idx;
  int offsets[] = {
    0x0,
    0xffffffff,
    0x7fffffff,
    0x80000000,
    4096,
    4097,
    0x20,
    0x4000,
  };

  VM_Version::allow_all();

  AddressLiteral al(0x7fffbbbb, relocInfo::external_word_type);
  a->sethi(al, I3);
  a->jmpl(I3, al.low10(), G0, RelocationHolder::none);
  a->delayed()->nop();
  a->sethi(al, I3);
  a->jmpl(I3, al.low10(), L3, RelocationHolder::none);
  a->delayed()->nop();

  nj = nativeJump_at( cb.insts_begin() );
  nj->print();

  nj = nativeJump_at( nj->next_instruction_address() );
  for (idx = 0; idx < ARRAY_SIZE(offsets); idx++) {
    nj->set_jump_destination( nj->instruction_address() + offsets[idx] );
    assert(nj->jump_destination() == (nj->instruction_address() + offsets[idx]), "check unit test");
    nj->print();
  }

  VM_Version::revert();
#endif // ASSERT
}
开发者ID:lmsf,项目名称:jdk9-dev,代码行数:42,代码来源:nativeInst_sparc.cpp

示例3: pd_relocate_ForeignCall

void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS) {
  address pc = (address) inst;
  if (inst->is_call()) {
    NativeCall* call = nativeCall_at(pc);
    call->set_destination((address) foreign_call_destination);
    _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec());
  } else if (inst->is_sethi()) {
    NativeJump* jump = nativeJump_at(pc);
    jump->set_jump_destination((address) foreign_call_destination);
    _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec());
  } else {
    JVMCI_ERROR("unknown call or jump instruction at " PTR_FORMAT, p2i(pc));
  }
  TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
}
开发者ID:gaoxiaojun,项目名称:dync,代码行数:15,代码来源:jvmciCodeInstaller_sparc.cpp


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