Exemplo n.º 1
0
void CodeInstaller::pd_relocate_poll(address pc, jint mark, TRAPS) {
  switch (mark) {
    case POLL_NEAR: {
      relocate_poll_near(pc);
      _instructions->relocate(pc, relocInfo::poll_type, Assembler::disp32_operand);
      break;
    }
    case POLL_FAR:
      // This is a load from a register so there is no relocatable operand.
      // We just have to ensure that the format is not disp32_operand
      // so that poll_Relocation::fix_relocation_after_move does the right
      // thing (i.e. ignores this relocation record)
      _instructions->relocate(pc, relocInfo::poll_type, Assembler::imm_operand);
      break;
    case POLL_RETURN_NEAR: {
      relocate_poll_near(pc);
      _instructions->relocate(pc, relocInfo::poll_return_type, Assembler::disp32_operand);
      break;
    }
    case POLL_RETURN_FAR:
      // see comment above for POLL_FAR
      _instructions->relocate(pc, relocInfo::poll_return_type, Assembler::imm_operand);
      break;
    default:
      JVMCI_ERROR("invalid mark value: %d", mark);
      break;
  }
}
Exemplo n.º 2
0
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));
}
Exemplo n.º 3
0
void CodeInstaller::pd_relocate_poll(address pc, jint mark, TRAPS) {
  switch (mark) {
    case POLL_NEAR:
      JVMCI_ERROR("unimplemented");
      break;
    case POLL_FAR:
      _instructions->relocate(pc, relocInfo::poll_type);
      break;
    case POLL_RETURN_NEAR:
      JVMCI_ERROR("unimplemented");
      break;
    case POLL_RETURN_FAR:
      _instructions->relocate(pc, relocInfo::poll_return_type);
      break;
    default:
      JVMCI_ERROR("invalid mark value");
      break;
  }
}
Exemplo n.º 4
0
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));
}
Exemplo n.º 5
0
void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
  address pc = _instructions->start() + pc_offset;
  if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
#ifdef _LP64
    address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
    *((narrowKlass*) operand) = record_narrow_metadata_reference(_instructions, operand, constant, CHECK);
    TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
#else
    JVMCI_ERROR("compressed Klass* on 32bit");
#endif
  } else {
    address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
    *((void**) operand) = record_metadata_reference(_instructions, operand, constant, CHECK);
    TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
  }
}
Exemplo n.º 6
0
void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
  address pc = _instructions->start() + pc_offset;
  if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
#ifdef _LP64
    NativeMovConstReg32* move = nativeMovConstReg32_at(pc);
    narrowKlass narrowOop = record_narrow_metadata_reference(constant, CHECK);
    move->set_data((intptr_t)narrowOop);
    TRACE_jvmci_3("relocating (narrow metaspace constant) at %p/%p", pc, narrowOop);
#else
    JVMCI_ERROR("compressed Klass* on 32bit");
#endif
  } else {
    NativeMovConstReg* move = nativeMovConstReg_at(pc);
    Metadata* reference = record_metadata_reference(constant, CHECK);
    move->set_data((intptr_t)reference);
    TRACE_jvmci_3("relocating (metaspace constant) at %p/%p", pc, reference);
  }
}
Exemplo n.º 7
0
void CodeInstaller::pd_relocate_JavaMethod(Handle hotspot_method, jint pc_offset, TRAPS) {
#ifdef ASSERT
  Method* method = NULL;
  // we need to check, this might also be an unresolved method
  if (hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
    method = getMethodFromHotSpotMethod(hotspot_method());
  }
#endif
  switch (_next_call_type) {
    case INLINE_INVOKE:
      break;
    case INVOKEVIRTUAL:
    case INVOKEINTERFACE: {
      assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface");

      NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
      call->set_destination(SharedRuntime::get_resolve_virtual_call_stub());
      _instructions->relocate(call->instruction_address(),
                                             virtual_call_Relocation::spec(_invoke_mark_pc),
                                             Assembler::call32_operand);
      break;
    }
    case INVOKESTATIC: {
      assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic");

      NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
      call->set_destination(SharedRuntime::get_resolve_static_call_stub());
      _instructions->relocate(call->instruction_address(),
                                             relocInfo::static_call_type, Assembler::call32_operand);
      break;
    }
    case INVOKESPECIAL: {
      assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial");
      NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
      call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub());
      _instructions->relocate(call->instruction_address(),
                              relocInfo::opt_virtual_call_type, Assembler::call32_operand);
      break;
    }
    default:
      JVMCI_ERROR("invalid _next_call_type value");
      break;
  }
}
Exemplo n.º 8
0
void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
  address pc = _instructions->start() + pc_offset;
  Handle obj = HotSpotObjectConstantImpl::object(constant);
  jobject value = JNIHandles::make_local(obj());
  if (HotSpotObjectConstantImpl::compressed(constant)) {
#ifdef _LP64
    address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
    int oop_index = _oop_recorder->find_index(value);
    _instructions->relocate(pc, oop_Relocation::spec(oop_index), Assembler::narrow_oop_operand);
    TRACE_jvmci_3("relocating (narrow oop constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
#else
    JVMCI_ERROR("compressed oop on 32bit");
#endif
  } else {
    address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
    *((jobject*) operand) = value;
    _instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand);
    TRACE_jvmci_3("relocating (oop constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
  }
}
Exemplo n.º 9
0
void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
  address pc = _instructions->start() + pc_offset;
  Handle obj = HotSpotObjectConstantImpl::object(constant);
  jobject value = JNIHandles::make_local(obj());
  if (HotSpotObjectConstantImpl::compressed(constant)) {
#ifdef _LP64
    int oop_index = _oop_recorder->find_index(value);
    RelocationHolder rspec = oop_Relocation::spec(oop_index);
    _instructions->relocate(pc, rspec, 1);
#else
    JVMCI_ERROR("compressed oop on 32bit");
#endif
  } else {
    NativeMovConstReg* move = nativeMovConstReg_at(pc);
    move->set_data((intptr_t) value);

    // We need two relocations:  one on the sethi and one on the add.
    int oop_index = _oop_recorder->find_index(value);
    RelocationHolder rspec = oop_Relocation::spec(oop_index);
    _instructions->relocate(pc + NativeMovConstReg::sethi_offset, rspec);
    _instructions->relocate(pc + NativeMovConstReg::add_offset, rspec);
  }
}