C++ (Cpp) to_interp_stub_size Examples

Example #1

File: compiledIC_sparc.cpp Project: gaoxiaojun/dync

address CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf, address mark) {
  // Stub is fixed up when the corresponding call is converted from calling
  // compiled code to calling interpreted code.
  // set (empty), G5
  // jmp -1

  if (mark == NULL) {
    mark = cbuf.insts_mark();  // Get mark within main instrs section.
  }

  MacroAssembler _masm(&cbuf);

  address base = __ start_a_stub(to_interp_stub_size());
  if (base == NULL) {
    return NULL;  // CodeBuffer::expand failed.
  }

  // Static stub relocation stores the instruction address of the call.
  __ relocate(static_stub_Relocation::spec(mark));

  __ set_metadata(NULL, as_Register(Matcher::inline_cache_reg_encode()));

  __ set_inst_mark();
  AddressLiteral addrlit(-1);
  __ JUMP(addrlit, G3, 0);

  __ delayed()->nop();

  assert(__ pc() - base <= to_interp_stub_size(), "wrong stub size");

  // Update current stubs pointer and restore code_end.
  __ end_a_stub();
  return base;
}

Example #2

File: compiledIC_x86.cpp Project: campolake/openjdk9

address CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf, address mark) {
  // Stub is fixed up when the corresponding call is converted from
  // calling compiled code to calling interpreted code.
  // movq rbx, 0
  // jmp -5 # to self

  if (mark == NULL) {
    mark = cbuf.insts_mark();  // Get mark within main instrs section.
  }

  // Note that the code buffer's insts_mark is always relative to insts.
  // That's why we must use the macroassembler to generate a stub.
  MacroAssembler _masm(&cbuf);

  address base = __ start_a_stub(to_interp_stub_size());
  if (base == NULL) {
    return NULL;  // CodeBuffer::expand failed.
  }
  // Static stub relocation stores the instruction address of the call.
  __ relocate(static_stub_Relocation::spec(mark), Assembler::imm_operand);
  // Static stub relocation also tags the Method* in the code-stream.
  __ mov_metadata(rbx, (Metadata*) NULL);  // Method is zapped till fixup time.
  // This is recognized as unresolved by relocs/nativeinst/ic code.
  __ jump(RuntimeAddress(__ pc()));

  assert(__ pc() - base <= to_interp_stub_size(), "wrong stub size");

  // Update current stubs pointer and restore insts_end.
  __ end_a_stub();
  return base;
}

Example #3

File: compiledIC_aarch64.cpp Project: benbenolson/hotspot_9_mc

void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) {
  // Stub is fixed up when the corresponding call is converted from
  // calling compiled code to calling interpreted code.
  // mov rmethod, 0
  // jmp -4 # to self

  address mark = cbuf.insts_mark();  // Get mark within main instrs section.

  // Note that the code buffer's insts_mark is always relative to insts.
  // That's why we must use the macroassembler to generate a stub.
  MacroAssembler _masm(&cbuf);

  address base = __ start_a_stub(to_interp_stub_size()*2);

  int offset = __ offset();
  if (base == NULL)  return;  // CodeBuffer::expand failed
  // static stub relocation stores the instruction address of the call
  __ relocate(static_stub_Relocation::spec(mark));
  // static stub relocation also tags the Method* in the code-stream.
  __ mov_metadata(rmethod, (Metadata*)NULL);
  __ movptr(rscratch1, 0);
  __ br(rscratch1);

  assert((__ offset() - offset) <= (int)to_interp_stub_size(), "stub too big");
  __ end_a_stub();
}

Example #4

File: compiledIC_sparc.cpp Project: MyProgrammingStyle/hotspot

void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) {
#ifdef COMPILER2
  // Stub is fixed up when the corresponding call is converted from calling
  // compiled code to calling interpreted code.
  // set (empty), G5
  // jmp -1

  address mark = cbuf.insts_mark();  // Get mark within main instrs section.

  MacroAssembler _masm(&cbuf);

  address base =
  __ start_a_stub(to_interp_stub_size()*2);
  if (base == NULL) return;  // CodeBuffer::expand failed.

  // Static stub relocation stores the instruction address of the call.
  __ relocate(static_stub_Relocation::spec(mark));

  __ set_metadata(NULL, as_Register(Matcher::inline_cache_reg_encode()));

  __ set_inst_mark();
  AddressLiteral addrlit(-1);
  __ JUMP(addrlit, G3, 0);

  __ delayed()->nop();

  // Update current stubs pointer and restore code_end.
  __ end_a_stub();
#else
  ShouldNotReachHere();
#endif
}

Example #5

File: compiledIC_aarch64.cpp Project: benbenolson/hotspot_9_mc

void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) {
  address stub = find_stub();
  guarantee(stub != NULL, "stub not found");

  if (TraceICs) {
    ResourceMark rm;
    tty->print_cr("CompiledStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
                  p2i(instruction_address()),
                  callee->name_and_sig_as_C_string());
  }

  // Creation also verifies the object.
  NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
#ifndef PRODUCT
  NativeGeneralJump* jump = nativeGeneralJump_at(method_holder->next_instruction_address());

  assert(method_holder->data() == 0 || method_holder->data() == (intptr_t)callee(),
         "a) MT-unsafe modification of inline cache");
  assert(method_holder->data() == 0 || jump->jump_destination() == entry,
         "b) MT-unsafe modification of inline cache");
#endif
  // Update stub.
  method_holder->set_data((intptr_t)callee());
  NativeGeneralJump::insert_unconditional(method_holder->next_instruction_address(), entry);
  ICache::invalidate_range(stub, to_interp_stub_size());
  // Update jump to call.
  set_destination_mt_safe(stub);
}