src/os_cpu/linux_x86/vm/linux_x86_64.ad

*** 1,7 ****
  //
! // Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
  // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  //
  // This code is free software; you can redistribute it and/or modify it
  // under the terms of the GNU General Public License version 2 only, as
  // published by the Free Software Foundation.
--- 1,7 ----
  //
! // Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
  // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  //
  // This code is free software; you can redistribute it and/or modify it
  // under the terms of the GNU General Public License version 2 only, as
  // published by the Free Software Foundation.
*** 53,64 ****
    // code in the enc_class source block.  Emit functions will live in the
    // main source block for now.  In future, we can generalize this by
    // adding a syntax that specifies the sizes of fields in an order,
    // so that the adlc can build the emit functions automagically
  
!   enc_class Java_To_Runtime(method meth)
!   %{
      // No relocation needed
  
      // movq r10, <meth>
      emit_opcode(cbuf, Assembler::REX_WB);
      emit_opcode(cbuf, 0xB8 | (R10_enc - 8));
--- 53,63 ----
    // code in the enc_class source block.  Emit functions will live in the
    // main source block for now.  In future, we can generalize this by
    // adding a syntax that specifies the sizes of fields in an order,
    // so that the adlc can build the emit functions automagically
  
!   enc_class Java_To_Runtime(method meth) %{
      // No relocation needed
  
      // movq r10, <meth>
      emit_opcode(cbuf, Assembler::REX_WB);
      emit_opcode(cbuf, 0xB8 | (R10_enc - 8));
*** 68,174 ****
      emit_opcode(cbuf, Assembler::REX_B);
      emit_opcode(cbuf, 0xFF);
      emit_opcode(cbuf, 0xD0 | (R10_enc - 8));
    %}
  
-   enc_class linux_breakpoint
-   %{
-     MacroAssembler* masm = new MacroAssembler(&cbuf);
-     masm->call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
-   %}
- 
-   enc_class call_epilog
-   %{
-     if (VerifyStackAtCalls) {
-       // Check that stack depth is unchanged: find majik cookie on stack
-       int framesize =
-         ra_->reg2offset_unchecked(OptoReg::add(ra_->_matcher._old_SP, -3*VMRegImpl::slots_per_word));
-       if (framesize) {
-         if (framesize < 0x80) {
-           emit_opcode(cbuf, Assembler::REX_W);
-           emit_opcode(cbuf, 0x81); // cmpq [rsp+0],0xbadb1ood
-           emit_d8(cbuf, 0x7C);
-           emit_d8(cbuf, 0x24);
-           emit_d8(cbuf, framesize); // Find majik cookie from ESP
-           emit_d32(cbuf, 0xbadb100d);
-         } else {
-           emit_opcode(cbuf, Assembler::REX_W);
-           emit_opcode(cbuf, 0x81); // cmpq [rsp+0],0xbadb1ood
-           emit_d8(cbuf, 0xBC);
-           emit_d8(cbuf, 0x24);
-           emit_d32(cbuf, framesize); // Find majik cookie from ESP
-           emit_d32(cbuf, 0xbadb100d);
-         }
-       }
-       // jmp EQ around INT3
-       // QQQ TODO
-       const int jump_around = 5; // size of call to breakpoint, 1 for CC
-       emit_opcode(cbuf, 0x74);
-       emit_d8(cbuf, jump_around);
-       // QQQ temporary
-       emit_break(cbuf);
-       // Die if stack mismatch
-       // emit_opcode(cbuf,0xCC);
-     }
-   %}
- 
  %}
  
- // INSTRUCTIONS -- Platform dependent
  
- //----------OS and Locking Instructions----------------------------------------
- 
- // This name is KNOWN by the ADLC and cannot be changed.
- // The ADLC forces a 'TypeRawPtr::BOTTOM' output type
- // for this guy.
- instruct tlsLoadP(r15_RegP dst)
- %{
-   match(Set dst (ThreadLocal));
-   effect(DEF dst);
- 
-   size(0);
-   format %{ "# TLS is in R15" %}
-   ins_encode( /*empty encoding*/ );
-   ins_pipe(ialu_reg_reg);
- %}
- 
- // Die now
- instruct ShouldNotReachHere()
- %{
-   match(Halt);
- 
-   // Use the following format syntax
-   format %{ "int3\t# ShouldNotReachHere" %}
-   // QQQ TODO for now call breakpoint
-   // opcode(0xCC);
-   // ins_encode(Opc);
-   ins_encode(linux_breakpoint);
-   ins_pipe(pipe_slow);
- %}
- 
- 
  // Platform dependent source
  
! source
! %{
  
  int MachCallRuntimeNode::ret_addr_offset() {
    return 13; // movq r10,#addr; callq (r10)
  }
  
  // emit an interrupt that is caught by the debugger
! void emit_break(CodeBuffer& cbuf) {
!   // Debugger doesn't really catch this but best we can do so far QQQ
!   MacroAssembler* masm = new MacroAssembler(&cbuf);
!   masm->call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
  }
  
- void MachBreakpointNode::emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const {
-   emit_break(cbuf);
- }
- 
- uint MachBreakpointNode::size(PhaseRegAlloc* ra_) const {
-   // distance could be far and requires load and call through register
-   return MachNode::size(ra_);
- }
- 
  %}
--- 67,91 ----
      emit_opcode(cbuf, Assembler::REX_B);
      emit_opcode(cbuf, 0xFF);
      emit_opcode(cbuf, 0xD0 | (R10_enc - 8));
    %}
  
  %}
  
  
  // Platform dependent source
  
! source %{
  
  int MachCallRuntimeNode::ret_addr_offset() {
    return 13; // movq r10,#addr; callq (r10)
  }
  
  // emit an interrupt that is caught by the debugger
! void emit_break(MacroAssembler &_masm) {
!   // __ emit_byte(0xCC);
!   // TODO for now call breakpoint instead of INT3.
!   // Debugger doesn't really catch this but best we can do so far QQQ.
!   __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
  }
  
  %}