1 /*
   2  * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2008, 2009, 2010 Red Hat, Inc.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #include "incls/_precompiled.incl"
  27 #include "incls/_sharkStack.cpp.incl"




  28 
  29 using namespace llvm;
  30 
  31 void SharkStack::initialize(Value* method) {
  32   bool setup_sp_and_method = (method != NULL);
  33 
  34   int locals_words  = max_locals();
  35   int extra_locals  = locals_words - arg_size();
  36   int header_words  = SharkFrame::header_words;
  37   int monitor_words = max_monitors()*frame::interpreter_frame_monitor_size();
  38   int stack_words   = max_stack();
  39   int frame_words   = header_words + monitor_words + stack_words;
  40 
  41   _extended_frame_size = frame_words + locals_words;
  42 
  43   // Update the stack pointer
  44   Value *stack_pointer = builder()->CreateSub(
  45     CreateLoadStackPointer(),
  46     LLVMValue::intptr_constant((frame_words + extra_locals) * wordSize));
  47   CreateStackOverflowCheck(stack_pointer);

   1 /*
   2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2008, 2009, 2010 Red Hat, Inc.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #include "precompiled.hpp"
  27 #include "shark/llvmHeaders.hpp"
  28 #include "shark/sharkFunction.hpp"
  29 #include "shark/sharkNativeWrapper.hpp"
  30 #include "shark/sharkStack.hpp"
  31 #include "shark/sharkType.hpp"
  32 
  33 using namespace llvm;
  34 
  35 void SharkStack::initialize(Value* method) {
  36   bool setup_sp_and_method = (method != NULL);
  37 
  38   int locals_words  = max_locals();
  39   int extra_locals  = locals_words - arg_size();
  40   int header_words  = SharkFrame::header_words;
  41   int monitor_words = max_monitors()*frame::interpreter_frame_monitor_size();
  42   int stack_words   = max_stack();
  43   int frame_words   = header_words + monitor_words + stack_words;
  44 
  45   _extended_frame_size = frame_words + locals_words;
  46 
  47   // Update the stack pointer
  48   Value *stack_pointer = builder()->CreateSub(
  49     CreateLoadStackPointer(),
  50     LLVMValue::intptr_constant((frame_words + extra_locals) * wordSize));
  51   CreateStackOverflowCheck(stack_pointer);