1 /*
   2  * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "incls/_precompiled.incl"
  26 #include "incls/_icBuffer_sparc.cpp.incl"








  27 
  28 int InlineCacheBuffer::ic_stub_code_size() {
  29 #ifdef _LP64
  30   if (TraceJumps) return 600 * wordSize;
  31   return (NativeMovConstReg::instruction_size +  // sethi;add
  32           NativeJump::instruction_size +          // sethi; jmp; delay slot
  33           (1*BytesPerInstWord) + 1);            // flush + 1 extra byte
  34 #else
  35   if (TraceJumps) return 300 * wordSize;
  36   return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer
  37 #endif
  38 }
  39 
  40 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, oop cached_oop, address entry_point) {
  41   ResourceMark rm;
  42   CodeBuffer     code(code_begin, ic_stub_code_size());
  43   MacroAssembler* masm            = new MacroAssembler(&code);
  44   // note: even though the code contains an embedded oop, we do not need reloc info
  45   // because
  46   // (1) the oop is old (i.e., doesn't matter for scavenges)

   1 /*
   2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "asm/assembler.hpp"
  27 #include "assembler_sparc.inline.hpp"
  28 #include "code/icBuffer.hpp"
  29 #include "gc_interface/collectedHeap.inline.hpp"
  30 #include "interpreter/bytecodes.hpp"
  31 #include "memory/resourceArea.hpp"
  32 #include "nativeInst_sparc.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "oops/oop.inline2.hpp"
  35 
  36 int InlineCacheBuffer::ic_stub_code_size() {
  37 #ifdef _LP64
  38   if (TraceJumps) return 600 * wordSize;
  39   return (NativeMovConstReg::instruction_size +  // sethi;add
  40           NativeJump::instruction_size +          // sethi; jmp; delay slot
  41           (1*BytesPerInstWord) + 1);            // flush + 1 extra byte
  42 #else
  43   if (TraceJumps) return 300 * wordSize;
  44   return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer
  45 #endif
  46 }
  47 
  48 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, oop cached_oop, address entry_point) {
  49   ResourceMark rm;
  50   CodeBuffer     code(code_begin, ic_stub_code_size());
  51   MacroAssembler* masm            = new MacroAssembler(&code);
  52   // note: even though the code contains an embedded oop, we do not need reloc info
  53   // because
  54   // (1) the oop is old (i.e., doesn't matter for scavenges)