Thu, 15 Aug 2013 20:04:10 -0400
8003424: Enable Class Data Sharing for CompressedOops
8016729: ObjectAlignmentInBytes=16 now forces the use of heap based compressed oops
8005933: The -Xshare:auto option is ignored for -server
Summary: Move klass metaspace above the heap and support CDS with compressed klass ptrs.
Reviewed-by: coleenp, kvn, mgerdin, tschatzl, stefank
duke@435 | 1 | /* |
drchase@5353 | 2 | * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef CPU_X86_VM_STUBROUTINES_X86_32_HPP |
stefank@2314 | 26 | #define CPU_X86_VM_STUBROUTINES_X86_32_HPP |
stefank@2314 | 27 | |
duke@435 | 28 | // This file holds the platform specific parts of the StubRoutines |
duke@435 | 29 | // definition. See stubRoutines.hpp for a description on how to |
duke@435 | 30 | // extend it. |
duke@435 | 31 | |
duke@435 | 32 | enum platform_dependent_constants { |
duke@435 | 33 | code_size1 = 9000, // simply increase if too small (assembler will crash if too small) |
duke@435 | 34 | code_size2 = 22000 // simply increase if too small (assembler will crash if too small) |
duke@435 | 35 | }; |
duke@435 | 36 | |
never@739 | 37 | class x86 { |
duke@435 | 38 | friend class StubGenerator; |
duke@435 | 39 | friend class VMStructs; |
duke@435 | 40 | |
duke@435 | 41 | private: |
duke@435 | 42 | static address _verify_fpu_cntrl_wrd_entry; |
duke@435 | 43 | |
duke@435 | 44 | public: |
duke@435 | 45 | static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } |
drchase@5353 | 46 | |
drchase@5353 | 47 | # include "stubRoutines_x86.hpp" |
kvn@4205 | 48 | |
duke@435 | 49 | }; |
duke@435 | 50 | |
twisti@2552 | 51 | static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; } |
stefank@2314 | 52 | |
stefank@2314 | 53 | #endif // CPU_X86_VM_STUBROUTINES_X86_32_HPP |