Tue, 13 Oct 2009 12:04:21 -0700
6890308: integrate zero assembler hotspot changes
Reviewed-by: never
Contributed-by: gbenson@redhat.com
never@1445 | 1 | /* |
never@1445 | 2 | * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
never@1445 | 3 | * Copyright 2007, 2008, 2009 Red Hat, Inc. |
never@1445 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
never@1445 | 5 | * |
never@1445 | 6 | * This code is free software; you can redistribute it and/or modify it |
never@1445 | 7 | * under the terms of the GNU General Public License version 2 only, as |
never@1445 | 8 | * published by the Free Software Foundation. |
never@1445 | 9 | * |
never@1445 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
never@1445 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
never@1445 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
never@1445 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
never@1445 | 14 | * accompanied this code). |
never@1445 | 15 | * |
never@1445 | 16 | * You should have received a copy of the GNU General Public License version |
never@1445 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
never@1445 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
never@1445 | 19 | * |
never@1445 | 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
never@1445 | 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
never@1445 | 22 | * have any questions. |
never@1445 | 23 | * |
never@1445 | 24 | */ |
never@1445 | 25 | |
never@1445 | 26 | // This file holds the platform specific parts of the StubRoutines |
never@1445 | 27 | // definition. See stubRoutines.hpp for a description on how to |
never@1445 | 28 | // extend it. |
never@1445 | 29 | |
never@1445 | 30 | public: |
never@1445 | 31 | static address call_stub_return_pc() { |
never@1445 | 32 | return (address) -1; |
never@1445 | 33 | } |
never@1445 | 34 | |
never@1445 | 35 | static bool returns_to_call_stub(address return_pc) { |
never@1445 | 36 | return return_pc == call_stub_return_pc(); |
never@1445 | 37 | } |
never@1445 | 38 | |
never@1445 | 39 | enum platform_dependent_constants { |
never@1445 | 40 | code_size1 = 0, // The assembler will fail with a guarantee |
never@1445 | 41 | code_size2 = 0 // if these are too small. Simply increase |
never@1445 | 42 | }; // them if that happens. |
never@1445 | 43 | |
never@1445 | 44 | #ifdef IA32 |
never@1445 | 45 | class x86 { |
never@1445 | 46 | friend class VMStructs; |
never@1445 | 47 | |
never@1445 | 48 | private: |
never@1445 | 49 | static address _call_stub_compiled_return; |
never@1445 | 50 | }; |
never@1445 | 51 | #endif // IA32 |