Mercurial > hg > truffle
annotate src/cpu/sparc/vm/stubRoutines_sparc.hpp @ 20804:7848fc12602b
Merge with jdk8u40-b25
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Tue, 07 Apr 2015 14:58:49 +0200 |
| parents | 52b4284cb496 b20a35eae442 |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef CPU_SPARC_VM_STUBROUTINES_SPARC_HPP |
| 26 #define CPU_SPARC_VM_STUBROUTINES_SPARC_HPP | |
| 27 | |
| 0 | 28 // This file holds the platform specific parts of the StubRoutines |
| 29 // definition. See stubRoutines.hpp for a description on how to | |
| 30 // extend it. | |
| 31 | |
| 32 | |
| 33 // So unfortunately c2 will call with a pc from a frame object | |
| 34 // (already adjusted) and a raw pc (unadjusted), so we need to check both. | |
| 35 // It didn't use to be like this before adapter removal. | |
| 36 static bool returns_to_call_stub(address return_pc) { | |
| 37 return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) || | |
| 38 (return_pc == _call_stub_return_address ); | |
| 39 } | |
| 40 | |
| 41 enum /* platform_dependent_constants */ { | |
| 42 // %%%%%%%% May be able to shrink this a lot | |
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43 code_size1 = 20000, // simply increase if too small (assembler will crash if too small) |
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44 code_size2 = 23000 // simply increase if too small (assembler will crash if too small) |
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45 }; |
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46 |
| 0 | 47 class Sparc { |
| 48 friend class StubGenerator; | |
| 49 | |
| 50 private: | |
| 51 static address _test_stop_entry; | |
| 52 static address _stop_subroutine_entry; | |
| 53 static address _flush_callers_register_windows_entry; | |
| 54 | |
| 55 static address _partial_subtype_check; | |
| 56 | |
| 57 public: | |
| 58 // test assembler stop routine by setting registers | |
| 59 static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); } | |
| 60 | |
| 61 // a subroutine for debugging assembler code | |
| 62 static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; } | |
| 63 | |
| 64 // flushes (all but current) register window | |
| 65 static intptr_t* (*flush_callers_register_windows_func())() { return CAST_TO_FN_PTR(intptr_t* (*)(void), _flush_callers_register_windows_entry); } | |
| 66 | |
| 67 static address partial_subtype_check() { return _partial_subtype_check; } | |
| 68 }; | |
| 1972 | 69 |
| 70 #endif // CPU_SPARC_VM_STUBROUTINES_SPARC_HPP |