Mercurial > hg > truffle
annotate src/cpu/ppc/vm/icBuffer_ppc.cpp @ 17801:2444afebe07b
8035392: cppInterpreter: fix message of NPE
Reviewed-by: kvn
Contributed-by: axel.siebenborn@sap.com
author | goetz |
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date | Thu, 20 Feb 2014 10:48:57 +0100 |
parents | ec28f9c041ff |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 2012, 2013 SAP AG. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #include "precompiled.hpp" |
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27 #include "asm/assembler.hpp" |
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28 #include "assembler_ppc.inline.hpp" |
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29 #include "code/icBuffer.hpp" |
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30 #include "gc_interface/collectedHeap.inline.hpp" |
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31 #include "interpreter/bytecodes.hpp" |
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32 #include "memory/resourceArea.hpp" |
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33 #include "nativeInst_ppc.hpp" |
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34 #include "oops/oop.inline.hpp" |
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35 #include "oops/oop.inline2.hpp" |
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36 |
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37 #define __ masm. |
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38 |
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39 int InlineCacheBuffer::ic_stub_code_size() { |
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40 return MacroAssembler::load_const_size + MacroAssembler::b64_patchable_size; |
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41 } |
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42 |
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43 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, void* cached_value, address entry_point) { |
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44 ResourceMark rm; |
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45 CodeBuffer code(code_begin, ic_stub_code_size()); |
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46 MacroAssembler masm(&code); |
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47 // Note: even though the code contains an embedded metadata, we do not need reloc info |
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48 // because |
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49 // (1) the metadata is old (i.e., doesn't matter for scavenges) |
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50 // (2) these ICStubs are removed *before* a GC happens, so the roots disappear. |
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51 |
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52 // Load the oop ... |
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53 __ load_const(R19_method, (address) cached_value, R0); |
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54 // ... and jump to entry point. |
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55 __ b64_patchable((address) entry_point, relocInfo::none); |
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56 |
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57 __ flush(); |
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58 } |
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59 |
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60 address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) { |
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61 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object |
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62 NativeJump* jump = nativeJump_at(move->next_instruction_address()); |
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63 return jump->jump_destination(); |
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64 } |
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65 |
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66 void* InlineCacheBuffer::ic_buffer_cached_value(address code_begin) { |
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67 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object |
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68 void* o = (void*)move->data(); |
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69 return o; |
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70 } |
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71 |