Mercurial > hg > truffle
annotate src/cpu/sparc/vm/icBuffer_sparc.cpp @ 7448:b735136e0d82
8004132: SerialGC: ValidateMarkSweep broken when running GCOld
Summary: Remove bit-rotten ValidateMarkSweep functionality and flag.
Reviewed-by: johnc, jmasa
Contributed-by: tamao <tao.mao@oracle.com>
author | johnc |
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date | Wed, 02 Jan 2013 11:32:41 -0800 |
parents | f0c2369fda5a |
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rev | line source |
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0 | 1 /* |
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6964458: Reimplement class meta-data storage to use native memory
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2 * Copyright (c) 1997, 2012, 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 #include "precompiled.hpp" |
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8003250: SPARC: move MacroAssembler into separate file
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26 #include "asm/macroAssembler.inline.hpp" |
1972 | 27 #include "code/icBuffer.hpp" |
28 #include "gc_interface/collectedHeap.inline.hpp" | |
29 #include "interpreter/bytecodes.hpp" | |
30 #include "memory/resourceArea.hpp" | |
31 #include "nativeInst_sparc.hpp" | |
32 #include "oops/oop.inline.hpp" | |
33 #include "oops/oop.inline2.hpp" | |
0 | 34 |
35 int InlineCacheBuffer::ic_stub_code_size() { | |
36 #ifdef _LP64 | |
37 if (TraceJumps) return 600 * wordSize; | |
38 return (NativeMovConstReg::instruction_size + // sethi;add | |
39 NativeJump::instruction_size + // sethi; jmp; delay slot | |
40 (1*BytesPerInstWord) + 1); // flush + 1 extra byte | |
41 #else | |
42 if (TraceJumps) return 300 * wordSize; | |
43 return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer | |
44 #endif | |
45 } | |
46 | |
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coleenp
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47 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, void* cached_value, address entry_point) { |
0 | 48 ResourceMark rm; |
49 CodeBuffer code(code_begin, ic_stub_code_size()); | |
50 MacroAssembler* masm = new MacroAssembler(&code); | |
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51 // note: even though the code contains an embedded metadata, we do not need reloc info |
0 | 52 // because |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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53 // (1) the metadata is old (i.e., doesn't matter for scavenges) |
0 | 54 // (2) these ICStubs are removed *before* a GC happens, so the roots disappear |
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55 AddressLiteral cached_value_addrlit((address)cached_value, relocInfo::none); |
727 | 56 // Force the set to generate the fixed sequence so next_instruction_address works |
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57 masm->patchable_set(cached_value_addrlit, G5_inline_cache_reg); |
0 | 58 assert(G3_scratch != G5_method, "Do not clobber the method oop in the transition stub"); |
59 assert(G3_scratch != G5_inline_cache_reg, "Do not clobber the inline cache register in the transition stub"); | |
727 | 60 AddressLiteral entry(entry_point); |
61 masm->JUMP(entry, G3_scratch, 0); | |
0 | 62 masm->delayed()->nop(); |
63 masm->flush(); | |
64 } | |
65 | |
66 | |
67 address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) { | |
68 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object | |
69 NativeJump* jump = nativeJump_at(move->next_instruction_address()); | |
70 return jump->jump_destination(); | |
71 } | |
72 | |
73 | |
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6964458: Reimplement class meta-data storage to use native memory
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74 void* InlineCacheBuffer::ic_buffer_cached_value(address code_begin) { |
0 | 75 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object |
76 NativeJump* jump = nativeJump_at(move->next_instruction_address()); | |
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77 void* o = (void*)move->data(); |
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coleenp
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78 return o; |
0 | 79 } |