Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/icBuffer_sparc.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | f95d63e2154a |
| children | f0c2369fda5a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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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" |
| 26 #include "asm/assembler.hpp" | |
| 27 #include "assembler_sparc.inline.hpp" | |
| 28 #include "code/icBuffer.hpp" | |
| 29 #include "gc_interface/collectedHeap.inline.hpp" | |
| 30 #include "interpreter/bytecodes.hpp" | |
| 31 #include "memory/resourceArea.hpp" | |
| 32 #include "nativeInst_sparc.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "oops/oop.inline2.hpp" | |
| 0 | 35 |
| 36 int InlineCacheBuffer::ic_stub_code_size() { | |
| 37 #ifdef _LP64 | |
| 38 if (TraceJumps) return 600 * wordSize; | |
| 39 return (NativeMovConstReg::instruction_size + // sethi;add | |
| 40 NativeJump::instruction_size + // sethi; jmp; delay slot | |
| 41 (1*BytesPerInstWord) + 1); // flush + 1 extra byte | |
| 42 #else | |
| 43 if (TraceJumps) return 300 * wordSize; | |
| 44 return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer | |
| 45 #endif | |
| 46 } | |
| 47 | |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
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48 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, void* cached_value, address entry_point) { |
| 0 | 49 ResourceMark rm; |
| 50 CodeBuffer code(code_begin, ic_stub_code_size()); | |
| 51 MacroAssembler* masm = new MacroAssembler(&code); | |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
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52 // note: even though the code contains an embedded metadata, we do not need reloc info |
| 0 | 53 // because |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
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54 // (1) the metadata is old (i.e., doesn't matter for scavenges) |
| 0 | 55 // (2) these ICStubs are removed *before* a GC happens, so the roots disappear |
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56 AddressLiteral cached_value_addrlit((address)cached_value, relocInfo::none); |
| 727 | 57 // Force the set to generate the fixed sequence so next_instruction_address works |
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coleenp
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58 masm->patchable_set(cached_value_addrlit, G5_inline_cache_reg); |
| 0 | 59 assert(G3_scratch != G5_method, "Do not clobber the method oop in the transition stub"); |
| 60 assert(G3_scratch != G5_inline_cache_reg, "Do not clobber the inline cache register in the transition stub"); | |
| 727 | 61 AddressLiteral entry(entry_point); |
| 62 masm->JUMP(entry, G3_scratch, 0); | |
| 0 | 63 masm->delayed()->nop(); |
| 64 masm->flush(); | |
| 65 } | |
| 66 | |
| 67 | |
| 68 address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) { | |
| 69 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object | |
| 70 NativeJump* jump = nativeJump_at(move->next_instruction_address()); | |
| 71 return jump->jump_destination(); | |
| 72 } | |
| 73 | |
| 74 | |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
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75 void* InlineCacheBuffer::ic_buffer_cached_value(address code_begin) { |
| 0 | 76 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object |
| 77 NativeJump* jump = nativeJump_at(move->next_instruction_address()); | |
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coleenp
parents:
1972
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78 void* o = (void*)move->data(); |
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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1972
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79 return o; |
| 0 | 80 } |