Mercurial > hg > truffle
annotate src/cpu/sparc/vm/icBuffer_sparc.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 6b2273dd6fa9 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
727
diff
changeset
|
2 * Copyright (c) 1997, 2009, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
727
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
727
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
727
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_icBuffer_sparc.cpp.incl" | |
| 27 | |
| 28 int InlineCacheBuffer::ic_stub_code_size() { | |
| 29 #ifdef _LP64 | |
| 30 if (TraceJumps) return 600 * wordSize; | |
| 31 return (NativeMovConstReg::instruction_size + // sethi;add | |
| 32 NativeJump::instruction_size + // sethi; jmp; delay slot | |
| 33 (1*BytesPerInstWord) + 1); // flush + 1 extra byte | |
| 34 #else | |
| 35 if (TraceJumps) return 300 * wordSize; | |
| 36 return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer | |
| 37 #endif | |
| 38 } | |
| 39 | |
| 40 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, oop cached_oop, address entry_point) { | |
| 41 ResourceMark rm; | |
| 42 CodeBuffer code(code_begin, ic_stub_code_size()); | |
| 43 MacroAssembler* masm = new MacroAssembler(&code); | |
| 44 // note: even though the code contains an embedded oop, we do not need reloc info | |
| 45 // because | |
| 46 // (1) the oop is old (i.e., doesn't matter for scavenges) | |
| 47 // (2) these ICStubs are removed *before* a GC happens, so the roots disappear | |
| 48 assert(cached_oop == NULL || cached_oop->is_perm(), "must be old oop"); | |
| 727 | 49 AddressLiteral cached_oop_addrlit(cached_oop, relocInfo::none); |
| 50 // Force the set to generate the fixed sequence so next_instruction_address works | |
| 51 masm->patchable_set(cached_oop_addrlit, G5_inline_cache_reg); | |
| 0 | 52 assert(G3_scratch != G5_method, "Do not clobber the method oop in the transition stub"); |
| 53 assert(G3_scratch != G5_inline_cache_reg, "Do not clobber the inline cache register in the transition stub"); | |
| 727 | 54 AddressLiteral entry(entry_point); |
| 55 masm->JUMP(entry, G3_scratch, 0); | |
| 0 | 56 masm->delayed()->nop(); |
| 57 masm->flush(); | |
| 58 } | |
| 59 | |
| 60 | |
| 61 address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) { | |
| 62 NativeMovConstReg* move = nativeMovConstReg_at(code_begin); // creation also verifies the object | |
| 63 NativeJump* jump = nativeJump_at(move->next_instruction_address()); | |
| 64 return jump->jump_destination(); | |
| 65 } | |
| 66 | |
| 67 | |
| 68 oop InlineCacheBuffer::ic_buffer_cached_oop(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 (oop)move->data(); | |
| 72 } |