Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/stubRoutines_sparc.hpp @ 1846:d55217dc206f
6829194: JSR 292 needs to support compressed oops
Reviewed-by: kvn, jrose
| author | twisti |
|---|---|
| date | Mon, 11 Oct 2010 04:18:58 -0700 |
| parents | d257356e35f0 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1299
diff
changeset
|
2 * Copyright (c) 1997, 2010, 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:
1299
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1299
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:
1299
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // This file holds the platform specific parts of the StubRoutines | |
| 26 // definition. See stubRoutines.hpp for a description on how to | |
| 27 // extend it. | |
| 28 | |
| 29 | |
| 30 // So unfortunately c2 will call with a pc from a frame object | |
| 31 // (already adjusted) and a raw pc (unadjusted), so we need to check both. | |
| 32 // It didn't use to be like this before adapter removal. | |
| 33 static bool returns_to_call_stub(address return_pc) { | |
| 34 return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) || | |
| 35 (return_pc == _call_stub_return_address ); | |
| 36 } | |
| 37 | |
| 38 enum /* platform_dependent_constants */ { | |
| 39 // %%%%%%%% May be able to shrink this a lot | |
|
1299
9eba43136cb5
6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents:
0
diff
changeset
|
40 code_size1 = 20000, // simply increase if too small (assembler will crash if too small) |
|
9eba43136cb5
6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents:
0
diff
changeset
|
41 code_size2 = 20000 // simply increase if too small (assembler will crash if too small) |
|
9eba43136cb5
6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents:
0
diff
changeset
|
42 }; |
|
9eba43136cb5
6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents:
0
diff
changeset
|
43 |
|
9eba43136cb5
6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents:
0
diff
changeset
|
44 // MethodHandles adapters |
|
9eba43136cb5
6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents:
0
diff
changeset
|
45 enum method_handles_platform_dependent_constants { |
| 1846 | 46 method_handles_adapters_code_size = 15000 |
| 0 | 47 }; |
| 48 | |
| 49 class Sparc { | |
| 50 friend class StubGenerator; | |
| 51 | |
| 52 public: | |
| 53 enum { nof_instance_allocators = 10 }; | |
| 54 | |
| 55 // allocator lock values | |
| 56 enum { | |
| 57 unlocked = 0, | |
| 58 locked = 1 | |
| 59 }; | |
| 60 | |
| 61 enum { | |
| 62 v8_oop_lock_ignore_bits = 2, | |
| 63 v8_oop_lock_bits = 4, | |
| 64 nof_v8_oop_lock_cache_entries = 1 << (v8_oop_lock_bits+v8_oop_lock_ignore_bits), | |
| 65 v8_oop_lock_mask = right_n_bits(v8_oop_lock_bits), | |
| 66 v8_oop_lock_mask_in_place = v8_oop_lock_mask << v8_oop_lock_ignore_bits | |
| 67 }; | |
| 68 | |
| 69 static int _v8_oop_lock_cache[nof_v8_oop_lock_cache_entries]; | |
| 70 | |
| 71 private: | |
| 72 static address _test_stop_entry; | |
| 73 static address _stop_subroutine_entry; | |
| 74 static address _flush_callers_register_windows_entry; | |
| 75 | |
| 76 static int _atomic_memory_operation_lock; | |
| 77 | |
| 78 static address _partial_subtype_check; | |
| 79 | |
| 80 public: | |
| 81 // %%% global lock for everyone who needs to use atomic_compare_and_exchange | |
| 82 // %%% or atomic_increment -- should probably use more locks for more | |
| 83 // %%% scalability-- for instance one for each eden space or group of | |
| 84 | |
| 85 // address of the lock for atomic_compare_and_exchange | |
| 86 static int* atomic_memory_operation_lock_addr() { return &_atomic_memory_operation_lock; } | |
| 87 | |
| 88 // accessor and mutator for _atomic_memory_operation_lock | |
| 89 static int atomic_memory_operation_lock() { return _atomic_memory_operation_lock; } | |
| 90 static void set_atomic_memory_operation_lock(int value) { _atomic_memory_operation_lock = value; } | |
| 91 | |
| 92 // test assembler stop routine by setting registers | |
| 93 static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); } | |
| 94 | |
| 95 // a subroutine for debugging assembler code | |
| 96 static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; } | |
| 97 | |
| 98 // flushes (all but current) register window | |
| 99 static intptr_t* (*flush_callers_register_windows_func())() { return CAST_TO_FN_PTR(intptr_t* (*)(void), _flush_callers_register_windows_entry); } | |
| 100 | |
| 101 static address partial_subtype_check() { return _partial_subtype_check; } | |
| 102 }; |