author | eosterlund |
Mon, 30 Apr 2018 21:17:37 +0200 | |
changeset 49929 | f38329fe8055 |
parent 49898 | 4745598b307f |
child 50418 | c35f0c531c6c |
permissions | -rw-r--r-- |
49748 | 1 |
/* |
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "gc/shared/barrierSetAssembler.hpp" |
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#include "interpreter/interp_masm.hpp" |
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49898
4745598b307f
8200235: Generalize jniFastGetField jobject/jweak resolve
eosterlund
parents:
49748
diff
changeset
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#include "runtime/jniHandles.hpp" |
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#define __ masm-> |
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void BarrierSetAssembler::load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, |
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Register dst, Address src, Register tmp1, Register tmp_thread) { |
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bool on_heap = (decorators & IN_HEAP) != 0; |
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bool on_root = (decorators & IN_ROOT) != 0; |
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bool oop_not_null = (decorators & OOP_NOT_NULL) != 0; |
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switch (type) { |
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case T_OBJECT: |
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case T_ARRAY: { |
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if (on_heap) { |
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#ifdef _LP64 |
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if (UseCompressedOops) { |
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__ movl(dst, src); |
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if (oop_not_null) { |
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__ decode_heap_oop_not_null(dst); |
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} else { |
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__ decode_heap_oop(dst); |
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} |
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} else |
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#endif |
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{ |
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__ movptr(dst, src); |
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} |
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} else { |
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assert(on_root, "why else?"); |
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__ movptr(dst, src); |
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} |
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break; |
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} |
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default: Unimplemented(); |
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} |
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} |
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void BarrierSetAssembler::store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, |
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Address dst, Register val, Register tmp1, Register tmp2) { |
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bool on_heap = (decorators & IN_HEAP) != 0; |
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bool on_root = (decorators & IN_ROOT) != 0; |
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bool oop_not_null = (decorators & OOP_NOT_NULL) != 0; |
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switch (type) { |
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case T_OBJECT: |
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case T_ARRAY: { |
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if (on_heap) { |
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if (val == noreg) { |
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assert(!oop_not_null, "inconsistent access"); |
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#ifdef _LP64 |
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if (UseCompressedOops) { |
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__ movl(dst, (int32_t)NULL_WORD); |
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} else { |
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__ movslq(dst, (int32_t)NULL_WORD); |
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} |
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#else |
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__ movl(dst, (int32_t)NULL_WORD); |
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#endif |
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} else { |
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#ifdef _LP64 |
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if (UseCompressedOops) { |
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assert(!dst.uses(val), "not enough registers"); |
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if (oop_not_null) { |
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__ encode_heap_oop_not_null(val); |
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} else { |
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__ encode_heap_oop(val); |
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} |
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__ movl(dst, val); |
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} else |
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#endif |
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{ |
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__ movptr(dst, val); |
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} |
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} |
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} else { |
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assert(on_root, "why else?"); |
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assert(val != noreg, "not supported"); |
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__ movptr(dst, val); |
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} |
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break; |
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} |
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default: Unimplemented(); |
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} |
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} |
|
49898
4745598b307f
8200235: Generalize jniFastGetField jobject/jweak resolve
eosterlund
parents:
49748
diff
changeset
|
112 |
|
49929
f38329fe8055
8202381: (Solaris) SIGBUS in # V [libjvm.so+0xcee494] jni_GetIntField+0x224
eosterlund
parents:
49898
diff
changeset
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void BarrierSetAssembler::try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env, |
f38329fe8055
8202381: (Solaris) SIGBUS in # V [libjvm.so+0xcee494] jni_GetIntField+0x224
eosterlund
parents:
49898
diff
changeset
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Register obj, Register tmp, Label& slowpath) { |
f38329fe8055
8202381: (Solaris) SIGBUS in # V [libjvm.so+0xcee494] jni_GetIntField+0x224
eosterlund
parents:
49898
diff
changeset
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__ clear_jweak_tag(obj); |
f38329fe8055
8202381: (Solaris) SIGBUS in # V [libjvm.so+0xcee494] jni_GetIntField+0x224
eosterlund
parents:
49898
diff
changeset
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__ movptr(obj, Address(obj, 0)); |
49898
4745598b307f
8200235: Generalize jniFastGetField jobject/jweak resolve
eosterlund
parents:
49748
diff
changeset
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} |