author | coleenp |
Thu, 10 Jan 2019 15:13:51 -0500 | |
changeset 53244 | 9807daeb47c4 |
parent 49480 | d7df2dd501ce |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008, 2019, 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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#ifndef OS_CPU_LINUX_ARM_THREAD_LINUX_ARM_HPP |
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#define OS_CPU_LINUX_ARM_THREAD_LINUX_ARM_HPP |
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private: |
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// The following thread-local variables replicate corresponding global variables. |
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// They are used for a quick access from compiled code via Rthread register. |
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address _heap_top_addr; |
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address _heap_lock_addr; |
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address _card_table_base; |
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void pd_initialize() { |
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_anchor.clear(); |
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_in_top_frame_unsafe_section = NULL; |
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} |
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frame pd_last_frame(); |
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public: |
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intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); } |
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void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); } |
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void set_last_Java_pc(address pc) { _anchor.set_last_Java_pc(pc); } |
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static ByteSize last_Java_fp_offset() { |
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return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset(); |
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} |
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void set_base_of_stack_pointer(intptr_t* base_sp) { |
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// Nothing to do |
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} |
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intptr_t* base_of_stack_pointer() { |
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return NULL; |
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} |
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void record_base_of_stack_pointer() { |
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// Nothing to do |
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} |
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static ByteSize heap_top_addr_offset() { return byte_offset_of(JavaThread, _heap_top_addr); } |
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static ByteSize card_table_base_offset() { return byte_offset_of(JavaThread, _card_table_base); } |
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private: |
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// Set to "this" if pd_get_top_frame should ignore this thread for now. |
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JavaThread *_in_top_frame_unsafe_section; |
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public: |
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static ByteSize in_top_frame_unsafe_section_offset() { return byte_offset_of(JavaThread, _in_top_frame_unsafe_section); } |
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bool in_top_frame_unsafe_section() { return _in_top_frame_unsafe_section == this; } |
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bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, bool isInJava); |
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bool pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava); |
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private: |
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bool pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava); |
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public: |
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// These routines are only used on cpu architectures that |
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// have separate register stacks (Itanium). |
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static bool register_stack_overflow() { return false; } |
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static void enable_register_stack_guard() {} |
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static void disable_register_stack_guard() {} |
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9807daeb47c4
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coleenp
parents:
49480
diff
changeset
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#endif // OS_CPU_LINUX_ARM_THREAD_LINUX_ARM_HPP |