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annotate src/os_cpu/linux_zero/vm/thread_linux_zero.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 1010 | 1 /* |
| 1972 | 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
| 1379 | 3 * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc. |
| 1010 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
|
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
| 1010 | 23 * |
| 24 */ | |
| 25 | |
| 1972 | 26 #ifndef OS_CPU_LINUX_ZERO_VM_THREAD_LINUX_ZERO_HPP |
| 27 #define OS_CPU_LINUX_ZERO_VM_THREAD_LINUX_ZERO_HPP | |
| 28 | |
| 1010 | 29 private: |
| 30 ZeroStack _zero_stack; | |
| 31 ZeroFrame* _top_zero_frame; | |
| 32 | |
| 33 void pd_initialize() { | |
| 34 _top_zero_frame = NULL; | |
| 35 } | |
| 36 | |
| 37 public: | |
| 38 ZeroStack *zero_stack() { | |
| 39 return &_zero_stack; | |
| 40 } | |
| 41 | |
| 42 public: | |
| 43 ZeroFrame *top_zero_frame() { | |
| 44 return _top_zero_frame; | |
| 45 } | |
| 46 void push_zero_frame(ZeroFrame *frame) { | |
| 47 *(ZeroFrame **) frame = _top_zero_frame; | |
| 48 _top_zero_frame = frame; | |
| 49 } | |
| 50 void pop_zero_frame() { | |
| 51 zero_stack()->set_sp((intptr_t *) _top_zero_frame + 1); | |
| 52 _top_zero_frame = *(ZeroFrame **) _top_zero_frame; | |
| 53 } | |
| 54 | |
| 55 public: | |
| 56 static ByteSize zero_stack_offset() { | |
| 57 return byte_offset_of(JavaThread, _zero_stack); | |
| 58 } | |
| 59 static ByteSize top_zero_frame_offset() { | |
| 60 return byte_offset_of(JavaThread, _top_zero_frame); | |
| 61 } | |
| 62 | |
| 63 public: | |
| 64 void record_base_of_stack_pointer() { | |
| 65 assert(top_zero_frame() == NULL, "junk on stack prior to Java call"); | |
| 66 } | |
| 67 void set_base_of_stack_pointer(intptr_t* base_sp) { | |
| 68 assert(base_sp == NULL, "should be"); | |
| 69 assert(top_zero_frame() == NULL, "junk on stack after Java call"); | |
| 70 } | |
| 71 | |
| 72 public: | |
| 73 void set_last_Java_frame() { | |
| 1505 | 74 set_last_Java_frame(top_zero_frame(), zero_stack()->sp()); |
| 1010 | 75 } |
| 76 void reset_last_Java_frame() { | |
| 1505 | 77 frame_anchor()->zap(); |
| 78 } | |
| 79 void set_last_Java_frame(ZeroFrame* fp, intptr_t* sp) { | |
| 80 frame_anchor()->set(sp, NULL, fp); | |
| 1379 | 81 } |
| 1505 | 82 |
| 83 public: | |
| 84 ZeroFrame* last_Java_fp() { | |
| 85 return frame_anchor()->last_Java_fp(); | |
| 1010 | 86 } |
| 87 | |
| 88 private: | |
| 89 frame pd_last_frame() { | |
| 90 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
| 1505 | 91 return frame(last_Java_fp(), last_Java_sp()); |
| 1010 | 92 } |
| 93 | |
| 94 public: | |
| 1512 | 95 static ByteSize last_Java_fp_offset() { |
| 96 return byte_offset_of(JavaThread, _anchor) + | |
| 97 JavaFrameAnchor::last_Java_fp_offset(); | |
| 98 } | |
| 99 | |
| 100 public: | |
| 1010 | 101 // Check for pending suspend requests and pending asynchronous |
| 102 // exceptions. There are separate accessors for these, but | |
| 103 // _suspend_flags is volatile so using them would be unsafe. | |
| 104 bool has_special_condition_for_native_trans() { | |
| 105 return _suspend_flags != 0; | |
| 106 } | |
| 107 | |
| 108 public: | |
| 109 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, | |
| 110 void* ucontext, | |
| 111 bool isInJava) { | |
| 112 ShouldNotCallThis(); | |
| 113 } | |
| 114 | |
| 115 // These routines are only used on cpu architectures that | |
| 116 // have separate register stacks (Itanium). | |
| 117 static bool register_stack_overflow() { return false; } | |
| 118 static void enable_register_stack_guard() {} | |
| 119 static void disable_register_stack_guard() {} | |
| 1972 | 120 |
| 121 #endif // OS_CPU_LINUX_ZERO_VM_THREAD_LINUX_ZERO_HPP |