Mon, 03 Jan 2011 14:09:11 -0500
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
Summary: enhance the error reporting mechanism to help user to fix the problem rather than making it look like a VM error.
Reviewed-by: kvn, kamg
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP |
stefank@2314 | 26 | #define SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "gc_implementation/shared/gcUtil.hpp" |
stefank@2314 | 29 | #include "runtime/os.hpp" |
stefank@2314 | 30 | #include "utilities/top.hpp" |
stefank@2314 | 31 | |
duke@435 | 32 | // Interface for thread local storage |
duke@435 | 33 | |
duke@435 | 34 | // Fast variant of ThreadLocalStorage::get_thread_slow |
duke@435 | 35 | extern "C" Thread* get_thread(); |
duke@435 | 36 | |
duke@435 | 37 | // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86 |
duke@435 | 38 | extern "C" uintptr_t _raw_thread_id(); |
duke@435 | 39 | |
duke@435 | 40 | class ThreadLocalStorage : AllStatic { |
duke@435 | 41 | public: |
duke@435 | 42 | static void set_thread(Thread* thread); |
duke@435 | 43 | static Thread* get_thread_slow(); |
duke@435 | 44 | static void invalidate_all() { pd_invalidate_all(); } |
duke@435 | 45 | |
duke@435 | 46 | // Machine dependent stuff |
stefank@2314 | 47 | #ifdef TARGET_OS_ARCH_linux_x86 |
stefank@2314 | 48 | # include "threadLS_linux_x86.hpp" |
stefank@2314 | 49 | #endif |
stefank@2314 | 50 | #ifdef TARGET_OS_ARCH_linux_sparc |
stefank@2314 | 51 | # include "threadLS_linux_sparc.hpp" |
stefank@2314 | 52 | #endif |
stefank@2314 | 53 | #ifdef TARGET_OS_ARCH_linux_zero |
stefank@2314 | 54 | # include "threadLS_linux_zero.hpp" |
stefank@2314 | 55 | #endif |
stefank@2314 | 56 | #ifdef TARGET_OS_ARCH_solaris_x86 |
stefank@2314 | 57 | # include "threadLS_solaris_x86.hpp" |
stefank@2314 | 58 | #endif |
stefank@2314 | 59 | #ifdef TARGET_OS_ARCH_solaris_sparc |
stefank@2314 | 60 | # include "threadLS_solaris_sparc.hpp" |
stefank@2314 | 61 | #endif |
stefank@2314 | 62 | #ifdef TARGET_OS_ARCH_windows_x86 |
stefank@2314 | 63 | # include "threadLS_windows_x86.hpp" |
stefank@2314 | 64 | #endif |
stefank@2314 | 65 | |
duke@435 | 66 | |
duke@435 | 67 | public: |
duke@435 | 68 | // Accessor |
duke@435 | 69 | static inline int thread_index() { return _thread_index; } |
duke@435 | 70 | static inline void set_thread_index(int index) { _thread_index = index; } |
duke@435 | 71 | |
duke@435 | 72 | // Initialization |
duke@435 | 73 | // Called explicitly from VMThread::activate_system instead of init_globals. |
duke@435 | 74 | static void init(); |
kamg@677 | 75 | static bool is_initialized(); |
duke@435 | 76 | |
duke@435 | 77 | private: |
duke@435 | 78 | static int _thread_index; |
duke@435 | 79 | |
duke@435 | 80 | static void generate_code_for_get_thread(); |
duke@435 | 81 | |
duke@435 | 82 | // Processor dependent parts of set_thread and initialization |
duke@435 | 83 | static void pd_set_thread(Thread* thread); |
duke@435 | 84 | static void pd_init(); |
duke@435 | 85 | // Invalidate any thread cacheing or optimization schemes. |
duke@435 | 86 | static void pd_invalidate_all(); |
duke@435 | 87 | |
duke@435 | 88 | }; |
stefank@2314 | 89 | |
stefank@2314 | 90 | #endif // SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP |