Mercurial > hg > truffle
annotate src/os/windows/vm/jvm_windows.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children | f95d63e2154a |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1998, 2007, 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_jvm_windows.cpp.incl" | |
| 27 | |
| 28 #include <signal.h> | |
| 29 | |
| 30 JVM_LEAF(void*, JVM_GetThreadInterruptEvent()) | |
| 31 return Thread::current()->osthread()->interrupt_event(); | |
| 32 JVM_END | |
| 33 | |
| 34 // sun.misc.Signal /////////////////////////////////////////////////////////// | |
| 35 // Signal code is mostly copied from classic vm, signals_md.c 1.4 98/08/23 | |
| 36 /* | |
| 37 * This function is included primarily as a debugging aid. If Java is | |
| 38 * running in a console window, then pressing <CTRL-BREAK> will cause | |
| 39 * the current state of all active threads and monitors to be written | |
| 40 * to the console window. | |
| 41 */ | |
| 42 | |
| 43 JVM_ENTRY_NO_ENV(void*, JVM_RegisterSignal(jint sig, void* handler)) | |
| 44 // Copied from classic vm | |
| 45 // signals_md.c 1.4 98/08/23 | |
| 46 void* newHandler = handler == (void *)2 | |
| 47 ? os::user_handler() | |
| 48 : handler; | |
| 49 switch (sig) { | |
| 50 case SIGFPE: | |
| 51 return (void *)-1; /* already used by VM */ | |
| 52 case SIGBREAK: | |
| 53 if (!ReduceSignalUsage) return (void *)-1; | |
| 54 | |
| 55 /* The following signals are used for Shutdown Hooks support. However, if | |
| 56 ReduceSignalUsage (-Xrs) is set, Shutdown Hooks must be invoked via | |
| 57 System.exit(), Java is not allowed to use these signals, and the the | |
| 58 user is allowed to set his own _native_ handler for these signals and | |
| 59 invoke System.exit() as needed. Terminator.setup() is avoiding | |
| 60 registration of these signals when -Xrs is present. */ | |
| 61 case SHUTDOWN1_SIGNAL: | |
| 62 case SHUTDOWN2_SIGNAL: | |
| 63 if (ReduceSignalUsage) return (void*)-1; | |
| 64 } | |
| 65 | |
| 66 void* oldHandler = os::signal(sig, newHandler); | |
| 67 if (oldHandler == os::user_handler()) { | |
| 68 return (void *)2; | |
| 69 } else { | |
| 70 return oldHandler; | |
| 71 } | |
| 72 JVM_END | |
| 73 | |
| 74 | |
| 75 JVM_ENTRY_NO_ENV(jboolean, JVM_RaiseSignal(jint sig)) | |
| 76 if (ReduceSignalUsage) { | |
| 77 // do not allow SHUTDOWN1_SIGNAL,SHUTDOWN2_SIGNAL,BREAK_SIGNAL | |
| 78 // to be raised when ReduceSignalUsage is set, since no handler | |
| 79 // for them is actually registered in JVM or via JVM_RegisterSignal. | |
| 80 if (sig == SHUTDOWN1_SIGNAL || sig == SHUTDOWN2_SIGNAL || | |
| 81 sig == SIGBREAK) { | |
| 82 return JNI_FALSE; | |
| 83 } | |
| 84 } | |
| 85 os::signal_raise(sig); | |
| 86 return JNI_TRUE; | |
| 87 JVM_END | |
| 88 | |
| 89 | |
| 90 /* | |
| 91 All the defined signal names for Windows. | |
| 92 | |
| 93 NOTE that not all of these names are accepted by FindSignal! | |
| 94 | |
| 95 For various reasons some of these may be rejected at runtime. | |
| 96 | |
| 97 Here are the names currently accepted by a user of sun.misc.Signal with | |
| 98 1.4.1 (ignoring potential interaction with use of chaining, etc): | |
| 99 | |
| 100 (LIST TBD) | |
| 101 | |
| 102 */ | |
| 103 struct siglabel { | |
| 104 char *name; | |
| 105 int number; | |
| 106 }; | |
| 107 | |
| 108 struct siglabel siglabels[] = | |
| 109 /* derived from version 6.0 VC98/include/signal.h */ | |
| 110 {"ABRT", SIGABRT, /* abnormal termination triggered by abort cl */ | |
| 111 "FPE", SIGFPE, /* floating point exception */ | |
| 112 "SEGV", SIGSEGV, /* segment violation */ | |
| 113 "INT", SIGINT, /* interrupt */ | |
| 114 "TERM", SIGTERM, /* software term signal from kill */ | |
| 115 "BREAK", SIGBREAK, /* Ctrl-Break sequence */ | |
| 116 "ILL", SIGILL}; /* illegal instruction */ | |
| 117 | |
| 118 JVM_ENTRY_NO_ENV(jint, JVM_FindSignal(const char *name)) | |
| 119 /* find and return the named signal's number */ | |
| 120 | |
| 121 for(int i=0;i<sizeof(siglabels)/sizeof(struct siglabel);i++) | |
| 122 if(!strcmp(name, siglabels[i].name)) | |
| 123 return siglabels[i].number; | |
| 124 return -1; | |
| 125 JVM_END |