Mercurial > hg > truffle
annotate src/os/solaris/vm/jvm_solaris.cpp @ 8066:b5e3ec9c69fa
8007779: os::die() on solaris should generate core file
Reviewed-by: dholmes, rbackman
| author | sla |
|---|---|
| date | Mon, 18 Feb 2013 12:49:53 +0100 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 2010, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "prims/jvm.h" | |
| 27 #include "runtime/interfaceSupport.hpp" | |
| 28 #include "runtime/osThread.hpp" | |
| 0 | 29 |
| 30 #include <signal.h> | |
| 31 | |
| 32 // sun.misc.Signal /////////////////////////////////////////////////////////// | |
| 33 // Signal code is mostly copied from classic vm, signals_md.c 1.4 98/08/23 | |
| 34 /* | |
| 35 * This function is included primarily as a debugging aid. If Java is | |
| 36 * running in a console window, then pressing <CTRL-\\> will cause | |
| 37 * the current state of all active threads and monitors to be written | |
| 38 * to the console window. | |
| 39 */ | |
| 40 | |
| 41 JVM_ENTRY_NO_ENV(void*, JVM_RegisterSignal(jint sig, void* handler)) | |
| 42 // Copied from classic vm | |
| 43 // signals_md.c 1.4 98/08/23 | |
| 44 void* newHandler = handler == (void *)2 | |
| 45 ? os::user_handler() | |
| 46 : handler; | |
| 47 switch (sig) { | |
| 48 /* The following are already used by the VM. */ | |
| 49 case SIGFPE: | |
| 50 case SIGILL: | |
| 51 case SIGSEGV: | |
| 52 | |
| 53 /* The following signal is used by the VM to dump thread stacks unless | |
| 54 ReduceSignalUsage is set, in which case the user is allowed to set | |
| 55 his own _native_ handler for this signal; thus, in either case, | |
| 56 we do not allow JVM_RegisterSignal to change the handler. */ | |
| 57 case BREAK_SIGNAL: | |
| 58 return (void *)-1; | |
| 59 | |
| 60 /* The following signals are used for Shutdown Hooks support. However, if | |
| 61 ReduceSignalUsage (-Xrs) is set, Shutdown Hooks must be invoked via | |
| 62 System.exit(), Java is not allowed to use these signals, and the the | |
| 63 user is allowed to set his own _native_ handler for these signals and | |
| 64 invoke System.exit() as needed. Terminator.setup() is avoiding | |
| 65 registration of these signals when -Xrs is present. | |
| 66 - If the HUP signal is ignored (from the nohup) command, then Java | |
| 67 is not allowed to use this signal. | |
| 68 */ | |
| 69 case SHUTDOWN1_SIGNAL: | |
| 70 case SHUTDOWN2_SIGNAL: | |
| 71 case SHUTDOWN3_SIGNAL: | |
| 72 if (ReduceSignalUsage) return (void*)-1; | |
| 73 if (os::Solaris::is_sig_ignored(sig)) return (void*)1; | |
| 74 } | |
| 75 | |
| 76 /* Check parameterized signals. Don't allow sharing of our interrupt signal */ | |
| 77 if (sig == os::Solaris::SIGinterrupt()) { | |
| 78 return (void *)-1; | |
| 79 } | |
| 80 | |
| 81 void* oldHandler = os::signal(sig, newHandler); | |
| 82 if (oldHandler == os::user_handler()) { | |
| 83 return (void *)2; | |
| 84 } else { | |
| 85 return oldHandler; | |
| 86 } | |
| 87 JVM_END | |
| 88 | |
| 89 | |
| 90 JVM_ENTRY_NO_ENV(jboolean, JVM_RaiseSignal(jint sig)) | |
| 91 if (ReduceSignalUsage) { | |
| 92 // do not allow SHUTDOWN1_SIGNAL,SHUTDOWN2_SIGNAL,SHUTDOWN3_SIGNAL, | |
| 93 // BREAK_SIGNAL to be raised when ReduceSignalUsage is set, since | |
| 94 // no handler for them is actually registered in JVM or via | |
| 95 // JVM_RegisterSignal. | |
| 96 if (sig == SHUTDOWN1_SIGNAL || sig == SHUTDOWN2_SIGNAL || | |
| 97 sig == SHUTDOWN3_SIGNAL || sig == BREAK_SIGNAL) { | |
| 98 return JNI_FALSE; | |
| 99 } | |
| 100 } | |
| 101 else if ((sig == SHUTDOWN1_SIGNAL || sig == SHUTDOWN2_SIGNAL || | |
| 102 sig == SHUTDOWN3_SIGNAL) && os::Solaris::is_sig_ignored(sig)) { | |
| 103 // do not allow SHUTDOWN1_SIGNAL to be raised when SHUTDOWN1_SIGNAL | |
| 104 // is ignored, since no handler for them is actually registered in JVM | |
| 105 // or via JVM_RegisterSignal. | |
| 106 // This also applies for SHUTDOWN2_SIGNAL and SHUTDOWN3_SIGNAL | |
| 107 return JNI_FALSE; | |
| 108 } | |
| 109 | |
| 110 os::signal_raise(sig); | |
| 111 return JNI_TRUE; | |
| 112 JVM_END | |
| 113 | |
| 114 | |
| 115 /* | |
| 116 All the defined signal names for Solaris are defined by str2sig(). | |
| 117 | |
| 118 NOTE that not all of these names are accepted by our Java implementation | |
| 119 | |
| 120 Via an existing claim by the VM, sigaction restrictions, or | |
| 121 the "rules of Unix" some of these names will be rejected at runtime. | |
| 122 For example the VM sets up to handle USR1, sigaction returns EINVAL for | |
| 123 CANCEL, and Solaris simply doesn't allow catching of KILL. | |
| 124 | |
| 125 Here are the names currently accepted by a user of sun.misc.Signal with | |
| 126 1.4.1 (ignoring potential interaction with use of chaining, etc): | |
| 127 | |
| 128 HUP, INT, TRAP, IOT, ABRT, EMT, BUS, SYS, PIPE, ALRM, TERM, USR2, | |
| 129 CLD, CHLD, PWR, WINCH, URG, POLL, IO, TSTP, CONT, TTIN, TTOU, VTALRM, | |
| 130 PROF, XCPU, XFSZ, FREEZE, THAW, LOST | |
| 131 */ | |
| 132 | |
| 133 JVM_ENTRY_NO_ENV(jint, JVM_FindSignal(const char *name)) | |
| 134 | |
| 135 int sig; | |
| 136 | |
| 137 /* return the named signal's number */ | |
| 138 | |
| 139 if(str2sig(name, &sig)) | |
| 140 return -1; | |
| 141 else | |
| 142 return sig; | |
| 143 | |
| 144 JVM_END | |
| 145 | |
| 146 | |
| 147 //Reconciliation History | |
| 148 // 1.4 98/10/07 13:39:41 jvm_win32.cpp | |
| 149 // 1.6 99/06/22 16:39:00 jvm_win32.cpp | |
| 150 //End |