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src/os/windows/vm/jvm_windows.cpp@f9be75d21404 (annotated)

src/os/windows/vm/jvm_windows.cpp

Tue, 14 May 2013 09:41:12 -0700

author

minqi

date

Tue, 14 May 2013 09:41:12 -0700

changeset 5103

f9be75d21404

parent 2314

f95d63e2154a

child 6876

710a3c8b516e

permissions

-rw-r--r--

8012902: remove use of global operator new - take 2
Summary: The fix of 8010992, disable use of global operator new and new[] which caused failure on some tests. This takes two of the bugs also add ALLOW_OPERATOR_NEW_USAGE to prevent crash for third party code calling operator new of jvm on certain platforms.
Reviewed-by: coleenp, dholmes, zgu
Contributed-by: yumin.qi@oracle.com

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1998, 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	#include "precompiled.hpp"
stefank@2314	26	#include "prims/jvm.h"
stefank@2314	27	#include "runtime/interfaceSupport.hpp"
stefank@2314	28	#include "runtime/osThread.hpp"
duke@435	29
duke@435	30	#include <signal.h>
duke@435	31
duke@435	32	JVM_LEAF(void*, JVM_GetThreadInterruptEvent())
duke@435	33	return Thread::current()->osthread()->interrupt_event();
duke@435	34	JVM_END
duke@435	35
duke@435	36	// sun.misc.Signal ///////////////////////////////////////////////////////////
duke@435	37	// Signal code is mostly copied from classic vm, signals_md.c 1.4 98/08/23
duke@435	38	/*
duke@435	39	* This function is included primarily as a debugging aid. If Java is
duke@435	40	* running in a console window, then pressing <CTRL-BREAK> will cause
duke@435	41	* the current state of all active threads and monitors to be written
duke@435	42	* to the console window.
duke@435	43	*/
duke@435	44
duke@435	45	JVM_ENTRY_NO_ENV(void*, JVM_RegisterSignal(jint sig, void* handler))
duke@435	46	// Copied from classic vm
duke@435	47	// signals_md.c 1.4 98/08/23
duke@435	48	void* newHandler = handler == (void *)2
duke@435	49	? os::user_handler()
duke@435	50	: handler;
duke@435	51	switch (sig) {
duke@435	52	case SIGFPE:
duke@435	53	return (void *)-1; /* already used by VM */
duke@435	54	case SIGBREAK:
duke@435	55	if (!ReduceSignalUsage) return (void *)-1;
duke@435	56
duke@435	57	/* The following signals are used for Shutdown Hooks support. However, if
duke@435	58	ReduceSignalUsage (-Xrs) is set, Shutdown Hooks must be invoked via
duke@435	59	System.exit(), Java is not allowed to use these signals, and the the
duke@435	60	user is allowed to set his own _native_ handler for these signals and
duke@435	61	invoke System.exit() as needed. Terminator.setup() is avoiding
duke@435	62	registration of these signals when -Xrs is present. */
duke@435	63	case SHUTDOWN1_SIGNAL:
duke@435	64	case SHUTDOWN2_SIGNAL:
duke@435	65	if (ReduceSignalUsage) return (void*)-1;
duke@435	66	}
duke@435	67
duke@435	68	void* oldHandler = os::signal(sig, newHandler);
duke@435	69	if (oldHandler == os::user_handler()) {
duke@435	70	return (void *)2;
duke@435	71	} else {
duke@435	72	return oldHandler;
duke@435	73	}
duke@435	74	JVM_END
duke@435	75
duke@435	76
duke@435	77	JVM_ENTRY_NO_ENV(jboolean, JVM_RaiseSignal(jint sig))
duke@435	78	if (ReduceSignalUsage) {
duke@435	79	// do not allow SHUTDOWN1_SIGNAL,SHUTDOWN2_SIGNAL,BREAK_SIGNAL
duke@435	80	// to be raised when ReduceSignalUsage is set, since no handler
duke@435	81	// for them is actually registered in JVM or via JVM_RegisterSignal.
duke@435	82	if (sig == SHUTDOWN1_SIGNAL || sig == SHUTDOWN2_SIGNAL ||
duke@435	83	sig == SIGBREAK) {
duke@435	84	return JNI_FALSE;
duke@435	85	}
duke@435	86	}
duke@435	87	os::signal_raise(sig);
duke@435	88	return JNI_TRUE;
duke@435	89	JVM_END
duke@435	90
duke@435	91
duke@435	92	/*
duke@435	93	All the defined signal names for Windows.
duke@435	94
duke@435	95	NOTE that not all of these names are accepted by FindSignal!
duke@435	96
duke@435	97	For various reasons some of these may be rejected at runtime.
duke@435	98
duke@435	99	Here are the names currently accepted by a user of sun.misc.Signal with
duke@435	100	1.4.1 (ignoring potential interaction with use of chaining, etc):
duke@435	101
duke@435	102	(LIST TBD)
duke@435	103
duke@435	104	*/
duke@435	105	struct siglabel {
duke@435	106	char *name;
duke@435	107	int number;
duke@435	108	};
duke@435	109
duke@435	110	struct siglabel siglabels[] =
duke@435	111	/* derived from version 6.0 VC98/include/signal.h */
duke@435	112	{"ABRT", SIGABRT, /* abnormal termination triggered by abort cl */
duke@435	113	"FPE", SIGFPE, /* floating point exception */
duke@435	114	"SEGV", SIGSEGV, /* segment violation */
duke@435	115	"INT", SIGINT, /* interrupt */
duke@435	116	"TERM", SIGTERM, /* software term signal from kill */
duke@435	117	"BREAK", SIGBREAK, /* Ctrl-Break sequence */
duke@435	118	"ILL", SIGILL}; /* illegal instruction */
duke@435	119
duke@435	120	JVM_ENTRY_NO_ENV(jint, JVM_FindSignal(const char *name))
duke@435	121	/* find and return the named signal's number */
duke@435	122
duke@435	123	for(int i=0;i<sizeof(siglabels)/sizeof(struct siglabel);i++)
duke@435	124	if(!strcmp(name, siglabels[i].name))
duke@435	125	return siglabels[i].number;
duke@435	126	return -1;
duke@435	127	JVM_END