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src/os/linux/vm/hpi_linux.cpp@9c2ecc2ffb12 (annotated)

src/os/linux/vm/hpi_linux.cpp

Fri, 11 Jul 2008 01:14:44 -0700

author

trims

date

Fri, 11 Jul 2008 01:14:44 -0700

changeset 670

9c2ecc2ffb12

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

Merge

duke@435	1	/*
duke@435	2	* Copyright 1999-2006 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_hpi_linux.cpp.incl"
duke@435	27
duke@435	28	# include <sys/param.h>
duke@435	29	# include <dlfcn.h>
duke@435	30
duke@435	31	typedef jint (JNICALL *init_t)(GetInterfaceFunc *, void *);
duke@435	32
duke@435	33	void hpi::initialize_get_interface(vm_calls_t *callbacks) {
duke@435	34	char buf[JVM_MAXPATHLEN];
duke@435	35	void *hpi_handle;
duke@435	36	GetInterfaceFunc& getintf = _get_interface;
duke@435	37	jint (JNICALL * DLL_Initialize)(GetInterfaceFunc *, void *);
duke@435	38
duke@435	39	if (HPILibPath && HPILibPath[0]) {
duke@435	40	strncpy(buf, HPILibPath, JVM_MAXPATHLEN - 1);
duke@435	41	buf[JVM_MAXPATHLEN - 1] = '\0';
duke@435	42	} else {
duke@435	43	const char *thread_type = "native_threads";
duke@435	44
duke@435	45	os::jvm_path(buf, JVM_MAXPATHLEN);
duke@435	46
duke@435	47	#ifdef PRODUCT
duke@435	48	const char * hpi_lib = "/libhpi.so";
duke@435	49	#else
duke@435	50	char * ptr = strrchr(buf, '/');
duke@435	51	assert(strstr(ptr, "/libjvm") == ptr, "invalid library name");
duke@435	52	const char * hpi_lib = strstr(ptr, "_g") ? "/libhpi_g.so" : "/libhpi.so";
duke@435	53	#endif
duke@435	54
duke@435	55	*(strrchr(buf, '/')) = '\0'; /* get rid of /libjvm.so */
duke@435	56	char* p = strrchr(buf, '/');
duke@435	57	if (p != NULL) p[1] = '\0'; /* get rid of hotspot */
duke@435	58	strcat(buf, thread_type);
duke@435	59	strcat(buf, hpi_lib);
duke@435	60	}
duke@435	61
duke@435	62	if (TraceHPI) tty->print_cr("Loading HPI %s ", buf);
duke@435	63	#ifdef SPARC
duke@435	64	// On 64-bit Ubuntu Sparc RTLD_NOW leads to unresolved deps in libpthread.so
duke@435	65	# define OPEN_MODE RTLD_LAZY
duke@435	66	#else
duke@435	67	// We use RTLD_NOW because of bug 4032715
duke@435	68	# define OPEN_MODE RTLD_NOW
duke@435	69	#endif
duke@435	70	hpi_handle = dlopen(buf, OPEN_MODE);
duke@435	71	#undef OPEN_MODE
duke@435	72
duke@435	73	if (hpi_handle == NULL) {
duke@435	74	if (TraceHPI) tty->print_cr("HPI dlopen failed: %s", dlerror());
duke@435	75	return;
duke@435	76	}
duke@435	77	DLL_Initialize = CAST_TO_FN_PTR(jint (JNICALL *)(GetInterfaceFunc *, void *),
duke@435	78	dlsym(hpi_handle, "DLL_Initialize"));
duke@435	79	if (TraceHPI && DLL_Initialize == NULL) tty->print_cr("HPI dlsym of DLL_Initialize failed: %s", dlerror());
duke@435	80	if (DLL_Initialize == NULL ||
duke@435	81	(*DLL_Initialize)(&getintf, callbacks) < 0) {
duke@435	82	if (TraceHPI) tty->print_cr("HPI DLL_Initialize failed");
duke@435	83	return;
duke@435	84	}
duke@435	85	if (TraceHPI) tty->print_cr("HPI loaded successfully");
duke@435	86	}