author | ngmr |
Mon, 10 Oct 2011 14:50:51 +0100 | |
changeset 10706 | 9bd5de10aaf9 |
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child 12291 | 1be435e23542 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#include "java.h" |
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#include <dirent.h> |
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#include <dlfcn.h> |
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#include <fcntl.h> |
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#include <inttypes.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <sys/stat.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include "manifest_info.h" |
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#include "version_comp.h" |
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#ifdef __linux__ |
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#include <pthread.h> |
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#else |
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#include <thread.h> |
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#endif |
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#define JVM_DLL "libjvm.so" |
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#define JAVA_DLL "libjava.so" |
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/* help jettison the LD_LIBRARY_PATH settings in the future */ |
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#ifndef SETENV_REQUIRED |
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#define SETENV_REQUIRED |
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#endif |
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/* |
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* If a processor / os combination has the ability to run binaries of |
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* two data models and cohabitation of jre/jdk bits with both data |
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* models is supported, then DUAL_MODE is defined. When DUAL_MODE is |
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* defined, the architecture names for the narrow and wide version of |
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* the architecture are defined in LIBARCH64NAME and LIBARCH32NAME. |
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* Currently only Solaris on sparc/sparcv9 and i586/amd64 is DUAL_MODE; |
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* linux i586/amd64 could be defined as DUAL_MODE but that is not the |
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* current policy. |
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*/ |
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#ifdef __solaris__ |
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# define DUAL_MODE |
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# ifndef LIBARCH32NAME |
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# error "The macro LIBARCH32NAME was not defined on the compile line" |
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# endif |
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# ifndef LIBARCH64NAME |
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# error "The macro LIBARCH64NAME was not defined on the compile line" |
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# endif |
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# include <sys/systeminfo.h> |
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# include <sys/elf.h> |
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# include <stdio.h> |
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#endif |
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/* pointer to environment */ |
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extern char **environ; |
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/* |
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* A collection of useful strings. One should think of these as #define |
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* entries, but actual strings can be more efficient (with many compilers). |
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*/ |
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#ifdef __linux__ |
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static const char *system_dir = "/usr/java"; |
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static const char *user_dir = "/java"; |
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#else /* Solaris */ |
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static const char *system_dir = "/usr/jdk"; |
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static const char *user_dir = "/jdk"; |
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#endif |
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/* Store the name of the executable once computed */ |
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static char *execname = NULL; |
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/* |
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* Flowchart of launcher execs and options processing on unix |
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* |
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* The selection of the proper vm shared library to open depends on |
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* several classes of command line options, including vm "flavor" |
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* options (-client, -server) and the data model options, -d32 and |
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* -d64, as well as a version specification which may have come from |
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* the command line or from the manifest of an executable jar file. |
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* The vm selection options are not passed to the running |
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* virtual machine; they must be screened out by the launcher. |
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* |
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* The version specification (if any) is processed first by the |
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* platform independent routine SelectVersion. This may result in |
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* the exec of the specified launcher version. |
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* |
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* Previously the launcher modified the LD_LIBRARY_PATH appropriately for the |
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* desired data model path, regardless if data models matched or not. The |
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* launcher subsequently exec'ed the desired executable, in order to make the |
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* LD_LIBRARY_PATH path available, for the runtime linker. |
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* |
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* Now, in most cases,the launcher will dlopen the target libjvm.so. All |
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* required libraries are loaded by the runtime linker, using the |
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* $RPATH/$ORIGIN baked into the shared libraries at compile time. Therefore, |
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* in most cases, the launcher will only exec, if the data models are |
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* mismatched, and will not set any environment variables, regardless of the |
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* data models. |
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* |
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* However, if the environment contains a LD_LIBRARY_PATH, this will cause the |
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* launcher to inspect the LD_LIBRARY_PATH. The launcher will check |
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* a. if the LD_LIBRARY_PATH's first component is the the path to the desired |
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* libjvm.so |
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* b. if any other libjvm.so is found in any of the paths. |
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* If case b is true, then the launcher will set the LD_LIBRARY_PATH to the |
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* desired JRE and reexec, in order to propagate the environment. |
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* |
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* Main |
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* (incoming argv) |
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* | |
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* \|/ |
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* SelectVersion |
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* (selects the JRE version, note: not data model) |
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* | |
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* \|/ |
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* CreateExecutionEnvironment |
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* (determines desired data model) |
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* | |
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* | |
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* \|/ |
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* Have Desired Model ? --> NO --> Is Dual-Mode ? --> NO --> Exit(with error) |
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* | | |
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* | | |
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* | \|/ |
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* | YES |
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* | | |
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* | | |
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* | \|/ |
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* | CheckJvmType |
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* | (removes -client, -server etc.) |
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* | | |
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* | | |
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* \|/ \|/ |
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* YES Find the desired executable/library |
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* | | |
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* | | |
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* \|/ \|/ |
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* CheckJvmType RequiresSetenv |
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* (removes -client, -server, etc.) |
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* | |
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* | |
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* \|/ |
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* TranslateDashJArgs... |
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* (Prepare to pass args to vm) |
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* | |
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* | |
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* \|/ |
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* ParseArguments |
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* (removes -d32 and -d64 if any, |
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* processes version options, |
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* creates argument list for vm, |
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* etc.) |
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* | |
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* | |
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* \|/ |
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* RequiresSetenv |
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* Is LD_LIBRARY_PATH |
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* and friends set ? --> NO --> Have Desired Model ? NO --> Re-exec --> Main |
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* YES YES --> Continue |
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* | |
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* | |
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* \|/ |
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* Path is desired JRE ? YES --> Have Desired Model ? NO --> Re-exec --> Main |
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* NO YES --> Continue |
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* | |
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* | |
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* \|/ |
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* Paths have well known |
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* jvm paths ? --> NO --> Have Desired Model ? NO --> Re-exec --> Main |
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* YES YES --> Continue |
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* | |
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* | |
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* \|/ |
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* Does libjvm.so exit |
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* in any of them ? --> NO --> Have Desired Model ? NO --> Re-exec --> Main |
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* YES YES --> Continue |
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* | |
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* | |
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* \|/ |
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* Set the LD_LIBRARY_PATH |
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* | |
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* | |
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* \|/ |
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* Re-exec |
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* | |
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208 |
* | |
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209 |
* \|/ |
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210 |
* Main |
2 | 211 |
*/ |
212 |
||
213 |
static const char * SetExecname(char **argv); |
|
214 |
static jboolean GetJVMPath(const char *jrepath, const char *jvmtype, |
|
215 |
char *jvmpath, jint jvmpathsize, const char * arch); |
|
216 |
static jboolean GetJREPath(char *path, jint pathsize, const char * arch, jboolean speculative); |
|
217 |
||
218 |
||
219 |
#define GetArch() GetArchPath(CURRENT_DATA_MODEL) |
|
220 |
||
221 |
const char * |
|
222 |
GetArchPath(int nbits) |
|
223 |
{ |
|
224 |
switch(nbits) { |
|
225 |
#ifdef DUAL_MODE |
|
226 |
case 32: |
|
227 |
return LIBARCH32NAME; |
|
228 |
case 64: |
|
229 |
return LIBARCH64NAME; |
|
230 |
#endif /* DUAL_MODE */ |
|
231 |
default: |
|
232 |
return LIBARCHNAME; |
|
233 |
} |
|
234 |
} |
|
235 |
||
9244
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#ifdef SETENV_REQUIRED |
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static jboolean |
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238 |
JvmExists(const char *path) { |
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239 |
char tmp[PATH_MAX + 1]; |
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240 |
struct stat statbuf; |
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241 |
JLI_Snprintf(tmp, PATH_MAX, "%s/%s", path, JVM_DLL); |
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242 |
if (stat(tmp, &statbuf) == 0) { |
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243 |
return JNI_TRUE; |
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244 |
} |
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return JNI_FALSE; |
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246 |
} |
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247 |
/* |
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* contains a lib/$LIBARCH/{server,client}/libjvm.so ? |
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249 |
*/ |
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250 |
static jboolean |
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251 |
ContainsLibJVM(int wanted, const char *env) { |
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252 |
char clientPattern[PATH_MAX + 1]; |
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253 |
char serverPattern[PATH_MAX + 1]; |
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254 |
char *envpath; |
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255 |
char *path; |
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256 |
jboolean clientPatternFound; |
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jboolean serverPatternFound; |
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258 |
|
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259 |
/* fastest path */ |
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260 |
if (env == NULL) { |
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261 |
return JNI_FALSE; |
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262 |
} |
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263 |
|
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264 |
/* the usual suspects */ |
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265 |
JLI_Snprintf(clientPattern, PATH_MAX, "lib/%s/client", GetArchPath(wanted)); |
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266 |
JLI_Snprintf(serverPattern, PATH_MAX, "lib/%s/server", GetArchPath(wanted)); |
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267 |
|
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268 |
/* to optimize for time, test if any of our usual suspects are present. */ |
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269 |
clientPatternFound = JLI_StrStr(env, clientPattern) != NULL; |
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270 |
serverPatternFound = JLI_StrStr(env, serverPattern) != NULL; |
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271 |
if (clientPatternFound == JNI_FALSE && serverPatternFound == JNI_FALSE) { |
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272 |
return JNI_FALSE; |
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273 |
} |
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274 |
|
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275 |
/* |
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276 |
* we have a suspicious path component, check if it contains a libjvm.so |
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277 |
*/ |
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278 |
envpath = JLI_StringDup(env); |
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279 |
for (path = JLI_StrTok(envpath, ":"); path != NULL; path = JLI_StrTok(NULL, ":")) { |
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280 |
if (clientPatternFound && JLI_StrStr(path, clientPattern) != NULL) { |
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281 |
if (JvmExists(path)) { |
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282 |
JLI_MemFree(envpath); |
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283 |
return JNI_TRUE; |
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284 |
} |
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285 |
} |
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286 |
if (serverPatternFound && JLI_StrStr(path, serverPattern) != NULL) { |
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287 |
if (JvmExists(path)) { |
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288 |
JLI_MemFree(envpath); |
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289 |
return JNI_TRUE; |
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290 |
} |
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291 |
} |
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292 |
} |
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293 |
JLI_MemFree(envpath); |
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294 |
return JNI_FALSE; |
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295 |
} |
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|
296 |
|
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297 |
/* |
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298 |
* Test whether the environment variable needs to be set, see flowchart. |
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299 |
*/ |
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300 |
static jboolean |
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301 |
RequiresSetenv(int wanted, const char *jvmpath) { |
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302 |
char jpath[PATH_MAX + 1]; |
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303 |
char *llp; |
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304 |
char *dmllp = NULL; |
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305 |
char *p; /* a utility pointer */ |
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306 |
|
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307 |
llp = getenv("LD_LIBRARY_PATH"); |
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308 |
#ifdef __solaris__ |
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309 |
dmllp = (CURRENT_DATA_MODEL == 32) |
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310 |
? getenv("LD_LIBRARY_PATH_32") |
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311 |
: getenv("LD_LIBRARY_PATH_64"); |
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312 |
#endif /* __solaris__ */ |
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313 |
/* no environment variable is a good environment variable */ |
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314 |
if (llp == NULL && dmllp == NULL) { |
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315 |
return JNI_FALSE; |
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316 |
} |
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317 |
#ifdef __linux |
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318 |
/* |
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319 |
* On linux, if a binary is running as sgid or suid, glibc sets |
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320 |
* LD_LIBRARY_PATH to the empty string for security purposes. (In contrast, |
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321 |
* on Solaris the LD_LIBRARY_PATH variable for a privileged binary does not |
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322 |
* lose its settings; but the dynamic linker does apply more scrutiny to the |
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323 |
* path.) The launcher uses the value of LD_LIBRARY_PATH to prevent an exec |
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324 |
* loop, here and further downstream. Therefore, if we are running sgid or |
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325 |
* suid, this function's setting of LD_LIBRARY_PATH will be ineffective and |
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326 |
* we should case a return from the calling function. Getting the right |
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327 |
* libraries will be handled by the RPATH. In reality, this check is |
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328 |
* redundant, as the previous check for a non-null LD_LIBRARY_PATH will |
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329 |
* return back to the calling function forthwith, it is left here to safe |
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330 |
* guard against any changes, in the glibc's existing security policy. |
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331 |
*/ |
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|
332 |
if ((getgid() != getegid()) || (getuid() != geteuid())) { |
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|
333 |
return JNI_FALSE; |
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|
334 |
} |
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|
335 |
#endif /* __linux */ |
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|
336 |
|
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|
337 |
/* |
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|
338 |
* Prevent recursions. Since LD_LIBRARY_PATH is the one which will be set by |
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|
339 |
* previous versions of the JRE, thus it is the only path that matters here. |
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340 |
* So we check to see if the desired JRE is set. |
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|
341 |
*/ |
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|
342 |
JLI_StrNCpy(jpath, jvmpath, PATH_MAX); |
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343 |
p = JLI_StrRChr(jpath, '/'); |
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|
344 |
*p = '\0'; |
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|
345 |
if (llp != NULL && JLI_StrNCmp(llp, jpath, JLI_StrLen(jpath)) == 0) { |
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346 |
return JNI_FALSE; |
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|
347 |
} |
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|
348 |
|
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|
349 |
/* scrutinize all the paths further */ |
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|
350 |
if (llp != NULL && ContainsLibJVM(wanted, llp)) { |
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|
351 |
return JNI_TRUE; |
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|
352 |
} |
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|
353 |
if (dmllp != NULL && ContainsLibJVM(wanted, dmllp)) { |
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|
354 |
return JNI_TRUE; |
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|
355 |
} |
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|
356 |
return JNI_FALSE; |
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|
357 |
} |
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|
358 |
#endif /* SETENV_REQUIRED */ |
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|
359 |
|
2 | 360 |
void |
6005 | 361 |
CreateExecutionEnvironment(int *pargc, char ***pargv, |
362 |
char jrepath[], jint so_jrepath, |
|
363 |
char jvmpath[], jint so_jvmpath) { |
|
2 | 364 |
/* |
365 |
* First, determine if we are running the desired data model. If we |
|
366 |
* are running the desired data model, all the error messages |
|
367 |
* associated with calling GetJREPath, ReadKnownVMs, etc. should be |
|
368 |
* output. However, if we are not running the desired data model, |
|
369 |
* some of the errors should be suppressed since it is more |
|
370 |
* informative to issue an error message based on whether or not the |
|
371 |
* os/processor combination has dual mode capabilities. |
|
372 |
*/ |
|
373 |
jboolean jvmpathExists; |
|
374 |
||
375 |
/* Compute/set the name of the executable */ |
|
6005 | 376 |
SetExecname(*pargv); |
2 | 377 |
|
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|
378 |
/* Check data model flags, and exec process, if needed */ |
2 | 379 |
{ |
380 |
char *arch = (char *)GetArch(); /* like sparc or sparcv9 */ |
|
381 |
char * jvmtype = NULL; |
|
6005 | 382 |
int argc = *pargc; |
383 |
char **argv = *pargv; |
|
2 | 384 |
int running = CURRENT_DATA_MODEL; |
385 |
||
386 |
int wanted = running; /* What data mode is being |
|
387 |
asked for? Current model is |
|
388 |
fine unless another model |
|
389 |
is asked for */ |
|
9244
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|
390 |
#ifdef SETENV_REQUIRED |
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|
391 |
jboolean mustsetenv = JNI_FALSE; |
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|
392 |
char *runpath = NULL; /* existing effective LD_LIBRARY_PATH setting */ |
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|
393 |
char* new_runpath = NULL; /* desired new LD_LIBRARY_PATH string */ |
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|
394 |
char* newpath = NULL; /* path on new LD_LIBRARY_PATH */ |
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|
395 |
char* lastslash = NULL; |
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|
396 |
char** newenvp = NULL; /* current environment */ |
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|
397 |
#ifdef __solaris__ |
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|
398 |
char* dmpath = NULL; /* data model specific LD_LIBRARY_PATH, |
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|
399 |
Solaris only */ |
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|
400 |
#endif /* __solaris__ */ |
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|
401 |
#endif /* SETENV_REQUIRED */ |
2 | 402 |
|
403 |
char** newargv = NULL; |
|
404 |
int newargc = 0; |
|
405 |
||
406 |
/* |
|
407 |
* Starting in 1.5, all unix platforms accept the -d32 and -d64 |
|
408 |
* options. On platforms where only one data-model is supported |
|
409 |
* (e.g. ia-64 Linux), using the flag for the other data model is |
|
410 |
* an error and will terminate the program. |
|
411 |
*/ |
|
412 |
||
413 |
{ /* open new scope to declare local variables */ |
|
414 |
int i; |
|
415 |
||
6005 | 416 |
newargv = (char **)JLI_MemAlloc((argc+1) * sizeof(char*)); |
2 | 417 |
newargv[newargc++] = argv[0]; |
418 |
||
419 |
/* scan for data model arguments and remove from argument list; |
|
420 |
last occurrence determines desired data model */ |
|
421 |
for (i=1; i < argc; i++) { |
|
422 |
||
423 |
if (JLI_StrCmp(argv[i], "-J-d64") == 0 || JLI_StrCmp(argv[i], "-d64") == 0) { |
|
424 |
wanted = 64; |
|
425 |
continue; |
|
426 |
} |
|
427 |
if (JLI_StrCmp(argv[i], "-J-d32") == 0 || JLI_StrCmp(argv[i], "-d32") == 0) { |
|
428 |
wanted = 32; |
|
429 |
continue; |
|
430 |
} |
|
431 |
newargv[newargc++] = argv[i]; |
|
432 |
||
433 |
if (IsJavaArgs()) { |
|
434 |
if (argv[i][0] != '-') continue; |
|
435 |
} else { |
|
436 |
if (JLI_StrCmp(argv[i], "-classpath") == 0 || JLI_StrCmp(argv[i], "-cp") == 0) { |
|
437 |
i++; |
|
438 |
if (i >= argc) break; |
|
439 |
newargv[newargc++] = argv[i]; |
|
440 |
continue; |
|
441 |
} |
|
442 |
if (argv[i][0] != '-') { i++; break; } |
|
443 |
} |
|
444 |
} |
|
445 |
||
446 |
/* copy rest of args [i .. argc) */ |
|
447 |
while (i < argc) { |
|
448 |
newargv[newargc++] = argv[i++]; |
|
449 |
} |
|
450 |
newargv[newargc] = NULL; |
|
451 |
||
452 |
/* |
|
453 |
* newargv has all proper arguments here |
|
454 |
*/ |
|
455 |
||
456 |
argc = newargc; |
|
457 |
argv = newargv; |
|
458 |
} |
|
459 |
||
460 |
/* If the data model is not changing, it is an error if the |
|
461 |
jvmpath does not exist */ |
|
462 |
if (wanted == running) { |
|
463 |
/* Find out where the JRE is that we will be using. */ |
|
464 |
if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) { |
|
1145
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|
465 |
JLI_ReportErrorMessage(JRE_ERROR1); |
2 | 466 |
exit(2); |
467 |
} |
|
468 |
||
469 |
/* Find the specified JVM type */ |
|
470 |
if (ReadKnownVMs(jrepath, arch, JNI_FALSE) < 1) { |
|
1145
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|
471 |
JLI_ReportErrorMessage(CFG_ERROR7); |
2 | 472 |
exit(1); |
473 |
} |
|
474 |
||
475 |
jvmpath[0] = '\0'; |
|
6005 | 476 |
jvmtype = CheckJvmType(pargc, pargv, JNI_FALSE); |
477 |
if (JLI_StrCmp(jvmtype, "ERROR") == 0) { |
|
478 |
JLI_ReportErrorMessage(CFG_ERROR9); |
|
479 |
exit(4); |
|
480 |
} |
|
2 | 481 |
|
482 |
if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch )) { |
|
1145
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|
483 |
JLI_ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath); |
2 | 484 |
exit(4); |
485 |
} |
|
4340
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|
486 |
/* |
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changeset
|
487 |
* we seem to have everything we need, so without further ado |
9244
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|
488 |
* we return back, otherwise proceed to set the environment. |
4340
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changeset
|
489 |
*/ |
9244
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changeset
|
490 |
#ifdef SETENV_REQUIRED |
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|
491 |
mustsetenv = RequiresSetenv(wanted, jvmpath); |
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|
492 |
JLI_TraceLauncher("mustsetenv: %s\n", mustsetenv ? "TRUE" : "FALSE"); |
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|
493 |
|
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|
494 |
if (mustsetenv == JNI_FALSE) { |
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|
495 |
return; |
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changeset
|
496 |
} |
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|
497 |
#else |
4340
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changeset
|
498 |
return; |
9244
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|
499 |
#endif /* SETENV_REQUIRED */ |
2 | 500 |
} else { /* do the same speculatively or exit */ |
501 |
#ifdef DUAL_MODE |
|
502 |
if (running != wanted) { |
|
503 |
/* Find out where the JRE is that we will be using. */ |
|
504 |
if (!GetJREPath(jrepath, so_jrepath, GetArchPath(wanted), JNI_TRUE)) { |
|
6005 | 505 |
/* give up and let other code report error message */ |
506 |
JLI_ReportErrorMessage(JRE_ERROR2, wanted); |
|
507 |
exit(1); |
|
2 | 508 |
} |
509 |
||
510 |
/* |
|
511 |
* Read in jvm.cfg for target data model and process vm |
|
512 |
* selection options. |
|
513 |
*/ |
|
514 |
if (ReadKnownVMs(jrepath, GetArchPath(wanted), JNI_TRUE) < 1) { |
|
6005 | 515 |
/* give up and let other code report error message */ |
516 |
JLI_ReportErrorMessage(JRE_ERROR2, wanted); |
|
517 |
exit(1); |
|
2 | 518 |
} |
519 |
jvmpath[0] = '\0'; |
|
6005 | 520 |
jvmtype = CheckJvmType(pargc, pargv, JNI_TRUE); |
521 |
if (JLI_StrCmp(jvmtype, "ERROR") == 0) { |
|
522 |
JLI_ReportErrorMessage(CFG_ERROR9); |
|
523 |
exit(4); |
|
524 |
} |
|
525 |
||
2 | 526 |
/* exec child can do error checking on the existence of the path */ |
527 |
jvmpathExists = GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, GetArchPath(wanted)); |
|
9244
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|
528 |
#ifdef SETENV_REQUIRED |
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changeset
|
529 |
mustsetenv = RequiresSetenv(wanted, jvmpath); |
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|
530 |
#endif /* SETENV_REQUIRED */ |
2 | 531 |
} |
532 |
#else |
|
1145
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changeset
|
533 |
JLI_ReportErrorMessage(JRE_ERROR2, wanted); |
2 | 534 |
exit(1); |
535 |
#endif |
|
9244
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changeset
|
536 |
} |
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changeset
|
537 |
#ifdef SETENV_REQUIRED |
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changeset
|
538 |
if (mustsetenv) { |
84d85c90d5db
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diff
changeset
|
539 |
/* |
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diff
changeset
|
540 |
* We will set the LD_LIBRARY_PATH as follows: |
84d85c90d5db
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changeset
|
541 |
* |
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changeset
|
542 |
* o $JVMPATH (directory portion only) |
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|
543 |
* o $JRE/lib/$LIBARCHNAME |
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|
544 |
* o $JRE/../lib/$LIBARCHNAME |
84d85c90d5db
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changeset
|
545 |
* |
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changeset
|
546 |
* followed by the user's previous effective LD_LIBRARY_PATH, if |
84d85c90d5db
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changeset
|
547 |
* any. |
84d85c90d5db
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changeset
|
548 |
*/ |
84d85c90d5db
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changeset
|
549 |
|
84d85c90d5db
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changeset
|
550 |
#ifdef __solaris__ |
84d85c90d5db
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changeset
|
551 |
/* |
84d85c90d5db
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diff
changeset
|
552 |
* Starting in Solaris 7, ld.so.1 supports three LD_LIBRARY_PATH |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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changeset
|
553 |
* variables: |
84d85c90d5db
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diff
changeset
|
554 |
* |
84d85c90d5db
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diff
changeset
|
555 |
* 1. LD_LIBRARY_PATH -- used for 32 and 64 bit searches if |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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changeset
|
556 |
* data-model specific variables are not set. |
84d85c90d5db
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changeset
|
557 |
* |
84d85c90d5db
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diff
changeset
|
558 |
* 2. LD_LIBRARY_PATH_64 -- overrides and replaces LD_LIBRARY_PATH |
84d85c90d5db
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changeset
|
559 |
* for 64-bit binaries. |
84d85c90d5db
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changeset
|
560 |
* |
84d85c90d5db
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diff
changeset
|
561 |
* 3. LD_LIBRARY_PATH_32 -- overrides and replaces LD_LIBRARY_PATH |
84d85c90d5db
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changeset
|
562 |
* for 32-bit binaries. |
84d85c90d5db
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changeset
|
563 |
* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
564 |
* The vm uses LD_LIBRARY_PATH to set the java.library.path system |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
565 |
* property. To shield the vm from the complication of multiple |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
566 |
* LD_LIBRARY_PATH variables, if the appropriate data model |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
567 |
* specific variable is set, we will act as if LD_LIBRARY_PATH had |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
568 |
* the value of the data model specific variant and the data model |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
569 |
* specific variant will be unset. Note that the variable for the |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
570 |
* *wanted* data model must be used (if it is set), not simply the |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
571 |
* current running data model. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
572 |
*/ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
573 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
574 |
switch (wanted) { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
575 |
case 0: |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
576 |
if (running == 32) { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
577 |
dmpath = getenv("LD_LIBRARY_PATH_32"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
578 |
wanted = 32; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
579 |
} else { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
580 |
dmpath = getenv("LD_LIBRARY_PATH_64"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
581 |
wanted = 64; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
582 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
583 |
break; |
2 | 584 |
|
9244
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
585 |
case 32: |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
586 |
dmpath = getenv("LD_LIBRARY_PATH_32"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
587 |
break; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
588 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
589 |
case 64: |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
590 |
dmpath = getenv("LD_LIBRARY_PATH_64"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
591 |
break; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
592 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
593 |
default: |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
594 |
JLI_ReportErrorMessage(JRE_ERROR3, __LINE__); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
595 |
exit(1); /* unknown value in wanted */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
596 |
break; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
597 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
598 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
599 |
/* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
600 |
* If dmpath is NULL, the relevant data model specific variable is |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
601 |
* not set and normal LD_LIBRARY_PATH should be used. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
602 |
*/ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
603 |
if (dmpath == NULL) { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
604 |
runpath = getenv("LD_LIBRARY_PATH"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
605 |
} else { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
606 |
runpath = dmpath; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
607 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
608 |
#else |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
609 |
/* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
610 |
* If not on Solaris, assume only a single LD_LIBRARY_PATH |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
611 |
* variable. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
612 |
*/ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
613 |
runpath = getenv("LD_LIBRARY_PATH"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
614 |
#endif /* __solaris__ */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
615 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
616 |
/* runpath contains current effective LD_LIBRARY_PATH setting */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
617 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
618 |
jvmpath = JLI_StringDup(jvmpath); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
619 |
new_runpath = JLI_MemAlloc(((runpath != NULL) ? JLI_StrLen(runpath) : 0) + |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
620 |
2 * JLI_StrLen(jrepath) + 2 * JLI_StrLen(arch) + |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
621 |
JLI_StrLen(jvmpath) + 52); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
622 |
newpath = new_runpath + JLI_StrLen("LD_LIBRARY_PATH="); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
623 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
624 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
625 |
/* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
626 |
* Create desired LD_LIBRARY_PATH value for target data model. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
627 |
*/ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
628 |
{ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
629 |
/* remove the name of the .so from the JVM path */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
630 |
lastslash = JLI_StrRChr(jvmpath, '/'); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
631 |
if (lastslash) |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
632 |
*lastslash = '\0'; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
633 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
634 |
sprintf(new_runpath, "LD_LIBRARY_PATH=" |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
635 |
"%s:" |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
636 |
"%s/lib/%s:" |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
637 |
"%s/../lib/%s", |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
638 |
jvmpath, |
2 | 639 |
#ifdef DUAL_MODE |
9244
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
640 |
jrepath, GetArchPath(wanted), |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
641 |
jrepath, GetArchPath(wanted) |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
642 |
#else |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
643 |
jrepath, arch, |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
644 |
jrepath, arch |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
645 |
#endif |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
646 |
); |
2 | 647 |
|
648 |
||
9244
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
649 |
/* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
650 |
* Check to make sure that the prefix of the current path is the |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
651 |
* desired environment variable setting, though the RequiresSetenv |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
652 |
* checks if the desired runpath exists, this logic does a more |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
653 |
* comprehensive check. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
654 |
*/ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
655 |
if (runpath != NULL && |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
656 |
JLI_StrNCmp(newpath, runpath, JLI_StrLen(newpath)) == 0 && |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
657 |
(runpath[JLI_StrLen(newpath)] == 0 || runpath[JLI_StrLen(newpath)] == ':') && |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
658 |
(running == wanted) /* data model does not have to be changed */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
659 |
#ifdef __solaris__ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
660 |
&& (dmpath == NULL) /* data model specific variables not set */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
661 |
#endif |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
662 |
) { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
663 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
664 |
return; |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
665 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
666 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
667 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
668 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
669 |
/* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
670 |
* Place the desired environment setting onto the prefix of |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
671 |
* LD_LIBRARY_PATH. Note that this prevents any possible infinite |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
672 |
* loop of execv() because we test for the prefix, above. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
673 |
*/ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
674 |
if (runpath != 0) { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
675 |
JLI_StrCat(new_runpath, ":"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
676 |
JLI_StrCat(new_runpath, runpath); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
677 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
678 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
679 |
if (putenv(new_runpath) != 0) { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
680 |
exit(1); /* problem allocating memory; LD_LIBRARY_PATH not set |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
681 |
properly */ |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
682 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
683 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
684 |
/* |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
685 |
* Unix systems document that they look at LD_LIBRARY_PATH only |
84d85c90d5db
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changeset
|
686 |
* once at startup, so we have to re-exec the current executable |
84d85c90d5db
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changeset
|
687 |
* to get the changed environment variable to have an effect. |
84d85c90d5db
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diff
changeset
|
688 |
*/ |
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parents:
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diff
changeset
|
689 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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changeset
|
690 |
#ifdef __solaris__ |
84d85c90d5db
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diff
changeset
|
691 |
/* |
84d85c90d5db
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diff
changeset
|
692 |
* If dmpath is not NULL, remove the data model specific string |
84d85c90d5db
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parents:
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diff
changeset
|
693 |
* in the environment for the exec'ed child. |
84d85c90d5db
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diff
changeset
|
694 |
*/ |
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changeset
|
695 |
if (dmpath != NULL) |
84d85c90d5db
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changeset
|
696 |
(void)UnsetEnv((wanted == 32) ? "LD_LIBRARY_PATH_32" : "LD_LIBRARY_PATH_64"); |
84d85c90d5db
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diff
changeset
|
697 |
#endif |
84d85c90d5db
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parents:
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diff
changeset
|
698 |
|
84d85c90d5db
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parents:
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diff
changeset
|
699 |
newenvp = environ; |
2 | 700 |
} |
9244
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changeset
|
701 |
#endif /* SETENV_REQUIRED */ |
84d85c90d5db
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changeset
|
702 |
{ |
84d85c90d5db
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parents:
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diff
changeset
|
703 |
char *newexec = execname; |
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diff
changeset
|
704 |
#ifdef DUAL_MODE |
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diff
changeset
|
705 |
/* |
84d85c90d5db
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parents:
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diff
changeset
|
706 |
* If the data model is being changed, the path to the |
84d85c90d5db
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parents:
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changeset
|
707 |
* executable must be updated accordingly; the executable name |
84d85c90d5db
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parents:
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diff
changeset
|
708 |
* and directory the executable resides in are separate. In the |
84d85c90d5db
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parents:
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diff
changeset
|
709 |
* case of 32 => 64, the new bits are assumed to reside in, e.g. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
7028
diff
changeset
|
710 |
* "olddir/LIBARCH64NAME/execname"; in the case of 64 => 32, |
84d85c90d5db
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parents:
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diff
changeset
|
711 |
* the bits are assumed to be in "olddir/../execname". For example, |
84d85c90d5db
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parents:
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diff
changeset
|
712 |
* |
84d85c90d5db
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parents:
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diff
changeset
|
713 |
* olddir/sparcv9/execname |
84d85c90d5db
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parents:
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diff
changeset
|
714 |
* olddir/amd64/execname |
84d85c90d5db
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diff
changeset
|
715 |
* |
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parents:
7028
diff
changeset
|
716 |
* for Solaris SPARC and Linux amd64, respectively. |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
717 |
*/ |
84d85c90d5db
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parents:
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diff
changeset
|
718 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
719 |
if (running != wanted) { |
84d85c90d5db
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parents:
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diff
changeset
|
720 |
char *oldexec = JLI_StrCpy(JLI_MemAlloc(JLI_StrLen(execname) + 1), execname); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
721 |
char *olddir = oldexec; |
84d85c90d5db
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parents:
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diff
changeset
|
722 |
char *oldbase = JLI_StrRChr(oldexec, '/'); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
723 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
7028
diff
changeset
|
724 |
|
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
725 |
newexec = JLI_MemAlloc(JLI_StrLen(execname) + 20); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
726 |
*oldbase++ = 0; |
84d85c90d5db
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parents:
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diff
changeset
|
727 |
sprintf(newexec, "%s/%s/%s", olddir, |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
728 |
((wanted == 64) ? LIBARCH64NAME : ".."), oldbase); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
729 |
argv[0] = newexec; |
84d85c90d5db
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ksrini
parents:
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diff
changeset
|
730 |
} |
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diff
changeset
|
731 |
#endif /* DUAL_MODE */ |
84d85c90d5db
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diff
changeset
|
732 |
JLI_TraceLauncher("TRACER_MARKER:About to EXEC\n"); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
733 |
(void) fflush(stdout); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
734 |
(void) fflush(stderr); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
735 |
#ifdef SETENV_REQUIRED |
84d85c90d5db
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parents:
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diff
changeset
|
736 |
if (mustsetenv) { |
84d85c90d5db
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parents:
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diff
changeset
|
737 |
execve(newexec, argv, newenvp); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
738 |
} else { |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
739 |
execv(newexec, argv); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
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diff
changeset
|
740 |
} |
84d85c90d5db
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parents:
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diff
changeset
|
741 |
#else |
84d85c90d5db
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parents:
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diff
changeset
|
742 |
execv(newexec, argv); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
743 |
#endif /* SETENV_REQUIRED */ |
84d85c90d5db
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diff
changeset
|
744 |
JLI_ReportErrorMessageSys(JRE_ERROR4, newexec); |
2 | 745 |
|
746 |
#ifdef DUAL_MODE |
|
9244
84d85c90d5db
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diff
changeset
|
747 |
if (running != wanted) { |
84d85c90d5db
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parents:
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diff
changeset
|
748 |
JLI_ReportErrorMessage(JRE_ERROR5, wanted, running); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
749 |
#ifdef __solaris__ |
84d85c90d5db
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parents:
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diff
changeset
|
750 |
#ifdef __sparc |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
751 |
JLI_ReportErrorMessage(JRE_ERROR6); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
ksrini
parents:
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diff
changeset
|
752 |
#else |
84d85c90d5db
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diff
changeset
|
753 |
JLI_ReportErrorMessage(JRE_ERROR7); |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
754 |
#endif /* __sparc */ |
84d85c90d5db
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parents:
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diff
changeset
|
755 |
} |
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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parents:
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diff
changeset
|
756 |
#endif /* __solaris__ */ |
84d85c90d5db
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parents:
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diff
changeset
|
757 |
#endif /* DUAL_MODE */ |
84d85c90d5db
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parents:
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diff
changeset
|
758 |
|
2 | 759 |
} |
9244
84d85c90d5db
7029048: (launcher) fence the launcher against LD_LIBRARY_PATH
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changeset
|
760 |
exit(1); |
2 | 761 |
} |
762 |
} |
|
763 |
||
764 |
/* |
|
765 |
* On Solaris VM choosing is done by the launcher (java.c). |
|
766 |
*/ |
|
767 |
static jboolean |
|
768 |
GetJVMPath(const char *jrepath, const char *jvmtype, |
|
769 |
char *jvmpath, jint jvmpathsize, const char * arch) |
|
770 |
{ |
|
771 |
struct stat s; |
|
772 |
||
773 |
if (JLI_StrChr(jvmtype, '/')) { |
|
6005 | 774 |
JLI_Snprintf(jvmpath, jvmpathsize, "%s/" JVM_DLL, jvmtype); |
2 | 775 |
} else { |
6005 | 776 |
JLI_Snprintf(jvmpath, jvmpathsize, "%s/lib/%s/%s/" JVM_DLL, jrepath, arch, jvmtype); |
2 | 777 |
} |
778 |
||
779 |
JLI_TraceLauncher("Does `%s' exist ... ", jvmpath); |
|
780 |
||
781 |
if (stat(jvmpath, &s) == 0) { |
|
782 |
JLI_TraceLauncher("yes.\n"); |
|
783 |
return JNI_TRUE; |
|
784 |
} else { |
|
785 |
JLI_TraceLauncher("no.\n"); |
|
786 |
return JNI_FALSE; |
|
787 |
} |
|
788 |
} |
|
789 |
||
790 |
/* |
|
791 |
* Find path to JRE based on .exe's location or registry settings. |
|
792 |
*/ |
|
793 |
static jboolean |
|
794 |
GetJREPath(char *path, jint pathsize, const char * arch, jboolean speculative) |
|
795 |
{ |
|
796 |
char libjava[MAXPATHLEN]; |
|
797 |
||
798 |
if (GetApplicationHome(path, pathsize)) { |
|
799 |
/* Is JRE co-located with the application? */ |
|
6005 | 800 |
JLI_Snprintf(libjava, sizeof(libjava), "%s/lib/%s/" JAVA_DLL, path, arch); |
2 | 801 |
if (access(libjava, F_OK) == 0) { |
6005 | 802 |
JLI_TraceLauncher("JRE path is %s\n", path); |
803 |
return JNI_TRUE; |
|
2 | 804 |
} |
805 |
||
806 |
/* Does the app ship a private JRE in <apphome>/jre directory? */ |
|
6005 | 807 |
JLI_Snprintf(libjava, sizeof(libjava), "%s/jre/lib/%s/" JAVA_DLL, path, arch); |
2 | 808 |
if (access(libjava, F_OK) == 0) { |
809 |
JLI_StrCat(path, "/jre"); |
|
6005 | 810 |
JLI_TraceLauncher("JRE path is %s\n", path); |
811 |
return JNI_TRUE; |
|
2 | 812 |
} |
813 |
} |
|
814 |
||
815 |
if (!speculative) |
|
1145
404b11752c57
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parents:
715
diff
changeset
|
816 |
JLI_ReportErrorMessage(JRE_ERROR8 JAVA_DLL); |
2 | 817 |
return JNI_FALSE; |
818 |
} |
|
819 |
||
820 |
jboolean |
|
821 |
LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn) |
|
822 |
{ |
|
823 |
void *libjvm; |
|
824 |
||
825 |
JLI_TraceLauncher("JVM path is %s\n", jvmpath); |
|
826 |
||
827 |
libjvm = dlopen(jvmpath, RTLD_NOW + RTLD_GLOBAL); |
|
828 |
if (libjvm == NULL) { |
|
829 |
#if defined(__solaris__) && defined(__sparc) && !defined(_LP64) /* i.e. 32-bit sparc */ |
|
830 |
FILE * fp; |
|
831 |
Elf32_Ehdr elf_head; |
|
832 |
int count; |
|
833 |
int location; |
|
834 |
||
835 |
fp = fopen(jvmpath, "r"); |
|
6005 | 836 |
if (fp == NULL) { |
837 |
JLI_ReportErrorMessage(DLL_ERROR2, jvmpath, dlerror()); |
|
838 |
return JNI_FALSE; |
|
839 |
} |
|
2 | 840 |
|
841 |
/* read in elf header */ |
|
842 |
count = fread((void*)(&elf_head), sizeof(Elf32_Ehdr), 1, fp); |
|
843 |
fclose(fp); |
|
6005 | 844 |
if (count < 1) { |
845 |
JLI_ReportErrorMessage(DLL_ERROR2, jvmpath, dlerror()); |
|
846 |
return JNI_FALSE; |
|
847 |
} |
|
2 | 848 |
|
849 |
/* |
|
850 |
* Check for running a server vm (compiled with -xarch=v8plus) |
|
851 |
* on a stock v8 processor. In this case, the machine type in |
|
852 |
* the elf header would not be included the architecture list |
|
853 |
* provided by the isalist command, which is turn is gotten from |
|
854 |
* sysinfo. This case cannot occur on 64-bit hardware and thus |
|
855 |
* does not have to be checked for in binaries with an LP64 data |
|
856 |
* model. |
|
857 |
*/ |
|
6005 | 858 |
if (elf_head.e_machine == EM_SPARC32PLUS) { |
2 | 859 |
char buf[257]; /* recommended buffer size from sysinfo man |
860 |
page */ |
|
861 |
long length; |
|
862 |
char* location; |
|
863 |
||
864 |
length = sysinfo(SI_ISALIST, buf, 257); |
|
6005 | 865 |
if (length > 0) { |
866 |
location = JLI_StrStr(buf, "sparcv8plus "); |
|
867 |
if (location == NULL) { |
|
1145
404b11752c57
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715
diff
changeset
|
868 |
JLI_ReportErrorMessage(JVM_ERROR3); |
2 | 869 |
return JNI_FALSE; |
870 |
} |
|
871 |
} |
|
872 |
} |
|
873 |
#endif |
|
6005 | 874 |
JLI_ReportErrorMessage(DLL_ERROR1, __LINE__); |
875 |
JLI_ReportErrorMessage(DLL_ERROR2, jvmpath, dlerror()); |
|
876 |
return JNI_FALSE; |
|
2 | 877 |
} |
878 |
||
879 |
ifn->CreateJavaVM = (CreateJavaVM_t) |
|
6005 | 880 |
dlsym(libjvm, "JNI_CreateJavaVM"); |
881 |
if (ifn->CreateJavaVM == NULL) { |
|
882 |
JLI_ReportErrorMessage(DLL_ERROR2, jvmpath, dlerror()); |
|
883 |
return JNI_FALSE; |
|
884 |
} |
|
2 | 885 |
|
886 |
ifn->GetDefaultJavaVMInitArgs = (GetDefaultJavaVMInitArgs_t) |
|
887 |
dlsym(libjvm, "JNI_GetDefaultJavaVMInitArgs"); |
|
6005 | 888 |
if (ifn->GetDefaultJavaVMInitArgs == NULL) { |
889 |
JLI_ReportErrorMessage(DLL_ERROR2, jvmpath, dlerror()); |
|
890 |
return JNI_FALSE; |
|
891 |
} |
|
2 | 892 |
|
893 |
return JNI_TRUE; |
|
894 |
} |
|
895 |
||
896 |
/* |
|
897 |
* If app is "/foo/bin/javac", or "/foo/bin/sparcv9/javac" then put |
|
898 |
* "/foo" into buf. |
|
899 |
*/ |
|
900 |
jboolean |
|
901 |
GetApplicationHome(char *buf, jint bufsize) |
|
902 |
{ |
|
903 |
if (execname != NULL) { |
|
6535
77ffd0e75bfb
6390477: (launcher) replace unsafe usages of sprintf with snprintf
ksrini
parents:
6005
diff
changeset
|
904 |
JLI_Snprintf(buf, bufsize, "%s", execname); |
2 | 905 |
buf[bufsize-1] = '\0'; |
906 |
} else { |
|
907 |
return JNI_FALSE; |
|
908 |
} |
|
909 |
||
910 |
if (JLI_StrRChr(buf, '/') == 0) { |
|
911 |
buf[0] = '\0'; |
|
912 |
return JNI_FALSE; |
|
913 |
} |
|
914 |
*(JLI_StrRChr(buf, '/')) = '\0'; /* executable file */ |
|
915 |
if (JLI_StrLen(buf) < 4 || JLI_StrRChr(buf, '/') == 0) { |
|
916 |
buf[0] = '\0'; |
|
917 |
return JNI_FALSE; |
|
918 |
} |
|
919 |
if (JLI_StrCmp("/bin", buf + JLI_StrLen(buf) - 4) != 0) |
|
920 |
*(JLI_StrRChr(buf, '/')) = '\0'; /* sparcv9 or amd64 */ |
|
921 |
if (JLI_StrLen(buf) < 4 || JLI_StrCmp("/bin", buf + JLI_StrLen(buf) - 4) != 0) { |
|
922 |
buf[0] = '\0'; |
|
923 |
return JNI_FALSE; |
|
924 |
} |
|
925 |
*(JLI_StrRChr(buf, '/')) = '\0'; /* bin */ |
|
926 |
||
927 |
return JNI_TRUE; |
|
928 |
} |
|
929 |
||
930 |
||
931 |
/* |
|
932 |
* Return true if the named program exists |
|
933 |
*/ |
|
934 |
static int |
|
935 |
ProgramExists(char *name) |
|
936 |
{ |
|
937 |
struct stat sb; |
|
938 |
if (stat(name, &sb) != 0) return 0; |
|
939 |
if (S_ISDIR(sb.st_mode)) return 0; |
|
940 |
return (sb.st_mode & S_IEXEC) != 0; |
|
941 |
} |
|
942 |
||
943 |
||
944 |
/* |
|
945 |
* Find a command in a directory, returning the path. |
|
946 |
*/ |
|
947 |
static char * |
|
948 |
Resolve(char *indir, char *cmd) |
|
949 |
{ |
|
950 |
char name[PATH_MAX + 2], *real; |
|
951 |
||
952 |
if ((JLI_StrLen(indir) + JLI_StrLen(cmd) + 1) > PATH_MAX) return 0; |
|
6005 | 953 |
JLI_Snprintf(name, sizeof(name), "%s%c%s", indir, FILE_SEPARATOR, cmd); |
2 | 954 |
if (!ProgramExists(name)) return 0; |
955 |
real = JLI_MemAlloc(PATH_MAX + 2); |
|
956 |
if (!realpath(name, real)) |
|
957 |
JLI_StrCpy(real, name); |
|
958 |
return real; |
|
959 |
} |
|
960 |
||
961 |
||
962 |
/* |
|
963 |
* Find a path for the executable |
|
964 |
*/ |
|
965 |
static char * |
|
966 |
FindExecName(char *program) |
|
967 |
{ |
|
968 |
char cwdbuf[PATH_MAX+2]; |
|
969 |
char *path; |
|
970 |
char *tmp_path; |
|
971 |
char *f; |
|
972 |
char *result = NULL; |
|
973 |
||
974 |
/* absolute path? */ |
|
975 |
if (*program == FILE_SEPARATOR || |
|
976 |
(FILE_SEPARATOR=='\\' && JLI_StrRChr(program, ':'))) |
|
977 |
return Resolve("", program+1); |
|
978 |
||
979 |
/* relative path? */ |
|
980 |
if (JLI_StrRChr(program, FILE_SEPARATOR) != 0) { |
|
981 |
char buf[PATH_MAX+2]; |
|
982 |
return Resolve(getcwd(cwdbuf, sizeof(cwdbuf)), program); |
|
983 |
} |
|
984 |
||
985 |
/* from search path? */ |
|
986 |
path = getenv("PATH"); |
|
987 |
if (!path || !*path) path = "."; |
|
988 |
tmp_path = JLI_MemAlloc(JLI_StrLen(path) + 2); |
|
989 |
JLI_StrCpy(tmp_path, path); |
|
990 |
||
991 |
for (f=tmp_path; *f && result==0; ) { |
|
992 |
char *s = f; |
|
993 |
while (*f && (*f != PATH_SEPARATOR)) ++f; |
|
994 |
if (*f) *f++ = 0; |
|
995 |
if (*s == FILE_SEPARATOR) |
|
996 |
result = Resolve(s, program); |
|
997 |
else { |
|
998 |
/* relative path element */ |
|
999 |
char dir[2*PATH_MAX]; |
|
6005 | 1000 |
JLI_Snprintf(dir, sizeof(dir), "%s%c%s", getcwd(cwdbuf, sizeof(cwdbuf)), |
2 | 1001 |
FILE_SEPARATOR, s); |
1002 |
result = Resolve(dir, program); |
|
1003 |
} |
|
1004 |
if (result != 0) break; |
|
1005 |
} |
|
1006 |
||
1007 |
JLI_MemFree(tmp_path); |
|
1008 |
return result; |
|
1009 |
} |
|
1010 |
||
1011 |
||
1012 |
||
1013 |
/* |
|
1014 |
* Compute the name of the executable |
|
1015 |
* |
|
1016 |
* In order to re-exec securely we need the absolute path of the |
|
1017 |
* executable. On Solaris getexecname(3c) may not return an absolute |
|
1018 |
* path so we use dladdr to get the filename of the executable and |
|
1019 |
* then use realpath to derive an absolute path. From Solaris 9 |
|
1020 |
* onwards the filename returned in DL_info structure from dladdr is |
|
1021 |
* an absolute pathname so technically realpath isn't required. |
|
1022 |
* On Linux we read the executable name from /proc/self/exe. |
|
1023 |
* As a fallback, and for platforms other than Solaris and Linux, |
|
1024 |
* we use FindExecName to compute the executable name. |
|
1025 |
*/ |
|
1026 |
static const char* |
|
1027 |
SetExecname(char **argv) |
|
1028 |
{ |
|
1029 |
char* exec_path = NULL; |
|
1030 |
#if defined(__solaris__) |
|
1031 |
{ |
|
1032 |
Dl_info dlinfo; |
|
1033 |
int (*fptr)(); |
|
1034 |
||
1035 |
fptr = (int (*)())dlsym(RTLD_DEFAULT, "main"); |
|
1036 |
if (fptr == NULL) { |
|
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1037 |
JLI_ReportErrorMessage(DLL_ERROR3, dlerror()); |
2 | 1038 |
return JNI_FALSE; |
1039 |
} |
|
1040 |
||
1041 |
if (dladdr((void*)fptr, &dlinfo)) { |
|
1042 |
char *resolved = (char*)JLI_MemAlloc(PATH_MAX+1); |
|
1043 |
if (resolved != NULL) { |
|
1044 |
exec_path = realpath(dlinfo.dli_fname, resolved); |
|
1045 |
if (exec_path == NULL) { |
|
1046 |
JLI_MemFree(resolved); |
|
1047 |
} |
|
1048 |
} |
|
1049 |
} |
|
1050 |
} |
|
1051 |
#elif defined(__linux__) |
|
1052 |
{ |
|
1053 |
const char* self = "/proc/self/exe"; |
|
1054 |
char buf[PATH_MAX+1]; |
|
1055 |
int len = readlink(self, buf, PATH_MAX); |
|
1056 |
if (len >= 0) { |
|
1057 |
buf[len] = '\0'; /* readlink doesn't nul terminate */ |
|
1058 |
exec_path = JLI_StringDup(buf); |
|
1059 |
} |
|
1060 |
} |
|
1061 |
#else /* !__solaris__ && !__linux */ |
|
1062 |
{ |
|
1063 |
/* Not implemented */ |
|
1064 |
} |
|
1065 |
#endif |
|
1066 |
||
1067 |
if (exec_path == NULL) { |
|
1068 |
exec_path = FindExecName(argv[0]); |
|
1069 |
} |
|
1070 |
execname = exec_path; |
|
1071 |
return exec_path; |
|
1072 |
} |
|
1073 |
||
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
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parents:
715
diff
changeset
|
1074 |
void JLI_ReportErrorMessage(const char* fmt, ...) { |
2 | 1075 |
va_list vl; |
1076 |
va_start(vl, fmt); |
|
1077 |
vfprintf(stderr, fmt, vl); |
|
1078 |
fprintf(stderr, "\n"); |
|
1079 |
va_end(vl); |
|
1080 |
} |
|
1081 |
||
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1082 |
void JLI_ReportErrorMessageSys(const char* fmt, ...) { |
2 | 1083 |
va_list vl; |
1084 |
char *emsg; |
|
1085 |
||
1086 |
/* |
|
1087 |
* TODO: its safer to use strerror_r but is not available on |
|
1088 |
* Solaris 8. Until then.... |
|
1089 |
*/ |
|
1090 |
emsg = strerror(errno); |
|
1091 |
if (emsg != NULL) { |
|
1092 |
fprintf(stderr, "%s\n", emsg); |
|
1093 |
} |
|
1094 |
||
1095 |
va_start(vl, fmt); |
|
1096 |
vfprintf(stderr, fmt, vl); |
|
1097 |
fprintf(stderr, "\n"); |
|
1098 |
va_end(vl); |
|
1099 |
} |
|
1100 |
||
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1101 |
void JLI_ReportExceptionDescription(JNIEnv * env) { |
2 | 1102 |
(*env)->ExceptionDescribe(env); |
1103 |
} |
|
1104 |
||
1105 |
/* |
|
1106 |
* Since using the file system as a registry is a bit risky, perform |
|
1107 |
* additional sanity checks on the identified directory to validate |
|
1108 |
* it as a valid jre/sdk. |
|
1109 |
* |
|
1110 |
* Return 0 if the tests fail; otherwise return non-zero (true). |
|
1111 |
* |
|
1112 |
* Note that checking for anything more than the existence of an |
|
1113 |
* executable object at bin/java relative to the path being checked |
|
1114 |
* will break the regression tests. |
|
1115 |
*/ |
|
1116 |
static int |
|
1117 |
CheckSanity(char *path, char *dir) |
|
1118 |
{ |
|
1119 |
char buffer[PATH_MAX]; |
|
1120 |
||
1121 |
if (JLI_StrLen(path) + JLI_StrLen(dir) + 11 > PATH_MAX) |
|
1122 |
return (0); /* Silently reject "impossibly" long paths */ |
|
1123 |
||
6005 | 1124 |
JLI_Snprintf(buffer, sizeof(buffer), "%s/%s/bin/java", path, dir); |
2 | 1125 |
return ((access(buffer, X_OK) == 0) ? 1 : 0); |
1126 |
} |
|
1127 |
||
1128 |
/* |
|
1129 |
* Determine if there is an acceptable JRE in the directory dirname. |
|
1130 |
* Upon locating the "best" one, return a fully qualified path to |
|
1131 |
* it. "Best" is defined as the most advanced JRE meeting the |
|
1132 |
* constraints contained in the manifest_info. If no JRE in this |
|
1133 |
* directory meets the constraints, return NULL. |
|
1134 |
* |
|
1135 |
* Note that we don't check for errors in reading the directory |
|
1136 |
* (which would be done by checking errno). This is because it |
|
1137 |
* doesn't matter if we get an error reading the directory, or |
|
1138 |
* we just don't find anything interesting in the directory. We |
|
1139 |
* just return NULL in either case. |
|
1140 |
* |
|
1141 |
* The historical names of j2sdk and j2re were changed to jdk and |
|
1142 |
* jre respecively as part of the 1.5 rebranding effort. Since the |
|
1143 |
* former names are legacy on Linux, they must be recognized for |
|
1144 |
* all time. Fortunately, this is a minor cost. |
|
1145 |
*/ |
|
1146 |
static char |
|
1147 |
*ProcessDir(manifest_info *info, char *dirname) |
|
1148 |
{ |
|
1149 |
DIR *dirp; |
|
1150 |
struct dirent *dp; |
|
1151 |
char *best = NULL; |
|
1152 |
int offset; |
|
1153 |
int best_offset = 0; |
|
1154 |
char *ret_str = NULL; |
|
1155 |
char buffer[PATH_MAX]; |
|
1156 |
||
1157 |
if ((dirp = opendir(dirname)) == NULL) |
|
1158 |
return (NULL); |
|
1159 |
||
1160 |
do { |
|
1161 |
if ((dp = readdir(dirp)) != NULL) { |
|
1162 |
offset = 0; |
|
1163 |
if ((JLI_StrNCmp(dp->d_name, "jre", 3) == 0) || |
|
1164 |
(JLI_StrNCmp(dp->d_name, "jdk", 3) == 0)) |
|
1165 |
offset = 3; |
|
1166 |
else if (JLI_StrNCmp(dp->d_name, "j2re", 4) == 0) |
|
1167 |
offset = 4; |
|
1168 |
else if (JLI_StrNCmp(dp->d_name, "j2sdk", 5) == 0) |
|
1169 |
offset = 5; |
|
1170 |
if (offset > 0) { |
|
1171 |
if ((JLI_AcceptableRelease(dp->d_name + offset, |
|
1172 |
info->jre_version)) && CheckSanity(dirname, dp->d_name)) |
|
1173 |
if ((best == NULL) || (JLI_ExactVersionId( |
|
1174 |
dp->d_name + offset, best + best_offset) > 0)) { |
|
1175 |
if (best != NULL) |
|
1176 |
JLI_MemFree(best); |
|
1177 |
best = JLI_StringDup(dp->d_name); |
|
1178 |
best_offset = offset; |
|
1179 |
} |
|
1180 |
} |
|
1181 |
} |
|
1182 |
} while (dp != NULL); |
|
1183 |
(void) closedir(dirp); |
|
1184 |
if (best == NULL) |
|
1185 |
return (NULL); |
|
1186 |
else { |
|
1187 |
ret_str = JLI_MemAlloc(JLI_StrLen(dirname) + JLI_StrLen(best) + 2); |
|
1188 |
sprintf(ret_str, "%s/%s", dirname, best); |
|
1189 |
JLI_MemFree(best); |
|
1190 |
return (ret_str); |
|
1191 |
} |
|
1192 |
} |
|
1193 |
||
1194 |
/* |
|
1195 |
* This is the global entry point. It examines the host for the optimal |
|
1196 |
* JRE to be used by scanning a set of directories. The set of directories |
|
1197 |
* is platform dependent and can be overridden by the environment |
|
1198 |
* variable JAVA_VERSION_PATH. |
|
1199 |
* |
|
1200 |
* This routine itself simply determines the set of appropriate |
|
1201 |
* directories before passing control onto ProcessDir(). |
|
1202 |
*/ |
|
1203 |
char* |
|
1204 |
LocateJRE(manifest_info* info) |
|
1205 |
{ |
|
1206 |
char *path; |
|
1207 |
char *home; |
|
1208 |
char *target = NULL; |
|
1209 |
char *dp; |
|
1210 |
char *cp; |
|
1211 |
||
1212 |
/* |
|
1213 |
* Start by getting JAVA_VERSION_PATH |
|
1214 |
*/ |
|
1215 |
if (info->jre_restrict_search) { |
|
1216 |
path = JLI_StringDup(system_dir); |
|
1217 |
} else if ((path = getenv("JAVA_VERSION_PATH")) != NULL) { |
|
1218 |
path = JLI_StringDup(path); |
|
1219 |
} else { |
|
1220 |
if ((home = getenv("HOME")) != NULL) { |
|
1221 |
path = (char *)JLI_MemAlloc(JLI_StrLen(home) + \ |
|
1222 |
JLI_StrLen(system_dir) + JLI_StrLen(user_dir) + 2); |
|
1223 |
sprintf(path, "%s%s:%s", home, user_dir, system_dir); |
|
1224 |
} else { |
|
1225 |
path = JLI_StringDup(system_dir); |
|
1226 |
} |
|
1227 |
} |
|
1228 |
||
1229 |
/* |
|
1230 |
* Step through each directory on the path. Terminate the scan with |
|
1231 |
* the first directory with an acceptable JRE. |
|
1232 |
*/ |
|
1233 |
cp = dp = path; |
|
1234 |
while (dp != NULL) { |
|
1235 |
cp = JLI_StrChr(dp, (int)':'); |
|
1236 |
if (cp != NULL) |
|
7028
adadd244f506
6989469: (launcher) compiler warnings in jli native code
ksrini
parents:
6535
diff
changeset
|
1237 |
*cp = '\0'; |
2 | 1238 |
if ((target = ProcessDir(info, dp)) != NULL) |
1239 |
break; |
|
1240 |
dp = cp; |
|
1241 |
if (dp != NULL) |
|
1242 |
dp++; |
|
1243 |
} |
|
1244 |
JLI_MemFree(path); |
|
1245 |
return (target); |
|
1246 |
} |
|
1247 |
||
1248 |
/* |
|
1249 |
* Given a path to a jre to execute, this routine checks if this process |
|
1250 |
* is indeed that jre. If not, it exec's that jre. |
|
1251 |
* |
|
1252 |
* We want to actually check the paths rather than just the version string |
|
1253 |
* built into the executable, so that given version specification (and |
|
1254 |
* JAVA_VERSION_PATH) will yield the exact same Java environment, regardless |
|
1255 |
* of the version of the arbitrary launcher we start with. |
|
1256 |
*/ |
|
1257 |
void |
|
1258 |
ExecJRE(char *jre, char **argv) |
|
1259 |
{ |
|
1260 |
char wanted[PATH_MAX]; |
|
1261 |
const char* progname = GetProgramName(); |
|
1262 |
||
1263 |
/* |
|
1264 |
* Resolve the real path to the directory containing the selected JRE. |
|
1265 |
*/ |
|
1266 |
if (realpath(jre, wanted) == NULL) { |
|
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1267 |
JLI_ReportErrorMessage(JRE_ERROR9, jre); |
2 | 1268 |
exit(1); |
1269 |
} |
|
1270 |
||
1271 |
/* |
|
1272 |
* Resolve the real path to the currently running launcher. |
|
1273 |
*/ |
|
1274 |
SetExecname(argv); |
|
1275 |
if (execname == NULL) { |
|
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1276 |
JLI_ReportErrorMessage(JRE_ERROR10); |
2 | 1277 |
exit(1); |
1278 |
} |
|
1279 |
||
1280 |
/* |
|
1281 |
* If the path to the selected JRE directory is a match to the initial |
|
1282 |
* portion of the path to the currently executing JRE, we have a winner! |
|
1283 |
* If so, just return. |
|
1284 |
*/ |
|
1285 |
if (JLI_StrNCmp(wanted, execname, JLI_StrLen(wanted)) == 0) |
|
1286 |
return; /* I am the droid you were looking for */ |
|
1287 |
||
1288 |
||
1289 |
/* |
|
1290 |
* This should never happen (because of the selection code in SelectJRE), |
|
1291 |
* but check for "impossibly" long path names just because buffer overruns |
|
1292 |
* can be so deadly. |
|
1293 |
*/ |
|
1294 |
if (JLI_StrLen(wanted) + JLI_StrLen(progname) + 6 > PATH_MAX) { |
|
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1295 |
JLI_ReportErrorMessage(JRE_ERROR11); |
2 | 1296 |
exit(1); |
1297 |
} |
|
1298 |
||
1299 |
/* |
|
1300 |
* Construct the path and exec it. |
|
1301 |
*/ |
|
1302 |
(void)JLI_StrCat(JLI_StrCat(wanted, "/bin/"), progname); |
|
1303 |
argv[0] = JLI_StringDup(progname); |
|
1304 |
if (JLI_IsTraceLauncher()) { |
|
1305 |
int i; |
|
1306 |
printf("ReExec Command: %s (%s)\n", wanted, argv[0]); |
|
1307 |
printf("ReExec Args:"); |
|
1308 |
for (i = 1; argv[i] != NULL; i++) |
|
1309 |
printf(" %s", argv[i]); |
|
1310 |
printf("\n"); |
|
1311 |
} |
|
4340
ec6ba551fa78
6367077: Purge LD_LIBRARY_PATH usage from the launcher
ksrini
parents:
3834
diff
changeset
|
1312 |
JLI_TraceLauncher("TRACER_MARKER:About to EXEC\n"); |
2 | 1313 |
(void)fflush(stdout); |
1314 |
(void)fflush(stderr); |
|
1315 |
execv(wanted, argv); |
|
1145
404b11752c57
6685121: (launcher) make ReportErrorMessages accessible by other launcher subsystems
ksrini
parents:
715
diff
changeset
|
1316 |
JLI_ReportErrorMessageSys(JRE_ERROR12, wanted); |
2 | 1317 |
exit(1); |
1318 |
} |
|
1319 |
||
1320 |
/* |
|
1321 |
* "Borrowed" from Solaris 10 where the unsetenv() function is being added |
|
1322 |
* to libc thanks to SUSv3 (Standard Unix Specification, version 3). As |
|
1323 |
* such, in the fullness of time this will appear in libc on all relevant |
|
1324 |
* Solaris/Linux platforms and maybe even the Windows platform. At that |
|
1325 |
* time, this stub can be removed. |
|
1326 |
* |
|
1327 |
* This implementation removes the environment locking for multithreaded |
|
1328 |
* applications. (We don't have access to these mutexes within libc and |
|
1329 |
* the launcher isn't multithreaded.) Note that what remains is platform |
|
1330 |
* independent, because it only relies on attributes that a POSIX environment |
|
1331 |
* defines. |
|
1332 |
* |
|
1333 |
* Returns 0 on success, -1 on failure. |
|
1334 |
* |
|
1335 |
* Also removed was the setting of errno. The only value of errno set |
|
1336 |
* was EINVAL ("Invalid Argument"). |
|
1337 |
*/ |
|
1338 |
||
1339 |
/* |
|
1340 |
* s1(environ) is name=value |
|
1341 |
* s2(name) is name(not the form of name=value). |
|
1342 |
* if names match, return value of 1, else return 0 |
|
1343 |
*/ |
|
1344 |
static int |
|
1345 |
match_noeq(const char *s1, const char *s2) |
|
1346 |
{ |
|
1347 |
while (*s1 == *s2++) { |
|
1348 |
if (*s1++ == '=') |
|
1349 |
return (1); |
|
1350 |
} |
|
1351 |
if (*s1 == '=' && s2[-1] == '\0') |
|
1352 |
return (1); |
|
1353 |
return (0); |
|
1354 |
} |
|
1355 |
||
1356 |
/* |
|
1357 |
* added for SUSv3 standard |
|
1358 |
* |
|
1359 |
* Delete entry from environ. |
|
1360 |
* Do not free() memory! Other threads may be using it. |
|
1361 |
* Keep it around forever. |
|
1362 |
*/ |
|
1363 |
static int |
|
1364 |
borrowed_unsetenv(const char *name) |
|
1365 |
{ |
|
1366 |
long idx; /* index into environ */ |
|
1367 |
||
1368 |
if (name == NULL || *name == '\0' || |
|
1369 |
JLI_StrChr(name, '=') != NULL) { |
|
1370 |
return (-1); |
|
1371 |
} |
|
1372 |
||
1373 |
for (idx = 0; environ[idx] != NULL; idx++) { |
|
1374 |
if (match_noeq(environ[idx], name)) |
|
1375 |
break; |
|
1376 |
} |
|
1377 |
if (environ[idx] == NULL) { |
|
1378 |
/* name not found but still a success */ |
|
1379 |
return (0); |
|
1380 |
} |
|
1381 |
/* squeeze up one entry */ |
|
1382 |
do { |
|
1383 |
environ[idx] = environ[idx+1]; |
|
1384 |
} while (environ[++idx] != NULL); |
|
1385 |
||
1386 |
return (0); |
|
1387 |
} |
|
1388 |
/* --- End of "borrowed" code --- */ |
|
1389 |
||
1390 |
/* |
|
1391 |
* Wrapper for unsetenv() function. |
|
1392 |
*/ |
|
1393 |
int |
|
1394 |
UnsetEnv(char *name) |
|
1395 |
{ |
|
1396 |
return(borrowed_unsetenv(name)); |
|
1397 |
} |
|
1398 |
||
1399 |
/* --- Splash Screen shared library support --- */ |
|
1400 |
||
1401 |
static const char* SPLASHSCREEN_SO = "libsplashscreen.so"; |
|
1402 |
||
1403 |
static void* hSplashLib = NULL; |
|
1404 |
||
1405 |
void* SplashProcAddress(const char* name) { |
|
1406 |
if (!hSplashLib) { |
|
1407 |
hSplashLib = dlopen(SPLASHSCREEN_SO, RTLD_LAZY | RTLD_GLOBAL); |
|
1408 |
} |
|
1409 |
if (hSplashLib) { |
|
1410 |
void* sym = dlsym(hSplashLib, name); |
|
1411 |
return sym; |
|
1412 |
} else { |
|
1413 |
return NULL; |
|
1414 |
} |
|
1415 |
} |
|
1416 |
||
1417 |
void SplashFreeLibrary() { |
|
1418 |
if (hSplashLib) { |
|
1419 |
dlclose(hSplashLib); |
|
1420 |
hSplashLib = NULL; |
|
1421 |
} |
|
1422 |
} |
|
1423 |
||
1424 |
const char * |
|
1425 |
jlong_format_specifier() { |
|
1426 |
return "%lld"; |
|
1427 |
} |
|
1428 |
||
1429 |
||
1430 |
||
1431 |
/* |
|
1432 |
* Block current thread and continue execution in a new thread |
|
1433 |
*/ |
|
1434 |
int |
|
1435 |
ContinueInNewThread0(int (JNICALL *continuation)(void *), jlong stack_size, void * args) { |
|
1436 |
int rslt; |
|
1437 |
#ifdef __linux__ |
|
1438 |
pthread_t tid; |
|
1439 |
pthread_attr_t attr; |
|
1440 |
pthread_attr_init(&attr); |
|
1441 |
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); |
|
1442 |
||
1443 |
if (stack_size > 0) { |
|
1444 |
pthread_attr_setstacksize(&attr, stack_size); |
|
1445 |
} |
|
1446 |
||
1447 |
if (pthread_create(&tid, &attr, (void *(*)(void*))continuation, (void*)args) == 0) { |
|
1448 |
void * tmp; |
|
1449 |
pthread_join(tid, &tmp); |
|
1450 |
rslt = (int)tmp; |
|
1451 |
} else { |
|
1452 |
/* |
|
1453 |
* Continue execution in current thread if for some reason (e.g. out of |
|
1454 |
* memory/LWP) a new thread can't be created. This will likely fail |
|
1455 |
* later in continuation as JNI_CreateJavaVM needs to create quite a |
|
1456 |
* few new threads, anyway, just give it a try.. |
|
1457 |
*/ |
|
1458 |
rslt = continuation(args); |
|
1459 |
} |
|
1460 |
||
1461 |
pthread_attr_destroy(&attr); |
|
1462 |
#else |
|
1463 |
thread_t tid; |
|
1464 |
long flags = 0; |
|
1465 |
if (thr_create(NULL, stack_size, (void *(*)(void *))continuation, args, flags, &tid) == 0) { |
|
1466 |
void * tmp; |
|
1467 |
thr_join(tid, NULL, &tmp); |
|
1468 |
rslt = (int)tmp; |
|
1469 |
} else { |
|
1470 |
/* See above. Continue in current thread if thr_create() failed */ |
|
1471 |
rslt = continuation(args); |
|
1472 |
} |
|
1473 |
#endif |
|
1474 |
return rslt; |
|
1475 |
} |
|
1476 |
||
1477 |
/* Coarse estimation of number of digits assuming the worst case is a 64-bit pid. */ |
|
1478 |
#define MAX_PID_STR_SZ 20 |
|
1479 |
||
1480 |
void SetJavaLauncherPlatformProps() { |
|
1481 |
/* Linux only */ |
|
1482 |
#ifdef __linux__ |
|
1483 |
const char *substr = "-Dsun.java.launcher.pid="; |
|
1484 |
char *pid_prop_str = (char *)JLI_MemAlloc(JLI_StrLen(substr) + MAX_PID_STR_SZ + 1); |
|
1485 |
sprintf(pid_prop_str, "%s%d", substr, getpid()); |
|
1486 |
AddOption(pid_prop_str, NULL); |
|
1487 |
#endif |
|
1488 |
} |
|
1489 |
||
1490 |
jboolean |
|
1491 |
IsJavaw() |
|
1492 |
{ |
|
1493 |
/* noop on UNIX */ |
|
1494 |
return JNI_FALSE; |
|
1495 |
} |
|
39
560da37936db
6596475: (launcher) javaw should call InitCommonControls
ksrini
parents:
2
diff
changeset
|
1496 |
|
560da37936db
6596475: (launcher) javaw should call InitCommonControls
ksrini
parents:
2
diff
changeset
|
1497 |
void |
560da37936db
6596475: (launcher) javaw should call InitCommonControls
ksrini
parents:
2
diff
changeset
|
1498 |
InitLauncher(jboolean javaw) |
560da37936db
6596475: (launcher) javaw should call InitCommonControls
ksrini
parents:
2
diff
changeset
|
1499 |
{ |
560da37936db
6596475: (launcher) javaw should call InitCommonControls
ksrini
parents:
2
diff
changeset
|
1500 |
JLI_SetTraceLauncher(); |
560da37936db
6596475: (launcher) javaw should call InitCommonControls
ksrini
parents:
2
diff
changeset
|
1501 |
} |
1323
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1502 |
|
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1503 |
/* |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1504 |
* The implementation for finding classes from the bootstrap |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1505 |
* class loader, refer to java.h |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1506 |
*/ |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1507 |
static FindClassFromBootLoader_t *findBootClass = NULL; |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1508 |
|
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1509 |
jclass |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1510 |
FindBootStrapClass(JNIEnv *env, const char* classname) |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1511 |
{ |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1512 |
if (findBootClass == NULL) { |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1513 |
findBootClass = (FindClassFromBootLoader_t *)dlsym(RTLD_DEFAULT, |
3834
16342ebd576d
6864028: Update the java launcher to use the new entry point JVM_FindClassFromBootLoader
mchung
parents:
1331
diff
changeset
|
1514 |
"JVM_FindClassFromBootLoader"); |
1323
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1515 |
if (findBootClass == NULL) { |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1516 |
JLI_ReportErrorMessage(DLL_ERROR4, |
3834
16342ebd576d
6864028: Update the java launcher to use the new entry point JVM_FindClassFromBootLoader
mchung
parents:
1331
diff
changeset
|
1517 |
"JVM_FindClassFromBootLoader"); |
1323
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1518 |
return NULL; |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1519 |
} |
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1520 |
} |
3834
16342ebd576d
6864028: Update the java launcher to use the new entry point JVM_FindClassFromBootLoader
mchung
parents:
1331
diff
changeset
|
1521 |
return findBootClass(env, classname); |
1323
e14a3b3536cd
6742159: (launcher) improve the java launching mechanism
ksrini
parents:
1145
diff
changeset
|
1522 |
} |