Пример #1
0
void
CreateExecutionEnvironment(int *_argc,
                           char ***_argv,
                           char jrepath[],
                           jint so_jrepath,
                           char jvmpath[],
                           jint so_jvmpath,
                           char **original_argv) {
    char * jvmtype;
    int i = 0;
    char** pargv = *_argv;
    int running = CURRENT_DATA_MODEL;

    int wanted = running;

    for (i = 0; i < *_argc ; i++) {
        if (strcmp(pargv[i], "-J-d64") == 0 || strcmp(pargv[i], "-d64") == 0) {
            wanted = 64;
            continue;
        }
        if (strcmp(pargv[i], "-J-d32") == 0 || strcmp(pargv[i], "-d32") == 0) {
            wanted = 32;
            continue;
        }
    }
    if (running != wanted) {
        fprintf(stderr, "This Java instance does not support a %d-bit JVM.\nPlease install the desired version.\n", wanted);
        exit(1);
    }

    /* Find out where the JRE is that we will be using. */
    if (!GetJREPath(jrepath, so_jrepath)) {
        ReportErrorMessage("Error: could not find Java 2 Runtime Environment.",
                           JNI_TRUE);
        exit(2);
    }

    /* Find the specified JVM type */
    if (ReadKnownVMs(jrepath, (char*)GetArch(), JNI_FALSE) < 1) {
        ReportErrorMessage("Error: no known VMs. (check for corrupt jvm.cfg file)",
                           JNI_TRUE);
        exit(1);
    }
    jvmtype = CheckJvmType(_argc, _argv, JNI_FALSE);

    jvmpath[0] = '\0';
    if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) {
        char * message=NULL;
        const char * format = "Error: no `%s' JVM at `%s'.";
        message = (char *)JLI_MemAlloc((strlen(format)+strlen(jvmtype)+
                                    strlen(jvmpath)) * sizeof(char));
        sprintf(message,format, jvmtype, jvmpath);
        ReportErrorMessage(message, JNI_TRUE);
        exit(4);
    }
    /* If we got here, jvmpath has been correctly initialized. */

}
Пример #2
0
void
CreateExecutionEnvironment(int *_argc,
			   char ***_argv,
			   char jrepath[],
			   jint so_jrepath,
			   char jvmpath[],
			   jint so_jvmpath,
			   char **_jvmtype,
			   char **original_argv) {
    char *execname = NULL;
    int original_argc = *_argc;

    /* Compute the name of the executable */
    execname = SetExecname(*_argc, *_argv);

    /* Find out where the JRE is that we will be using. */
    if (!GetJREPath(jrepath, so_jrepath)) {
	fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n");
	exit(2);
    }

    /* Find the specified JVM type */
    if (ReadKnownVMs(jrepath) < 1) {
	fprintf(stderr, "Error: no known VMs. (check for corrupt jvm.cfg file)\n");
	exit(1);
    }
    *_jvmtype = CheckJvmType(_argc, _argv);

    jvmpath[0] = '\0';
    if (!GetJVMPath(jrepath, *_jvmtype, jvmpath, so_jvmpath)) {
	fprintf(stderr, "Error: no `%s' JVM at `%s'.\n", *_jvmtype, jvmpath);
	exit(4);
    }
    /* If we got here, jvmpath has been correctly initialized. */

    /* Set the LD_LIBRARY_PATH environment variable, check data model
       flags, and exec process, if needed */
    SetLibraryPath(_argc, _argv, original_argc, original_argv, execname, jrepath, jvmpath);
}
Пример #3
0
int
CreateExecutionEnvironment(int *_argc,
			   char ***_argv,
			   char jrepath[],
			   jint so_jrepath,
			   char jvmpath[],
			   jint so_jvmpath,
			   char **original_argv) {
   char * jvmtype;

    /* Find out where the JRE is that we will be using. */
    if (!GetJREPath(jrepath, so_jrepath)) {
	ReportErrorMessage("Could not find a suitable Java 2 Runtime Environment.",
			   JNI_TRUE);
		return 1;
    }

    /* Find the specified JVM type */
    if (ReadKnownVMs(jrepath, (char*)GetArch(), JNI_FALSE) < 1) {
	ReportErrorMessage("Error: no known VMs. (check for corrupt jvm.cfg file)", 
			   JNI_TRUE);
		return 1;
    }
    jvmtype = CheckJvmType(_argc, _argv, JNI_FALSE);

    jvmpath[0] = '\0';
    if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) {
        char * message=NULL;
	const char * format = "Error: no `%s' JVM at `%s'.";
	message = (char *)MemAlloc((strlen(format)+strlen(jvmtype)+
				    strlen(jvmpath)) * sizeof(char));
	sprintf(message,format, jvmtype, jvmpath); 
	ReportErrorMessage(message, JNI_TRUE);
		return 1;
    }
    /* If we got here, jvmpath has been correctly initialized. */
	return 0;

}
Пример #4
0
void
CreateExecutionEnvironment(int *pargc, char ***pargv,
                           char jrepath[], jint so_jrepath,
                           char jvmpath[], jint so_jvmpath) {
  /*
   * First, determine if we are running the desired data model.  If we
   * are running the desired data model, all the error messages
   * associated with calling GetJREPath, ReadKnownVMs, etc. should be
   * output.  However, if we are not running the desired data model,
   * some of the errors should be suppressed since it is more
   * informative to issue an error message based on whether or not the
   * os/processor combination has dual mode capabilities.
   */
    jboolean jvmpathExists;

    /* Compute/set the name of the executable */
    SetExecname(*pargv);

    /* Check data model flags, and exec process, if needed */
    {
      char *arch        = (char *)GetArch(); /* like sparc or sparcv9 */
      char * jvmtype    = NULL;
      int  argc         = *pargc;
      char **argv       = *pargv;
      int running       = CURRENT_DATA_MODEL;

      int wanted        = running;      /* What data mode is being
                                           asked for? Current model is
                                           fine unless another model
                                           is asked for */
#ifdef SETENV_REQUIRED
      jboolean mustsetenv = JNI_FALSE;
      char *runpath     = NULL; /* existing effective LD_LIBRARY_PATH setting */
      char* new_runpath = NULL; /* desired new LD_LIBRARY_PATH string */
      char* newpath     = NULL; /* path on new LD_LIBRARY_PATH */
      char* lastslash   = NULL;
      char** newenvp    = NULL; /* current environment */
#ifdef __solaris__
      char*  dmpath     = NULL;  /* data model specific LD_LIBRARY_PATH,
                                    Solaris only */
#endif /* __solaris__ */
#endif  /* SETENV_REQUIRED */

      char** newargv    = NULL;
      int    newargc    = 0;

      /*
       * Starting in 1.5, all unix platforms accept the -d32 and -d64
       * options.  On platforms where only one data-model is supported
       * (e.g. ia-64 Linux), using the flag for the other data model is
       * an error and will terminate the program.
       */

      { /* open new scope to declare local variables */
        int i;

        newargv = (char **)JLI_MemAlloc((argc+1) * sizeof(char*));
        newargv[newargc++] = argv[0];

        /* scan for data model arguments and remove from argument list;
           last occurrence determines desired data model */
        for (i=1; i < argc; i++) {

          if (JLI_StrCmp(argv[i], "-J-d64") == 0 || JLI_StrCmp(argv[i], "-d64") == 0) {
            wanted = 64;
            continue;
          }
          if (JLI_StrCmp(argv[i], "-J-d32") == 0 || JLI_StrCmp(argv[i], "-d32") == 0) {
            wanted = 32;
            continue;
          }
          newargv[newargc++] = argv[i];

          if (IsJavaArgs()) {
            if (argv[i][0] != '-') continue;
          } else {
            if (JLI_StrCmp(argv[i], "-classpath") == 0 || JLI_StrCmp(argv[i], "-cp") == 0) {
              i++;
              if (i >= argc) break;
              newargv[newargc++] = argv[i];
              continue;
            }
            if (argv[i][0] != '-') { i++; break; }
          }
        }

        /* copy rest of args [i .. argc) */
        while (i < argc) {
          newargv[newargc++] = argv[i++];
        }
        newargv[newargc] = NULL;

        /*
         * newargv has all proper arguments here
         */

        argc = newargc;
        argv = newargv;
      }

      /* If the data model is not changing, it is an error if the
         jvmpath does not exist */
      if (wanted == running) {
        /* Find out where the JRE is that we will be using. */
        if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) {
          JLI_ReportErrorMessage(JRE_ERROR1);
          exit(2);
        }

        /* Find the specified JVM type */
        if (ReadKnownVMs(jrepath, arch, JNI_FALSE) < 1) {
          JLI_ReportErrorMessage(CFG_ERROR7);
          exit(1);
        }

        jvmpath[0] = '\0';
        jvmtype = CheckJvmType(pargc, pargv, JNI_FALSE);
        if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
            JLI_ReportErrorMessage(CFG_ERROR9);
            exit(4);
        }

        if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch )) {
          JLI_ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath);
          exit(4);
        }
        /*
         * we seem to have everything we need, so without further ado
         * we return back, otherwise proceed to set the environment.
         */
#ifdef SETENV_REQUIRED
        mustsetenv = RequiresSetenv(wanted, jvmpath);
        JLI_TraceLauncher("mustsetenv: %s\n", mustsetenv ? "TRUE" : "FALSE");

        if (mustsetenv == JNI_FALSE) {
            return;
        }
#else
        return;
#endif /* SETENV_REQUIRED */
      } else {  /* do the same speculatively or exit */
#ifdef DUAL_MODE
        if (running != wanted) {
          /* Find out where the JRE is that we will be using. */
          if (!GetJREPath(jrepath, so_jrepath, GetArchPath(wanted), JNI_TRUE)) {
            /* give up and let other code report error message */
            JLI_ReportErrorMessage(JRE_ERROR2, wanted);
            exit(1);
          }

          /*
           * Read in jvm.cfg for target data model and process vm
           * selection options.
           */
          if (ReadKnownVMs(jrepath, GetArchPath(wanted), JNI_TRUE) < 1) {
            /* give up and let other code report error message */
            JLI_ReportErrorMessage(JRE_ERROR2, wanted);
            exit(1);
          }
          jvmpath[0] = '\0';
          jvmtype = CheckJvmType(pargc, pargv, JNI_TRUE);
          if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
            JLI_ReportErrorMessage(CFG_ERROR9);
            exit(4);
          }

          /* exec child can do error checking on the existence of the path */
          jvmpathExists = GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, GetArchPath(wanted));
#ifdef SETENV_REQUIRED
          mustsetenv = RequiresSetenv(wanted, jvmpath);
#endif /* SETENV_REQUIRED */
        }
#else
        JLI_ReportErrorMessage(JRE_ERROR2, wanted);
        exit(1);
#endif
        }
#ifdef SETENV_REQUIRED
        if (mustsetenv) {
            /*
             * We will set the LD_LIBRARY_PATH as follows:
             *
             *     o          $JVMPATH (directory portion only)
             *     o          $JRE/lib/$LIBARCHNAME
             *     o          $JRE/../lib/$LIBARCHNAME
             *
             * followed by the user's previous effective LD_LIBRARY_PATH, if
             * any.
             */

#ifdef __solaris__
            /*
             * Starting in Solaris 7, ld.so.1 supports three LD_LIBRARY_PATH
             * variables:
             *
             * 1. LD_LIBRARY_PATH -- used for 32 and 64 bit searches if
             * data-model specific variables are not set.
             *
             * 2. LD_LIBRARY_PATH_64 -- overrides and replaces LD_LIBRARY_PATH
             * for 64-bit binaries.
             *
             * 3. LD_LIBRARY_PATH_32 -- overrides and replaces LD_LIBRARY_PATH
             * for 32-bit binaries.
             *
             * The vm uses LD_LIBRARY_PATH to set the java.library.path system
             * property.  To shield the vm from the complication of multiple
             * LD_LIBRARY_PATH variables, if the appropriate data model
             * specific variable is set, we will act as if LD_LIBRARY_PATH had
             * the value of the data model specific variant and the data model
             * specific variant will be unset.  Note that the variable for the
             * *wanted* data model must be used (if it is set), not simply the
             * current running data model.
             */

            switch (wanted) {
                case 0:
                    if (running == 32) {
                        dmpath = getenv("LD_LIBRARY_PATH_32");
                        wanted = 32;
                    } else {
                        dmpath = getenv("LD_LIBRARY_PATH_64");
                        wanted = 64;
                    }
                    break;

                case 32:
                    dmpath = getenv("LD_LIBRARY_PATH_32");
                    break;

                case 64:
                    dmpath = getenv("LD_LIBRARY_PATH_64");
                    break;

                default:
                    JLI_ReportErrorMessage(JRE_ERROR3, __LINE__);
                    exit(1); /* unknown value in wanted */
                    break;
            }

            /*
             * If dmpath is NULL, the relevant data model specific variable is
             * not set and normal LD_LIBRARY_PATH should be used.
             */
            if (dmpath == NULL) {
                runpath = getenv("LD_LIBRARY_PATH");
            } else {
                runpath = dmpath;
            }
#else
            /*
             * If not on Solaris, assume only a single LD_LIBRARY_PATH
             * variable.
             */
            runpath = getenv("LD_LIBRARY_PATH");
#endif /* __solaris__ */

            /* runpath contains current effective LD_LIBRARY_PATH setting */

            jvmpath = JLI_StringDup(jvmpath);
            new_runpath = JLI_MemAlloc(((runpath != NULL) ? JLI_StrLen(runpath) : 0) +
                    2 * JLI_StrLen(jrepath) + 2 * JLI_StrLen(arch) +
                    JLI_StrLen(jvmpath) + 52);
            newpath = new_runpath + JLI_StrLen("LD_LIBRARY_PATH=");


            /*
             * Create desired LD_LIBRARY_PATH value for target data model.
             */
            {
                /* remove the name of the .so from the JVM path */
                lastslash = JLI_StrRChr(jvmpath, '/');
                if (lastslash)
                    *lastslash = '\0';

                sprintf(new_runpath, "LD_LIBRARY_PATH="
                        "%s:"
                        "%s/lib/%s:"
                        "%s/../lib/%s",
                        jvmpath,
#ifdef DUAL_MODE
                        jrepath, GetArchPath(wanted),
                        jrepath, GetArchPath(wanted)
#else
                        jrepath, arch,
                        jrepath, arch
#endif
                        );


                /*
                 * Check to make sure that the prefix of the current path is the
                 * desired environment variable setting, though the RequiresSetenv
                 * checks if the desired runpath exists, this logic does a more
                 * comprehensive check.
                 */
                if (runpath != NULL &&
                        JLI_StrNCmp(newpath, runpath, JLI_StrLen(newpath)) == 0 &&
                        (runpath[JLI_StrLen(newpath)] == 0 || runpath[JLI_StrLen(newpath)] == ':') &&
                        (running == wanted) /* data model does not have to be changed */
#ifdef __solaris__
                        && (dmpath == NULL) /* data model specific variables not set  */
#endif
                        ) {

                    return;

                }
            }

            /*
             * Place the desired environment setting onto the prefix of
             * LD_LIBRARY_PATH.  Note that this prevents any possible infinite
             * loop of execv() because we test for the prefix, above.
             */
            if (runpath != 0) {
                JLI_StrCat(new_runpath, ":");
                JLI_StrCat(new_runpath, runpath);
            }

            if (putenv(new_runpath) != 0) {
                exit(1); /* problem allocating memory; LD_LIBRARY_PATH not set
                    properly */
            }

            /*
             * Unix systems document that they look at LD_LIBRARY_PATH only
             * once at startup, so we have to re-exec the current executable
             * to get the changed environment variable to have an effect.
             */

#ifdef __solaris__
            /*
             * If dmpath is not NULL, remove the data model specific string
             * in the environment for the exec'ed child.
             */
            if (dmpath != NULL)
                (void)UnsetEnv((wanted == 32) ? "LD_LIBRARY_PATH_32" : "LD_LIBRARY_PATH_64");
#endif

            newenvp = environ;
        }
#endif /* SETENV_REQUIRED */
        {
            char *newexec = execname;
#ifdef DUAL_MODE
            /*
             * If the data model is being changed, the path to the
             * executable must be updated accordingly; the executable name
             * and directory the executable resides in are separate.  In the
             * case of 32 => 64, the new bits are assumed to reside in, e.g.
             * "olddir/LIBARCH64NAME/execname"; in the case of 64 => 32,
             * the bits are assumed to be in "olddir/../execname".  For example,
             *
             * olddir/sparcv9/execname
             * olddir/amd64/execname
             *
             * for Solaris SPARC and Linux amd64, respectively.
             */

            if (running != wanted) {
                char *oldexec = JLI_StrCpy(JLI_MemAlloc(JLI_StrLen(execname) + 1), execname);
                char *olddir = oldexec;
                char *oldbase = JLI_StrRChr(oldexec, '/');


                newexec = JLI_MemAlloc(JLI_StrLen(execname) + 20);
                *oldbase++ = 0;
                sprintf(newexec, "%s/%s/%s", olddir,
                        ((wanted == 64) ? LIBARCH64NAME : ".."), oldbase);
                argv[0] = newexec;
            }
#endif /* DUAL_MODE */
            JLI_TraceLauncher("TRACER_MARKER:About to EXEC\n");
            (void) fflush(stdout);
            (void) fflush(stderr);
#ifdef SETENV_REQUIRED
            if (mustsetenv) {
                execve(newexec, argv, newenvp);
            } else {
                execv(newexec, argv);
            }
#else
            execv(newexec, argv);
#endif /* SETENV_REQUIRED */
            JLI_ReportErrorMessageSys(JRE_ERROR4, newexec);

#ifdef DUAL_MODE
            if (running != wanted) {
                JLI_ReportErrorMessage(JRE_ERROR5, wanted, running);
#ifdef __solaris__
#ifdef __sparc
                JLI_ReportErrorMessage(JRE_ERROR6);
#else
                JLI_ReportErrorMessage(JRE_ERROR7);
#endif  /* __sparc */
            }
#endif /* __solaris__ */
#endif /* DUAL_MODE */

        }
        exit(1);
    }
}
Пример #5
0
void
CreateExecutionEnvironment(int *pargc, char ***pargv,
                           char *jrepath, jint so_jrepath,
                           char *jvmpath, jint so_jvmpath) {
    char * jvmtype;
    int i = 0;
    int running = CURRENT_DATA_MODEL;

    int wanted = running;

    char** argv = *pargv;
    for (i = 0; i < *pargc ; i++) {
        if (JLI_StrCmp(argv[i], "-J-d64") == 0 || JLI_StrCmp(argv[i], "-d64") == 0) {
            wanted = 64;
            continue;
        }
        if (JLI_StrCmp(argv[i], "-J-d32") == 0 || JLI_StrCmp(argv[i], "-d32") == 0) {
            wanted = 32;
            continue;
        }
    }
    if (running != wanted) {
        JLI_ReportErrorMessage(JRE_ERROR2, wanted);
        exit(1);
    }

    /* Find out where the JRE is that we will be using. */
    if (!GetJREPath(jrepath, so_jrepath)) {
        JLI_ReportErrorMessage(JRE_ERROR1);
        exit(2);
    }

    /* Find the specified JVM type */
    if (ReadKnownVMs(jrepath, (char*)GetArch(), JNI_FALSE) < 1) {
        JLI_ReportErrorMessage(CFG_ERROR7);
        exit(1);
    }

    jvmtype = CheckJvmType(pargc, pargv, JNI_FALSE);
    if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
        JLI_ReportErrorMessage(CFG_ERROR9);
        exit(4);
    }

    jvmpath[0] = '\0';
    if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) {
        JLI_ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath);
        exit(4);
    }
    /* If we got here, jvmpath has been correctly initialized. */

    /* Check if we need preload AWT */
#ifdef ENABLE_AWT_PRELOAD
    argv = *pargv;
    for (i = 0; i < *pargc ; i++) {
        /* Tests the "turn on" parameter only if not set yet. */
        if (awtPreloadD3D < 0) {
            if (GetBoolParamValue(PARAM_PRELOAD_D3D, argv[i]) == 1) {
                awtPreloadD3D = 1;
            }
        }
        /* Test parameters which can disable preloading if not already disabled. */
        if (awtPreloadD3D != 0) {
            if (GetBoolParamValue(PARAM_NODDRAW, argv[i]) == 1
                || GetBoolParamValue(PARAM_D3D, argv[i]) == 0
                || GetBoolParamValue(PARAM_OPENGL, argv[i]) == 1)
            {
                awtPreloadD3D = 0;
                /* no need to test the rest of the parameters */
                break;
            }
        }
    }
#endif /* ENABLE_AWT_PRELOAD */
}
Пример #6
0
void
CreateExecutionEnvironment(int *_argc,
                           char ***_argv,
                           char jrepath[],
                           jint so_jrepath,
                           char jvmpath[],
                           jint so_jvmpath,
                           char **original_argv) {
#ifndef GAMMA
   char * jvmtype;

    /* Find out where the JRE is that we will be using. */
    if (!GetJREPath(jrepath, so_jrepath)) {
        ReportErrorMessage("Error: could not find Java SE Runtime Environment.",
                           JNI_TRUE);
        exit(2);
    }

    /* Do this before we read jvm.cfg */
    EnsureJreInstallation(jrepath);

    /* Find the specified JVM type */
    if (ReadKnownVMs(jrepath, (char*)GetArch(), JNI_FALSE) < 1) {
        ReportErrorMessage("Error: no known VMs. (check for corrupt jvm.cfg file)",
                           JNI_TRUE);
        exit(1);
    }
    jvmtype = CheckJvmType(_argc, _argv, JNI_FALSE);

    jvmpath[0] = '\0';
    if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) {
        char * message=NULL;
        const char * format = "Error: no `%s' JVM at `%s'.";
        message = (char *)JLI_MemAlloc((strlen(format)+strlen(jvmtype)+
                                    strlen(jvmpath)) * sizeof(char));
        sprintf(message,format, jvmtype, jvmpath);
        ReportErrorMessage(message, JNI_TRUE);
        exit(4);
    }
    /* If we got here, jvmpath has been correctly initialized. */

#else  /* ifndef GAMMA */

    /*
     * gamma launcher is simpler in that it doesn't handle VM flavors, data
     * model, etc. Assuming everything is set-up correctly
     * all we need to do here is to return correct path names. See also
     * GetJVMPath() and GetApplicationHome().
     */

  {
    if (!GetJREPath(jrepath, so_jrepath) ) {
       ReportErrorMessage("Error: could not find Java SE Runtime Environment.",
                          JNI_TRUE);
       exit(2);
    }

    if (!GetJVMPath(jrepath, NULL, jvmpath, so_jvmpath)) {
       char * message=NULL;
       const char * format = "Error: no JVM at `%s'.";
       message = (char *)JLI_MemAlloc((strlen(format)+
                                       strlen(jvmpath)) * sizeof(char));
       sprintf(message, format, jvmpath);
       ReportErrorMessage(message, JNI_TRUE);
       exit(4);
    }
  }

#endif  /* ifndef GAMMA */

}
Пример #7
0
void
CreateExecutionEnvironment(int *pargc, char ***pargv,
                           char jrepath[], jint so_jrepath,
                           char jvmpath[], jint so_jvmpath,
                           char jvmcfg[],  jint so_jvmcfg) {
  /*
   * First, determine if we are running the desired data model.  If we
   * are running the desired data model, all the error messages
   * associated with calling GetJREPath, ReadKnownVMs, etc. should be
   * output, otherwise we simply exit with an error, as we no longer
   * support dual data models.
   */
    jboolean jvmpathExists;

    /* Compute/set the name of the executable */
    SetExecname(*pargv);

    /* Check data model flags, and exec process, if needed */
    {
      char *arch        = LIBARCHNAME; /* like sparc or sparcv9 */
      char * jvmtype    = NULL;
      int  argc         = *pargc;
      char **argv       = *pargv;
      int running       = CURRENT_DATA_MODEL;
      /*
       * As of jdk9, there is no support for dual mode operations, however
       * for legacy error reporting purposes and until -d options are supported
       * we need this.
       */
      int wanted        = running;
#ifdef SETENV_REQUIRED
      jboolean mustsetenv = JNI_FALSE;
      char *runpath     = NULL; /* existing effective LD_LIBRARY_PATH setting */
      char* new_runpath = NULL; /* desired new LD_LIBRARY_PATH string */
      char* newpath     = NULL; /* path on new LD_LIBRARY_PATH */
      char* lastslash   = NULL;
      char** newenvp    = NULL; /* current environment */
      size_t new_runpath_size;
#ifdef __solaris__
      char*  dmpath     = NULL;  /* data model specific LD_LIBRARY_PATH,
                                    Solaris only */
#endif /* __solaris__ */
#endif  /* SETENV_REQUIRED */

      char** newargv    = NULL;
      int    newargc    = 0;

      /*
       * Starting in 1.5, all unix platforms accept the -d32 and -d64
       * options.  On platforms where only one data-model is supported
       * (e.g. ia-64 Linux), using the flag for the other data model is
       * an error and will terminate the program.
       */

      { /* open new scope to declare local variables */
        int i;

        newargv = (char **)JLI_MemAlloc((argc+1) * sizeof(char*));
        newargv[newargc++] = argv[0];

        /* scan for data model arguments and remove from argument list;
           last occurrence determines desired data model */
        for (i=1; i < argc; i++) {

          if (JLI_StrCmp(argv[i], "-J-d64") == 0 || JLI_StrCmp(argv[i], "-d64") == 0) {
            wanted = 64;
            continue;
          }
          if (JLI_StrCmp(argv[i], "-J-d32") == 0 || JLI_StrCmp(argv[i], "-d32") == 0) {
            wanted = 32;
            continue;
          }
          newargv[newargc++] = argv[i];

          if (IsJavaArgs()) {
            if (argv[i][0] != '-') continue;
          } else {
            if (JLI_StrCmp(argv[i], "-classpath") == 0 || JLI_StrCmp(argv[i], "-cp") == 0) {
              i++;
              if (i >= argc) break;
              newargv[newargc++] = argv[i];
              continue;
            }
            if (argv[i][0] != '-') { i++; break; }
          }
        }

        /* copy rest of args [i .. argc) */
        while (i < argc) {
          newargv[newargc++] = argv[i++];
        }
        newargv[newargc] = NULL;

        /*
         * newargv has all proper arguments here
         */

        argc = newargc;
        argv = newargv;
      }

      /* If the data model is not changing, it is an error if the
         jvmpath does not exist */
      if (wanted == running) {
        /* Find out where the JRE is that we will be using. */
        if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) {
          JLI_ReportErrorMessage(JRE_ERROR1);
          exit(2);
        }
        JLI_Snprintf(jvmcfg, so_jvmcfg, "%s%slib%s%s%sjvm.cfg",
                     jrepath, FILESEP, FILESEP,  arch, FILESEP);
        /* Find the specified JVM type */
        if (ReadKnownVMs(jvmcfg, JNI_FALSE) < 1) {
          JLI_ReportErrorMessage(CFG_ERROR7);
          exit(1);
        }

        jvmpath[0] = '\0';
        jvmtype = CheckJvmType(pargc, pargv, JNI_FALSE);
        if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
            JLI_ReportErrorMessage(CFG_ERROR9);
            exit(4);
        }

        if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch, 0 )) {
          JLI_ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath);
          exit(4);
        }
        /*
         * we seem to have everything we need, so without further ado
         * we return back, otherwise proceed to set the environment.
         */
#ifdef SETENV_REQUIRED
        mustsetenv = RequiresSetenv(jvmpath);
        JLI_TraceLauncher("mustsetenv: %s\n", mustsetenv ? "TRUE" : "FALSE");

        if (mustsetenv == JNI_FALSE) {
            JLI_MemFree(newargv);
            return;
        }
#else
            JLI_MemFree(newargv);
            return;
#endif /* SETENV_REQUIRED */
    } else {  /* do the same speculatively or exit */
        JLI_ReportErrorMessage(JRE_ERROR2, wanted);
        exit(1);
    }
#ifdef SETENV_REQUIRED
        if (mustsetenv) {
            /*
             * We will set the LD_LIBRARY_PATH as follows:
             *
             *     o          $JVMPATH (directory portion only)
             *     o          $JRE/lib/$LIBARCHNAME
             *     o          $JRE/../lib/$LIBARCHNAME
             *
             * followed by the user's previous effective LD_LIBRARY_PATH, if
             * any.
             */

#ifdef __solaris__
            /*
             * Starting in Solaris 7, ld.so.1 supports three LD_LIBRARY_PATH
             * variables:
             *
             * 1. LD_LIBRARY_PATH -- used for 32 and 64 bit searches if
             * data-model specific variables are not set.
             *
             * 2. LD_LIBRARY_PATH_64 -- overrides and replaces LD_LIBRARY_PATH
             * for 64-bit binaries.
             * The vm uses LD_LIBRARY_PATH to set the java.library.path system
             * property.  To shield the vm from the complication of multiple
             * LD_LIBRARY_PATH variables, if the appropriate data model
             * specific variable is set, we will act as if LD_LIBRARY_PATH had
             * the value of the data model specific variant and the data model
             * specific variant will be unset.  Note that the variable for the
             * *wanted* data model must be used (if it is set), not simply the
             * current running data model.
             */

            switch (wanted) {
                case 0:
                case 64:
                    dmpath = getenv("LD_LIBRARY_PATH_64");
                    wanted = 64;
                    break;

                default:
                    JLI_ReportErrorMessage(JRE_ERROR3, __LINE__);
                    exit(1); /* unknown value in wanted */
                    break;
            }

            /*
             * If dmpath is NULL, the relevant data model specific variable is
             * not set and normal LD_LIBRARY_PATH should be used.
             */
            if (dmpath == NULL) {
                runpath = getenv("LD_LIBRARY_PATH");
            } else {
                runpath = dmpath;
            }
#else /* ! __solaris__ */
            /*
             * If not on Solaris, assume only a single LD_LIBRARY_PATH
             * variable.
             */
            runpath = getenv(LD_LIBRARY_PATH);
#endif /* __solaris__ */

            /* runpath contains current effective LD_LIBRARY_PATH setting */

            jvmpath = JLI_StringDup(jvmpath);
            new_runpath_size = ((runpath != NULL) ? JLI_StrLen(runpath) : 0) +
                    2 * JLI_StrLen(jrepath) + 2 * JLI_StrLen(arch) +
#ifdef AIX
                    /* On AIX we additionally need 'jli' in the path because ld doesn't support $ORIGIN. */
                    JLI_StrLen(jrepath) + JLI_StrLen(arch) + JLI_StrLen("/lib//jli:") +
#endif
                    JLI_StrLen(jvmpath) + 52;
            new_runpath = JLI_MemAlloc(new_runpath_size);
            newpath = new_runpath + JLI_StrLen(LD_LIBRARY_PATH "=");


            /*
             * Create desired LD_LIBRARY_PATH value for target data model.
             */
            {
                /* remove the name of the .so from the JVM path */
                lastslash = JLI_StrRChr(jvmpath, '/');
                if (lastslash)
                    *lastslash = '\0';

                sprintf(new_runpath, LD_LIBRARY_PATH "="
                        "%s:"
                        "%s/lib/%s:"
#ifdef AIX
                        "%s/lib/%s/jli:" /* Needed on AIX because ld doesn't support $ORIGIN. */
#endif
                        "%s/../lib/%s",
                        jvmpath,
                        jrepath, arch,
#ifdef AIX
                        jrepath, arch,
#endif
                        jrepath, arch
                        );


                /*
                 * Check to make sure that the prefix of the current path is the
                 * desired environment variable setting, though the RequiresSetenv
                 * checks if the desired runpath exists, this logic does a more
                 * comprehensive check.
                 */
                if (runpath != NULL &&
                        JLI_StrNCmp(newpath, runpath, JLI_StrLen(newpath)) == 0 &&
                        (runpath[JLI_StrLen(newpath)] == 0 || runpath[JLI_StrLen(newpath)] == ':') &&
                        (running == wanted) /* data model does not have to be changed */
#ifdef __solaris__
                        && (dmpath == NULL) /* data model specific variables not set  */
#endif /* __solaris__ */
                        ) {
                    JLI_MemFree(newargv);
                    JLI_MemFree(new_runpath);
                    return;
                }
            }

            /*
             * Place the desired environment setting onto the prefix of
             * LD_LIBRARY_PATH.  Note that this prevents any possible infinite
             * loop of execv() because we test for the prefix, above.
             */
            if (runpath != 0) {
                /* ensure storage for runpath + colon + NULL */
                if ((JLI_StrLen(runpath) + 1 + 1) > new_runpath_size) {
                    JLI_ReportErrorMessageSys(JRE_ERROR11);
                    exit(1);
                }
                JLI_StrCat(new_runpath, ":");
                JLI_StrCat(new_runpath, runpath);
            }

            if (putenv(new_runpath) != 0) {
                exit(1); /* problem allocating memory; LD_LIBRARY_PATH not set
                    properly */
            }

            /*
             * Unix systems document that they look at LD_LIBRARY_PATH only
             * once at startup, so we have to re-exec the current executable
             * to get the changed environment variable to have an effect.
             */

#ifdef __solaris__
            /*
             * If dmpath is not NULL, remove the data model specific string
             * in the environment for the exec'ed child.
             */
            if (dmpath != NULL)
                (void)UnsetEnv("LD_LIBRARY_PATH_64");
#endif /* __solaris */

            newenvp = environ;
        }
#endif /* SETENV_REQUIRED */
        {
            char *newexec = execname;
            JLI_TraceLauncher("TRACER_MARKER:About to EXEC\n");
            (void) fflush(stdout);
            (void) fflush(stderr);
#ifdef SETENV_REQUIRED
            if (mustsetenv) {
                execve(newexec, argv, newenvp);
            } else {
                execv(newexec, argv);
            }
#else /* !SETENV_REQUIRED */
            execv(newexec, argv);
#endif /* SETENV_REQUIRED */
            JLI_ReportErrorMessageSys(JRE_ERROR4, newexec);
        }
        exit(1);
    }
}
Пример #8
0
void
CreateExecutionEnvironment(int *pargc, char ***pargv,
                           char jrepath[], jint so_jrepath,
                           char jvmpath[], jint so_jvmpath,
                           char jvmcfg[],  jint so_jvmcfg) {
  /*
   * First, determine if we are running the desired data model.  If we
   * are running the desired data model, all the error messages
   * associated with calling GetJREPath, ReadKnownVMs, etc. should be
   * output.  However, if we are not running the desired data model,
   * some of the errors should be suppressed since it is more
   * informative to issue an error message based on whether or not the
   * os/processor combination has dual mode capabilities.
   */
    jboolean jvmpathExists;

    /* Compute/set the name of the executable */
    SetExecname(*pargv);

    /* Check data model flags, and exec process, if needed */
    {
      char *arch        = (char *)GetArch(); /* like sparc or sparcv9 */
      char * jvmtype    = NULL;
      int  argc         = *pargc;
      char **argv       = *pargv;
      int running       = CURRENT_DATA_MODEL;

      int wanted        = running;      /* What data mode is being
                                           asked for? Current model is
                                           fine unless another model
                                           is asked for */

      char** newargv    = NULL;
      int    newargc    = 0;

      /*
       * Starting in 1.5, all unix platforms accept the -d32 and -d64
       * options.  On platforms where only one data-model is supported
       * (e.g. ia-64 Linux), using the flag for the other data model is
       * an error and will terminate the program.
       */

      { /* open new scope to declare local variables */
        int i;

        newargv = (char **)JLI_MemAlloc((argc+1) * sizeof(char*));
        newargv[newargc++] = argv[0];

        /* scan for data model arguments and remove from argument list;
           last occurrence determines desired data model */
        for (i=1; i < argc; i++) {

          if (JLI_StrCmp(argv[i], "-J-d64") == 0 || JLI_StrCmp(argv[i], "-d64") == 0) {
            wanted = 64;
            continue;
          }
          if (JLI_StrCmp(argv[i], "-J-d32") == 0 || JLI_StrCmp(argv[i], "-d32") == 0) {
            wanted = 32;
            continue;
          }
          newargv[newargc++] = argv[i];

          if (IsJavaArgs()) {
            if (argv[i][0] != '-') continue;
          } else {
            if (JLI_StrCmp(argv[i], "-classpath") == 0 || JLI_StrCmp(argv[i], "-cp") == 0) {
              i++;
              if (i >= argc) break;
              newargv[newargc++] = argv[i];
              continue;
            }
            if (argv[i][0] != '-') { i++; break; }
          }
        }

        /* copy rest of args [i .. argc) */
        while (i < argc) {
          newargv[newargc++] = argv[i++];
        }
        newargv[newargc] = NULL;

        /*
         * newargv has all proper arguments here
         */

        argc = newargc;
        argv = newargv;
      }

      /* If the data model is not changing, it is an error if the
         jvmpath does not exist */
      if (wanted == running) {
        /* Find out where the JRE is that we will be using. */
        if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) {
          JLI_ReportErrorMessage(JRE_ERROR1);
          exit(2);
        }
        JLI_Snprintf(jvmcfg, so_jvmcfg, "%s%slib%s%s%sjvm.cfg",
          jrepath, FILESEP, FILESEP,  "", "");
        /* Find the specified JVM type */
        if (ReadKnownVMs(jvmcfg, JNI_FALSE) < 1) {
          JLI_ReportErrorMessage(CFG_ERROR7);
          exit(1);
        }

        jvmpath[0] = '\0';
        jvmtype = CheckJvmType(pargc, pargv, JNI_FALSE);
        if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
            JLI_ReportErrorMessage(CFG_ERROR9);
            exit(4);
        }

        if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch, wanted)) {
          JLI_ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath);
          exit(4);
        }

        /*
         * Mac OS X requires the Cocoa event loop to be run on the "main"
         * thread. Spawn off a new thread to run main() and pass
         * this thread off to the Cocoa event loop.
         */
        MacOSXStartup(argc, argv);

        /*
         * we seem to have everything we need, so without further ado
         * we return back, otherwise proceed to set the environment.
         */
        return;
      } else {  /* do the same speculatively or exit */
#if defined(DUAL_MODE)
        if (running != wanted) {
          /* Find out where the JRE is that we will be using. */
          if (!GetJREPath(jrepath, so_jrepath, GetArchPath(wanted), JNI_TRUE)) {
            /* give up and let other code report error message */
            JLI_ReportErrorMessage(JRE_ERROR2, wanted);
            exit(1);
          }
          JLI_Snprintf(jvmcfg, so_jvmcfg, "%s%slib%s%s%sjvm.cfg",
            jrepath, FILESEP, FILESEP,  "", "");
          /*
           * Read in jvm.cfg for target data model and process vm
           * selection options.
           */
          if (ReadKnownVMs(jvmcfg, JNI_TRUE) < 1) {
            /* give up and let other code report error message */
            JLI_ReportErrorMessage(JRE_ERROR2, wanted);
            exit(1);
          }
          jvmpath[0] = '\0';
          jvmtype = CheckJvmType(pargc, pargv, JNI_TRUE);
          if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
            JLI_ReportErrorMessage(CFG_ERROR9);
            exit(4);
          }

          /* exec child can do error checking on the existence of the path */
          jvmpathExists = GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, GetArchPath(wanted), wanted);
        }
#else /* ! DUAL_MODE */
        JLI_ReportErrorMessage(JRE_ERROR2, wanted);
        exit(1);
#endif /* DUAL_MODE */
        }
        {
            char *newexec = execname;
            JLI_TraceLauncher("TRACER_MARKER:About to EXEC\n");
            (void) fflush(stdout);
            (void) fflush(stderr);
            /*
            * Use posix_spawn() instead of execv() on Mac OS X.
            * This allows us to choose which architecture the child process
            * should run as.
            */
            {
                posix_spawnattr_t attr;
                size_t unused_size;
                pid_t  unused_pid;

#if defined(__i386__) || defined(__x86_64__)
                cpu_type_t cpu_type[] = { (wanted == 64) ? CPU_TYPE_X86_64 : CPU_TYPE_X86,
                                    (running== 64) ? CPU_TYPE_X86_64 : CPU_TYPE_X86 };
#else
                cpu_type_t cpu_type[] = { CPU_TYPE_ANY };
#endif /* __i386 .. */

                posix_spawnattr_init(&attr);
                posix_spawnattr_setflags(&attr, POSIX_SPAWN_SETEXEC);
                posix_spawnattr_setbinpref_np(&attr, sizeof(cpu_type) / sizeof(cpu_type_t),
                                            cpu_type, &unused_size);

                posix_spawn(&unused_pid, newexec, NULL, &attr, argv, environ);
            }
            JLI_ReportErrorMessageSys(JRE_ERROR4, newexec);

#if defined(DUAL_MODE)
            if (running != wanted) {
                JLI_ReportErrorMessage(JRE_ERROR5, wanted, running);
            }
#endif /* DUAL_MODE */
        }
        exit(1);
    }
}