gcj-dbtool-4.8 man page on Solaris

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GCJ-DBTOOL(1)			      GNU			 GCJ-DBTOOL(1)

NAME
       gcj-dbtool - Manipulate class file mapping databases for libgcj

SYNOPSIS
       gcj-dbtool OPTION DBFILE [MORE] ...

       gcj-dbtool [-0] [-] [-n] [-a] [-f]
	 [-t] [-l] [-p [LIBDIR]]
	 [-v] [-m] [--version] [--help]

DESCRIPTION
       "gcj-dbtool" is a tool for creating and manipulating class file mapping
       databases.  "libgcj" can use these databases to find a shared library
       corresponding to the bytecode representation of a class.	 This
       functionality is useful for ahead-of-time compilation of a program that
       has no knowledge of "gcj".

       "gcj-dbtool" works best if all the jar files added to it are compiled
       using "-findirect-dispatch".

       Note that "gcj-dbtool" is currently available as "preview technology".
       We believe it is a reasonable way to allow application-transparent
       ahead-of-time compilation, but this is an unexplored area.  We welcome
       your comments.

OPTIONS
       -n DBFILE [SIZE]
	   This creates a new database.	 Currently, databases cannot be
	   resized; you can choose a larger initial size if desired.  The
	   default size is 32,749.

       -a DBFILE JARFILE LIB
       -f DBFILE JARFILE LIB
	   This adds a jar file to the database.  For each class file in the
	   jar, a cryptographic signature of the bytecode representation of
	   the class is recorded in the database.  At runtime, a class is
	   looked up by its signature and the compiled form of the class is
	   looked for in the corresponding shared library.  The -a option will
	   verify that LIB exists before adding it to the database; -f skips
	   this check.

       [-][-0] -m DBFILE DBFILE,[DBFILE]
	   Merge a number of databases.	 The output database overwrites any
	   existing database.  To add databases into an existing database,
	   include the destination in the list of sources.

	   If - or -0 are used, the list of files to read is taken from
	   standard input instead of the command line.	For -0, Input
	   filenames are terminated by a null character instead of by
	   whitespace.	Useful when arguments might contain white space.  The
	   GNU find -print0 option produces input suitable for this mode.

       -t DBFILE
	   Test a database.

       -l DBFILE
	   List the contents of a database.

       -p  Print the name of the default database.  If there is no default
	   database, this prints a blank line.	If LIBDIR is specified, use it
	   instead of the default library directory component of the database
	   name.

       --help
	   Print a help message, then exit.

       --version
       -v  Print version information, then exit.

SEE ALSO
       gcc(1), gcj(1), gcjh(1), jcf-dump(1), gfdl(7), and the Info entries for
       gcj and gcc.

COPYRIGHT
       Copyright (c) 2001-2013 Free Software Foundation, Inc.

       Permission is granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version 1.3 or
       any later version published by the Free Software Foundation; with no
       Invariant Sections, the Front-Cover Texts being (a) (see below), and
       with the Back-Cover Texts being (b) (see below).	 A copy of the license
       is included in the man page gfdl(7).

       (a) The FSF's Front-Cover Text is:

	    A GNU Manual

       (b) The FSF's Back-Cover Text is:

	    You have freedom to copy and modify this GNU Manual, like GNU
	    software.  Copies published by the Free Software Foundation raise
	    funds for GNU development.

gcc-4.8.0			  2013-03-22			 GCJ-DBTOOL(1)
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