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| .\" ======================================================================== |
| .\" |
| .IX Title "GCJ-DBTOOL 1" |
| .TH GCJ-DBTOOL 1 "2011-04-28" "gcc-4.5.3" "GNU" |
| .\" For nroff, turn off justification. Always turn off hyphenation; it makes |
| .\" way too many mistakes in technical documents. |
| .if n .ad l |
| .nh |
| .SH "NAME" |
| gcj\-dbtool \- Manipulate class file mapping databases for libgcj |
| .SH "SYNOPSIS" |
| .IX Header "SYNOPSIS" |
| gcj-dbtool \fB\s-1OPTION\s0\fR \fI\s-1DBFILE\s0\fR [\fB\s-1MORE\s0\fR] ... |
| .PP |
| gcj-dbtool [\fB\-0\fR] [\fB\-\fR] [\fB\-n\fR] [\fB\-a\fR] [\fB\-f\fR] |
| [\fB\-t\fR] [\fB\-l\fR] [\fB\-p\fR [\fI\s-1LIBDIR\s0\fR]] |
| [\fB\-v\fR] [\fB\-m\fR] [\fB\-\-version\fR] [\fB\-\-help\fR] |
| .SH "DESCRIPTION" |
| .IX Header "DESCRIPTION" |
| \&\f(CW\*(C`gcj\-dbtool\*(C'\fR is a tool for creating and manipulating class file |
| mapping databases. \f(CW\*(C`libgcj\*(C'\fR 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 \f(CW\*(C`gcj\*(C'\fR. |
| .PP |
| \&\f(CW\*(C`gcj\-dbtool\*(C'\fR works best if all the jar files added to it are |
| compiled using \f(CW\*(C`\-findirect\-dispatch\*(C'\fR. |
| .PP |
| Note that \f(CW\*(C`gcj\-dbtool\*(C'\fR is currently available as \*(L"preview |
| technology\*(R". 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. |
| .SH "OPTIONS" |
| .IX Header "OPTIONS" |
| .IP "\fB\-n\fR \fI\s-1DBFILE\s0\fR \fB[\fR\fI\s-1SIZE\s0\fR\fB]\fR" 4 |
| .IX Item "-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. |
| .IP "\fB\-a\fR \fI\s-1DBFILE\s0\fR\fB \fR\fI\s-1JARFILE\s0\fR\fB \fR\fI\s-1LIB\s0\fR" 4 |
| .IX Item "-a DBFILE JARFILE LIB" |
| .PD 0 |
| .IP "\fB\-f\fR \fI\s-1DBFILE\s0\fR\fB \fR\fI\s-1JARFILE\s0\fR\fB \fR\fI\s-1LIB\s0\fR" 4 |
| .IX Item "-f DBFILE JARFILE LIB" |
| .PD |
| 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 \fB\-a\fR option will verify |
| that \fI\s-1LIB\s0\fR exists before adding it to the database; \fB\-f\fR |
| skips this check. |
| .IP "\fB[\fR\fB\-\fR\fB][\fR\fB\-0\fR\fB] \-m\fR \fI\s-1DBFILE\s0\fR\fB \fR\fI\s-1DBFILE\s0\fR\fB,[\fR\fI\s-1DBFILE\s0\fR\fB]\fR" 4 |
| .IX Item "[-][-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. |
| .Sp |
| If \fB\-\fR or \fB\-0\fR are used, the list of files to read is |
| taken from standard input instead of the command line. For |
| \&\fB\-0\fR, Input filenames are terminated by a null character |
| instead of by whitespace. Useful when arguments might contain white |
| space. The \s-1GNU\s0 find \-print0 option produces input suitable for this |
| mode. |
| .IP "\fB\-t\fR \fI\s-1DBFILE\s0\fR" 4 |
| .IX Item "-t DBFILE" |
| Test a database. |
| .IP "\fB\-l\fR \fI\s-1DBFILE\s0\fR" 4 |
| .IX Item "-l DBFILE" |
| List the contents of a database. |
| .IP "\fB\-p\fR" 4 |
| .IX Item "-p" |
| Print the name of the default database. If there is no default |
| database, this prints a blank line. If \fI\s-1LIBDIR\s0\fR is specified, use |
| it instead of the default library directory component of the database |
| name. |
| .IP "\fB\-\-help\fR" 4 |
| .IX Item "--help" |
| Print a help message, then exit. |
| .IP "\fB\-\-version\fR" 4 |
| .IX Item "--version" |
| .PD 0 |
| .IP "\fB\-v\fR" 4 |
| .IX Item "-v" |
| .PD |
| Print version information, then exit. |
| .SH "SEE ALSO" |
| .IX Header "SEE ALSO" |
| \&\fIgcc\fR\|(1), \fIgcj\fR\|(1), \fIgcjh\fR\|(1), \fIjcf\-dump\fR\|(1), \fIgfdl\fR\|(7), |
| and the Info entries for \fIgcj\fR and \fIgcc\fR. |
| .SH "COPYRIGHT" |
| .IX Header "COPYRIGHT" |
| Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
| .PP |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.2 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 \fIgfdl\fR\|(7). |
| .PP |
| (a) The \s-1FSF\s0's Front-Cover Text is: |
| .PP |
| .Vb 1 |
| \& A GNU Manual |
| .Ve |
| .PP |
| (b) The \s-1FSF\s0's Back-Cover Text is: |
| .PP |
| .Vb 3 |
| \& 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. |
| .Ve |