NAME
gij - GNU interpreter for Java bytecode
SYNOPSIS
gij [\s-1OPTION\s0] ... \s-1JARFILE\s0 [\s-1ARGS\s0...]
gij [-jar] [\s-1OPTION\s0] ... \s-1CLASS\s0 [\s-1ARGS\s0...]
[-cp path] [-classpath path]
[-Dname[=value]...]
[-ms=number] [-mx=number]
[-Xargument] [-verbose] [-verbose:class]
[--showversion] [--version] [--help][-?]
DESCRIPTION
CWgij is a Java bytecode interpreter included with CWlibgcj.
CWgij is not available on every platform; porting it requires a
small amount of assembly programming which has not been done for all the
targets supported by gcj.
The primary argument to CWgij is the name of a class or, with
CW-jar, a jar file. Options before this argument are interpreted
by CWgij; remaining options are passed to the interpreted program.
If a class name is specified and this class does not have a CWmain
method with the appropriate signature (a CWstatic void method with
a CWString[] as its sole argument), then CWgij will print an
error and exit.
If a jar file is specified then CWgij will use information in it to
determine which class' CWmain method will be invoked.
CWgij will invoke the CWmain method with all the remaining
command-line options.
Note that CWgij is not limited to interpreting code. Because
CWlibgcj includes a class loader which can dynamically load shared
objects, it is possible to give CWgij the name of a class which has
been compiled and put into a shared library on the class path.
OPTIONS
"-cp
"-classpath
Set the initial class path. The class path is used for finding
class and resource files. If specified, this option overrides the
CWCLASSPATH environment variable. Note that this option is
ignored if CW-jar is used.
"-Dname[=value]"
This defines a system property named name with value value.
If value is not specified then it defaults to the empty string.
These system properties are initialized at the program's startup and can
be retrieved at runtime using the CWjava.lang.System.getProperty
method.
"-ms=number"
Equivalent to CW-Xms.
"-mx=number"
Equivalent to CW-Xmx.
"-noverify"
Do not verify compliance of bytecode with the \s-1VM\s0 specification. In addition,
this option disables type verification which is otherwise performed on BC-ABI
compiled code.
"-X"
"-Xargument"
Supplying CW-X
by itself will cause CWgij to list all the
supported CW-X
options. Currently these options are supported:
"-Xmssize"
Set the initial heap size.
"-Xmxsize"
Set the maximum heap size.
"
-Xsssize"
Set the thread stack size.
Unrecognized CW-X options are ignored, for compatibility with
other runtimes.
"-jar"
This indicates that the name passed to CWgij should be interpreted
as the name of a jar file, not a class.
"--help"
"-?"
Print help, then exit.
"--showversion"
Print version number and continue.
"--fullversion"
Print detailed version information, then exit.
"--version"
Print version number, then exit.
"-verbose"
"-verbose:class"
Each time a class is initialized, print a short message on standard error.
CWgij also recognizes and ignores the following options, for
compatibility with existing application launch scripts:
CW-client, CW-server, CW-hotspot, CW-jrockit,
CW-agentlib, CW-agentpath, CW-debug, CW-d32,
CW-d64, CW-javaagent, CW-noclassgc, CW-verify,
and CW-verifyremote.
SEE ALSO
gcc(1), gcj(1), gcjh(1), jcf-dump(1), gfdl(7),
and the Info entries for gcj and gcc.
gcc(1), gcj(1), gcjh(1), jcf-dump(1), gfdl(7),
and the Info entries for gcj and gcc.
COPYRIGHT
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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 the
Invariant Sections being \s-1GNU\s0 General Public License, 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 \s-1FSF\s0's Front-Cover Text is:
A GNU Manual
(b) The \s-1FSF\s0'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.