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Man Pages


Manual Reference Pages  -  CACAO (1)

NAME

cacao - a Java just-in-time compiler

CONTENTS

Synopsis
Description
Options
Non-standard Options
Debugging Options
Experimental Options
Environment Variables
Author

SYNOPSIS

cacao [ options ] classname [ argument ... ]
cacao [ options ] -jar file.jar [ argument ... ]

DESCRIPTION

The method main of the class classname is executed. Method main must have the signature public static void main(String[] argv). The program arguments are passed to method main in the string array argv. The environment variable CLASSPATH must contain the directory of the Java class files.

OPTIONS

Currently recognized options are:

-classpath path
  Set the search path for user-defined class files. Usually the environment variable CLASSPATH specifies the search path, but this option overrides the value of the environment variable. path may be a colon-separated list of directories and .jar files.

-cp path
  Equivalent to -classpath path.

-Dproperty=value
  Assign a value to an entry of the system property list.

-verbose[:class|gc|jni]
  Enable specific verbose output.

-version
  Print product version and exit.

-fullversion
  Print jpackage-compatible product version and exit.

-showversion
  Print product version and continue.

-help, -?
  Print this help message and exit.

-X Print help on non-standard Java options.

NON-STANDARD OPTIONS

Currently recognized options are:

-Xbootclasspath/a:path
  Append path to the search path of the bootstrap loader.

-Xbootclasspath/p:path
  Prepend path to the search path of the bootstrap loader.

-Xbootclasspath:path
  Set the search path of the bootstrap loader to path. path is a list of .zip files, .jar files, or directories, separated by :.

-Xint Interpreter mode execution.

-Xjit JIT mode execution (default).

-Xmssize
  Set the initial size of the heap (default: 2MB).

-Xmxsize
  Set the maximum size of the heap (default: 64MB).

-Xsssize
  Set the thread stack size (default: 128kB).

-all Compile all methods, no execution.

-cb Disable array bounds checks.

-cs Disable synchronization.

-l Don’t start the class after loading.

-liberalutf
  Don’t warn about overlong UTF-8 sequences.

-log logfile
  Specifies the logfile. Default is stdout.

-lsra Use linear scan register allocation.

-m method
  Compile only a specific method.

-noverify
  Turn off bytecode verification and other verifier checks.

-sig signature
  Specify signature for the method given by the -m option.

-softnull
  Use software nullpointer check.

-stat Print detailed compiler statistics.

-time Gives statistics about run time after the program has completed.

-v Print state information.

DEBUGGING OPTIONS

The following options are useful for debugging cacao:

-sa Show a disassembled listing of the generated code.

-sc Show the constant pool.

-sd Show data segment listing.

-se Show disassembled exception stubs (only with -sa).

-si Show intermediate representation.

-sm Show class fields and methods.

-sn Show disassembled native stubs.

-su Show the internal utf hash.

-verbose
  Print more information.

-verbosecall
  Trace method calls.

-verboseexception
  Trace exceptions and stack unwinding.

-verbosegc
  Print a message for each garbage collection.

EXPERIMENTAL OPTIONS

-eager Perform eager class loading and linking.

-ie Inline methods with exceptions.

-in Activate inlining of methods.

-io Inline methods of foreign classes.

-ip Optimize argument renaming when inlining.

-iv Inline virtual methods (uses/turns -rt option on).

-oloop Optimize array accesses in loops.

-rt Use rapid type analysis.

-vta Use variable type analysis.

-xta Use X type analysis.

ENVIRONMENT VARIABLES

CLASSPATH
  A colon-separated list of directories and .jar files to search for user-defined classes.

BOOTCLASSPATH
  A colon-separated list of directories and .jar files searched by the bootstrap loader.

AUTHOR

CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO

Send mail to cacao@cacaojvm.org

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--> CACAO (1) 2012-09-03

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