HALCOMPILE(1)

NAME
halcompile - Build, compile and install LinuxCNC HAL components

SYNOPSIS

halcompile [--compile|--preprocess|--document|--adoc|--view-doc] compfile...

sudo halcompile [--install|--install-doc] compfile...

halcompile --compile --userspace cfile...

sudo halcompile --install --userspace cfile...

sudo halcompile --install --userspace pyfile...

When personalities are used in a comp file, HAL instances are exported sequentially (typically by the mutually exclusive count= or names= parameters). If the number of exports exceeds the maximum number of personalities, subsequent personalities are assigned modulo the maximum number of personalities allowed.

By default, the maximum number of personalities is 64. To alter this limit, use the --personalities= option with halcompile. For example, to set the maximum of personality items to 4: [sudo] halcompile --personalities=4 --install ...

Do not use [sudo] for RIP installation.

OPTIONS

-a, --adoc
    Extract only asciidoc format documentation from the component.

-c, --compile
    Compile a component or C-source module.

-d, --document
    Extract man-page format documentation from the component (builds asciidoc and then converts to manpage). This option requires asciidoctor(1) or a2x(1) to be installed on your system.

-h, -?, --help
    Show a brief usage message and exit.

-i, --install
    Build and install a component.

-J, --view-doc
    Deprecated. Live view the manpage of the component (builds asciidoc, converts to manpage and runs man(1)). This option requires asciidoctor(1) or a2x(1) to be installed on your system.

-j, --install-doc
    Install the man-page documentation in usr/share/man1 or usr/share/man9, depending whether this is a userspace or realtime component.

-k file, --keep-adoc=file
    Keep the generated asciidoc file when generating manpage documentation. The file is saved to file. You cannot specify multiple input files when using this option and it has no effect when only asciidoc formatted documentation is requested using the -a or --adoc option.

-l, --require-license
    Obsolete. The component is always required to have a licence tag.

-o file, --outfile=file
    Write output to file. Can only be used with --preprocess, --adoc and --document processing.

-P int, --personalities=int (default: 64)
    Set the maximum number of personalities in the component.

-p, --preprocess
    Only generate a C-file from the component file.

-U, --unix
    Require the source to have unix-style NL-only line endings.

-u, --userspace
    Create a userspace C-source (non-realtime). Default is to build realtime components.

--extra-compile-args=args
    Extra arguments passed to the C-compiler.

--extra-link-args=args
    Extra arguments passed to the linker.

DESCRIPTION

halcompile performs many different functions:

    • Compile .comp and .c files into .so or .ko HAL realtime components (the --compile flag)

    • Compile .comp and .c files into HAL non-realtime components (the --compile --userspace flag)

    • Preprocess .comp files into .c files (the --preprocess flag)

    • Extract documentation from .comp files into asciidoc or manpage section 1 or 9 files (the --adoc and --document flags)

    • Display documentation from .comp files onscreen (the --view-doc flag)

    • Compile and install .comp and .c files into the proper directory for HAL realtime components (the --install flag), which may require sudo to write to system directories.

    • Install .c and .py files into the proper directory for HAL non-realtime components (the --install --userspace flag), which may require sudo to write to system directories.

    • Extract documentation from .comp files into .1 or .9 manpage files in the proper system directory (the --install flag), which may require sudo to write to system directories.

    • Preprocess .comp files into .c files (the --preprocess flag)

SEE ALSO

    • Halcompile / HAL Component Generator in the LinuxCNC documentation for a full description of the .comp syntax, along with examples

    • pydoc, HAL and Creating Non-realtime Python Components in the LinuxCNC documentation for documentation on the Python interface to HAL components