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NAME
       cloudabi, cloudabi32, cloudabi64 — CloudABI support


SYNOPSIS
       Support for 32-bit CloudABI executables can be compiled into the kernel by adding this line to the kernel
       configuration file:

             options COMPAT_CLOUDABI32

       Similarly, support for 64-bit CloudABI executables can be enabled by adding this line:

             options COMPAT_CLOUDABI64

       CloudABI support can also be loaded at boot time from loader.conf(5):

             cloudabi_load="YES"
             cloudabi32_load="YES"
             cloudabi64_load="YES"


DESCRIPTION
       CloudABI  is  a  POSIX-like pure capability-based runtime environment, similar to capsicum(4).  It can be
       used to develop applications that are cross-platform, easier  to  test,  and  hardened  against  security
       exploits.

       Support  for  CloudABI  on FreeBSD consists of three separate kernel modules.  The cloudabi kernel module
       implements all of the system calls that do not depend on data structures  that  differ  between  hardware
       architectures.

       The  cloudabi32  and  cloudabi64  kernel  modules provide implementations of all of the machine-dependent
       system calls, assuming that pointers stored in data structures are either 32 bits or  64  bits  in  size.
       These modules also provide the image activators that load and start ELF executables.

       Though  the cloudabi module can be loaded on any architecture supported by FreeBSD, the cloudabi32 module
       is only available on amd64, arm64, armv6, armv7 and i386.  The same  holds  for  the  cloudabi64  module,
       which is only available for amd64 and arm64.

       A full cross compilation toolchain for CloudABI is available in the devel/cloudabi-toolchain port.

       The  sysutils/cloudabi-utils  port  provides the cloudabi-run(1) utility.  cloudabi-run(1) can be used to
       safely execute CloudABI processes with access to a restricted set of resources.


SEE ALSO
       cloudabi-run(1), capsicum(4), linux(4), elf(5)

       CloudABI for FreeBSD: https://nuxi.nl/cloudabi/freebsd/.

       cloudlibc on GitHub: https://github.com/NuxiNL/cloudlibc.

       The CloudABI Ports Collection on GitHub: https://github.com/NuxiNL/cloudabi-ports.


HISTORY
       CloudABI support first appeared in FreeBSD 11.0.


AUTHORS
       Nuxi: https://nuxi.nl/.

Debian                                          November 30, 2017                                    CLOUDABI(4)