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linux (4)

>> linux (4) ( FreeBSD man: Специальные файлы /dev/* )

Ключ linux обнаружен в базе ключевых слов.

BSD mandoc

NAME



linux

 - Linux ABI support

SYNOPSIS

To compile support for this ABI into the kernel, place the following line in your kernel configuration file:

options COMPAT_LINUX

Alternatively, to load the ABI as a module at boot time, place the following line in loader.conf5:

linux_load="YES"

DESCRIPTION

The module provides limited Linux ABI (application binary interface) compatibility for userland applications. The module provides the following significant facilities:

An image activator for correctly branded elf(5) executable images
Special signal handling for activated images
Linux to native system call translation

It is important to note that the Linux ABI support it not provided through an emulator. Rather, a true (albeit limited) ABI implementation is provided.

The following sysctl(8) tunable variables are available:

compat.linux.osname: Linux kernel operating system name.
compat.linux.osrelease: Linux kernel operating system release. Changing this to something else is discouraged on non-development systems, because it may change the way Linux programs work. Recent versions of GNU libc are known to use different syscalls depending on the value of this sysctl.
compat.linux.oss_version: Linux Open Sound System version.

The module can be linked into the kernel statically with the COMPAT_LINUX kernel configuration option or loaded as required. The following command will load the module if it is neither linked into the kernel nor already loaded as a module:

if ! kldstat -v | grep -E 'linux(aout|elf)' > /dev/null; then
        kldload linux > /dev/null 2>&1
fi

Note that dynamically linked Linux executables will require a suitable environment in /compat/linux Specifically, the Linux run-time linker's hints files should be correctly initialized. For this reason, it is common to execute the following commands to prepare the system to correctly run Linux executables:

if [ -x /compat/linux/sbin/ldconfig ]; then
        /compat/linux/sbin/ldconfig -r /compat/linux
fi

For information on loading the kernel loadable module automatically on system startup, see rc.conf5. This information applies regardless of whether the module is statically linked into the kernel or loaded as a module.