1#!/bin/sh
2#
3# $FreeBSD$
4#
5
6# PROVIDE: linux
7# REQUIRE: archdep
8# KEYWORD: nojail
9
10. /etc/rc.subr
11
12name="linux"
13desc="Enable Linux ABI"
14rcvar="linux_enable"
15start_cmd="${name}_start"
16stop_cmd=":"
17
18unmounted()
19{
20	[ `stat -f "%d" "$1"` == `stat -f "%d" "$1/.."` -a \
21	  `stat -f "%i" "$1"` != `stat -f "%i" "$1/.."` ]
22}
23
24linux_start()
25{
26	local _emul_path _tmpdir
27
28	load_kld -e 'linux(aout|elf)' linux
29	case `sysctl -n hw.machine_arch` in
30	amd64)
31		load_kld -e 'linux64elf' linux64
32		;;
33	esac
34	if [ -x /compat/linux/sbin/ldconfigDisabled ]; then
35		_tmpdir=`mktemp -d -t linux-ldconfig`
36		/compat/linux/sbin/ldconfig -C ${_tmpdir}/ld.so.cache
37		if ! cmp -s ${_tmpdir}/ld.so.cache /compat/linux/etc/ld.so.cache; then
38			cat ${_tmpdir}/ld.so.cache > /compat/linux/etc/ld.so.cache
39		fi
40		rm -rf ${_tmpdir}
41	fi
42
43	# Linux uses the pre-pts(4) tty naming scheme.
44	load_kld pty
45
46	# Handle unbranded ELF executables by defaulting to ELFOSABI_LINUX.
47	if [ `sysctl -ni kern.elf64.fallback_brand` -eq "-1" ]; then
48		sysctl kern.elf64.fallback_brand=3 > /dev/null
49	fi
50
51	if [ `sysctl -ni kern.elf32.fallback_brand` -eq "-1" ]; then
52		sysctl kern.elf32.fallback_brand=3 > /dev/null
53	fi
54
55	if checkyesno linux_mounts_enable; then 
56		_emul_path="/compat/linux"
57		unmounted "${_emul_path}/proc" && mount -t linprocfs linprocfs "${_emul_path}/proc"
58		unmounted "${_emul_path}/sys" && mount -t linsysfs linsysfs "${_emul_path}/sys"
59		unmounted "${_emul_path}/dev" && mount -t devfs devfs "${_emul_path}/dev"
60		unmounted "${_emul_path}/dev/fd" && mount -o linrdlnk -t fdescfs fdescfs "${_emul_path}/dev/fd"
61		unmounted "${_emul_path}/dev/shm" && mount -o mode=1777 -t tmpfs tmpfs "${_emul_path}/dev/shm"
62		true
63	fi
64}
65
66load_rc_config $name
67run_rc_command "$1"
68