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65412a2710
NetBSD/sys/kern
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thorpej 65412a2710 Implement expansion of special "magic" strings in symlinks into 
system-specific values.  Submitted by Chris Demetriou in Nov 1995 (!)
in PR kern/1781, modified only slighly by me.

This is enabled on a per-mount basis with the MNT_MAGICLINKS mount
flag.  It can be enabled at mountroot() time by building the kernel
with the ROOTFS_MAGICLINKS option.

The following magic strings are supported by the implementation:

	@machine	value of MACHINE for the system
	@machine_arch	value of MACHINE_ARCH for the system
	@hostname	the system host name, as set with sethostname()
	@domainname	the system domain name, as set with setdomainname()
	@kernel_ident	the kernel config file name
	@osrelease	the releaes number of the OS
	@ostype		the name of the OS (always "NetBSD" for NetBSD)

Example usage:

	mkdir /arch/i386/bin
	mkdir /arch/sparc/bin
	ln -s /arch/@machine_arch/bin /bin
2005-06-23 00:30:28 +00:00
..
bufq_disksort.c lookup bufq using link_set rather than a switch statement. 2004-11-25 04:52:23 +00:00
bufq_fcfs.c lookup bufq using link_set rather than a switch statement. 2004-11-25 04:52:23 +00:00
bufq_priocscan.c bufq_priocscan_get: don't update state in the case of !remove. fix BUFQ_PEEK. 2005-03-03 05:00:22 +00:00
bufq_readprio.c lookup bufq using link_set rather than a switch statement. 2004-11-25 04:52:23 +00:00
cnmagic.c - add const. 2005-05-29 22:24:14 +00:00
core_elf32.c Rework the coredump code to have no explicit knownledge of how coredump 2005-06-10 05:10:12 +00:00
core_elf64.c
core_netbsd.c Rework the coredump code to have no explicit knownledge of how coredump 2005-06-10 05:10:12 +00:00
exec_aout.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
exec_conf.c First work on COMPAT_LINUX/amd64 2005-05-03 16:26:27 +00:00
exec_ecoff.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
exec_elf32.c - add const. 2005-05-29 22:24:14 +00:00
exec_elf64.c
exec_macho.c - add const. 2005-05-29 22:24:14 +00:00
exec_script.c Some changes in veriexec. 2005-05-19 20:16:19 +00:00
exec_subr.c - add const. 2005-05-29 22:24:14 +00:00
genlintstub.awk nuke trailing whitespace 2005-02-26 21:34:55 +00:00
init_main.c Implement expansion of special "magic" strings in symlinks into 2005-06-23 00:30:28 +00:00
init_sysctl.c Comment in new cp_id implementation was wrong since I abandoned 2005-06-17 23:53:21 +00:00
init_sysent.c Regen 2005-05-29 21:11:30 +00:00
kern_acct.c sys_acct: use VOP_SETATTR instead of VOP_TRUNCATE as the latter's 2004-12-13 08:46:43 +00:00
kern_clock.c Copyright maintenance. 2005-03-02 11:05:34 +00:00
kern_descrip.c - add const. 2005-05-29 22:24:14 +00:00
kern_drvctl.c add a "drvctl" pseudo-device as userland interface to the autoconf 2004-08-18 12:19:29 +00:00
kern_event.c - add const. 2005-05-29 22:24:14 +00:00
kern_exec.c Use the defined VERIEXEC_DIRECT instead of the (incorrect) 0 magic number. 2005-06-10 23:32:16 +00:00
kern_exit.c - add const. 2005-05-29 22:24:14 +00:00
kern_fork.c Add P_CLDSIGIGN, P_NOCLDSTOP and P_NOCLDWAIT to the list of flags we want 2005-05-17 19:22:19 +00:00
kern_kcont.c
kern_ksyms.c - add const. 2005-05-29 22:24:14 +00:00
kern_kthread.c
kern_ktrace.c - add const. 2005-05-29 22:24:14 +00:00
kern_lkm.c `lkmlookup()' is called with its name argument either from kernel or from 2005-04-12 14:13:16 +00:00
kern_lock.c Fix function variable names shadowing global declarations. 2005-06-01 13:12:49 +00:00
kern_lwp.c Don't panic when lwp_suspend finds an LWP on another CPU, just return 2005-02-12 21:39:00 +00:00
kern_malloc_debug.c merge yamt-km branch. 2005-04-01 11:59:21 +00:00
kern_malloc.c rename "kbucket" to "kmembuckets", for greater clarity. 2005-05-30 23:04:53 +00:00
kern_microtime.c cc_microset: #if 0 out a diagnositc printf. 2005-01-23 08:39:51 +00:00
kern_ntptime.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
kern_physio.c
kern_proc.c proclist_foreach_call: tweak an assertion to deal with the case that 2004-10-03 22:26:35 +00:00
kern_prot.c
kern_ras.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
kern_resource.c - add const. 2005-05-29 22:24:14 +00:00
kern_sa.c Revert previous ('_ncpus' is now 'ncpus' again). 2005-06-06 19:56:46 +00:00
kern_sig.c Rework the coredump code to have no explicit knownledge of how coredump 2005-06-10 05:10:12 +00:00
kern_subr.c - add const. 2005-05-29 22:24:14 +00:00
kern_synch.c - add const. 2005-05-29 22:24:14 +00:00
kern_sysctl.c Change the rest of the sysctl subsystem to use const consistently. 2005-06-20 02:49:18 +00:00
kern_systrace.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
kern_time.c - add const. 2005-05-29 22:24:14 +00:00
kern_timeout.c need a "const" 2005-06-01 12:27:15 +00:00
kern_uuid.c - add const. 2005-05-29 22:24:14 +00:00
kern_verifiedexec.c Fix logic in verbose printing. 2005-06-22 21:50:27 +00:00
kern_xxx.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
kgdb_stub.c Yes, it was a cool trick >20 years ago to use "0123456789abcdef"[a] to 2005-05-17 04:14:57 +00:00
Make.tags.inc
Makefile nuke trailing whitespace 2005-02-26 21:34:55 +00:00
makesyscalls.sh get rid of trailing spaces in the "created from" line (constructed by 2005-02-26 23:32:31 +00:00
subr_autoconf.c - add const. 2005-05-29 22:24:14 +00:00
subr_blist.c - add const. 2005-05-29 22:24:14 +00:00
subr_devsw.c
subr_disk_mbr.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
subr_disk.c - add const. 2005-05-29 22:24:14 +00:00
subr_evcnt.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
subr_extent.c Fix off-by-one bug which would cause a region at the end of the extent 2005-03-15 18:22:24 +00:00
subr_log.c - add const. 2005-05-29 22:24:14 +00:00
subr_pool.c Fix some locking issues: 2005-06-18 01:34:03 +00:00
subr_prf.c - add const. 2005-05-29 22:24:14 +00:00
subr_prof.c
subr_prop.c - add const. 2005-05-29 22:24:14 +00:00
subr_userconf.c - add const. 2005-05-29 22:24:14 +00:00
subr_xxx.c
sys_generic.c - add const. 2005-05-29 22:24:14 +00:00
sys_pipe.c merge yamt-km branch. 2005-04-01 11:59:21 +00:00
sys_pmc.c
sys_process.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
sys_socket.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
syscalls.c Regen 2005-05-29 21:11:30 +00:00
syscalls.conf
syscalls.master Argument for swapctl cannot be const, since it gets loaded with swap 2005-05-29 21:07:49 +00:00
sysv_ipc.c
sysv_msg.c merge yamt-km branch. 2005-04-01 11:59:21 +00:00
sysv_sem.c merge yamt-km branch. 2005-04-01 11:59:21 +00:00
sysv_shm.c merge yamt-km branch. 2005-04-01 11:59:21 +00:00
tty_bsdpty.c - add const. 2005-05-29 22:24:14 +00:00
tty_conf.c PR-30566: Poll must not return <sys/errno.h> values. 2005-06-21 14:01:11 +00:00
tty_ptm.c Cloning cleanup: 2004-11-30 04:25:43 +00:00
tty_pty.c PR-30566: Poll must not return <sys/errno.h> values. 2005-06-21 14:01:11 +00:00
tty_subr.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
tty_tb.c - add const. 2005-05-29 22:24:14 +00:00
tty_tty.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
tty.c Remove an extraneous TTY_UNLOCK. With a LOCKDEBUG kernel, sending FLUSHO 2005-06-11 22:42:24 +00:00
uipc_domain.c Properly fix the constipated lossage wrt -Wcast-qual and the sysctl 2005-06-09 02:19:59 +00:00
uipc_mbuf2.c In m_pulldown avoid a prepend to the next mbuf in the chain if the result 2005-05-06 09:40:40 +00:00
uipc_mbuf.c Since we decided "const struct mbuf *" would not do the right thing (tm), 2005-06-06 06:06:50 +00:00
uipc_proto.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
uipc_sem.c nuke trailing whitespace 2005-02-26 21:34:55 +00:00
uipc_socket2.c - add const. 2005-05-29 22:24:14 +00:00
uipc_socket.c Panic strings should not end with \n. 2005-05-08 18:44:39 +00:00
uipc_syscalls.c Close additional file descriptors if we set MSG_CTRUNC in a SCM_RIGHTS 2005-05-30 11:21:11 +00:00
uipc_usrreq.c uipc_usrreq: plug mbuf leak. 2005-06-16 14:36:42 +00:00
vfs_bio.c Properly fix the constipated lossage wrt -Wcast-qual and the sysctl 2005-06-09 02:19:59 +00:00
vfs_cache.c introduce a new function, cache_lookup_raw(), for filesystems which 2004-06-27 08:50:44 +00:00
vfs_getcwd.c Use ANSI function decls. 2005-06-05 23:47:48 +00:00
vfs_init.c Use ANSI function decls. 2005-06-05 23:47:48 +00:00
vfs_lockf.c Re-arrange slighty, eliminate prototypes that are unnecessary when using 2005-06-05 23:10:25 +00:00
vfs_lookup.c Implement expansion of special "magic" strings in symlinks into 2005-06-23 00:30:28 +00:00
vfs_subr.c - Avoid pollution of struct vnode. Save the fingerprint evaluation status 2005-06-19 18:22:36 +00:00
vfs_syscalls.c Implement expansion of special "magic" strings in symlinks into 2005-06-23 00:30:28 +00:00
vfs_vnops.c - Avoid pollution of struct vnode. Save the fingerprint evaluation status 2005-06-19 18:22:36 +00:00
vnode_if.c regen 2005-02-26 22:15:10 +00:00
vnode_if.sh remove some trailing spaces in generated output when removing $s from $NetBSD$ 2005-02-26 22:06:38 +00:00
vnode_if.src revert trailing whitespace change -- it had unintended consequences 2005-02-26 22:14:39 +00:00