freebsd-skq/lkm/linux/linux.c
dufault 7485dac765 Make MOD_* macros almost consistent:
Use the name argument almost the same in all LKM types.  Maintain
the current behavior for the external (e.g., modstat) name for DEV,
EXEC, and MISC types being #name ## "_mod" and SYCALL and VFS only
#name.  This is a candidate for change and I vote just the name without
the "_mod".

Change the DISPATCH macro to MOD_DISPATCH for consistency with the
other macros.

Add an LKM_ANON #define to eliminate the magic -1 and associated
signed/unsigned warnings.

Add MOD_PRIVATE to support wcd.c's poking around in the lkm structure.

Change source in tree to use the new interface.

Reviewed by:	Bruce Evans
1997-04-06 10:49:22 +00:00

70 lines
2.4 KiB
C

/*-
* Copyright (c) 1994 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: linux.c,v 1.10 1997/02/22 12:48:31 peter Exp $
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/exec.h>
#include <sys/conf.h>
#include <sys/sysent.h>
#include <sys/lkm.h>
#include <sys/imgact_elf.h>
#include "i386/linux/linux.h"
extern const struct execsw linux_execsw;
MOD_EXEC(linux, -1, &linux_execsw);
extern Elf32_Brandinfo linux_brand;
static int
linux_load(struct lkm_table *lkmtp, int cmd)
{
if (elf_insert_brand_entry(&linux_brand))
uprintf("Could not install ELF interpreter entry\n");
uprintf("Linux emulator installed\n");
return 0;
}
static int
linux_unload(struct lkm_table *lkmtp, int cmd)
{
if (elf_remove_brand_entry(&linux_brand))
uprintf("Could not deinstall ELF interpreter entry\n");
uprintf("Linux emulator removed\n");
return 0;
}
int
linux_mod(struct lkm_table *lkmtp, int cmd, int ver)
{
MOD_DISPATCH(linux,lkmtp, cmd, ver,
linux_load, linux_unload, lkm_nullcmd);
}