baae0324b9
* move all exec-type specific information from struct emul to execsw[] and
provide single struct emul per emulation
* elf:
- kern/exec_elf32.c:probe_funcs[] is gone, execsw[] how has one entry
per emulation and contains pointer to respective probe function
- interp is allocated via MALLOC() rather than on stack
- elf_args structure is allocated via MALLOC() rather than malloc()
* ecoff: the per-emulation hooks moved from alpha and mips specific code
to OSF1 and Ultrix compat code as appropriate, execsw[] has one entry per
emulation supporting ecoff with appropriate probe function
* the makecmds/probe functions don't set emulation, pointer to emulation is
part of appropriate execsw[] entry
* constify couple of structures
157 lines
4.6 KiB
C
157 lines
4.6 KiB
C
/* $NetBSD: kern_xxx.c,v 1.45 2000/11/21 00:37:56 jdolecek Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1989, 1993
|
|
* The Regents of the University of California. 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.
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
* @(#)kern_xxx.c 8.3 (Berkeley) 2/14/95
|
|
*/
|
|
|
|
#include "opt_syscall_debug.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/reboot.h>
|
|
#include <uvm/uvm_extern.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/syscallargs.h>
|
|
|
|
/* ARGSUSED */
|
|
int
|
|
sys_reboot(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct sys_reboot_args /* {
|
|
syscallarg(int) opt;
|
|
syscallarg(char *) bootstr;
|
|
} */ *uap = v;
|
|
int error;
|
|
char *bootstr, bs[128];
|
|
|
|
if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* Only use the boot string if RB_STRING is set.
|
|
*/
|
|
if ((SCARG(uap, opt) & RB_STRING) &&
|
|
(error = copyinstr(SCARG(uap, bootstr), bs, sizeof(bs), 0)) == 0)
|
|
bootstr = bs;
|
|
else
|
|
bootstr = NULL;
|
|
/*
|
|
* Not all ports use the bootstr currently.
|
|
*/
|
|
cpu_reboot(SCARG(uap, opt), bootstr);
|
|
return (0);
|
|
}
|
|
|
|
#ifdef SYSCALL_DEBUG
|
|
#define SCDEBUG_CALLS 0x0001 /* show calls */
|
|
#define SCDEBUG_RETURNS 0x0002 /* show returns */
|
|
#define SCDEBUG_ALL 0x0004 /* even syscalls that are implemented */
|
|
#define SCDEBUG_SHOWARGS 0x0008 /* show arguments to calls */
|
|
|
|
#if 0
|
|
int scdebug = SCDEBUG_CALLS|SCDEBUG_RETURNS|SCDEBUG_SHOWARGS;
|
|
#else
|
|
int scdebug = SCDEBUG_CALLS|SCDEBUG_RETURNS|SCDEBUG_SHOWARGS|SCDEBUG_ALL;
|
|
#endif
|
|
|
|
void
|
|
scdebug_call(p, code, args)
|
|
struct proc *p;
|
|
register_t code, args[];
|
|
{
|
|
const struct sysent *sy;
|
|
const struct emul *em;
|
|
int i;
|
|
|
|
if (!(scdebug & SCDEBUG_CALLS))
|
|
return;
|
|
|
|
em = p->p_emul;
|
|
sy = &em->e_sysent[code];
|
|
if (!(scdebug & SCDEBUG_ALL || code < 0 || code >= em->e_nsysent ||
|
|
sy->sy_call == sys_nosys))
|
|
return;
|
|
|
|
printf("proc %d (%s): %s num ", p->p_pid, p->p_comm, em->e_name);
|
|
if (code < 0 || code >= em->e_nsysent)
|
|
printf("OUT OF RANGE (%d)", code);
|
|
else {
|
|
printf("%d call: %s", code, em->e_syscallnames[code]);
|
|
if (scdebug & SCDEBUG_SHOWARGS) {
|
|
printf("(");
|
|
for (i = 0; i < sy->sy_argsize / sizeof(register_t);
|
|
i++)
|
|
printf("%s0x%lx", i == 0 ? "" : ", ",
|
|
(long)args[i]);
|
|
printf(")");
|
|
}
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void
|
|
scdebug_ret(p, code, error, retval)
|
|
struct proc *p;
|
|
register_t code;
|
|
int error;
|
|
register_t retval[];
|
|
{
|
|
const struct sysent *sy;
|
|
const struct emul *em;
|
|
|
|
if (!(scdebug & SCDEBUG_RETURNS))
|
|
return;
|
|
|
|
em = p->p_emul;
|
|
sy = &em->e_sysent[code];
|
|
if (!(scdebug & SCDEBUG_ALL || code < 0 || code >= em->e_nsysent ||
|
|
sy->sy_call == sys_nosys))
|
|
return;
|
|
|
|
printf("proc %d (%s): %s num ", p->p_pid, p->p_comm, em->e_name);
|
|
if (code < 0 || code >= em->e_nsysent)
|
|
printf("OUT OF RANGE (%d)", code);
|
|
else
|
|
printf("%d ret: err = %d, rv = 0x%lx,0x%lx", code,
|
|
error, (long)retval[0], (long)retval[1]);
|
|
printf("\n");
|
|
}
|
|
#endif /* SYSCALL_DEBUG */
|