home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Language/OS - Multiplatform Resource Library
/
LANGUAGE OS.iso
/
gnu
/
glibc108.gz
/
glibc108
/
glibc-1.08.1
/
hurd
/
hurdinit.c
< prev
next >
Wrap
C/C++ Source or Header
|
1994-05-25
|
5KB
|
141 lines
/* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sys/stat.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/port.h>
#include "set-hooks.h"
#include "hurdmalloc.h" /* XXX */
struct hurd_port *_hurd_ports;
unsigned int _hurd_nports;
mode_t _hurd_umask;
void _hurd_proc_init (char **argv);
DEFINE_HOOK (_hurd_subinit, (void));
/* Initialize the library data structures from the
ints and ports passed to us by the exec server.
PORTARRAY and INTARRAY are vm_deallocate'd. */
void
_hurd_init (int flags, char **argv,
mach_port_t *portarray, size_t portarraysize,
int *intarray, size_t intarraysize)
{
int i;
_hurd_ports = malloc (portarraysize * sizeof (*_hurd_ports));
if (_hurd_ports == NULL)
__libc_fatal ("Can't allocate _hurd_ports\n");
_hurd_nports = portarraysize;
/* See what ports we were passed. */
for (i = 0; i < portarraysize; ++i)
_hurd_port_init (&_hurd_ports[i], portarray[i]);
/* When the user asks for the bootstrap port,
he will get the one the exec server passed us. */
__task_set_special_port (__mach_task_self (), TASK_BOOTSTRAP_PORT,
portarray[INIT_PORT_BOOTSTRAP]);
/* Tell the proc server we exist, if it does. */
if (portarray[INIT_PORT_PROC] != MACH_PORT_NULL)
_hurd_proc_init (argv);
if (intarraysize > INIT_UMASK)
_hurd_umask = intarray[INIT_UMASK] & 0777;
else
_hurd_umask = CMASK;
/* All done with init ints and ports. */
__vm_deallocate (__mach_task_self (),
(vm_address_t) intarray,
intarraysize * sizeof (int));
__vm_deallocate (__mach_task_self (),
(vm_address_t) portarray,
portarraysize * sizeof (mach_port_t));
if (flags & EXEC_SECURE)
/* XXX if secure exec, elide environment variables
which the library uses and could be security holes.
CORESERVER, COREFILE
*/ ;
/* Call other things which want to do some initialization. These are not
on the __libc_subinit hook because things there like to be able to
assume the availability of the POSIX.1 services we provide. */
RUN_HOOK (_hurd_subinit, ());
}
#include <hurd/signal.h>
/* The user can do "int _hide_arguments = 1;" to make
sure the arguments are never visible with `ps'. */
int _hide_arguments, _hide_environment;
/* Hook for things which should be initialized as soon as the proc
server is available. */
DEFINE_HOOK (_hurd_proc_subinit, (void));
/* Do startup handshaking with the proc server just installed in _hurd_ports.
Call _hurdsig_init to set up signal processing. */
void
_hurd_proc_init (char **argv)
{
mach_port_t oldmsg;
struct hurd_userlink ulink;
process_t procserver;
/* Initialize the signal code; Mach exceptions will become signals. */
_hurdsig_init ();
/* The signal thread is now prepared to receive messages.
It is safe to give the port to the proc server. */
procserver = _hurd_port_get (&_hurd_ports[INIT_PORT_PROC], &ulink);
/* Give the proc server our message port. */
__proc_setmsgport (procserver, _hurd_msgport, &oldmsg);
if (oldmsg != MACH_PORT_NULL)
/* Deallocate the old msg port we replaced. */
__mach_port_deallocate (__mach_task_self (), oldmsg);
/* Tell the proc server where our args and environment are. */
__proc_setprocargs (procserver,
_hide_arguments ? 0 : (vm_address_t) argv,
_hide_environment ? 0 : (vm_address_t) __environ);
_hurd_port_free (&_hurd_ports[INIT_PORT_PROC], &ulink, procserver);
/* Initialize proc server-assisted fault recovery for the signal thread. */
_hurdsig_fault_init ();
/* Call other things which want to do some initialization. These are not
on the _hurd_subinit hook because things there assume that things done
here, like _hurd_pid, are already initialized. */
RUN_HOOK (_hurd_proc_subinit, ());
}