glibc/hurd/hurdstartup.c
Roland McGrath 75cd5204dd Wed May 1 09:10:04 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* time/strftime.c: Use canonical autoconf nugget for time.h+sys/time.h
	include.

Mon Apr 29 02:48:26 1996  Ulrich Drepper  <drepper@cygnus.com>

	* ctype/ctype-info.c: (__ctype_width): New variable.
	(__ctype_names): Initialize correctly without offset.

	* locale/C-collate.c, locale/C-ctype.c,
	locale/C-messages.c, locale/C-monetary.c,
	locale/C-numeric.c, locale/C-time.c: Change copyright.

	* locale/C-ctype.c (_nl_C_LC_CTYPE_class32): Correct
	endianess for initialization value.

	* locale/lc-ctype.c (current): Add parameter for offset.
	(__ctype32_b, __ctype_width): Add initialization for these
	variables.

	* locale/programs/charmap.c: Finish support for WIDTH information.
	(new_width): New function.

	* locale/programs/charset.h (width_rule): new data structure.
	(charset_t): Add elements for width information.

	* locale/programs/ld-ctype.c (locale_ctype_t): Add element
	for width information.
	(allocate_arrays): Add new argument for charset.
	(ctype_finish): Make sure all characters named in charset
	width table are known to name table.
	(ctype_output): Correct handling of class and map name
	information and write out width information.
	(find_idx): Prepare for being called with NULL pointer as
	TABLE argument.  This means only allocate name entry.
	(allocate_arrays): Correct handling of array element -1.
	Because EOF == -1 the value of element 127 must *not* be
	mirrored here.
	Fill width information from charset tables.

	* locale/programs/localedef.c (main): Correct loop over all
	categories after change of order from Thu Mar 28 14:22:51 1996.
	Add new charset argument to call of `write_all_categories'.

	* locale/programs/locales.h (ctype_finish, ctype_output): New
	charset argument.

	* locale/programs/locfile.c (write_all_categories): Call
	`ctype_output' with additional argument charset.

	* posix/getconf.c (vars): Add _POSIX_SYNC_IO, _POSIX_ASYNC_IO,
	and _POSIX_PRIO_IO definitions.

	* posix/posix2_lim.h: Add definition of _POSIX2_CHARCLASS_NAME_MAX
	and CHARCLASS_NAME_MAX.

	* posix/unistd.h: Document _POSIX_SYNC_IO, _POSIX_ASYNC_IO,
	and _POSIX_PRIO_IO.

	* stdlib/grouping.h: Prepare for use in wide string functions.

	* stdlib/stdlib.h: Correct prototypes for __strto*_internal
	functions.

	* stdlib/strtod.c: Extend for use as `wcsto{f,d,ld}'.

	* stdlib/strtol.c: Extend for use as `wcsto{l,ul,q,uq}'.

	* string/strcoll.c: Extend for use as `wcscoll'.

	* string/strxfrm.c: Extend for use as `wcsxfrm'.

	* sysdeps/generic/confname.h: Add definition of _PC_SYNC_IO,
	_PC_ASYNC_IO, _PC_PRIO_IO and _SC_CHARCLASS_NAME_MAX.

	* sysdeps/generic/stpncpy.c: Correct return value.

	* sysdeps/posix/fpathconf.c: Add handling of _PC_SYNC_IO,
	_PC_ASYNC_IO, and _PC_PRIO_IO.

	* sysdeps/posix/sysconf.c: Add handling of _SC_REALTIME_SIGNALS,
	_SC_PRIORITY_SCHEDULING, _SC_TIMERS, _SC_ASYNCHRONOUS_IO,
	_SC_PRIORITIZED_IO, _SC_SYNCHRONIZED_IO, _SC_FSYNC,
	_SC_MAPPED_FILES, _SC_MEMLOCK, _SC_MEMLOCK_RANGE,
	_SC_MEMORY_PROTECTION, _SC_MESSAGE_PASSING, _SC_SEMAPHORES,
	_SC_SHARED_MEMORY_OBJECTS, and _SC_CHARCLASS_NAME_MAX.
	* sysdeps/stub/sysconf.c: Ditto.
	* sysdeps/unix/sysv/sysv4/sysconf.c: Ditto.

	* sysdeps/unix/sysv/linux/Dist: Add sys/sysctl.h.

	* sysdeps/unix/sysv/linux/Makefile [subdir == misc]
	(sysdep_routines): Add s_sysctl and sysctl.

	* sysdeps/unix/sysv/linux/sys/mman.h: Add declaration of mremap.

	* sysdeps/unix/sysv/linux/sys/socket.h: New file.  Wrapper
	around kernel header.

	* sysdeps/unix/sysv/linux/sys/sysctl.h: New file.  Define
	interface to `sysctl' function.

	* sysdeps/unix/sysv/linux/syscalls.list: Add mremap and _sysctl.

	* sysdeps/unix/sysv/linux/sysconf.c: Add handling of
	_SC_CHARCLASS_NAME_MAX.

	* sysdeps/unix/sysv/linux/sysctl.c: new file.  Implement caller
	of _sysctl system call.

	* sysvipc/Makefile (routines): Add ftok.

	* sysvipc/ftok.c: use variable `proj_id' not `id'.  Patch by
	David Mosberger-Tang.

	* wcsmbs/Makefile (routines): Add wcpcpy, wcpncpy, wcstol,
        wcstoul, wcstoq, wcstouq, wcstod, wcstold, wcstof, wcscoll,
        wcsxfrm, wcwidth, and wcswidth.

	* wcsmbs/wchar.h: Add declarations for wcpcpy, wcpncpy, wcstol,
        wcstoul, wcstoq, wcstouq, wcstod, wcstold, wcstof, wcscoll,
        wcsxfrm, wcwidth, and wcswidth.
	Declare internal interfaces for wcsto* functions.
	[OPTIMIZE]: Define inline functions for wcsto* functions to
	call internal interface functions.

	* wcsmbs/wcpcpy.c, wcsmbs/wcpncpy.c: New files.  Implement non-
	standard function equivalent to stpcpy/stpncpy.

	* wcsmbs/wcscoll.c: Implement `wcscoll' function by using
        `strcoll' implementation.

	* wcsmbs/wcscpy.c, wcsmbs/wcsncpy.c: Use wint_t instead of
        wchar_t.

	* wcsmbs/wcstod.c: Implement `wcstod' function by using `strtod'
        implementation.
	* wcsmbs/wcstof.c: Same for `wcstof'.
	* wcsmbs/wcstold.c: Same for `strtold'.

	* wcsmbs/wcstol.c: Implement `wcstol' function by using `strtol'
        implementation.
	* wcsmbs/wcstoq.c: Same for `wcstoq'.
	* wcsmbs/wcstoul.c: Same for `wcstoul'.
	* wcsmbs/wcstouq.c: Same for `wcstouq'.

	* wcsmbs/wcswidth.c: Implement `wcswidth' function from X/Open
        CAE.
	* wcsmbs/wcwidth.c: Ditto for `wcwidth'.
	* wcsmbs/wcwidth.h: Common function for definitions of above two
	functions.

	* wcsmbs/wcsxfrm.c: Implement `wcsxfrm function by using
        `strxfrm implementation.

	* wctype/wctype.c: Remove case for `wctype_t' being 16 bit type.

	* wctype/wctype.h (wint_t): Protect against multiple definition.
	(wctype_t): Always define as `unsigned long int'.

	* wctype.h: New file.  Wrapper around wctype/wctype.h.

	* hurd/hurdstartup.c (_hurd_split_args): Function removed.
	(_hurd_startup): Use argz functions.

	* hurd/hurdexec.c: Use argz functions.
1996-05-01 13:55:18 +00:00

198 lines
6.5 KiB
C

/* Initial program startup for running under the GNU Hurd.
Copyright (C) 1991, 92, 93, 94, 95, 96 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 <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <hurd.h>
#include <hurd/exec_startup.h>
#include <sysdep.h>
#include <hurd/threadvar.h>
#include <unistd.h>
#include <elf.h>
#include "set-hooks.h"
#include "hurdmalloc.h" /* XXX */
#include "hurdstartup.h"
#include <argz.h>
mach_port_t *_hurd_init_dtable;
mach_msg_type_number_t _hurd_init_dtablesize;
unsigned int __hurd_threadvar_max;
unsigned long int __hurd_threadvar_stack_mask;
unsigned long int __hurd_threadvar_stack_offset;
/* These are set up by _hurdsig_init. */
unsigned long int __hurd_sigthread_stack_base;
unsigned long int __hurd_sigthread_stack_end;
unsigned long int *__hurd_sigthread_variables;
extern void __mach_init (void);
/* Entry point. This is the first thing in the text segment.
The exec server started the initial thread in our task with this spot the
PC, and a stack that is presumably big enough. We do basic Mach
initialization so mig-generated stubs work, and then do an exec_startup
RPC on our bootstrap port, to which the exec server responds with the
information passed in the exec call, as well as our original bootstrap
port, and the base address and size of the preallocated stack.
If using cthreads, we are given a new stack by cthreads initialization and
deallocate the stack set up by the exec server. On the new stack we call
`start1' (above) to do the rest of the startup work. Since the stack may
disappear out from under us in a machine-dependent way, we use a pile of
static variables to communicate the information from exec_startup to start1.
This is unfortunate but preferable to machine-dependent frobnication to copy
the state from the old stack to the new one. */
void
_hurd_startup (void **argptr, void (*main) (int *data))
{
error_t err;
mach_port_t in_bootstrap;
char *args, *env;
mach_msg_type_number_t argslen, envlen;
struct hurd_startup_data data;
char **argv, **envp;
int argc, envc;
int *argcptr;
if (err = __task_get_special_port (__mach_task_self (), TASK_BOOTSTRAP_PORT,
&in_bootstrap))
LOSE;
if (in_bootstrap != MACH_PORT_NULL)
{
/* Call the exec server on our bootstrap port and
get all our standard information from it. */
argslen = envlen = 0;
data.dtablesize = data.portarraysize = data.intarraysize = 0;
err = __exec_startup_get_info (in_bootstrap,
&data.user_entry,
&data.phdr, &data.phdrsz,
&data.stack_base, &data.stack_size,
&data.flags,
&args, &argslen,
&env, &envlen,
&data.dtable, &data.dtablesize,
&data.portarray, &data.portarraysize,
&data.intarray, &data.intarraysize);
__mach_port_deallocate (__mach_task_self (), in_bootstrap);
}
if (err || in_bootstrap == MACH_PORT_NULL || (data.flags & EXEC_STACK_ARGS))
{
/* Either we have no bootstrap port, or the RPC to the exec server
failed, or whoever started us up passed the flag saying args are
on the stack. Try to snarf the args in the canonical Mach way.
Hopefully either they will be on the stack as expected, or the
stack will be zeros so we don't crash. */
argcptr = (int *) argptr;
argc = argcptr[0];
argv = (char **) &argcptr[1];
envp = &argv[argc + 1];
envc = 0;
while (envp[envc])
++envc;
}
else
{
/* Turn the block of null-separated strings we were passed for the
arguments and environment into vectors of pointers to strings. */
/* Count up the arguments so we can allocate ARGV. */
argc = __argz_count (args, argslen);
/* Count up the environment variables so we can allocate ENVP. */
envc = __argz_count (env, envlen);
/* There were some arguments. Allocate space for the vectors of
pointers and fill them in. We allocate the space for the
environment pointers immediately after the argv pointers because
the ELF ABI will expect it. */
argcptr = __alloca (sizeof (int) +
(argc + 1 + envc + 1) * sizeof (char *) +
sizeof (struct hurd_startup_data));
*argcptr = argc;
argv = (void *) (argcptr + 1);
__argz_extract (args, argslen, argv);
/* There was some environment. */
envp = &argv[argc + 1];
__argz_extract (env, envlen, envp);
}
if (err || in_bootstrap == MACH_PORT_NULL)
{
/* Either we have no bootstrap port, or the RPC to the exec server
failed. Set all our other variables to have empty information. */
data.flags = 0;
args = env = NULL;
argslen = envlen = 0;
data.dtable = NULL;
data.dtablesize = 0;
data.portarray = NULL;
data.portarraysize = 0;
data.intarray = NULL;
data.intarraysize = 0;
}
else if ((void *) &envp[envc + 1] == argv[0])
{
/* The arguments arrived on the stack from the kernel, but our
protocol requires some space after them for a `struct
hurd_startup_data'. Move them. */
struct
{
int count;
char *argv[argc + 1];
char *envp[envc + 1];
struct hurd_startup_data data;
} *args = alloca (sizeof *args);
if ((void *) &args[1] == (void *) argcptr)
args = alloca (-((char *) &args->data - (char *) args));
memmove (args, argcptr, (char *) &args->data - (char *) args);
argcptr = (void *) args;
argv = args->argv;
envp = args->envp;
}
{
struct hurd_startup_data *d = (void *) &envp[envc + 1];
if ((void *) d != argv[0])
{
*d = data;
_hurd_init_dtable = d->dtable;
_hurd_init_dtablesize = d->dtablesize;
}
(*main) (argcptr);
}
/* Should never get here. */
LOSE;
abort ();
}