glibc/hurd/report-wait.c

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/* Report on what a thread in our task is waiting for.
Copyright (C) 1996 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 <hurd.h>
#include <hurd/signal.h>
#include <hurd/fd.h>
#include <string.h>
#include <assert.h>
#include <hurd/msg_server.h>
#include "thread_state.h"
#include "intr-msg.h"
static void
describe_number (string_t description, const char *flavor, unsigned long int i)
{
unsigned long int j;
char *p = __stpcpy (description, flavor);
/* Allocate space for the number at the end of DESCRIPTION. */
for (j = i; j >= 10; j /= 10)
p++;
p[1] = '\0';
do
{
*p-- = '0' + i % 10;
i /= 10;
} while (i != 0);
assert (*p == '#');
}
static void
describe_port (string_t description, mach_port_t port)
{
int i;
if (port == __mach_task_self ())
{
strcpy (description, "task-self");
return;
}
for (i = 0; i < _hurd_nports; ++i)
if (port == _hurd_ports[i].port)
{
describe_number (description, "init#", i);
return;
}
if (_hurd_init_dtable)
{
for (i = 0; i < _hurd_init_dtablesize; ++i)
if (port == _hurd_init_dtable[i])
{
describe_number (description, "fd#", i);
return;
}
}
else if (_hurd_dtable)
{
for (i = 0; i < _hurd_dtablesize; ++i)
if (_hurd_dtable[i] == NULL)
continue;
else if (port == _hurd_dtable[i]->port.port)
{
describe_number (description, "fd#", i);
return;
}
else if (port == _hurd_dtable[i]->ctty.port)
{
describe_number (description, "bgfd#", i);
return;
}
}
describe_number (description, "port#", port);
}
/* Common defn so we don't link in the itimer code unnecssarily. */
thread_t _hurd_itimer_thread; /* XXX */
kern_return_t
_S_msg_report_wait (mach_port_t msgport, thread_t thread,
string_t description, int *msgid)
{
*msgid = 0;
if (thread == _hurd_msgport_thread)
/* Cute. */
strcpy (description, "msgport");
else if (thread == _hurd_itimer_thread)
strcpy (description, "itimer");
else
{
/* Make sure this is really one of our threads. */
struct hurd_sigstate *ss;
__mutex_lock (&_hurd_siglock);
for (ss = _hurd_sigstates; ss != NULL; ss = ss->next)
if (ss->thread == thread)
break;
__mutex_unlock (&_hurd_siglock);
if (ss == NULL)
/* To hell with you. */
return EINVAL;
if (ss->suspended != MACH_PORT_NULL)
strcpy (description, "sigsuspend");
else
{
/* Examine the thread's state to see if it is blocked in an RPC. */
struct machine_thread_state state;
mach_msg_type_number_t count = MACHINE_THREAD_STATE_COUNT;
error_t err;
err = __thread_get_state (thread, MACHINE_THREAD_STATE_FLAVOR,
(integer_t *) &state, &count);
if (err)
return err;
assert (count == MACHINE_THREAD_STATE_COUNT);
if (SYSCALL_EXAMINE (&state, msgid))
{
/* Blocked in a system call. */
if (*msgid == -25)
/* mach_msg system call. Examine its parameters. */
describe_port (description, MSG_EXAMINE (&state, msgid));
else
strcpy (description, "kernel");
}
else
description[0] = '\0';
}
}
__mach_port_deallocate (__mach_task_self (), thread);
return 0;
}
Tue May 7 19:00:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * string/argz-extract.c: Remove const from decl. * string/argz.h: Here too. * Makeconfig (version.mk): Fix regexp in sed cmd. Depend on $(..)Makeconfig. * GMP code updated from gmp-2.0 release. * stdlib/Makefile (mpn-routines): Removed add_1, added inlines. * sysdeps/generic/add_1.c: File removed. * stdlib/strtod.c: mp_limb is now mp_limb_t. * stdlib/fpioconst.c, stdlib/fpioconst.h: Likewise. * stdio-common/_itoa.c: Likewise. * stdio-common/printf_fp.c: Likewise. Don't include ansidecl.h. * sysdeps/mach/hurd/getcwd.c: Use io_identity instead of io_stat. * shlib-versions: New file. * Makerules (soversions.mk): New target, include file generated from shlib-versions. Moved shared library rules before installation rules. Rewrote shared library installation rules for versioned libraries. * math/Makefile (libm.so-version): Variable removed. * sysdeps/mach/hurd/i386/exc2signal.c: Use struct hurd_signal_detail. * hurd/report-wait.c (_S_msg_describe_ports): New function. * configure.in: Add AC_PROG_LN_S check. * config.make.in (LN_S): New variable. Sun May 5 03:10:44 1996 Ulrich Drepper <drepper@cygnus.com> * misc/efgcvt_r.c (ecvt_r): Work aroung gcc bug. gcc does not know about weak aliases now and optimizes necessary `if' statement away. * posix/unistd.h: Add swapoff prototype. * sysdeps/generic/confname.h: Add even more POSIX.4 symbols. * sysdeps/posix/fpathconf.c (__fpathconf): Get information for _PC_PATH_MAX from fstatfs function if available. * sysdeps/posix/sysconf.c: Add code to handle _SC_AIO_LISTIO_MAX, _SC_AIO_MAX, _SC_AIO_PRIO_DELTA_MAX, _SC_DELAYTIMER_MAX, _SC_MQ_OPEN_MAX, _SC_MQ_PRIO_MAX, _SC_RTSIG_MAX, _SC_SEM_NSEMS_MAX, _SC_SEM_VALUE_MAX, _SC_SIGQUEUE_MAX, and _SC_TIMER_MAX. * sysdeps/unix/sysv/sysv4/sysconf.c: Ditto. * sysdeps/stub/swapoff.c: New file. Stub version for swapoff function. * sysdeps/unix/syscalls.list: Add swapoff. * sysdeps/unix/sysv/linux/Dist: Add sys/acct.h. * sysdeps/unix/sysv/linux/Makefile [$(subdir) == misc] (sysdep_routines): Add mount, umount, llseek, setfsgid, setfsuid, sysinfo, and uselib. (headers): Add sys/sysinfo.h. * sysdeps/unix/sysv/linux/gethostid.c: Prevent warning. * sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == misc] (sysdep_routines): Add ioperm, iopl, and vm86. (headers): Add sys/perm.h and sys/vm86.h. * sysdeps/unix/sysv/linux/i386/sys/perm.h: New file. Contains prototypes for iopl and ioperm. * sysdeps/unix/sysv/linux/i386/sys/vm86.h: New file. Contains prototype for vm86. * sysdeps/unix/sysv/linux/i386/syscalls.list: New file. Add vm86 system call. * sysdeps/unix/sysv/linux/sys/acct.h: New file. Contains prototypes for acct function. * sysdeps/unix/sysv/linux/sys/socket.h: Provide real header file with prototypes. * sysdeps/unix/sysv/linux/sys/sysinfo.h: New file. Contains prototype for sysinfo function. * sysdeps/unix/sysv/linux/syscalls.list: Add flock, ioperm, iopl, llseek, setfsgid, setfsuid, sysinfo, and uselib. * sysdeps/unix/sysv/linux/sysconf.c: Instead of duplicating posix/sysconf.c now only handle cases different to that implementation. Tue May 7 15:08:19 1996 Miles Bader <miles@gnu.ai.mit.edu> * stdio/linewrap.c (__line_wrap_output): Renamed from lwoutput (all references changed). Now exported. * stdio/linewrap.c (struct data): Type deleted (moved to linewrap.h). (wrap_stream, unwrap_stream, lwclose, lwfileno, lwoutput, line_wrap_stream, line_unwrap_stream): Use struct line_wrap_data instead of struct data. (lwoutput, line_wrap_stream, line_unwrap_stream): Rename various occurences of `wrap' and `wrapmargin' to `wmargin'. (line_wrapped, line_wrap_lmargin, line_wrap_set_lmargin, line_wrap_rmargin, line_wrap_set_rmargin, line_wrap_wmargin, line_wrap_set_wmargin, line_wrap_point): New functions. * stdio/linewrap.h: New file. * stdio/Makefile (headers): Add linewrap.h. Tue May 7 14:19:12 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * sysdeps/unix/sysv/linux/i386/Makefile: File removed. * stdio/stdio.h: Remove line_wrap_stream, line_unwap_stream decls. * sysdeps/unix/sysv/linux/schedbits.h: New file. Tue May 7 13:47:02 1996 Miles Bader <miles@gnu.ai.mit.edu> * stdio/linewrap.c (struct data): Make margin fields not-pointers. (lwoutput): Adjust uses acordingly. * sysdeps/mach/hurd/fdatasync.c: New file. * sysdeps/mach/hurd/fsync.c: Pass new flag to file_sync. * sysdeps/mach/hurd/xmknod.c: Pass new flag to dir_link. * sysdeps/mach/hurd/symlink.c: Likewise. * sysdeps/mach/hurd/link.c: Likewise. * sysdeps/mach/hurd/bind.c: Likewise. * hurd/hurdsig.c (write_corefile): Likewise. * hurd/hurdsig.c (write_corefile): Pass cttyid port to crash server. * sysdeps/mach/hurd/fpathconf.c: RPC takes int pointer, not long int. * sysdeps/mach/hurd/_exit.c (_hurd_exit): Pass sigcode arg to proc_mark_exit. * sysdeps/mach/hurd/dl-sysdep.c (_exit): Likewise. * sysdeps/mach/hurd/wait4.c: Pass sigcode arg to proc_wait. * sysdeps/mach/hurd/rename.c: Pass new flag to dir_rename. * hurd/hurdfault.c (_hurdsig_fault_catch_exception_raise): Use struct hurd_signal_detail. * hurd/catch-exc.c (_S_catch_exception_raise): Likewise. * hurd/hurd-raise.c (_hurd_raise_signal): Likewise. * sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Likewise. * sysdeps/mach/hurd/setitimer.c (restart_itimer): Likewise. * hurd/hurd/signal.h: Fix _hurd_exception2signal prototype. * hurd/hurdsig.c (write_corefile): Take const struct hurd_signal_detail * arg. Pass all details to crash_dump_task. (_hurd_internal_post_signal): Pass DETAIL to write_corefile. (_hurd_internal_post_signal: suspend): Pass code and error to proc_mark_stop. * hurd/hurdprio.c (_hurd_priority_which_map): Pass flags arg to proc_getprocinfo by reference.
1996-05-08 04:07:47 +02:00
kern_return_t
_S_msg_describe_ports (mach_port_t msgport, mach_port_t refport,
mach_port_t *ports, mach_msg_type_number_t nports,
char **desc, mach_msg_type_number_t *desclen)
{
char *p, *end;
if (__USEPORT (AUTH, msgport != port))
return EPERM;
end = *desc + *desclen;
p = *desc;
while (nports-- > 0)
{
char this[200];
describe_port (this, *ports++);
p = __stpncpy (p, this, end - p);
if (p == end && p[-1] != '\0')
return ENOMEM;
}
*desclen = p - *desc;
return 0;
}