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/* Macro definitions for GDB on an Intel i386 running SVR4.2MP
Copyright 1991, 1994, 1997, 1999, 2000 Free Software Foundation, Inc.
Written by Fred Fish at Cygnus Support (fnf@cygnus.com)
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef TM_I386V42MP_H
#define TM_I386V42MP_H 1
/* pick up more generic x86 sysv4 stuff */
#include "i386/tm-i386v4.h"
/* define to select for other sysv4.2mp weirdness (see procfs.c) */
#define UNIXWARE
/* The following macros extract process and lwp/thread ids from a
composite id.
For consistency with UnixWare core files, allocate bits 0-15 for
process ids and bits 16 and up for lwp ids. Reserve bit 31 for
negative return values to indicate exceptions, and use bit 30 as a
flag to indicate a user-mode thread, leaving 14 bits for lwp
ids. */
/* Number of bits in composite id allocated to process number. */
#define PIDBITS 16
/* Return the process id stored in composite PID. */
#define PIDGET(PID) (((PID) & ((1 << PIDBITS) - 1)))
/* Return the thread or lwp id stored in composite PID. */
#define TIDGET(PID) (((PID) & 0x3fffffff) >> PIDBITS)
#define LIDGET(PID) TIDGET(PID)
/* Construct a composite id from lwp LID and the process portion of
composite PID. */
#define MERGEPID(PID, LID) (PIDGET(PID) | ((LID) << PIDBITS))
#define MKLID(PID, LID) MERGEPID(PID, LID)
/* Construct a composite id from thread TID and the process portion of
composite PID. */
#define MKTID(PID, TID) (MERGEPID(PID, TID) | 0x40000000)
/* Return whether PID contains a user-space thread id. */
#define ISTID(PID) ((PID) & 0x40000000)
#endif /* ifndef TM_I386V42MP_H */
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