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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [config/] [i386/] [tm-i386v42mp.h] - Blame information for rev 1765

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1 106 markom
/* Macro definitions for GDB on an Intel i386 running SVR4.2MP
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   Copyright (C) 1991, 1994 Free Software Foundation, Inc.
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   Written by Fred Fish at Cygnus Support (fnf@cygnus.com)
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   This file is part of GDB.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#ifndef TM_I386V42MP_H
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#define TM_I386V42MP_H 1
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/* pick up more generic x86 sysv4 stuff */
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#include "i386/tm-i386v4.h"
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/* define to select for other sysv4.2mp weirdness (see procfs.c) */
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#define UNIXWARE
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/* The following macros extract process and lwp/thread ids from a
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   composite id.
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   For consistency with UnixWare core files, allocate bits 0-15 for
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   process ids and bits 16 and up for lwp ids.  Reserve bit 31 for
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   negative return values to indicate exceptions, and use bit 30 as a
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   flag to indicate a user-mode thread, leaving 14 bits for lwp
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   ids. */
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/* Number of bits in composite id allocated to process number. */
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#define PIDBITS 16
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/* Return the process id stored in composite PID. */
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#define PIDGET(PID)             (((PID) & ((1 << PIDBITS) - 1)))
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/* Return the thread or lwp id stored in composite PID. */
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#define TIDGET(PID)             (((PID) & 0x3fffffff) >> PIDBITS)
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#define LIDGET(PID)             TIDGET(PID)
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/* Construct a composite id from lwp LID and the process portion of
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   composite PID. */
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#define MERGEPID(PID, LID)      (PIDGET(PID) | ((LID) << PIDBITS))
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#define MKLID(PID, LID)         MERGEPID(PID, LID)
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/* Construct a composite id from thread TID and the process portion of
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   composite PID. */
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#define MKTID(PID, TID)         (MERGEPID(PID, TID) | 0x40000000)
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/* Return whether PID contains a user-space thread id. */
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#define ISTID(PID)              ((PID) & 0x40000000)
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#endif /* ifndef TM_I386V42MP_H */

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