nm-i386v42mp.h revision 130803
1295041Sbr/* Native support for i386 running SVR4. 2295972Sbr Copyright 1986, 1987, 1989, 1992, 1996, 1997, 1998 3295041Sbr Free Software Foundation, Inc. 4295041Sbr Changes for 80386 by Pace Willisson (pace@prep.ai.mit.edu), July 1988. 5295041Sbr 6295041Sbr This file is part of GDB. 7295041Sbr 8295041Sbr This program is free software; you can redistribute it and/or modify 9295041Sbr it under the terms of the GNU General Public License as published by 10295041Sbr the Free Software Foundation; either version 2 of the License, or 11295041Sbr (at your option) any later version. 12295041Sbr 13295041Sbr This program is distributed in the hope that it will be useful, 14295041Sbr but WITHOUT ANY WARRANTY; without even the implied warranty of 15295041Sbr MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16295041Sbr GNU General Public License for more details. 17295041Sbr 18295041Sbr You should have received a copy of the GNU General Public License 19295041Sbr along with this program; if not, write to the Free Software 20295041Sbr Foundation, Inc., 59 Temple Place - Suite 330, 21295041Sbr Boston, MA 02111-1307, USA. */ 22295041Sbr 23295041Sbr#ifndef NM_I386V42MP_H 24295041Sbr#define NM_I386V42MP_H 25295041Sbr 26295041Sbr#include "config/nm-sysv4.h" 27295041Sbr 28295041Sbr/* define to select for other sysv4.2mp weirdness (see procfs.c) */ 29295041Sbr 30295041Sbr#define UNIXWARE 31295041Sbr 32295041Sbr#if 0 33295041Sbr/* The following macros extract process and lwp/thread ids from a 34295041Sbr composite id. 35295041Sbr 36295041Sbr For consistency with UnixWare core files, allocate bits 0-15 for 37295041Sbr process ids and bits 16 and up for lwp ids. Reserve bit 31 for 38295041Sbr negative return values to indicate exceptions, and use bit 30 as a 39295041Sbr flag to indicate a user-mode thread, leaving 14 bits for lwp 40295041Sbr ids. */ 41295041Sbr 42295041Sbr/* Number of bits in composite id allocated to process number. */ 43295041Sbr#define PIDBITS 16 44295041Sbr 45295041Sbr/* Return the process id stored in composite PID. */ 46295041Sbr#define PIDGET(PID) (((PID) & ((1 << PIDBITS) - 1))) 47295041Sbr 48295041Sbr/* Return the thread or lwp id stored in composite PID. */ 49295041Sbr#define TIDGET(PID) (((PID) & 0x3fffffff) >> PIDBITS) 50295041Sbr#define LIDGET(PID) TIDGET(PID) 51295041Sbr 52295041Sbr/* Construct a composite id from lwp LID and the process portion of 53295041Sbr composite PID. */ 54295041Sbr#define MERGEPID(PID, LID) (PIDGET(PID) | ((LID) << PIDBITS)) 55295041Sbr#define MKLID(PID, LID) MERGEPID(PID, LID) 56295041Sbr 57295041Sbr/* Construct a composite id from thread TID and the process portion of 58295041Sbr composite PID. */ 59295041Sbr#define MKTID(PID, TID) (MERGEPID(PID, TID) | 0x40000000) 60295041Sbr 61295041Sbr/* Return whether PID contains a user-space thread id. */ 62295041Sbr#define ISTID(PID) ((PID) & 0x40000000) 63295041Sbr#endif 64295041Sbr 65295041Sbr/* New definitions of the ptid stuff. Due to the way the 66295041Sbr code is structured in uw-thread.c, I'm overloading the thread id 67295041Sbr and lwp id onto the lwp field. The tid field is used to indicate 68295041Sbr whether the lwp is a tid or not. 69295041Sbr 70295041Sbr FIXME: Check that core file support is not broken. (See original 71295041Sbr #if 0'd comments above.) 72295041Sbr FIXME: Restructure uw-thread.c so that the struct ptid fields 73295041Sbr can be used as intended. */ 74295041Sbr 75295041Sbr/* Return the process id stored in composite PID. */ 76295041Sbr#define PIDGET(PID) (ptid_get_pid (PID)) 77295041Sbr 78295041Sbr/* Return the thread or lwp id stored in composite PID. */ 79295041Sbr#define TIDGET(PID) (ptid_get_lwp (PID)) 80295041Sbr#define LIDGET(PID) TIDGET(PID) 81295041Sbr 82295041Sbr#define MERGEPID(PID, LID) (ptid_build ((PID), (LID), 0)) 83295041Sbr#define MKLID(PID, LID) (ptid_build ((PID), (LID), 0)) 84295041Sbr 85295041Sbr/* Construct a composite id from thread TID and the process portion of 86295041Sbr composite PID. */ 87295041Sbr#define MKTID(PID, TID) (ptid_build ((PID), (TID), 1)) 88295041Sbr 89295041Sbr/* Return whether PID contains a user-space thread id. */ 90295041Sbr#define ISTID(PID) (ptid_get_tid (PID)) 91295041Sbr 92295972Sbr#endif /* NM_I386V42MP_H */ 93295041Sbr