/* 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-i386.h" /* define to select for other sysv4.2mp weirdness (see procfs.c) */ #define UNIXWARE #if 0 /* 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 /* New definitions of the ptid stuff. Due to the way the code is structured in uw-thread.c, I'm overloading the thread id and lwp id onto the lwp field. The tid field is used to indicate whether the lwp is a tid or not. FIXME: Check that core file support is not broken. (See original #if 0'd comments above.) FIXME: Restructure uw-thread.c so that the struct ptid fields can be used as intended. */ /* Return the process id stored in composite PID. */ #define PIDGET(PID) (ptid_get_pid (PID)) /* Return the thread or lwp id stored in composite PID. */ #define TIDGET(PID) (ptid_get_lwp (PID)) #define LIDGET(PID) TIDGET(PID) #define MERGEPID(PID, LID) (ptid_build ((PID), (LID), 0)) #define MKLID(PID, LID) (ptid_build ((PID), (LID), 0)) /* Construct a composite id from thread TID and the process portion of composite PID. */ #define MKTID(PID, TID) (ptid_build ((PID), (TID), 1)) /* Return whether PID contains a user-space thread id. */ #define ISTID(PID) (ptid_get_tid (PID)) #endif /* ifndef TM_I386V42MP_H */