/* Native support for i386 running SVR4.
- Copyright 1986, 1987, 1989, 1992, 1996 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1989, 1992, 1996, 1997, 1998
+ Free Software Foundation, Inc.
Changes for 80386 by Pace Willisson (pace@prep.ai.mit.edu), July 1988.
-This file is part of GDB.
+ 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 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.
+ 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. */
+ 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. */
-#include "nm-sysv4.h"
+#ifndef NM_I386V42MP_H
+#define NM_I386V42MP_H
+#include "config/nm-sysv4.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 /* NM_I386V42MP_H */
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