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c906108c SS |
1 | /* Macro definitions for GDB on an Intel i386 running SVR4.2MP |
2 | Copyright (C) 1991, 1994 Free Software Foundation, Inc. | |
3 | Written by Fred Fish at Cygnus Support (fnf@cygnus.com) | |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #ifndef TM_I386V42MP_H | |
23 | #define TM_I386V42MP_H 1 | |
24 | ||
25 | /* pick up more generic x86 sysv4 stuff */ | |
26 | ||
27 | #include "i386/tm-i386v4.h" | |
28 | ||
0d06e24b | 29 | /* define to select for other sysv4.2mp weirdness (see procfs.c) */ |
c906108c | 30 | |
0d06e24b | 31 | #define UNIXWARE |
c906108c | 32 | |
0d06e24b JM |
33 | /* The following macros extract process and lwp/thread ids from a |
34 | composite id. | |
c906108c | 35 | |
0d06e24b JM |
36 | For consistency with UnixWare core files, allocate bits 0-15 for |
37 | process ids and bits 16 and up for lwp ids. Reserve bit 31 for | |
38 | negative return values to indicate exceptions, and use bit 30 as a | |
39 | flag to indicate a user-mode thread, leaving 14 bits for lwp | |
40 | ids. */ | |
c906108c | 41 | |
0d06e24b JM |
42 | /* Number of bits in composite id allocated to process number. */ |
43 | #define PIDBITS 16 | |
c906108c | 44 | |
0d06e24b JM |
45 | /* Return the process id stored in composite PID. */ |
46 | #define PIDGET(PID) (((PID) & ((1 << PIDBITS) - 1))) | |
47 | ||
48 | /* Return the thread or lwp id stored in composite PID. */ | |
49 | #define TIDGET(PID) (((PID) & 0x3fffffff) >> PIDBITS) | |
50 | #define LIDGET(PID) TIDGET(PID) | |
51 | ||
52 | /* Construct a composite id from lwp LID and the process portion of | |
53 | composite PID. */ | |
54 | #define MERGEPID(PID, LID) (PIDGET(PID) | ((LID) << PIDBITS)) | |
55 | #define MKLID(PID, LID) MERGEPID(PID, LID) | |
56 | ||
57 | /* Construct a composite id from thread TID and the process portion of | |
58 | composite PID. */ | |
59 | #define MKTID(PID, TID) (MERGEPID(PID, TID) | 0x40000000) | |
60 | ||
61 | /* Return whether PID contains a user-space thread id. */ | |
62 | #define ISTID(PID) ((PID) & 0x40000000) | |
c906108c | 63 | |
c5aa993b | 64 | #endif /* ifndef TM_I386V42MP_H */ |