diff options
Diffstat (limited to 'contrib/gdb/gdb/config/i386/tm-i386v42mp.h')
| -rw-r--r-- | contrib/gdb/gdb/config/i386/tm-i386v42mp.h | 95 |
1 files changed, 72 insertions, 23 deletions
diff --git a/contrib/gdb/gdb/config/i386/tm-i386v42mp.h b/contrib/gdb/gdb/config/i386/tm-i386v42mp.h index 81df85b..5671e42 100644 --- a/contrib/gdb/gdb/config/i386/tm-i386v42mp.h +++ b/contrib/gdb/gdb/config/i386/tm-i386v42mp.h @@ -1,22 +1,23 @@ /* Macro definitions for GDB on an Intel i386 running SVR4.2MP - Copyright (C) 1991, 1994 Free Software Foundation, Inc. + 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 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. */ #ifndef TM_I386V42MP_H #define TM_I386V42MP_H 1 @@ -25,20 +26,68 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "i386/tm-i386v4.h" -/* procfs on this architecture has multiple fds (ctl, as, map, status) - including a control fd */ +/* define to select for other sysv4.2mp weirdness (see procfs.c) */ -#ifndef HAVE_MULTIPLE_PROC_FDS -#define HAVE_MULTIPLE_PROC_FDS +#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 -/* procfs on this architecture communicates with read/write instead - of ioctl */ +/* 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. */ -#define PROCFS_USE_READ_WRITE +/* Return the process id stored in composite PID. */ +#define PIDGET(PID) (ptid_get_pid (PID)) -/* define to select for other sysv4.2mp weirdness */ +/* Return the thread or lwp id stored in composite PID. */ +#define TIDGET(PID) (ptid_get_lwp (PID)) +#define LIDGET(PID) TIDGET(PID) -#define UNIXWARE +#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 */ +#endif /* ifndef TM_I386V42MP_H */ |
