mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
129 lines
2.7 KiB
C
129 lines
2.7 KiB
C
/* Host-dependent code for GDB, for NYU Ultra3 running Sym1 OS.
|
|
Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
|
|
Contributed by David Wood (wood@nyu.edu) at New York University.
|
|
|
|
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. */
|
|
|
|
#define DEBUG
|
|
#include "defs.h"
|
|
#include "frame.h"
|
|
#include "inferior.h"
|
|
#include "symtab.h"
|
|
#include "value.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <signal.h>
|
|
#include <sys/ioctl.h>
|
|
#include <fcntl.h>
|
|
|
|
#include "gdbcore.h"
|
|
|
|
#include <sys/file.h>
|
|
#include "gdb_stat.h"
|
|
|
|
/* Assorted operating system circumventions */
|
|
|
|
#ifdef SYM1
|
|
|
|
/* FIXME: Kludge this for now. It really should be system call. */
|
|
int
|
|
getpagesize()
|
|
{ return(8192); }
|
|
|
|
/* FIXME: Fake out the fcntl() call, which we don't have. */
|
|
fcntl(fd, cmd, arg)
|
|
int fd, cmd, arg;
|
|
{
|
|
|
|
switch (cmd) {
|
|
case F_GETFL: return(O_RDONLY); break;
|
|
default:
|
|
printf_unfiltered("Ultra3's fcntl() failing, cmd = %d.\n",cmd);
|
|
return(-1);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* 4.2 Signal support, requires linking with libjobs.
|
|
*/
|
|
static int _SigMask;
|
|
#define sigbit(s) (1L << ((s)-1))
|
|
|
|
init_SigMask()
|
|
{
|
|
/* Taken from the sym1 kernel in machdep.c:startup() */
|
|
_SigMask = sigbit (SIGTSTP) | sigbit (SIGTTOU) | sigbit (SIGTTIN) |
|
|
sigbit (SIGCHLD) | sigbit (SIGTINT);
|
|
}
|
|
|
|
sigmask(signo)
|
|
int signo;
|
|
{
|
|
return (1 << (signo-1));
|
|
}
|
|
|
|
sigsetmask(sigmask)
|
|
unsigned int sigmask;
|
|
{
|
|
int i, mask = 1;
|
|
int lastmask = _SigMask;
|
|
|
|
for (i=0 ; i<NSIG ; i++) {
|
|
if (sigmask & mask) {
|
|
if (!(_SigMask & mask)) {
|
|
sighold(i+1);
|
|
_SigMask |= mask;
|
|
}
|
|
} else if (_SigMask & mask) {
|
|
sigrelse(i+1);
|
|
_SigMask &= ~mask;
|
|
}
|
|
mask <<= 1;
|
|
}
|
|
return (lastmask);
|
|
}
|
|
|
|
sigblock(sigmask)
|
|
unsigned int sigmask;
|
|
{
|
|
int i, mask = 1;
|
|
int lastmask = _SigMask;
|
|
|
|
for (i=0 ; i<NSIG ; i++) {
|
|
if ((sigmask & mask) && !(_SigMask & mask)) {
|
|
sighold(i+1);
|
|
_SigMask |= mask;
|
|
}
|
|
mask <<= 1;
|
|
}
|
|
return (lastmask);
|
|
}
|
|
#endif /* SYM1 */
|
|
|
|
|
|
/* Initialization code for this module. */
|
|
|
|
void
|
|
_initialize_ultra3 ()
|
|
{
|
|
#ifdef SYM1
|
|
init_SigMask();
|
|
#endif
|
|
}
|