old-cross-binutils/gdb/ultra3-xdep.c
Jim Kingdon 976bb0be03 * Makefile.in (init.c): Generate using the source, not munch. This
cleans up all kinds of hassles (which nm to use in munch, etc).  The
	new formatting conventions (mostly already followed) are that
	the name of the _initialize_* routines must start in column zero,
	and must not be inside #if.
	* munch: Removed.
	* Makefile.in: Remove references to munch.
	* serial.c, remote.c, infptrace.c, maint.c, convex-tdep.c,
	alpha-tdep.c, hp300ux-nat.c, hppab-nat.c, osfsolib.c, remote-es.c,
	procfs.c, remote-udi.c, ser-go32.c, ultra3-xdep.c, sh-tdep.c,
	i960-tdep.c, hppa-tdep.c, h8500-tdep.c, dpx2-nat.c, delta68-nat.c,
	z8k-tdep.c: Make sure the above conventions are followed.  Make
	sure they are all declared as returning void.  Clean up
	miscellaneous comments and such.
1993-10-22 05:55:58 +00:00

128 lines
2.6 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., 675 Mass Ave, Cambridge, MA 02139, 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 <sys/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("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
}