1 files changed, 128 insertions, 0 deletions
diff --git a/gdb/ultra3-xdep.c b/gdb/ultra3-xdep.c
new file mode 100644
index 00000000000..57bab86e3bf
--- /dev/null
+++ b/gdb/ultra3-xdep.c
@@ -0,0 +1,128 @@
+/* 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
+}