Thu Sep 28 14:32:11 1995 steve chamberlain <sac@slash.cygnus.com>

	* callback.[ch]: New files.
	* remote-rdp.c: Support for the ARM RDP monitor.
	* Makefile: Update.
	* arm-tdep.c (arm_othernames): New.
	(_initialize_arm_tdep): install 'othernames' command.
	(arm_nullified_insn, shifted_reg_val, arm_get_next_pc): New.
	* configure.in: Check for termios.h, termio.h and sgtty.h.
	(i[345]86-*-win32*): New host.
	* configure: Regenerated.
	* inflow.c: Clean up inclusions.
	* main.c (main): Check for WINGDB, not WIN32.
	* printcmd.c (do_examine): Put QUIT test in loop.
	* remote-hms.c (e7000_load): Delete.
	(hms_ops): Point to generic_load instead.
	* remote-hms.c (hms_ops): Point to generic_load.
	* remote-sim.c (sim_callback_write_stdout): Becomes
	gdbsim_write_stdout.
	(gdbsim_load): Call generic_load.
	* remote-utils.c (gr_load_image): Delete.
	* ser-unix.c (terminal.h): Include instead of havig
	own #if tree.
	(hardwire_flush_input): Reset input buffer too.
	* source.c (openp): If WIN32 then open file in binary mode.
	* terminal.h: Configure IO mechanism using autoconf defines if available and
	not overriden.
	* utils.c (quit, pollquit, notice_quit): WIN32 check becomes WINGDB check.
	* config/arm/arm.mt (TDEPFILES): Add remote-rdp.o
	* config/arm/tm-arm.h (TARGET_BYTE_ORDER): becomes TARGET_BYTE_ORDER_SELECTABLE.
	(ADDR_BITS_REMOVE): New.
	(ORIGINAL_REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES): New.
	(INST_xx): New
	(FRAME_FIND_SAVED_REGS): Pass the right argument.
	(arm_get_next_pc): Declare.
	* mswin/prebuilt/*/bfdtarget.h (SELECT_ARCHITECTURES): Need leading &.

1 files changed, 319 insertions, 0 deletions

diff --git a/gdb/callback.c b/gdb/callback.c
new file mode 100644
index 0000000..60aa0a6
--- /dev/null
+++ b/gdb/callback.c
@@ -0,0 +1,319 @@
+/* Host callback routines for GDB.
+   Copyright 1995 Free Software Foundation, Inc.
+   Contributed by Cygnus Support.
+
+   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.  */
+
+
+/* This file provides a standard way for targets to talk to the host OS
+   level.
+
+   This interface will probably need a bit more banging to make it
+   smooth.  Currently the simulator uses this file to provide the
+   callbacks for itself when it's built standalone, which is rather
+   ugly. */
+
+#ifndef INSIDE_SIMULATOR
+#include "defs.h"
+#endif
+
+#include "ansidecl.h"
+#include "callback.h"
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <time.h>
+
+
+
+/* Set the callback copy of errno from what we see now. */
+static int 
+wrap (p, val)
+     host_callback *p;
+     int val;
+{
+  p->last_errno = errno;
+  return val;
+}
+
+/* Make sure the FD provided is ok.  If not, return non -1
+   and set errno. */
+
+static int 
+fdbad (p, fd)
+     host_callback *p;
+     int fd;
+{
+  if (fd < 0 || fd > MAX_CALLBACK_FDS || !p->fdopen[fd])
+    {
+      p->last_errno = EINVAL;
+      return -1;
+    }
+  return 0;
+}
+
+static int 
+fdmap (p, fd)
+     host_callback *p;
+     int fd;
+{
+  return p->fdmap[fd];
+}
+
+int 
+os_close (p, fd)
+     host_callback *p;
+     int fd;
+{
+  return fdbad (p, fd) || wrap (p, close (fdmap (p, fd)));
+}
+
+int 
+os_get_errno (p)
+     host_callback *p;
+{
+  /* !!! fixme, translate from host to taget errno value */
+  return p->last_errno;
+}
+
+
+int 
+os_isatty (p, fd)
+     host_callback *p;
+     int fd;
+{
+  return fdbad (p, fd) || wrap (p, isatty (fdmap (fd)));
+}
+
+int 
+os_lseek (p, fd, off, way)
+     host_callback *p;
+     int fd;
+     long off;
+     int way;
+{
+  return fdbad (p, fd) || lseek (fdmap (p, fd), off, way);
+}
+
+int 
+os_open (p, name, flags)
+     host_callback *p;
+     const char *name;
+     int flags;
+{
+  int i;
+  for (i = 0; i < MAX_CALLBACK_FDS; i++)
+    {
+      if (!p->fdopen[i])
+	{
+	  int f = open (name, flags);
+	  if (f < 0)
+	    {
+	      p->last_errno = errno;
+	      return f;
+	    }
+	  p->fdopen[i] = 1;
+	  p->fdmap[i] = f;
+	  return i;
+	}
+    }
+  p->last_errno = EMFILE;
+  return -1;
+}
+
+int 
+os_read (p, fd, buf, len)
+     host_callback *p;
+     int fd;
+     char *buf;
+     int len;
+{
+  return fdbad (p, fd) || wrap (p, read (fdmap (p, fd), buf, len));
+}
+
+int 
+os_read_stdin (p, buf, len)
+     host_callback *p;
+     char *buf;
+     int len;
+{
+  return wrap (p, read (0, buf, len));
+}
+
+int 
+os_write (p, fd, buf, len)
+     host_callback *p;
+     int fd;
+     const char *buf;
+     int len;
+{
+  return fdbad (p, fd) || wrap (p, write (fdmap (p, fd), buf, len));
+}
+
+/* ignore the grossness of INSIDE_SIMULATOR, it will go away one day. */
+int 
+os_write_stdout (p, buf, len)
+     host_callback *p;
+     const char *buf;
+     int len;
+{
+#ifdef INSIDE_SIMULATOR
+  return os_write (1, buf, len);
+#else
+  int i;
+  char b[2];
+  for (i = 0; i< len; i++) 
+    {
+      b[0] = buf[i];
+      b[1] = 0;
+      if (target_output_hook)
+	target_output_hook (b);
+      else
+	fputs_filtered (b, gdb_stdout);
+    }
+  return len;
+#endif
+}
+
+int 
+os_rename (p, f1, f2)
+     host_callback *p;
+     const char *f1;
+     const char *f2;
+{
+  return wrap (p, rename (f1, f2));
+}
+
+
+int
+os_system (p, s)
+     host_callback *p;
+     const char *s;
+{
+  return wrap (p, system (s));
+}
+
+long 
+os_time (p, t)
+     host_callback *p;
+     long *t;
+{
+  return wrap (p, time (t));
+}
+
+
+int 
+os_unlink (p, f1)
+     host_callback *p;
+     const char *f1;
+{
+  return wrap (p, unlink (f1));
+}
+
+
+int
+os_shutdown (p)
+host_callback *p;
+{
+  int i;
+  for (i = 0; i < MAX_CALLBACK_FDS; i++)
+    {
+      if (p->fdopen[i] && !p->alwaysopen[i]) {
+	close (p->fdmap[i]);
+	p->fdopen[i] = 0;
+      }
+    }
+  return 1;
+}
+
+int os_init(p)
+host_callback *p;
+{
+  int i;
+  os_shutdown (p);
+  for (i= 0; i < 3; i++)
+    {
+      p->fdmap[i] = i;
+      p->fdopen[i] = 1;
+      p->alwaysopen[i] = 1;
+    }
+  return 1;
+}
+
+
+/* !!fixme!!
+   This bit is ugly.  When the interface has settled down I'll 
+   move the whole file into sim/common and remove this bit. */
+
+/* VARARGS */
+void
+#ifdef ANSI_PROTOTYPES
+os_printf_filtered (host_callback *p, char *format, ...)
+#else
+os_printf_filtered (p, va_alist)
+     host_callback *p;
+     va_dcl
+#endif
+{
+  va_list args;
+#ifdef ANSI_PROTOTYPES
+  va_start (args, format);
+#else
+  char *format;
+
+  va_start (args);
+  format = va_arg (args, char *);
+#endif
+
+#ifdef INSIDE_SIMULATOR
+  vprintf (format, args);
+#else
+  vfprintf_filtered (stdout, format, args);
+#endif
+
+  va_end (args);
+}
+
+host_callback default_callback =
+{
+  os_close,
+  os_get_errno,
+  os_isatty,
+  os_lseek,
+  os_open,
+  os_read,
+  os_read_stdin,
+  os_rename,
+  os_system,
+  os_time,
+  os_unlink,
+  os_write,
+  os_write_stdout,
+
+  os_shutdown,
+  os_init,
+
+  os_printf_filtered,
+
+  0, 		/* last errno */
+};