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-rw-r--r--contrib/gdb/gdb/callback.c354
1 files changed, 0 insertions, 354 deletions
diff --git a/contrib/gdb/gdb/callback.c b/contrib/gdb/gdb/callback.c
deleted file mode 100644
index c5224c6..0000000
--- a/contrib/gdb/gdb/callback.c
+++ /dev/null
@@ -1,354 +0,0 @@
-/* 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-zero
- 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;
-{
- int result;
-
- result = fdbad (p, fd);
- if (result)
- return result;
- result = wrap (p, close (fdmap (p, fd)));
- return result;
-}
-
-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;
-{
- int result;
-
- result = fdbad (p, fd);
- if (result)
- return result;
- result = wrap (p, isatty (fdmap (fd)));
- return result;
-}
-
-int
-os_lseek (p, fd, off, way)
- host_callback *p;
- int fd;
- long off;
- int way;
-{
- int result;
-
- result = fdbad (p, fd);
- if (result)
- return result;
- result = lseek (fdmap (p, fd), off, way);
- return result;
-}
-
-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;
-{
- int result;
-
- result = fdbad (p, fd);
- if (result)
- return result;
- result = wrap (p, read (fdmap (p, fd), buf, len));
- return result;
-}
-
-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;
-{
- int result;
-
- result = fdbad (p, fd);
- if (result)
- return result;
- result = wrap (p, write (fdmap (p, fd), buf, len));
- return result;
-}
-
-/* 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 (p, 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;
-{
- time_t now;
-
- wrap (p, (int) time (&now));
- if (t != NULL)
- *t = (long) now;
- return (long) now;
-}
-
-
-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, const 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 */
-};
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