From abf6a9dc4ebf206e0e9d619a1e2a700a60d068ff Mon Sep 17 00:00:00 2001
From: Jim Wilson <wilson@tuliptree.org>
Date: Fri, 6 Oct 1995 19:06:13 +0000
Subject: [PATCH] Changes to make the simulator work again. 	* callback.c
 (fdbad): Fix typo in comment. 	(os_close, os_isatty, os_lseek, os_read,
 os_write): Use if statements 	rather than || to get correct return value. 
 (os_write_stdout): Pass missing first argument to os_write. 	*
 remote-sim.c: Include callback.h. 	(_initialize_remote_sim): Call
 sim_set_callbacks and then initialize 	the callbacks.

---
 gdb/ChangeLog    | 10 ++++++++++
 gdb/callback.c   | 44 +++++++++++++++++++++++++++++++++++++-------
 gdb/remote-sim.c |  4 ++++
 3 files changed, 51 insertions(+), 7 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ddfa05f..035e517 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,13 @@
+Fri Oct  6 11:56:49 1995  Jim Wilson  <wilson@chestnut.cygnus.com>
+
+	* callback.c (fdbad): Fix typo in comment.
+	(os_close, os_isatty, os_lseek, os_read, os_write): Use if statements
+	rather than || to get correct return value.
+	(os_write_stdout): Pass missing first argument to os_write.
+	* remote-sim.c: Include callback.h.
+	(_initialize_remote_sim): Call sim_set_callbacks and then initialize
+	the callbacks.
+
 Thu Oct  5 17:28:09 1995  Per Bothner  <bothner@kalessin.cygnus.com>
 
 	* values.c allocate_repeat_value):  Allocate an array type, and
diff --git a/gdb/callback.c b/gdb/callback.c
index b878f77..d59ecda 100644
--- a/gdb/callback.c
+++ b/gdb/callback.c
@@ -56,7 +56,7 @@ wrap (p, val)
   return val;
 }
 
-/* Make sure the FD provided is ok.  If not, return non -1
+/* Make sure the FD provided is ok.  If not, return non-zero
    and set errno. */
 
 static int 
@@ -85,7 +85,13 @@ os_close (p, fd)
      host_callback *p;
      int fd;
 {
-  return fdbad (p, fd) || wrap (p, close (fdmap (p, fd)));
+  int result;
+
+  result = fdbad (p, fd);
+  if (result)
+    return result;
+  result = wrap (p, close (fdmap (p, fd)));
+  return result;
 }
 
 int 
@@ -102,7 +108,13 @@ os_isatty (p, fd)
      host_callback *p;
      int fd;
 {
-  return fdbad (p, fd) || wrap (p, isatty (fdmap (fd)));
+  int result;
+
+  result = fdbad (p, fd);
+  if (result)
+    return result;
+  result = wrap (p, isatty (fdmap (fd)));
+  return result;
 }
 
 int 
@@ -112,7 +124,13 @@ os_lseek (p, fd, off, way)
      long off;
      int way;
 {
-  return fdbad (p, fd) || lseek (fdmap (p, fd), off, way);
+  int result;
+
+  result = fdbad (p, fd);
+  if (result)
+    return result;
+  result = lseek (fdmap (p, fd), off, way);
+  return result;
 }
 
 int 
@@ -148,7 +166,13 @@ os_read (p, fd, buf, len)
      char *buf;
      int len;
 {
-  return fdbad (p, fd) || wrap (p, read (fdmap (p, fd), buf, len));
+  int result;
+
+  result = fdbad (p, fd);
+  if (result)
+    return result;
+  result = wrap (p, read (fdmap (p, fd), buf, len));
+  return result;
 }
 
 int 
@@ -167,7 +191,13 @@ os_write (p, fd, buf, len)
      const char *buf;
      int len;
 {
-  return fdbad (p, fd) || wrap (p, write (fdmap (p, fd), buf, 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. */
@@ -178,7 +208,7 @@ os_write_stdout (p, buf, len)
      int len;
 {
 #ifdef INSIDE_SIMULATOR
-  return os_write (1, buf, len);
+  return os_write (p, 1, buf, len);
 #else
   int i;
   char b[2];
diff --git a/gdb/remote-sim.c b/gdb/remote-sim.c
index f2b39db..27b17ad 100644
--- a/gdb/remote-sim.c
+++ b/gdb/remote-sim.c
@@ -34,6 +34,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "gdbcore.h"
 #include "remote-sim.h"
 #include "remote-utils.h"
+#include "callback.h"
 
 /* Naming convention:
 
@@ -459,4 +460,7 @@ _initialize_remote_sim ()
 
   add_com ("sim <command>", class_obscure, simulator_command,
 	   "Send a command to the simulator."); 
+
+  sim_set_callbacks (&default_callback);
+  default_callback.init (&default_callback);
 }
-- 
2.7.4