* windows-nat.c (dr): Redefine to use largest possible integer which holds a

pointer.
(cygwin_set_dr): Avoid coercion.
* windows-nat.c (windows_create_inferior): implement --tty handling on
non-cygwin.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 412161c..96a4295 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,14 @@
+2009-03-08  Christopher Faylor  <me+cygwin@cgf.cx>
+
+       * windows-nat.c (dr): Redefine to use largest possible integer which
+       holds a pointer.
+       (cygwin_set_dr): Avoid coercion.
+
+2009-03-08  Oswald Buddenhagen  <oswald.buddenhagen@trolltech.de>
+
+       * windows-nat.c (windows_create_inferior): implement --tty handling on
+       non-cygwin.
+
 2009-03-06  Paul Pluzhnikov  <ppluzhnikov@google.com>
 
        Rename solib_address to solib_name_from_address.

diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c
index 67f0c99..33ff1a0 100644 (file)
--- a/gdb/windows-nat.c
+++ b/gdb/windows-nat.c
@@ -95,7 +95,7 @@ enum
 #define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
        | CONTEXT_EXTENDED_REGISTERS
 
-static unsigned dr[8];
+static uintptr_t dr[8];
 static int debug_registers_changed;
 static int debug_registers_used;
 #define DR6_CLEAR_VALUE 0xffff0ff0
@@ -1815,8 +1815,12 @@ windows_create_inferior (struct target_ops *ops, char *exec_file,
   char *toexec;
   char shell[MAX_PATH + 1]; /* Path to shell */
   const char *sh;
+#ifdef __CYGWIN__
   int tty;
   int ostdin, ostdout, ostderr;
+#else
+  HANDLE tty;
+#endif
   const char *inferior_io_terminal = get_inferior_io_terminal ();
 
   if (!exec_file)
@@ -1886,6 +1890,28 @@ windows_create_inferior (struct target_ops *ops, char *exec_file,
          dup2 (tty, 2);
        }
     }
+#else
+  if (!inferior_io_terminal)
+    tty = INVALID_HANDLE_VALUE;
+  else
+    {
+      SECURITY_ATTRIBUTES sa;
+      sa.nLength = sizeof(sa);
+      sa.lpSecurityDescriptor = 0;
+      sa.bInheritHandle = TRUE;
+      tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE,
+                        0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
+      if (tty == INVALID_HANDLE_VALUE)
+       warning (_("Warning: Failed to open TTY %s, error %#x."),
+                inferior_io_terminal, (unsigned) GetLastError ());
+      else
+       {
+         si.hStdInput = tty;
+         si.hStdOutput = tty;
+         si.hStdError = tty;
+         si.dwFlags |= STARTF_USESTDHANDLES;
+       }
+    }
 #endif
 
   windows_init_thread_list ();
@@ -1911,6 +1937,9 @@ windows_create_inferior (struct target_ops *ops, char *exec_file,
       close (ostdout);
       close (ostderr);
     }
+#else
+  if (tty != INVALID_HANDLE_VALUE)
+    CloseHandle (tty);
 #endif
 
   if (!ret)
@@ -2245,7 +2274,7 @@ cygwin_set_dr (int i, CORE_ADDR addr)
   if (i < 0 || i > 3)
     internal_error (__FILE__, __LINE__,
                    _("Invalid register %d in cygwin_set_dr.\n"), i);
-  dr[i] = (unsigned) addr;
+  dr[i] = addr;
   debug_registers_changed = 1;
   debug_registers_used = 1;
 }