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[deliverable/binutils-gdb.git] / gdb / fork-child.c

diff --git a/gdb/fork-child.c b/gdb/fork-child.c
index ec6d8cf8bc3c5e0bc18b73dee57c2d71efc7c139..a1726bd543958b19b949bf10a4d319a0517594f4 100644 (file)
--- a/gdb/fork-child.c
+++ b/gdb/fork-child.c
@@ -1,7 +1,7 @@
 /* Fork a Unix child process, and set up to debug it, for GDB.
 
    Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
-   2001, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+   2001, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
 
    Contributed by Cygnus Support.
 
@@ -118,7 +118,7 @@ escape_bang_in_quoted_argument (const char *shell_file)
 /* This function is NOT reentrant.  Some of the variables have been
    made static to ensure that they survive the vfork call.  */
 
-void
+int
 fork_inferior (char *exec_file_arg, char *allargs, char **env,
               void (*traceme_fun) (void), void (*init_trace_fun) (int),
               void (*pre_trace_fun) (void), char *shell_file_arg)
@@ -408,11 +408,13 @@ fork_inferior (char *exec_file_arg, char *allargs, char **env,
   /* Now that we have a child process, make it our target, and
      initialize anything target-vector-specific that needs
      initializing.  */
-  (*init_trace_fun) (pid);
+  if (init_trace_fun)
+    (*init_trace_fun) (pid);
 
   /* We are now in the child process of interest, having exec'd the
      correct program, and are poised at the first instruction of the
      new program.  */
+  return pid;
 }
 
 /* Accept NTRAPS traps from the inferior.  */
@@ -541,6 +543,9 @@ unset_exec_wrapper_command (char *args, int from_tty)
   exec_wrapper = NULL;
 }
 
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+extern initialize_file_ftype _initialize_fork_child;
+
 void
 _initialize_fork_child (void)
 {