[rtems commit] Use atexit() handler to close std file descriptors

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    f64c6b4c492bd4f4efe32ec69e9f4c69bf45be88
Changeset: http://git.rtems.org/rtems/commit/?id=f64c6b4c492bd4f4efe32ec69e9f4c69bf45be88

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Jan 25 21:23:53 2016 +0100

Use atexit() handler to close std file descriptors

---

 cpukit/libcsupport/include/rtems/libio.h  | 2 --
 cpukit/libcsupport/src/newlibc_exit.c     | 3 ---
 cpukit/libcsupport/src/open_dev_console.c | 3 +++
 cpukit/sapi/include/confdefs.h            | 7 -------
 4 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/cpukit/libcsupport/include/rtems/libio.h b/cpukit/libcsupport/include/rtems/libio.h
index 28b4627..824fa28 100644
--- a/cpukit/libcsupport/include/rtems/libio.h
+++ b/cpukit/libcsupport/include/rtems/libio.h
@@ -1487,8 +1487,6 @@ extern const rtems_libio_helper rtems_libio_init_helper;
 
 extern const rtems_libio_helper rtems_libio_post_driver_helper;
 
-extern const rtems_libio_helper rtems_libio_exit_helper;
-
 void rtems_libio_helper_null(void);
 
 void rtems_libio_post_driver(void);
diff --git a/cpukit/libcsupport/src/newlibc_exit.c b/cpukit/libcsupport/src/newlibc_exit.c
index c093bb2..53f97b0 100644
--- a/cpukit/libcsupport/src/newlibc_exit.c
+++ b/cpukit/libcsupport/src/newlibc_exit.c
@@ -14,8 +14,6 @@
 #include <rtems.h>
 
 #if defined(RTEMS_NEWLIB)
-#include <rtems/libio.h>
-
 #include <stdio.h>
 #include <unistd.h>
 
@@ -41,7 +39,6 @@ void _exit(int status)
     FINI_SYMBOL();
   #endif
 
-  (*rtems_libio_exit_helper)();
   rtems_shutdown_executive(status);
   /* does not return */
 }
diff --git a/cpukit/libcsupport/src/open_dev_console.c b/cpukit/libcsupport/src/open_dev_console.c
index 6617a78..2e111cc 100644
--- a/cpukit/libcsupport/src/open_dev_console.c
+++ b/cpukit/libcsupport/src/open_dev_console.c
@@ -16,6 +16,7 @@
 #include <rtems.h>
 #include <rtems/libio.h>
 #include <fcntl.h>
+#include <stdlib.h>
 
 /*
  *  This is a replaceable stub which opens the console, if present.
@@ -45,5 +46,7 @@ void rtems_libio_post_driver(void)
 
   if ((stderr_fd = open("/dev/console", O_WRONLY, 0)) == -1)
     rtems_fatal_error_occurred( 0x55544432 );  /* error STD2 */
+
+  atexit(rtems_libio_exit);
 }
 
diff --git a/cpukit/sapi/include/confdefs.h b/cpukit/sapi/include/confdefs.h
index 2c108ba..6761674 100644
--- a/cpukit/sapi/include/confdefs.h
+++ b/cpukit/sapi/include/confdefs.h
@@ -129,13 +129,6 @@ const rtems_libio_helper rtems_libio_post_driver_helper =
     rtems_libio_post_driver;
   #endif
 
-const rtems_libio_helper rtems_libio_exit_helper =
-  #ifdef CONFIGURE_APPLICATION_DISABLE_FILESYSTEM
-    rtems_libio_helper_null;
-  #else
-    rtems_libio_exit;
-  #endif
-
   #ifndef CONFIGURE_APPLICATION_DISABLE_FILESYSTEM
     RTEMS_SYSINIT_ITEM(
       rtems_filesystem_initialize,