cpukit, testsuite: Add rtems_printf and rtems_printer support.

This change adds rtems_printf and related functions and wraps the
RTEMS print plugin support into a user API. All references to the
plugin are removed and replaced with the rtems_printer interface.

Printk and related functions are made to return a valid number of
characters formatted and output.

The function attribute to check printf functions has been added
to rtems_printf and printk. No changes to remove warrnings are part
of this patch set.

The testsuite has been moved over to the rtems_printer. The testsuite
has a mix of rtems_printer access and direct print control via the
tmacros.h header file. The support for begink/endk has been removed
as it served no purpose and only confused the code base. The testsuite
has not been refactored to use rtems_printf. This is future work.

1 files changed, 11 insertions, 11 deletions

diff --git a/cpukit/libcsupport/src/printk_plugin.c b/cpukit/libcsupport/src/printk_plugin.c
index b600378d0a..3ecacb8a28 100644
--- a/cpukit/libcsupport/src/printk_plugin.c
+++ b/cpukit/libcsupport/src/printk_plugin.c
@@ -19,23 +19,23 @@
 #endif
 
 #include <stdarg.h>
-#include <rtems/bspIo.h>
+#include <rtems/print.h>
+
+void rtems_print_printer_printk(
+  rtems_printer *printer
+)
+{
+  printer->context = NULL;
+  printer->printer = printk_plugin;
+}
 
 int printk_plugin(
   void *ignored,
   const char *format,
-  ...
+  va_list ap
 )
 {
-  va_list arg_pointer;
-
   (void) ignored;
-
-  va_start (arg_pointer, format);
-
-  vprintk( format, arg_pointer );
-
-  va_end(arg_pointer); /* clean up when done */
-
+  vprintk( format, ap );
   return 0;
 }