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.

3 files changed, 14 insertions, 17 deletions

diff --git a/cpukit/libblock/include/rtems/blkdev.h b/cpukit/libblock/include/rtems/blkdev.h
index 81e2dfa0da..99f857379b 100644
--- a/cpukit/libblock/include/rtems/blkdev.h
+++ b/cpukit/libblock/include/rtems/blkdev.h
@@ -16,7 +16,7 @@
 
 #include <rtems.h>
 #include <rtems/diskdevs.h>
-#include <rtems/bspIo.h>
+#include <rtems/print.h>
 #include <sys/ioctl.h>
 #include <stdio.h>
 
@@ -348,15 +348,14 @@ void rtems_blkdev_print_stats(
   uint32_t media_block_size,
   uint32_t media_block_count,
   uint32_t block_size,
-  rtems_printk_plugin_t print,
-  void *print_arg
+  const rtems_printer* printer
 );
 
 /**
  * @brief Block device statistics command.
  */
 void rtems_blkstats(
-  FILE *output,
+  const rtems_printer *printer,
   const char *device,
   bool reset
 );
diff --git a/cpukit/libblock/src/blkdev-blkstats.c b/cpukit/libblock/src/blkdev-blkstats.c
index 1e773cf8c2..ca1e0e4b9c 100644
--- a/cpukit/libblock/src/blkdev-blkstats.c
+++ b/cpukit/libblock/src/blkdev-blkstats.c
@@ -31,7 +31,7 @@
 #include <errno.h>
 #include <string.h>
 
-void rtems_blkstats(FILE *output, const char *device, bool reset)
+void rtems_blkstats(const rtems_printer* printer, const char *device, bool reset)
 {
   int fd = open(device, O_RDONLY);
 
@@ -45,7 +45,7 @@ void rtems_blkstats(FILE *output, const char *device, bool reset)
         if (reset) {
           rv = rtems_disk_fd_reset_device_stats(fd);
           if (rv != 0) {
-            fprintf(output, "error: reset stats: %s\n", strerror(errno));
+            rtems_printf(printer, "error: reset stats: %s\n", strerror(errno));
           }
         } else {
           uint32_t media_block_size = 0;
@@ -64,25 +64,24 @@ void rtems_blkstats(FILE *output, const char *device, bool reset)
               media_block_size,
               media_block_count,
               block_size,
-              (rtems_printk_plugin_t) fprintf,
-              output
+              printer
             );
           } else {
-            fprintf(output, "error: get stats: %s\n", strerror(errno));
+            rtems_printf(printer, "error: get stats: %s\n", strerror(errno));
           }
         }
       } else {
-        fprintf(output, "error: not a block device\n");
+        rtems_printf(printer, "error: not a block device\n");
       }
     } else {
-      fprintf(output, "error: get file stats: %s\n", strerror(errno));
+      rtems_printf(printer, "error: get file stats: %s\n", strerror(errno));
     }
 
     rv = close(fd);
     if (rv != 0) {
-      fprintf(output, "error: close device: %s\n", strerror(errno));
+      rtems_printf(printer, "error: close device: %s\n", strerror(errno));
     }
   } else {
-    fprintf(output, "error: open device: %s\n", strerror(errno));
+    rtems_printf(printer, "error: open device: %s\n", strerror(errno));
   }
 }
diff --git a/cpukit/libblock/src/blkdev-print-stats.c b/cpukit/libblock/src/blkdev-print-stats.c
index edeee906fa..aba2173b42 100644
--- a/cpukit/libblock/src/blkdev-print-stats.c
+++ b/cpukit/libblock/src/blkdev-print-stats.c
@@ -32,12 +32,11 @@ void rtems_blkdev_print_stats(
   uint32_t media_block_size,
   uint32_t media_block_count,
   uint32_t block_size,
-  rtems_printk_plugin_t print,
-  void *print_arg
+  const rtems_printer* printer
 )
 {
-  (*print)(
-     print_arg,
+  rtems_printf(
+     printer,
      "-------------------------------------------------------------------------------\n"
      "                               DEVICE STATISTICS\n"
      "----------------------+--------------------------------------------------------\n"