further semihosting support

libwrap/sys/write.c

@@ -5,6 +5,8 @@
 #include <unistd.h>
 #include <sys/types.h>
 
+#include "../../include/tgc-vp/devices/uart.h"
+#include "../../env/tgc-vp/platform.h"
 #include "platform.h"
 #include "stub.h"
 #include "weak_under_alias.h"
@@ -12,11 +14,19 @@
 
 ssize_t __wrap_write(int fd, const void* ptr, size_t len)
 {
-    const uint8_t * current = (const uint8_t *)ptr;
+    const uint8_t * current = (const uint8_t *)ptr; 
 #if defined(SEMIHOSTING)
-    sh_write(current, fd);
-    return len;
-#endif
+    if(isatty(fd)) {
+        for (size_t jj = 0; jj < len; jj++) {
+            sh_writec(current[jj]);
+        }
+        return len;
+    } else {
+        sh_write(current, fd);
+        return len;
+    }
+    //return len;
+#endif 
     if (isatty(fd)) {
         for (size_t jj = 0; jj < len; jj++) {
 #if defined(BOARD_ehrenberg)