Adding a few more 'syscalls' to our libc.

1 files changed, 14 insertions, 0 deletions

diff --git a/os/src/printf.c b/os/src/printf.c
new file mode 100644
index 0000000..599857c
--- /dev/null
+++ b/os/src/printf.c
@@ -0,0 +1,14 @@
+#include <reent.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <osdebug.h>
+
+int printf(const char * fmt, ...) {
+    int r;
+    va_list ap;
+    DBGOUT("printf(%p, ...)\r\n", fmt);
+    va_start(ap, fmt);
+    r = _vprintf_r(_impure_ptr, fmt, ap);
+    va_end(ap);
+    return r;
+}