Updated libc

apps/base/echo/echo.cpp

@@ -0,0 +1,21 @@
+static inline long syscall2(int sc, long arg1, long arg2)
+{
+    long ret;
+    __asm__ __volatile__("syscall"
+                         : "=a"(ret)
+                         : "a"(sc), "D"(arg1), "S"(arg2)
+                         : "rcx", "r11", "memory");
+    return ret;
+}
+
+int main(int argc, char *argv[])
+{
+    // TODO: Change this to use stdout
+    for (int i = 1; i < argc; i++)
+    {
+        for (int j = 0; argv[i][j]; j++)
+            syscall2(1, argv[i][j], 0);
+        syscall2(1, ' ', 0);
+    }
+    return 0;
+}