Add the timing mechanism included wth the coreutils for measurement

eval/timeprogram.c

@@ -0,0 +1,59 @@
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+void __uClibc_main (int (*main)(int, char **, char **), int argc,
+		   char **argv, void (*app_init)(void), void (*app_fini)(void),
+		   void (*rtld_fini)(void),
+		   void *stack_end);
+
+const char* hex = "0123456789abcdef";
+int backup_stderr;
+
+void write_long(unsigned long n) {
+
+  for(int i = 7; i >= 0; --i) {
+
+    char c = ((char*)&n)[i];
+    char c1 = (c & 0xf0) >> 4;
+    char c2 = c & 0x0f;
+
+    c1 = hex[c1];
+    c2 = hex[c2];
+    write(backup_stderr, &c1, 1);
+    write(backup_stderr, &c2, 1);
+
+  }
+
+  write(backup_stderr, "\n", 1);
+
+}
+
+struct timespec ts;
+
+void write_times() {
+
+  struct timespec tf;
+  clock_gettime(CLOCK_MONOTONIC, &tf);
+
+  write_long(ts.tv_sec);
+  write_long(ts.tv_nsec);
+  write_long(tf.tv_sec);
+  write_long(tf.tv_nsec);
+
+}
+
+void __uClibc_main_timed (int (*main)(int, char **, char **), int argc,
+			   char **argv, void (*app_init)(void), void (*app_fini)(void),
+			   void (*rtld_fini)(void),
+			   void *stack_end) {
+
+  backup_stderr = dup(2);
+  atexit(write_times);
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+  __uClibc_main(main, argc, argv, app_init, app_fini, rtld_fini, stack_end);
+  close(backup_stderr);
+
+}
+
+