Reduce stack virtual memory consumption on Linux

examples/thread.c

@@ -0,0 +1,17 @@
+#include <pthread.h>
+#include <stdio.h>
+
+// how to spawn a thread
+
+void *my_thread(void *arg) {
+  printf("my_thread(%p) is running\n", arg);
+  return (void *)0x456L;
+}
+
+int main(int argc, char *argv[]) {
+  void *res;
+  pthread_t th;
+  pthread_create(&th, 0, my_thread, (void *)0x123L);
+  pthread_join(th, &res);
+  printf("my_thread() returned %p\n", res);
+}