Make some systemic improvements

- add vdso dump utility
- tests now log stack usage
- rename g_ftrace to __ftrace
- make internal spinlocks go faster
- add conformant c11 atomics library
- function tracing now logs stack usage
- make function call tracing thread safe
- add -X unsecure (no ssl) mode to redbean
- munmap() has more consistent behavior now
- pacify fsync() calls on python unit tests
- make --strace flag work better in redbean
- start minimizing and documenting compiler flags

libc/runtime/untrackmemoryintervals.c

@@ -16,17 +16,16 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/assert.h"
 #include "libc/dce.h"
 #include "libc/macros.internal.h"
 #include "libc/runtime/memtrack.internal.h"
 
 int UntrackMemoryIntervals(void *addr, size_t size) {
   int a, b;
+  assert(size > 0);
   a = ROUNDDOWN((intptr_t)addr, FRAMESIZE) >> 16;
   b = ROUNDDOWN((intptr_t)addr + size - 1, FRAMESIZE) >> 16;
-  if (SupportsWindows()) {
-    return ReleaseMemoryIntervals(&_mmi, a, b, ReleaseMemoryNt);
-  } else {
-    return ReleaseMemoryIntervals(&_mmi, a, b, 0);
-  }
+  return ReleaseMemoryIntervals(&_mmi, a, b,
+                                SupportsWindows() ? ReleaseMemoryNt : 0);
 }