Make numerous improvements

- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands

libc/runtime/directmap.c

@@ -17,6 +17,7 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/internal.h"
+#include "libc/calls/sysdebug.internal.h"
 #include "libc/nt/runtime.h"
 #include "libc/runtime/directmap.internal.h"
 
@@ -30,9 +31,13 @@
  */
 noasan struct DirectMap sys_mmap(void *addr, size_t size, int prot, int flags,
                                  int fd, int64_t off) {
+  struct DirectMap dm;
   if (!IsWindows() && !IsMetal()) {
-    return (struct DirectMap){__sys_mmap(addr, size, prot, flags, fd, off, off),
-                              kNtInvalidHandleValue};
+    dm.addr = __sys_mmap(addr, size, prot, flags, fd, off, off);
+    SYSDEBUG("sys_mmap(0x%x, 0x%x, %d, 0x%x, %d, %d) -> 0x%x", addr, size, prot,
+             flags, fd, off, dm.addr);
+    dm.maphandle = kNtInvalidHandleValue;
+    return dm;
   } else if (IsMetal()) {
     return sys_mmap_metal(addr, size, prot, flags, fd, off);
   } else {