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

tool/build/pstrace.c

@@ -80,7 +80,7 @@
       L.c += L.c >> 1;                        \
       L.p = realloc(L.p, L.c * sizeof(*L.p)); \
     }                                         \
-    memset(L.p + L.n - 1, 0, sizeof(*L.p));   \
+    bzero(L.p + L.n - 1, sizeof(*L.p));       \
   } while (0)
 
 struct Trace {
@@ -705,7 +705,7 @@ static void Parse(struct Trace *t, const char *line, long lineno) {
     }
     CHECK_LT((arg = t->events.p[event].arity++), 6);
     if (isalpha(*p) && !startswith(p, "NULL")) {
-      memset(&b, 0, sizeof(b));
+      bzero(&b, sizeof(b));
       for (; isalpha(*p) || *p == '_'; ++p) {
         AppendSlice(&b, *p);
       }
@@ -732,7 +732,7 @@ static void Parse(struct Trace *t, const char *line, long lineno) {
       CHECK_NOTNULL((p = strchr(p, '}')), DEBUG);
       ++p;
     } else if (*p == '"') {
-      memset(&b, 0, sizeof(b));
+      bzero(&b, sizeof(b));
       for (j = 0; (c = p[++j]);) {
         if (c == '"') {
           p += j + 1;
@@ -762,7 +762,7 @@ static void Parse(struct Trace *t, const char *line, long lineno) {
           if (*p == ',') ++p;
           if (*p == ' ') ++p;
           CHECK_EQ('"', *p, DEBUG);
-          memset(&b, 0, sizeof(b));
+          bzero(&b, sizeof(b));
           for (k = 0; (c = p[++k]);) {
             if (c == '"') {
               p += k + 1;