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/assertfail.c

@@ -19,81 +19,23 @@
 #include "libc/assert.h"
 #include "libc/bits/bits.h"
 #include "libc/bits/weaken.h"
-#include "libc/dce.h"
+#include "libc/log/libfatal.internal.h"
 #include "libc/log/log.h"
-#include "libc/macros.internal.h"
-#include "libc/mem/alloca.h"
-#include "libc/nt/runtime.h"
-#include "libc/sysv/consts/nr.h"
-
-static noasan size_t __assert_strlen(const char *s) {
-  size_t i = 0;
-  while (s[i]) ++i;
-  return i;
-}
-
-static noasan char *__assert_stpcpy(char *d, const char *s) {
-  size_t i;
-  for (i = 0;; ++i) {
-    if (!(d[i] = s[i])) {
-      return d + i;
-    }
-  }
-}
-
-static privileged noinline noasan wontreturn void __assert_exit(int rc) {
-  if (!IsWindows()) {
-    asm volatile("syscall"
-                 : /* no outputs */
-                 : "a"(__NR_exit_group), "D"(rc)
-                 : "memory");
-    unreachable;
-  } else {
-    ExitProcess(rc);
-  }
-}
-
-static privileged noinline noasan ssize_t __assert_write(const void *data,
-                                                         size_t size) {
-  ssize_t rc;
-  uint32_t wrote;
-  if (!IsWindows()) {
-    asm volatile("syscall"
-                 : "=a"(rc)
-                 : "0"(__NR_write), "D"(2), "S"(data), "d"(size)
-                 : "rcx", "r11", "memory");
-    return rc;
-  } else {
-    if (WriteFile(GetStdHandle(kNtStdErrorHandle), data, size, &wrote, 0)) {
-      return wrote;
-    } else {
-      return -1;
-    }
-  }
-}
 
 /**
  * Handles failure of assert() macro.
  */
-relegated wontreturn noasan void __assert_fail(const char *expr,
-                                               const char *file, int line) {
-  static bool once;
-  char *msg, *p, linebuf[16];
-  unsigned i, exprlen, filelen;
-  if (cmpxchg(&once, false, true)) {
-    exprlen = expr ? __assert_strlen(expr) : 0;
-    filelen = file ? __assert_strlen(file) : 0;
-    p = msg = alloca(MIN(512, exprlen + filelen + 64));
-    p = __assert_stpcpy(p, file);
-    p = __assert_stpcpy(p, ":");
-    if (line < 1) line = 1;
-    for (i = 0; line; line /= 10) linebuf[i++] = '0' + line % 10;
-    while (i) *p++ = linebuf[--i];
-    p = __assert_stpcpy(p, ": assert(");
-    p = __assert_stpcpy(p, expr);
-    p = __assert_stpcpy(p, ")\r\n");
-    __assert_write(msg, p - msg);
-    if (weaken(__die)) weaken(__die)();
+relegated wontreturn void __assert_fail(const char *expr, const char *file,
+                                        int line) {
+  static bool noreentry;
+  __printf("%s:%d: assert(%s) failed\r\n", file, line, expr);
+  if (cmpxchg(&noreentry, false, true)) {
+    if (weaken(__die)) {
+      weaken(__die)();
+    } else {
+      __printf("can't backtrace b/c `__die` not linked\r\n");
+    }
+    exit(23);
   }
-  __assert_exit(23);
+  _exit(24);
 }