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/log/backtrace2.c

@@ -28,10 +28,12 @@
 #include "libc/fmt/fmt.h"
 #include "libc/fmt/itoa.h"
 #include "libc/log/backtrace.internal.h"
+#include "libc/log/libfatal.internal.h"
 #include "libc/log/log.h"
 #include "libc/nexgen32e/gc.internal.h"
 #include "libc/runtime/runtime.h"
 #include "libc/runtime/symbols.internal.h"
+#include "libc/stdio/stdio.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/fileno.h"
 #include "libc/sysv/consts/o.h"
@@ -40,7 +42,8 @@
 #define kBacktraceMaxFrames 128
 #define kBacktraceBufSize   ((kBacktraceMaxFrames - 1) * (18 + 1))
 
-static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
+static noasan int PrintBacktraceUsingAddr2line(int fd,
+                                               const struct StackFrame *bp) {
   ssize_t got;
   intptr_t addr;
   size_t i, j, gi;
@@ -52,9 +55,8 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
   char buf[kBacktraceBufSize], *argv[kBacktraceMaxFrames];
   if (IsOpenbsd()) return -1;
   if (IsWindows()) return -1;
-  if (!(debugbin = FindDebugBinary()) || !(addr2line = GetAddr2linePath())) {
-    return -1;
-  }
+  if (!(debugbin = FindDebugBinary())) return -1;
+  if (!(addr2line = GetAddr2linePath())) return -1;
   i = 0;
   j = 0;
   argv[i++] = "addr2line";
@@ -132,11 +134,11 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
                        strlen(" (discriminator ") - 1)) &&
           (p3 = memchr(p2, '\n', got - (p2 - p1)))) {
         if (p3 > p2 && p3[-1] == '\r') --p3;
-        write(fd, p1, p2 - p1);
+        __write(p1, p2 - p1);
         got -= p3 - p1;
         p1 += p3 - p1;
       } else {
-        write(fd, p1, got);
+        __write(p1, got);
         break;
       }
     }
@@ -154,7 +156,7 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
   }
 }
 
-static int PrintBacktrace(int fd, const struct StackFrame *bp) {
+static noasan int PrintBacktrace(int fd, const struct StackFrame *bp) {
   if (!IsTiny()) {
     if (PrintBacktraceUsingAddr2line(fd, bp) != -1) {
       return 0;
@@ -163,7 +165,7 @@ static int PrintBacktrace(int fd, const struct StackFrame *bp) {
   return PrintBacktraceUsingSymbols(fd, bp, GetSymbolTable());
 }
 
-void ShowBacktrace(int fd, const struct StackFrame *bp) {
+noasan void ShowBacktrace(int fd, const struct StackFrame *bp) {
   static bool noreentry;
   ++ftrace;
   if (!bp) bp = __builtin_frame_address(0);