Make improvements

- Fix build flakes
- Polyfill SIGWINCH on Windows
- Fix an execve issue on Windows
- Make strerror show more information
- Improve cmd.exe setup/teardown on Windows
- Support bracketed paste mode in Blinkenlights
- Show keyboard shortcuts in Blinkenlights status bar
- Fixed copy_file_range() and copyfile() w/ zip filesystem
- Size optimize GetDosArgv() to keep life.com 12kb in size
- Improve Blinkenlights ability to load weird ELF executables
- Fix program_executable_name and add GetInterpreterExecutableName
- Make Python in tiny mode fail better if docstrings are requested
- Update Python test exclusions in tiny* modes such as tinylinux
- Add bulletproof unbreakable kprintf() troubleshooting function
- Remove "oldskool" keyword from ape.S for virus scanners
- Fix issue that caused backtraces to not print sometimes
- Improve Blinkenlights serial uart character i/o
- Make clock_gettime() not clobber errno on xnu
- Improve sha256 cpuid check for old computers
- Integrate some bestline linenoise fixes
- Show runit process names better in htop
- Remove SIGPIPE from ShowCrashReports()
- Make realpath() not clobber errno
- Avoid attaching GDB on non-Linux
- Improve img.com example

libc/fmt/strerror_r.c

@@ -1,124 +0,0 @@
-/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/bits/safemacros.internal.h"
-#include "libc/dce.h"
-#include "libc/errno.h"
-#include "libc/fmt/fmt.h"
-#include "libc/fmt/itoa.h"
-#include "libc/log/libfatal.internal.h"
-#include "libc/macros.internal.h"
-#include "libc/nexgen32e/bsr.h"
-#include "libc/nt/enum/formatmessageflags.h"
-#include "libc/nt/enum/lang.h"
-#include "libc/nt/memory.h"
-#include "libc/nt/process.h"
-#include "libc/nt/runtime.h"
-#include "libc/str/str.h"
-#include "libc/str/tpenc.h"
-
-#if !IsTiny()
-STATIC_YOINK("__dos2errno");
-#endif
-
-struct Error {
-  int x;
-  int s;
-};
-
-extern const struct Error kErrorNames[];
-extern const struct Error kErrorNamesLong[];
-
-noasan static inline const char *GetErrorName(long x) {
-  int i;
-  if (x) {
-    for (i = 0; kErrorNames[i].x; ++i) {
-      if (x == *(const long *)((uintptr_t)kErrorNames + kErrorNames[i].x)) {
-        return (const char *)((uintptr_t)kErrorNames + kErrorNames[i].s);
-      }
-    }
-  }
-  return "EUNKNOWN";
-}
-
-noasan static inline const char *GetErrorNameLong(long x) {
-  int i;
-  if (x) {
-    for (i = 0; kErrorNamesLong[i].x; ++i) {
-      if (x ==
-          *(const long *)((uintptr_t)kErrorNamesLong + kErrorNamesLong[i].x)) {
-        return (const char *)((uintptr_t)kErrorNamesLong +
-                              kErrorNamesLong[i].s);
-      }
-    }
-  }
-  return "EUNKNOWN[No error information]";
-}
-
-/**
- * Converts errno value to string.
- * @return 0 on success, or error code
- */
-noasan int strerror_r(int err, char *buf, size_t size) {
-  uint64_t w;
-  int c, i, n;
-  char *p, *e;
-  const char *s;
-  char16_t *ws = 0;
-  p = buf;
-  e = p + size;
-  err &= 0xFFFF;
-  s = IsTiny() ? GetErrorName(err) : GetErrorNameLong(err);
-  while ((c = *s++)) {
-    if (p + 1 + 1 <= e) *p++ = c;
-  }
-  if (!IsTiny()) {
-    if (p + 1 + 5 + 1 + 1 <= e) {
-      *p++ = '[';
-      p = __intcpy(p, err);
-      *p++ = ']';
-    }
-    if (IsWindows()) {
-      err = GetLastError() & 0xffff;
-      if ((n = FormatMessage(
-               kNtFormatMessageAllocateBuffer | kNtFormatMessageFromSystem |
-                   kNtFormatMessageIgnoreInserts,
-               0, err, MAKELANGID(kNtLangNeutral, kNtSublangDefault),
-               (char16_t *)&ws, 0, 0))) {
-        while (n && ws[n - 1] <= L' ' || ws[n - 1] == L'.') --n;
-        if (p + 1 + 1 <= e) *p++ = '[';
-        for (i = 0; i < n; ++i) {
-          w = tpenc(ws[i] & 0xffff);
-          if (p + (bsrll(w) >> 3) + 1 + 1 <= e) {
-            do *p++ = w;
-            while ((w >>= 8));
-          }
-        }
-        if (p + 1 + 1 <= e) *p++ = ']';
-        LocalFree(ws);
-      }
-      if (p + 1 + 5 + 1 + 1 <= e) {
-        *p++ = '[';
-        p = __intcpy(p, err);
-        *p++ = ']';
-      }
-    }
-  }
-  if (p + 1 <= e) *p = 0;
-  return 0;
-}