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/runtime/quick_exit.c

@@ -1,49 +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 2021 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/pushpop.h"
-#include "libc/bits/weaken.h"
-#include "libc/nt/console.h"
-#include "libc/nt/enum/consolemodeflags.h"
-#include "libc/nt/runtime.h"
-#include "libc/runtime/internal.h"
-#include "libc/runtime/runtime.h"
-#include "libc/stdio/stdio.h"
-
-/**
- * Exits process faster.
- *
- * @param exitcode is masked with 255
- * @noreturn
- */
-wontreturn void quick_exit(int exitcode) {
-  const uintptr_t *p;
-  if (weaken(fflush)) {
-    weaken(fflush)(0);
-  }
-  for (p = __fini_array_end; p > __fini_array_start;) {
-    ((void (*)(void))(*--p))();
-  }
-  if (SupportsWindows() && __ntconsolemode) {
-    SetConsoleMode(GetStdHandle(pushpop(kNtStdInputHandle)), __ntconsolemode);
-    SetConsoleMode(GetStdHandle(pushpop(kNtStdOutputHandle)),
-                   kNtEnableProcessedOutput | kNtEnableWrapAtEolOutput |
-                       kNtEnableVirtualTerminalProcessing);
-  }
-  _Exit(exitcode);
-}