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/exit.c

@@ -16,13 +16,7 @@
 │ 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/dce.h"
-#include "libc/nt/console.h"
-#include "libc/nt/enum/consolemodeflags.h"
-#include "libc/nt/pedef.internal.h"
-#include "libc/nt/runtime.h"
 #include "libc/runtime/internal.h"
 #include "libc/runtime/runtime.h"
 
@@ -38,18 +32,8 @@
  * @noreturn
  */
 wontreturn void exit(int exitcode) {
-  const uintptr_t *p;
   if (weaken(__cxa_finalize)) {
     weaken(__cxa_finalize)(NULL);
   }
-  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);
+  quick_exit(exitcode);
 }