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

tool/build/lib/loader.c

@@ -43,7 +43,7 @@ static void LoadElfLoadSegment(struct Machine *m, void *code, size_t codesize,
   int64_t align, bsssize;
   int64_t felf, fstart, fend, vstart, vbss, vend;
   align = MAX(phdr->p_align, PAGESIZE);
-  CHECK_EQ(1, popcnt(align));
+  if (popcnt(align) != 1) align = 8;
   CHECK_EQ(0, (phdr->p_vaddr - phdr->p_offset) % align);
   felf = (int64_t)(intptr_t)code;
   vstart = ROUNDDOWN(phdr->p_vaddr, align);