- Open flags (e.g. O_CREAT) are now constants
- Error numbers (e.g. EINVAL) are now constants
- Signal numbers (e.g. SIGINT) are now constants
- fcntl() file locks now work properly on Windows
- Significantly improve Windows path handling code
- Implement true vfork() on Windows and make fork() faster
- Implement scanf %[charset] support and improve conformance
- Introduce $COSMOSDRIVE so you can use Windows 11 dev drives
- Fix stdio seek/tell bug and make stdio locks faster and safer
- Change TLS ABI to use tlscc wrapper that inserts function calls
- Make malloc() faster on all platforms using new cosmo_shard() api
- Make malloc() fast like tcmalloc on Linux using restartable sequences
- Improve fsync() and fdatasync() polyfills so they abstract robustness
- Fix CLOCK_BOOTTIME and CLOCK_MONOTONIC on XNU so it reflects uptime
- Fix bugs in Windows overlapped code that could possibly cause crash
- Fix bugs in Windows signal code that could possibly cause crash
- Make symlinks with multiple components work right on Windows
- Add FreeBSD ELF note to remove SIGBUS issue and other quirks
- Support symlinks on Windows under non-administrator accounts
- Make kisdangerous() scalable by adding radix trie to mmap()
- Make large realloc() operations zero-cost on all platforms
- Fix bugs in readdir() on Windows where d_reclen wasn't set
- Make all system call wrappers memory safe (raises EFAULT)
- Fix bugs in poll() and select() on Windows with 64+ fds
- Fix bug in madvise() on Windows that could cause crash
- Support WUNTRACED, SIGSTOP, and SIGCONT on Windows
- Increase x86 image base from 0x400000 to 0x4200000
- Introduce -msysv and -mtinylinux flags to cosmocc
- Fix issues with siglongjmp() on XNU and NetBSD
- Make pthread_barrier_wait() work correctly
- Make clock_gettime() faster on FreeBSD ARM
- Support file mode bits better on Windows
- Improve performance of string libraries
- Raise EILSEQ when creating evil paths
- Fix std::terminate to not use malloc
- Modernize more c11 and c23 features
- Make pthread_once() exception safe
- Support RLIMIT_CPU on Windows
- Introduce HACL* cryptography
- Introduce cosmopolitan make
- Introduce fasterzip program
- Introduce open_memstream()
- Introduce dedupe program
- Introduce arc4random()
- Introduce f2fs support
Cosmopolitan now supports 104 time zones. They're embedded inside any
binary that links the localtime() function. Doing so adds about 100kb
to the binary size. This change also gets time zones working properly
on Windows for the first time. It's not needed to have /etc/localtime
exist on Windows, since we can get this information from WIN32. We're
also now updated to the latest version of Paul Eggert's TZ library.
At least in neovim, `│vi:` is not recognized as a modeline because it
has no preceding whitespace. After fixing this, opening a file yields
an error because `net` is not an option. (`noet`, however, is.)
The APE_NO_MODIFY_SELF loader payload has been moved out of the examples
folder and improved so that it works on BSD systems, and permits general
elf program headers. This brings its quality up enough that it should be
acceptable to use by default for many programs, e.g. Python, Lua, SQLite
and Python. It's the responsibility of the user to define an appropriate
TMPDIR if /tmp is considered an adversarial environment. Mac OS shall be
supported by APE_NO_MODIFY_SELF soon.
Fixes and improvements have been made to program_executable_name as it's
now the one true way to get the absolute path of the executing image.
This change fixes a memory leak in linenoise history loading, introduced
by performance optimizations in 51904e2687
This change fixes a longstanding regression with Mach system calls, that
23ae9dfceb back in February which impacted
our sched_yield() implementation, which is why no one noticed until now.
The Blinkenlights PC emulator has been improved. We now fix rendering on
XNU and BSD by not making the assumption that the kernel terminal driver
understands UTF8 since that seems to break its internal modeling of \r\n
which is now being addressed by using \e[𝑦H instead. The paneling is now
more compact in real mode so you won't need to make your font as tiny if
you're only emulating an 8086 program. The CLMUL ISA is now emulated too
This change also makes improvement to time. CLOCK_MONOTONIC now does the
right thing on Windows NT. The nanosecond time module functions added in
Python 3.7 have been backported.
This change doubles the performance of Argon2 password stretching simply
by not using its copy_block and xor_block helper functions, as they were
trivial to inline thus resulting in us needing to iterate over each 1024
byte block four fewer times.
This change makes code size improvements. _PyUnicode_ToNumeric() was 64k
in size and now it's 10k. The CJK codec lookup tables now use lazy delta
zigzag deflate (δzd) encoding which reduces their size from 600k to 200k
plus the code bloat caused by macro abuse in _decimal.c is now addressed
so our fully-loaded statically-linked hermetically-sealed Python virtual
interpreter container is now 9.4 megs in the default build mode and 5.5m
in MODE=tiny which leaves plenty of room for chibicc.
The pydoc web server now accommodates the use case of people who work by
SSH'ing into a different machine w/ python.com -m pydoc -p8080 -h0.0.0.0
Finally Python Capsulae delenda est and won't be supported in the future
Status lines for Emacs and Vim have been added to Python sources so
they'll be easier to edit using Python's preferred coding style.
Some DNS helper functions have been broken up into multiple files. It's
nice to have one function per file whenever possible, since that way we
don't need -ffunction-sections. Another reason it's good to have small
source files, is because the build will be enforcing resource limits on
compilation and testing soon.
This change gets the Python codebase into a state where it conforms to
the conventions of this codebase. It's now possible to include headers
from Python, without worrying about ordering. Python has traditionally
solved that problem by "diamonding" everything in Python.h, but that's
problematic since it means any change to any Python header invalidates
all the build artifacts. Lastly it makes tooling not work. Since it is
hard to explain to Emacs when I press C-c C-h to add an import line it
shouldn't add the header that actually defines the symbol, and instead
do follow the nonstandard Python convention.
Progress has been made on letting Python load source code from the zip
executable structure via the standard C library APIs. System calss now
recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME
since Python uses colon as its delimiter.
Some progress has been made on embedding the notice license terms into
the Python object code. This is easier said than done since Python has
an extremely complicated ownership story.
- Some termios APIs have been added
- Implement rewinddir() dirstream API
- GetCpuCount() API added to Cosmopolitan Libc
- More bugs in Cosmopolitan Libc have been fixed
- zipobj.com now has flags for mangling the path
- Fixed bug a priori with sendfile() on certain BSDs
- Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms
- FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes
- APE now supports a hybrid solution to no-self-modify for builds
- Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO
Building o//third_party/python now takes 5 seconds on my PC
This change works towards modifying Python to use runtime dispatching
when appropriate. For example, when loading the magnums in the socket
module, it's a good idea to check if the magnum is zero, because that
means the local system platform doesn't support it.
These are the commits from
https://github.com/ahgamut/cpython/tree/cosmo_py36 squashed for
simplicity.
Also included is the pyconfig.h used for compilation. The pyconfig.h has
to be changed manually in case Cosmopolitan gets new features.
Justine Tunney