Commit graph

31 commits

Author SHA1 Message Date
Justine Tunney
b5cb71ab84
Use *NSYNC for POSIX threads locking APIs
Condition variables, barriers, and r/w locks now work very well.
2022-09-11 11:04:50 -07:00
Justine Tunney
155b378a39
Tidy up the threading implementation
The organization of the source files is now much more rational.
Old experiments that didn't work out are now deleted. Naming of
things like files is now more intuitive.
2022-09-10 02:56:25 -07:00
Justine Tunney
3265324e00
Don't relocate file descriptor memory
This change fixes #496 where ASAN spotted a race condition that could
happen in multithreaded programs, with more than OPEN_MAX descriptors
when using ZipOS or Windows NT, which require tracking open file info
and this change fixes that table so it never relocates, thus allowing
us to continue to enjoy the benefits of avoiding locks while reading.
2022-09-09 16:54:28 -07:00
Justine Tunney
c3208eb9d5
Add more POSIX threads APIs 2022-09-09 11:30:33 -07:00
Justine Tunney
e97f1a99cf
Fix pthread stacks with larger guard size 2022-09-09 06:41:22 -07:00
Justine Tunney
2d17ab016c
Perform more low-level code cleanup 2022-09-09 04:07:08 -07:00
Justine Tunney
6c323383e5
Make some fixups to POSIX threads 2022-09-07 21:13:50 -07:00
Justine Tunney
de511bc71a
Add phtread_setname_np() and pthread_getname_np() 2022-09-07 19:04:05 -07:00
Justine Tunney
4339d9f15e
Add pthread attributes and other libc functions 2022-09-07 05:28:32 -07:00
Justine Tunney
9be364d40a
Implement POSIX threads API 2022-09-05 08:27:15 -07:00
Justine Tunney
83d41e4588 Clean up some code 2022-08-20 12:32:51 -07:00
Justine Tunney
05b8f82371 Fold LIBC_BITS into LIBC_INTRIN 2022-08-11 12:13:18 -07:00
Justine Tunney
10fd8bdb70 Unbloat the build
This change resurrects ae5d06dc53
2022-08-11 00:15:29 -07:00
Justine Tunney
c1d99676c4 Revert "Unbloat build config"
This reverts commit ae5d06dc53.
2022-08-10 12:44:56 -07:00
Justine Tunney
ae5d06dc53 Unbloat build config
- 10.5% reduction of o//depend dependency graph
- 8.8% reduction in latency of make command
- Fix issue with temporary file cleanup

There's a new -w option in compile.com that turns off the recent
Landlock output path workaround for "good commands" which do not
unlink() the output file like GNU tooling does.

Our new GNU Make unveil sandboxing appears to have zero overhead
in the grand scheme of things. Full builds are pretty fast since
the only thing that's actually slowed us down is probably libcxx

    make -j16 MODE=rel
    RL: took 85,732,063µs wall time
    RL: ballooned to 323,612kb in size
    RL: needed 828,560,521µs cpu (11% kernel)
    RL: caused 39,080,670 page faults (99% memcpy)
    RL: 350,073 context switches (72% consensual)
    RL: performed 0 reads and 11,494,960 write i/o operations

pledge() and unveil() no longer consider ENOSYS to be an error.
These functions have also been added to Python's cosmo module.

This change also removes some WIN32 APIs and System Five magnums
which we're not using and it's doubtful anyone else would be too
2022-08-10 04:43:09 -07:00
Justine Tunney
3443039f34 Perform code cleanup on test pledges 2022-07-24 22:34:13 -07:00
Justine Tunney
69f4152f38 Always initialize thread local storage
We had previously not enabled TLS in MODE=tiny in order to keep the
smallest example programs (e.g. life.com) just 16kb in size. But it
was error prone doing that, so now we just always enable it because
this change uses hacks to ensure it won't increase life.com's size.

This change also fixes a bug on NetBSD, where signal handlers would
break thread local storage if SA_SIGINFO was being used. This looks
like it might be a bug in NetBSD, but it's got a simple workaround.
2022-07-19 00:21:46 -07:00
Justine Tunney
9877c04fac Fix MODE=tiny build 2022-07-11 06:11:39 -07:00
Justine Tunney
3f015b1e51 Make some minor fixups to bug reporting, etc. 2022-07-11 05:58:24 -07:00
Justine Tunney
331fdd1d29 Fix some broken builds and broken hearts 2022-07-10 09:08:38 -07:00
Justine Tunney
5fa77f1e8f Make _Thread_local more seamlessly working 2022-07-10 08:27:50 -07:00
Justine Tunney
5f4f6b0e69 Make _Thread_local work across platforms
We now rewrite the binary image at runtime on Windows and XNU to change
mov %fs:0,%reg instructions to use %gs instead. There's also simpler
threading API introduced by this change and it's called _spawn() and
_join(), which has replaced most clone() usage.
2022-07-10 04:01:17 -07:00
Justine Tunney
9545062175 Add pthread tls api 2022-06-22 07:08:17 -07:00
Justine Tunney
e96aceae41 Bump support up to FreeBSD 13 and NetBSD 9.2
These releases are really exciting since they contained the patches we
worked to get upstreamed. It means that their /bin/sh interpreters all
work fine with Actually Portable Executable now.
2022-06-11 10:36:17 -07:00
Justine Tunney
c260345e06 Make locks more reliable
This change switches most of the core locks to be re-entrant, in order
to reduce the chance of deadlocking code that does, clever things with
asynchronous signal handlers. This change implements it it in pthreads
so we're one step closer to having a standardized threading primitives
2022-06-11 02:07:20 -07:00
Justine Tunney
13ee75150c Improve redbean plus code size optimizations
This change turns symbol table compression back on using Puff, which
noticeably reduces the size of programs like redbean and Python. The
redbean web server receives some minor API additions for controlling
things like SSL in addition to filling gaps in the documentation.
2022-05-29 08:21:19 -07:00
Justine Tunney
425ff5dff0 Refactor some code
- Write tests for cthreads
- Fix bugs in pe2.com tool
- Fix ASAN issue with GetDosEnviron()
- Consolidate the cthread header files
- Some code size optimizations for MODE=
- Attempted to squash a tls linker warning
- Attempted to get futexes working on FreeBSD
2022-05-28 14:09:21 -07:00
Justine Tunney
d230a01222 Make build hermetic without shell scripts
- Fix some minor issues in ar.com
- Have execve() look for `ape` command
- Rewrite NT paths using /c/ rather /??/c:/
- Replace broken GCC symlinks with .sym files
- Rewrite $PATH environment variables on startup
- Make $(APE_NO_MODIFY_SELF) the default bootloader
- Add all build command dependencies to build/bootstrap
- Get the repository mostly building from source on non-Linux
2022-05-25 13:55:57 -07:00
Justine Tunney
fec396037a Get threads working on all platforms
We now have a high-quality clone() implementation for creating
lightweight threads on Linux/Windows/FreeBSD/NetBSD/OpenBSD.
2022-05-13 03:59:09 -07:00
Justine Tunney
e7611a8476 Make improvements
- Get threads working on NetBSD
- Get threads working on OpenBSD
- Fix Emacs config for Emacs v28
- Improve --strace logging of sigset_t
- Improve --strace logging of struct stat
- Improve memory safety of DescribeThing functions
- Refactor auto stack allocation into LIBC_RUNTIME
- Introduce shell.com example which works on Windows
- Refactor __strace_thing into DescribeThing functions
- Document the CHECK macros and improve them in NDEBUG mode
- Rewrite MAP_STACK so it uses FreeBSD behavior across platforms
- Deprecate and discourage the use of MAP_GROWSDOWN (it's weird)
2022-05-12 06:45:36 -07:00
Justine Tunney
ae638c0850 Fix bugs and make improvements
- Get clone() working on FreeBSD
- Increase some Python build quotas
- Add more atomic builtins to chibicc
- Fix ASAN poisoning of alloca() memory
- Make MODE= mandatory link path tinier
- Improve the examples folder a little bit
- Start working on some more resource limits
- Make the linenoise auto-complete UI as good as GNU readline
- Update compile.com, avoiding AVX codegen on non-AVX systems
- Make sure empty path to syscalls like opendir raises ENOENT
- Correctly polyfill ENOENT vs. ENOTDIR on the New Technology
- Port bestline's paredit features to //third_party/linenoise
- Remove workarounds for RHEL 5.0 bugs that were fixed in 5.1
2022-04-20 10:05:34 -07:00