Commit graph

12 commits

Author SHA1 Message Date
Justine Tunney
30afd6ddbb
Improve multithreading 2024-07-21 14:40:45 -07:00
Justine Tunney
d1d4388201
Delete ASAN
It hasn't been helpful enough to be justify the maintenance burden. What
actually does help is mprotect(), kprintf(), --ftrace and --strace which
can always be counted upon to work correctly. We aren't losing much with
this change. Support for ASAN on AARCH64 was never implemented. Applying
ASAN to the core libc runtimes was disabled many months ago. If there is
some way to have an ASAN runtime for user programs that is less invasive
we can potentially consider reintroducing support. But now is premature.
2024-06-22 05:45:49 -07:00
Jōshin
e16a7d8f3b
flip et / noet in modelines
`et` means `expandtab`.

```sh
rg 'vi: .* :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\)  :vi/vi: \1 xoet\2:vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2  :vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/'
```
2023-12-07 22:17:11 -05:00
Jōshin
394d998315
Fix vi modelines (#989)
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.)
2023-12-05 14:37:54 -08:00
Justine Tunney
97b7116953
Hunt down more bugs
After going through the MODE=dbg and MODE=zero build modes, a bunch of
little issues were identified, which have been addressed. Fixing those
issues created even more troubles for the project, because it improved
our ability to detect latent problems which are getting fixed so fast.
2023-07-03 18:43:29 -07:00
Justine Tunney
197aa0d465
Implement swapcontext() and makecontext()
This change introduces support for Linux-style uc_context manipulation
that's fast and works well on all supported OSes and architectures. It
also integrates with the Cosmpolitan runtime which can show backtraces
comprised of multiple stacks and fibers. See the test and example code
for further details. This will be used by Mold once it's been vendored
2023-07-02 09:01:44 -07:00
Justine Tunney
4a6fd3d910
Make more improvements to threading support
- fix rare thread exit race condition on openbsd
- pthread_getattr_np() now supplies detached status
- child threads may now pthread_join() the main thread
- introduce sigandset(), sigorset(), and sigisemptyset()
- introduce pthread_cleanup_push() and pthread_cleanup_pop()
2022-10-09 00:08:47 -07:00
Justine Tunney
c7a8cd21e9
Improve system call wrappers
This change improves copy_file_range(), sendfile(), splice(), openpty(),
closefrom(), close_range(), fadvise() and posix_fadvise() in addition to
writing tests that confirm things like errno and seeking behavior across
platforms. We now less aggressively polyfill behavior with some of these
functions when the platform support isn't available. Please see:

https://justine.lol/cosmopolitan/functions.html
2022-09-19 15:06:25 -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
2d17ab016c
Perform more low-level code cleanup 2022-09-09 04:07:08 -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