Commit graph

13 commits

Author SHA1 Message Date
Justine Tunney
c8aa33e0e2
Improve wait statuses
This change has the insight that dwExitCode isn't an exit code but
rather should be used to pass the wait status. This lets us report
killing as a termination status, similar to UNIX. This change also
fixes the fact that exit(259) on Windows will break the parent due
way WIN32 is designed. We now work around that.

It turns out that NetBSD and OpenBSD, will let you have exit codes
beyond 255. This change will let you use them when it's possible.
2023-07-30 14:51:37 -07:00
Justine Tunney
58352df0a4
Make forking off threads reliable on Windows
This change makes posix_spawn_test no longer flaky on Windows, by (1)
fixing a race condition in wait(), and (2) removing a misguided vfork
implementation which was letting Windows bypass pthread_atfork().
2023-07-30 09:32:41 -07:00
Justine Tunney
426d441994
Fix quick regression due to header line 2023-03-28 23:35:09 -07:00
Justine Tunney
4f39139fe0
Support kill(pid, 0) behavior on Windows
It's specified by POSIX as a way to check if a pid can be signalled.
2023-03-28 22:28:09 -07:00
Justine Tunney
83d41e4588 Clean up some code 2022-08-20 12:32:51 -07:00
Justine Tunney
ec2cb88058 Make fixes and improvements
- Document more compiler flags
- Expose new __print_maps() api
- Better overflow checking in mmap()
- Improve the shell example somewhat
- Fix minor runtime bugs regarding stacks
- Make kill() on fork()+execve()'d children work
- Support CLONE_CHILD_CLEARTID for proper joining
- Fix recent possible deadlock regression with --ftrace
2022-05-19 16:57:49 -07:00
Justine Tunney
046c7ebd4a Improve locks and signals
- Introduce fast spinlock API
- Double rand64() perf w/ spinlock
- Improve raise() on New Technology
- Support gettid() across platforms
- Implement SA_NODEFER on New Technology
- Move the lock intrinsics into LIBC_INTRIN
- Make SIGTRAP recoverable on New Technology
- Block SIGCHLD in wait4() on New Technology
- Add threading prototypes for XNU and FreeBSD
- Rewrite abort() fixing its minor bugs on XNU/NT
- Shave down a lot of the content in libc/bits/bits.h
- Let signal handlers modify CPU registers on New Technology
2022-04-12 05:20:17 -07:00
Justine Tunney
072e1d2910 Make signal handling work well across platforms
- Fix sigsuspend() on XNU
- Fix strsignal() on non-Linux
- Add unit tests for strsignal()
- Add unit tests for setitimer()
- Add unit tests for sigsuspend()
- Rewrite setitimer() for New Technology
- Rewrite nanosleep() for New Technology
- Polyfill SIGALRM on the New Technology
- select(0,0,0,0) on NT now calls pause()
- Remove some NTDLL calls that aren't needed
- Polyfill SA_NOCLDWAIT on the New Technology
- Polyfill SA_RESETHAND on the New Technology
- Polyfill sigprocmask() on the New Technology
- Polyfill SIGCHLD+SIG_IGN on the New Technology
- Polyfill SA_RESTART masking on the New Technology
- Deliver console signals from main thread on New Technology
- Document SA_RESTART behavior w/ @sarestartable / @norestart
- System call trace in MODE=dbg now prints inherited FDs and signal mask
2022-03-25 07:28:57 -07:00
Justine Tunney
c23b6ecc31 Fix some win32 definitions
You can now use psapi.dll and pdh.dll. Some TODOs for Windows have been
cleared out. We might have a working load average for the platform that
should help GNU Make work well.
2022-03-22 19:54:36 -07:00
Justine Tunney
59e1c245d1 Get more Python tests passing (#141) 2021-08-16 15:26:31 -07:00
Justine Tunney
d932948fb4 Remove more nonstandard stuff from cosmopolitan.h
Fixes #61
2021-03-01 00:18:23 -08:00
Justine Tunney
a37960a3af Remove dollars from system call support symbols 2021-02-03 19:35:29 -08:00
Justine Tunney
d7ac16a9ed Work towards improving signals and processes 2021-01-27 19:34:02 -08:00