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5 commits

Author SHA1 Message Date
Nico Weber
2ddca326be LibC: Add POSIX_SPAWN_SETSIGMASK
This isn't in posix yet, but it is implemented on some platforms
and it will be in a future version:
https://www.austingroupbugs.net/view.php?id=1044

It seems useful, so add it.
2020-06-20 14:43:27 +02:00
Nico Weber
39d1a43c45 LibC: Make sigprocmask error check more consistent with rest of this code 2020-06-20 14:43:27 +02:00
Nico Weber
7ffcc5a8b2 LibC: Implement file actions for posix_spawn 2020-06-19 22:11:38 +02:00
Nico Weber
e89a82a476 LibC: Add support for POSIX_SPAWN_RESETIDS
This is possible now that seteuid() / setegid() are implemented.
2020-06-19 20:34:59 +02:00
Nico Weber
4720635aab LibC: Add posix_spawn()!
All the file actions stuff is still missing for now,
as is POSIX_SPAWN_SETSCHEDULER (not sure what that's
supposed to do) and POSIX_SPAWN_RESETIDS.

Implemented in userspace for now. Once there are users,
it'll likely make sense to make this a syscall for
performance reasons.

A simple test program of the form

    extern char **environ;
    int main(int argc, char* argv[])
    {
        pid_t pid;
        char* args[] = { "ls", NULL };
        posix_spawnp(&pid, "ls", nullptr, nullptr, args, environ);
    }

works fine.
2020-06-17 18:49:06 +02:00