7 commits

Author	SHA1	Message	Date
Nico Weber	ed0740d73c	LibC: In posix_spawn(), use _exit instead of exit on child error ... posix_spawn() tries to present semantics as if no fork() is happening behind the scenes, so running arbitrary atexit handlers of the parent in the child seems like the wrong thing to do.	2020-06-20 14:43:27 +02:00
Nico Weber	5208856688	LibC: Add addchdir() / addfchdir() to posix_spawn file actions ... 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=1208	2020-06-20 14:43:27 +02:00
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