bpo-35823: Allow setsid() after vfork() on Linux. #22945
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It should just be a syscall updating a couple of fields in the kernel side process info. Confirming, in glibc is appears to be a shim for the setsid syscall (based on not finding any code implementing anything special for it) and in uclibc (*much* easier to read) it is clearly just a setsid syscall shim. A breadcrumb _suggesting_ that it is not allowed on Darwin/macOS comes from a commit in emacs: https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00297.html but I don't have a way to verify if that is true or not. As we are not supporting vfork on macOS today I just left a note in a comment.
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It should just be a syscall updating a couple of fields in the kernel side process info. Confirming, in glibc is appears to be a shim for the setsid syscall (based on not finding any code implementing anything special for it) and in uclibc (*much* easier to read) it is clearly just a setsid syscall shim. A breadcrumb _suggesting_ that it is not allowed on Darwin/macOS comes from a commit in emacs: https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00297.html but I don't have a way to verify if that is true or not. As we are not supporting vfork on macOS today I just left a note in a comment.
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It should just be a syscall updating a couple of fields in the kernel side
process info. Confirming, in glibc is appears to be a shim for the setsid
syscall (based on not finding any code implementing anything special for it)
and in uclibc (much easier to read) it is clearly just a setsid syscall shim.
A breadcrumb suggesting that it is not allowed on Darwin/macOS comes from
a commit in emacs: https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00297.html
but I don't have a way to verify if that is true or not.
As we are not supporting vfork on macOS today I just left a note in a comment.
https://bugs.python.org/issue35823