Re: SIGPROF + SIGCHLD and igc

[Gerd Möllmann]

Helmut Eller <eller.helmut@gmail.com> writes:

> On Fri, Dec 27 2024, Gerd Möllmann wrote:
>
>>> Another observation: MPS sends SIGXFSZ and SIGXCPU to stop and resume
>>> threads.  We could intercept those signals and block SIGPROF while the
>>> thread is stopped.  Obviously a hack, but could still be useful.
>>
>> Do you know if it does the same on macOS? It sounds like something the
>> Mach heritage of macOS might kick in.
>
> Sorry, I don't know anything about Mach.  The code in thxc.c seems to
> use a thread_suspend function.
>
> Helmut

That seems to be a kernel function

  https://developer.apple.com/documentation/kernel/1418833-thread_suspend