> $system_stack_size

Does such thing even exist? And non-64 bit platforms the address space is small enough that with several threads of execution you may just be unable to grow your stack even up to $system_stack_size because it'd bump into something else.

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masklinn 4 hours ago | parent [-]

> Does such thing even exist?

AFAIK no. There are default stack sizes, but they're just that, defaults, and they can vary on the same system: main thread stacks are generally 8MiB (except for Windows where it's just 1) but the size of ancillary stacks is much smaller everywhere but on linux using glibc.

It should be possible to get the stack root and size using `pthread_getattr_np`, but I don't know if there's anyone bothering with that, and it's a glibc extension.

	▲	MarkSweep 3 hours ago \| parent [-]
		.NET bothers with it, to support RuntimeHelpers.EnsureSufficientExecutionStack [1] and other things. See the pthreads calls used to here [2]. [1]: https://learn.microsoft.com/en-us/dotnet/api/system.runtime.... [2]: https://github.com/dotnet/runtime/blob/b6a3e784f0bb418fd2fa7...