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Allow passing through ioctls #743

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Aaron1011 opened this issue May 25, 2019 · 2 comments
Open

Allow passing through ioctls #743

Aaron1011 opened this issue May 25, 2019 · 2 comments
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A-shims Area: This affects the external function shims C-enhancement Category: a PR with an enhancement or an issue tracking an accepted enhancement

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@Aaron1011
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Linux has several PTY-related IOCTls, such as TIOCGWINSZ. It would be nice if Miri could simply 'pass through' these calls to the terminal when running in non-deterministic mode.
@RalfJung
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I consider IOCTLs to be just another form of external communication. That's separate from the kind of non-determinism we already have. So Cc #653.

@RalfJung RalfJung added A-shims Area: This affects the external function shims C-enhancement Category: a PR with an enhancement or an issue tracking an accepted enhancement labels May 25, 2019
@RalfJung
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@Aaron1011 I am not entirely sure what the goal is here and what exactly even is the foreign function to be shimmed. Is this just "support ioctls", or is there more than that? Do you have an example library/application that needs this?

@RalfJung RalfJung changed the title Allow passing through terminal-related foreign functions Allow passing through ioctls Mar 28, 2020
@cgettys-microsoft cgettys-microsoft mentioned this issue Jun 28, 2024
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@RalfJung @Aaron1011