setcontext in a signal handler

[Andreas Schwab]

Will Newton <will.newton@linaro.org> writes:

> It's not clear to me that there is any standard that mandates that
> setcontext cannot be called from a signal handler or whether it is an
> implementation detail of glibc. Does anybody know of any historical
> reasons for this being the case?

No function is async-signal-safe unless explicitly described as such.

Andreas.

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Andreas Schwab, SUSE Labs, schwab@suse.de
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