get/set/swapcontext + linuxthreads/glibc + MTasker

[Ulrich Drepper]

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Roland McGrath wrote:

> You can use sigaltstack for each thread with N separate signal stacks.

There is no wording in the standard whether the signal stack is a
process or thread property.  The former makes no sense but this would
"only" require not allowing the use of sigaltstack in multi-threaded
apps.  I've an interpretation request outstanding.

In any case, no portable application can use it anyway since this is in
the standard:


Use of this function by library threads that are not bound to
kernel-scheduled entities results in undefined behavior.


- -- 
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