* Rich Felker:
On Fri, Nov 23, 2018 at 06:39:04PM +0100, Florian Weimer wrote:
quoted
* Rich Felker:
quoted
On Fri, Nov 23, 2018 at 12:05:20PM -0500, Mathieu Desnoyers wrote:
quoted
There has been presumptions about signals being blocked when the thread
exits throughout this email thread. Out of curiosity, what code is
responsible for disabling signals in this situation ? Related to this,
is it valid to access a IE model TLS variable from a signal handler at
_any_ point where the signal handler nests over thread's execution ?
This includes early start and just before invoking the exit system call.
It should be valid to access *any* TLS object like this, but the
standards don't cover it well.
C++ makes it undefined:
<http://eel.is/c++draft/support.signal#def:evaluation,signal-safe>
C also leaves access to pretty much anything from a signal handler
undefined, but that makes signals basically useless.
Access to atomic variables of thread storage duration is defined,
though.
Thanks,
Florian