RFR: Use SIGRTMAX instead of __SIGRTMAX

[David Holmes]

On 12/04/2017 10:07 AM, Mikael Vidstedt wrote:
>
> The JDK uses (in two places) __SIGRTMAX, but posix refers to SIGRTMAX without the double-underscores prefix. Also, posix also mentions that SIGRTMAX is not guaranteed to be a constant expression. musl doesn’t define __SIGRTMAX, and the definition of SIGRTMAX is not a constant expression.
>
> This change updates the code to use SIGRTMAX,

Ok. Hotspot uses SIGRTMAX so there should be no issues here.

>  and also moves the initialization of the static global variable sigWakeup in linux_close.c to be initialized in the function just before the signal handler gets set up.

Why do we need to move the initialization??

Thanks,
David

> http://cr.openjdk.java.net/~mikael/webrevs/portola/sigrtmax/webrev.00/jdk/webrev/
>
> Cheers,
> Mikael
>