sa_mask not supported

[neelabhg]

Reported by @angrave:
Odd non-compliant behavior in the linux-in-the-browser.
The program should ignore CTRL-C while the handler-function is running because sa_mask was filled.

#include <stdio.h> 
#include <unistd.h>
#include <signal.h>
#include <string.h>

void handlerFunction()
{
    write(1,"CTRL-C",6); /* When you see this press CTRL C*/
    while(1) {}
}

int main()
{
    struct sigaction sa;
    memset(&sa, 0 , sizeof(sa));
    sa.sa_handler = handlerFunction;
    sa.sa_flags = SA_RESTART;
    sigfillset(&sa.sa_mask);
    sigaction(SIGALRM, &sa, NULL);
    alarm(1);
    printf("Sleeping..zzzz...\n");
    sleep(2);
    while(1) {}
    return 0;
}

[neelabhg]

This issue still remains after updating jor1k (PR #101).

[wchill]

Looks like the bug is in jor1k, so this issue should be filed there also