On Mon, Aug 06, 2012 at 05:15:10PM -0700, Daniel Colascione wrote:
>On 8/6/2012 2:07 PM, Daniel Colascione wrote:
>> I just saw a hang building Emacs (using "make bootstrap")
>
>Signal handling appears to be broken. Here's a simple testcase. Run the program
>and hit control-c. It'll print "got Alarm clock", then stop accepting any
>signals at all, even SIGSTOP. The same program works fine on my Debian stable
>box.
I forgot to send out a notice about this.
This particular issue should be fixed in the latest snapshot.
You mention generic "signal handling" rather than "sigwaitinfo" so I don't
know if there are other issues. It doesn't seem like much would work if
signal handling was completely broken, though.
Thanks for the test case.
cgf
>#define _GNU_SOURCE 1
>#include <unistd.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <signal.h>
>#include <pthread.h>
>
>int
>main()
>{
> sigset_t waitmask;
> int sig;
>
> sigemptyset (&waitmask);
> sigaddset (&waitmask, SIGINT);
> sigprocmask (SIG_BLOCK, &waitmask, NULL);
>
> for (;;) {
> sig = sigwaitinfo (&waitmask, NULL);
> fprintf (stderr, "got %s\n", sys_siglist[sig]);
> if (sig == SIGINT) {
> break;
> }
> }
>
> return 0;
>}
>
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