Ok, actually the segfault was for a more complicated function, but the
simplified example still gives the wrong answer. i.e scp should point to a
struct sigcontext and scp->signal should be 10 in the sample program.
John Kacur/Toronto/IBM@IBMCA
[EMAIL PROTECTED]
(416) 448-2584 (phone)
778-2584 (tie line)
"Kevin B. Hendricks" <[EMAIL PROTECTED]> on 01/25/2001 01:10:40 PM
Please respond to [EMAIL PROTECTED]
To: John Kacur/Toronto/IBM@IBMCA
cc: [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: [Fwd: sigcontext on Linux-ppc in user space]
Hi,
Here is what I get from running it on my system (ppc linux with 2.2.15
kernel with some mods and glibc-2.1.3).
But no segfault.
Kevin
[kbhend@localhost ~]$ gcc -O2 -ojunk junk.c
[kbhend@localhost ~]$ ./junk
SIGUSR1 = 10
scp = 7fffe9a4
scp->signal = 0
[kbhend@localhost ~]$
On Thursday, January 25, 2001, at 10:09 AM, [EMAIL PROTECTED] wrote:
> #include <stdio.h>
> #include <signal.h>
>
> /* Function Prototypes */
> void install_sigusr1_handler(void);
> void sigusr_handler(int , siginfo_t *, struct sigcontext * scp);
>
> int main(void)
> {
> install_sigusr1_handler();
> printf("SIGUSR1 = %d\n", SIGUSR1);
> raise(SIGUSR1);
> exit(0);
> }
>
> void install_sigusr1_handler(void)
> {
> struct sigaction newAct;
>
> if (sigemptyset(&newAct.sa_mask) != 0) {
> fprintf(stderr, "Warning, sigemptyset failed.\n");
> }
>
> newAct.sa_flags = 0;
> newAct.sa_flags |= SA_SIGINFO | SA_RESTART;
>
> newAct.sa_sigaction = (void
> (*)(int,siginfo_t*,void*))sigusr_handler;
>
> if (sigaction(SIGUSR1, &newAct, NULL) != 0) {
> fprintf(stderr, "Couldn't install SIGUSR1 handler.\n");
> fprintf(stderr, "Exiting.\n");
> exit(1);
> }
> }
>
> void sigusr_handler(int signo, siginfo_t *siginfp, struct sigcontext *
scp)
> {
> printf("scp = %08x\n", scp);
> printf("scp->signal = %d\n", scp->signal);
> }
>
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
Please read the FAQ at http://www.tux.org/lkml/
