Re: [Fwd: sigcontext on Linux-ppc in user space]

["Kevin B. Hendricks" <khendricks@ivey.uwo.ca>]

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, jekacur@ca.ibm.com 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); 
> } 
>  
>  
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