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Altera_Forum's avatar
Altera_Forum
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21 years ago

Semaphore support

Hi, I'm currently trying to initialize a semaphore by making a call to sem_init(), but instead of returning a non-zero value and printing a error condition, Nios II reboots. struct sem_...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Hi smcnutt,

I made some errors when I made my original post. When SemInit() is called something seems to get trashed and cause Nios to reboot: 

SemInit(myThreadName, &mySem, "mySemaphore");

void SemInit(char *who, sem_t *mSem, char *label)
{
   printf("%s is initializing %s\n", who, label);  // Debug message
   if (sem_init(mSem, 0, 0) != 0)
      printf("Failed when initializing semaphore.\n");  // Error message
   printf("%s has initialized %s\n", who, label);  // Debug message
   return;
}

I don't see either the debug or error messages displayed before the reboot.

Thanks for your help.