ppc32: semctl fails
Joakim Tjernlund
Joakim.Tjernlund at infinera.com
Thu Dec 7 04:23:33 AEDT 2017
This test, taken from perl Configure, fails on my ppc32, should it?
semctl IPC_STAT failed: errno = Bad Address
is what I get, kernel is 4.1.43
-----------------
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/stat.h>
#ifndef S_IRUSR
# ifdef S_IREAD
#define S_IRUSR S_IREAD
#define S_IWUSR S_IWRITE
#define S_IXUSR S_IEXEC
# else
#define S_IRUSR 0400
#define S_IWUSR 0200
#define S_IXUSR 0100
# endif
# define S_IRGRP (S_IRUSR>>3)
# define S_IWGRP (S_IWUSR>>3)
# define S_IXGRP (S_IXUSR>>3)
# define S_IROTH (S_IRUSR>>6)
# define S_IWOTH (S_IWUSR>>6)
# define S_IXOTH (S_IXUSR>>6)
#endif
#ifndef S_IRWXU
# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
#endif
#include <string.h>
#include <stdio.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
int main() {
int sem, st;
struct semid_ds arg;
#if defined(IPC_PRIVATE) && defined(S_IRWXU) && defined(S_IRWXG) && defined(S_IRWXO) && defined(IPC_CREAT)
sem = semget(IPC_PRIVATE, 1, S_IRWXU|S_IRWXG|S_IRWXO|IPC_CREAT);
if (sem > -1) {
#ifdef IPC_STAT
st = semctl(sem, 0, IPC_STAT, &arg);
if (st == 0)
printf("semid_ds\n");
else
#endif /* IPC_STAT */
printf("semctl IPC_STAT failed: errno = %s\n", strerror(errno));
#ifdef IPC_RMID
if (semctl(sem, 0, IPC_RMID, &arg) != 0)
#endif /* IPC_RMID */
printf("semctl IPC_RMID failed: errno = %d\n", errno);
} else
#endif /* IPC_PRIVATE && ... */
printf("semget failed: errno = %d\n", errno);
return 0;
}
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