jackcartersmith/xilinx-usb-driver
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cable sharing for USB needs to overload semop, this adds a disabled stub

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Michael Gernoth 2008-09-23 16:23:20 +02:00
parent 23138e94d0
commit 1fc8f7a47d
1 changed files with 25 additions and 0 deletions
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25
usb-driver.c
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@ -39,6 +39,8 @@
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <bits/wordsize.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include "usb-driver.h"
#include "config.h"
#include "xpcu.h"
@ -624,6 +626,29 @@ int access(const char *pathname, int mode) {
}
}
#if 0
/* USB cable sharing needs to overload semop, TODO! */
int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
static int (*func) (int, struct sembuf*, size_t) = NULL;
int i;
if (!func)
func = (int (*) (int, struct sembuf*, size_t)) dlsym(RTLD_NEXT, "semop");
fprintf(stderr,"semop: semid: 0x%X, elements: %d\n", __semid, __nsops);
for (i = 0; i < __nsops; i++) {
fprintf(stderr, " num: %u, op: %d, flg: %d\n", __sops[i].sem_num, __sops[i].sem_op, __sops[i].sem_flg);
if (__sops[i].sem_op < 0) {
fprintf(stderr, "SEMAPHORE LOCK\n");
} else {
fprintf(stderr, "SEMAPHORE UNLOCK\n");
}
}
return (*func)(__semid, __sops, __nsops);
}
#endif
#if __WORDSIZE == 32
int uname (struct utsname *__name) {
static int (*func) (struct utsname*);