struct target_semid_ds
{
- struct target_ipc_perm sem_perm;
- abi_ulong sem_otime;
- abi_ulong __unused1;
- abi_ulong sem_ctime;
- abi_ulong __unused2;
- abi_ulong sem_nsems;
- abi_ulong __unused3;
- abi_ulong __unused4;
+ struct target_ipc_perm sem_perm;
+ abi_ulong sem_otime;
+ abi_ulong __unused1;
+ abi_ulong sem_ctime;
+ abi_ulong __unused2;
+ abi_ulong sem_nsems;
+ abi_ulong __unused3;
+ abi_ulong __unused4;
};
static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
return -TARGET_EFAULT;
- if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
- return -TARGET_EFAULT;
+ target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
host_sd->sem_otime = tswapl(target_sd->sem_otime);
host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
return -TARGET_EFAULT;
- if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
- return -TARGET_EFAULT;;
+ host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
target_sd->sem_otime = tswapl(host_sd->sem_otime);
target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
return 0;
}
-struct target_seminfo {
- int semmap;
- int semmni;
- int semmns;
- int semmnu;
- int semmsl;
- int semopm;
- int semume;
- int semusz;
- int semvmx;
- int semaem;
-};
-
-static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
- struct seminfo *host_seminfo)
-{
- struct target_seminfo *target_seminfo;
- if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
- return -TARGET_EFAULT;
- __put_user(host_seminfo->semmap, &target_seminfo->semmap);
- __put_user(host_seminfo->semmni, &target_seminfo->semmni);
- __put_user(host_seminfo->semmns, &target_seminfo->semmns);
- __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
- __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
- __put_user(host_seminfo->semopm, &target_seminfo->semopm);
- __put_user(host_seminfo->semume, &target_seminfo->semume);
- __put_user(host_seminfo->semusz, &target_seminfo->semusz);
- __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
- __put_user(host_seminfo->semaem, &target_seminfo->semaem);
- unlock_user_struct(target_seminfo, target_addr, 1);
- return 0;
-}
-
union semun {
- int val;
- struct semid_ds *buf;
- unsigned short *array;
- struct seminfo *__buf;
+ int val;
+ struct semid_ds *buf;
+ unsigned short *array;
};
union target_semun {
- int val;
- abi_ulong buf;
- abi_ulong array;
- abi_ulong __buf;
+ int val;
+ abi_long buf;
+ unsigned short int *array;
};
-static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
- abi_ulong target_addr)
+static inline abi_long target_to_host_semun(int cmd,
+ union semun *host_su,
+ abi_ulong target_addr,
+ struct semid_ds *ds)
{
- int nsems;
- unsigned short *array;
- union semun semun;
- struct semid_ds semid_ds;
- int i, ret;
-
- semun.buf = &semid_ds;
-
- ret = semctl(semid, 0, IPC_STAT, semun);
- if (ret == -1)
- return get_errno(ret);
-
- nsems = semid_ds.sem_nsems;
-
- *host_array = malloc(nsems*sizeof(unsigned short));
- array = lock_user(VERIFY_READ, target_addr,
- nsems*sizeof(unsigned short), 1);
- if (!array)
- return -TARGET_EFAULT;
-
- for(i=0; i<nsems; i++) {
- __get_user((*host_array)[i], &array[i]);
+ union target_semun *target_su;
+
+ switch( cmd ) {
+ case IPC_STAT:
+ case IPC_SET:
+ if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
+ return -TARGET_EFAULT;
+ target_to_host_semid_ds(ds,target_su->buf);
+ host_su->buf = ds;
+ unlock_user_struct(target_su, target_addr, 0);
+ break;
+ case GETVAL:
+ case SETVAL:
+ if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
+ return -TARGET_EFAULT;
+ host_su->val = tswapl(target_su->val);
+ unlock_user_struct(target_su, target_addr, 0);
+ break;
+ case GETALL:
+ case SETALL:
+ if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
+ return -TARGET_EFAULT;
+ *host_su->array = tswap16(*target_su->array);
+ unlock_user_struct(target_su, target_addr, 0);
+ break;
+ default:
+ gemu_log("semun operation not fully supported: %d\n", (int)cmd);
}
- unlock_user(array, target_addr, 0);
-
return 0;
}
-static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
- unsigned short **host_array)
+static inline abi_long host_to_target_semun(int cmd,
+ abi_ulong target_addr,
+ union semun *host_su,
+ struct semid_ds *ds)
{
- int nsems;
- unsigned short *array;
- union semun semun;
- struct semid_ds semid_ds;
- int i, ret;
-
- semun.buf = &semid_ds;
-
- ret = semctl(semid, 0, IPC_STAT, semun);
- if (ret == -1)
- return get_errno(ret);
-
- nsems = semid_ds.sem_nsems;
-
- array = lock_user(VERIFY_WRITE, target_addr,
- nsems*sizeof(unsigned short), 0);
- if (!array)
- return -TARGET_EFAULT;
-
- for(i=0; i<nsems; i++) {
- __put_user((*host_array)[i], &array[i]);
+ union target_semun *target_su;
+
+ switch( cmd ) {
+ case IPC_STAT:
+ case IPC_SET:
+ if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
+ return -TARGET_EFAULT;
+ host_to_target_semid_ds(target_su->buf,ds);
+ unlock_user_struct(target_su, target_addr, 1);
+ break;
+ case GETVAL:
+ case SETVAL:
+ if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
+ return -TARGET_EFAULT;
+ target_su->val = tswapl(host_su->val);
+ unlock_user_struct(target_su, target_addr, 1);
+ break;
+ case GETALL:
+ case SETALL:
+ if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
+ return -TARGET_EFAULT;
+ *target_su->array = tswap16(*host_su->array);
+ unlock_user_struct(target_su, target_addr, 1);
+ break;
+ default:
+ gemu_log("semun operation not fully supported: %d\n", (int)cmd);
}
- free(*host_array);
- unlock_user(array, target_addr, 1);
-
return 0;
}
-static inline abi_long do_semctl(int semid, int semnum, int cmd,
- union target_semun target_su)
+static inline abi_long do_semctl(int first, int second, int third,
+ abi_long ptr)
{
union semun arg;
struct semid_ds dsarg;
- unsigned short *array;
- struct seminfo seminfo;
- abi_long ret = -TARGET_EINVAL;
- abi_long err;
-
- cmd &= 0xff;
+ int cmd = third&0xff;
+ abi_long ret = 0;
- switch (cmd) {
- case IPC_STAT:
- case IPC_SET:
- case SEM_STAT:
- err = target_to_host_semid_ds(&dsarg, target_su.buf);
- if (err)
- return err;
- arg.buf = &dsarg;
- ret = get_errno(semctl(semid, semnum, cmd, arg));
- err = host_to_target_semid_ds(target_su.buf, &dsarg);
- if (err)
- return err;
- break;
- case GETVAL:
- case SETVAL:
- arg.val = tswapl(target_su.val);
- ret = get_errno(semctl(semid, semnum, cmd, arg));
- target_su.val = tswapl(arg.val);
- break;
- case GETALL:
- case SETALL:
- err = target_to_host_semarray(semid, &array, target_su.array);
- if (err)
- return err;
- arg.array = array;
- ret = get_errno(semctl(semid, semnum, cmd, arg));
- err = host_to_target_semarray(semid, target_su.array, &array);
- if (err)
- return err;
- break;
- case IPC_INFO:
- case SEM_INFO:
- arg.__buf = &seminfo;
- ret = get_errno(semctl(semid, semnum, cmd, arg));
- err = host_to_target_seminfo(target_su.__buf, &seminfo);
- if (err)
- return err;
- break;
- case IPC_RMID:
- case GETPID:
- case GETNCNT:
- case GETZCNT:
- ret = get_errno(semctl(semid, semnum, cmd, NULL));
- break;
+ switch( cmd ) {
+ case GETVAL:
+ target_to_host_semun(cmd,&arg,ptr,&dsarg);
+ ret = get_errno(semctl(first, second, cmd, arg));
+ host_to_target_semun(cmd,ptr,&arg,&dsarg);
+ break;
+ case SETVAL:
+ target_to_host_semun(cmd,&arg,ptr,&dsarg);
+ ret = get_errno(semctl(first, second, cmd, arg));
+ host_to_target_semun(cmd,ptr,&arg,&dsarg);
+ break;
+ case GETALL:
+ target_to_host_semun(cmd,&arg,ptr,&dsarg);
+ ret = get_errno(semctl(first, second, cmd, arg));
+ host_to_target_semun(cmd,ptr,&arg,&dsarg);
+ break;
+ case SETALL:
+ target_to_host_semun(cmd,&arg,ptr,&dsarg);
+ ret = get_errno(semctl(first, second, cmd, arg));
+ host_to_target_semun(cmd,ptr,&arg,&dsarg);
+ break;
+ case IPC_STAT:
+ target_to_host_semun(cmd,&arg,ptr,&dsarg);
+ ret = get_errno(semctl(first, second, cmd, arg));
+ host_to_target_semun(cmd,ptr,&arg,&dsarg);
+ break;
+ case IPC_SET:
+ target_to_host_semun(cmd,&arg,ptr,&dsarg);
+ ret = get_errno(semctl(first, second, cmd, arg));
+ host_to_target_semun(cmd,ptr,&arg,&dsarg);
+ break;
+ default:
+ ret = get_errno(semctl(first, second, cmd, arg));
}
return ret;
}
-struct target_sembuf {
- unsigned short sem_num;
- short sem_op;
- short sem_flg;
-};
-
-static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
- abi_ulong target_addr,
- unsigned nsops)
-{
- struct target_sembuf *target_sembuf;
- int i;
-
- target_sembuf = lock_user(VERIFY_READ, target_addr,
- nsops*sizeof(struct target_sembuf), 1);
- if (!target_sembuf)
- return -TARGET_EFAULT;
-
- for(i=0; i<nsops; i++) {
- __put_user(target_sembuf[i].sem_num, &host_sembuf[i].sem_num);
- __put_user(target_sembuf[i].sem_op, &host_sembuf[i].sem_op);
- __put_user(target_sembuf[i].sem_flg, &host_sembuf[i].sem_flg);
- }
-
- unlock_user(target_sembuf, target_addr, 0);
-
- return 0;
-}
-
-static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
-{
- struct sembuf sops[nsops];
-
- if (target_to_host_sembuf(sops, ptr, nsops))
- return -TARGET_EFAULT;
-
- return semop(semid, sops, nsops);
-}
-
struct target_msqid_ds
{
struct target_ipc_perm msg_perm;
switch (call) {
case IPCOP_semop:
- ret = do_semop(first, ptr, second);
+ ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second));
break;
case IPCOP_semget:
break;
case IPCOP_semctl:
- ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
+ ret = do_semctl(first, second, third, ptr);
+ break;
+
+ case IPCOP_semtimedop:
+ gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
+ ret = -TARGET_ENOSYS;
break;
case IPCOP_msgget:
projects / qemu / commitdiff