From: Stacey Son <[email protected]> Add host_to_target_semid_ds() to convert host struct semid_ds to target format for semctl(2) IPC_STAT operations.
Signed-off-by: Stacey Son <[email protected]> Reviewed-by: Richard Henderson <[email protected]> Signed-off-by: Warner Losh <[email protected]> --- bsd-user/bsd-misc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c index 2a7c0520ca..9c47073c5a 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -130,3 +130,23 @@ abi_long target_to_host_semid_ds(struct semid_ds *host_sd, unlock_user_struct(target_sd, target_addr, 0); return 0; } + +abi_long host_to_target_semid_ds(abi_ulong target_addr, + struct semid_ds *host_sd) +{ + struct target_semid_ds *target_sd; + + if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) { + return -TARGET_EFAULT; + } + host_to_target_ipc_perm__locked(&target_sd->sem_perm, + &host_sd->sem_perm); + /* sem_base is not used by kernel for IPC_STAT/IPC_SET */ + /* target_sd->sem_base = h2g((void *)host_sd->sem_base); */ + __put_user(target_sd->sem_nsems, &host_sd->sem_nsems); + __put_user(target_sd->sem_otime, &host_sd->sem_otime); + __put_user(target_sd->sem_ctime, &host_sd->sem_ctime); + unlock_user_struct(target_sd, target_addr, 1); + + return 0; +} -- 2.52.0
