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bsd-user: Add host_to_target_semid_ds for semctl(2)

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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 <sson@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
This commit is contained in:
Stacey Son
2026-02-02 14:53:41 -07:00
committed by Warner Losh
parent b2ce1b6a8e
commit db17761920
1 changed files with 20 additions and 0 deletions
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20
bsd-user/bsd-misc.c
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@@ -116,3 +116,23 @@ 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;
}