bsd-user: Add host_to_target_semid_ds for semctl(2)
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>
Stacey Son committed
Feb 2, 2026 at 14:53 UTC
db1776192059fede1b93faa28ad9029b89346fcc
1 file changed
+20
bsd-user/bsd-misc.c
+20
@@ -116,3 +116,23 @@ abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
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unlock_user_struct(target_sd, target_addr, 0);
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return 0;
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}
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+
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+abi_long host_to_target_semid_ds(abi_ulong target_addr,
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+ struct semid_ds *host_sd)
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+{
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+ struct target_semid_ds *target_sd;
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+
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+ if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) {
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+ return -TARGET_EFAULT;
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+ }
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+ host_to_target_ipc_perm__locked(&target_sd->sem_perm,
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+ &host_sd->sem_perm);
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+ /* sem_base is not used by kernel for IPC_STAT/IPC_SET */
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+ /* target_sd->sem_base = h2g((void *)host_sd->sem_base); */
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+ __put_user(target_sd->sem_nsems, &host_sd->sem_nsems);
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+ __put_user(target_sd->sem_otime, &host_sd->sem_otime);
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+ __put_user(target_sd->sem_ctime, &host_sd->sem_ctime);
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+ unlock_user_struct(target_sd, target_addr, 1);
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+
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+ return 0;
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+}