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bsd-user: Implement shmctl(2)

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Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-22-kariem.taha2.7@gmail.com>
This commit is contained in:
Stacey Son 2023-09-25 21:27:07 +03:00 committed by Warner Losh
parent 9d14db15b1
commit f9bbe3cf28
2 changed files with 43 additions and 0 deletions
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39
bsd-user/bsd-mem.h
View file

@ -305,4 +305,43 @@ static inline abi_long do_bsd_shmget(abi_long arg1, abi_ulong arg2,
return get_errno(shmget(arg1, arg2, arg3));
}
/* shmctl(2) */
static inline abi_long do_bsd_shmctl(abi_long shmid, abi_long cmd,
abi_ulong buff)
{
struct shmid_ds dsarg;
abi_long ret = -TARGET_EINVAL;
cmd &= 0xff;
switch (cmd) {
case IPC_STAT:
if (target_to_host_shmid_ds(&dsarg, buff)) {
return -TARGET_EFAULT;
}
ret = get_errno(shmctl(shmid, cmd, &dsarg));
if (host_to_target_shmid_ds(buff, &dsarg)) {
return -TARGET_EFAULT;
}
break;
case IPC_SET:
if (target_to_host_shmid_ds(&dsarg, buff)) {
return -TARGET_EFAULT;
}
ret = get_errno(shmctl(shmid, cmd, &dsarg));
break;
case IPC_RMID:
ret = get_errno(shmctl(shmid, cmd, NULL));
break;
default:
ret = -TARGET_EINVAL;
break;
}
return ret;
}
#endif /* BSD_USER_BSD_MEM_H */

4
bsd-user/freebsd/os-syscall.c
View file

@ -867,6 +867,10 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_bsd_shmget(arg1, arg2, arg3);
break;
case TARGET_FREEBSD_NR_shmctl: /* shmctl(2) */
ret = do_bsd_shmctl(arg1, arg2, arg3);
break;
/*
* Misc
*/