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bsd-user: Implement mlock(2), munlock(2), mlockall(2), munlockall(2), minherit(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: <20230925182709.4834-16-kariem.taha2.7@gmail.com>
This commit is contained in:
Stacey Son 2023-09-25 21:27:01 +03:00 committed by Warner Losh
parent f28a1e4bab
commit 0a49ef02a6
2 changed files with 57 additions and 0 deletions
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37
bsd-user/bsd-mem.h
View File

@ -99,4 +99,41 @@ static inline abi_long do_bsd_msync(abi_long addr, abi_long len, abi_long flags)
return get_errno(msync(g2h_untagged(addr), len, flags));
}
/* mlock(2) */
static inline abi_long do_bsd_mlock(abi_long arg1, abi_long arg2)
{
if (!guest_range_valid_untagged(arg1, arg2)) {
return -TARGET_EINVAL;
}
return get_errno(mlock(g2h_untagged(arg1), arg2));
}
/* munlock(2) */
static inline abi_long do_bsd_munlock(abi_long arg1, abi_long arg2)
{
if (!guest_range_valid_untagged(arg1, arg2)) {
return -TARGET_EINVAL;
}
return get_errno(munlock(g2h_untagged(arg1), arg2));
}
/* mlockall(2) */
static inline abi_long do_bsd_mlockall(abi_long arg1)
{
return get_errno(mlockall(arg1));
}
/* munlockall(2) */
static inline abi_long do_bsd_munlockall(void)
{
return get_errno(munlockall());
}
/* minherit(2) */
static inline abi_long do_bsd_minherit(abi_long addr, abi_long len,
abi_long inherit)
{
return get_errno(minherit(g2h_untagged(addr), len, inherit));
}
#endif /* BSD_USER_BSD_MEM_H */

20
bsd-user/freebsd/os-syscall.c
View File

@ -815,6 +815,26 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_bsd_msync(arg1, arg2, arg3);
break;
case TARGET_FREEBSD_NR_mlock: /* mlock(2) */
ret = do_bsd_mlock(arg1, arg2);
break;
case TARGET_FREEBSD_NR_munlock: /* munlock(2) */
ret = do_bsd_munlock(arg1, arg2);
break;
case TARGET_FREEBSD_NR_mlockall: /* mlockall(2) */
ret = do_bsd_mlockall(arg1);
break;
case TARGET_FREEBSD_NR_munlockall: /* munlockall(2) */
ret = do_bsd_munlockall();
break;
case TARGET_FREEBSD_NR_minherit: /* minherit(2) */
ret = do_bsd_minherit(arg1, arg2, arg3);
break;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048
case TARGET_FREEBSD_NR_shm_open2: /* shm_open2(2) */
ret = do_freebsd_shm_open2(arg1, arg2, arg3, arg4, arg5);