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bsd-user: Implement revoke, access, eaccess and faccessat 

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2022-06-12 08:11:30 -06:00
parent a2ba6c7b80
commit 65c6c4c893
2 changed files with 69 additions and 0 deletions
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53
bsd-user/bsd-file.h
View File

@ -258,4 +258,57 @@ static abi_long do_bsd_closefrom(abi_long arg1)
return get_errno(0);
}
/* revoke(2) */
static abi_long do_bsd_revoke(abi_long arg1)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg1);
ret = get_errno(revoke(p)); /* XXX path(p)? */
UNLOCK_PATH(p, arg1);
return ret;
}
/* access(2) */
static abi_long do_bsd_access(abi_long arg1, abi_long arg2)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg1);
ret = get_errno(access(path(p), arg2));
UNLOCK_PATH(p, arg1);
return ret;
}
/* eaccess(2) */
static abi_long do_bsd_eaccess(abi_long arg1, abi_long arg2)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg1);
ret = get_errno(eaccess(path(p), arg2));
UNLOCK_PATH(p, arg1);
return ret;
}
/* faccessat(2) */
static abi_long do_bsd_faccessat(abi_long arg1, abi_long arg2,
abi_long arg3, abi_long arg4)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg2);
ret = get_errno(faccessat(arg1, p, arg3, arg4)); /* XXX path(p)? */
UNLOCK_PATH(p, arg2);
return ret;
}
#endif /* BSD_FILE_H */

16
bsd-user/freebsd/os-syscall.c
View File

@ -285,6 +285,22 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_bsd_closefrom(arg1);
break;
case TARGET_FREEBSD_NR_revoke: /* revoke(2) */
ret = do_bsd_revoke(arg1);
break;
case TARGET_FREEBSD_NR_access: /* access(2) */
ret = do_bsd_access(arg1, arg2);
break;
case TARGET_FREEBSD_NR_eaccess: /* eaccess(2) */
ret = do_bsd_eaccess(arg1, arg2);
break;
case TARGET_FREEBSD_NR_faccessat: /* faccessat(2) */
ret = do_bsd_faccessat(arg1, arg2, arg3, arg4);
break;
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
ret = -TARGET_ENOSYS;