be919d3bf7
We now have a low-level function z_dynamic_object_create() which is not a system call and is used for installing kernel objects that are not supported by k_object_alloc(). Checking for valid object type enumeration values moved completely to the implementation function. A few debug messages and comments were improved. Futexes and sys_mutexes are now properly excluded from dynamic generation. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2017 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <kernel.h>
|
|
#include <syscall_handler.h>
|
|
#include <kernel_structs.h>
|
|
|
|
static struct z_object *validate_any_object(void *obj)
|
|
{
|
|
struct z_object *ko;
|
|
int ret;
|
|
|
|
ko = z_object_find(obj);
|
|
|
|
/* This can be any kernel object and it doesn't have to be
|
|
* initialized
|
|
*/
|
|
ret = z_object_validate(ko, K_OBJ_ANY, _OBJ_INIT_ANY);
|
|
if (ret != 0) {
|
|
#ifdef CONFIG_LOG
|
|
z_dump_object_error(ret, obj, ko, K_OBJ_ANY);
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
return ko;
|
|
}
|
|
|
|
/* Normally these would be included in userspace.c, but the way
|
|
* syscall_dispatch.c declares weak handlers results in build errors if these
|
|
* are located in userspace.c. Just put in a separate file.
|
|
*
|
|
* To avoid double z_object_find() lookups, we don't call the implementation
|
|
* function, but call a level deeper.
|
|
*/
|
|
static inline void z_vrfy_k_object_access_grant(void *object,
|
|
struct k_thread *thread)
|
|
{
|
|
struct z_object *ko;
|
|
|
|
Z_OOPS(Z_SYSCALL_OBJ_INIT(thread, K_OBJ_THREAD));
|
|
ko = validate_any_object(object);
|
|
Z_OOPS(Z_SYSCALL_VERIFY_MSG(ko != NULL, "object %p access denied",
|
|
object));
|
|
z_thread_perms_set(ko, thread);
|
|
}
|
|
#include <syscalls/k_object_access_grant_mrsh.c>
|
|
|
|
static inline void z_vrfy_k_object_release(void *object)
|
|
{
|
|
struct z_object *ko;
|
|
|
|
ko = validate_any_object((void *)object);
|
|
Z_OOPS(Z_SYSCALL_VERIFY_MSG(ko != NULL, "object %p access denied",
|
|
(void *)object));
|
|
z_thread_perms_clear(ko, _current);
|
|
}
|
|
#include <syscalls/k_object_release_mrsh.c>
|
|
|
|
static inline void *z_vrfy_k_object_alloc(enum k_objects otype)
|
|
{
|
|
return z_impl_k_object_alloc(otype);
|
|
}
|
|
#include <syscalls/k_object_alloc_mrsh.c>
|