tools lib bpf: Add private field for bpf_object
Similar to other classes defined in libbpf.h (map and program), allow 'object' class has its own private data. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: He Kuang <hekuang@huawei.com> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-3-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
9742da0150
commit
10931d2413
|
@ -229,6 +229,10 @@ struct bpf_object {
|
|||
* all objects.
|
||||
*/
|
||||
struct list_head list;
|
||||
|
||||
void *priv;
|
||||
bpf_object_clear_priv_t clear_priv;
|
||||
|
||||
char path[];
|
||||
};
|
||||
#define obj_elf_valid(o) ((o)->efile.elf)
|
||||
|
@ -1229,6 +1233,9 @@ void bpf_object__close(struct bpf_object *obj)
|
|||
if (!obj)
|
||||
return;
|
||||
|
||||
if (obj->clear_priv)
|
||||
obj->clear_priv(obj, obj->priv);
|
||||
|
||||
bpf_object__elf_finish(obj);
|
||||
bpf_object__unload(obj);
|
||||
|
||||
|
@ -1282,6 +1289,22 @@ unsigned int bpf_object__kversion(struct bpf_object *obj)
|
|||
return obj ? obj->kern_version : 0;
|
||||
}
|
||||
|
||||
int bpf_object__set_priv(struct bpf_object *obj, void *priv,
|
||||
bpf_object_clear_priv_t clear_priv)
|
||||
{
|
||||
if (obj->priv && obj->clear_priv)
|
||||
obj->clear_priv(obj, obj->priv);
|
||||
|
||||
obj->priv = priv;
|
||||
obj->clear_priv = clear_priv;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void *bpf_object__priv(struct bpf_object *obj)
|
||||
{
|
||||
return obj ? obj->priv : ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
struct bpf_program *
|
||||
bpf_program__next(struct bpf_program *prev, struct bpf_object *obj)
|
||||
{
|
||||
|
|
|
@ -79,6 +79,11 @@ struct bpf_object *bpf_object__next(struct bpf_object *prev);
|
|||
(pos) != NULL; \
|
||||
(pos) = (tmp), (tmp) = bpf_object__next(tmp))
|
||||
|
||||
typedef void (*bpf_object_clear_priv_t)(struct bpf_object *, void *);
|
||||
int bpf_object__set_priv(struct bpf_object *obj, void *priv,
|
||||
bpf_object_clear_priv_t clear_priv);
|
||||
void *bpf_object__priv(struct bpf_object *prog);
|
||||
|
||||
/* Accessors of bpf_program. */
|
||||
struct bpf_program;
|
||||
struct bpf_program *bpf_program__next(struct bpf_program *prog,
|
||||
|
|
Loading…
Reference in a new issue