mirror of https://gitee.com/openkylin/linux.git
libbpf: Per-symbol visibility for DSO
Make global symbols in libbpf DSO hidden by default with
-fvisibility=hidden and export symbols that are part of ABI explicitly
with __attribute__((visibility("default"))).
This is common practice that should prevent from accidentally exporting
a symbol, that is not supposed to be a part of ABI what, in turn,
improves both libbpf developer- and user-experiences. See [1] for more
details.
Export control becomes more important since more and more projects use
libbpf.
The patch doesn't export a bunch of netlink related functions since as
agreed in [2] they'll be reworked. That doesn't break bpftool since
bpftool links libbpf statically.
[1] https://www.akkadia.org/drepper/dsohowto.pdf (2.2 Export Control)
[2] https://www.mail-archive.com/netdev@vger.kernel.org/msg251434.html
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrey Ignatov
Alexei Starovoitov
parent
421f4292f4
commit
ab9e084821
|
|
@ -125,6 +125,7 @@ override CFLAGS += $(EXTRA_WARNINGS)
|
|||
override CFLAGS += -Werror -Wall
|
||||
override CFLAGS += -fPIC
|
||||
override CFLAGS += $(INCLUDES)
|
||||
override CFLAGS += -fvisibility=hidden
|
||||
|
||||
ifeq ($(VERBOSE),1)
|
||||
Q =
|
||||
|
|
|
|||
|
|
@ -27,6 +27,10 @@
|
|||
#include <stdbool.h>
|
||||
#include <stddef.h>
|
||||
|
||||
#ifndef LIBBPF_API
|
||||
#define LIBBPF_API __attribute__((visibility("default")))
|
||||
#endif
|
||||
|
||||
struct bpf_create_map_attr {
|
||||
const char *name;
|
||||
enum bpf_map_type map_type;
|
||||
|
|
@ -42,21 +46,24 @@ struct bpf_create_map_attr {
|
|||
__u32 inner_map_fd;
|
||||
};
|
||||
|
||||
int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr);
|
||||
int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
|
||||
int key_size, int value_size, int max_entries,
|
||||
__u32 map_flags, int node);
|
||||
int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
|
||||
int key_size, int value_size, int max_entries,
|
||||
__u32 map_flags);
|
||||
int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
|
||||
int max_entries, __u32 map_flags);
|
||||
int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name,
|
||||
int key_size, int inner_map_fd, int max_entries,
|
||||
__u32 map_flags, int node);
|
||||
int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name,
|
||||
int key_size, int inner_map_fd, int max_entries,
|
||||
__u32 map_flags);
|
||||
LIBBPF_API int
|
||||
bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr);
|
||||
LIBBPF_API int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
|
||||
int key_size, int value_size,
|
||||
int max_entries, __u32 map_flags, int node);
|
||||
LIBBPF_API int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
|
||||
int key_size, int value_size,
|
||||
int max_entries, __u32 map_flags);
|
||||
LIBBPF_API int bpf_create_map(enum bpf_map_type map_type, int key_size,
|
||||
int value_size, int max_entries, __u32 map_flags);
|
||||
LIBBPF_API int bpf_create_map_in_map_node(enum bpf_map_type map_type,
|
||||
const char *name, int key_size,
|
||||
int inner_map_fd, int max_entries,
|
||||
__u32 map_flags, int node);
|
||||
LIBBPF_API int bpf_create_map_in_map(enum bpf_map_type map_type,
|
||||
const char *name, int key_size,
|
||||
int inner_map_fd, int max_entries,
|
||||
__u32 map_flags);
|
||||
|
||||
struct bpf_load_program_attr {
|
||||
enum bpf_prog_type prog_type;
|
||||
|
|
@ -74,44 +81,49 @@ struct bpf_load_program_attr {
|
|||
|
||||
/* Recommend log buffer size */
|
||||
#define BPF_LOG_BUF_SIZE (256 * 1024)
|
||||
int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
|
||||
char *log_buf, size_t log_buf_sz);
|
||||
int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
|
||||
size_t insns_cnt, const char *license,
|
||||
__u32 kern_version, char *log_buf,
|
||||
size_t log_buf_sz);
|
||||
int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
|
||||
size_t insns_cnt, int strict_alignment,
|
||||
const char *license, __u32 kern_version,
|
||||
char *log_buf, size_t log_buf_sz, int log_level);
|
||||
LIBBPF_API int
|
||||
bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
|
||||
char *log_buf, size_t log_buf_sz);
|
||||
LIBBPF_API int bpf_load_program(enum bpf_prog_type type,
|
||||
const struct bpf_insn *insns, size_t insns_cnt,
|
||||
const char *license, __u32 kern_version,
|
||||
char *log_buf, size_t log_buf_sz);
|
||||
LIBBPF_API int bpf_verify_program(enum bpf_prog_type type,
|
||||
const struct bpf_insn *insns,
|
||||
size_t insns_cnt, int strict_alignment,
|
||||
const char *license, __u32 kern_version,
|
||||
char *log_buf, size_t log_buf_sz,
|
||||
int log_level);
|
||||
|
||||
int bpf_map_update_elem(int fd, const void *key, const void *value,
|
||||
__u64 flags);
|
||||
LIBBPF_API int bpf_map_update_elem(int fd, const void *key, const void *value,
|
||||
__u64 flags);
|
||||
|
||||
int bpf_map_lookup_elem(int fd, const void *key, void *value);
|
||||
int bpf_map_delete_elem(int fd, const void *key);
|
||||
int bpf_map_get_next_key(int fd, const void *key, void *next_key);
|
||||
int bpf_obj_pin(int fd, const char *pathname);
|
||||
int bpf_obj_get(const char *pathname);
|
||||
int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
|
||||
unsigned int flags);
|
||||
int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
|
||||
int bpf_prog_detach2(int prog_fd, int attachable_fd, enum bpf_attach_type type);
|
||||
int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
|
||||
void *data_out, __u32 *size_out, __u32 *retval,
|
||||
__u32 *duration);
|
||||
int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
|
||||
int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
|
||||
int bpf_prog_get_fd_by_id(__u32 id);
|
||||
int bpf_map_get_fd_by_id(__u32 id);
|
||||
int bpf_btf_get_fd_by_id(__u32 id);
|
||||
int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
|
||||
int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
|
||||
__u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt);
|
||||
int bpf_raw_tracepoint_open(const char *name, int prog_fd);
|
||||
int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
|
||||
bool do_log);
|
||||
int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len,
|
||||
__u32 *prog_id, __u32 *fd_type, __u64 *probe_offset,
|
||||
__u64 *probe_addr);
|
||||
LIBBPF_API int bpf_map_lookup_elem(int fd, const void *key, void *value);
|
||||
LIBBPF_API int bpf_map_delete_elem(int fd, const void *key);
|
||||
LIBBPF_API int bpf_map_get_next_key(int fd, const void *key, void *next_key);
|
||||
LIBBPF_API int bpf_obj_pin(int fd, const char *pathname);
|
||||
LIBBPF_API int bpf_obj_get(const char *pathname);
|
||||
LIBBPF_API int bpf_prog_attach(int prog_fd, int attachable_fd,
|
||||
enum bpf_attach_type type, unsigned int flags);
|
||||
LIBBPF_API int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
|
||||
LIBBPF_API int bpf_prog_detach2(int prog_fd, int attachable_fd,
|
||||
enum bpf_attach_type type);
|
||||
LIBBPF_API int bpf_prog_test_run(int prog_fd, int repeat, void *data,
|
||||
__u32 size, void *data_out, __u32 *size_out,
|
||||
__u32 *retval, __u32 *duration);
|
||||
LIBBPF_API int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
|
||||
LIBBPF_API int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
|
||||
LIBBPF_API int bpf_prog_get_fd_by_id(__u32 id);
|
||||
LIBBPF_API int bpf_map_get_fd_by_id(__u32 id);
|
||||
LIBBPF_API int bpf_btf_get_fd_by_id(__u32 id);
|
||||
LIBBPF_API int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
|
||||
LIBBPF_API int bpf_prog_query(int target_fd, enum bpf_attach_type type,
|
||||
__u32 query_flags, __u32 *attach_flags,
|
||||
__u32 *prog_ids, __u32 *prog_cnt);
|
||||
LIBBPF_API int bpf_raw_tracepoint_open(const char *name, int prog_fd);
|
||||
LIBBPF_API int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf,
|
||||
__u32 log_buf_size, bool do_log);
|
||||
LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf,
|
||||
__u32 *buf_len, __u32 *prog_id, __u32 *fd_type,
|
||||
__u64 *probe_offset, __u64 *probe_addr);
|
||||
#endif /* __LIBBPF_BPF_H */
|
||||
|
|
|
|||
|
|
@ -6,6 +6,10 @@
|
|||
|
||||
#include <linux/types.h>
|
||||
|
||||
#ifndef LIBBPF_API
|
||||
#define LIBBPF_API __attribute__((visibility("default")))
|
||||
#endif
|
||||
|
||||
#define BTF_ELF_SEC ".BTF"
|
||||
|
||||
struct btf;
|
||||
|
|
@ -14,13 +18,15 @@ struct btf_type;
|
|||
typedef int (*btf_print_fn_t)(const char *, ...)
|
||||
__attribute__((format(printf, 1, 2)));
|
||||
|
||||
void btf__free(struct btf *btf);
|
||||
struct btf *btf__new(__u8 *data, __u32 size, btf_print_fn_t err_log);
|
||||
__s32 btf__find_by_name(const struct btf *btf, const char *type_name);
|
||||
const struct btf_type *btf__type_by_id(const struct btf *btf, __u32 id);
|
||||
__s64 btf__resolve_size(const struct btf *btf, __u32 type_id);
|
||||
int btf__resolve_type(const struct btf *btf, __u32 type_id);
|
||||
int btf__fd(const struct btf *btf);
|
||||
const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
|
||||
LIBBPF_API void btf__free(struct btf *btf);
|
||||
LIBBPF_API struct btf *btf__new(__u8 *data, __u32 size, btf_print_fn_t err_log);
|
||||
LIBBPF_API __s32 btf__find_by_name(const struct btf *btf,
|
||||
const char *type_name);
|
||||
LIBBPF_API const struct btf_type *btf__type_by_id(const struct btf *btf,
|
||||
__u32 id);
|
||||
LIBBPF_API __s64 btf__resolve_size(const struct btf *btf, __u32 type_id);
|
||||
LIBBPF_API int btf__resolve_type(const struct btf *btf, __u32 type_id);
|
||||
LIBBPF_API int btf__fd(const struct btf *btf);
|
||||
LIBBPF_API const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
|
||||
|
||||
#endif /* __LIBBPF_BTF_H */
|
||||
|
|
|
|||
|
|
@ -16,6 +16,10 @@
|
|||
#include <sys/types.h> // for size_t
|
||||
#include <linux/bpf.h>
|
||||
|
||||
#ifndef LIBBPF_API
|
||||
#define LIBBPF_API __attribute__((visibility("default")))
|
||||
#endif
|
||||
|
||||
enum libbpf_errno {
|
||||
__LIBBPF_ERRNO__START = 4000,
|
||||
|
||||
|
|
@ -37,7 +41,7 @@ enum libbpf_errno {
|
|||
__LIBBPF_ERRNO__END,
|
||||
};
|
||||
|
||||
int libbpf_strerror(int err, char *buf, size_t size);
|
||||
LIBBPF_API int libbpf_strerror(int err, char *buf, size_t size);
|
||||
|
||||
/*
|
||||
* __printf is defined in include/linux/compiler-gcc.h. However,
|
||||
|
|
@ -47,9 +51,9 @@ int libbpf_strerror(int err, char *buf, size_t size);
|
|||
typedef int (*libbpf_print_fn_t)(const char *, ...)
|
||||
__attribute__((format(printf, 1, 2)));
|
||||
|
||||
void libbpf_set_print(libbpf_print_fn_t warn,
|
||||
libbpf_print_fn_t info,
|
||||
libbpf_print_fn_t debug);
|
||||
LIBBPF_API void libbpf_set_print(libbpf_print_fn_t warn,
|
||||
libbpf_print_fn_t info,
|
||||
libbpf_print_fn_t debug);
|
||||
|
||||
/* Hide internal to user */
|
||||
struct bpf_object;
|
||||
|
|
@ -59,27 +63,28 @@ struct bpf_object_open_attr {
|
|||
enum bpf_prog_type prog_type;
|
||||
};
|
||||
|
||||
struct bpf_object *bpf_object__open(const char *path);
|
||||
struct bpf_object *bpf_object__open_xattr(struct bpf_object_open_attr *attr);
|
||||
LIBBPF_API struct bpf_object *bpf_object__open(const char *path);
|
||||
LIBBPF_API struct bpf_object *
|
||||
bpf_object__open_xattr(struct bpf_object_open_attr *attr);
|
||||
struct bpf_object *__bpf_object__open_xattr(struct bpf_object_open_attr *attr,
|
||||
int flags);
|
||||
struct bpf_object *bpf_object__open_buffer(void *obj_buf,
|
||||
size_t obj_buf_sz,
|
||||
const char *name);
|
||||
int bpf_object__pin(struct bpf_object *object, const char *path);
|
||||
void bpf_object__close(struct bpf_object *object);
|
||||
LIBBPF_API struct bpf_object *bpf_object__open_buffer(void *obj_buf,
|
||||
size_t obj_buf_sz,
|
||||
const char *name);
|
||||
LIBBPF_API int bpf_object__pin(struct bpf_object *object, const char *path);
|
||||
LIBBPF_API void bpf_object__close(struct bpf_object *object);
|
||||
|
||||
/* Load/unload object into/from kernel */
|
||||
int bpf_object__load(struct bpf_object *obj);
|
||||
int bpf_object__unload(struct bpf_object *obj);
|
||||
const char *bpf_object__name(struct bpf_object *obj);
|
||||
unsigned int bpf_object__kversion(struct bpf_object *obj);
|
||||
int bpf_object__btf_fd(const struct bpf_object *obj);
|
||||
LIBBPF_API int bpf_object__load(struct bpf_object *obj);
|
||||
LIBBPF_API int bpf_object__unload(struct bpf_object *obj);
|
||||
LIBBPF_API const char *bpf_object__name(struct bpf_object *obj);
|
||||
LIBBPF_API unsigned int bpf_object__kversion(struct bpf_object *obj);
|
||||
LIBBPF_API int bpf_object__btf_fd(const struct bpf_object *obj);
|
||||
|
||||
struct bpf_program *
|
||||
LIBBPF_API struct bpf_program *
|
||||
bpf_object__find_program_by_title(struct bpf_object *obj, const char *title);
|
||||
|
||||
struct bpf_object *bpf_object__next(struct bpf_object *prev);
|
||||
LIBBPF_API struct bpf_object *bpf_object__next(struct bpf_object *prev);
|
||||
#define bpf_object__for_each_safe(pos, tmp) \
|
||||
for ((pos) = bpf_object__next(NULL), \
|
||||
(tmp) = bpf_object__next(pos); \
|
||||
|
|
@ -87,19 +92,20 @@ struct bpf_object *bpf_object__next(struct bpf_object *prev);
|
|||
(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);
|
||||
LIBBPF_API int bpf_object__set_priv(struct bpf_object *obj, void *priv,
|
||||
bpf_object_clear_priv_t clear_priv);
|
||||
LIBBPF_API void *bpf_object__priv(struct bpf_object *prog);
|
||||
|
||||
int libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type,
|
||||
enum bpf_attach_type *expected_attach_type);
|
||||
int libbpf_attach_type_by_name(const char *name,
|
||||
enum bpf_attach_type *attach_type);
|
||||
LIBBPF_API int
|
||||
libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type,
|
||||
enum bpf_attach_type *expected_attach_type);
|
||||
LIBBPF_API int libbpf_attach_type_by_name(const char *name,
|
||||
enum bpf_attach_type *attach_type);
|
||||
|
||||
/* Accessors of bpf_program */
|
||||
struct bpf_program;
|
||||
struct bpf_program *bpf_program__next(struct bpf_program *prog,
|
||||
struct bpf_object *obj);
|
||||
LIBBPF_API struct bpf_program *bpf_program__next(struct bpf_program *prog,
|
||||
struct bpf_object *obj);
|
||||
|
||||
#define bpf_object__for_each_program(pos, obj) \
|
||||
for ((pos) = bpf_program__next(NULL, (obj)); \
|
||||
|
|
@ -109,21 +115,24 @@ struct bpf_program *bpf_program__next(struct bpf_program *prog,
|
|||
typedef void (*bpf_program_clear_priv_t)(struct bpf_program *,
|
||||
void *);
|
||||
|
||||
int bpf_program__set_priv(struct bpf_program *prog, void *priv,
|
||||
bpf_program_clear_priv_t clear_priv);
|
||||
LIBBPF_API int bpf_program__set_priv(struct bpf_program *prog, void *priv,
|
||||
bpf_program_clear_priv_t clear_priv);
|
||||
|
||||
void *bpf_program__priv(struct bpf_program *prog);
|
||||
void bpf_program__set_ifindex(struct bpf_program *prog, __u32 ifindex);
|
||||
LIBBPF_API void *bpf_program__priv(struct bpf_program *prog);
|
||||
LIBBPF_API void bpf_program__set_ifindex(struct bpf_program *prog,
|
||||
__u32 ifindex);
|
||||
|
||||
const char *bpf_program__title(struct bpf_program *prog, bool needs_copy);
|
||||
LIBBPF_API const char *bpf_program__title(struct bpf_program *prog,
|
||||
bool needs_copy);
|
||||
|
||||
int bpf_program__load(struct bpf_program *prog, char *license,
|
||||
__u32 kern_version);
|
||||
int bpf_program__fd(struct bpf_program *prog);
|
||||
int bpf_program__pin_instance(struct bpf_program *prog, const char *path,
|
||||
int instance);
|
||||
int bpf_program__pin(struct bpf_program *prog, const char *path);
|
||||
void bpf_program__unload(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__load(struct bpf_program *prog, char *license,
|
||||
__u32 kern_version);
|
||||
LIBBPF_API int bpf_program__fd(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__pin_instance(struct bpf_program *prog,
|
||||
const char *path,
|
||||
int instance);
|
||||
LIBBPF_API int bpf_program__pin(struct bpf_program *prog, const char *path);
|
||||
LIBBPF_API void bpf_program__unload(struct bpf_program *prog);
|
||||
|
||||
struct bpf_insn;
|
||||
|
||||
|
|
@ -184,34 +193,36 @@ typedef int (*bpf_program_prep_t)(struct bpf_program *prog, int n,
|
|||
struct bpf_insn *insns, int insns_cnt,
|
||||
struct bpf_prog_prep_result *res);
|
||||
|
||||
int bpf_program__set_prep(struct bpf_program *prog, int nr_instance,
|
||||
bpf_program_prep_t prep);
|
||||
LIBBPF_API int bpf_program__set_prep(struct bpf_program *prog, int nr_instance,
|
||||
bpf_program_prep_t prep);
|
||||
|
||||
int bpf_program__nth_fd(struct bpf_program *prog, int n);
|
||||
LIBBPF_API int bpf_program__nth_fd(struct bpf_program *prog, int n);
|
||||
|
||||
/*
|
||||
* Adjust type of BPF program. Default is kprobe.
|
||||
*/
|
||||
int bpf_program__set_socket_filter(struct bpf_program *prog);
|
||||
int bpf_program__set_tracepoint(struct bpf_program *prog);
|
||||
int bpf_program__set_raw_tracepoint(struct bpf_program *prog);
|
||||
int bpf_program__set_kprobe(struct bpf_program *prog);
|
||||
int bpf_program__set_sched_cls(struct bpf_program *prog);
|
||||
int bpf_program__set_sched_act(struct bpf_program *prog);
|
||||
int bpf_program__set_xdp(struct bpf_program *prog);
|
||||
int bpf_program__set_perf_event(struct bpf_program *prog);
|
||||
void bpf_program__set_type(struct bpf_program *prog, enum bpf_prog_type type);
|
||||
void bpf_program__set_expected_attach_type(struct bpf_program *prog,
|
||||
enum bpf_attach_type type);
|
||||
LIBBPF_API int bpf_program__set_socket_filter(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_tracepoint(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_raw_tracepoint(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_kprobe(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_sched_cls(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_sched_act(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_xdp(struct bpf_program *prog);
|
||||
LIBBPF_API int bpf_program__set_perf_event(struct bpf_program *prog);
|
||||
LIBBPF_API void bpf_program__set_type(struct bpf_program *prog,
|
||||
enum bpf_prog_type type);
|
||||
LIBBPF_API void
|
||||
bpf_program__set_expected_attach_type(struct bpf_program *prog,
|
||||
enum bpf_attach_type type);
|
||||
|
||||
bool bpf_program__is_socket_filter(struct bpf_program *prog);
|
||||
bool bpf_program__is_tracepoint(struct bpf_program *prog);
|
||||
bool bpf_program__is_raw_tracepoint(struct bpf_program *prog);
|
||||
bool bpf_program__is_kprobe(struct bpf_program *prog);
|
||||
bool bpf_program__is_sched_cls(struct bpf_program *prog);
|
||||
bool bpf_program__is_sched_act(struct bpf_program *prog);
|
||||
bool bpf_program__is_xdp(struct bpf_program *prog);
|
||||
bool bpf_program__is_perf_event(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_socket_filter(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_tracepoint(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_raw_tracepoint(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_kprobe(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_sched_cls(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_sched_act(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_xdp(struct bpf_program *prog);
|
||||
LIBBPF_API bool bpf_program__is_perf_event(struct bpf_program *prog);
|
||||
|
||||
/*
|
||||
* No need for __attribute__((packed)), all members of 'bpf_map_def'
|
||||
|
|
@ -232,39 +243,39 @@ struct bpf_map_def {
|
|||
* so no need to worry about a name clash.
|
||||
*/
|
||||
struct bpf_map;
|
||||
struct bpf_map *
|
||||
LIBBPF_API struct bpf_map *
|
||||
bpf_object__find_map_by_name(struct bpf_object *obj, const char *name);
|
||||
|
||||
/*
|
||||
* Get bpf_map through the offset of corresponding struct bpf_map_def
|
||||
* in the BPF object file.
|
||||
*/
|
||||
struct bpf_map *
|
||||
LIBBPF_API struct bpf_map *
|
||||
bpf_object__find_map_by_offset(struct bpf_object *obj, size_t offset);
|
||||
|
||||
struct bpf_map *
|
||||
LIBBPF_API struct bpf_map *
|
||||
bpf_map__next(struct bpf_map *map, struct bpf_object *obj);
|
||||
#define bpf_map__for_each(pos, obj) \
|
||||
for ((pos) = bpf_map__next(NULL, (obj)); \
|
||||
(pos) != NULL; \
|
||||
(pos) = bpf_map__next((pos), (obj)))
|
||||
|
||||
int bpf_map__fd(struct bpf_map *map);
|
||||
const struct bpf_map_def *bpf_map__def(struct bpf_map *map);
|
||||
const char *bpf_map__name(struct bpf_map *map);
|
||||
__u32 bpf_map__btf_key_type_id(const struct bpf_map *map);
|
||||
__u32 bpf_map__btf_value_type_id(const struct bpf_map *map);
|
||||
LIBBPF_API int bpf_map__fd(struct bpf_map *map);
|
||||
LIBBPF_API const struct bpf_map_def *bpf_map__def(struct bpf_map *map);
|
||||
LIBBPF_API const char *bpf_map__name(struct bpf_map *map);
|
||||
LIBBPF_API __u32 bpf_map__btf_key_type_id(const struct bpf_map *map);
|
||||
LIBBPF_API __u32 bpf_map__btf_value_type_id(const struct bpf_map *map);
|
||||
|
||||
typedef void (*bpf_map_clear_priv_t)(struct bpf_map *, void *);
|
||||
int bpf_map__set_priv(struct bpf_map *map, void *priv,
|
||||
bpf_map_clear_priv_t clear_priv);
|
||||
void *bpf_map__priv(struct bpf_map *map);
|
||||
int bpf_map__reuse_fd(struct bpf_map *map, int fd);
|
||||
bool bpf_map__is_offload_neutral(struct bpf_map *map);
|
||||
void bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex);
|
||||
int bpf_map__pin(struct bpf_map *map, const char *path);
|
||||
LIBBPF_API int bpf_map__set_priv(struct bpf_map *map, void *priv,
|
||||
bpf_map_clear_priv_t clear_priv);
|
||||
LIBBPF_API void *bpf_map__priv(struct bpf_map *map);
|
||||
LIBBPF_API int bpf_map__reuse_fd(struct bpf_map *map, int fd);
|
||||
LIBBPF_API bool bpf_map__is_offload_neutral(struct bpf_map *map);
|
||||
LIBBPF_API void bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex);
|
||||
LIBBPF_API int bpf_map__pin(struct bpf_map *map, const char *path);
|
||||
|
||||
long libbpf_get_error(const void *ptr);
|
||||
LIBBPF_API long libbpf_get_error(const void *ptr);
|
||||
|
||||
struct bpf_prog_load_attr {
|
||||
const char *file;
|
||||
|
|
@ -273,12 +284,12 @@ struct bpf_prog_load_attr {
|
|||
int ifindex;
|
||||
};
|
||||
|
||||
int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr,
|
||||
struct bpf_object **pobj, int *prog_fd);
|
||||
int bpf_prog_load(const char *file, enum bpf_prog_type type,
|
||||
struct bpf_object **pobj, int *prog_fd);
|
||||
LIBBPF_API int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr,
|
||||
struct bpf_object **pobj, int *prog_fd);
|
||||
LIBBPF_API int bpf_prog_load(const char *file, enum bpf_prog_type type,
|
||||
struct bpf_object **pobj, int *prog_fd);
|
||||
|
||||
int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags);
|
||||
LIBBPF_API int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags);
|
||||
|
||||
enum bpf_perf_event_ret {
|
||||
LIBBPF_PERF_EVENT_DONE = 0,
|
||||
|
|
@ -288,10 +299,11 @@ enum bpf_perf_event_ret {
|
|||
|
||||
typedef enum bpf_perf_event_ret (*bpf_perf_event_print_t)(void *event,
|
||||
void *priv);
|
||||
int bpf_perf_event_read_simple(void *mem, unsigned long size,
|
||||
unsigned long page_size,
|
||||
void **buf, size_t *buf_len,
|
||||
bpf_perf_event_print_t fn, void *priv);
|
||||
LIBBPF_API int bpf_perf_event_read_simple(void *mem, unsigned long size,
|
||||
unsigned long page_size,
|
||||
void **buf, size_t *buf_len,
|
||||
bpf_perf_event_print_t fn,
|
||||
void *priv);
|
||||
|
||||
struct nlattr;
|
||||
typedef int (*libbpf_dump_nlmsg_t)(void *cookie, void *msg, struct nlattr **tb);
|
||||
|
|
|
|||
Loading…
Reference in New Issue