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Searched refs:btf (Results 1 – 25 of 115) sorted by relevance

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/linux/tools/testing/selftests/bpf/prog_tests/
H A Dlinked_list.c250 static struct btf *init_btf(void) in init_btf()
253 struct btf *btf; in init_btf() local
255 btf = btf__new_empty(); in init_btf()
256 if (!ASSERT_OK_PTR(btf, "btf__new_empty")) in init_btf()
258 id = btf__add_int(btf, "int", 4, BTF_INT_SIGNED); in init_btf()
261 lid = btf__add_struct(btf, "bpf_spin_lock", 4); in init_btf()
264 hid = btf__add_struct(btf, "bpf_list_head", 16); in init_btf()
267 nid = btf__add_struct(btf, "bpf_list_node", 24); in init_btf()
270 return btf; in init_btf()
272 btf__free(btf); in init_btf()
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H A Dbtf_write.c7 static void gen_btf(struct btf *btf) in gen_btf() argument
17 str_off = btf__find_str(btf, "int"); in gen_btf()
20 str_off = btf__add_str(btf, "int"); in gen_btf()
23 str_off = btf__find_str(btf, "int"); in gen_btf()
27 id = btf__add_int(btf, "int", 4, BTF_INT_SIGNED); in gen_btf()
30 t = btf__type_by_id(btf, 1); in gen_btf()
33 ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "int", "int_name"); in gen_btf()
38 ASSERT_STREQ(btf_type_raw_dump(btf, 1), in gen_btf()
42 id = btf__add_int(btf, "bad sz int", 7, 0); in gen_btf()
45 id = btf__add_int(btf, "bad enc int", 4, 123); in gen_btf()
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H A Dbtf_dump.c3 #include <bpf/btf.h>
26 static int btf_dump_all_types(const struct btf *btf, void *ctx) in btf_dump_all_types() argument
28 size_t type_cnt = btf__type_cnt(btf); in btf_dump_all_types()
32 d = btf_dump__new(btf, btf_dump_printf, ctx, NULL); in btf_dump_all_types()
51 struct btf *btf = NULL; in test_btf_dump_case() local
57 btf = btf__parse_elf(test_file, NULL); in test_btf_dump_case()
58 if (!ASSERT_OK_PTR(btf, "btf_parse_elf")) { in test_btf_dump_case()
59 err = -PTR_ERR(btf); in test_btf_dump_case()
130 struct btf *btf; global() member
184 struct btf *btf; test_btf_dump_incremental() local
285 struct btf *btf; test_btf_dump_type_tags() local
339 btf_dump_data(struct btf * btf,struct btf_dump * d,char * name,char * prefix,__u64 flags,void * ptr,size_t ptr_sz,char * str,const char * expected_val) btf_dump_data() argument
420 test_btf_dump_int_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_int_data() argument
478 test_btf_dump_float_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_float_data() argument
523 test_btf_dump_char_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_char_data() argument
545 test_btf_dump_typedef_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_typedef_data() argument
600 test_btf_dump_enum_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_enum_data() argument
636 test_btf_dump_struct_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_struct_data() argument
871 test_btf_dump_var_data(struct btf * btf,struct btf_dump * d,char * str) test_btf_dump_var_data() argument
883 struct btf *btf; global() member
998 test_btf_datasec(struct btf * btf,struct btf_dump * d,char * str,const char * name,const char * expected_val,void * data,size_t data_sz) test_btf_datasec() argument
1026 struct btf *btf; test_btf_dump_datasec_data() local
1049 struct btf *btf; test_btf_dump() local
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H A Dbtf_field_iter.c43 struct btf *btf = NULL; in test_btf_field_iter() local
46 btf = btf__new_empty(); in test_btf_field_iter()
47 if (!ASSERT_OK_PTR(btf, "empty_btf")) in test_btf_field_iter()
50 btf__add_int(btf, "int", 4, BTF_INT_SIGNED); /* [1] int */ in test_btf_field_iter()
51 btf__add_int(btf, "int64", 8, BTF_INT_SIGNED); /* [2] int64 */ in test_btf_field_iter()
52 btf__add_ptr(btf, 1); /* [3] int * */ in test_btf_field_iter()
53 btf__add_array(btf, 1, 2, 3); /* [4] int64[3] */ in test_btf_field_iter()
54 btf__add_struct(btf, "s1", 12); /* [5] struct s1 { */ in test_btf_field_iter()
55 btf__add_field(btf, "f1", 3, 0, 0); /* int *f1; */ in test_btf_field_iter()
56 btf__add_field(btf, "f2", 1, 0, 0); /* int f2; */ in test_btf_field_iter()
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H A Dlibbpf_str.c23 struct btf *btf; in test_libbpf_bpf_attach_type_str() local
28 btf = btf__parse("/sys/kernel/btf/vmlinux", NULL); in test_libbpf_bpf_attach_type_str()
29 if (!ASSERT_OK_PTR(btf, "btf_parse")) in test_libbpf_bpf_attach_type_str()
33 id = btf__find_by_name_kind(btf, "bpf_attach_type", BTF_KIND_ENUM); in test_libbpf_bpf_attach_type_str()
36 t = btf__type_by_id(btf, id); in test_libbpf_bpf_attach_type_str()
48 attach_type_name = btf__str_by_offset(btf, e->name_off); in test_libbpf_bpf_attach_type_str()
59 btf__free(btf); in test_libbpf_bpf_attach_type_str()
68 struct btf *btf; in test_libbpf_bpf_link_type_str() local
73 btf = btf__parse("/sys/kernel/btf/vmlinux", NULL); in test_libbpf_bpf_link_type_str()
74 if (!ASSERT_OK_PTR(btf, "btf_parse")) in test_libbpf_bpf_link_type_str()
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H A Dlibbpf_probes.c9 struct btf *btf; in test_libbpf_probe_prog_types() local
14 btf = btf__parse("/sys/kernel/btf/vmlinux", NULL); in test_libbpf_probe_prog_types()
15 if (!ASSERT_OK_PTR(btf, "btf_parse")) in test_libbpf_probe_prog_types()
19 id = btf__find_by_name_kind(btf, "bpf_prog_type", BTF_KIND_ENUM); in test_libbpf_probe_prog_types()
22 t = btf__type_by_id(btf, id); in test_libbpf_probe_prog_types()
27 const char *prog_type_name = btf__str_by_offset(btf, e->name_off); in test_libbpf_probe_prog_types()
44 btf__free(btf); in test_libbpf_probe_prog_types()
49 struct btf *btf; in test_libbpf_probe_map_types() local
54 btf = btf__parse("/sys/kernel/btf/vmlinux", NULL); in test_libbpf_probe_map_types()
55 if (!ASSERT_OK_PTR(btf, "btf_parse")) in test_libbpf_probe_map_types()
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H A Dtest_global_funcs.c26 static void check_ctx_arg_type(const struct btf *btf, const struct btf_param *p) in check_ctx_arg_type() argument
31 t = btf__type_by_id(btf, p->type); in check_ctx_arg_type()
35 s = btf_type_raw_dump(btf, t->type); in check_ctx_arg_type()
47 struct btf *btf = NULL; in subtest_ctx_arg_rewrite() local
50 struct btf *kern_btf = NULL; in subtest_ctx_arg_rewrite()
87 btf = btf__load_from_kernel_by_id(info.btf_id); in subtest_ctx_arg_rewrite()
88 if (!ASSERT_OK_PTR(btf, "obj_kern_btf")) in subtest_ctx_arg_rewrite()
99 fn_t = btf__type_by_id(btf, rec->type_id); in subtest_ctx_arg_rewrite()
104 proto_t = btf__type_by_id(btf, fn_t->type); in subtest_ctx_arg_rewrite()
108 name = btf__name_by_offset(btf, fn_t->name_off); in subtest_ctx_arg_rewrite()
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H A Dbtf_endian.c18 struct btf *btf = NULL, *swap_btf = NULL; in test_btf_endian() local
26 btf = btf__parse_elf("btf_dump_test_case_syntax.bpf.o", NULL); in test_btf_endian()
27 if (!ASSERT_OK_PTR(btf, "parse_native_btf")) in test_btf_endian()
30 ASSERT_EQ(btf__endianness(btf), endian, "endian"); in test_btf_endian()
31 btf__set_endianness(btf, swap_endian); in test_btf_endian()
32 ASSERT_EQ(btf__endianness(btf), swap_endian, "endian"); in test_btf_endian()
35 raw_data = btf__raw_data(btf, &raw_sz); in test_btf_endian()
45 ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types"); in test_btf_endian()
71 var_id = btf__add_var(btf, "some_var", BTF_VAR_GLOBAL_ALLOCATED, 1); in test_btf_endian()
77 btf__set_endianness(btf, swap_endian); in test_btf_endian()
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H A Dcore_autosize.c60 struct btf *btf = NULL; in test_core_autosize() local
66 btf = btf__new_empty(); in test_core_autosize()
67 if (!ASSERT_OK_PTR(btf, "empty_btf")) in test_core_autosize()
85 btf__set_pointer_size(btf, 4); in test_core_autosize()
87 char_id = btf__add_int(btf, "unsigned char", 1, 0); in test_core_autosize()
89 short_id = btf__add_int(btf, "unsigned short", 2, 0); in test_core_autosize()
92 int_id = btf__add_int(btf, "long unsigned int", 4, 0); in test_core_autosize()
94 long_long_id = btf__add_int(btf, "unsigned long long", 8, 0); in test_core_autosize()
96 void_ptr_id = btf__add_ptr(btf, 0); in test_core_autosize()
99 id = btf__add_struct(btf, "test_struct", 20 /* bytes */); in test_core_autosize()
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H A Dbtf_dedup_split.c4 #include <bpf/btf.h>
9 struct btf *btf1, *btf2; in test_split_simple()
127 struct btf *btf1, *btf2; in test_split_fwd_resolve()
225 struct btf *btf1, *btf2; in test_split_struct_duped()
332 static void btf_add_dup_struct_in_cu(struct btf *btf, int start_id) in btf_add_dup_struct_in_cu() argument
335 btf__set_pointer_size(btf, 8); /* enforce 64-bit arch */ in btf_add_dup_struct_in_cu()
337 btf__add_int(btf, "int", 4, BTF_INT_SIGNED); /* [1] int */ in btf_add_dup_struct_in_cu()
339 btf__add_struct(btf, "s", 8); /* [2] struct s { */ in btf_add_dup_struct_in_cu()
340 btf__add_field(btf, " in btf_add_dup_struct_in_cu()
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H A Dresolve_btfids.c66 __resolve_symbol(struct btf *btf, int type_id) in BTF_ID()
72 type = btf__type_by_id(btf, type_id); in BTF_ID()
85 str = btf__name_by_offset(btf, type->name_off); in BTF_ID()
100 struct btf *btf; in resolve_symbols() local
104 btf = btf__parse_elf("btf_data.bpf.o", NULL); in resolve_symbols()
105 if (CHECK(libbpf_get_error(btf), "resolve", in resolve_symbols()
109 nr = btf__type_cnt(btf); in resolve_symbols()
112 if (__resolve_symbol(btf, type_id)) in resolve_symbols()
116 btf__free(btf); in resolve_symbols()
H A Dctx_rewrite.c252 static int find_field_offset_aux(struct btf *btf, int btf_id, char *field_name, int off) in find_field_offset_aux() argument
254 const struct btf_type *type = btf__type_by_id(btf, btf_id); in find_field_offset_aux()
273 const char *mname = btf__name_by_offset(btf, m->name_off); in find_field_offset_aux()
276 int msize = find_field_offset_aux(btf, m->type, field_name, in find_field_offset_aux()
291 static int find_field_offset(struct btf *btf, char *pattern, regmatch_t *matches) in find_field_offset() argument
313 btf_id = btf__find_by_name(btf, type_str); in find_field_offset()
319 field_offset = find_field_offset_aux(btf, btf_id, field_str, 0); in find_field_offset()
490 static bool match_pattern(struct btf *btf, char *pattern, char *text, char *reg_map[][2]) in match_pattern() argument
561 field_offset = find_field_offset(btf, pattern, matches); in match_pattern()
587 field_offset = find_field_offset(btf, pattern, matches); in match_pattern()
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H A Dtest_bpf_ma.c16 struct btf *btf; in do_bpf_ma_test() local
24 btf = bpf_object__btf(skel->obj); in do_bpf_ma_test()
25 if (!ASSERT_OK_PTR(btf, "btf")) in do_bpf_ma_test()
30 id = btf__find_by_name_kind(btf, tname, BTF_KIND_STRUCT); in do_bpf_ma_test()
38 id = btf__find_by_name_kind(btf, tname, BTF_KIND_STRUCT); in do_bpf_ma_test()
/linux/tools/lib/bpf/
H A Dbtf.h10 #include <linux/btf.h>
24 struct btf;
37 * @param btf BTF object to free
39 LIBBPF_API void btf__free(struct btf *btf);
55 LIBBPF_API struct btf *btf__new(const void *data, __u32 size);
77 LIBBPF_API struct btf *btf__new_split(const void *data, __u32 size, struct btf *base_btf);
91 LIBBPF_API struct btf *btf__new_empty(void);
110 LIBBPF_API struct btf *btf__new_empty_spli
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H A Drelo_core.h10 const struct btf *btf; member
30 const struct btf *btf; member
71 int __bpf_core_types_are_compat(const struct btf *local_btf, __u32 local_id,
72 const struct btf *targ_btf, __u32 targ_id, int level);
73 int bpf_core_types_are_compat(const struct btf *local_btf, __u32 local_id,
74 const struct btf *targ_btf, __u32 targ_id);
75 int __bpf_core_types_match(const struct btf *local_btf, __u32 local_id, const struct btf *targ_btf,
77 int bpf_core_types_match(const struct btf *local_btf, __u32 local_id, const struct btf *targ_btf,
84 const struct btf *local_btf,
93 int bpf_core_parse_spec(const char *prog_name, const struct btf *btf,
H A Dbtf_relocate.c36 struct btf;
39 struct btf *btf; member
40 const struct btf *base_btf;
41 const struct btf *dist_base_btf;
68 struct btf_type *t = btf_type_by_id(r->btf, i); in btf_relocate_rewrite_type_id()
134 struct btf_type *t = btf_type_by_id(r->btf, i); in btf_mark_embedded_composite_type_ids()
150 t = btf_type_by_id(r->btf, next_id); in btf_mark_embedded_composite_type_ids()
414 struct btf_type *t = btf_type_by_id(r->btf, i); in btf_relocate_rewrite_strs()
432 btf__str_by_offset(r->btf, off), *str_off); in btf_relocate_rewrite_strs()
444 int btf_relocate(struct btf *btf, const struct btf *base_btf, __u32 **id_map) in btf_relocate() argument
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/linux/tools/bpf/bpftool/
H A Dbtf.c107 static const char *btf_str(const struct btf *btf, __u32 off) in btf_str() argument
111 return btf__name_by_offset(btf, off) ? : "(invalid)"; in btf_str()
119 static int dump_btf_type(const struct btf *btf, __u32 id, in dump_btf_type() argument
129 jsonw_string_field(w, "name", btf_str(btf, t->name_off)); in dump_btf_type()
132 btf_str(btf, t->name_off)); in dump_btf_type()
193 const char *name = btf_str(btf, m->name_off); in dump_btf_type()
242 const char *name = btf_str(btf, v->name_off); in dump_btf_type()
280 const char *name = btf_str(btf, v->name_off); in dump_btf_type()
339 const char *name = btf_str(btf, p->name_off); in dump_btf_type()
393 if (v->type < btf__type_cnt(btf)) { in dump_btf_type()
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H A Dxlated_dumper.c230 struct btf *btf = dd->btf; in dump_xlated_json() local
247 if (btf && record) { in dump_xlated_json()
249 btf_dumper_type_only(btf, record->type_id, in dump_xlated_json()
265 btf_dump_linfo_json(btf, linfo, linum); in dump_xlated_json()
315 struct btf *btf = dd->btf; in dump_xlated_plain() local
328 if (btf in dump_xlated_plain()
383 struct btf *btf = dd->btf; dump_xlated_for_graph() local
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H A Dmap.c18 #include <bpf/btf.h>
133 unsigned char *value, struct btf *btf) in print_entry_json() argument
145 if (btf) { in print_entry_json()
147 .btf = btf, in print_entry_json()
178 if (btf) { in print_entry_json()
180 .btf = btf, in print_entry_json()
746 struct bpf_map_info *map_info, struct btf *bt in dump_map_elem() argument
793 get_map_kv_btf(const struct bpf_map_info * info,struct btf ** btf) get_map_kv_btf() argument
819 free_map_kv_btf(struct btf * btf) free_map_kv_btf() argument
831 struct btf *btf = NULL; map_dump() local
1038 struct btf *btf; print_key_value() local
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/linux/tools/testing/selftests/bpf/
H A Dbtf_helpers.h9 int fprintf_btf_type_raw(FILE *out, const struct btf *btf, __u32 id);
10 const char *btf_type_raw_dump(const struct btf *btf, int type_id);
11 int btf_validate_raw(struct btf *btf, int nr_types, const char *exp_types[]);
13 #define VALIDATE_RAW_BTF(btf, raw_types...) \ argument
14 btf_validate_raw(btf, \
18 const char *btf_type_c_dump(const struct btf *btf);
H A Dbtf_helpers.c81 static const char *btf_str(const struct btf *btf, __u32 off) in btf_str() argument
85 return btf__str_by_offset(btf, off) ?: "(invalid)"; in btf_str()
88 int fprintf_btf_type_raw(FILE *out, const struct btf *btf, __u32 id) in fprintf_btf_type_raw() argument
94 t = btf__type_by_id(btf, id); in fprintf_btf_type_raw()
101 fprintf(out, "[%u] %s '%s'", id, btf_kind_str(kind), btf_str(btf, t->name_off)); in fprintf_btf_type_raw()
135 btf_str(btf, m->name_off), m->type, bit_off); in fprintf_btf_type_raw()
150 btf_str(btf, v->name_off), v->val); in fprintf_btf_type_raw()
164 btf_str(btf, v->name_off), in fprintf_btf_type_raw()
181 btf_str(btf, p->name_off), p->type); in fprintf_btf_type_raw()
216 const char *btf_type_raw_dump(const struct btf *btf, int type_id) in btf_type_raw_dump() argument
[all …]
/linux/tools/perf/util/
H A Dbpf-event.c106 struct btf *btf) in perf_env__fetch_btf() argument
112 data = btf__raw_data(btf, &data_size); in perf_env__fetch_btf()
132 struct btf *btf, in synthesize_bpf_prog_name() argument
146 if (btf) { in synthesize_bpf_prog_name()
148 t = btf__type_by_id(btf, finfo->type_id); in synthesize_bpf_prog_name()
149 short_name = btf__name_by_offset(btf, t->name_off); in synthesize_bpf_prog_name()
176 struct btf *btf; member
189 struct btf *btf; in bpf_metadata_read_map_data() local
213 btf = btf__load_from_kernel_by_id(map_info.btf_id); in bpf_metadata_read_map_data()
214 if (!btf) in bpf_metadata_read_map_data()
[all …]
/linux/kernel/bpf/preload/iterators/
H A Diterators.bpf.c34 struct btf { struct
46 struct btf *btf; argument
59 static const char *get_name(struct btf *btf, long btf_id, const char *fallback) in get_name() argument
65 if (!btf) in get_name()
67 str = btf->strings; in get_name()
68 types = btf->types; in get_name()
71 if (name_off >= btf->hdr.str_len) in get_name()
114 get_name(aux->btf, aux->func_info[0].type_id, aux->name), in dump_bpf_prog()
/linux/tools/bpf/bpftool/Documentation/
H A Dbpftool-btf.rst4 bpftool-btf
17 **bpftool** [*OPTIONS*] **btf** *COMMAND*
19 *OPTIONS* := { |COMMON_OPTIONS| | { **-B** | **--base-btf** } }
26 | **bpftool** **btf** { **show** | **list** } [**id** *BTF_ID*]
27 | **bpftool** **btf dump** *BTF_SRC* [**format** *FORMAT*] [**root_id** *ROOT_ID*]
28 | **bpftool** **btf help**
37 bpftool btf { show | list } [id *BTF_ID*]
46 bpftool btf dump *BTF_SRC* [format *FORMAT*] [root_id *ROOT_ID*]
75 bpftool btf help
82 -B, --base-btf *FILE*
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/linux/kernel/trace/
H A Dtrace_btf.c13 const struct btf_type *btf_find_func_proto(const char *func_name, struct btf **btf_p) in btf_find_func_proto()
70 const struct btf_member *btf_find_struct_member(struct btf *btf, in btf_find_struct_member() argument
94 if (btf_type_skip_modifiers(btf, member->type, &tid) && in btf_find_struct_member()
101 name = btf_name_by_offset(btf, member->name_off); in btf_find_struct_member()
113 type = btf_type_by_id(btf, tid); in btf_find_struct_member()

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