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-rw-r--r--tools/testing/selftests/bpf/prog_tests/btf_write.c137
1 files changed, 104 insertions, 33 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_write.c b/tools/testing/selftests/bpf/prog_tests/btf_write.c
index b912eeb0b6b4..6e36de1302fc 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_write.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_write.c
@@ -9,6 +9,7 @@ static void gen_btf(struct btf *btf)
const struct btf_var_secinfo *vi;
const struct btf_type *t;
const struct btf_member *m;
+ const struct btf_enum64 *v64;
const struct btf_enum *v;
const struct btf_param *p;
int id, err, str_off;
@@ -171,7 +172,7 @@ static void gen_btf(struct btf *btf)
ASSERT_STREQ(btf__str_by_offset(btf, v->name_off), "v2", "v2_name");
ASSERT_EQ(v->val, 2, "v2_val");
ASSERT_STREQ(btf_type_raw_dump(btf, 9),
- "[9] ENUM 'e1' size=4 vlen=2\n"
+ "[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
"\t'v1' val=1\n"
"\t'v2' val=2", "raw_dump");
@@ -202,7 +203,7 @@ static void gen_btf(struct btf *btf)
ASSERT_EQ(btf_vlen(t), 0, "enum_fwd_kind");
ASSERT_EQ(t->size, 4, "enum_fwd_sz");
ASSERT_STREQ(btf_type_raw_dump(btf, 12),
- "[12] ENUM 'enum_fwd' size=4 vlen=0", "raw_dump");
+ "[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0", "raw_dump");
/* TYPEDEF */
id = btf__add_typedef(btf, "typedef1", 1);
@@ -297,6 +298,58 @@ static void gen_btf(struct btf *btf)
ASSERT_EQ(btf_decl_tag(t)->component_idx, 1, "tag_component_idx");
ASSERT_STREQ(btf_type_raw_dump(btf, 19),
"[19] DECL_TAG 'tag2' type_id=14 component_idx=1", "raw_dump");
+
+ /* TYPE_TAG */
+ id = btf__add_type_tag(btf, "tag1", 1);
+ ASSERT_EQ(id, 20, "tag_id");
+ t = btf__type_by_id(btf, 20);
+ ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag1", "tag_value");
+ ASSERT_EQ(btf_kind(t), BTF_KIND_TYPE_TAG, "tag_kind");
+ ASSERT_EQ(t->type, 1, "tag_type");
+ ASSERT_STREQ(btf_type_raw_dump(btf, 20),
+ "[20] TYPE_TAG 'tag1' type_id=1", "raw_dump");
+
+ /* ENUM64 */
+ id = btf__add_enum64(btf, "e1", 8, true);
+ ASSERT_EQ(id, 21, "enum64_id");
+ err = btf__add_enum64_value(btf, "v1", -1);
+ ASSERT_OK(err, "v1_res");
+ err = btf__add_enum64_value(btf, "v2", 0x123456789); /* 4886718345 */
+ ASSERT_OK(err, "v2_res");
+ t = btf__type_by_id(btf, 21);
+ ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum64_name");
+ ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM64, "enum64_kind");
+ ASSERT_EQ(btf_vlen(t), 2, "enum64_vlen");
+ ASSERT_EQ(t->size, 8, "enum64_sz");
+ v64 = btf_enum64(t) + 0;
+ ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v1", "v1_name");
+ ASSERT_EQ(v64->val_hi32, 0xffffffff, "v1_val");
+ ASSERT_EQ(v64->val_lo32, 0xffffffff, "v1_val");
+ v64 = btf_enum64(t) + 1;
+ ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v2", "v2_name");
+ ASSERT_EQ(v64->val_hi32, 0x1, "v2_val");
+ ASSERT_EQ(v64->val_lo32, 0x23456789, "v2_val");
+ ASSERT_STREQ(btf_type_raw_dump(btf, 21),
+ "[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+ "\t'v1' val=-1\n"
+ "\t'v2' val=4886718345", "raw_dump");
+
+ id = btf__add_enum64(btf, "e1", 8, false);
+ ASSERT_EQ(id, 22, "enum64_id");
+ err = btf__add_enum64_value(btf, "v1", 0xffffffffFFFFFFFF); /* 18446744073709551615 */
+ ASSERT_OK(err, "v1_res");
+ t = btf__type_by_id(btf, 22);
+ ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum64_name");
+ ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM64, "enum64_kind");
+ ASSERT_EQ(btf_vlen(t), 1, "enum64_vlen");
+ ASSERT_EQ(t->size, 8, "enum64_sz");
+ v64 = btf_enum64(t) + 0;
+ ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v1", "v1_name");
+ ASSERT_EQ(v64->val_hi32, 0xffffffff, "v1_val");
+ ASSERT_EQ(v64->val_lo32, 0xffffffff, "v1_val");
+ ASSERT_STREQ(btf_type_raw_dump(btf, 22),
+ "[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+ "\t'v1' val=18446744073709551615", "raw_dump");
}
static void test_btf_add()
@@ -322,12 +375,12 @@ static void test_btf_add()
"\t'f2' type_id=1 bits_offset=32 bitfield_size=16",
"[8] UNION 'u1' size=8 vlen=1\n"
"\t'f1' type_id=1 bits_offset=0 bitfield_size=16",
- "[9] ENUM 'e1' size=4 vlen=2\n"
+ "[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
"\t'v1' val=1\n"
"\t'v2' val=2",
"[10] FWD 'struct_fwd' fwd_kind=struct",
"[11] FWD 'union_fwd' fwd_kind=union",
- "[12] ENUM 'enum_fwd' size=4 vlen=0",
+ "[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
"[13] TYPEDEF 'typedef1' type_id=1",
"[14] FUNC 'func1' type_id=15 linkage=global",
"[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
@@ -337,7 +390,13 @@ static void test_btf_add()
"[17] DATASEC 'datasec1' size=12 vlen=1\n"
"\ttype_id=1 offset=4 size=8",
"[18] DECL_TAG 'tag1' type_id=16 component_idx=-1",
- "[19] DECL_TAG 'tag2' type_id=14 component_idx=1");
+ "[19] DECL_TAG 'tag2' type_id=14 component_idx=1",
+ "[20] TYPE_TAG 'tag1' type_id=1",
+ "[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+ "\t'v1' val=-1\n"
+ "\t'v2' val=4886718345",
+ "[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+ "\t'v1' val=18446744073709551615");
btf__free(btf);
}
@@ -359,7 +418,7 @@ static void test_btf_add_btf()
gen_btf(btf2);
id = btf__add_btf(btf1, btf2);
- if (!ASSERT_EQ(id, 20, "id"))
+ if (!ASSERT_EQ(id, 23, "id"))
goto cleanup;
VALIDATE_RAW_BTF(
@@ -375,12 +434,12 @@ static void test_btf_add_btf()
"\t'f2' type_id=1 bits_offset=32 bitfield_size=16",
"[8] UNION 'u1' size=8 vlen=1\n"
"\t'f1' type_id=1 bits_offset=0 bitfield_size=16",
- "[9] ENUM 'e1' size=4 vlen=2\n"
+ "[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
"\t'v1' val=1\n"
"\t'v2' val=2",
"[10] FWD 'struct_fwd' fwd_kind=struct",
"[11] FWD 'union_fwd' fwd_kind=union",
- "[12] ENUM 'enum_fwd' size=4 vlen=0",
+ "[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
"[13] TYPEDEF 'typedef1' type_id=1",
"[14] FUNC 'func1' type_id=15 linkage=global",
"[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
@@ -391,35 +450,47 @@ static void test_btf_add_btf()
"\ttype_id=1 offset=4 size=8",
"[18] DECL_TAG 'tag1' type_id=16 component_idx=-1",
"[19] DECL_TAG 'tag2' type_id=14 component_idx=1",
+ "[20] TYPE_TAG 'tag1' type_id=1",
+ "[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+ "\t'v1' val=-1\n"
+ "\t'v2' val=4886718345",
+ "[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+ "\t'v1' val=18446744073709551615",
/* types appended from the second BTF */
- "[20] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
- "[21] PTR '(anon)' type_id=20",
- "[22] CONST '(anon)' type_id=24",
- "[23] VOLATILE '(anon)' type_id=22",
- "[24] RESTRICT '(anon)' type_id=23",
- "[25] ARRAY '(anon)' type_id=21 index_type_id=20 nr_elems=10",
- "[26] STRUCT 's1' size=8 vlen=2\n"
- "\t'f1' type_id=20 bits_offset=0\n"
- "\t'f2' type_id=20 bits_offset=32 bitfield_size=16",
- "[27] UNION 'u1' size=8 vlen=1\n"
- "\t'f1' type_id=20 bits_offset=0 bitfield_size=16",
- "[28] ENUM 'e1' size=4 vlen=2\n"
+ "[23] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+ "[24] PTR '(anon)' type_id=23",
+ "[25] CONST '(anon)' type_id=27",
+ "[26] VOLATILE '(anon)' type_id=25",
+ "[27] RESTRICT '(anon)' type_id=26",
+ "[28] ARRAY '(anon)' type_id=24 index_type_id=23 nr_elems=10",
+ "[29] STRUCT 's1' size=8 vlen=2\n"
+ "\t'f1' type_id=23 bits_offset=0\n"
+ "\t'f2' type_id=23 bits_offset=32 bitfield_size=16",
+ "[30] UNION 'u1' size=8 vlen=1\n"
+ "\t'f1' type_id=23 bits_offset=0 bitfield_size=16",
+ "[31] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
"\t'v1' val=1\n"
"\t'v2' val=2",
- "[29] FWD 'struct_fwd' fwd_kind=struct",
- "[30] FWD 'union_fwd' fwd_kind=union",
- "[31] ENUM 'enum_fwd' size=4 vlen=0",
- "[32] TYPEDEF 'typedef1' type_id=20",
- "[33] FUNC 'func1' type_id=34 linkage=global",
- "[34] FUNC_PROTO '(anon)' ret_type_id=20 vlen=2\n"
- "\t'p1' type_id=20\n"
- "\t'p2' type_id=21",
- "[35] VAR 'var1' type_id=20, linkage=global-alloc",
- "[36] DATASEC 'datasec1' size=12 vlen=1\n"
- "\ttype_id=20 offset=4 size=8",
- "[37] DECL_TAG 'tag1' type_id=35 component_idx=-1",
- "[38] DECL_TAG 'tag2' type_id=33 component_idx=1");
+ "[32] FWD 'struct_fwd' fwd_kind=struct",
+ "[33] FWD 'union_fwd' fwd_kind=union",
+ "[34] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
+ "[35] TYPEDEF 'typedef1' type_id=23",
+ "[36] FUNC 'func1' type_id=37 linkage=global",
+ "[37] FUNC_PROTO '(anon)' ret_type_id=23 vlen=2\n"
+ "\t'p1' type_id=23\n"
+ "\t'p2' type_id=24",
+ "[38] VAR 'var1' type_id=23, linkage=global-alloc",
+ "[39] DATASEC 'datasec1' size=12 vlen=1\n"
+ "\ttype_id=23 offset=4 size=8",
+ "[40] DECL_TAG 'tag1' type_id=38 component_idx=-1",
+ "[41] DECL_TAG 'tag2' type_id=36 component_idx=1",
+ "[42] TYPE_TAG 'tag1' type_id=23",
+ "[43] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+ "\t'v1' val=-1\n"
+ "\t'v2' val=4886718345",
+ "[44] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+ "\t'v1' val=18446744073709551615");
cleanup:
btf__free(btf1);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.