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bpf, selftest: add test cases for BTF Var and DataSec 

Extend test_btf with various positive and negative tests around
BTF verification of kind Var and DataSec. All passing as well:

  # ./test_btf
  [...]
  BTF raw test[4] (global data test #1): OK
  BTF raw test[5] (global data test #2): OK
  BTF raw test[6] (global data test #3): OK
  BTF raw test[7] (global data test #4, unsupported linkage): OK
  BTF raw test[8] (global data test #5, invalid var type): OK
  BTF raw test[9] (global data test #6, invalid var type (fwd type)): OK
  BTF raw test[10] (global data test #7, invalid var type (fwd type)): OK
  BTF raw test[11] (global data test #8, invalid var size): OK
  BTF raw test[12] (global data test #9, invalid var size): OK
  BTF raw test[13] (global data test #10, invalid var size): OK
  BTF raw test[14] (global data test #11, multiple section members): OK
  BTF raw test[15] (global data test #12, invalid offset): OK
  BTF raw test[16] (global data test #13, invalid offset): OK
  BTF raw test[17] (global data test #14, invalid offset): OK
  BTF raw test[18] (global data test #15, not var kind): OK
  BTF raw test[19] (global data test #16, invalid var referencing sec): OK
  BTF raw test[20] (global data test #17, invalid var referencing var): OK
  BTF raw test[21] (global data test #18, invalid var loop): OK
  BTF raw test[22] (global data test #19, invalid var referencing var): OK
  BTF raw test[23] (global data test #20, invalid ptr referencing var): OK
  BTF raw test[24] (global data test #21, var included in struct): OK
  BTF raw test[25] (global data test #22, array of var): OK
  [...]
  PASS:167 SKIP:0 FAIL:0

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Daniel Borkmann 2019-04-09 23:20:18 +02:00 committed by Alexei Starovoitov
parent b915ebe6d9
commit c861168b7c
1 changed files with 663 additions and 2 deletions
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665
tools/testing/selftests/bpf/test_btf.c
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@ -85,6 +85,11 @@ static int __base_pr(enum libbpf_print_level level __attribute__((unused)),
#define BTF_UNION_ENC(name, nr_elems, sz) \
BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_UNION, 0, nr_elems), sz)
#define BTF_VAR_ENC(name, type, linkage) \
BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), type), (linkage)
#define BTF_VAR_SECINFO_ENC(type, offset, size) \
(type), (offset), (size)
#define BTF_MEMBER_ENC(name, type, bits_offset) \
(name), (type), (bits_offset)
#define BTF_ENUM_ENC(name, val) (name), (val)
@ -291,7 +296,6 @@ static struct btf_raw_test raw_tests[] = {
.value_type_id = 3,
.max_entries = 4,
},
{
.descr = "struct test #3 Invalid member offset",
.raw_types = {
@ -319,7 +323,664 @@ static struct btf_raw_test raw_tests[] = {
.btf_load_err = true,
.err_str = "Invalid member bits_offset",
},
/*
* struct A {
* unsigned long long m;
* int n;
* char o;
* [3 bytes hole]
* int p[8];
* };
*/
{
.descr = "global data test #1",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = "struct_test1_map",
.key_size = sizeof(int),
.value_size = 48,
.key_type_id = 1,
.value_type_id = 5,
.max_entries = 4,
},
/*
* struct A {
* unsigned long long m;
* int n;
* char o;
* [3 bytes hole]
* int p[8];
* };
* static struct A t; <- in .bss
*/
{
.descr = "global data test #2",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* .bss section */ /* [7] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48),
BTF_VAR_SECINFO_ENC(6, 0, 48),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 48,
.key_type_id = 0,
.value_type_id = 7,
.max_entries = 1,
},
{
.descr = "global data test #3",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* static int t */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
/* .bss section */ /* [3] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(2, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0t\0.bss",
.str_sec_size = sizeof("\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 3,
.max_entries = 1,
},
{
.descr = "global data test #4, unsupported linkage",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* static int t */
BTF_VAR_ENC(NAME_TBD, 1, 2), /* [2] */
/* .bss section */ /* [3] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(2, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0t\0.bss",
.str_sec_size = sizeof("\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 3,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Linkage not supported",
},
{
.descr = "global data test #5, invalid var type",
.raw_types = {
/* static void t */
BTF_VAR_ENC(NAME_TBD, 0, 0), /* [1] */
/* .bss section */ /* [2] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(1, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0t\0.bss",
.str_sec_size = sizeof("\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 2,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type_id",
},
{
.descr = "global data test #6, invalid var type (fwd type)",
.raw_types = {
/* union A */
BTF_TYPE_ENC(NAME_TBD,
BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
/* static union A t */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
/* .bss section */ /* [3] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(2, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0t\0.bss",
.str_sec_size = sizeof("\0A\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 2,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type",
},
{
.descr = "global data test #7, invalid var type (fwd type)",
.raw_types = {
/* union A */
BTF_TYPE_ENC(NAME_TBD,
BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
/* static union A t */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
/* .bss section */ /* [3] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(1, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0t\0.bss",
.str_sec_size = sizeof("\0A\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 2,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type",
},
{
.descr = "global data test #8, invalid var size",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* .bss section */ /* [7] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48),
BTF_VAR_SECINFO_ENC(6, 0, 47),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 48,
.key_type_id = 0,
.value_type_id = 7,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid size",
},
{
.descr = "global data test #9, invalid var size",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* .bss section */ /* [7] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46),
BTF_VAR_SECINFO_ENC(6, 0, 48),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 48,
.key_type_id = 0,
.value_type_id = 7,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid size",
},
{
.descr = "global data test #10, invalid var size",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* .bss section */ /* [7] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46),
BTF_VAR_SECINFO_ENC(6, 0, 46),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 48,
.key_type_id = 0,
.value_type_id = 7,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid size",
},
{
.descr = "global data test #11, multiple section members",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* static int u */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
/* .bss section */ /* [8] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
BTF_VAR_SECINFO_ENC(6, 10, 48),
BTF_VAR_SECINFO_ENC(7, 58, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 62,
.key_type_id = 0,
.value_type_id = 8,
.max_entries = 1,
},
{
.descr = "global data test #12, invalid offset",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* static int u */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
/* .bss section */ /* [8] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
BTF_VAR_SECINFO_ENC(6, 10, 48),
BTF_VAR_SECINFO_ENC(7, 60, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 62,
.key_type_id = 0,
.value_type_id = 8,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid offset+size",
},
{
.descr = "global data test #13, invalid offset",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* static int u */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
/* .bss section */ /* [8] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
BTF_VAR_SECINFO_ENC(6, 10, 48),
BTF_VAR_SECINFO_ENC(7, 12, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 62,
.key_type_id = 0,
.value_type_id = 8,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid offset",
},
{
.descr = "global data test #14, invalid offset",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* unsigned long long */
BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */
/* char */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */
/* int[8] */
BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */
/* struct A { */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/
BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */
BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */
BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */
/* } */
/* static struct A t */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
/* static int u */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [7] */
/* .bss section */ /* [8] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
BTF_VAR_SECINFO_ENC(7, 58, 4),
BTF_VAR_SECINFO_ENC(6, 10, 48),
BTF_END_RAW,
},
.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 62,
.key_type_id = 0,
.value_type_id = 8,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid offset",
},
{
.descr = "global data test #15, not var kind",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
/* .bss section */ /* [3] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(1, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0t\0.bss",
.str_sec_size = sizeof("\0A\0t\0.bss"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 3,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Not a VAR kind member",
},
{
.descr = "global data test #16, invalid var referencing sec",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
BTF_VAR_ENC(NAME_TBD, 5, 0), /* [2] */
BTF_VAR_ENC(NAME_TBD, 2, 0), /* [3] */
/* a section */ /* [4] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(3, 0, 4),
/* a section */ /* [5] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(6, 0, 4),
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [6] */
BTF_END_RAW,
},
.str_sec = "\0A\0t\0s\0a\0a",
.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type_id",
},
{
.descr = "global data test #17, invalid var referencing var",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
BTF_VAR_ENC(NAME_TBD, 2, 0), /* [3] */
/* a section */ /* [4] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(3, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0t\0s\0a\0a",
.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type_id",
},
{
.descr = "global data test #18, invalid var loop",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
BTF_VAR_ENC(NAME_TBD, 2, 0), /* [2] */
/* .bss section */ /* [3] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(2, 0, 4),
BTF_END_RAW,
},
.str_sec = "\0A\0t\0aaa",
.str_sec_size = sizeof("\0A\0t\0aaa"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type_id",
},
{
.descr = "global data test #19, invalid var referencing var",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
BTF_VAR_ENC(NAME_TBD, 3, 0), /* [2] */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
BTF_END_RAW,
},
.str_sec = "\0A\0t\0s\0a\0a",
.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type_id",
},
{
.descr = "global data test #20, invalid ptr referencing var",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* PTR type_id=3 */ /* [2] */
BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3),
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
BTF_END_RAW,
},
.str_sec = "\0A\0t\0s\0a\0a",
.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid type_id",
},
{
.descr = "global data test #21, var included in struct",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* struct A { */ /* [2] */
BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2),
BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */
BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* VAR type_id=3; */
/* } */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
BTF_END_RAW,
},
.str_sec = "\0A\0t\0s\0a\0a",
.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid member",
},
{
.descr = "global data test #22, array of var",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */
BTF_VAR_ENC(NAME_TBD, 1, 0), /* [3] */
BTF_END_RAW,
},
.str_sec = "\0A\0t\0s\0a\0a",
.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
.map_type = BPF_MAP_TYPE_ARRAY,
.map_name = ".bss",
.key_size = sizeof(int),
.value_size = 4,
.key_type_id = 0,
.value_type_id = 4,
.max_entries = 1,
.btf_load_err = true,
.err_str = "Invalid elem",
},
/* Test member exceeds the size of struct.
*
* struct A {