diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/btf.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/btf.c | 6811 |
1 files changed, 6811 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c new file mode 100644 index 000000000000..93162484c2ca --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/btf.c @@ -0,0 +1,6811 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018 Facebook */ + +#include <linux/bpf.h> +#include <linux/btf.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/filter.h> +#include <linux/unistd.h> +#include <bpf/bpf.h> +#include <sys/resource.h> +#include <libelf.h> +#include <gelf.h> +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <stdarg.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <assert.h> +#include <bpf/libbpf.h> +#include <bpf/btf.h> + +#include "bpf_rlimit.h" +#include "bpf_util.h" +#include "../test_btf.h" +#include "test_progs.h" + +#define MAX_INSNS 512 +#define MAX_SUBPROGS 16 + +static int duration = 0; +static bool always_log; + +#undef CHECK +#define CHECK(condition, format...) _CHECK(condition, "check", duration, format) + +#define BTF_END_RAW 0xdeadbeef +#define NAME_TBD 0xdeadb33f + +#define NAME_NTH(N) (0xffff0000 | N) +#define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xffff0000) +#define GET_NAME_NTH_IDX(X) (X & 0x0000ffff) + +#define MAX_NR_RAW_U32 1024 +#define BTF_LOG_BUF_SIZE 65535 + +static char btf_log_buf[BTF_LOG_BUF_SIZE]; + +static struct btf_header hdr_tmpl = { + .magic = BTF_MAGIC, + .version = BTF_VERSION, + .hdr_len = sizeof(struct btf_header), +}; + +/* several different mapv kinds(types) supported by pprint */ +enum pprint_mapv_kind_t { + PPRINT_MAPV_KIND_BASIC = 0, + PPRINT_MAPV_KIND_INT128, +}; + +struct btf_raw_test { + const char *descr; + const char *str_sec; + const char *map_name; + const char *err_str; + __u32 raw_types[MAX_NR_RAW_U32]; + __u32 str_sec_size; + enum bpf_map_type map_type; + __u32 key_size; + __u32 value_size; + __u32 key_type_id; + __u32 value_type_id; + __u32 max_entries; + bool btf_load_err; + bool map_create_err; + bool ordered_map; + bool lossless_map; + bool percpu_map; + int hdr_len_delta; + int type_off_delta; + int str_off_delta; + int str_len_delta; + enum pprint_mapv_kind_t mapv_kind; +}; + +#define BTF_STR_SEC(str) \ + .str_sec = str, .str_sec_size = sizeof(str) + +static struct btf_raw_test raw_tests[] = { +/* enum E { + * E0, + * E1, + * }; + * + * struct A { + * unsigned long long m; + * int n; + * char o; + * [3 bytes hole] + * int p[8]; + * int q[4][8]; + * enum E r; + * }; + */ +{ + .descr = "struct 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, 6), 180), + 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_MEMBER_ENC(NAME_TBD, 6, 384),/* int q[4][8] */ + BTF_MEMBER_ENC(NAME_TBD, 7, 1408), /* enum E r */ + /* } */ + /* int[4][8] */ + BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [6] */ + /* enum E */ /* [7] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1", + .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_test1_map", + .key_size = sizeof(int), + .value_size = 180, + .key_type_id = 1, + .value_type_id = 5, + .max_entries = 4, +}, + +/* typedef struct b Struct_B; + * + * struct A { + * int m; + * struct b n[4]; + * const Struct_B o[4]; + * }; + * + * struct B { + * int m; + * int n; + * }; + */ +{ + .descr = "struct test #2", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* struct b [4] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(4, 1, 4), + + /* struct A { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 3), 68), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct B n[4] */ + BTF_MEMBER_ENC(NAME_TBD, 8, 288),/* const Struct_B o[4];*/ + /* } */ + + /* struct B { */ /* [4] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */ + /* } */ + + /* const int */ /* [5] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), + /* typedef struct b Struct_B */ /* [6] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 4), + /* const Struct_B */ /* [7] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 6), + /* const Struct_B [4] */ /* [8] */ + BTF_TYPE_ARRAY_ENC(7, 1, 4), + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0n\0o\0B\0m\0n\0Struct_B", + .str_sec_size = sizeof("\0A\0m\0n\0o\0B\0m\0n\0Struct_B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_test2_map", + .key_size = sizeof(int), + .value_size = 68, + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, +}, +{ + .descr = "struct test #3 Invalid member offset", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int64 */ /* [2] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), + + /* struct A { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 16), + BTF_MEMBER_ENC(NAME_TBD, 1, 64), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* int64 n; */ + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0n\0", + .str_sec_size = sizeof("\0A\0m\0n\0"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_test3_map", + .key_size = sizeof(int), + .value_size = 16, + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, + .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 { + * int m; + * int n; + * }; + */ +{ + .descr = "size check test #1", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* struct A { */ /* [2] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */ + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0n", + .str_sec_size = sizeof("\0A\0m\0n"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "size_check1_map", + .key_size = sizeof(int), + .value_size = 1, + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +/* Test member exeeds the size of struct + * + * struct A { + * int m; + * int n[2]; + * }; + */ +{ + .descr = "size check test #2", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), + /* int[2] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(1, 1, 2), + /* struct A { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 3 - 1), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* int n[2]; */ + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0n", + .str_sec_size = sizeof("\0A\0m\0n"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "size_check2_map", + .key_size = sizeof(int), + .value_size = 1, + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +/* Test member exeeds the size of struct + * + * struct A { + * int m; + * void *n; + * }; + */ +{ + .descr = "size check test #3", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), + /* void* */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), + /* struct A { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) + sizeof(void *) - 1), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* void *n; */ + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0n", + .str_sec_size = sizeof("\0A\0m\0n"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "size_check3_map", + .key_size = sizeof(int), + .value_size = 1, + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +/* Test member exceeds the size of struct + * + * enum E { + * E0, + * E1, + * }; + * + * struct A { + * int m; + * enum E n; + * }; + */ +{ + .descr = "size check test #4", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), + /* enum E { */ /* [2] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + /* } */ + /* struct A { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* enum E n; */ + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0E\0E0\0E1\0A\0m\0n", + .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "size_check4_map", + .key_size = sizeof(int), + .value_size = 1, + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +/* Test member unexceeds the size of struct + * + * enum E { + * E0, + * E1, + * }; + * + * struct A { + * char m; + * enum E __attribute__((packed)) n; + * }; + */ +{ + .descr = "size check test #5", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), + /* char */ /* [2] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), + /* enum E { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 1), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + /* } */ + /* struct A { */ /* [4] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 2), + BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* char m; */ + BTF_MEMBER_ENC(NAME_TBD, 3, 8),/* enum E __attribute__((packed)) n; */ + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0E\0E0\0E1\0A\0m\0n", + .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "size_check5_map", + .key_size = sizeof(int), + .value_size = 2, + .key_type_id = 1, + .value_type_id = 4, + .max_entries = 4, +}, + +/* typedef const void * const_void_ptr; + * struct A { + * const_void_ptr m; + * }; + */ +{ + .descr = "void test #1", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* const void */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), + /* const void* */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), + /* typedef const void * const_void_ptr */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */ + /* struct A { */ /* [5] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), + /* const_void_ptr m; */ + BTF_MEMBER_ENC(NAME_TBD, 4, 0), + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0const_void_ptr\0A\0m", + .str_sec_size = sizeof("\0const_void_ptr\0A\0m"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "void_test1_map", + .key_size = sizeof(int), + .value_size = sizeof(void *), + .key_type_id = 1, + .value_type_id = 4, + .max_entries = 4, +}, + +/* struct A { + * const void m; + * }; + */ +{ + .descr = "void test #2", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* const void */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), + /* struct A { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 8), + /* const void m; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + /* } */ + BTF_END_RAW, + }, + .str_sec = "\0A\0m", + .str_sec_size = sizeof("\0A\0m"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "void_test2_map", + .key_size = sizeof(int), + .value_size = sizeof(void *), + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member", +}, + +/* typedef const void * const_void_ptr; + * const_void_ptr[4] + */ +{ + .descr = "void test #3", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* const void */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), + /* const void* */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), + /* typedef const void * const_void_ptr */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */ + /* const_void_ptr[4] */ + BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [5] */ + BTF_END_RAW, + }, + .str_sec = "\0const_void_ptr", + .str_sec_size = sizeof("\0const_void_ptr"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "void_test3_map", + .key_size = sizeof(int), + .value_size = sizeof(void *) * 4, + .key_type_id = 1, + .value_type_id = 5, + .max_entries = 4, +}, + +/* const void[4] */ +{ + .descr = "void test #4", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* const void */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), + /* const void[4] */ /* [3] */ + BTF_TYPE_ARRAY_ENC(2, 1, 4), + BTF_END_RAW, + }, + .str_sec = "\0A\0m", + .str_sec_size = sizeof("\0A\0m"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "void_test4_map", + .key_size = sizeof(int), + .value_size = sizeof(void *) * 4, + .key_type_id = 1, + .value_type_id = 3, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid elem", +}, + +/* Array_A <------------------+ + * elem_type == Array_B | + * | | + * | | + * Array_B <-------- + | + * elem_type == Array A --+ + */ +{ + .descr = "loop test #1", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* Array_A */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 1, 8), + /* Array_B */ /* [3] */ + BTF_TYPE_ARRAY_ENC(2, 1, 8), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test1_map", + .key_size = sizeof(int), + .value_size = sizeof(sizeof(int) * 8), + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +/* typedef is _before_ the BTF type of Array_A and Array_B + * + * typedef Array_B int_array; + * + * Array_A <------------------+ + * elem_type == int_array | + * | | + * | | + * Array_B <-------- + | + * elem_type == Array_A --+ + */ +{ + .descr = "loop test #2", + .raw_types = { + /* int */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* typedef Array_B int_array */ + BTF_TYPEDEF_ENC(1, 4), /* [2] */ + /* Array_A */ + BTF_TYPE_ARRAY_ENC(2, 1, 8), /* [3] */ + /* Array_B */ + BTF_TYPE_ARRAY_ENC(3, 1, 8), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "\0int_array\0", + .str_sec_size = sizeof("\0int_array"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test2_map", + .key_size = sizeof(int), + .value_size = sizeof(sizeof(int) * 8), + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +/* Array_A <------------------+ + * elem_type == Array_B | + * | | + * | | + * Array_B <-------- + | + * elem_type == Array_A --+ + */ +{ + .descr = "loop test #3", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* Array_A */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 1, 8), + /* Array_B */ /* [3] */ + BTF_TYPE_ARRAY_ENC(2, 1, 8), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test3_map", + .key_size = sizeof(int), + .value_size = sizeof(sizeof(int) * 8), + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +/* typedef is _between_ the BTF type of Array_A and Array_B + * + * typedef Array_B int_array; + * + * Array_A <------------------+ + * elem_type == int_array | + * | | + * | | + * Array_B <-------- + | + * elem_type == Array_A --+ + */ +{ + .descr = "loop test #4", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* Array_A */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 1, 8), + /* typedef Array_B int_array */ /* [3] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), + /* Array_B */ /* [4] */ + BTF_TYPE_ARRAY_ENC(2, 1, 8), + BTF_END_RAW, + }, + .str_sec = "\0int_array\0", + .str_sec_size = sizeof("\0int_array"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test4_map", + .key_size = sizeof(int), + .value_size = sizeof(sizeof(int) * 8), + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +/* typedef struct B Struct_B + * + * struct A { + * int x; + * Struct_B y; + * }; + * + * struct B { + * int x; + * struct A y; + * }; + */ +{ + .descr = "loop test #5", + .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), 8), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ + BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* Struct_B y; */ + /* typedef struct B Struct_B */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ + /* struct B */ /* [4] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A y; */ + BTF_END_RAW, + }, + .str_sec = "\0A\0x\0y\0Struct_B\0B\0x\0y", + .str_sec_size = sizeof("\0A\0x\0y\0Struct_B\0B\0x\0y"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test5_map", + .key_size = sizeof(int), + .value_size = 8, + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +/* struct A { + * int x; + * struct A array_a[4]; + * }; + */ +{ + .descr = "loop test #6", + .raw_types = { + /* int */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */ + /* struct A */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ + BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A array_a[4]; */ + BTF_END_RAW, + }, + .str_sec = "\0A\0x\0y", + .str_sec_size = sizeof("\0A\0x\0y"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test6_map", + .key_size = sizeof(int), + .value_size = 8, + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +{ + .descr = "loop test #7", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* struct A { */ /* [2] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), + /* const void *m; */ + BTF_MEMBER_ENC(NAME_TBD, 3, 0), + /* CONST type_id=3 */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), + /* PTR type_id=2 */ /* [4] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3), + BTF_END_RAW, + }, + .str_sec = "\0A\0m", + .str_sec_size = sizeof("\0A\0m"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test7_map", + .key_size = sizeof(int), + .value_size = sizeof(void *), + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +{ + .descr = "loop test #8", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* struct A { */ /* [2] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), + /* const void *m; */ + BTF_MEMBER_ENC(NAME_TBD, 4, 0), + /* struct B { */ /* [3] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), + /* const void *n; */ + BTF_MEMBER_ENC(NAME_TBD, 6, 0), + /* CONST type_id=5 */ /* [4] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 5), + /* PTR type_id=6 */ /* [5] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 6), + /* CONST type_id=7 */ /* [6] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 7), + /* PTR type_id=4 */ /* [7] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 4), + BTF_END_RAW, + }, + .str_sec = "\0A\0m\0B\0n", + .str_sec_size = sizeof("\0A\0m\0B\0n"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "loop_test8_map", + .key_size = sizeof(int), + .value_size = sizeof(void *), + .key_type_id = 1, + .value_type_id = 2, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Loop detected", +}, + +{ + .descr = "string section does not end with null", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int") - 1, + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid string section", +}, + +{ + .descr = "empty string section", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = 0, + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid string section", +}, + +{ + .descr = "empty type section", + .raw_types = { + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "No type found", +}, + +{ + .descr = "btf_header test. Longer hdr_len", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .hdr_len_delta = 4, + .err_str = "Unsupported btf_header", +}, + +{ + .descr = "btf_header test. Gap between hdr and type", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .type_off_delta = 4, + .err_str = "Unsupported section found", +}, + +{ + .descr = "btf_header test. Gap between type and str", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .str_off_delta = 4, + .err_str = "Unsupported section found", +}, + +{ + .descr = "btf_header test. Overlap between type and str", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .str_off_delta = -4, + .err_str = "Section overlap found", +}, + +{ + .descr = "btf_header test. Larger BTF size", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .str_len_delta = -4, + .err_str = "Unsupported section found", +}, + +{ + .descr = "btf_header test. Smaller BTF size", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "\0int", + .str_sec_size = sizeof("\0int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "hdr_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .str_len_delta = 4, + .err_str = "Total section length too long", +}, + +{ + .descr = "array test. index_type/elem_type \"int\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(1, 1, 16), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "array test. index_type/elem_type \"const int\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 3, 16), + /* CONST type_id=1 */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "array test. index_type \"const int:31\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int:31 */ /* [2] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4), + /* int[16] */ /* [3] */ + BTF_TYPE_ARRAY_ENC(1, 4, 16), + /* CONST type_id=2 */ /* [4] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid index", +}, + +{ + .descr = "array test. elem_type \"const int:31\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int:31 */ /* [2] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4), + /* int[16] */ /* [3] */ + BTF_TYPE_ARRAY_ENC(4, 1, 16), + /* CONST type_id=2 */ /* [4] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid array of int", +}, + +{ + .descr = "array test. index_type \"void\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(1, 0, 16), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid index", +}, + +{ + .descr = "array test. index_type \"const void\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(1, 3, 16), + /* CONST type_id=0 (void) */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid index", +}, + +{ + .descr = "array test. elem_type \"const void\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 1, 16), + /* CONST type_id=0 (void) */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid elem", +}, + +{ + .descr = "array test. elem_type \"const void *\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* const void *[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 1, 16), + /* CONST type_id=4 */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), + /* void* */ /* [4] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "array test. index_type \"const void *\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* const void *[16] */ /* [2] */ + BTF_TYPE_ARRAY_ENC(3, 3, 16), + /* CONST type_id=4 */ /* [3] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), + /* void* */ /* [4] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid index", +}, + +{ + .descr = "array test. t->size != 0\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* int[16] */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 1), + BTF_ARRAY_ENC(1, 1, 16), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "size != 0", +}, + +{ + .descr = "int test. invalid int_data", + .raw_types = { + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), 4), + 0x10000000, + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid int_data", +}, + +{ + .descr = "invalid BTF_INFO", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_TYPE_ENC(0, 0x10000000, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info", +}, + +{ + .descr = "fwd test. t->type != 0\"", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* fwd type */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 1), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "fwd_test_map", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "type != 0", +}, + +{ + .descr = "typedef (invalid name, name_off = 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPEDEF_ENC(0, 1), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__int", + .str_sec_size = sizeof("\0__int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "typedef_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "typedef (invalid name, invalid identifier)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__!int", + .str_sec_size = sizeof("\0__!int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "typedef_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "ptr type (invalid name, name_off <> 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__int", + .str_sec_size = sizeof("\0__int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "ptr_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "volatile type (invalid name, name_off <> 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 1), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__int", + .str_sec_size = sizeof("\0__int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "volatile_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "const type (invalid name, name_off <> 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__int", + .str_sec_size = sizeof("\0__int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "const_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "restrict type (invalid name, name_off <> 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), 2), /* [3] */ + BTF_END_RAW, + }, + .str_sec = "\0__int", + .str_sec_size = sizeof("\0__int"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "restrict_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "fwd type (invalid name, name_off = 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__skb", + .str_sec_size = sizeof("\0__skb"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "fwd_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "fwd type (invalid name, invalid identifier)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0__!skb", + .str_sec_size = sizeof("\0__!skb"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "fwd_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "array type (invalid name, name_off <> 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), /* [2] */ + BTF_ARRAY_ENC(1, 1, 4), + BTF_END_RAW, + }, + .str_sec = "\0__skb", + .str_sec_size = sizeof("\0__skb"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "struct type (name_off = 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, + BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_END_RAW, + }, + .str_sec = "\0A", + .str_sec_size = sizeof("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "struct type (invalid name, invalid identifier)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_END_RAW, + }, + .str_sec = "\0A!\0B", + .str_sec_size = sizeof("\0A!\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "struct member (name_off = 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, + BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_END_RAW, + }, + .str_sec = "\0A", + .str_sec_size = sizeof("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "struct member (invalid name, invalid identifier)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_END_RAW, + }, + .str_sec = "\0A\0B*", + .str_sec_size = sizeof("\0A\0B*"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "enum type (name_off = 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, + BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), + sizeof(int)), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_END_RAW, + }, + .str_sec = "\0A\0B", + .str_sec_size = sizeof("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "enum_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "enum type (invalid name, invalid identifier)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), + sizeof(int)), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_END_RAW, + }, + .str_sec = "\0A!\0B", + .str_sec_size = sizeof("\0A!\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "enum_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "enum member (invalid name, name_off = 0)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, + BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), + sizeof(int)), /* [2] */ + BTF_ENUM_ENC(0, 0), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "enum_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "enum member (invalid name, invalid identifier)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, + BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), + sizeof(int)), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_END_RAW, + }, + .str_sec = "\0A!", + .str_sec_size = sizeof("\0A!"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "enum_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, +{ + .descr = "arraymap invalid btf key (a bit field)", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* 32 bit int with 32 bit offset */ /* [2] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 32, 32, 8), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_map_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 2, + .value_type_id = 1, + .max_entries = 4, + .map_create_err = true, +}, + +{ + .descr = "arraymap invalid btf key (!= 32 bits)", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* 16 bit int with 0 bit offset */ /* [2] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 16, 2), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_map_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 2, + .value_type_id = 1, + .max_entries = 4, + .map_create_err = true, +}, + +{ + .descr = "arraymap invalid btf value (too small)", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_map_check_btf", + .key_size = sizeof(int), + /* btf_value_size < map->value_size */ + .value_size = sizeof(__u64), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .map_create_err = true, +}, + +{ + .descr = "arraymap invalid btf value (too big)", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_map_check_btf", + .key_size = sizeof(int), + /* btf_value_size > map->value_size */ + .value_size = sizeof(__u16), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .map_create_err = true, +}, + +{ + .descr = "func proto (int (*)(int, unsigned int))", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* int (*)(int, unsigned int) */ + BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func proto (vararg)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int, unsigned int, ...) */ + BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + BTF_FUNC_PROTO_ARG_ENC(0, 0), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func proto (vararg with name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int b, ... c) */ + BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 0), + BTF_END_RAW, + }, + .str_sec = "\0a\0b\0c", + .str_sec_size = sizeof("\0a\0b\0c"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid arg#3", +}, + +{ + .descr = "func proto (arg after vararg)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, ..., unsigned int b) */ + BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 0), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_END_RAW, + }, + .str_sec = "\0a\0b", + .str_sec_size = sizeof("\0a\0b"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid arg#2", +}, + +{ + .descr = "func proto (CONST=>TYPEDEF=>PTR=>FUNC_PROTO)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* typedef void (*func_ptr)(int, unsigned int) */ + BTF_TYPEDEF_ENC(NAME_TBD, 5), /* [3] */ + /* const func_ptr */ + BTF_CONST_ENC(3), /* [4] */ + BTF_PTR_ENC(6), /* [5] */ + BTF_FUNC_PROTO_ENC(0, 2), /* [6] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + BTF_END_RAW, + }, + .str_sec = "\0func_ptr", + .str_sec_size = sizeof("\0func_ptr"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func proto (TYPEDEF=>FUNC_PROTO)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ + BTF_FUNC_PROTO_ENC(0, 2), /* [4] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + BTF_END_RAW, + }, + .str_sec = "\0func_typedef", + .str_sec_size = sizeof("\0func_typedef"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func proto (btf_resolve(arg))", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* void (*)(const void *) */ + BTF_FUNC_PROTO_ENC(0, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(0, 3), + BTF_CONST_ENC(4), /* [3] */ + BTF_PTR_ENC(0), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func proto (Not all arg has name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int, unsigned int b) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_END_RAW, + }, + .str_sec = "\0b", + .str_sec_size = sizeof("\0b"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func proto (Bad arg name_off)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int <bad_name_off>) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(0x0fffffff, 2), + BTF_END_RAW, + }, + .str_sec = "\0a", + .str_sec_size = sizeof("\0a"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid arg#2", +}, + +{ + .descr = "func proto (Bad arg name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int !!!) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_END_RAW, + }, + .str_sec = "\0a\0!!!", + .str_sec_size = sizeof("\0a\0!!!"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid arg#2", +}, + +{ + .descr = "func proto (Invalid return type)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* <bad_ret_type> (*)(int, unsigned int) */ + BTF_FUNC_PROTO_ENC(100, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid return type", +}, + +{ + .descr = "func proto (with func name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void func_proto(int, unsigned int) */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 2), 0), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(0, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + BTF_END_RAW, + }, + .str_sec = "\0func_proto", + .str_sec_size = sizeof("\0func_proto"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "func proto (const void arg)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(const void) */ + BTF_FUNC_PROTO_ENC(0, 1), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(0, 4), + BTF_CONST_ENC(0), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid arg#1", +}, + +{ + .descr = "func (void func(int a, unsigned int b))", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int b) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + /* void func(int a, unsigned int b) */ + BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "\0a\0b\0func", + .str_sec_size = sizeof("\0a\0b\0func"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "func (No func name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int b) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + /* void <no_name>(int a, unsigned int b) */ + BTF_FUNC_ENC(0, 3), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "\0a\0b", + .str_sec_size = sizeof("\0a\0b"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "func (Invalid func name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int b) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + /* void !!!(int a, unsigned int b) */ + BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "\0a\0b\0!!!", + .str_sec_size = sizeof("\0a\0b\0!!!"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid name", +}, + +{ + .descr = "func (Some arg has no name)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(0, 2), + /* void func(int a, unsigned int) */ + BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "\0a\0func", + .str_sec_size = sizeof("\0a\0func"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid arg#2", +}, + +{ + .descr = "func (Non zero vlen)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ + /* void (*)(int a, unsigned int b) */ + BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + /* void func(int a, unsigned int b) */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 2), 3), /* [4] */ + BTF_END_RAW, + }, + .str_sec = "\0a\0b\0func", + .str_sec_size = sizeof("\0a\0b\0func"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid func linkage", +}, + +{ + .descr = "func (Not referring to FUNC_PROTO)", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_ENC(NAME_TBD, 1), /* [2] */ + BTF_END_RAW, + }, + .str_sec = "\0func", + .str_sec_size = sizeof("\0func"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid type_id", +}, + +{ + .descr = "invalid int kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 1, 0), 4), /* [2] */ + BTF_INT_ENC(0, 0, 32), + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "int_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid ptr kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "ptr_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid array kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 1, 0), 0), /* [2] */ + BTF_ARRAY_ENC(1, 1, 1), + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid enum kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 1, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "enum_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "valid fwd kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "fwd_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "invalid typedef kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_TYPEDEF, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "typedef_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid volatile kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "volatile_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid const kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "const_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid restrict kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "restrict_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid func kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 0), 0), /* [2] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 1, 0), 2), /* [3] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid func_proto kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 1, 0), 0), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "valid struct, kind_flag, bitfield_size = 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 8), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 32)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid struct, kind_flag, int member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 4)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid union, kind_flag, int member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid struct, kind_flag, enum member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 4)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid union, kind_flag, enum member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid struct, kind_flag, typedef member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 4)), + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C\0D\0E"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid union, kind_flag, typedef member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 0)), + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C\0D\0E"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "invalid struct, kind_flag, bitfield_size greater than struct size", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 20)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +{ + .descr = "invalid struct, kind_flag, bitfield base_type int not regular", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 20, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 20)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member base type", +}, + +{ + .descr = "invalid struct, kind_flag, base_type int not regular", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 12, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 8)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member base type", +}, + +{ + .descr = "invalid union, kind_flag, bitfield_size greater than struct size", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 2), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(8, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +{ + .descr = "invalid struct, kind_flag, int member, bitfield_size = 0, wrong byte alignment", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member offset", +}, + +{ + .descr = "invalid struct, kind_flag, enum member, bitfield_size = 0, wrong byte alignment", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member offset", +}, + +{ + .descr = "128-bit int", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "int_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "struct, 128-bit int member", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "struct, 120-bit int member bitfield", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 120, 16), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "struct, kind_flag, 128-bit int member", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "struct, kind_flag, 120-bit int member bitfield", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(120, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, +/* + * typedef int arr_t[16]; + * struct s { + * arr_t *a; + * }; + */ +{ + .descr = "struct->ptr->typedef->array->int size resolution", + .raw_types = { + BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + BTF_PTR_ENC(3), /* [2] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ + BTF_TYPE_ARRAY_ENC(5, 5, 16), /* [4] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0s\0a\0arr_t"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "ptr_mod_chain_size_resolve_map", + .key_size = sizeof(int), + .value_size = sizeof(int) * 16, + .key_type_id = 5 /* int */, + .value_type_id = 3 /* arr_t */, + .max_entries = 4, +}, +/* + * typedef int arr_t[16][8][4]; + * struct s { + * arr_t *a; + * }; + */ +{ + .descr = "struct->ptr->typedef->multi-array->int size resolution", + .raw_types = { + BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + BTF_PTR_ENC(3), /* [2] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ + BTF_TYPE_ARRAY_ENC(5, 7, 16), /* [4] */ + BTF_TYPE_ARRAY_ENC(6, 7, 8), /* [5] */ + BTF_TYPE_ARRAY_ENC(7, 7, 4), /* [6] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [7] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0s\0a\0arr_t"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "multi_arr_size_resolve_map", + .key_size = sizeof(int), + .value_size = sizeof(int) * 16 * 8 * 4, + .key_type_id = 7 /* int */, + .value_type_id = 3 /* arr_t */, + .max_entries = 4, +}, +/* + * typedef int int_t; + * typedef int_t arr3_t[4]; + * typedef arr3_t arr2_t[8]; + * typedef arr2_t arr1_t[16]; + * struct s { + * arr1_t *a; + * }; + */ +{ + .descr = "typedef/multi-arr mix size resolution", + .raw_types = { + BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + BTF_PTR_ENC(3), /* [2] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ + BTF_TYPE_ARRAY_ENC(5, 10, 16), /* [4] */ + BTF_TYPEDEF_ENC(NAME_TBD, 6), /* [5] */ + BTF_TYPE_ARRAY_ENC(7, 10, 8), /* [6] */ + BTF_TYPEDEF_ENC(NAME_TBD, 8), /* [7] */ + BTF_TYPE_ARRAY_ENC(9, 10, 4), /* [8] */ + BTF_TYPEDEF_ENC(NAME_TBD, 10), /* [9] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [10] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0s\0a\0arr1_t\0arr2_t\0arr3_t\0int_t"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "typedef_arra_mix_size_resolve_map", + .key_size = sizeof(int), + .value_size = sizeof(int) * 16 * 8 * 4, + .key_type_id = 10 /* int */, + .value_type_id = 3 /* arr_t */, + .max_entries = 4, +}, + +}; /* struct btf_raw_test raw_tests[] */ + +static const char *get_next_str(const char *start, const char *end) +{ + return start < end - 1 ? start + 1 : NULL; +} + +static int get_raw_sec_size(const __u32 *raw_types) +{ + int i; + + for (i = MAX_NR_RAW_U32 - 1; + i >= 0 && raw_types[i] != BTF_END_RAW; + i--) + ; + + return i < 0 ? i : i * sizeof(raw_types[0]); +} + +static void *btf_raw_create(const struct btf_header *hdr, + const __u32 *raw_types, + const char *str, + unsigned int str_sec_size, + unsigned int *btf_size, + const char **ret_next_str) +{ + const char *next_str = str, *end_str = str + str_sec_size; + const char **strs_idx = NULL, **tmp_strs_idx; + int strs_cap = 0, strs_cnt = 0, next_str_idx = 0; + unsigned int size_needed, offset; + struct btf_header *ret_hdr; + int i, type_sec_size, err = 0; + uint32_t *ret_types; + void *raw_btf = NULL; + + type_sec_size = get_raw_sec_size(raw_types); + if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types")) + return NULL; + + size_needed = sizeof(*hdr) + type_sec_size + str_sec_size; + raw_btf = malloc(size_needed); + if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf")) + return NULL; + + /* Copy header */ + memcpy(raw_btf, hdr, sizeof(*hdr)); + offset = sizeof(*hdr); + + /* Index strings */ + while ((next_str = get_next_str(next_str, end_str))) { + if (strs_cnt == strs_cap) { + strs_cap += max(16, strs_cap / 2); + tmp_strs_idx = realloc(strs_idx, + sizeof(*strs_idx) * strs_cap); + if (CHECK(!tmp_strs_idx, + "Cannot allocate memory for strs_idx")) { + err = -1; + goto done; + } + strs_idx = tmp_strs_idx; + } + strs_idx[strs_cnt++] = next_str; + next_str += strlen(next_str); + } + + /* Copy type section */ + ret_types = raw_btf + offset; + for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) { + if (raw_types[i] == NAME_TBD) { + if (CHECK(next_str_idx == strs_cnt, + "Error in getting next_str #%d", + next_str_idx)) { + err = -1; + goto done; + } + ret_types[i] = strs_idx[next_str_idx++] - str; + } else if (IS_NAME_NTH(raw_types[i])) { + int idx = GET_NAME_NTH_IDX(raw_types[i]); + + if (CHECK(idx <= 0 || idx > strs_cnt, + "Error getting string #%d, strs_cnt:%d", + idx, strs_cnt)) { + err = -1; + goto done; + } + ret_types[i] = strs_idx[idx-1] - str; + } else { + ret_types[i] = raw_types[i]; + } + } + offset += type_sec_size; + + /* Copy string section */ + memcpy(raw_btf + offset, str, str_sec_size); + + ret_hdr = (struct btf_header *)raw_btf; + ret_hdr->type_len = type_sec_size; + ret_hdr->str_off = type_sec_size; + ret_hdr->str_len = str_sec_size; + + *btf_size = size_needed; + if (ret_next_str) + *ret_next_str = + next_str_idx < strs_cnt ? strs_idx[next_str_idx] : NULL; + +done: + if (err) { + if (raw_btf) + free(raw_btf); + if (strs_idx) + free(strs_idx); + return NULL; + } + return raw_btf; +} + +static void do_test_raw(unsigned int test_num) +{ + struct btf_raw_test *test = &raw_tests[test_num - 1]; + struct bpf_create_map_attr create_attr = {}; + int map_fd = -1, btf_fd = -1; + unsigned int raw_btf_size; + struct btf_header *hdr; + void *raw_btf; + int err; + + if (!test__start_subtest(test->descr)) + return; + + raw_btf = btf_raw_create(&hdr_tmpl, + test->raw_types, + test->str_sec, + test->str_sec_size, + &raw_btf_size, NULL); + if (!raw_btf) + return; + + hdr = raw_btf; + + hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta; + hdr->type_off = (int)hdr->type_off + test->type_off_delta; + hdr->str_off = (int)hdr->str_off + test->str_off_delta; + hdr->str_len = (int)hdr->str_len + test->str_len_delta; + + *btf_log_buf = '\0'; + btf_fd = bpf_load_btf(raw_btf, raw_btf_size, + btf_log_buf, BTF_LOG_BUF_SIZE, + always_log); + free(raw_btf); + + err = ((btf_fd == -1) != test->btf_load_err); + if (CHECK(err, "btf_fd:%d test->btf_load_err:%u", + btf_fd, test->btf_load_err) || + CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), + "expected err_str:%s", test->err_str)) { + err = -1; + goto done; + } + + if (err || btf_fd == -1) + goto done; + + create_attr.name = test->map_name; + create_attr.map_type = test->map_type; + create_attr.key_size = test->key_size; + create_attr.value_size = test->value_size; + create_attr.max_entries = test->max_entries; + create_attr.btf_fd = btf_fd; + create_attr.btf_key_type_id = test->key_type_id; + create_attr.btf_value_type_id = test->value_type_id; + + map_fd = bpf_create_map_xattr(&create_attr); + + err = ((map_fd == -1) != test->map_create_err); + CHECK(err, "map_fd:%d test->map_create_err:%u", + map_fd, test->map_create_err); + +done: + if (*btf_log_buf && (err || always_log)) + fprintf(stderr, "\n%s", btf_log_buf); + if (btf_fd != -1) + close(btf_fd); + if (map_fd != -1) + close(map_fd); +} + +struct btf_get_info_test { + const char *descr; + const char *str_sec; + __u32 raw_types[MAX_NR_RAW_U32]; + __u32 str_sec_size; + int btf_size_delta; + int (*special_test)(unsigned int test_num); +}; + +static int test_big_btf_info(unsigned int test_num); +static int test_btf_id(unsigned int test_num); + +const struct btf_get_info_test get_info_tests[] = { +{ + .descr = "== raw_btf_size+1", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .btf_size_delta = 1, +}, +{ + .descr = "== raw_btf_size-3", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .btf_size_delta = -3, +}, +{ + .descr = "Large bpf_btf_info", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .special_test = test_big_btf_info, +}, +{ + .descr = "BTF ID", + .raw_types = { + /* int */ /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), + /* unsigned int */ /* [2] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), + BTF_END_RAW, + }, + .str_sec = "", + .str_sec_size = sizeof(""), + .special_test = test_btf_id, +}, +}; + +static int test_big_btf_info(unsigned int test_num) +{ + const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; + uint8_t *raw_btf = NULL, *user_btf = NULL; + unsigned int raw_btf_size; + struct { + struct bpf_btf_info info; + uint64_t garbage; + } info_garbage; + struct bpf_btf_info *info; + int btf_fd = -1, err; + uint32_t info_len; + + raw_btf = btf_raw_create(&hdr_tmpl, + test->raw_types, + test->str_sec, + test->str_sec_size, + &raw_btf_size, NULL); + + if (!raw_btf) + return -1; + + *btf_log_buf = '\0'; + + user_btf = malloc(raw_btf_size); + if (CHECK(!user_btf, "!user_btf")) { + err = -1; + goto done; + } + + btf_fd = bpf_load_btf(raw_btf, raw_btf_size, + btf_log_buf, BTF_LOG_BUF_SIZE, + always_log); + if (CHECK(btf_fd == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + /* + * GET_INFO should error out if the userspace info + * has non zero tailing bytes. + */ + info = &info_garbage.info; + memset(info, 0, sizeof(*info)); + info_garbage.garbage = 0xdeadbeef; + info_len = sizeof(info_garbage); + info->btf = ptr_to_u64(user_btf); + info->btf_size = raw_btf_size; + + err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len); + if (CHECK(!err, "!err")) { + err = -1; + goto done; + } + + /* + * GET_INFO should succeed even info_len is larger than + * the kernel supported as long as tailing bytes are zero. + * The kernel supported info len should also be returned + * to userspace. + */ + info_garbage.garbage = 0; + err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len); + if (CHECK(err || info_len != sizeof(*info), + "err:%d errno:%d info_len:%u sizeof(*info):%zu", + err, errno, info_len, sizeof(*info))) { + err = -1; + goto done; + } + + fprintf(stderr, "OK"); + +done: + if (*btf_log_buf && (err || always_log)) + fprintf(stderr, "\n%s", btf_log_buf); + + free(raw_btf); + free(user_btf); + + if (btf_fd != -1) + close(btf_fd); + + return err; +} + +static int test_btf_id(unsigned int test_num) +{ + const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; + struct bpf_create_map_attr create_attr = {}; + uint8_t *raw_btf = NULL, *user_btf[2] = {}; + int btf_fd[2] = {-1, -1}, map_fd = -1; + struct bpf_map_info map_info = {}; + struct bpf_btf_info info[2] = {}; + unsigned int raw_btf_size; + uint32_t info_len; + int err, i, ret; + + raw_btf = btf_raw_create(&hdr_tmpl, + test->raw_types, + test->str_sec, + test->str_sec_size, + &raw_btf_size, NULL); + + if (!raw_btf) + return -1; + + *btf_log_buf = '\0'; + + for (i = 0; i < 2; i++) { + user_btf[i] = malloc(raw_btf_size); + if (CHECK(!user_btf[i], "!user_btf[%d]", i)) { + err = -1; + goto done; + } + info[i].btf = ptr_to_u64(user_btf[i]); + info[i].btf_size = raw_btf_size; + } + + btf_fd[0] = bpf_load_btf(raw_btf, raw_btf_size, + btf_log_buf, BTF_LOG_BUF_SIZE, + always_log); + if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */ + info_len = sizeof(info[0]); + err = bpf_obj_get_info_by_fd(btf_fd[0], &info[0], &info_len); + if (CHECK(err, "errno:%d", errno)) { + err = -1; + goto done; + } + + btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id); + if (CHECK(btf_fd[1] == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + ret = 0; + err = bpf_obj_get_info_by_fd(btf_fd[1], &info[1], &info_len); + if (CHECK(err || info[0].id != info[1].id || + info[0].btf_size != info[1].btf_size || + (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)), + "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d", + err, errno, info[0].id, info[1].id, + info[0].btf_size, info[1].btf_size, ret)) { + err = -1; + goto done; + } + + /* Test btf members in struct bpf_map_info */ + create_attr.name = "test_btf_id"; + create_attr.map_type = BPF_MAP_TYPE_ARRAY; + create_attr.key_size = sizeof(int); + create_attr.value_size = sizeof(unsigned int); + create_attr.max_entries = 4; + create_attr.btf_fd = btf_fd[0]; + create_attr.btf_key_type_id = 1; + create_attr.btf_value_type_id = 2; + + map_fd = bpf_create_map_xattr(&create_attr); + if (CHECK(map_fd == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + info_len = sizeof(map_info); + err = bpf_obj_get_info_by_fd(map_fd, &map_info, &info_len); + if (CHECK(err || map_info.btf_id != info[0].id || + map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2, + "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u", + err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id, + map_info.btf_value_type_id)) { + err = -1; + goto done; + } + + for (i = 0; i < 2; i++) { + close(btf_fd[i]); + btf_fd[i] = -1; + } + + /* Test BTF ID is removed from the kernel */ + btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); + if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + close(btf_fd[0]); + btf_fd[0] = -1; + + /* The map holds the last ref to BTF and its btf_id */ + close(map_fd); + map_fd = -1; + btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); + if (CHECK(btf_fd[0] != -1, "BTF lingers")) { + err = -1; + goto done; + } + + fprintf(stderr, "OK"); + +done: + if (*btf_log_buf && (err || always_log)) + fprintf(stderr, "\n%s", btf_log_buf); + + free(raw_btf); + if (map_fd != -1) + close(map_fd); + for (i = 0; i < 2; i++) { + free(user_btf[i]); + if (btf_fd[i] != -1) + close(btf_fd[i]); + } + + return err; +} + +static void do_test_get_info(unsigned int test_num) +{ + const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; + unsigned int raw_btf_size, user_btf_size, expected_nbytes; + uint8_t *raw_btf = NULL, *user_btf = NULL; + struct bpf_btf_info info = {}; + int btf_fd = -1, err, ret; + uint32_t info_len; + + if (!test__start_subtest(test->descr)) + return; + + if (test->special_test) { + err = test->special_test(test_num); + if (CHECK(err, "failed: %d\n", err)) + return; + } + + raw_btf = btf_raw_create(&hdr_tmpl, + test->raw_types, + test->str_sec, + test->str_sec_size, + &raw_btf_size, NULL); + + if (!raw_btf) + return; + + *btf_log_buf = '\0'; + + user_btf = malloc(raw_btf_size); + if (CHECK(!user_btf, "!user_btf")) { + err = -1; + goto done; + } + + btf_fd = bpf_load_btf(raw_btf, raw_btf_size, + btf_log_buf, BTF_LOG_BUF_SIZE, + always_log); + if (CHECK(btf_fd == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + user_btf_size = (int)raw_btf_size + test->btf_size_delta; + expected_nbytes = min(raw_btf_size, user_btf_size); + if (raw_btf_size > expected_nbytes) + memset(user_btf + expected_nbytes, 0xff, + raw_btf_size - expected_nbytes); + + info_len = sizeof(info); + info.btf = ptr_to_u64(user_btf); + info.btf_size = user_btf_size; + + ret = 0; + err = bpf_obj_get_info_by_fd(btf_fd, &info, &info_len); + if (CHECK(err || !info.id || info_len != sizeof(info) || + info.btf_size != raw_btf_size || + (ret = memcmp(raw_btf, user_btf, expected_nbytes)), + "err:%d errno:%d info.id:%u info_len:%u sizeof(info):%zu raw_btf_size:%u info.btf_size:%u expected_nbytes:%u memcmp:%d", + err, errno, info.id, info_len, sizeof(info), + raw_btf_size, info.btf_size, expected_nbytes, ret)) { + err = -1; + goto done; + } + + while (expected_nbytes < raw_btf_size) { + fprintf(stderr, "%u...", expected_nbytes); + if (CHECK(user_btf[expected_nbytes++] != 0xff, + "user_btf[%u]:%x != 0xff", expected_nbytes - 1, + user_btf[expected_nbytes - 1])) { + err = -1; + goto done; + } + } + + fprintf(stderr, "OK"); + +done: + if (*btf_log_buf && (err || always_log)) + fprintf(stderr, "\n%s", btf_log_buf); + + free(raw_btf); + free(user_btf); + + if (btf_fd != -1) + close(btf_fd); +} + +struct btf_file_test { + const char *file; + bool btf_kv_notfound; +}; + +static struct btf_file_test file_tests[] = { + { .file = "test_btf_haskv.o", }, + { .file = "test_btf_newkv.o", }, + { .file = "test_btf_nokv.o", .btf_kv_notfound = true, }, +}; + +static void do_test_file(unsigned int test_num) +{ + const struct btf_file_test *test = &file_tests[test_num - 1]; + const char *expected_fnames[] = {"_dummy_tracepoint", + "test_long_fname_1", + "test_long_fname_2"}; + struct btf_ext *btf_ext = NULL; + struct bpf_prog_info info = {}; + struct bpf_object *obj = NULL; + struct bpf_func_info *finfo; + struct bpf_program *prog; + __u32 info_len, rec_size; + bool has_btf_ext = false; + struct btf *btf = NULL; + void *func_info = NULL; + struct bpf_map *map; + int i, err, prog_fd; + + if (!test__start_subtest(test->file)) + return; + + btf = btf__parse_elf(test->file, &btf_ext); + if (IS_ERR(btf)) { + if (PTR_ERR(btf) == -ENOENT) { + printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC); + test__skip(); + return; + } + return; + } + btf__free(btf); + + has_btf_ext = btf_ext != NULL; + btf_ext__free(btf_ext); + + obj = bpf_object__open(test->file); + if (CHECK(IS_ERR(obj), "obj: %ld", PTR_ERR(obj))) + return; + + prog = bpf_program__next(NULL, obj); + if (CHECK(!prog, "Cannot find bpf_prog")) { + err = -1; + goto done; + } + + bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT); + err = bpf_object__load(obj); + if (CHECK(err < 0, "bpf_object__load: %d", err)) + goto done; + prog_fd = bpf_program__fd(prog); + + map = bpf_object__find_map_by_name(obj, "btf_map"); + if (CHECK(!map, "btf_map not found")) { + err = -1; + goto done; + } + + err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0) + != test->btf_kv_notfound; + if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u", + bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map), + test->btf_kv_notfound)) + goto done; + + if (!has_btf_ext) + goto skip; + + /* get necessary program info */ + info_len = sizeof(struct bpf_prog_info); + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); + + if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) { + fprintf(stderr, "%s\n", btf_log_buf); + err = -1; + goto done; + } + if (CHECK(info.nr_func_info != 3, + "incorrect info.nr_func_info (1st) %d", + info.nr_func_info)) { + err = -1; + goto done; + } + rec_size = info.func_info_rec_size; + if (CHECK(rec_size != sizeof(struct bpf_func_info), + "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) { + err = -1; + goto done; + } + + func_info = malloc(info.nr_func_info * rec_size); + if (CHECK(!func_info, "out of memory")) { + err = -1; + goto done; + } + + /* reset info to only retrieve func_info related data */ + memset(&info, 0, sizeof(info)); + info.nr_func_info = 3; + info.func_info_rec_size = rec_size; + info.func_info = ptr_to_u64(func_info); + + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); + + if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) { + fprintf(stderr, "%s\n", btf_log_buf); + err = -1; + goto done; + } + if (CHECK(info.nr_func_info != 3, + "incorrect info.nr_func_info (2nd) %d", + info.nr_func_info)) { + err = -1; + goto done; + } + if (CHECK(info.func_info_rec_size != rec_size, + "incorrect info.func_info_rec_size (2nd) %d", + info.func_info_rec_size)) { + err = -1; + goto done; + } + + err = btf__get_from_id(info.btf_id, &btf); + if (CHECK(err, "cannot get btf from kernel, err: %d", err)) + goto done; + + /* check three functions */ + finfo = func_info; + for (i = 0; i < 3; i++) { + const struct btf_type *t; + const char *fname; + + t = btf__type_by_id(btf, finfo->type_id); + if (CHECK(!t, "btf__type_by_id failure: id %u", + finfo->type_id)) { + err = -1; + goto done; + } + + fname = btf__name_by_offset(btf, t->name_off); + err = strcmp(fname, expected_fnames[i]); + /* for the second and third functions in .text section, + * the compiler may order them either way. + */ + if (i && err) + err = strcmp(fname, expected_fnames[3 - i]); + if (CHECK(err, "incorrect fname %s", fname ? : "")) { + err = -1; + goto done; + } + + finfo = (void *)finfo + rec_size; + } + +skip: + fprintf(stderr, "OK"); + +done: + free(func_info); + bpf_object__close(obj); +} + +const char *pprint_enum_str[] = { + "ENUM_ZERO", + "ENUM_ONE", + "ENUM_TWO", + "ENUM_THREE", +}; + +struct pprint_mapv { + uint32_t ui32; + uint16_t ui16; + /* 2 bytes hole */ + int32_t si32; + uint32_t unused_bits2a:2, + bits28:28, + unused_bits2b:2; + union { + uint64_t ui64; + uint8_t ui8a[8]; + }; + enum { + ENUM_ZERO, + ENUM_ONE, + ENUM_TWO, + ENUM_THREE, + } aenum; + uint32_t ui32b; + uint32_t bits2c:2; + uint8_t si8_4[2][2]; +}; + +#ifdef __SIZEOF_INT128__ +struct pprint_mapv_int128 { + __int128 si128a; + __int128 si128b; + unsigned __int128 bits3:3; + unsigned __int128 bits80:80; + unsigned __int128 ui128; +}; +#endif + +static struct btf_raw_test pprint_test_template[] = { +{ + .raw_types = { + /* unsighed char */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), + /* unsigned short */ /* [2] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), + /* unsigned int */ /* [3] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), + /* int */ /* [4] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + /* unsigned long long */ /* [5] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), + /* 2 bits */ /* [6] */ + BTF_TYPE_INT_ENC(0, 0, 0, 2, 2), + /* 28 bits */ /* [7] */ + BTF_TYPE_INT_ENC(0, 0, 0, 28, 4), + /* uint8_t[8] */ /* [8] */ + BTF_TYPE_ARRAY_ENC(9, 1, 8), + /* typedef unsigned char uint8_t */ /* [9] */ + BTF_TYPEDEF_ENC(NAME_TBD, 1), + /* typedef unsigned short uint16_t */ /* [10] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), + /* typedef unsigned int uint32_t */ /* [11] */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), + /* typedef int int32_t */ /* [12] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), + /* typedef unsigned long long uint64_t *//* [13] */ + BTF_TYPEDEF_ENC(NAME_TBD, 5), + /* union (anon) */ /* [14] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ + BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ + /* enum (anon) */ /* [15] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_ENUM_ENC(NAME_TBD, 2), + BTF_ENUM_ENC(NAME_TBD, 3), + /* struct pprint_mapv */ /* [16] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 11), 40), + BTF_MEMBER_ENC(NAME_TBD, 11, 0), /* uint32_t ui32 */ + BTF_MEMBER_ENC(NAME_TBD, 10, 32), /* uint16_t ui16 */ + BTF_MEMBER_ENC(NAME_TBD, 12, 64), /* int32_t si32 */ + BTF_MEMBER_ENC(NAME_TBD, 6, 96), /* unused_bits2a */ + BTF_MEMBER_ENC(NAME_TBD, 7, 98), /* bits28 */ + BTF_MEMBER_ENC(NAME_TBD, 6, 126), /* unused_bits2b */ + BTF_MEMBER_ENC(0, 14, 128), /* union (anon) */ + BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */ + BTF_MEMBER_ENC(NAME_TBD, 11, 224), /* uint32_t ui32b */ + BTF_MEMBER_ENC(NAME_TBD, 6, 256), /* bits2c */ + BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ + BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ + BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0si8_4"), + .key_size = sizeof(unsigned int), + .value_size = sizeof(struct pprint_mapv), + .key_type_id = 3, /* unsigned int */ + .value_type_id = 16, /* struct pprint_mapv */ + .max_entries = 128, +}, + +{ + /* this type will have the same type as the + * first .raw_types definition, but struct type will + * be encoded with kind_flag set. + */ + .raw_types = { + /* unsighed char */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), + /* unsigned short */ /* [2] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), + /* unsigned int */ /* [3] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), + /* int */ /* [4] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + /* unsigned long long */ /* [5] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ + /* uint8_t[8] */ /* [8] */ + BTF_TYPE_ARRAY_ENC(9, 1, 8), + /* typedef unsigned char uint8_t */ /* [9] */ + BTF_TYPEDEF_ENC(NAME_TBD, 1), + /* typedef unsigned short uint16_t */ /* [10] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), + /* typedef unsigned int uint32_t */ /* [11] */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), + /* typedef int int32_t */ /* [12] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), + /* typedef unsigned long long uint64_t *//* [13] */ + BTF_TYPEDEF_ENC(NAME_TBD, 5), + /* union (anon) */ /* [14] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ + BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ + /* enum (anon) */ /* [15] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_ENUM_ENC(NAME_TBD, 2), + BTF_ENUM_ENC(NAME_TBD, 3), + /* struct pprint_mapv */ /* [16] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), + BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ + BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ + BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ + BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ + BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ + BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)), /* unused_bits2b */ + BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ + BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ + BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ + BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ + BTF_MEMBER_ENC(NAME_TBD, 17, 264), /* si8_4 */ + BTF_TYPE_ARRAY_ENC(18, 1, 2), /* [17] */ + BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [18] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0si8_4"), + .key_size = sizeof(unsigned int), + .value_size = sizeof(struct pprint_mapv), + .key_type_id = 3, /* unsigned int */ + .value_type_id = 16, /* struct pprint_mapv */ + .max_entries = 128, +}, + +{ + /* this type will have the same layout as the + * first .raw_types definition. The struct type will + * be encoded with kind_flag set, bitfield members + * are added typedef/const/volatile, and bitfield members + * will have both int and enum types. + */ + .raw_types = { + /* unsighed char */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), + /* unsigned short */ /* [2] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), + /* unsigned int */ /* [3] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), + /* int */ /* [4] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + /* unsigned long long */ /* [5] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ + /* uint8_t[8] */ /* [8] */ + BTF_TYPE_ARRAY_ENC(9, 1, 8), + /* typedef unsigned char uint8_t */ /* [9] */ + BTF_TYPEDEF_ENC(NAME_TBD, 1), + /* typedef unsigned short uint16_t */ /* [10] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), + /* typedef unsigned int uint32_t */ /* [11] */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), + /* typedef int int32_t */ /* [12] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), + /* typedef unsigned long long uint64_t *//* [13] */ + BTF_TYPEDEF_ENC(NAME_TBD, 5), + /* union (anon) */ /* [14] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ + BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ + /* enum (anon) */ /* [15] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_ENUM_ENC(NAME_TBD, 2), + BTF_ENUM_ENC(NAME_TBD, 3), + /* struct pprint_mapv */ /* [16] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40), + BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ + BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ + BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ + BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ + BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ + BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */ + BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ + BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ + BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ + BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ + BTF_MEMBER_ENC(NAME_TBD, 20, BTF_MEMBER_OFFSET(0, 264)), /* si8_4 */ + /* typedef unsigned int ___int */ /* [17] */ + BTF_TYPEDEF_ENC(NAME_TBD, 18), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6), /* [18] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15), /* [19] */ + BTF_TYPE_ARRAY_ENC(21, 1, 2), /* [20] */ + BTF_TYPE_ARRAY_ENC(1, 1, 2), /* [21] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0___int\0si8_4"), + .key_size = sizeof(unsigned int), + .value_size = sizeof(struct pprint_mapv), + .key_type_id = 3, /* unsigned int */ + .value_type_id = 16, /* struct pprint_mapv */ + .max_entries = 128, +}, + +#ifdef __SIZEOF_INT128__ +{ + /* test int128 */ + .raw_types = { + /* unsigned int */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), + /* __int128 */ /* [2] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 128, 16), + /* unsigned __int128 */ /* [3] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 128, 16), + /* struct pprint_mapv_int128 */ /* [4] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 5), 64), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), /* si128a */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 128)), /* si128b */ + BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(3, 256)), /* bits3 */ + BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(80, 259)), /* bits80 */ + BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(0, 384)), /* ui128 */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0unsigned int\0__int128\0unsigned __int128\0pprint_mapv_int128\0si128a\0si128b\0bits3\0bits80\0ui128"), + .key_size = sizeof(unsigned int), + .value_size = sizeof(struct pprint_mapv_int128), + .key_type_id = 1, + .value_type_id = 4, + .max_entries = 128, + .mapv_kind = PPRINT_MAPV_KIND_INT128, +}, +#endif + +}; + +static struct btf_pprint_test_meta { + const char *descr; + enum bpf_map_type map_type; + const char *map_name; + bool ordered_map; + bool lossless_map; + bool percpu_map; +} pprint_tests_meta[] = { +{ + .descr = "BTF pretty print array", + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "pprint_test_array", + .ordered_map = true, + .lossless_map = true, + .percpu_map = false, +}, + +{ + .descr = "BTF pretty print hash", + .map_type = BPF_MAP_TYPE_HASH, + .map_name = "pprint_test_hash", + .ordered_map = false, + .lossless_map = true, + .percpu_map = false, +}, + +{ + .descr = "BTF pretty print lru hash", + .map_type = BPF_MAP_TYPE_LRU_HASH, + .map_name = "pprint_test_lru_hash", + .ordered_map = false, + .lossless_map = false, + .percpu_map = false, +}, + +{ + .descr = "BTF pretty print percpu array", + .map_type = BPF_MAP_TYPE_PERCPU_ARRAY, + .map_name = "pprint_test_percpu_array", + .ordered_map = true, + .lossless_map = true, + .percpu_map = true, +}, + +{ + .descr = "BTF pretty print percpu hash", + .map_type = BPF_MAP_TYPE_PERCPU_HASH, + .map_name = "pprint_test_percpu_hash", + .ordered_map = false, + .lossless_map = true, + .percpu_map = true, +}, + +{ + .descr = "BTF pretty print lru percpu hash", + .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH, + .map_name = "pprint_test_lru_percpu_hash", + .ordered_map = false, + .lossless_map = false, + .percpu_map = true, +}, + +}; + +static size_t get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind) +{ + if (mapv_kind == PPRINT_MAPV_KIND_BASIC) + return sizeof(struct pprint_mapv); + +#ifdef __SIZEOF_INT128__ + if (mapv_kind == PPRINT_MAPV_KIND_INT128) + return sizeof(struct pprint_mapv_int128); +#endif + + assert(0); +} + +static void set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind, + void *mapv, uint32_t i, + int num_cpus, int rounded_value_size) +{ + int cpu; + + if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { + struct pprint_mapv *v = mapv; + + for (cpu = 0; cpu < num_cpus; cpu++) { + v->ui32 = i + cpu; + v->si32 = -i; + v->unused_bits2a = 3; + v->bits28 = i; + v->unused_bits2b = 3; + v->ui64 = i; + v->aenum = i & 0x03; + v->ui32b = 4; + v->bits2c = 1; + v->si8_4[0][0] = (cpu + i) & 0xff; + v->si8_4[0][1] = (cpu + i + 1) & 0xff; + v->si8_4[1][0] = (cpu + i + 2) & 0xff; + v->si8_4[1][1] = (cpu + i + 3) & 0xff; + v = (void *)v + rounded_value_size; + } + } + +#ifdef __SIZEOF_INT128__ + if (mapv_kind == PPRINT_MAPV_KIND_INT128) { + struct pprint_mapv_int128 *v = mapv; + + for (cpu = 0; cpu < num_cpus; cpu++) { + v->si128a = i; + v->si128b = -i; + v->bits3 = i & 0x07; + v->bits80 = (((unsigned __int128)1) << 64) + i; + v->ui128 = (((unsigned __int128)2) << 64) + i; + v = (void *)v + rounded_value_size; + } + } +#endif +} + +ssize_t get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind, + char *expected_line, ssize_t line_size, + bool percpu_map, unsigned int next_key, + int cpu, void *mapv) +{ + ssize_t nexpected_line = -1; + + if (mapv_kind == PPRINT_MAPV_KIND_BASIC) { + struct pprint_mapv *v = mapv; + + nexpected_line = snprintf(expected_line, line_size, + "%s%u: {%u,0,%d,0x%x,0x%x,0x%x," + "{%llu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s," + "%u,0x%x,[[%d,%d],[%d,%d]]}\n", + percpu_map ? "\tcpu" : "", + percpu_map ? cpu : next_key, + v->ui32, v->si32, + v->unused_bits2a, + v->bits28, + v->unused_bits2b, + (__u64)v->ui64, + v->ui8a[0], v->ui8a[1], + v->ui8a[2], v->ui8a[3], + v->ui8a[4], v->ui8a[5], + v->ui8a[6], v->ui8a[7], + pprint_enum_str[v->aenum], + v->ui32b, + v->bits2c, + v->si8_4[0][0], v->si8_4[0][1], + v->si8_4[1][0], v->si8_4[1][1]); + } + +#ifdef __SIZEOF_INT128__ + if (mapv_kind == PPRINT_MAPV_KIND_INT128) { + struct pprint_mapv_int128 *v = mapv; + + nexpected_line = snprintf(expected_line, line_size, + "%s%u: {0x%lx,0x%lx,0x%lx," + "0x%lx%016lx,0x%lx%016lx}\n", + percpu_map ? "\tcpu" : "", + percpu_map ? cpu : next_key, + (uint64_t)v->si128a, + (uint64_t)v->si128b, + (uint64_t)v->bits3, + (uint64_t)(v->bits80 >> 64), + (uint64_t)v->bits80, + (uint64_t)(v->ui128 >> 64), + (uint64_t)v->ui128); + } +#endif + + return nexpected_line; +} + +static int check_line(const char *expected_line, int nexpected_line, + int expected_line_len, const char *line) +{ + if (CHECK(nexpected_line == expected_line_len, + "expected_line is too long")) + return -1; + + if (strcmp(expected_line, line)) { + fprintf(stderr, "unexpected pprint output\n"); + fprintf(stderr, "expected: %s", expected_line); + fprintf(stderr, " read: %s", line); + return -1; + } + + return 0; +} + + +static void do_test_pprint(int test_num) +{ + const struct btf_raw_test *test = &pprint_test_template[test_num]; + enum pprint_mapv_kind_t mapv_kind = test->mapv_kind; + struct bpf_create_map_attr create_attr = {}; + bool ordered_map, lossless_map, percpu_map; + int err, ret, num_cpus, rounded_value_size; + unsigned int key, nr_read_elems; + int map_fd = -1, btf_fd = -1; + unsigned int raw_btf_size; + char expected_line[255]; + FILE *pin_file = NULL; + char pin_path[255]; + size_t line_len = 0; + char *line = NULL; + void *mapv = NULL; + uint8_t *raw_btf; + ssize_t nread; + + if (!test__start_subtest(test->descr)) + return; + + raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, + test->str_sec, test->str_sec_size, + &raw_btf_size, NULL); + + if (!raw_btf) + return; + + *btf_log_buf = '\0'; + btf_fd = bpf_load_btf(raw_btf, raw_btf_size, + btf_log_buf, BTF_LOG_BUF_SIZE, + always_log); + free(raw_btf); + + if (CHECK(btf_fd == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + create_attr.name = test->map_name; + create_attr.map_type = test->map_type; + create_attr.key_size = test->key_size; + create_attr.value_size = test->value_size; + create_attr.max_entries = test->max_entries; + create_attr.btf_fd = btf_fd; + create_attr.btf_key_type_id = test->key_type_id; + create_attr.btf_value_type_id = test->value_type_id; + + map_fd = bpf_create_map_xattr(&create_attr); + if (CHECK(map_fd == -1, "errno:%d", errno)) { + err = -1; + goto done; + } + + ret = snprintf(pin_path, sizeof(pin_path), "%s/%s", + "/sys/fs/bpf", test->map_name); + + if (CHECK(ret == sizeof(pin_path), "pin_path %s/%s is too long", + "/sys/fs/bpf", test->map_name)) { + err = -1; + goto done; + } + + err = bpf_obj_pin(map_fd, pin_path); + if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno)) + goto done; + + percpu_map = test->percpu_map; + num_cpus = percpu_map ? bpf_num_possible_cpus() : 1; + rounded_value_size = round_up(get_pprint_mapv_size(mapv_kind), 8); + mapv = calloc(num_cpus, rounded_value_size); + if (CHECK(!mapv, "mapv allocation failure")) { + err = -1; + goto done; + } + + for (key = 0; key < test->max_entries; key++) { + set_pprint_mapv(mapv_kind, mapv, key, num_cpus, rounded_value_size); + bpf_map_update_elem(map_fd, &key, mapv, 0); + } + + pin_file = fopen(pin_path, "r"); + if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) { + err = -1; + goto done; + } + + /* Skip lines start with '#' */ + while ((nread = getline(&line, &line_len, pin_file)) > 0 && + *line == '#') + ; + + if (CHECK(nread <= 0, "Unexpected EOF")) { + err = -1; + goto done; + } + + nr_read_elems = 0; + ordered_map = test->ordered_map; + lossless_map = test->lossless_map; + do { + ssize_t nexpected_line; + unsigned int next_key; + void *cmapv; + int cpu; + + next_key = ordered_map ? nr_read_elems : atoi(line); + set_pprint_mapv(mapv_kind, mapv, next_key, num_cpus, rounded_value_size); + cmapv = mapv; + + for (cpu = 0; cpu < num_cpus; cpu++) { + if (percpu_map) { + /* for percpu map, the format looks like: + * <key>: { + * cpu0: <value_on_cpu0> + * cpu1: <value_on_cpu1> + * ... + * cpun: <value_on_cpun> + * } + * + * let us verify the line containing the key here. + */ + if (cpu == 0) { + nexpected_line = snprintf(expected_line, + sizeof(expected_line), + "%u: {\n", + next_key); + + err = check_line(expected_line, nexpected_line, + sizeof(expected_line), line); + if (err == -1) + goto done; + } + + /* read value@cpu */ + nread = getline(&line, &line_len, pin_file); + if (nread < 0) + break; + } + + nexpected_line = get_pprint_expected_line(mapv_kind, expected_line, + sizeof(expected_line), + percpu_map, next_key, + cpu, cmapv); + err = check_line(expected_line, nexpected_line, + sizeof(expected_line), line); + if (err == -1) + goto done; + + cmapv = cmapv + rounded_value_size; + } + + if (percpu_map) { + /* skip the last bracket for the percpu map */ + nread = getline(&line, &line_len, pin_file); + if (nread < 0) + break; + } + + nread = getline(&line, &line_len, pin_file); + } while (++nr_read_elems < test->max_entries && nread > 0); + + if (lossless_map && + CHECK(nr_read_elems < test->max_entries, + "Unexpected EOF. nr_read_elems:%u test->max_entries:%u", + nr_read_elems, test->max_entries)) { + err = -1; + goto done; + } + + if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) { + err = -1; + goto done; + } + + err = 0; + +done: + if (mapv) + free(mapv); + if (!err) + fprintf(stderr, "OK"); + if (*btf_log_buf && (err || always_log)) + fprintf(stderr, "\n%s", btf_log_buf); + if (btf_fd != -1) + close(btf_fd); + if (map_fd != -1) + close(map_fd); + if (pin_file) + fclose(pin_file); + unlink(pin_path); + free(line); +} + +static void test_pprint(void) +{ + unsigned int i; + + /* test various maps with the first test template */ + for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) { + pprint_test_template[0].descr = pprint_tests_meta[i].descr; + pprint_test_template[0].map_type = pprint_tests_meta[i].map_type; + pprint_test_template[0].map_name = pprint_tests_meta[i].map_name; + pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map; + pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map; + pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map; + + do_test_pprint(0); + } + + /* test rest test templates with the first map */ + for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) { + pprint_test_template[i].descr = pprint_tests_meta[0].descr; + pprint_test_template[i].map_type = pprint_tests_meta[0].map_type; + pprint_test_template[i].map_name = pprint_tests_meta[0].map_name; + pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map; + pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map; + pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map; + do_test_pprint(i); + } +} + +#define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \ + (insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff)) + +static struct prog_info_raw_test { + const char *descr; + const char *str_sec; + const char *err_str; + __u32 raw_types[MAX_NR_RAW_U32]; + __u32 str_sec_size; + struct bpf_insn insns[MAX_INSNS]; + __u32 prog_type; + __u32 func_info[MAX_SUBPROGS][2]; + __u32 func_info_rec_size; + __u32 func_info_cnt; + __u32 line_info[MAX_NR_RAW_U32]; + __u32 line_info_rec_size; + __u32 nr_jited_ksyms; + bool expected_prog_load_failure; + __u32 dead_code_cnt; + __u32 dead_code_mask; + __u32 dead_func_cnt; + __u32 dead_func_mask; +} info_raw_tests[] = { +{ + .descr = "func_type (main func + one sub)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ + BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ + BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ + BTF_END_RAW, + }, + .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", + .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), + .insns = { + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 2), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info = { {0, 5}, {3, 6} }, + .func_info_rec_size = 8, + .func_info_cnt = 2, + .line_info = { BTF_END_RAW }, +}, + +{ + .descr = "func_type (Incorrect func_info_rec_size)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ + BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ + BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ + BTF_END_RAW, + }, + .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", + .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), + .insns = { + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 2), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info = { {0, 5}, {3, 6} }, + .func_info_rec_size = 4, + .func_info_cnt = 2, + .line_info = { BTF_END_RAW }, + .expected_prog_load_failure = true, +}, + +{ + .descr = "func_type (Incorrect func_info_cnt)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ + BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ + BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ + BTF_END_RAW, + }, + .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", + .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), + .insns = { + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 2), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info = { {0, 5}, {3, 6} }, + .func_info_rec_size = 8, + .func_info_cnt = 1, + .line_info = { BTF_END_RAW }, + .expected_prog_load_failure = true, +}, + +{ + .descr = "func_type (Incorrect bpf_func_info.insn_off)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ + BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ + BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ + BTF_END_RAW, + }, + .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", + .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), + .insns = { + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 2), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info = { {0, 5}, {2, 6} }, + .func_info_rec_size = 8, + .func_info_cnt = 2, + .line_info = { BTF_END_RAW }, + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (No subprog)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 1, +}, + +{ + .descr = "line_info (No subprog. insn_off >= prog->len)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), + BPF_LINE_INFO_ENC(4, 0, 0, 5, 6), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 1, + .err_str = "line_info[4].insn_off", + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (Zero bpf insn code)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), /* [2] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [3] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"), + .insns = { + BPF_LD_IMM64(BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(1, 0, 0, 2, 9), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 1, + .err_str = "Invalid insn code at line_info[1]", + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (No subprog. zero tailing line_info", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0, + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), + .nr_jited_ksyms = 1, +}, + +{ + .descr = "line_info (No subprog. nonzero tailing line_info)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1, + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), + .nr_jited_ksyms = 1, + .err_str = "nonzero tailing record in line_info", + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (subprog)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, +}, + +{ + .descr = "line_info (subprog + func_info)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 2, + .func_info_rec_size = 8, + .func_info = { {0, 4}, {5, 3} }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, +}, + +{ + .descr = "line_info (subprog. missing 1st func line info)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .err_str = "missing bpf_line_info for func#0", + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (subprog. missing 2nd func line info)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .err_str = "missing bpf_line_info for func#1", + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (subprog. unordered insn offset)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .err_str = "Invalid line_info[2].insn_off", + .expected_prog_load_failure = true, +}, + +{ + .descr = "line_info (dead start)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0/* dead jmp */\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), + .insns = { + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 6), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 1, + .dead_code_cnt = 1, + .dead_code_mask = 0x01, +}, + +{ + .descr = "line_info (dead end)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0/* dead jmp */\0return a + b;\0/* dead exit */"), + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), + BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1), + BPF_EXIT_INSN(), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 0, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 12), + BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 11), + BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 10), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 9), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 8), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 6, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 1, + .dead_code_cnt = 2, + .dead_code_mask = 0x28, +}, + +{ + .descr = "line_info (dead code + subprog + func_info)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0/* dead jmp */" + "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" + "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" + "\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 8), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 2, + .func_info_rec_size = 8, + .func_info = { {0, 4}, {14, 3} }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(14, 0, NAME_TBD, 3, 8), + BPF_LINE_INFO_ENC(16, 0, NAME_TBD, 4, 7), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .dead_code_cnt = 9, + .dead_code_mask = 0x3fe, +}, + +{ + .descr = "line_info (dead subprog)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" + "\0return 0;\0return 0;\0/* dead */\0/* dead */" + "\0/* dead */\0return bla + 1;\0return bla + 1;" + "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), + BPF_CALL_REL(3), + BPF_CALL_REL(5), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_0, 2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 3, + .func_info_rec_size = 8, + .func_info = { {0, 4}, {6, 3}, {9, 5} }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .dead_code_cnt = 3, + .dead_code_mask = 0x70, + .dead_func_cnt = 1, + .dead_func_mask = 0x2, +}, + +{ + .descr = "line_info (dead last subprog)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0dead\0main\0int a=1+1;\0/* live call */" + "\0return 0;\0/* dead */\0/* dead */"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), + BPF_CALL_REL(2), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 2, + .func_info_rec_size = 8, + .func_info = { {0, 4}, {5, 3} }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 1, + .dead_code_cnt = 2, + .dead_code_mask = 0x18, + .dead_func_cnt = 1, + .dead_func_mask = 0x2, +}, + +{ + .descr = "line_info (dead subprog + dead start)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* dead */" + "\0return 0;\0return 0;\0return 0;" + "\0/* dead */\0/* dead */\0/* dead */\0/* dead */" + "\0return b + 1;\0return b + 1;\0return b + 1;"), + .insns = { + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), + BPF_CALL_REL(3), + BPF_CALL_REL(5), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_MOV64_REG(BPF_REG_0, 2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 3, + .func_info_rec_size = 8, + .func_info = { {0, 4}, {7, 3}, {10, 5} }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), + BPF_LINE_INFO_ENC(13, 0, NAME_TBD, 2, 9), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .dead_code_cnt = 5, + .dead_code_mask = 0x1e2, + .dead_func_cnt = 1, + .dead_func_mask = 0x2, +}, + +{ + .descr = "line_info (dead subprog + dead start w/ move)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */" + "\0return 0;\0return 0;\0/* dead */\0/* dead */" + "\0/* dead */\0return bla + 1;\0return bla + 1;" + "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"), + .insns = { + BPF_MOV64_IMM(BPF_REG_2, 1), + BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), + BPF_CALL_REL(3), + BPF_CALL_REL(5), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_CALL_REL(1), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_MOV64_REG(BPF_REG_0, 2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 3, + .func_info_rec_size = 8, + .func_info = { {0, 4}, {6, 3}, {9, 5} }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, + .dead_code_cnt = 3, + .dead_code_mask = 0x70, + .dead_func_cnt = 1, + .dead_func_mask = 0x2, +}, + +{ + .descr = "line_info (dead end + subprog start w/ no linfo)", + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ + BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0x\0main\0func\0/* main linfo */\0/* func linfo */"), + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 1, 3), + BPF_CALL_REL(3), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_TRACEPOINT, + .func_info_cnt = 2, + .func_info_rec_size = 8, + .func_info = { {0, 3}, {6, 4}, }, + .line_info = { + BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), + BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10), + BTF_END_RAW, + }, + .line_info_rec_size = sizeof(struct bpf_line_info), + .nr_jited_ksyms = 2, +}, + +}; + +static size_t probe_prog_length(const struct bpf_insn *fp) +{ + size_t len; + + for (len = MAX_INSNS - 1; len > 0; --len) + if (fp[len].code != 0 || fp[len].imm != 0) + break; + return len + 1; +} + +static __u32 *patch_name_tbd(const __u32 *raw_u32, + const char *str, __u32 str_off, + unsigned int str_sec_size, + unsigned int *ret_size) +{ + int i, raw_u32_size = get_raw_sec_size(raw_u32); + const char *end_str = str + str_sec_size; + const char *next_str = str + str_off; + __u32 *new_u32 = NULL; + + if (raw_u32_size == -1) + return ERR_PTR(-EINVAL); + + if (!raw_u32_size) { + *ret_size = 0; + return NULL; + } + + new_u32 = malloc(raw_u32_size); + if (!new_u32) + return ERR_PTR(-ENOMEM); + + for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) { + if (raw_u32[i] == NAME_TBD) { + next_str = get_next_str(next_str, end_str); + if (CHECK(!next_str, "Error in getting next_str\n")) { + free(new_u32); + return ERR_PTR(-EINVAL); + } + new_u32[i] = next_str - str; + next_str += strlen(next_str); + } else { + new_u32[i] = raw_u32[i]; + } + } + + *ret_size = raw_u32_size; + return new_u32; +} + +static int test_get_finfo(const struct prog_info_raw_test *test, + int prog_fd) +{ + struct bpf_prog_info info = {}; + struct bpf_func_info *finfo; + __u32 info_len, rec_size, i; + void *func_info = NULL; + __u32 nr_func_info; + int err; + + /* get necessary lens */ + info_len = sizeof(struct bpf_prog_info); + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); + if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) { + fprintf(stderr, "%s\n", btf_log_buf); + return -1; + } + nr_func_info = test->func_info_cnt - test->dead_func_cnt; + if (CHECK(info.nr_func_info != nr_func_info, + "incorrect info.nr_func_info (1st) %d", + info.nr_func_info)) { + return -1; + } + + rec_size = info.func_info_rec_size; + if (CHECK(rec_size != sizeof(struct bpf_func_info), + "incorrect info.func_info_rec_size (1st) %d", rec_size)) { + return -1; + } + + if (!info.nr_func_info) + return 0; + + func_info = malloc(info.nr_func_info * rec_size); + if (CHECK(!func_info, "out of memory")) + return -1; + + /* reset info to only retrieve func_info related data */ + memset(&info, 0, sizeof(info)); + info.nr_func_info = nr_func_info; + info.func_info_rec_size = rec_size; + info.func_info = ptr_to_u64(func_info); + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); + if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) { + fprintf(stderr, "%s\n", btf_log_buf); + err = -1; + goto done; + } + if (CHECK(info.nr_func_info != nr_func_info, + "incorrect info.nr_func_info (2nd) %d", + info.nr_func_info)) { + err = -1; + goto done; + } + if (CHECK(info.func_info_rec_size != rec_size, + "incorrect info.func_info_rec_size (2nd) %d", + info.func_info_rec_size)) { + err = -1; + goto done; + } + + finfo = func_info; + for (i = 0; i < nr_func_info; i++) { + if (test->dead_func_mask & (1 << i)) + continue; + if (CHECK(finfo->type_id != test->func_info[i][1], + "incorrect func_type %u expected %u", + finfo->type_id, test->func_info[i][1])) { + err = -1; + goto done; + } + finfo = (void *)finfo + rec_size; + } + + err = 0; + +done: + free(func_info); + return err; +} + +static int test_get_linfo(const struct prog_info_raw_test *test, + const void *patched_linfo, + __u32 cnt, int prog_fd) +{ + __u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens; + __u64 *jited_linfo = NULL, *jited_ksyms = NULL; + __u32 rec_size, jited_rec_size, jited_cnt; + struct bpf_line_info *linfo = NULL; + __u32 cur_func_len, ksyms_found; + struct bpf_prog_info info = {}; + __u32 *jited_func_lens = NULL; + __u64 cur_func_ksyms; + __u32 dead_insns; + int err; + + jited_cnt = cnt; + rec_size = sizeof(*linfo); + jited_rec_size = sizeof(*jited_linfo); + if (test->nr_jited_ksyms) + nr_jited_ksyms = test->nr_jited_ksyms; + else + nr_jited_ksyms = test->func_info_cnt - test->dead_func_cnt; + nr_jited_func_lens = nr_jited_ksyms; + + info_len = sizeof(struct bpf_prog_info); + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); + if (CHECK(err == -1, "err:%d errno:%d", err, errno)) { + err = -1; + goto done; + } + + if (!info.jited_prog_len) { + /* prog is not jited */ + jited_cnt = 0; + nr_jited_ksyms = 1; + nr_jited_func_lens = 1; + } + + if (CHECK(info.nr_line_info != cnt || + info.nr_jited_line_info != jited_cnt || + info.nr_jited_ksyms != nr_jited_ksyms || + info.nr_jited_func_lens != nr_jited_func_lens || + (!info.nr_line_info && info.nr_jited_line_info), + "info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) nr_jited_ksyms:%u(expected:%u) nr_jited_func_lens:%u(expected:%u)", + info.nr_line_info, cnt, + info.nr_jited_line_info, jited_cnt, + info.nr_jited_ksyms, nr_jited_ksyms, + info.nr_jited_func_lens, nr_jited_func_lens)) { + err = -1; + goto done; + } + + if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) || + info.jited_line_info_rec_size != sizeof(__u64), + "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)", + info.line_info_rec_size, rec_size, + info.jited_line_info_rec_size, jited_rec_size)) { + err = -1; + goto done; + } + + if (!cnt) + return 0; + + rec_size = info.line_info_rec_size; + jited_rec_size = info.jited_line_info_rec_size; + + memset(&info, 0, sizeof(info)); + + linfo = calloc(cnt, rec_size); + if (CHECK(!linfo, "!linfo")) { + err = -1; + goto done; + } + info.nr_line_info = cnt; + info.line_info_rec_size = rec_size; + info.line_info = ptr_to_u64(linfo); + + if (jited_cnt) { + jited_linfo = calloc(jited_cnt, jited_rec_size); + jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms)); + jited_func_lens = calloc(nr_jited_func_lens, + sizeof(*jited_func_lens)); + if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens, + "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p", + jited_linfo, jited_ksyms, jited_func_lens)) { + err = -1; + goto done; + } + + info.nr_jited_line_info = jited_cnt; + info.jited_line_info_rec_size = jited_rec_size; + info.jited_line_info = ptr_to_u64(jited_linfo); + info.nr_jited_ksyms = nr_jited_ksyms; + info.jited_ksyms = ptr_to_u64(jited_ksyms); + info.nr_jited_func_lens = nr_jited_func_lens; + info.jited_func_lens = ptr_to_u64(jited_func_lens); + } + + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); + + /* + * Only recheck the info.*line_info* fields. + * Other fields are not the concern of this test. + */ + if (CHECK(err == -1 || + info.nr_line_info != cnt || + (jited_cnt && !info.jited_line_info) || + info.nr_jited_line_info != jited_cnt || + info.line_info_rec_size != rec_size || + info.jited_line_info_rec_size != jited_rec_size, + "err:%d errno:%d info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) line_info_rec_size:%u(expected:%u) jited_linfo_rec_size:%u(expected:%u) line_info:%p jited_line_info:%p", + err, errno, + info.nr_line_info, cnt, + info.nr_jited_line_info, jited_cnt, + info.line_info_rec_size, rec_size, + info.jited_line_info_rec_size, jited_rec_size, + (void *)(long)info.line_info, + (void *)(long)info.jited_line_info)) { + err = -1; + goto done; + } + + dead_insns = 0; + while (test->dead_code_mask & (1 << dead_insns)) + dead_insns++; + + CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u", + linfo[0].insn_off); + for (i = 1; i < cnt; i++) { + const struct bpf_line_info *expected_linfo; + + while (test->dead_code_mask & (1 << (i + dead_insns))) + dead_insns++; + + expected_linfo = patched_linfo + + ((i + dead_insns) * test->line_info_rec_size); + if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off, + "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u", + i, linfo[i].insn_off, + i - 1, linfo[i - 1].insn_off)) { + err = -1; + goto done; + } + if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off || + linfo[i].line_off != expected_linfo->line_off || + linfo[i].line_col != expected_linfo->line_col, + "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i, + linfo[i].file_name_off, + linfo[i].line_off, + linfo[i].line_col, + expected_linfo->file_name_off, + expected_linfo->line_off, + expected_linfo->line_col)) { + err = -1; + goto done; + } + } + + if (!jited_cnt) { + fprintf(stderr, "not jited. skipping jited_line_info check. "); + err = 0; + goto done; + } + + if (CHECK(jited_linfo[0] != jited_ksyms[0], + "jited_linfo[0]:%lx != jited_ksyms[0]:%lx", + (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) { + err = -1; + goto done; + } + + ksyms_found = 1; + cur_func_len = jited_func_lens[0]; + cur_func_ksyms = jited_ksyms[0]; + for (i = 1; i < jited_cnt; i++) { + if (ksyms_found < nr_jited_ksyms && + jited_linfo[i] == jited_ksyms[ksyms_found]) { + cur_func_ksyms = jited_ksyms[ksyms_found]; + cur_func_len = jited_ksyms[ksyms_found]; + ksyms_found++; + continue; + } + + if (CHECK(jited_linfo[i] <= jited_linfo[i - 1], + "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx", + i, (long)jited_linfo[i], + i - 1, (long)(jited_linfo[i - 1]))) { + err = -1; + goto done; + } + + if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len, + "jited_linfo[%u]:%lx - %lx > %u", + i, (long)jited_linfo[i], (long)cur_func_ksyms, + cur_func_len)) { + err = -1; + goto done; + } + } + + if (CHECK(ksyms_found != nr_jited_ksyms, + "ksyms_found:%u != nr_jited_ksyms:%u", + ksyms_found, nr_jited_ksyms)) { + err = -1; + goto done; + } + + err = 0; + +done: + free(linfo); + free(jited_linfo); + free(jited_ksyms); + free(jited_func_lens); + return err; +} + +static void do_test_info_raw(unsigned int test_num) +{ + const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1]; + unsigned int raw_btf_size, linfo_str_off, linfo_size; + int btf_fd = -1, prog_fd = -1, err = 0; + void *raw_btf, *patched_linfo = NULL; + const char *ret_next_str; + union bpf_attr attr = {}; + + if (!test__start_subtest(test->descr)) + return; + + raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, + test->str_sec, test->str_sec_size, + &raw_btf_size, &ret_next_str); + if (!raw_btf) + return; + + *btf_log_buf = '\0'; + btf_fd = bpf_load_btf(raw_btf, raw_btf_size, + btf_log_buf, BTF_LOG_BUF_SIZE, + always_log); + free(raw_btf); + + if (CHECK(btf_fd == -1, "invalid btf_fd errno:%d", errno)) { + err = -1; + goto done; + } + + if (*btf_log_buf && always_log) + fprintf(stderr, "\n%s", btf_log_buf); + *btf_log_buf = '\0'; + + linfo_str_off = ret_next_str - test->str_sec; + patched_linfo = patch_name_tbd(test->line_info, + test->str_sec, linfo_str_off, + test->str_sec_size, &linfo_size); + if (IS_ERR(patched_linfo)) { + fprintf(stderr, "error in creating raw bpf_line_info"); + err = -1; + goto done; + } + + attr.prog_type = test->prog_type; + attr.insns = ptr_to_u64(test->insns); + attr.insn_cnt = probe_prog_length(test->insns); + attr.license = ptr_to_u64("GPL"); + attr.prog_btf_fd = btf_fd; + attr.func_info_rec_size = test->func_info_rec_size; + attr.func_info_cnt = test->func_info_cnt; + attr.func_info = ptr_to_u64(test->func_info); + attr.log_buf = ptr_to_u64(btf_log_buf); + attr.log_size = BTF_LOG_BUF_SIZE; + attr.log_level = 1; + if (linfo_size) { + attr.line_info_rec_size = test->line_info_rec_size; + attr.line_info = ptr_to_u64(patched_linfo); + attr.line_info_cnt = linfo_size / attr.line_info_rec_size; + } + + prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); + err = ((prog_fd == -1) != test->expected_prog_load_failure); + if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d", + prog_fd, test->expected_prog_load_failure, errno) || + CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), + "expected err_str:%s", test->err_str)) { + err = -1; + goto done; + } + + if (prog_fd == -1) + goto done; + + err = test_get_finfo(test, prog_fd); + if (err) + goto done; + + err = test_get_linfo(test, patched_linfo, + attr.line_info_cnt - test->dead_code_cnt, + prog_fd); + if (err) + goto done; + +done: + if (*btf_log_buf && (err || always_log)) + fprintf(stderr, "\n%s", btf_log_buf); + + if (btf_fd != -1) + close(btf_fd); + if (prog_fd != -1) + close(prog_fd); + + if (!IS_ERR(patched_linfo)) + free(patched_linfo); +} + +struct btf_raw_data { + __u32 raw_types[MAX_NR_RAW_U32]; + const char *str_sec; + __u32 str_sec_size; +}; + +struct btf_dedup_test { + const char *descr; + struct btf_raw_data input; + struct btf_raw_data expect; + struct btf_dedup_opts opts; +}; + +const struct btf_dedup_test dedup_tests[] = { + +{ + .descr = "dedup: unused strings filtering", + .input = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 4), + BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 64, 8), + BTF_END_RAW, + }, + BTF_STR_SEC("\0unused\0int\0foo\0bar\0long"), + }, + .expect = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), + BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0long"), + }, + .opts = { + .dont_resolve_fwds = false, + }, +}, +{ + .descr = "dedup: strings deduplication", + .input = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), + BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), + BTF_TYPE_INT_ENC(NAME_NTH(3), BTF_INT_SIGNED, 0, 32, 4), + BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 64, 8), + BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0long int\0int\0long int\0int"), + }, + .expect = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), + BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8), + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0long int"), + }, + .opts = { + .dont_resolve_fwds = false, + }, +}, +{ + .descr = "dedup: struct example #1", + /* + * struct s { + * struct s *next; + * const int *a; + * int b[16]; + * int c; + * } + */ + .input = { + .raw_types = { + /* int */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* int[16] */ + BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ + /* struct s { */ + BTF_STRUCT_ENC(NAME_NTH(2), 4, 84), /* [3] */ + BTF_MEMBER_ENC(NAME_NTH(3), 4, 0), /* struct s *next; */ + BTF_MEMBER_ENC(NAME_NTH(4), 5, 64), /* const int *a; */ + BTF_MEMBER_ENC(NAME_NTH(5), 2, 128), /* int b[16]; */ + BTF_MEMBER_ENC(NAME_NTH(6), 1, 640), /* int c; */ + /* ptr -> [3] struct s */ + BTF_PTR_ENC(3), /* [4] */ + /* ptr -> [6] const int */ + BTF_PTR_ENC(6), /* [5] */ + /* const -> [1] int */ + BTF_CONST_ENC(1), /* [6] */ + + /* full copy of the above */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [7] */ + BTF_TYPE_ARRAY_ENC(7, 7, 16), /* [8] */ + BTF_STRUCT_ENC(NAME_NTH(2), 4, 84), /* [9] */ + BTF_MEMBER_ENC(NAME_NTH(3), 10, 0), + BTF_MEMBER_ENC(NAME_NTH(4), 11, 64), + BTF_MEMBER_ENC(NAME_NTH(5), 8, 128), + BTF_MEMBER_ENC(NAME_NTH(6), 7, 640), + BTF_PTR_ENC(9), /* [10] */ + BTF_PTR_ENC(12), /* [11] */ + BTF_CONST_ENC(7), /* [12] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0"), + }, + .expect = { + .raw_types = { + /* int */ + BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* int[16] */ + BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ + /* struct s { */ + BTF_STRUCT_ENC(NAME_NTH(6), 4, 84), /* [3] */ + BTF_MEMBER_ENC(NAME_NTH(5), 4, 0), /* struct s *next; */ + BTF_MEMBER_ENC(NAME_NTH(1), 5, 64), /* const int *a; */ + BTF_MEMBER_ENC(NAME_NTH(2), 2, 128), /* int b[16]; */ + BTF_MEMBER_ENC(NAME_NTH(3), 1, 640), /* int c; */ + /* ptr -> [3] struct s */ + BTF_PTR_ENC(3), /* [4] */ + /* ptr -> [6] const int */ + BTF_PTR_ENC(6), /* [5] */ + /* const -> [1] int */ + BTF_CONST_ENC(1), /* [6] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0a\0b\0c\0int\0next\0s"), + }, + .opts = { + .dont_resolve_fwds = false, + }, +}, +{ + .descr = "dedup: struct <-> fwd resolution w/ hash collision", + /* + * // CU 1: + * struct x; + * struct s { + * struct x *x; + * }; + * // CU 2: + * struct x {}; + * struct s { + * struct x *x; + * }; + */ + .input = { + .raw_types = { + /* CU 1 */ + BTF_FWD_ENC(NAME_TBD, 0 /* struct fwd */), /* [1] fwd x */ + BTF_PTR_ENC(1), /* [2] ptr -> [1] */ + BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] struct s */ + BTF_MEMBER_ENC(NAME_TBD, 2, 0), + /* CU 2 */ + BTF_STRUCT_ENC(NAME_TBD, 0, 0), /* [4] struct x */ + BTF_PTR_ENC(4), /* [5] ptr -> [4] */ + BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [6] struct s */ + BTF_MEMBER_ENC(NAME_TBD, 5, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0x\0s\0x\0x\0s\0x\0"), + }, + .expect = { + .raw_types = { + BTF_PTR_ENC(3), /* [1] ptr -> [3] */ + BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [2] struct s */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_STRUCT_ENC(NAME_NTH(2), 0, 0), /* [3] struct x */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0s\0x"), + }, + .opts = { + .dont_resolve_fwds = false, + .dedup_table_size = 1, /* force hash collisions */ + }, +}, +{ + .descr = "dedup: void equiv check", + /* + * // CU 1: + * struct s { + * struct {} *x; + * }; + * // CU 2: + * struct s { + * int *x; + * }; + */ + .input = { + .raw_types = { + /* CU 1 */ + BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ + BTF_PTR_ENC(1), /* [2] ptr -> [1] */ + BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ + BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), + /* CU 2 */ + BTF_PTR_ENC(0), /* [4] ptr -> void */ + BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ + BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0s\0x"), + }, + .expect = { + .raw_types = { + /* CU 1 */ + BTF_STRUCT_ENC(0, 0, 1), /* [1] struct {} */ + BTF_PTR_ENC(1), /* [2] ptr -> [1] */ + BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [3] struct s */ + BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), + /* CU 2 */ + BTF_PTR_ENC(0), /* [4] ptr -> void */ + BTF_STRUCT_ENC(NAME_NTH(1), 1, 8), /* [5] struct s */ + BTF_MEMBER_ENC(NAME_NTH(2), 4, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0s\0x"), + }, + .opts = { + .dont_resolve_fwds = false, + .dedup_table_size = 1, /* force hash collisions */ + }, +}, +{ + .descr = "dedup: all possible kinds (no duplicates)", + .input = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ + BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ + BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ + BTF_PTR_ENC(0), /* [8] ptr */ + BTF_CONST_ENC(8), /* [9] const */ + BTF_VOLATILE_ENC(8), /* [10] volatile */ + BTF_RESTRICT_ENC(8), /* [11] restrict */ + BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 8), + BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M"), + }, + .expect = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8), /* [1] int */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4), /* [2] enum */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */), /* [3] fwd */ + BTF_TYPE_ARRAY_ENC(2, 1, 7), /* [4] array */ + BTF_STRUCT_ENC(NAME_TBD, 1, 4), /* [5] struct */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_UNION_ENC(NAME_TBD, 1, 4), /* [6] union */ + BTF_MEMBER_ENC(NAME_TBD, 1, 0), + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [7] typedef */ + BTF_PTR_ENC(0), /* [8] ptr */ + BTF_CONST_ENC(8), /* [9] const */ + BTF_VOLATILE_ENC(8), /* [10] volatile */ + BTF_RESTRICT_ENC(8), /* [11] restrict */ + BTF_FUNC_PROTO_ENC(1, 2), /* [12] func_proto */ + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), + BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 8), + BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M"), + }, + .opts = { + .dont_resolve_fwds = false, + }, +}, +{ + .descr = "dedup: no int duplicates", + .input = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), + /* different name */ + BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), + /* different encoding */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), + /* different bit offset */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), + /* different bit size */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), + /* different byte size */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0some other int"), + }, + .expect = { + .raw_types = { + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8), + /* different name */ + BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8), + /* different encoding */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8), + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8), + /* different bit offset */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8), + /* different bit size */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8), + /* different byte size */ + BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), + BTF_END_RAW, + }, + BTF_STR_SEC("\0int\0some other int"), + }, + .opts = { + .dont_resolve_fwds = false, + }, +}, +{ + .descr = "dedup: enum fwd resolution", + .input = { + .raw_types = { + /* [1] fwd enum 'e1' before full enum */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), + /* [2] full enum 'e1' after fwd */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), + BTF_ENUM_ENC(NAME_NTH(2), 123), + /* [3] full enum 'e2' before fwd */ + BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), + BTF_ENUM_ENC(NAME_NTH(4), 456), + /* [4] fwd enum 'e2' after full enum */ + BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), + /* [5] incompatible fwd enum with different size */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1), + /* [6] incompatible full enum with different value */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), + BTF_ENUM_ENC(NAME_NTH(2), 321), + BTF_END_RAW, + }, + BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), + }, + .expect = { + .raw_types = { + /* [1] full enum 'e1' */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), + BTF_ENUM_ENC(NAME_NTH(2), 123), + /* [2] full enum 'e2' */ + BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), + BTF_ENUM_ENC(NAME_NTH(4), 456), + /* [3] incompatible fwd enum with different size */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1), + /* [4] incompatible full enum with different value */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), + BTF_ENUM_ENC(NAME_NTH(2), 321), + BTF_END_RAW, + }, + BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), + }, + .opts = { + .dont_resolve_fwds = false, + }, +}, +{ + .descr = "dedup: datasec and vars pass-through", + .input = { + .raw_types = { + /* int */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* static int t */ + BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ + /* .bss section */ /* [3] */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), + BTF_VAR_SECINFO_ENC(2, 0, 4), + /* int, referenced from [5] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ + /* another static int t */ + BTF_VAR_ENC(NAME_NTH(2), 4, 0), /* [5] */ + /* another .bss section */ /* [6] */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), + BTF_VAR_SECINFO_ENC(5, 0, 4), + BTF_END_RAW, + }, + BTF_STR_SEC("\0.bss\0t"), + }, + .expect = { + .raw_types = { + /* int */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* static int t */ + BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [2] */ + /* .bss section */ /* [3] */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), + BTF_VAR_SECINFO_ENC(2, 0, 4), + /* another static int t */ + BTF_VAR_ENC(NAME_NTH(2), 1, 0), /* [4] */ + /* another .bss section */ /* [5] */ + BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), + BTF_VAR_SECINFO_ENC(4, 0, 4), + BTF_END_RAW, + }, + BTF_STR_SEC("\0.bss\0t"), + }, + .opts = { + .dont_resolve_fwds = false, + .dedup_table_size = 1 + }, +}, + +}; + +static int btf_type_size(const struct btf_type *t) +{ + int base_size = sizeof(struct btf_type); + __u16 vlen = BTF_INFO_VLEN(t->info); + __u16 kind = BTF_INFO_KIND(t->info); + + switch (kind) { + case BTF_KIND_FWD: + case BTF_KIND_CONST: + case BTF_KIND_VOLATILE: + case BTF_KIND_RESTRICT: + case BTF_KIND_PTR: + case BTF_KIND_TYPEDEF: + case BTF_KIND_FUNC: + return base_size; + case BTF_KIND_INT: + return base_size + sizeof(__u32); + case BTF_KIND_ENUM: + return base_size + vlen * sizeof(struct btf_enum); + case BTF_KIND_ARRAY: + return base_size + sizeof(struct btf_array); + case BTF_KIND_STRUCT: + case BTF_KIND_UNION: + return base_size + vlen * sizeof(struct btf_member); + case BTF_KIND_FUNC_PROTO: + return base_size + vlen * sizeof(struct btf_param); + case BTF_KIND_VAR: + return base_size + sizeof(struct btf_var); + case BTF_KIND_DATASEC: + return base_size + vlen * sizeof(struct btf_var_secinfo); + default: + fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind); + return -EINVAL; + } +} + +static void dump_btf_strings(const char *strs, __u32 len) +{ + const char *cur = strs; + int i = 0; + + while (cur < strs + len) { + fprintf(stderr, "string #%d: '%s'\n", i, cur); + cur += strlen(cur) + 1; + i++; + } +} + +static void do_test_dedup(unsigned int test_num) +{ + const struct btf_dedup_test *test = &dedup_tests[test_num - 1]; + __u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size; + const struct btf_header *test_hdr, *expect_hdr; + struct btf *test_btf = NULL, *expect_btf = NULL; + const void *test_btf_data, *expect_btf_data; + const char *ret_test_next_str, *ret_expect_next_str; + const char *test_strs, *expect_strs; + const char *test_str_cur, *test_str_end; + const char *expect_str_cur, *expect_str_end; + unsigned int raw_btf_size; + void *raw_btf; + int err = 0, i; + + if (!test__start_subtest(test->descr)) + return; + + raw_btf = btf_raw_create(&hdr_tmpl, test->input.raw_types, + test->input.str_sec, test->input.str_sec_size, + &raw_btf_size, &ret_test_next_str); + if (!raw_btf) + return; + + test_btf = btf__new((__u8 *)raw_btf, raw_btf_size); + free(raw_btf); + if (CHECK(IS_ERR(test_btf), "invalid test_btf errno:%ld", + PTR_ERR(test_btf))) { + err = -1; + goto done; + } + + raw_btf = btf_raw_create(&hdr_tmpl, test->expect.raw_types, + test->expect.str_sec, + test->expect.str_sec_size, + &raw_btf_size, &ret_expect_next_str); + if (!raw_btf) + return; + expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size); + free(raw_btf); + if (CHECK(IS_ERR(expect_btf), "invalid expect_btf errno:%ld", + PTR_ERR(expect_btf))) { + err = -1; + goto done; + } + + err = btf__dedup(test_btf, NULL, &test->opts); + if (CHECK(err, "btf_dedup failed errno:%d", err)) { + err = -1; + goto done; + } + + test_btf_data = btf__get_raw_data(test_btf, &test_btf_size); + expect_btf_data = btf__get_raw_data(expect_btf, &expect_btf_size); + if (CHECK(test_btf_size != expect_btf_size, + "test_btf_size:%u != expect_btf_size:%u", + test_btf_size, expect_btf_size)) { + err = -1; + goto done; + } + + test_hdr = test_btf_data; + test_strs = test_btf_data + sizeof(*test_hdr) + test_hdr->str_off; + expect_hdr = expect_btf_data; + expect_strs = expect_btf_data + sizeof(*test_hdr) + expect_hdr->str_off; + if (CHECK(test_hdr->str_len != expect_hdr->str_len, + "test_hdr->str_len:%u != expect_hdr->str_len:%u", + test_hdr->str_len, expect_hdr->str_len)) { + fprintf(stderr, "\ntest strings:\n"); + dump_btf_strings(test_strs, test_hdr->str_len); + fprintf(stderr, "\nexpected strings:\n"); + dump_btf_strings(expect_strs, expect_hdr->str_len); + err = -1; + goto done; + } + + test_str_cur = test_strs; + test_str_end = test_strs + test_hdr->str_len; + expect_str_cur = expect_strs; + expect_str_end = expect_strs + expect_hdr->str_len; + while (test_str_cur < test_str_end && expect_str_cur < expect_str_end) { + size_t test_len, expect_len; + + test_len = strlen(test_str_cur); + expect_len = strlen(expect_str_cur); + if (CHECK(test_len != expect_len, + "test_len:%zu != expect_len:%zu " + "(test_str:%s, expect_str:%s)", + test_len, expect_len, test_str_cur, expect_str_cur)) { + err = -1; + goto done; + } + if (CHECK(strcmp(test_str_cur, expect_str_cur), + "test_str:%s != expect_str:%s", + test_str_cur, expect_str_cur)) { + err = -1; + goto done; + } + test_str_cur += test_len + 1; + expect_str_cur += expect_len + 1; + } + if (CHECK(test_str_cur != test_str_end, + "test_str_cur:%p != test_str_end:%p", + test_str_cur, test_str_end)) { + err = -1; + goto done; + } + + test_nr_types = btf__get_nr_types(test_btf); + expect_nr_types = btf__get_nr_types(expect_btf); + if (CHECK(test_nr_types != expect_nr_types, + "test_nr_types:%u != expect_nr_types:%u", + test_nr_types, expect_nr_types)) { + err = -1; + goto done; + } + + for (i = 1; i <= test_nr_types; i++) { + const struct btf_type *test_type, *expect_type; + int test_size, expect_size; + + test_type = btf__type_by_id(test_btf, i); + expect_type = btf__type_by_id(expect_btf, i); + test_size = btf_type_size(test_type); + expect_size = btf_type_size(expect_type); + + if (CHECK(test_size != expect_size, + "type #%d: test_size:%d != expect_size:%u", + i, test_size, expect_size)) { + err = -1; + goto done; + } + if (CHECK(memcmp((void *)test_type, + (void *)expect_type, + test_size), + "type #%d: contents differ", i)) { + err = -1; + goto done; + } + } + +done: + if (!IS_ERR(test_btf)) + btf__free(test_btf); + if (!IS_ERR(expect_btf)) + btf__free(expect_btf); +} + +void test_btf(void) +{ + int i; + + always_log = env.verbosity > VERBOSE_NONE; + + for (i = 1; i <= ARRAY_SIZE(raw_tests); i++) + do_test_raw(i); + for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++) + do_test_get_info(i); + for (i = 1; i <= ARRAY_SIZE(file_tests); i++) + do_test_file(i); + for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++) + do_test_info_raw(i); + for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++) + do_test_dedup(i); + test_pprint(); +} |