| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Martin KaFai Lau | 24870 | 54.92% | 17 | 16.50% |
| Yonghong Song | 10138 | 22.39% | 31 | 30.10% |
| Andrii Nakryiko | 3792 | 8.37% | 23 | 22.33% |
| Jakub Kiciński | 2468 | 5.45% | 1 | 0.97% |
| Daniel Borkmann | 1573 | 3.47% | 7 | 6.80% |
| Eduard Zingerman | 1233 | 2.72% | 3 | 2.91% |
| Ilya Leoshkevich | 546 | 1.21% | 4 | 3.88% |
| Kumar Kartikeya Dwivedi | 255 | 0.56% | 1 | 0.97% |
| Stanislav Fomichev | 162 | 0.36% | 4 | 3.88% |
| Lorenz Bauer | 130 | 0.29% | 1 | 0.97% |
| Yoshiki Komachi | 50 | 0.11% | 1 | 0.97% |
| Alexei Starovoitov | 46 | 0.10% | 1 | 0.97% |
| Hengqi Chen | 8 | 0.02% | 2 | 1.94% |
| YiFei Zhu | 5 | 0.01% | 1 | 0.97% |
| Quentin Monnet | 2 | 0.00% | 1 | 0.97% |
| Daniel Müller | 2 | 0.00% | 1 | 0.97% |
| Junlin Yang | 2 | 0.00% | 1 | 0.97% |
| Dan Carpenter | 1 | 0.00% | 1 | 0.97% |
| Colin Ian King | 1 | 0.00% | 1 | 0.97% |
| Mauricio Vásquez | 1 | 0.00% | 1 | 0.97% |
| Total | 45285 | 103 |
/* 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 <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_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 NAME_TBD 0xdeadb33f #define NAME_NTH(N) (0xfffe0000 | N) #define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xfffe0000) #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", }, { .descr = "var after datasec, ptr followed by modifier", .raw_types = { /* .bss section */ /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), sizeof(void*)+4), BTF_VAR_SECINFO_ENC(4, 0, sizeof(void*)), BTF_VAR_SECINFO_ENC(6, sizeof(void*), 4), /* int */ /* [2] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int* */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), BTF_VAR_ENC(NAME_TBD, 3, 0), /* [4] */ /* const int */ /* [5] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */ BTF_END_RAW, }, .str_sec = "\0a\0b\0c\0", .str_sec_size = sizeof("\0a\0b\0c\0"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = ".bss", .key_size = sizeof(int), .value_size = sizeof(void*)+4, .key_type_id = 0, .value_type_id = 1, .max_entries = 1, }, /* 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 exceeds 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 exceeds 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, 0x20000000, 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 = "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, }, /* * elf .rodata section size 4 and btf .rodata section vlen 0. */ { .descr = "datasec: vlen == 0", .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* .rodata section */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 0), 4), /* [2] */ BTF_END_RAW, }, BTF_STR_SEC("\0.rodata"), .map_type = BPF_MAP_TYPE_ARRAY, .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 1, }, { .descr = "datasec: name '?.foo bar:buz' is ok", .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* VAR x */ /* [2] */ BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1), BTF_VAR_STATIC, /* DATASEC ?.data */ /* [3] */ BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), BTF_VAR_SECINFO_ENC(2, 0, 4), BTF_END_RAW, }, BTF_STR_SEC("\0x\0?.foo bar:buz"), }, { .descr = "type name '?foo' is not ok", .raw_types = { /* union ?foo; */ BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0?foo"), .err_str = "Invalid name", .btf_load_err = true, }, { .descr = "float test #1, well-formed", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [2] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [3] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 8), /* [4] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 12), /* [5] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 16), /* [6] */ BTF_STRUCT_ENC(NAME_TBD, 5, 48), /* [7] */ BTF_MEMBER_ENC(NAME_TBD, 2, 0), BTF_MEMBER_ENC(NAME_TBD, 3, 32), BTF_MEMBER_ENC(NAME_TBD, 4, 64), BTF_MEMBER_ENC(NAME_TBD, 5, 128), BTF_MEMBER_ENC(NAME_TBD, 6, 256), BTF_END_RAW, }, BTF_STR_SEC("\0int\0_Float16\0float\0double\0_Float80\0long_double" "\0floats\0a\0b\0c\0d\0e"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "float_type_check_btf", .key_size = sizeof(int), .value_size = 48, .key_type_id = 1, .value_type_id = 7, .max_entries = 1, }, { .descr = "float test #2, invalid vlen", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 0, 1), 4), /* [2] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0float"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "float_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, .btf_load_err = true, .err_str = "vlen != 0", }, { .descr = "float test #3, invalid kind_flag", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 1, 0), 4), /* [2] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0float"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "float_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid btf_info kind_flag", }, { .descr = "float test #4, member does not fit", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [2] */ BTF_STRUCT_ENC(NAME_TBD, 1, 2), /* [3] */ BTF_MEMBER_ENC(NAME_TBD, 2, 0), BTF_END_RAW, }, BTF_STR_SEC("\0int\0float\0floats\0x"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "float_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 3, .max_entries = 1, .btf_load_err = true, .err_str = "Member exceeds struct_size", }, { .descr = "float test #5, member is not properly aligned", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 4), /* [2] */ BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [3] */ BTF_MEMBER_ENC(NAME_TBD, 2, 8), BTF_END_RAW, }, BTF_STR_SEC("\0int\0float\0floats\0x"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "float_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 3, .max_entries = 1, .btf_load_err = true, .err_str = "Member is not properly aligned", }, { .descr = "float test #6, invalid size", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 6), /* [2] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0float"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "float_type_check_btf", .key_size = sizeof(int), .value_size = 6, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid type_size", }, { .descr = "decl_tag test #1, struct/member, well-formed", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_STRUCT_ENC(0, 2, 8), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_MEMBER_ENC(NAME_TBD, 1, 32), BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), BTF_DECL_TAG_ENC(NAME_TBD, 2, 1), BTF_END_RAW, }, BTF_STR_SEC("\0m1\0m2\0tag1\0tag2\0tag3"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 8, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, }, { .descr = "decl_tag test #2, union/member, well-formed", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_UNION_ENC(NAME_TBD, 2, 4), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), BTF_DECL_TAG_ENC(NAME_TBD, 2, 1), BTF_END_RAW, }, BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, }, { .descr = "decl_tag test #3, variable, well-formed", .raw_types = { 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, 1, 1), /* [3] */ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), BTF_DECL_TAG_ENC(NAME_TBD, 3, -1), BTF_END_RAW, }, BTF_STR_SEC("\0local\0global\0tag1\0tag2"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, }, { .descr = "decl_tag test #4, func/parameter, well-formed", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ BTF_DECL_TAG_ENC(NAME_TBD, 3, -1), BTF_DECL_TAG_ENC(NAME_TBD, 3, 0), BTF_DECL_TAG_ENC(NAME_TBD, 3, 1), BTF_END_RAW, }, BTF_STR_SEC("\0arg1\0arg2\0f\0tag1\0tag2\0tag3"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, }, { .descr = "decl_tag test #5, invalid value", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ BTF_DECL_TAG_ENC(0, 2, -1), BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid value", }, { .descr = "decl_tag test #6, invalid target type", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_DECL_TAG_ENC(NAME_TBD, 1, -1), BTF_END_RAW, }, BTF_STR_SEC("\0tag1"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid type", }, { .descr = "decl_tag test #7, invalid vlen", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 1), 2), (0), BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag1"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "vlen != 0", }, { .descr = "decl_tag test #8, invalid kflag", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 1, 0), 2), (-1), BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag1"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid btf_info kind_flag", }, { .descr = "decl_tag test #9, var, invalid component_idx", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid component_idx", }, { .descr = "decl_tag test #10, struct member, invalid component_idx", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_STRUCT_ENC(0, 2, 8), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_MEMBER_ENC(NAME_TBD, 1, 32), BTF_DECL_TAG_ENC(NAME_TBD, 2, 2), BTF_END_RAW, }, BTF_STR_SEC("\0m1\0m2\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 8, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid component_idx", }, { .descr = "decl_tag test #11, func parameter, invalid component_idx", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ BTF_DECL_TAG_ENC(NAME_TBD, 3, 2), BTF_END_RAW, }, BTF_STR_SEC("\0arg1\0arg2\0f\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid component_idx", }, { .descr = "decl_tag test #12, < -1 component_idx", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ BTF_DECL_TAG_ENC(NAME_TBD, 3, -2), BTF_END_RAW, }, BTF_STR_SEC("\0arg1\0arg2\0f\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid component_idx", }, { .descr = "decl_tag test #13, typedef, well-formed", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), BTF_END_RAW, }, BTF_STR_SEC("\0t\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, }, { .descr = "decl_tag test #14, typedef, invalid component_idx", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ BTF_DECL_TAG_ENC(NAME_TBD, 2, 0), BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid component_idx", }, { .descr = "decl_tag test #15, func, invalid func proto", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_DECL_TAG_ENC(NAME_TBD, 3, 0), /* [2] */ BTF_FUNC_ENC(NAME_TBD, 8), /* [3] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag\0func"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Invalid type_id", }, { .descr = "decl_tag test #16, func proto, return type", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 2), (-1), /* [3] */ BTF_FUNC_PROTO_ENC(3, 0), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag1"), .btf_load_err = true, .err_str = "Invalid return type", }, { .descr = "decl_tag test #17, func proto, argument", .raw_types = { BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 4), (-1), /* [1] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), /* [2] */ BTF_FUNC_PROTO_ENC(0, 1), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_VAR_ENC(NAME_TBD, 2, 0), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0local\0tag1\0var"), .btf_load_err = true, .err_str = "Invalid arg#1", }, { .descr = "decl_tag test #18, decl_tag as the map key type", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_STRUCT_ENC(0, 2, 8), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_MEMBER_ENC(NAME_TBD, 1, 32), BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */ BTF_END_RAW, }, BTF_STR_SEC("\0m1\0m2\0tag"), .map_type = BPF_MAP_TYPE_HASH, .map_name = "tag_type_check_btf", .key_size = 8, .value_size = 4, .key_type_id = 3, .value_type_id = 1, .max_entries = 1, .map_create_err = true, }, { .descr = "decl_tag test #19, decl_tag as the map value type", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_STRUCT_ENC(0, 2, 8), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_MEMBER_ENC(NAME_TBD, 1, 32), BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */ BTF_END_RAW, }, BTF_STR_SEC("\0m1\0m2\0tag"), .map_type = BPF_MAP_TYPE_HASH, .map_name = "tag_type_check_btf", .key_size = 4, .value_size = 8, .key_type_id = 1, .value_type_id = 3, .max_entries = 1, .map_create_err = true, }, { .descr = "type_tag test #1", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [2] */ BTF_PTR_ENC(2), /* [3] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, }, { .descr = "type_tag test #2, type tag order", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_CONST_ENC(3), /* [2] */ BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [3] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Type tags don't precede modifiers", }, { .descr = "type_tag test #3, type tag order", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ BTF_CONST_ENC(4), /* [3] */ BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Type tags don't precede modifiers", }, { .descr = "type_tag test #4, type tag order", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [2] */ BTF_CONST_ENC(4), /* [3] */ BTF_TYPE_TAG_ENC(NAME_TBD, 1), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Type tags don't precede modifiers", }, { .descr = "type_tag test #5, type tag order", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ BTF_CONST_ENC(1), /* [3] */ BTF_TYPE_TAG_ENC(NAME_TBD, 2), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, }, { .descr = "type_tag test #6, type tag order", .raw_types = { BTF_PTR_ENC(2), /* [1] */ BTF_TYPE_TAG_ENC(NAME_TBD, 3), /* [2] */ BTF_CONST_ENC(4), /* [3] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [4] */ BTF_PTR_ENC(6), /* [5] */ BTF_CONST_ENC(2), /* [6] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 1, .max_entries = 1, .btf_load_err = true, .err_str = "Type tags don't precede modifiers", }, { .descr = "enum64 test #1, unsigned, size 8", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [2] */ BTF_ENUM64_ENC(NAME_TBD, 0, 0), BTF_ENUM64_ENC(NAME_TBD, 1, 1), BTF_END_RAW, }, BTF_STR_SEC("\0a\0b\0c"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 8, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, }, { .descr = "enum64 test #2, signed, size 4", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 1, 2), 4), /* [2] */ BTF_ENUM64_ENC(NAME_TBD, -1, 0), BTF_ENUM64_ENC(NAME_TBD, 1, 0), BTF_END_RAW, }, BTF_STR_SEC("\0a\0b\0c"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "tag_type_check_btf", .key_size = sizeof(int), .value_size = 4, .key_type_id = 1, .value_type_id = 2, .max_entries = 1, }, }; /* 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: free(strs_idx); if (err) { free(raw_btf); return NULL; } return raw_btf; } static int load_raw_btf(const void *raw_data, size_t raw_size) { LIBBPF_OPTS(bpf_btf_load_opts, opts); int btf_fd; if (always_log) { opts.log_buf = btf_log_buf, opts.log_size = BTF_LOG_BUF_SIZE, opts.log_level = 1; } btf_fd = bpf_btf_load(raw_data, raw_size, &opts); if (btf_fd < 0 && !always_log) { opts.log_buf = btf_log_buf, opts.log_size = BTF_LOG_BUF_SIZE, opts.log_level = 1; btf_fd = bpf_btf_load(raw_data, raw_size, &opts); } return btf_fd; } static void do_test_raw(unsigned int test_num) { struct btf_raw_test *test = &raw_tests[test_num - 1]; LIBBPF_OPTS(bpf_map_create_opts, opts); 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 = load_raw_btf(raw_btf, raw_btf_size); free(raw_btf); err = ((btf_fd < 0) != 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\n", test->err_str)) { err = -1; goto done; } if (err || btf_fd < 0) goto done; if (!test->map_type) goto done; opts.btf_fd = btf_fd; opts.btf_key_type_id = test->key_type_id; opts.btf_value_type_id = test->value_type_id; map_fd = bpf_map_create(test->map_type, test->map_name, test->key_size, test->value_size, test->max_entries, &opts); err = ((map_fd < 0) != 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 >= 0) close(btf_fd); if (map_fd >= 0) 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 = load_raw_btf(raw_btf, raw_btf_size); if (CHECK(btf_fd < 0, "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_btf_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_btf_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 >= 0) 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]; LIBBPF_OPTS(bpf_map_create_opts, opts); 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] = load_raw_btf(raw_btf, raw_btf_size); if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) { err = -1; goto done; } /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */ info_len = sizeof(info[0]); err = bpf_btf_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] < 0, "errno:%d", errno)) { err = -1; goto done; } ret = 0; err = bpf_btf_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 */ opts.btf_fd = btf_fd[0]; opts.btf_key_type_id = 1; opts.btf_value_type_id = 2; map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_btf_id", sizeof(int), sizeof(int), 4, &opts); if (CHECK(map_fd < 0, "errno:%d", errno)) { err = -1; goto done; } info_len = sizeof(map_info); err = bpf_map_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] < 0, "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; fprintf(stderr, "OK"); done: if (*btf_log_buf && (err || always_log)) fprintf(stderr, "\n%s", btf_log_buf); free(raw_btf); if (map_fd >= 0) close(map_fd); for (i = 0; i < 2; i++) { free(user_btf[i]); if (btf_fd[i] >= 0) 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 = load_raw_btf(raw_btf, raw_btf_size); if (CHECK(btf_fd <= 0, "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_btf_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 >= 0) close(btf_fd); } struct btf_file_test { const char *file; bool btf_kv_notfound; }; static struct btf_file_test file_tests[] = { { .file = "test_btf_newkv.bpf.o", }, { .file = "test_btf_nokv.bpf.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); err = libbpf_get_error(btf); if (err) { if (err == -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); /* temporary disable LIBBPF_STRICT_MAP_DEFINITIONS to test legacy maps */ libbpf_set_strict_mode(LIBBPF_STRICT_ALL & ~LIBBPF_STRICT_MAP_DEFINITIONS); obj = bpf_object__open(test->file); err = libbpf_get_error(obj); if (CHECK(err, "obj: %d", err)) return; prog = bpf_object__next_program(obj, NULL); 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_prog_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err < 0, "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_prog_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err < 0, "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; } btf = btf__load_from_kernel_by_id(info.btf_id); err = libbpf_get_error(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: libbpf_set_strict_mode(LIBBPF_STRICT_ALL); btf__free(btf); 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); return 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; LIBBPF_OPTS(bpf_map_create_opts, opts); 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 = load_raw_btf(raw_btf, raw_btf_size); free(raw_btf); if (CHECK(btf_fd < 0, "errno:%d\n", errno)) { err = -1; goto done; } opts.btf_fd = btf_fd; opts.btf_key_type_id = test->key_type_id; opts.btf_value_type_id = test->value_type_id; map_fd = bpf_map_create(test->map_type, test->map_name, test->key_size, test->value_size, test->max_entries, &opts); if (CHECK(map_fd < 0, "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 < 0) 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 < 0) 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 >= 0) close(btf_fd); if (map_fd >= 0) 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_prog_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err < 0, "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_prog_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err < 0, "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_prog_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err < 0, "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_prog_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 < 0 || 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 = 0; 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 = load_raw_btf(raw_btf, raw_btf_size); free(raw_btf); if (CHECK(btf_fd < 0, "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); err = libbpf_get_error(patched_linfo); if (err) { 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 < 0) != 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 < 0) 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 >= 0) close(btf_fd); if (prog_fd >= 0) close(prog_fd); if (!libbpf_get_error(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; }; static 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"), }, }, { .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"), }, }, { .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), 5, 88), /* [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; */ BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), /* float d; */ /* 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] */ /* tag -> [3] struct s */ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */ /* tag -> [3] struct s, member 1 */ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */ /* full copy of the above */ BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [9] */ BTF_TYPE_ARRAY_ENC(9, 9, 16), /* [10] */ BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [11] */ BTF_MEMBER_ENC(NAME_NTH(3), 12, 0), BTF_MEMBER_ENC(NAME_NTH(4), 13, 64), BTF_MEMBER_ENC(NAME_NTH(5), 10, 128), BTF_MEMBER_ENC(NAME_NTH(6), 9, 640), BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), BTF_PTR_ENC(11), /* [12] */ BTF_PTR_ENC(14), /* [13] */ BTF_CONST_ENC(9), /* [14] */ BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [15] */ BTF_DECL_TAG_ENC(NAME_NTH(2), 11, -1), /* [16] */ BTF_DECL_TAG_ENC(NAME_NTH(2), 11, 1), /* [17] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0float\0d"), }, .expect = { .raw_types = { /* int */ BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* int[16] */ BTF_TYPE_ARRAY_ENC(1, 1, 16), /* [2] */ /* struct s { */ BTF_STRUCT_ENC(NAME_NTH(8), 5, 88), /* [3] */ BTF_MEMBER_ENC(NAME_NTH(7), 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; */ BTF_MEMBER_ENC(NAME_NTH(4), 9, 672), /* float d; */ /* 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_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */ BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [9] */ BTF_END_RAW, }, BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"), }, }, { .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 = { .force_collisions = true, /* 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 = { .force_collisions = true, /* 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, 18), BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */ BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */ BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */ BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */ BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */ BTF_ENUM64_ENC(NAME_TBD, 0, 0), BTF_ENUM64_ENC(NAME_TBD, 1, 1), BTF_END_RAW, }, BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"), }, .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, 18), BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */ BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */ BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */ BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */ BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */ BTF_TYPE_TAG_ENC(NAME_TBD, 8), /* [18] type_tag */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8), /* [19] enum64 */ BTF_ENUM64_ENC(NAME_TBD, 0, 0), BTF_ENUM64_ENC(NAME_TBD, 1, 1), BTF_END_RAW, }, BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"), }, }, { .descr = "dedup: no int/float 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), /* all allowed sizes */ BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16), BTF_END_RAW, }, BTF_STR_SEC("\0int\0some other int\0float"), }, .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), /* all allowed sizes */ BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12), BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16), BTF_END_RAW, }, BTF_STR_SEC("\0int\0some other int\0float"), }, }, { .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] fwd enum with different size, size does not matter for fwd */ 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 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"), }, }, { .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 = { .force_collisions = true }, }, { .descr = "dedup: func/func_arg/var tags", .input = { .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* static int t */ BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */ /* void f(int a1, int a2) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ /* tag -> t */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [6] */ /* tag -> func */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [7] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [8] */ /* tag -> func arg a1 */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [9] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [10] */ BTF_END_RAW, }, BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), }, .expect = { .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [7] */ BTF_END_RAW, }, BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"), }, }, { .descr = "dedup: func/func_param tags", .input = { .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* void f(int a1, int a2) */ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */ /* void f(int a1, int a2) */ BTF_FUNC_PROTO_ENC(0, 2), /* [4] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_ENC(NAME_NTH(3), 4), /* [5] */ /* tag -> f: tag1, tag2 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [7] */ /* tag -> f/a2: tag1, tag2 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [8] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [9] */ /* tag -> f: tag1, tag3 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 5, -1), /* [10] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 5, -1), /* [11] */ /* tag -> f/a2: tag1, tag3 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 5, 1), /* [12] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 5, 1), /* [13] */ BTF_END_RAW, }, BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), }, .expect = { .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [5] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [7] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [8] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [9] */ BTF_END_RAW, }, BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"), }, }, { .descr = "dedup: struct/struct_member tags", .input = { .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */ BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [3] */ BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), /* tag -> t: tag1, tag2 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ /* tag -> t/m2: tag1, tag2 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */ /* tag -> t: tag1, tag3 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [8] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [9] */ /* tag -> t/m2: tag1, tag3 */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [10] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [11] */ BTF_END_RAW, }, BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), }, .expect = { .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */ BTF_MEMBER_ENC(NAME_NTH(2), 1, 0), BTF_MEMBER_ENC(NAME_NTH(3), 1, 32), BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [3] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 2, -1), /* [5] */ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */ BTF_DECL_TAG_ENC(NAME_NTH(6), 2, 1), /* [8] */ BTF_END_RAW, }, BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"), }, }, { .descr = "dedup: typedef tags", .input = { .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [3] */ /* tag -> t: tag1, tag2 */ BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [5] */ /* tag -> t: tag1, tag3 */ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [7] */ BTF_END_RAW, }, BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), }, .expect = { .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */ BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [3] */ BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [5] */ BTF_END_RAW, }, BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"), }, }, { .descr = "dedup: btf_type_tag #1", .input = { .raw_types = { /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ BTF_PTR_ENC(3), /* [4] */ /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [5] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 5), /* [6] */ BTF_PTR_ENC(6), /* [7] */ /* ptr -> tag1 -> int */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [8] */ BTF_PTR_ENC(8), /* [9] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0tag2"), }, .expect = { .raw_types = { /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ BTF_PTR_ENC(3), /* [4] */ /* ptr -> tag1 -> int */ BTF_PTR_ENC(2), /* [5] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0tag2"), }, }, { .descr = "dedup: btf_type_tag #2", .input = { .raw_types = { /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ BTF_PTR_ENC(3), /* [4] */ /* ptr -> tag2 -> int */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ BTF_PTR_ENC(5), /* [6] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0tag2"), }, .expect = { .raw_types = { /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ BTF_PTR_ENC(3), /* [4] */ /* ptr -> tag2 -> int */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ BTF_PTR_ENC(5), /* [6] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0tag2"), }, }, { .descr = "dedup: btf_type_tag #3", .input = { .raw_types = { /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ BTF_PTR_ENC(3), /* [4] */ /* ptr -> tag1 -> tag2 -> int */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */ BTF_PTR_ENC(6), /* [7] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0tag2"), }, .expect = { .raw_types = { /* ptr -> tag2 -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 2), /* [3] */ BTF_PTR_ENC(3), /* [4] */ /* ptr -> tag1 -> tag2 -> int */ BTF_TYPE_TAG_ENC(NAME_NTH(2), 1), /* [5] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 5), /* [6] */ BTF_PTR_ENC(6), /* [7] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0tag2"), }, }, { .descr = "dedup: btf_type_tag #4", .input = { .raw_types = { /* ptr -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_PTR_ENC(2), /* [3] */ /* ptr -> tag1 -> long */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */ BTF_PTR_ENC(5), /* [6] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1"), }, .expect = { .raw_types = { /* ptr -> tag1 -> int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_PTR_ENC(2), /* [3] */ /* ptr -> tag1 -> long */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* [4] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 4), /* [5] */ BTF_PTR_ENC(5), /* [6] */ BTF_END_RAW, }, BTF_STR_SEC("\0tag1"), }, }, { .descr = "dedup: btf_type_tag #5, struct", .input = { .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */ BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)), BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [4] */ BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [5] */ BTF_MEMBER_ENC(NAME_NTH(3), 4, BTF_MEMBER_OFFSET(0, 0)), BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0t\0m"), }, .expect = { .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_TAG_ENC(NAME_NTH(1), 1), /* [2] */ BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4), /* [3] */ BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)), BTF_END_RAW, }, BTF_STR_SEC("\0tag1\0t\0m"), }, }, { .descr = "dedup: enum64, standalone", .input = { .raw_types = { BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val"), }, .expect = { .raw_types = { BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val"), }, }, { .descr = "dedup: enum64, fwd resolution", .input = { .raw_types = { /* [1] fwd enum64 'e1' before full enum */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), /* [2] full enum64 'e1' after fwd */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), /* [3] full enum64 'e2' before fwd */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(4), 0, 456), /* [4] fwd enum64 'e2' after full enum */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), /* [5] incompatible full enum64 with different value */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 0, 321), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), }, .expect = { .raw_types = { /* [1] full enum64 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 123), /* [2] full enum64 'e2' */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(4), 0, 456), /* [3] incompatible full enum64 with different value */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 0, 321), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"), }, }, { .descr = "dedup: enum and enum64, no dedup", .input = { .raw_types = { /* [1] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), BTF_ENUM_ENC(NAME_NTH(2), 1), /* [2] enum64 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4), BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val"), }, .expect = { .raw_types = { /* [1] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), BTF_ENUM_ENC(NAME_NTH(2), 1), /* [2] enum64 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4), BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val"), }, }, { .descr = "dedup: enum of different size: no dedup", .input = { .raw_types = { /* [1] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), BTF_ENUM_ENC(NAME_NTH(2), 1), /* [2] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2), BTF_ENUM_ENC(NAME_NTH(2), 1), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val"), }, .expect = { .raw_types = { /* [1] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), BTF_ENUM_ENC(NAME_NTH(2), 1), /* [2] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2), BTF_ENUM_ENC(NAME_NTH(2), 1), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val"), }, }, { .descr = "dedup: enum fwd to enum64", .input = { .raw_types = { /* [1] enum64 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), /* [2] enum 'e1' fwd */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4), /* [3] typedef enum 'e1' td */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val\0td"), }, .expect = { .raw_types = { /* [1] enum64 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8), BTF_ENUM64_ENC(NAME_NTH(2), 1, 0), /* [2] typedef enum 'e1' td */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val\0td"), }, }, { .descr = "dedup: enum64 fwd to enum", .input = { .raw_types = { /* [1] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), BTF_ENUM_ENC(NAME_NTH(2), 1), /* [2] enum64 'e1' fwd */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8), /* [3] typedef enum 'e1' td */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val\0td"), }, .expect = { .raw_types = { /* [1] enum 'e1' */ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), BTF_ENUM_ENC(NAME_NTH(2), 1), /* [2] typedef enum 'e1' td */ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1), BTF_END_RAW, }, BTF_STR_SEC("\0e1\0e1_val\0td"), }, }, { .descr = "dedup: standalone fwd declaration struct", /* * Verify that CU1:foo and CU2:foo would be unified and that * typedef/ptr would be updated to point to CU1:foo. * * // CU 1: * struct foo { int x; }; * * // CU 2: * struct foo; * typedef struct foo *foo_ptr; */ .input = { .raw_types = { /* CU 1 */ BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ /* CU 2 */ BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ BTF_PTR_ENC(3), /* [4] */ BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0foo_ptr"), }, .expect = { .raw_types = { BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ BTF_PTR_ENC(1), /* [3] */ BTF_TYPEDEF_ENC(NAME_NTH(3), 3), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0foo_ptr"), }, }, { .descr = "dedup: standalone fwd declaration union", /* * Verify that CU1:foo and CU2:foo would be unified and that * typedef/ptr would be updated to point to CU1:foo. * Same as "dedup: standalone fwd declaration struct" but for unions. * * // CU 1: * union foo { int x; }; * * // CU 2: * union foo; * typedef union foo *foo_ptr; */ .input = { .raw_types = { /* CU 1 */ BTF_UNION_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ /* CU 2 */ BTF_FWD_ENC(NAME_TBD, 1), /* [3] */ BTF_PTR_ENC(3), /* [4] */ BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0foo_ptr"), }, .expect = { .raw_types = { BTF_UNION_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ BTF_PTR_ENC(1), /* [3] */ BTF_TYPEDEF_ENC(NAME_NTH(3), 3), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0foo_ptr"), }, }, { .descr = "dedup: standalone fwd declaration wrong kind", /* * Negative test for btf_dedup_resolve_fwds: * - CU1:foo is a struct, C2:foo is a union, thus CU2:foo is not deduped; * - typedef/ptr should remain unchanged as well. * * // CU 1: * struct foo { int x; }; * * // CU 2: * union foo; * typedef union foo *foo_ptr; */ .input = { .raw_types = { /* CU 1 */ BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ /* CU 2 */ BTF_FWD_ENC(NAME_NTH(3), 1), /* [3] */ BTF_PTR_ENC(3), /* [4] */ BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0foo_ptr"), }, .expect = { .raw_types = { /* CU 1 */ BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ /* CU 2 */ BTF_FWD_ENC(NAME_NTH(3), 1), /* [3] */ BTF_PTR_ENC(3), /* [4] */ BTF_TYPEDEF_ENC(NAME_NTH(3), 4), /* [5] */ BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0foo_ptr"), }, }, { .descr = "dedup: standalone fwd declaration name conflict", /* * Negative test for btf_dedup_resolve_fwds: * - two candidates for CU2:foo dedup, thus it is unchanged; * - typedef/ptr should remain unchanged as well. * * // CU 1: * struct foo { int x; }; * * // CU 2: * struct foo; * typedef struct foo *foo_ptr; * * // CU 3: * struct foo { int x; int y; }; */ .input = { .raw_types = { /* CU 1 */ BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ /* CU 2 */ BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ BTF_PTR_ENC(3), /* [4] */ BTF_TYPEDEF_ENC(NAME_NTH(4), 4), /* [5] */ /* CU 3 */ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [6] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_MEMBER_ENC(NAME_NTH(3), 2, 0), BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"), }, .expect = { .raw_types = { /* CU 1 */ BTF_STRUCT_ENC(NAME_NTH(1), 1, 4), /* [1] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ /* CU 2 */ BTF_FWD_ENC(NAME_NTH(1), 0), /* [3] */ BTF_PTR_ENC(3), /* [4] */ BTF_TYPEDEF_ENC(NAME_NTH(4), 4), /* [5] */ /* CU 3 */ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [6] */ BTF_MEMBER_ENC(NAME_NTH(2), 2, 0), BTF_MEMBER_ENC(NAME_NTH(3), 2, 0), BTF_END_RAW, }, BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"), }, }, }; 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: case BTF_KIND_FLOAT: case BTF_KIND_TYPE_TAG: 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_ENUM64: return base_size + vlen * sizeof(struct btf_enum64); 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); case BTF_KIND_DECL_TAG: return base_size + sizeof(struct btf_decl_tag); 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) { 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; 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); err = libbpf_get_error(test_btf); free(raw_btf); if (CHECK(err, "invalid test_btf errno:%d", err)) { 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); err = libbpf_get_error(expect_btf); free(raw_btf); if (CHECK(err, "invalid expect_btf errno:%d", err)) { err = -1; goto done; } test->opts.sz = sizeof(test->opts); err = btf__dedup(test_btf, &test->opts); if (CHECK(err, "btf_dedup failed errno:%d", err)) { err = -1; goto done; } test_btf_data = btf__raw_data(test_btf, &test_btf_size); expect_btf_data = btf__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; } expect_str_cur = expect_strs; expect_str_end = expect_strs + expect_hdr->str_len; while (expect_str_cur < expect_str_end) { size_t test_len, expect_len; int off; off = btf__find_str(test_btf, expect_str_cur); if (CHECK(off < 0, "exp str '%s' not found: %d\n", expect_str_cur, off)) { err = -1; goto done; } test_str_cur = btf__str_by_offset(test_btf, off); 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; } expect_str_cur += expect_len + 1; } test_nr_types = btf__type_cnt(test_btf); expect_nr_types = btf__type_cnt(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(btf_kind(test_type) != btf_kind(expect_type), "type %d kind: exp %d != got %u\n", i, btf_kind(expect_type), btf_kind(test_type))) { err = -1; goto done; } if (CHECK(test_type->info != expect_type->info, "type %d info: exp %d != got %u\n", i, expect_type->info, test_type->info)) { err = -1; goto done; } if (CHECK(test_type->size != expect_type->size, "type %d size/type: exp %d != got %u\n", i, expect_type->size, test_type->size)) { err = -1; goto done; } } done: btf__free(test_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(); }
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