libbpf.c (765a34130ea506fafefe179bdfa47da296016d92) libbpf.c (aaf6886d9b53d34f0a3d2f577ddc1224026d12ab)
1// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
2
3/*
4 * Common eBPF ELF object loading operations.
5 *
6 * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
7 * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
8 * Copyright (C) 2015 Huawei Inc.

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3056 if (err)
3057 break;
3058 }
3059 }
3060
3061 return libbpf_err(err);
3062}
3063
1// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
2
3/*
4 * Common eBPF ELF object loading operations.
5 *
6 * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
7 * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
8 * Copyright (C) 2015 Huawei Inc.

--- 3047 unchanged lines hidden (view full) ---

3056 if (err)
3057 break;
3058 }
3059 }
3060
3061 return libbpf_err(err);
3062}
3063
3064int btf__finalize_data(struct bpf_object *obj, struct btf *btf)
3065{
3066 return btf_finalize_data(obj, btf);
3067}
3068
3069static int bpf_object__finalize_btf(struct bpf_object *obj)
3070{
3071 int err;
3072
3073 if (!obj->btf)
3074 return 0;
3075
3076 err = btf_finalize_data(obj, obj->btf);

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4392
4393 prog->nr_reloc++;
4394 }
4395 return 0;
4396}
4397
4398static int bpf_map_find_btf_info(struct bpf_object *obj, struct bpf_map *map)
4399{
3064static int bpf_object__finalize_btf(struct bpf_object *obj)
3065{
3066 int err;
3067
3068 if (!obj->btf)
3069 return 0;
3070
3071 err = btf_finalize_data(obj, obj->btf);

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4387
4388 prog->nr_reloc++;
4389 }
4390 return 0;
4391}
4392
4393static int bpf_map_find_btf_info(struct bpf_object *obj, struct bpf_map *map)
4394{
4400 struct bpf_map_def *def = &map->def;
4401 __u32 key_type_id = 0, value_type_id = 0;
4402 int ret;
4395 int id;
4403
4404 if (!obj->btf)
4405 return -ENOENT;
4406
4407 /* if it's BTF-defined map, we don't need to search for type IDs.
4408 * For struct_ops map, it does not need btf_key_type_id and
4409 * btf_value_type_id.
4410 */
4396
4397 if (!obj->btf)
4398 return -ENOENT;
4399
4400 /* if it's BTF-defined map, we don't need to search for type IDs.
4401 * For struct_ops map, it does not need btf_key_type_id and
4402 * btf_value_type_id.
4403 */
4411 if (map->sec_idx == obj->efile.btf_maps_shndx ||
4412 bpf_map__is_struct_ops(map))
4404 if (map->sec_idx == obj->efile.btf_maps_shndx || bpf_map__is_struct_ops(map))
4413 return 0;
4414
4405 return 0;
4406
4415 if (!bpf_map__is_internal(map)) {
4416 pr_warn("Use of BPF_ANNOTATE_KV_PAIR is deprecated, use BTF-defined maps in .maps section instead\n");
4417#pragma GCC diagnostic push
4418#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
4419 ret = btf__get_map_kv_tids(obj->btf, map->name, def->key_size,
4420 def->value_size, &key_type_id,
4421 &value_type_id);
4422#pragma GCC diagnostic pop
4423 } else {
4424 /*
4425 * LLVM annotates global data differently in BTF, that is,
4426 * only as '.data', '.bss' or '.rodata'.
4427 */
4428 ret = btf__find_by_name(obj->btf, map->real_name);
4429 }
4430 if (ret < 0)
4431 return ret;
4407 /*
4408 * LLVM annotates global data differently in BTF, that is,
4409 * only as '.data', '.bss' or '.rodata'.
4410 */
4411 if (!bpf_map__is_internal(map))
4412 return -ENOENT;
4432
4413
4433 map->btf_key_type_id = key_type_id;
4434 map->btf_value_type_id = bpf_map__is_internal(map) ?
4435 ret : value_type_id;
4414 id = btf__find_by_name(obj->btf, map->real_name);
4415 if (id < 0)
4416 return id;
4417
4418 map->btf_key_type_id = 0;
4419 map->btf_value_type_id = id;
4436 return 0;
4437}
4438
4439static int bpf_get_map_info_from_fdinfo(int fd, struct bpf_map_info *info)
4440{
4441 char file[PATH_MAX], buff[4096];
4442 FILE *fp;
4443 __u32 val;

--- 8788 unchanged lines hidden --- 		4420 return 0;
4421}
4422
4423static int bpf_get_map_info_from_fdinfo(int fd, struct bpf_map_info *info)
4424{
4425 char file[PATH_MAX], buff[4096];
4426 FILE *fp;
4427 __u32 val;

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