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| author | Andrii Nakryiko <andrii@kernel.org> | 2021-03-18 22:40:28 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-03-19 02:14:22 +0300 |
| commit | 90d76d3ececc74bf43b2a97f178dadfa1e52be54 (patch) | |
| tree | 8efd86b33ebb93bc89683b9a3410f3bcc6219e24 /tools/lib/bpf/strset.h | |
| parent | 3b029e06f624efa90c9a4354e408acf134adb185 (diff) | |
| download | linux-90d76d3ececc74bf43b2a97f178dadfa1e52be54.tar.xz | |
libbpf: Extract internal set-of-strings datastructure APIs
Extract BTF logic for maintaining a set of strings data structure, used for
BTF strings section construction in writable mode, into separate re-usable
API. This data structure is going to be used by bpf_linker to maintains ELF
STRTAB section, which has the same layout as BTF strings section.
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210318194036.3521577-5-andrii@kernel.org
Diffstat (limited to 'tools/lib/bpf/strset.h')
| -rw-r--r-- | tools/lib/bpf/strset.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/lib/bpf/strset.h b/tools/lib/bpf/strset.h new file mode 100644 index 000000000000..b6ddf77a83c2 --- /dev/null +++ b/tools/lib/bpf/strset.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ + +/* Copyright (c) 2021 Facebook */ +#ifndef __LIBBPF_STRSET_H +#define __LIBBPF_STRSET_H + +#include <stdbool.h> +#include <stddef.h> + +struct strset; + +struct strset *strset__new(size_t max_data_sz, const char *init_data, size_t init_data_sz); +void strset__free(struct strset *set); + +const char *strset__data(const struct strset *set); +size_t strset__data_size(const struct strset *set); + +int strset__find_str(struct strset *set, const char *s); +int strset__add_str(struct strset *set, const char *s); + +#endif /* __LIBBPF_STRSET_H */ |