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author | Alexei Starovoitov <ast@kernel.org> | 2021-05-13 17:36:18 -0700 |
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committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-05-19 00:40:56 +0200 |
commit | 7723256bf2443d6bd7db3e583953d14107955233 (patch) | |
tree | b650411ac6e6ac55547b4816a96955a4759b29b1 /tools/lib/bpf/libbpf.h | |
parent | libbpf: Cleanup temp FDs when intermediate sys_bpf fails. (diff) | |
download | linux-dev-7723256bf2443d6bd7db3e583953d14107955233.tar.xz linux-dev-7723256bf2443d6bd7db3e583953d14107955233.zip |
libbpf: Introduce bpf_map__initial_value().
Introduce bpf_map__initial_value() to read initial contents
of mmaped data/rodata/bss maps.
Note that bpf_map__set_initial_value() doesn't allow modifying
kconfig map while bpf_map__initial_value() allows reading
its values.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210514003623.28033-17-alexei.starovoitov@gmail.com
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
-rw-r--r-- | tools/lib/bpf/libbpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 46b31c1f4849..d98523558f39 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -471,6 +471,7 @@ LIBBPF_API int bpf_map__set_priv(struct bpf_map *map, void *priv, LIBBPF_API void *bpf_map__priv(const struct bpf_map *map); LIBBPF_API int bpf_map__set_initial_value(struct bpf_map *map, const void *data, size_t size); +LIBBPF_API const void *bpf_map__initial_value(struct bpf_map *map, size_t *psize); LIBBPF_API bool bpf_map__is_offload_neutral(const struct bpf_map *map); LIBBPF_API bool bpf_map__is_internal(const struct bpf_map *map); LIBBPF_API int bpf_map__set_pin_path(struct bpf_map *map, const char *path); |